Patrice Wendling

Posttraumatic stress disorder (PTSD) may enhance the risk for obstructive sleep apnea (OSA) in older male veterans, the results of a cross-sectional twin study suggested. However, additional high-quality research is needed and may yield important mechanistic insights into both conditions and improve treatment, experts said.

In the trial, increasing PTSD symptom severity was associated with increasing severity of OSA, even after controlling for multiple factors.

“The strength of the association was a bit surprising,” said study investigator Amit J. Shah, MD, MSCR, Emory University, Atlanta, Georgia. “Many physicians and scientists may otherwise assume that the relationship between PTSD and sleep apnea would be primarily mediated by obesity, but we did not find that obesity explained our findings.”

The study was published online in JAMA Network Open.
 

A More Rigorous Evaluation

“Prior studies have shown an association between PTSD and sleep apnea, but the size of the association was not as strong,” Dr. Shah said, possibly because many were based on symptomatic patients referred for clinical evaluation of OSA and some relied on self-report of a sleep apnea diagnosis.

The current study involved 181 male twins, aged 61-71 years, including 66 pairs discordant for PTSD symptoms and 15 pairs discordant for PTSD diagnosis, who were recruited from the Vietnam Era Twin Registry and underwent a formal psychiatric and polysomnography evaluation as follow-up of the Emory Twin Study.

PTSD symptom severity was assessed using the self-administered Posttraumatic Stress Disorder Checklist (PCL). OSA was mild in 74% of participants, moderate to severe in 40%, and severe in 18%.

The mean apnea-hypopnea index (AHI) was 17.7 events per hour, and the mean proportion of the night with SaO₂ less than 90% was 8.9%.

In fully adjusted models, each 15-point within-pair difference in PCL score was associated with a 4.6 events-per-hour higher AHI, a 6.4 events-per-hour higher oxygen desaturation index, and a 4.8% greater sleep duration with SaO₂ less than 90%.

A current PTSD diagnosis is associated with an approximate 10-unit higher adjusted AHI in separate models involving potential cardiovascular mediators (10.5-unit; 95% CI, 5.7-15.3) and sociodemographic and psychiatric confounders (10.7-unit; 95% CI, 4.0-17.4).

The investigators called for more research into the underlying mechanisms but speculated that pharyngeal collapsibility and exaggerated loop gain, among others, may play a role.

“Our findings broaden the concept of OSA as one that may involve stress pathways in addition to the traditional mechanisms involving airway collapse and obesity,” Dr. Shah said. “We should be more suspicious of OSA as an important comorbidity in PTSD, given the high OSA prevalence that we found in PTSD veterans.”
 

Questions Remain

In an accompanying editorial, Steven H. Woodward, PhD, and Ruth M. Benca, MD, PhD, VA Palo Alto Health Care Systems, Palo Alto, California, noted the study affirmatively answers the decades-old question of whether rates of OSA are elevated in PTSD and “eliminates many potential confounders that might cast doubt on the PTSD-OSA association.”

However, they noted, it’s difficult to ascertain the directionality of this association and point out that, in terms of potential mechanisms, the oft-cited 1994 study linking sleep fragmentation with upper airway collapsibility has never been replicated and that a recent study found no difference in airway collapsibility or evidence of differential loop gain in combat veterans with and without PTSD.

Dr. Woodward and Dr. Benca also highlighted the large body of evidence that psychiatric disorders such as bipolar disorder, schizophrenia, and, in particular, major depressive disorder, are strongly associated with higher rates of OSA.

“In sum, we do not believe that a fair reading of the current literature supports a conclusion that PTSD bears an association with OSA that does not overlap with those manifested by other psychiatric disorders,” they wrote.

“This commentary is not intended to discourage any specific line of inquiry. Rather, we seek to keep the door open as wide as possible to hypotheses and research designs aimed at elucidating the relationships between OSA and psychiatric disorders,” Dr. Woodward and Dr. Benca concluded.

In response, Dr. Shah said the editorialists’ “point about psychiatric conditions other than PTSD also being important in OSA is well taken. In our own cohort, we did not see such an association, but that does not mean that this does not exist.

“Autonomic physiology, which we plan to study next, may underlie not only the PTSD-OSA relationship but also the relationship between other psychiatric factors and OSA,” he added.

The study was funded by grants from the National Institutes of Health (NIH). One study author reported receiving personal fees from Idorsia, and another reported receiving personal fees from Clinilabs, Eisai, Ferring Pharmaceuticals, Huxley, Idorsia, and Merck Sharp & Dohme. Dr. Benca reported receiving grants from the NIH and Eisai and personal fees from Eisai, Idorsia, Haleon, and Sage Therapeutics. Dr. Woodward reported having no relevant conflicts of interest.

A version of this article first appeared on Medscape.com.

Posttraumatic stress disorder (PTSD) may enhance the risk for obstructive sleep apnea (OSA) in older male veterans, the results of a cross-sectional twin study suggested. However, additional high-quality research is needed and may yield important mechanistic insights into both conditions and improve treatment, experts said.

In the trial, increasing PTSD symptom severity was associated with increasing severity of OSA, even after controlling for multiple factors.

“The strength of the association was a bit surprising,” said study investigator Amit J. Shah, MD, MSCR, Emory University, Atlanta, Georgia. “Many physicians and scientists may otherwise assume that the relationship between PTSD and sleep apnea would be primarily mediated by obesity, but we did not find that obesity explained our findings.”

The study was published online in JAMA Network Open.
 

A More Rigorous Evaluation

“Prior studies have shown an association between PTSD and sleep apnea, but the size of the association was not as strong,” Dr. Shah said, possibly because many were based on symptomatic patients referred for clinical evaluation of OSA and some relied on self-report of a sleep apnea diagnosis.

The current study involved 181 male twins, aged 61-71 years, including 66 pairs discordant for PTSD symptoms and 15 pairs discordant for PTSD diagnosis, who were recruited from the Vietnam Era Twin Registry and underwent a formal psychiatric and polysomnography evaluation as follow-up of the Emory Twin Study.

PTSD symptom severity was assessed using the self-administered Posttraumatic Stress Disorder Checklist (PCL). OSA was mild in 74% of participants, moderate to severe in 40%, and severe in 18%.

The mean apnea-hypopnea index (AHI) was 17.7 events per hour, and the mean proportion of the night with SaO₂ less than 90% was 8.9%.

In fully adjusted models, each 15-point within-pair difference in PCL score was associated with a 4.6 events-per-hour higher AHI, a 6.4 events-per-hour higher oxygen desaturation index, and a 4.8% greater sleep duration with SaO₂ less than 90%.

A current PTSD diagnosis is associated with an approximate 10-unit higher adjusted AHI in separate models involving potential cardiovascular mediators (10.5-unit; 95% CI, 5.7-15.3) and sociodemographic and psychiatric confounders (10.7-unit; 95% CI, 4.0-17.4).

The investigators called for more research into the underlying mechanisms but speculated that pharyngeal collapsibility and exaggerated loop gain, among others, may play a role.

“Our findings broaden the concept of OSA as one that may involve stress pathways in addition to the traditional mechanisms involving airway collapse and obesity,” Dr. Shah said. “We should be more suspicious of OSA as an important comorbidity in PTSD, given the high OSA prevalence that we found in PTSD veterans.”
 

Questions Remain

In an accompanying editorial, Steven H. Woodward, PhD, and Ruth M. Benca, MD, PhD, VA Palo Alto Health Care Systems, Palo Alto, California, noted the study affirmatively answers the decades-old question of whether rates of OSA are elevated in PTSD and “eliminates many potential confounders that might cast doubt on the PTSD-OSA association.”

However, they noted, it’s difficult to ascertain the directionality of this association and point out that, in terms of potential mechanisms, the oft-cited 1994 study linking sleep fragmentation with upper airway collapsibility has never been replicated and that a recent study found no difference in airway collapsibility or evidence of differential loop gain in combat veterans with and without PTSD.

Dr. Woodward and Dr. Benca also highlighted the large body of evidence that psychiatric disorders such as bipolar disorder, schizophrenia, and, in particular, major depressive disorder, are strongly associated with higher rates of OSA.

“In sum, we do not believe that a fair reading of the current literature supports a conclusion that PTSD bears an association with OSA that does not overlap with those manifested by other psychiatric disorders,” they wrote.

“This commentary is not intended to discourage any specific line of inquiry. Rather, we seek to keep the door open as wide as possible to hypotheses and research designs aimed at elucidating the relationships between OSA and psychiatric disorders,” Dr. Woodward and Dr. Benca concluded.

In response, Dr. Shah said the editorialists’ “point about psychiatric conditions other than PTSD also being important in OSA is well taken. In our own cohort, we did not see such an association, but that does not mean that this does not exist.

“Autonomic physiology, which we plan to study next, may underlie not only the PTSD-OSA relationship but also the relationship between other psychiatric factors and OSA,” he added.

The study was funded by grants from the National Institutes of Health (NIH). One study author reported receiving personal fees from Idorsia, and another reported receiving personal fees from Clinilabs, Eisai, Ferring Pharmaceuticals, Huxley, Idorsia, and Merck Sharp & Dohme. Dr. Benca reported receiving grants from the NIH and Eisai and personal fees from Eisai, Idorsia, Haleon, and Sage Therapeutics. Dr. Woodward reported having no relevant conflicts of interest.

A version of this article first appeared on Medscape.com.

Posttraumatic stress disorder (PTSD) may enhance the risk for obstructive sleep apnea (OSA) in older male veterans, the results of a cross-sectional twin study suggested. However, additional high-quality research is needed and may yield important mechanistic insights into both conditions and improve treatment, experts said.

In the trial, increasing PTSD symptom severity was associated with increasing severity of OSA, even after controlling for multiple factors.

“The strength of the association was a bit surprising,” said study investigator Amit J. Shah, MD, MSCR, Emory University, Atlanta, Georgia. “Many physicians and scientists may otherwise assume that the relationship between PTSD and sleep apnea would be primarily mediated by obesity, but we did not find that obesity explained our findings.”

The study was published online in JAMA Network Open.
 

A More Rigorous Evaluation

“Prior studies have shown an association between PTSD and sleep apnea, but the size of the association was not as strong,” Dr. Shah said, possibly because many were based on symptomatic patients referred for clinical evaluation of OSA and some relied on self-report of a sleep apnea diagnosis.

The current study involved 181 male twins, aged 61-71 years, including 66 pairs discordant for PTSD symptoms and 15 pairs discordant for PTSD diagnosis, who were recruited from the Vietnam Era Twin Registry and underwent a formal psychiatric and polysomnography evaluation as follow-up of the Emory Twin Study.

PTSD symptom severity was assessed using the self-administered Posttraumatic Stress Disorder Checklist (PCL). OSA was mild in 74% of participants, moderate to severe in 40%, and severe in 18%.

The mean apnea-hypopnea index (AHI) was 17.7 events per hour, and the mean proportion of the night with SaO₂ less than 90% was 8.9%.

In fully adjusted models, each 15-point within-pair difference in PCL score was associated with a 4.6 events-per-hour higher AHI, a 6.4 events-per-hour higher oxygen desaturation index, and a 4.8% greater sleep duration with SaO₂ less than 90%.

A current PTSD diagnosis is associated with an approximate 10-unit higher adjusted AHI in separate models involving potential cardiovascular mediators (10.5-unit; 95% CI, 5.7-15.3) and sociodemographic and psychiatric confounders (10.7-unit; 95% CI, 4.0-17.4).

The investigators called for more research into the underlying mechanisms but speculated that pharyngeal collapsibility and exaggerated loop gain, among others, may play a role.

“Our findings broaden the concept of OSA as one that may involve stress pathways in addition to the traditional mechanisms involving airway collapse and obesity,” Dr. Shah said. “We should be more suspicious of OSA as an important comorbidity in PTSD, given the high OSA prevalence that we found in PTSD veterans.”
 

Questions Remain

In an accompanying editorial, Steven H. Woodward, PhD, and Ruth M. Benca, MD, PhD, VA Palo Alto Health Care Systems, Palo Alto, California, noted the study affirmatively answers the decades-old question of whether rates of OSA are elevated in PTSD and “eliminates many potential confounders that might cast doubt on the PTSD-OSA association.”

However, they noted, it’s difficult to ascertain the directionality of this association and point out that, in terms of potential mechanisms, the oft-cited 1994 study linking sleep fragmentation with upper airway collapsibility has never been replicated and that a recent study found no difference in airway collapsibility or evidence of differential loop gain in combat veterans with and without PTSD.

Dr. Woodward and Dr. Benca also highlighted the large body of evidence that psychiatric disorders such as bipolar disorder, schizophrenia, and, in particular, major depressive disorder, are strongly associated with higher rates of OSA.

“In sum, we do not believe that a fair reading of the current literature supports a conclusion that PTSD bears an association with OSA that does not overlap with those manifested by other psychiatric disorders,” they wrote.

“This commentary is not intended to discourage any specific line of inquiry. Rather, we seek to keep the door open as wide as possible to hypotheses and research designs aimed at elucidating the relationships between OSA and psychiatric disorders,” Dr. Woodward and Dr. Benca concluded.

In response, Dr. Shah said the editorialists’ “point about psychiatric conditions other than PTSD also being important in OSA is well taken. In our own cohort, we did not see such an association, but that does not mean that this does not exist.

“Autonomic physiology, which we plan to study next, may underlie not only the PTSD-OSA relationship but also the relationship between other psychiatric factors and OSA,” he added.

The study was funded by grants from the National Institutes of Health (NIH). One study author reported receiving personal fees from Idorsia, and another reported receiving personal fees from Clinilabs, Eisai, Ferring Pharmaceuticals, Huxley, Idorsia, and Merck Sharp & Dohme. Dr. Benca reported receiving grants from the NIH and Eisai and personal fees from Eisai, Idorsia, Haleon, and Sage Therapeutics. Dr. Woodward reported having no relevant conflicts of interest.

A version of this article first appeared on Medscape.com.

Five commonly prescribed drugs may be associated with a lower risk for aneurysmal subarachnoid hemorrhage (aSAH), a drug-wide association study suggested.

The blood pressure drug lisinopril; the cholesterol drug simvastatin; the diabetes drug metformin; and the drug tamsulosin, prescribed for an enlarged prostate, were all associated with decreased aSAH risk, investigators found.

Conversely, four other drugs were associated with an increased risk for this severely morbid, often deadly, condition.

“The motivation for this study was the fact that we can currently prevent bleeding from intracranial aneurysms only by invasive treatment of those aneurysms with inherent complication risks,” said study investigator Ynte Ruigrok, MD, PhD, associate professor of neurology and neurosurgery, University Medical Center Utrecht, Utrecht, the Netherlands. “Drugs to reduce or eliminate this risk are not yet available. This study is a first step in identifying such drugs.”

The findings were published online in Neurology.
 

Surprising Results

For the study, the researchers used the Secure Anonymized Information Linkage data bank in Wales to identify 4879 patients with aSAH between January 2000 and December 2019 and 43,911 patients without aSAH matched on age, sex, and year of database entry. Clustering resulted in 2023 unique drugs, of which 205 were commonly prescribed.

After adjusting for other factors such as high blood pressure, alcohol abuse, smoking, and a total number of health conditions, the results yielded two surprises, Dr. Ruigrok observed.

The first was a significant decrease in aSAH risk for current use of lisinopril, compared with nonuse (odds ratio [OR], 0.63; 95% confidence interval [CI], 0.44-0.90), and a nonsignificant decrease with current use of amlodipine (OR, 0.82; 95% CI, 0.65-1.04).

“Hypertension is a major risk factor for occurrence and bleeding from aneurysms. If there is indeed a specific blood pressure–lowering drug that not only has a blood pressure–lowering effect but also has additional protection against aSAH, then perhaps that drug should become the drug of choice in aneurysm patients in the future,” he said.

Notably, recent use of both drugs, defined as between 1 year and 3 months before the index date, was associated with an increased risk for aSAH. This trend was not found for other antihypertensives and was significant for amlodipine but not lisinopril.

The reasons are unclear, but “we trust the findings on lisinopril more,” Dr. Ruigrok said. “The findings on amlodipine may be due to confounding by indication, specifically caused by hypertension. Therefore, it is important to validate our findings in an independent research cohort, and we are in the process of doing so.”

The study’s second surprise was the antidiabetic drug metformin and cholesterol-lowering drug simvastatin were also associated with reduced aSAH risk, Dr. Ruigrok noted.

“We already knew from previous studies that diabetes and high cholesterol are protective factors for aSAH,” he said. “Our results suggest that perhaps not the conditions themselves are protective for aSAH but rather the drugs used to treat these conditions with are.”

The risk for a ruptured brain aneurysm among current users was 42% lower with metformin (OR, 0.58; 95% CI, 0.43-0.78), 22% lower with simvastatin (OR, 0.78; 95% CI, 0.64-0.96), and 45% lower with tamsulosin (OR, 0.55; 95% CI, 0.32-0.93).

An increased risk for aSAH was found only in current users of warfarin (OR, 1.35; 95% CI, 1.02-1.79), venlafaxine (OR, 1.67; 95% CI, 1.01-2.75), prochlorperazine (OR, 2.15; 95% CI, 1.45-3.18), and co-codamol (OR, 1.31; 95% CI, 1.10-1.56).

Other drugs within the classes of vitamin K antagonists, serotonin reuptake inhibitors, conventional antipsychotics, and compound analgesics did not show an association with aSAH.

The study was limited by the use of drug prescriptions, and patients may not take their drugs or use them incorrectly, noted the researchers, led by Jos P. Kanning, MSc, also with University Medical Center Utrecht.

The study was supported by the European Research Council. The authors reported no relevant financial relationships.

A version of this article appeared on Medscape.com.

Five commonly prescribed drugs may be associated with a lower risk for aneurysmal subarachnoid hemorrhage (aSAH), a drug-wide association study suggested.

The blood pressure drug lisinopril; the cholesterol drug simvastatin; the diabetes drug metformin; and the drug tamsulosin, prescribed for an enlarged prostate, were all associated with decreased aSAH risk, investigators found.

Conversely, four other drugs were associated with an increased risk for this severely morbid, often deadly, condition.

“The motivation for this study was the fact that we can currently prevent bleeding from intracranial aneurysms only by invasive treatment of those aneurysms with inherent complication risks,” said study investigator Ynte Ruigrok, MD, PhD, associate professor of neurology and neurosurgery, University Medical Center Utrecht, Utrecht, the Netherlands. “Drugs to reduce or eliminate this risk are not yet available. This study is a first step in identifying such drugs.”

The findings were published online in Neurology.
 

Surprising Results

For the study, the researchers used the Secure Anonymized Information Linkage data bank in Wales to identify 4879 patients with aSAH between January 2000 and December 2019 and 43,911 patients without aSAH matched on age, sex, and year of database entry. Clustering resulted in 2023 unique drugs, of which 205 were commonly prescribed.

After adjusting for other factors such as high blood pressure, alcohol abuse, smoking, and a total number of health conditions, the results yielded two surprises, Dr. Ruigrok observed.

The first was a significant decrease in aSAH risk for current use of lisinopril, compared with nonuse (odds ratio [OR], 0.63; 95% confidence interval [CI], 0.44-0.90), and a nonsignificant decrease with current use of amlodipine (OR, 0.82; 95% CI, 0.65-1.04).

“Hypertension is a major risk factor for occurrence and bleeding from aneurysms. If there is indeed a specific blood pressure–lowering drug that not only has a blood pressure–lowering effect but also has additional protection against aSAH, then perhaps that drug should become the drug of choice in aneurysm patients in the future,” he said.

Notably, recent use of both drugs, defined as between 1 year and 3 months before the index date, was associated with an increased risk for aSAH. This trend was not found for other antihypertensives and was significant for amlodipine but not lisinopril.

The reasons are unclear, but “we trust the findings on lisinopril more,” Dr. Ruigrok said. “The findings on amlodipine may be due to confounding by indication, specifically caused by hypertension. Therefore, it is important to validate our findings in an independent research cohort, and we are in the process of doing so.”

The study’s second surprise was the antidiabetic drug metformin and cholesterol-lowering drug simvastatin were also associated with reduced aSAH risk, Dr. Ruigrok noted.

“We already knew from previous studies that diabetes and high cholesterol are protective factors for aSAH,” he said. “Our results suggest that perhaps not the conditions themselves are protective for aSAH but rather the drugs used to treat these conditions with are.”

The risk for a ruptured brain aneurysm among current users was 42% lower with metformin (OR, 0.58; 95% CI, 0.43-0.78), 22% lower with simvastatin (OR, 0.78; 95% CI, 0.64-0.96), and 45% lower with tamsulosin (OR, 0.55; 95% CI, 0.32-0.93).

An increased risk for aSAH was found only in current users of warfarin (OR, 1.35; 95% CI, 1.02-1.79), venlafaxine (OR, 1.67; 95% CI, 1.01-2.75), prochlorperazine (OR, 2.15; 95% CI, 1.45-3.18), and co-codamol (OR, 1.31; 95% CI, 1.10-1.56).

Other drugs within the classes of vitamin K antagonists, serotonin reuptake inhibitors, conventional antipsychotics, and compound analgesics did not show an association with aSAH.

The study was limited by the use of drug prescriptions, and patients may not take their drugs or use them incorrectly, noted the researchers, led by Jos P. Kanning, MSc, also with University Medical Center Utrecht.

The study was supported by the European Research Council. The authors reported no relevant financial relationships.

A version of this article appeared on Medscape.com.

Five commonly prescribed drugs may be associated with a lower risk for aneurysmal subarachnoid hemorrhage (aSAH), a drug-wide association study suggested.

The blood pressure drug lisinopril; the cholesterol drug simvastatin; the diabetes drug metformin; and the drug tamsulosin, prescribed for an enlarged prostate, were all associated with decreased aSAH risk, investigators found.

Conversely, four other drugs were associated with an increased risk for this severely morbid, often deadly, condition.

“The motivation for this study was the fact that we can currently prevent bleeding from intracranial aneurysms only by invasive treatment of those aneurysms with inherent complication risks,” said study investigator Ynte Ruigrok, MD, PhD, associate professor of neurology and neurosurgery, University Medical Center Utrecht, Utrecht, the Netherlands. “Drugs to reduce or eliminate this risk are not yet available. This study is a first step in identifying such drugs.”

The findings were published online in Neurology.
 

Surprising Results

For the study, the researchers used the Secure Anonymized Information Linkage data bank in Wales to identify 4879 patients with aSAH between January 2000 and December 2019 and 43,911 patients without aSAH matched on age, sex, and year of database entry. Clustering resulted in 2023 unique drugs, of which 205 were commonly prescribed.

After adjusting for other factors such as high blood pressure, alcohol abuse, smoking, and a total number of health conditions, the results yielded two surprises, Dr. Ruigrok observed.

The first was a significant decrease in aSAH risk for current use of lisinopril, compared with nonuse (odds ratio [OR], 0.63; 95% confidence interval [CI], 0.44-0.90), and a nonsignificant decrease with current use of amlodipine (OR, 0.82; 95% CI, 0.65-1.04).

“Hypertension is a major risk factor for occurrence and bleeding from aneurysms. If there is indeed a specific blood pressure–lowering drug that not only has a blood pressure–lowering effect but also has additional protection against aSAH, then perhaps that drug should become the drug of choice in aneurysm patients in the future,” he said.

Notably, recent use of both drugs, defined as between 1 year and 3 months before the index date, was associated with an increased risk for aSAH. This trend was not found for other antihypertensives and was significant for amlodipine but not lisinopril.

The reasons are unclear, but “we trust the findings on lisinopril more,” Dr. Ruigrok said. “The findings on amlodipine may be due to confounding by indication, specifically caused by hypertension. Therefore, it is important to validate our findings in an independent research cohort, and we are in the process of doing so.”

The study’s second surprise was the antidiabetic drug metformin and cholesterol-lowering drug simvastatin were also associated with reduced aSAH risk, Dr. Ruigrok noted.

“We already knew from previous studies that diabetes and high cholesterol are protective factors for aSAH,” he said. “Our results suggest that perhaps not the conditions themselves are protective for aSAH but rather the drugs used to treat these conditions with are.”

The risk for a ruptured brain aneurysm among current users was 42% lower with metformin (OR, 0.58; 95% CI, 0.43-0.78), 22% lower with simvastatin (OR, 0.78; 95% CI, 0.64-0.96), and 45% lower with tamsulosin (OR, 0.55; 95% CI, 0.32-0.93).

An increased risk for aSAH was found only in current users of warfarin (OR, 1.35; 95% CI, 1.02-1.79), venlafaxine (OR, 1.67; 95% CI, 1.01-2.75), prochlorperazine (OR, 2.15; 95% CI, 1.45-3.18), and co-codamol (OR, 1.31; 95% CI, 1.10-1.56).

Other drugs within the classes of vitamin K antagonists, serotonin reuptake inhibitors, conventional antipsychotics, and compound analgesics did not show an association with aSAH.

The study was limited by the use of drug prescriptions, and patients may not take their drugs or use them incorrectly, noted the researchers, led by Jos P. Kanning, MSc, also with University Medical Center Utrecht.

The study was supported by the European Research Council. The authors reported no relevant financial relationships.

A version of this article appeared on Medscape.com.

For those outside the medical profession, it took a global pandemic to finally understand how pervasive distress and suicide are among medical professionals, particularly surgeons.

For James Harrop, MD, it was made real years earlier by a colleague he’d trained alongside and worked with for decades — “one of the best surgeons I’ve ever seen” who, one day, just wasn’t there.

Lost in his own work, it wasn’t until Dr. Harrop, a professor of neurological and orthopedic surgery at Thomas Jefferson University, Philadelphia, read an article in The New England Journal of Medicine and realized his friend Michael Weinstein, MD, MPH, had been profoundly depressed for years and was hospitalized for his own safety.

Dr. Weinstein recovered and later gave grand rounds at Thomas Jefferson University, where he is an associate professor of surgery in the Acute Care Surgery Division. But the story stuck with Dr. Harrop.

“I said to Mike afterward, I’ve known you for 20 years and, retrospectively, going back, I never saw a single sign that you were depressed, sad, or had any issues, and he said to me ‘that’s because I did everything I could to make sure no one knew I had a problem,’ ” Dr. Harrop said during a talk on physician suicide on May 4 at the American Association of Neurological Surgeons (AANS) 2024 Annual Meeting.

“And that scared me because we need to help these people, we need to identify who they are.”

Surgeons at Greater Risk

Studies have reported that suicide and suicidal ideation are nearly twice as common among physicians, compared with among the general population. Among 9175 physicians surveyed in the 2023 Medscape Physician Suicide Report, 9% had considered suicide, and 1% had attempted it. The average for US adults is 4.9% and 0.5%, respectively.

Surgeons are at particularly high risk. A 2011 survey of 7905 US surgeons found that 1 in 16 (6.3%) had considered suicide in the previous year. A post-pandemic survey of more than 600 surgeons and surgical trainees reported that one in seven had suicidal ideation.

It’s often estimated that between 300 and 400 physicians die by suicide each year in the United States, but exact numbers are not known. Recent updated estimates from the National Violent Death Reporting System put the number at 119 physician suicides annually.

Notably, that’s no better than data reported more than 50 years ago in the landmark policy paper The Sick Physician: Impairment by Psychiatric Disorders, Including Alcoholism and Drug Dependence. It sounded the alarm on poor mental health in physicians and reported that 100 doctors died by suicide annually — the equivalent of the average medical school graduating class at the time.

“If I take my med school class and double it, that’s how many physicians die each year,” Dr. Harrop said. “And here’s the bad news, it starts in medical school.”

Research shows higher rates of depression and suicidal ideation in medical students and residents than in other graduates, with rates varying by stage of training, he noted.

In a multischool study, 12% of medical students and residents had probable major depression, 9.2% mild/moderate depression, and suicidal ideation jumped from 6.6% in the first year of medical school to 9.4% in year 4.

A recent AANS survey of 346 neurosurgery residents revealed 67% had burnout, and 41% seriously considered quitting. Burnout rose to a high of 76% in the second year and decreased to 49% and 54% in years 3 and 4, respectively.

Inadequate operating room exposure, hostile faculty, and stressors outside work were tied to burnout, whereas mentorship was linked to a threefold lower likelihood of burnout.

Notably, a 2019 study conservatively estimated that the annual cost of burnout-related physician turnover and reduced clinical hours was $4.6 billion nationally and $7600 per employed physician for an organization.

“We need to be kinder to each other, to look out for each other, and to talk to each other,” Dr. Harrop told conference attendees.

‘Death by a 1000 Cuts’

A host of factors are associated with physician suicide including long work hours, delayed gratification, difficulty balancing work and home life, changing healthcare systems, lawsuits, and the unique ability to prescribe medications, said Dr. Harrop.

“In my life, I think of it as death by 1000 cuts. Every day I come in, you’ve got another person attacking you,” he said, referencing Death by 1000 Cuts: Medscape National Physician Burnout & Suicide Report 2021.

Dr. Harrop told this news organization that talking with numerous experts in this field has made him appreciate that anyone is at a risk for suicide.

“The problem is an overload of external resources crushing your existence to the point that you become paralyzed and make the irrational thought that the best solution is to end your life,” he said.

Ann Stroink, MD, immediate past president of the AANS, said in an interview that one potential trigger for burnout is the current shortage of neurosurgeons in the United States, which has led to increased workloads and potential sleep deprivation among existing neurosurgeons.

“To address this critical issue, we’ve been advocating through legislative channels for additional Medicare[-funded] slots” to train more neurosurgeons, she said. “It’s imperative that we take proactive steps to ensure that our healthcare system can sustainably meet the needs of patients, while also supporting the well-being of our neurosurgical professionals.”

The AANS is also advocating for decreased regulatory burdens associated with Medicare and insurance coverage, such as prior authorization, to help alleviate the administrative burdens that often contribute to burnout among its members, Dr. Stroink said.

A Model for Suicide Prevention

Dr. Harrop emphasized that suicide is preventable and that there is “some good news.” Turning to another high-risk profession, he noted that the US Air Force was able to reduce its suicide rate by 42.7% between 1994 and 1998 by doing three basic things.

The agency established a central surveillance database, restructured prevention services, and, more importantly, began conducting annual suicide prevention and awareness training, using gatekeepers to channel at-risk personnel to appropriate agencies and performing mental health questionnaires at enrollment and annually.

Similarly, education, screening, and access to mental health treatment are core recommendations for a national response to depression and suicide in physician trainees, said Dr. Harrop, who noted that his own hospital has started using the Patient Health Questionnaire 9-item for its staff.

Asked by this news organization how much progress has been made since The Sick Physician report, Dr. Harrop said, “we are probably doing worse” in terms of the number of physician suicides, but “on a positive note, we are better with resources and acknowledgment that a problem exists.”

He noted that the AANS, which has published a physician burnout series on its Neurosurgery Blog, has shown great interest in this topic and is working to spread the word to help neurosurgeons. “My simple talk has led to me being approached by numerous people and healthcare organizations on how to further focus resources and prevention of this problem.”

Asked the one thing he would tell his friend, Michael Weinstein, a fellow surgeon, or trainee who’s struggling, Dr. Harrop said, “I am here for you, and we will get over these temporary problems, which are not significant in the big picture of what you mean to the world.”

Dr. Harrop reported serving as an adviser for Ethicon and Spiderwort.

A version of this article appeared on Medscape.com.

For those outside the medical profession, it took a global pandemic to finally understand how pervasive distress and suicide are among medical professionals, particularly surgeons.

For James Harrop, MD, it was made real years earlier by a colleague he’d trained alongside and worked with for decades — “one of the best surgeons I’ve ever seen” who, one day, just wasn’t there.

Lost in his own work, it wasn’t until Dr. Harrop, a professor of neurological and orthopedic surgery at Thomas Jefferson University, Philadelphia, read an article in The New England Journal of Medicine and realized his friend Michael Weinstein, MD, MPH, had been profoundly depressed for years and was hospitalized for his own safety.

Dr. Weinstein recovered and later gave grand rounds at Thomas Jefferson University, where he is an associate professor of surgery in the Acute Care Surgery Division. But the story stuck with Dr. Harrop.

“I said to Mike afterward, I’ve known you for 20 years and, retrospectively, going back, I never saw a single sign that you were depressed, sad, or had any issues, and he said to me ‘that’s because I did everything I could to make sure no one knew I had a problem,’ ” Dr. Harrop said during a talk on physician suicide on May 4 at the American Association of Neurological Surgeons (AANS) 2024 Annual Meeting.

“And that scared me because we need to help these people, we need to identify who they are.”

Surgeons at Greater Risk

Studies have reported that suicide and suicidal ideation are nearly twice as common among physicians, compared with among the general population. Among 9175 physicians surveyed in the 2023 Medscape Physician Suicide Report, 9% had considered suicide, and 1% had attempted it. The average for US adults is 4.9% and 0.5%, respectively.

Surgeons are at particularly high risk. A 2011 survey of 7905 US surgeons found that 1 in 16 (6.3%) had considered suicide in the previous year. A post-pandemic survey of more than 600 surgeons and surgical trainees reported that one in seven had suicidal ideation.

It’s often estimated that between 300 and 400 physicians die by suicide each year in the United States, but exact numbers are not known. Recent updated estimates from the National Violent Death Reporting System put the number at 119 physician suicides annually.

Notably, that’s no better than data reported more than 50 years ago in the landmark policy paper The Sick Physician: Impairment by Psychiatric Disorders, Including Alcoholism and Drug Dependence. It sounded the alarm on poor mental health in physicians and reported that 100 doctors died by suicide annually — the equivalent of the average medical school graduating class at the time.

“If I take my med school class and double it, that’s how many physicians die each year,” Dr. Harrop said. “And here’s the bad news, it starts in medical school.”

Research shows higher rates of depression and suicidal ideation in medical students and residents than in other graduates, with rates varying by stage of training, he noted.

In a multischool study, 12% of medical students and residents had probable major depression, 9.2% mild/moderate depression, and suicidal ideation jumped from 6.6% in the first year of medical school to 9.4% in year 4.

A recent AANS survey of 346 neurosurgery residents revealed 67% had burnout, and 41% seriously considered quitting. Burnout rose to a high of 76% in the second year and decreased to 49% and 54% in years 3 and 4, respectively.

Inadequate operating room exposure, hostile faculty, and stressors outside work were tied to burnout, whereas mentorship was linked to a threefold lower likelihood of burnout.

Notably, a 2019 study conservatively estimated that the annual cost of burnout-related physician turnover and reduced clinical hours was $4.6 billion nationally and $7600 per employed physician for an organization.

“We need to be kinder to each other, to look out for each other, and to talk to each other,” Dr. Harrop told conference attendees.

‘Death by a 1000 Cuts’

A host of factors are associated with physician suicide including long work hours, delayed gratification, difficulty balancing work and home life, changing healthcare systems, lawsuits, and the unique ability to prescribe medications, said Dr. Harrop.

“In my life, I think of it as death by 1000 cuts. Every day I come in, you’ve got another person attacking you,” he said, referencing Death by 1000 Cuts: Medscape National Physician Burnout & Suicide Report 2021.

Dr. Harrop told this news organization that talking with numerous experts in this field has made him appreciate that anyone is at a risk for suicide.

“The problem is an overload of external resources crushing your existence to the point that you become paralyzed and make the irrational thought that the best solution is to end your life,” he said.

Ann Stroink, MD, immediate past president of the AANS, said in an interview that one potential trigger for burnout is the current shortage of neurosurgeons in the United States, which has led to increased workloads and potential sleep deprivation among existing neurosurgeons.

“To address this critical issue, we’ve been advocating through legislative channels for additional Medicare[-funded] slots” to train more neurosurgeons, she said. “It’s imperative that we take proactive steps to ensure that our healthcare system can sustainably meet the needs of patients, while also supporting the well-being of our neurosurgical professionals.”

The AANS is also advocating for decreased regulatory burdens associated with Medicare and insurance coverage, such as prior authorization, to help alleviate the administrative burdens that often contribute to burnout among its members, Dr. Stroink said.

A Model for Suicide Prevention

Dr. Harrop emphasized that suicide is preventable and that there is “some good news.” Turning to another high-risk profession, he noted that the US Air Force was able to reduce its suicide rate by 42.7% between 1994 and 1998 by doing three basic things.

The agency established a central surveillance database, restructured prevention services, and, more importantly, began conducting annual suicide prevention and awareness training, using gatekeepers to channel at-risk personnel to appropriate agencies and performing mental health questionnaires at enrollment and annually.

Similarly, education, screening, and access to mental health treatment are core recommendations for a national response to depression and suicide in physician trainees, said Dr. Harrop, who noted that his own hospital has started using the Patient Health Questionnaire 9-item for its staff.

Asked by this news organization how much progress has been made since The Sick Physician report, Dr. Harrop said, “we are probably doing worse” in terms of the number of physician suicides, but “on a positive note, we are better with resources and acknowledgment that a problem exists.”

He noted that the AANS, which has published a physician burnout series on its Neurosurgery Blog, has shown great interest in this topic and is working to spread the word to help neurosurgeons. “My simple talk has led to me being approached by numerous people and healthcare organizations on how to further focus resources and prevention of this problem.”

Asked the one thing he would tell his friend, Michael Weinstein, a fellow surgeon, or trainee who’s struggling, Dr. Harrop said, “I am here for you, and we will get over these temporary problems, which are not significant in the big picture of what you mean to the world.”

Dr. Harrop reported serving as an adviser for Ethicon and Spiderwort.

A version of this article appeared on Medscape.com.

For those outside the medical profession, it took a global pandemic to finally understand how pervasive distress and suicide are among medical professionals, particularly surgeons.

For James Harrop, MD, it was made real years earlier by a colleague he’d trained alongside and worked with for decades — “one of the best surgeons I’ve ever seen” who, one day, just wasn’t there.

Lost in his own work, it wasn’t until Dr. Harrop, a professor of neurological and orthopedic surgery at Thomas Jefferson University, Philadelphia, read an article in The New England Journal of Medicine and realized his friend Michael Weinstein, MD, MPH, had been profoundly depressed for years and was hospitalized for his own safety.

Dr. Weinstein recovered and later gave grand rounds at Thomas Jefferson University, where he is an associate professor of surgery in the Acute Care Surgery Division. But the story stuck with Dr. Harrop.

“I said to Mike afterward, I’ve known you for 20 years and, retrospectively, going back, I never saw a single sign that you were depressed, sad, or had any issues, and he said to me ‘that’s because I did everything I could to make sure no one knew I had a problem,’ ” Dr. Harrop said during a talk on physician suicide on May 4 at the American Association of Neurological Surgeons (AANS) 2024 Annual Meeting.

“And that scared me because we need to help these people, we need to identify who they are.”

Surgeons at Greater Risk

Studies have reported that suicide and suicidal ideation are nearly twice as common among physicians, compared with among the general population. Among 9175 physicians surveyed in the 2023 Medscape Physician Suicide Report, 9% had considered suicide, and 1% had attempted it. The average for US adults is 4.9% and 0.5%, respectively.

Surgeons are at particularly high risk. A 2011 survey of 7905 US surgeons found that 1 in 16 (6.3%) had considered suicide in the previous year. A post-pandemic survey of more than 600 surgeons and surgical trainees reported that one in seven had suicidal ideation.

It’s often estimated that between 300 and 400 physicians die by suicide each year in the United States, but exact numbers are not known. Recent updated estimates from the National Violent Death Reporting System put the number at 119 physician suicides annually.

Notably, that’s no better than data reported more than 50 years ago in the landmark policy paper The Sick Physician: Impairment by Psychiatric Disorders, Including Alcoholism and Drug Dependence. It sounded the alarm on poor mental health in physicians and reported that 100 doctors died by suicide annually — the equivalent of the average medical school graduating class at the time.

“If I take my med school class and double it, that’s how many physicians die each year,” Dr. Harrop said. “And here’s the bad news, it starts in medical school.”

Research shows higher rates of depression and suicidal ideation in medical students and residents than in other graduates, with rates varying by stage of training, he noted.

In a multischool study, 12% of medical students and residents had probable major depression, 9.2% mild/moderate depression, and suicidal ideation jumped from 6.6% in the first year of medical school to 9.4% in year 4.

A recent AANS survey of 346 neurosurgery residents revealed 67% had burnout, and 41% seriously considered quitting. Burnout rose to a high of 76% in the second year and decreased to 49% and 54% in years 3 and 4, respectively.

Inadequate operating room exposure, hostile faculty, and stressors outside work were tied to burnout, whereas mentorship was linked to a threefold lower likelihood of burnout.

Notably, a 2019 study conservatively estimated that the annual cost of burnout-related physician turnover and reduced clinical hours was $4.6 billion nationally and $7600 per employed physician for an organization.

“We need to be kinder to each other, to look out for each other, and to talk to each other,” Dr. Harrop told conference attendees.

‘Death by a 1000 Cuts’

A host of factors are associated with physician suicide including long work hours, delayed gratification, difficulty balancing work and home life, changing healthcare systems, lawsuits, and the unique ability to prescribe medications, said Dr. Harrop.

“In my life, I think of it as death by 1000 cuts. Every day I come in, you’ve got another person attacking you,” he said, referencing Death by 1000 Cuts: Medscape National Physician Burnout & Suicide Report 2021.

Dr. Harrop told this news organization that talking with numerous experts in this field has made him appreciate that anyone is at a risk for suicide.

“The problem is an overload of external resources crushing your existence to the point that you become paralyzed and make the irrational thought that the best solution is to end your life,” he said.

Ann Stroink, MD, immediate past president of the AANS, said in an interview that one potential trigger for burnout is the current shortage of neurosurgeons in the United States, which has led to increased workloads and potential sleep deprivation among existing neurosurgeons.

“To address this critical issue, we’ve been advocating through legislative channels for additional Medicare[-funded] slots” to train more neurosurgeons, she said. “It’s imperative that we take proactive steps to ensure that our healthcare system can sustainably meet the needs of patients, while also supporting the well-being of our neurosurgical professionals.”

The AANS is also advocating for decreased regulatory burdens associated with Medicare and insurance coverage, such as prior authorization, to help alleviate the administrative burdens that often contribute to burnout among its members, Dr. Stroink said.

A Model for Suicide Prevention

Dr. Harrop emphasized that suicide is preventable and that there is “some good news.” Turning to another high-risk profession, he noted that the US Air Force was able to reduce its suicide rate by 42.7% between 1994 and 1998 by doing three basic things.

The agency established a central surveillance database, restructured prevention services, and, more importantly, began conducting annual suicide prevention and awareness training, using gatekeepers to channel at-risk personnel to appropriate agencies and performing mental health questionnaires at enrollment and annually.

Similarly, education, screening, and access to mental health treatment are core recommendations for a national response to depression and suicide in physician trainees, said Dr. Harrop, who noted that his own hospital has started using the Patient Health Questionnaire 9-item for its staff.

Asked by this news organization how much progress has been made since The Sick Physician report, Dr. Harrop said, “we are probably doing worse” in terms of the number of physician suicides, but “on a positive note, we are better with resources and acknowledgment that a problem exists.”

He noted that the AANS, which has published a physician burnout series on its Neurosurgery Blog, has shown great interest in this topic and is working to spread the word to help neurosurgeons. “My simple talk has led to me being approached by numerous people and healthcare organizations on how to further focus resources and prevention of this problem.”

Asked the one thing he would tell his friend, Michael Weinstein, a fellow surgeon, or trainee who’s struggling, Dr. Harrop said, “I am here for you, and we will get over these temporary problems, which are not significant in the big picture of what you mean to the world.”

Dr. Harrop reported serving as an adviser for Ethicon and Spiderwort.

A version of this article appeared on Medscape.com.

Meningitis has been highlighted as a novel risk factor for trigeminal neuralgia in a nationwide, propensity-matched study of hospital admissions.

In multivariate analysis, the odds of meningitis were threefold higher in patients admitted with trigeminal neuralgia than in matched controls without trigeminal neuralgia.

This is the first nationwide population-based study of the rare, chronic pain disorder to identify the prevalence of trigeminal neuralgia admissions in the United States and risk factors contributing to trigeminal neuralgia development.

“Our results affirm known associations between trigeminal neuralgia and comorbidities like multiple sclerosis, and they also identify meningitis as a novel risk factor for trigeminal neuralgia,” said investigator Megan Tang, BS, a medical student at the Icahn School of Medicine at Mount Sinai, New York City.

The findings were presented at the American Association of Neurological Surgeons (AANS) 2024 annual meeting.
 

Strong Clinical Risk Factors

Trigeminal neuralgia is a rare pain disorder involving neurovascular compression of the trigeminal nerve. Its etiology and risk factors are poorly understood. Current literature is based on limited datasets and reports inconsistent risk factors across studies.

To better understand the disorder, researchers used International Classification of Diseases (ICD)-9 codes to identify trigeminal neuralgia admissions in the National Inpatient Sample from 2016 to 2019, and then propensity matched them 1:1 to non-trigeminal neuralgia admissions based on demographics, socioeconomic status, and Charlson comorbidity index scores.

Univariate analysis identified 136,345 trigeminal neuralgia admissions or an overall prevalence of 0.096%.

Trigeminal neuralgia admissions had lower morbidity than non-trigeminal neuralgia admissions and a higher prevalence of non-White patients, private insurance, and prolonged length of stay, Ms. Tang said.

Patients admitted for trigeminal neuralgia also had a higher prevalence of several chronic conditions, including hypertension, hyperlipidemia, and osteoarthritis; inflammatory conditions like lupus, meningitis, rheumatoid arthritis, and inflammatory bowel disease; and neurologic conditions including multiple sclerosis, epilepsy, stroke, and neurovascular compression disorders.

In multivariate analysis, investigators identified meningitis as a previously unknown risk factor for trigeminal neuralgia (odds ratio [OR], 3.1; P < .001).

Other strong risk factors were neurovascular compression disorders (OR, 39.82; P < .001) and multiple sclerosis (OR, 12.41; P < .001). Non-White race (Black; OR, 1.09; Hispanic; OR, 1.23; Other; OR, 1.24) and use of Medicaid (OR, 1.07) and other insurance (OR, 1.17) were demographic risk factors for trigeminal neuralgia.

“This finding points us toward future work exploring the potential mechanisms of predictors, most notably inflammatory conditions in trigeminal neuralgia development,” Ms. Tang concluded.

She declined to comment further on the findings, noting the investigators are still finalizing the results and interpretation.
 

Ask About Meningitis, Fever

Commenting on the findings, Michael D. Staudt, MD, MSc, University Hospitals Cleveland Medical Center, said that many patients who present with classical trigeminal neuralgia will have a blood vessel on MRI that is pressing on the trigeminal nerve.

“Obviously, the nerve is bathed in cerebrospinal fluid. So, if there’s an inflammatory marker, inflammation, or infection that could be injuring the nerve in a way that we don’t yet understand, that could be something that could cause trigeminal neuralgia without having to see a blood vessel,” said Dr. Staudt, who was not involved in the study. “It makes sense, theoretically. Something that’s inflammatory, something that’s irritating, that’s novel.”

Currently, predictive markers include clinical history, response to classical medications such as carbamazepine, and MRI findings, Dr. Staudt noted.

“Someone shows up with symptoms and MRI, and it’s basically do they have a blood vessel or not,” he said. “Treatments are generally within the same categories, but we don’t think it’s the same sort of success rate as seeing a blood vessel.”

Further research is needed, but, in the meantime, Dr. Staudt said, “We can ask patients who show up with facial pain if they’ve ever had meningitis or some sort of fever that preceded their onset of pain.”

The study had no specific funding. Ms. Tang and coauthor Jack Y. Zhang, MS, reported no relevant financial disclosures. Dr. Staudt reported serving as a consultant for Abbott and as a scientific adviser and consultant for Boston Scientific.

A version of this article appeared on Medscape.com.

Meningitis has been highlighted as a novel risk factor for trigeminal neuralgia in a nationwide, propensity-matched study of hospital admissions.

In multivariate analysis, the odds of meningitis were threefold higher in patients admitted with trigeminal neuralgia than in matched controls without trigeminal neuralgia.

This is the first nationwide population-based study of the rare, chronic pain disorder to identify the prevalence of trigeminal neuralgia admissions in the United States and risk factors contributing to trigeminal neuralgia development.

“Our results affirm known associations between trigeminal neuralgia and comorbidities like multiple sclerosis, and they also identify meningitis as a novel risk factor for trigeminal neuralgia,” said investigator Megan Tang, BS, a medical student at the Icahn School of Medicine at Mount Sinai, New York City.

The findings were presented at the American Association of Neurological Surgeons (AANS) 2024 annual meeting.
 

Strong Clinical Risk Factors

Trigeminal neuralgia is a rare pain disorder involving neurovascular compression of the trigeminal nerve. Its etiology and risk factors are poorly understood. Current literature is based on limited datasets and reports inconsistent risk factors across studies.

To better understand the disorder, researchers used International Classification of Diseases (ICD)-9 codes to identify trigeminal neuralgia admissions in the National Inpatient Sample from 2016 to 2019, and then propensity matched them 1:1 to non-trigeminal neuralgia admissions based on demographics, socioeconomic status, and Charlson comorbidity index scores.

Univariate analysis identified 136,345 trigeminal neuralgia admissions or an overall prevalence of 0.096%.

Trigeminal neuralgia admissions had lower morbidity than non-trigeminal neuralgia admissions and a higher prevalence of non-White patients, private insurance, and prolonged length of stay, Ms. Tang said.

Patients admitted for trigeminal neuralgia also had a higher prevalence of several chronic conditions, including hypertension, hyperlipidemia, and osteoarthritis; inflammatory conditions like lupus, meningitis, rheumatoid arthritis, and inflammatory bowel disease; and neurologic conditions including multiple sclerosis, epilepsy, stroke, and neurovascular compression disorders.

In multivariate analysis, investigators identified meningitis as a previously unknown risk factor for trigeminal neuralgia (odds ratio [OR], 3.1; P < .001).

Other strong risk factors were neurovascular compression disorders (OR, 39.82; P < .001) and multiple sclerosis (OR, 12.41; P < .001). Non-White race (Black; OR, 1.09; Hispanic; OR, 1.23; Other; OR, 1.24) and use of Medicaid (OR, 1.07) and other insurance (OR, 1.17) were demographic risk factors for trigeminal neuralgia.

“This finding points us toward future work exploring the potential mechanisms of predictors, most notably inflammatory conditions in trigeminal neuralgia development,” Ms. Tang concluded.

She declined to comment further on the findings, noting the investigators are still finalizing the results and interpretation.
 

Ask About Meningitis, Fever

Commenting on the findings, Michael D. Staudt, MD, MSc, University Hospitals Cleveland Medical Center, said that many patients who present with classical trigeminal neuralgia will have a blood vessel on MRI that is pressing on the trigeminal nerve.

“Obviously, the nerve is bathed in cerebrospinal fluid. So, if there’s an inflammatory marker, inflammation, or infection that could be injuring the nerve in a way that we don’t yet understand, that could be something that could cause trigeminal neuralgia without having to see a blood vessel,” said Dr. Staudt, who was not involved in the study. “It makes sense, theoretically. Something that’s inflammatory, something that’s irritating, that’s novel.”

Currently, predictive markers include clinical history, response to classical medications such as carbamazepine, and MRI findings, Dr. Staudt noted.

“Someone shows up with symptoms and MRI, and it’s basically do they have a blood vessel or not,” he said. “Treatments are generally within the same categories, but we don’t think it’s the same sort of success rate as seeing a blood vessel.”

Further research is needed, but, in the meantime, Dr. Staudt said, “We can ask patients who show up with facial pain if they’ve ever had meningitis or some sort of fever that preceded their onset of pain.”

The study had no specific funding. Ms. Tang and coauthor Jack Y. Zhang, MS, reported no relevant financial disclosures. Dr. Staudt reported serving as a consultant for Abbott and as a scientific adviser and consultant for Boston Scientific.

A version of this article appeared on Medscape.com.

Meningitis has been highlighted as a novel risk factor for trigeminal neuralgia in a nationwide, propensity-matched study of hospital admissions.

In multivariate analysis, the odds of meningitis were threefold higher in patients admitted with trigeminal neuralgia than in matched controls without trigeminal neuralgia.

This is the first nationwide population-based study of the rare, chronic pain disorder to identify the prevalence of trigeminal neuralgia admissions in the United States and risk factors contributing to trigeminal neuralgia development.

“Our results affirm known associations between trigeminal neuralgia and comorbidities like multiple sclerosis, and they also identify meningitis as a novel risk factor for trigeminal neuralgia,” said investigator Megan Tang, BS, a medical student at the Icahn School of Medicine at Mount Sinai, New York City.

The findings were presented at the American Association of Neurological Surgeons (AANS) 2024 annual meeting.
 

Strong Clinical Risk Factors

Trigeminal neuralgia is a rare pain disorder involving neurovascular compression of the trigeminal nerve. Its etiology and risk factors are poorly understood. Current literature is based on limited datasets and reports inconsistent risk factors across studies.

To better understand the disorder, researchers used International Classification of Diseases (ICD)-9 codes to identify trigeminal neuralgia admissions in the National Inpatient Sample from 2016 to 2019, and then propensity matched them 1:1 to non-trigeminal neuralgia admissions based on demographics, socioeconomic status, and Charlson comorbidity index scores.

Univariate analysis identified 136,345 trigeminal neuralgia admissions or an overall prevalence of 0.096%.

Trigeminal neuralgia admissions had lower morbidity than non-trigeminal neuralgia admissions and a higher prevalence of non-White patients, private insurance, and prolonged length of stay, Ms. Tang said.

Patients admitted for trigeminal neuralgia also had a higher prevalence of several chronic conditions, including hypertension, hyperlipidemia, and osteoarthritis; inflammatory conditions like lupus, meningitis, rheumatoid arthritis, and inflammatory bowel disease; and neurologic conditions including multiple sclerosis, epilepsy, stroke, and neurovascular compression disorders.

In multivariate analysis, investigators identified meningitis as a previously unknown risk factor for trigeminal neuralgia (odds ratio [OR], 3.1; P < .001).

Other strong risk factors were neurovascular compression disorders (OR, 39.82; P < .001) and multiple sclerosis (OR, 12.41; P < .001). Non-White race (Black; OR, 1.09; Hispanic; OR, 1.23; Other; OR, 1.24) and use of Medicaid (OR, 1.07) and other insurance (OR, 1.17) were demographic risk factors for trigeminal neuralgia.

“This finding points us toward future work exploring the potential mechanisms of predictors, most notably inflammatory conditions in trigeminal neuralgia development,” Ms. Tang concluded.

She declined to comment further on the findings, noting the investigators are still finalizing the results and interpretation.
 

Ask About Meningitis, Fever

Commenting on the findings, Michael D. Staudt, MD, MSc, University Hospitals Cleveland Medical Center, said that many patients who present with classical trigeminal neuralgia will have a blood vessel on MRI that is pressing on the trigeminal nerve.

“Obviously, the nerve is bathed in cerebrospinal fluid. So, if there’s an inflammatory marker, inflammation, or infection that could be injuring the nerve in a way that we don’t yet understand, that could be something that could cause trigeminal neuralgia without having to see a blood vessel,” said Dr. Staudt, who was not involved in the study. “It makes sense, theoretically. Something that’s inflammatory, something that’s irritating, that’s novel.”

Currently, predictive markers include clinical history, response to classical medications such as carbamazepine, and MRI findings, Dr. Staudt noted.

“Someone shows up with symptoms and MRI, and it’s basically do they have a blood vessel or not,” he said. “Treatments are generally within the same categories, but we don’t think it’s the same sort of success rate as seeing a blood vessel.”

Further research is needed, but, in the meantime, Dr. Staudt said, “We can ask patients who show up with facial pain if they’ve ever had meningitis or some sort of fever that preceded their onset of pain.”

The study had no specific funding. Ms. Tang and coauthor Jack Y. Zhang, MS, reported no relevant financial disclosures. Dr. Staudt reported serving as a consultant for Abbott and as a scientific adviser and consultant for Boston Scientific.

A version of this article appeared on Medscape.com.

CHICAGO — The diabetes/weight loss drug semaglutide is associated with a significantly greater risk for repeat operations in patients with diabetes who require lumbar surgery, a new study suggests.

The risk for additional surgeries was even higher among patients taking the popular weight loss and diabetes drug for longer periods of time.

Investigators say the study provides the first evidence on the impact of semaglutide on spine surgery. 

“The expectation was [that] we would see patients doing better after surgery, less wound complications, and other things, and in our diabetic patients we did not see that and saw increased odds of needing additional surgeries,” investigator Syed I. Khalid, MD, neurosurgery resident at University of Illinois Chicago, told this news organization.

The findings were presented on May 3 at the American Association of Neurological Surgeons (AANS) 2024 Annual Meeting.
 

Additional Surgery at Year 1

The new study used the all-payer Mariner database to identify patients aged 18-74 years with type 2 diabetes who underwent elective one- to three-level transforaminal lumbar interbody fusions (TLIFs) between January 2018 and October 2022. 

Patients were matched in a 3:1 ratio for age, sex, hypertension, obesity, smoking history, chronic kidney disease, osteoporosis, insulin use, and spinal fusion level, resulting in 447 patients with semaglutide use and 1334 with no semaglutide use. More than half (56%) were female, 62% used insulin, and 81% underwent single-level TLIF.

Total medical complications were higher in the semaglutide group, at 13.4%, compared with 7.7% in the no-semaglutide group (odds ratio [OR], 1.85). This was driven by higher rates of urinary tract infection (6.7% vs 2.5%) and acute kidney injury (6.3% vs 3.9%), two complications observed with semaglutide in other studies, Dr. Khalid said.

Total surgical complications, however, were lower in patients taking semaglutide, at 3.8% vs 5.2% in those who did not (OR, 0.73). 

Patients taking semaglutide vs those who were not using semaglutide had fewer wound healing complications (5 vs 31), hematoma (1 vs 9), surgical-site infections (12 vs 44), and cerebrospinal fluid leaks (2 vs 3).

Still, people taking semaglutide were nearly 12 times more likely to have an additional lumbar surgery at 1 year than did those who did not use the drug (27.3% vs 3.1%; OR, 11.79; 95% CI, 8.17-17.33).

Kaplan-Meier plots revealed a striking divergence of these populations when semaglutide exposure for more than or less than 9 months was examined (log-rank P < .0001).

Currently under review for publication, this study provides the first evidence on the impact of semaglutide on spine surgery, Dr. Khalid said. A second follow-up paper, also under review, looked only at patients with patients morbidly obesity without diabetes who had taken semaglutide for weight loss. 

“In nondiabetic, morbidly obese patients undergoing spine surgery, we see a similar trend,” Dr. Khalid said.
 

Sarcopenia the Cause?

The additional surgeries were primarily extensions of constructs, with additional surgery and fusion at more levels, Dr. Khalid noted. 

“The idea is that it could be the fact there is sarcopenia or muscle loss that’s taking place in conjunction with fat loss that’s causing that to happen,” Dr. Khalid said.

The mechanism remains speculative, but evidence from other areas examining frailty states has shown that those patients have weaker bones, sarcopenia, and worse outcomes with spine surgery, he noted. 

The investigators plan to use artificial intelligence to evaluate changes in body composition after semaglutide use in patients who underwent imaging prior to spine surgery or even before back pain occurred. Because these medications are uptitrated over time, follow-up studies will also look at whether this change takes place with a certain dose, Dr. Khalid added. 

On the basis of the current analysis of generic semaglutide alone, it’s not possible to say whether the use of other glucagon-like peptide 1 (GLP-1) receptor agonists will result in similar findings, but “the odds of a class effect are high,” Dr. Khalid said. 

Commenting on the findings, Walavan Sivakumar, MD, director of neurosurgery at Pacific Neuroscience Institute, Los Angeles, noted that the timing of surgery is already an issue for patients taking semaglutide and other GLP-1 receptor agonists following recent guidance from the American Society of Anesthesiologists that suggests stopping GLP-1 receptor agonists prior to elective surgery to reduce the risk for complications associated with anesthesia.

“It’s an incredibly topical point and seems to be something showing up on a daily basis for clinicians all throughout neurosurgery,” Dr. Sivakumar said. “It’s thought-provoking and a great first start.” 

Dr. Sivakumar also observed that frailty is a hot topic in all of neurosurgery. “That’s a major, major point that’s showing an impact on all surgical outcomes and it’s being heavily studied in the neurosurgical subsets right now. So that’s definitely a possible correlating factor.”

Dr. Khalid reported no financial relationships. Dr. Sivakumar reported serving as a consultant for Stryker. 
 

A version of this article appeared on Medscape.com.

CHICAGO — The diabetes/weight loss drug semaglutide is associated with a significantly greater risk for repeat operations in patients with diabetes who require lumbar surgery, a new study suggests.

The risk for additional surgeries was even higher among patients taking the popular weight loss and diabetes drug for longer periods of time.

Investigators say the study provides the first evidence on the impact of semaglutide on spine surgery. 

“The expectation was [that] we would see patients doing better after surgery, less wound complications, and other things, and in our diabetic patients we did not see that and saw increased odds of needing additional surgeries,” investigator Syed I. Khalid, MD, neurosurgery resident at University of Illinois Chicago, told this news organization.

The findings were presented on May 3 at the American Association of Neurological Surgeons (AANS) 2024 Annual Meeting.
 

Additional Surgery at Year 1

The new study used the all-payer Mariner database to identify patients aged 18-74 years with type 2 diabetes who underwent elective one- to three-level transforaminal lumbar interbody fusions (TLIFs) between January 2018 and October 2022. 

Patients were matched in a 3:1 ratio for age, sex, hypertension, obesity, smoking history, chronic kidney disease, osteoporosis, insulin use, and spinal fusion level, resulting in 447 patients with semaglutide use and 1334 with no semaglutide use. More than half (56%) were female, 62% used insulin, and 81% underwent single-level TLIF.

Total medical complications were higher in the semaglutide group, at 13.4%, compared with 7.7% in the no-semaglutide group (odds ratio [OR], 1.85). This was driven by higher rates of urinary tract infection (6.7% vs 2.5%) and acute kidney injury (6.3% vs 3.9%), two complications observed with semaglutide in other studies, Dr. Khalid said.

Total surgical complications, however, were lower in patients taking semaglutide, at 3.8% vs 5.2% in those who did not (OR, 0.73). 

Patients taking semaglutide vs those who were not using semaglutide had fewer wound healing complications (5 vs 31), hematoma (1 vs 9), surgical-site infections (12 vs 44), and cerebrospinal fluid leaks (2 vs 3).

Still, people taking semaglutide were nearly 12 times more likely to have an additional lumbar surgery at 1 year than did those who did not use the drug (27.3% vs 3.1%; OR, 11.79; 95% CI, 8.17-17.33).

Kaplan-Meier plots revealed a striking divergence of these populations when semaglutide exposure for more than or less than 9 months was examined (log-rank P < .0001).

Currently under review for publication, this study provides the first evidence on the impact of semaglutide on spine surgery, Dr. Khalid said. A second follow-up paper, also under review, looked only at patients with patients morbidly obesity without diabetes who had taken semaglutide for weight loss. 

“In nondiabetic, morbidly obese patients undergoing spine surgery, we see a similar trend,” Dr. Khalid said.
 

Sarcopenia the Cause?

The additional surgeries were primarily extensions of constructs, with additional surgery and fusion at more levels, Dr. Khalid noted. 

“The idea is that it could be the fact there is sarcopenia or muscle loss that’s taking place in conjunction with fat loss that’s causing that to happen,” Dr. Khalid said.

The mechanism remains speculative, but evidence from other areas examining frailty states has shown that those patients have weaker bones, sarcopenia, and worse outcomes with spine surgery, he noted. 

The investigators plan to use artificial intelligence to evaluate changes in body composition after semaglutide use in patients who underwent imaging prior to spine surgery or even before back pain occurred. Because these medications are uptitrated over time, follow-up studies will also look at whether this change takes place with a certain dose, Dr. Khalid added. 

On the basis of the current analysis of generic semaglutide alone, it’s not possible to say whether the use of other glucagon-like peptide 1 (GLP-1) receptor agonists will result in similar findings, but “the odds of a class effect are high,” Dr. Khalid said. 

Commenting on the findings, Walavan Sivakumar, MD, director of neurosurgery at Pacific Neuroscience Institute, Los Angeles, noted that the timing of surgery is already an issue for patients taking semaglutide and other GLP-1 receptor agonists following recent guidance from the American Society of Anesthesiologists that suggests stopping GLP-1 receptor agonists prior to elective surgery to reduce the risk for complications associated with anesthesia.

“It’s an incredibly topical point and seems to be something showing up on a daily basis for clinicians all throughout neurosurgery,” Dr. Sivakumar said. “It’s thought-provoking and a great first start.” 

Dr. Sivakumar also observed that frailty is a hot topic in all of neurosurgery. “That’s a major, major point that’s showing an impact on all surgical outcomes and it’s being heavily studied in the neurosurgical subsets right now. So that’s definitely a possible correlating factor.”

Dr. Khalid reported no financial relationships. Dr. Sivakumar reported serving as a consultant for Stryker. 
 

A version of this article appeared on Medscape.com.

CHICAGO — The diabetes/weight loss drug semaglutide is associated with a significantly greater risk for repeat operations in patients with diabetes who require lumbar surgery, a new study suggests.

The risk for additional surgeries was even higher among patients taking the popular weight loss and diabetes drug for longer periods of time.

Investigators say the study provides the first evidence on the impact of semaglutide on spine surgery. 

“The expectation was [that] we would see patients doing better after surgery, less wound complications, and other things, and in our diabetic patients we did not see that and saw increased odds of needing additional surgeries,” investigator Syed I. Khalid, MD, neurosurgery resident at University of Illinois Chicago, told this news organization.

The findings were presented on May 3 at the American Association of Neurological Surgeons (AANS) 2024 Annual Meeting.
 

Additional Surgery at Year 1

The new study used the all-payer Mariner database to identify patients aged 18-74 years with type 2 diabetes who underwent elective one- to three-level transforaminal lumbar interbody fusions (TLIFs) between January 2018 and October 2022. 

Patients were matched in a 3:1 ratio for age, sex, hypertension, obesity, smoking history, chronic kidney disease, osteoporosis, insulin use, and spinal fusion level, resulting in 447 patients with semaglutide use and 1334 with no semaglutide use. More than half (56%) were female, 62% used insulin, and 81% underwent single-level TLIF.

Total medical complications were higher in the semaglutide group, at 13.4%, compared with 7.7% in the no-semaglutide group (odds ratio [OR], 1.85). This was driven by higher rates of urinary tract infection (6.7% vs 2.5%) and acute kidney injury (6.3% vs 3.9%), two complications observed with semaglutide in other studies, Dr. Khalid said.

Total surgical complications, however, were lower in patients taking semaglutide, at 3.8% vs 5.2% in those who did not (OR, 0.73). 

Patients taking semaglutide vs those who were not using semaglutide had fewer wound healing complications (5 vs 31), hematoma (1 vs 9), surgical-site infections (12 vs 44), and cerebrospinal fluid leaks (2 vs 3).

Still, people taking semaglutide were nearly 12 times more likely to have an additional lumbar surgery at 1 year than did those who did not use the drug (27.3% vs 3.1%; OR, 11.79; 95% CI, 8.17-17.33).

Kaplan-Meier plots revealed a striking divergence of these populations when semaglutide exposure for more than or less than 9 months was examined (log-rank P < .0001).

Currently under review for publication, this study provides the first evidence on the impact of semaglutide on spine surgery, Dr. Khalid said. A second follow-up paper, also under review, looked only at patients with patients morbidly obesity without diabetes who had taken semaglutide for weight loss. 

“In nondiabetic, morbidly obese patients undergoing spine surgery, we see a similar trend,” Dr. Khalid said.
 

Sarcopenia the Cause?

The additional surgeries were primarily extensions of constructs, with additional surgery and fusion at more levels, Dr. Khalid noted. 

“The idea is that it could be the fact there is sarcopenia or muscle loss that’s taking place in conjunction with fat loss that’s causing that to happen,” Dr. Khalid said.

The mechanism remains speculative, but evidence from other areas examining frailty states has shown that those patients have weaker bones, sarcopenia, and worse outcomes with spine surgery, he noted. 

The investigators plan to use artificial intelligence to evaluate changes in body composition after semaglutide use in patients who underwent imaging prior to spine surgery or even before back pain occurred. Because these medications are uptitrated over time, follow-up studies will also look at whether this change takes place with a certain dose, Dr. Khalid added. 

On the basis of the current analysis of generic semaglutide alone, it’s not possible to say whether the use of other glucagon-like peptide 1 (GLP-1) receptor agonists will result in similar findings, but “the odds of a class effect are high,” Dr. Khalid said. 

Commenting on the findings, Walavan Sivakumar, MD, director of neurosurgery at Pacific Neuroscience Institute, Los Angeles, noted that the timing of surgery is already an issue for patients taking semaglutide and other GLP-1 receptor agonists following recent guidance from the American Society of Anesthesiologists that suggests stopping GLP-1 receptor agonists prior to elective surgery to reduce the risk for complications associated with anesthesia.

“It’s an incredibly topical point and seems to be something showing up on a daily basis for clinicians all throughout neurosurgery,” Dr. Sivakumar said. “It’s thought-provoking and a great first start.” 

Dr. Sivakumar also observed that frailty is a hot topic in all of neurosurgery. “That’s a major, major point that’s showing an impact on all surgical outcomes and it’s being heavily studied in the neurosurgical subsets right now. So that’s definitely a possible correlating factor.”

Dr. Khalid reported no financial relationships. Dr. Sivakumar reported serving as a consultant for Stryker. 
 

A version of this article appeared on Medscape.com.

Readjudication of mortality data from the FOURIER trial suggests a higher risk for cardiovascular death with evolocumab (Repatha) among patients with established atherosclerotic cardiovascular disease than originally reported for the first-in-class PCSK9 (proprotein convertase subtilisin/kexin type 9) inhibitor.

The Restoring Invisible and Abandoned Trials (RIAT) investigators launched this review in 2018, citing “significant inconsistencies and misreporting” between information in death narratives in the trial’s clinical study report (CSR) and the 2017 New England Journal of Medicine publication of the primary trial results.

“After readjudication, deaths of cardiac origin were numerically higher in the evolocumab group than in the placebo group in the FOURIER trial, suggesting possible cardiac harm,” the researchers conclude in the new report published online in BMJ Open. “At the time the trial was terminated early, a non-significantly higher risk of cardiovascular mortality was observed with evolocumab, which was numerically greater in our adjudication.

“Our findings indicate that complete restoration of all clinical outcomes from the FOURIER trial is required,” they wrote. “Meanwhile, clinicians should be skeptical about benefits vs harms of prescribing evolocumab for patients with established atherosclerotic cardiovascular disease.”

Asked to comment on the reanalysis, FOURIER lead investigator Marc Sabatine, MD, MPH, a professor of medicine at Harvard Medical School and the Lewis Dexter distinguished chair in cardiovascular medicine at Brigham and Women’s Hospital, both in Boston, said: “It’s hard to call this science. I think it lacks all scientific rigor and is fundamentally flawed and, because their process was flawed, it has led them to erroneous conclusions.”

Reached for comment, Sanjay Kaul, MD, a cardiologist and professor of medicine at Cedars-Sinai Medical Center in Los Angeles, who was not involved with either study, said: “If I were to describe this in one sentence, I would say much ado about nothing. A tempest in a teapot.”
 

Evaluating hard outcomes

The Food and Drug Administration approved evolocumab in 2015 for lowering LDL cholesterol levels, but without results from any trial evaluating hard outcomes.

As previously reported in 2017, FOURIER showed that adding evolocumab to high-intensity statins slashed LDL cholesterol by 59% and was associated with a 15% reduction in the primary composite cardiovascular events endpoint, compared with placebo, but numerically more all-cause and CV mortality.

The NEJM data analysis reported the risk for cardiovascular mortality was 5% (hazard ratio, 1.05; 95% confidence interval, 0.88-1.25), whereas the new review found a still nonsignificant 20% relative risk (R95% CI, 0.95-1.51).

Cardiac deaths were also numerically higher in the evolocumab group (113 vs. 88), corresponding to a 28% higher relative risk (95% CI, 0.97-1.69). Vascular deaths were similar at 37 in both groups (RR, 1.00; 95% CI, 0.63-1.58).

For 360 of the 870 deaths, the cause of death adjudicated by the FOURIER clinical events committee differs from that identified by the local clinical investigators in the CSR death narrative, the authors said.

The RIAT investigators found 11 more deaths from myocardial infarction in the evolocumab group (36 vs. 25 in NEJM) and 3 fewer deaths in the placebo group (27 vs. 30). In addition, their review indicated that deaths as a result of cardiac failure in the evolocumab group were almost double those in the placebo group, at 31 versus 16, respectively.
 

An ‘obvious disconnect’

Thomas L. Perry, MD, a coauthor of the BMJ Open paper and a general internist in the department of anesthesiology, pharmacology, and therapeutics at the University of British Columbia, Vancouver, said in an interview that the team repeatedly sought information from the FOURIER investigators but never received a response.

They petitioned and received the FOURIER CSR from the European Medicines Agency and Health Canada and made a similar request with the FDA but were told in October 2019 it would take up to 7 years to release the information. Case report forms were also requested but not received from all three agencies.

Dr. Perry noted that no autopsies were performed in the trial, a claim Dr. Sabatine rejected, and that their review of the death narratives in the CSR found 91 deaths classified by the local investigator as “undetermined” but subsequently adjudicated by the FOURIER clinical events committee as “sudden cardiac” deaths without any documented evidence to support the change.

At his request, Dr. Perry said they included two case examples (figures 1 and 2) in the BMJ Open paper of the “obvious disconnect” in death endpoints. Both of these were identified by the local investigator as a myocardial infarction but later “misreported” according to Dr. Perry, as a sudden cardiac death and noncardiovascular death (trauma), respectively.

“What’s so important about this is not only that it throws into doubt the reliability of what the people at Harvard and elsewhere reported in the New England Journal of Medicine in 2017, but also raises a question about any other large study like this where you rely on supposedly ethical local investigators to run the trial well and to report accurately what happens to people,” Dr. Perry said in an interview.

Although he never prescribed evolocumab after the initial results were published, Dr. Perry said he’s even less convinced of a benefit now. “Basically, I don’t believe that they are telling us the facts. I have no reason to say there’s an element of deliberately misleading us. I think it’s sloppiness, incompetence, laziness.”

Dr. Perry also favors readjudication of the mortality data in the ODYSSEY trial, which showed an all-cause mortality benefit with the PCSK9 inhibitor alirocumab (Praluent).
 

The ‘full picture’

Dr. Sabatine explained that when a patient had a cardiovascular event, including a death, it triggered the collection of a full dossier containing all available source documents, such as discharge summaries, laboratory and imaging data, and autopsy reports, that were independently reviewed by two board certified physicians blinded to treatment. To suggest, as the RIAT investigators have, that no autopsies were performed is “obviously ridiculous and wrong.”

In contrast, he said the new analysis was post hoc, involved unblinded individuals, and relied on serious adverse event narratives, which include a small text box that must be filled out with the site’s initial impression of the case and sent within 24 hours of the event.

Further, when the FOURIER investigators pulled the dossiers for the two more egregious examples cited in the paper, they found that the first patient died in his sleep at home. “The investigator then just said, ‘oh, I assume it’s an MI,’ but there’s no biochemical data, there’s no ECGs, there’s nothing to make the diagnosis of MI. So that’s why that is a sudden cardiac death per the FDA definition,” Dr. Sabatine said.

When the FOURIER investigators reviewed the full dossier for the second case example, they found the patient had slipped in his kitchen at home, sustained a serious head trauma, was brought into the emergency department, and died.

“That’s why we rely on the source documents. That gives the full picture,” he said. The FDA also reviewed the death narratives.

“They comment, ironically, that they were surprised at the inconsistencies between the investigator-reported causes of death and the central events committee-adjudicated ones, making it sound like something nefarious has happened. But that’s the whole point of adjudication, right? That you have a central events committee that reviews and then classifies based on all the data,” Dr. Sabatine said.

Dr. Sabatine said he sees no reason to reevaluate the ODYSSEY mortality data and that the RIAT analysis should not change the overall interpretation of FOURIER.

“I think this is in fact a disservice to the medical community because it’s not real science,” he said. “It’s just sensationalism and sends the wrong message. But I completely stand by the results that we published, as the FDA has.”

Dr. Kaul also thought the new analysis doesn’t materially change the overall benefit–risk balance. He observed that there isn’t a major difference between the reanalysis and the original evaluation. Total mortality was similar and, for cardiovascular deaths, the original NEJM paper lists 251 for evolocumab versus 240 for placebo and the reanalysis lists 150 versus 125, respectively.

Undetermined deaths were 144 for evolocumab and 164 for placebo in the reanalysis. “The conservative approach is to count them as presumed cardiovascular deaths,” Dr. Kaul said. “So, if you do the math and add those undetermined as cardiovascular deaths, we get a total of 294 (150 + 144) versus 289 (125 + 164). That’s five excess deaths with evolocumab.”
 

Open access

Although the RIAT group has called for the public release of the FOURIER data, commercial and legal issues will complicate that process, Steven Grover, MD, professor of medicine and director of the comprehensive health improvement program at McGill University, Montreal, said in an interview. Amgen is back in court over patent protection, filing an appeal with the Supreme Court after losing in the lower courts in a protracted battle, Reuters reported.

“One thing that’s for sure after they’ve raised questions about the results of this study [is that] somebody needs to take a good hard look at the adjudicated results,” said Dr. Grover, who coauthored several iterations of the Canadian Cardiovascular Society dyslipidemia guidelines, including the latest in 2021.

“I think the thing that got so many of us back in 2017 when the study was first published is the mortality data stuck out like a sore thumb,” he said in an interview. “It didn’t have to be statistically significant, but it did need to move in the same direction as the nonfatal coronary events. That’s what we’ve seen happen time and again and, in this case, it was going in the opposite direction.”

Dr. Sabatine said he doesn’t know whether the data will be released but that the FOURIER trialists plan to submit a rebuttal to BMJ Open to the RIAT analysis, which has caused a stir on CardioTwitter. “Now that people live with tweets of information, it necessitates then dispelling the misinformation that comes out. So yes, we will draft a rebuttal pointing out all the flaws in this analysis.”

Dr. Kaul commented that the FDA’s response not to provide the data was “rather curious” and that Dr. Sabatine and colleagues had the opportunity to address the RIAT group’s concerns, but the paper notes they did not even bother to respond. “You can’t be holier than thou in medicine. You have to treat every question with respect and humility and can’t be dismissive. ... He could have nipped the evil in the bud, so to speak.”

The study was funded by a grant from the University of Maryland, Baltimore. The authors, Dr. Kaul, and Dr. Grover reported having no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Readjudication of mortality data from the FOURIER trial suggests a higher risk for cardiovascular death with evolocumab (Repatha) among patients with established atherosclerotic cardiovascular disease than originally reported for the first-in-class PCSK9 (proprotein convertase subtilisin/kexin type 9) inhibitor.

The Restoring Invisible and Abandoned Trials (RIAT) investigators launched this review in 2018, citing “significant inconsistencies and misreporting” between information in death narratives in the trial’s clinical study report (CSR) and the 2017 New England Journal of Medicine publication of the primary trial results.

“After readjudication, deaths of cardiac origin were numerically higher in the evolocumab group than in the placebo group in the FOURIER trial, suggesting possible cardiac harm,” the researchers conclude in the new report published online in BMJ Open. “At the time the trial was terminated early, a non-significantly higher risk of cardiovascular mortality was observed with evolocumab, which was numerically greater in our adjudication.

“Our findings indicate that complete restoration of all clinical outcomes from the FOURIER trial is required,” they wrote. “Meanwhile, clinicians should be skeptical about benefits vs harms of prescribing evolocumab for patients with established atherosclerotic cardiovascular disease.”

Asked to comment on the reanalysis, FOURIER lead investigator Marc Sabatine, MD, MPH, a professor of medicine at Harvard Medical School and the Lewis Dexter distinguished chair in cardiovascular medicine at Brigham and Women’s Hospital, both in Boston, said: “It’s hard to call this science. I think it lacks all scientific rigor and is fundamentally flawed and, because their process was flawed, it has led them to erroneous conclusions.”

Reached for comment, Sanjay Kaul, MD, a cardiologist and professor of medicine at Cedars-Sinai Medical Center in Los Angeles, who was not involved with either study, said: “If I were to describe this in one sentence, I would say much ado about nothing. A tempest in a teapot.”
 

Evaluating hard outcomes

The Food and Drug Administration approved evolocumab in 2015 for lowering LDL cholesterol levels, but without results from any trial evaluating hard outcomes.

As previously reported in 2017, FOURIER showed that adding evolocumab to high-intensity statins slashed LDL cholesterol by 59% and was associated with a 15% reduction in the primary composite cardiovascular events endpoint, compared with placebo, but numerically more all-cause and CV mortality.

The NEJM data analysis reported the risk for cardiovascular mortality was 5% (hazard ratio, 1.05; 95% confidence interval, 0.88-1.25), whereas the new review found a still nonsignificant 20% relative risk (R95% CI, 0.95-1.51).

Cardiac deaths were also numerically higher in the evolocumab group (113 vs. 88), corresponding to a 28% higher relative risk (95% CI, 0.97-1.69). Vascular deaths were similar at 37 in both groups (RR, 1.00; 95% CI, 0.63-1.58).

For 360 of the 870 deaths, the cause of death adjudicated by the FOURIER clinical events committee differs from that identified by the local clinical investigators in the CSR death narrative, the authors said.

The RIAT investigators found 11 more deaths from myocardial infarction in the evolocumab group (36 vs. 25 in NEJM) and 3 fewer deaths in the placebo group (27 vs. 30). In addition, their review indicated that deaths as a result of cardiac failure in the evolocumab group were almost double those in the placebo group, at 31 versus 16, respectively.
 

An ‘obvious disconnect’

Thomas L. Perry, MD, a coauthor of the BMJ Open paper and a general internist in the department of anesthesiology, pharmacology, and therapeutics at the University of British Columbia, Vancouver, said in an interview that the team repeatedly sought information from the FOURIER investigators but never received a response.

They petitioned and received the FOURIER CSR from the European Medicines Agency and Health Canada and made a similar request with the FDA but were told in October 2019 it would take up to 7 years to release the information. Case report forms were also requested but not received from all three agencies.

Dr. Perry noted that no autopsies were performed in the trial, a claim Dr. Sabatine rejected, and that their review of the death narratives in the CSR found 91 deaths classified by the local investigator as “undetermined” but subsequently adjudicated by the FOURIER clinical events committee as “sudden cardiac” deaths without any documented evidence to support the change.

At his request, Dr. Perry said they included two case examples (figures 1 and 2) in the BMJ Open paper of the “obvious disconnect” in death endpoints. Both of these were identified by the local investigator as a myocardial infarction but later “misreported” according to Dr. Perry, as a sudden cardiac death and noncardiovascular death (trauma), respectively.

“What’s so important about this is not only that it throws into doubt the reliability of what the people at Harvard and elsewhere reported in the New England Journal of Medicine in 2017, but also raises a question about any other large study like this where you rely on supposedly ethical local investigators to run the trial well and to report accurately what happens to people,” Dr. Perry said in an interview.

Although he never prescribed evolocumab after the initial results were published, Dr. Perry said he’s even less convinced of a benefit now. “Basically, I don’t believe that they are telling us the facts. I have no reason to say there’s an element of deliberately misleading us. I think it’s sloppiness, incompetence, laziness.”

Dr. Perry also favors readjudication of the mortality data in the ODYSSEY trial, which showed an all-cause mortality benefit with the PCSK9 inhibitor alirocumab (Praluent).
 

The ‘full picture’

Dr. Sabatine explained that when a patient had a cardiovascular event, including a death, it triggered the collection of a full dossier containing all available source documents, such as discharge summaries, laboratory and imaging data, and autopsy reports, that were independently reviewed by two board certified physicians blinded to treatment. To suggest, as the RIAT investigators have, that no autopsies were performed is “obviously ridiculous and wrong.”

In contrast, he said the new analysis was post hoc, involved unblinded individuals, and relied on serious adverse event narratives, which include a small text box that must be filled out with the site’s initial impression of the case and sent within 24 hours of the event.

Further, when the FOURIER investigators pulled the dossiers for the two more egregious examples cited in the paper, they found that the first patient died in his sleep at home. “The investigator then just said, ‘oh, I assume it’s an MI,’ but there’s no biochemical data, there’s no ECGs, there’s nothing to make the diagnosis of MI. So that’s why that is a sudden cardiac death per the FDA definition,” Dr. Sabatine said.

When the FOURIER investigators reviewed the full dossier for the second case example, they found the patient had slipped in his kitchen at home, sustained a serious head trauma, was brought into the emergency department, and died.

“That’s why we rely on the source documents. That gives the full picture,” he said. The FDA also reviewed the death narratives.

“They comment, ironically, that they were surprised at the inconsistencies between the investigator-reported causes of death and the central events committee-adjudicated ones, making it sound like something nefarious has happened. But that’s the whole point of adjudication, right? That you have a central events committee that reviews and then classifies based on all the data,” Dr. Sabatine said.

Dr. Sabatine said he sees no reason to reevaluate the ODYSSEY mortality data and that the RIAT analysis should not change the overall interpretation of FOURIER.

“I think this is in fact a disservice to the medical community because it’s not real science,” he said. “It’s just sensationalism and sends the wrong message. But I completely stand by the results that we published, as the FDA has.”

Dr. Kaul also thought the new analysis doesn’t materially change the overall benefit–risk balance. He observed that there isn’t a major difference between the reanalysis and the original evaluation. Total mortality was similar and, for cardiovascular deaths, the original NEJM paper lists 251 for evolocumab versus 240 for placebo and the reanalysis lists 150 versus 125, respectively.

Undetermined deaths were 144 for evolocumab and 164 for placebo in the reanalysis. “The conservative approach is to count them as presumed cardiovascular deaths,” Dr. Kaul said. “So, if you do the math and add those undetermined as cardiovascular deaths, we get a total of 294 (150 + 144) versus 289 (125 + 164). That’s five excess deaths with evolocumab.”
 

Open access

Although the RIAT group has called for the public release of the FOURIER data, commercial and legal issues will complicate that process, Steven Grover, MD, professor of medicine and director of the comprehensive health improvement program at McGill University, Montreal, said in an interview. Amgen is back in court over patent protection, filing an appeal with the Supreme Court after losing in the lower courts in a protracted battle, Reuters reported.

“One thing that’s for sure after they’ve raised questions about the results of this study [is that] somebody needs to take a good hard look at the adjudicated results,” said Dr. Grover, who coauthored several iterations of the Canadian Cardiovascular Society dyslipidemia guidelines, including the latest in 2021.

“I think the thing that got so many of us back in 2017 when the study was first published is the mortality data stuck out like a sore thumb,” he said in an interview. “It didn’t have to be statistically significant, but it did need to move in the same direction as the nonfatal coronary events. That’s what we’ve seen happen time and again and, in this case, it was going in the opposite direction.”

Dr. Sabatine said he doesn’t know whether the data will be released but that the FOURIER trialists plan to submit a rebuttal to BMJ Open to the RIAT analysis, which has caused a stir on CardioTwitter. “Now that people live with tweets of information, it necessitates then dispelling the misinformation that comes out. So yes, we will draft a rebuttal pointing out all the flaws in this analysis.”

Dr. Kaul commented that the FDA’s response not to provide the data was “rather curious” and that Dr. Sabatine and colleagues had the opportunity to address the RIAT group’s concerns, but the paper notes they did not even bother to respond. “You can’t be holier than thou in medicine. You have to treat every question with respect and humility and can’t be dismissive. ... He could have nipped the evil in the bud, so to speak.”

The study was funded by a grant from the University of Maryland, Baltimore. The authors, Dr. Kaul, and Dr. Grover reported having no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Readjudication of mortality data from the FOURIER trial suggests a higher risk for cardiovascular death with evolocumab (Repatha) among patients with established atherosclerotic cardiovascular disease than originally reported for the first-in-class PCSK9 (proprotein convertase subtilisin/kexin type 9) inhibitor.

The Restoring Invisible and Abandoned Trials (RIAT) investigators launched this review in 2018, citing “significant inconsistencies and misreporting” between information in death narratives in the trial’s clinical study report (CSR) and the 2017 New England Journal of Medicine publication of the primary trial results.

“After readjudication, deaths of cardiac origin were numerically higher in the evolocumab group than in the placebo group in the FOURIER trial, suggesting possible cardiac harm,” the researchers conclude in the new report published online in BMJ Open. “At the time the trial was terminated early, a non-significantly higher risk of cardiovascular mortality was observed with evolocumab, which was numerically greater in our adjudication.

“Our findings indicate that complete restoration of all clinical outcomes from the FOURIER trial is required,” they wrote. “Meanwhile, clinicians should be skeptical about benefits vs harms of prescribing evolocumab for patients with established atherosclerotic cardiovascular disease.”

Asked to comment on the reanalysis, FOURIER lead investigator Marc Sabatine, MD, MPH, a professor of medicine at Harvard Medical School and the Lewis Dexter distinguished chair in cardiovascular medicine at Brigham and Women’s Hospital, both in Boston, said: “It’s hard to call this science. I think it lacks all scientific rigor and is fundamentally flawed and, because their process was flawed, it has led them to erroneous conclusions.”

Reached for comment, Sanjay Kaul, MD, a cardiologist and professor of medicine at Cedars-Sinai Medical Center in Los Angeles, who was not involved with either study, said: “If I were to describe this in one sentence, I would say much ado about nothing. A tempest in a teapot.”
 

Evaluating hard outcomes

The Food and Drug Administration approved evolocumab in 2015 for lowering LDL cholesterol levels, but without results from any trial evaluating hard outcomes.

As previously reported in 2017, FOURIER showed that adding evolocumab to high-intensity statins slashed LDL cholesterol by 59% and was associated with a 15% reduction in the primary composite cardiovascular events endpoint, compared with placebo, but numerically more all-cause and CV mortality.

The NEJM data analysis reported the risk for cardiovascular mortality was 5% (hazard ratio, 1.05; 95% confidence interval, 0.88-1.25), whereas the new review found a still nonsignificant 20% relative risk (R95% CI, 0.95-1.51).

Cardiac deaths were also numerically higher in the evolocumab group (113 vs. 88), corresponding to a 28% higher relative risk (95% CI, 0.97-1.69). Vascular deaths were similar at 37 in both groups (RR, 1.00; 95% CI, 0.63-1.58).

For 360 of the 870 deaths, the cause of death adjudicated by the FOURIER clinical events committee differs from that identified by the local clinical investigators in the CSR death narrative, the authors said.

The RIAT investigators found 11 more deaths from myocardial infarction in the evolocumab group (36 vs. 25 in NEJM) and 3 fewer deaths in the placebo group (27 vs. 30). In addition, their review indicated that deaths as a result of cardiac failure in the evolocumab group were almost double those in the placebo group, at 31 versus 16, respectively.
 

An ‘obvious disconnect’

Thomas L. Perry, MD, a coauthor of the BMJ Open paper and a general internist in the department of anesthesiology, pharmacology, and therapeutics at the University of British Columbia, Vancouver, said in an interview that the team repeatedly sought information from the FOURIER investigators but never received a response.

They petitioned and received the FOURIER CSR from the European Medicines Agency and Health Canada and made a similar request with the FDA but were told in October 2019 it would take up to 7 years to release the information. Case report forms were also requested but not received from all three agencies.

Dr. Perry noted that no autopsies were performed in the trial, a claim Dr. Sabatine rejected, and that their review of the death narratives in the CSR found 91 deaths classified by the local investigator as “undetermined” but subsequently adjudicated by the FOURIER clinical events committee as “sudden cardiac” deaths without any documented evidence to support the change.

At his request, Dr. Perry said they included two case examples (figures 1 and 2) in the BMJ Open paper of the “obvious disconnect” in death endpoints. Both of these were identified by the local investigator as a myocardial infarction but later “misreported” according to Dr. Perry, as a sudden cardiac death and noncardiovascular death (trauma), respectively.

“What’s so important about this is not only that it throws into doubt the reliability of what the people at Harvard and elsewhere reported in the New England Journal of Medicine in 2017, but also raises a question about any other large study like this where you rely on supposedly ethical local investigators to run the trial well and to report accurately what happens to people,” Dr. Perry said in an interview.

Although he never prescribed evolocumab after the initial results were published, Dr. Perry said he’s even less convinced of a benefit now. “Basically, I don’t believe that they are telling us the facts. I have no reason to say there’s an element of deliberately misleading us. I think it’s sloppiness, incompetence, laziness.”

Dr. Perry also favors readjudication of the mortality data in the ODYSSEY trial, which showed an all-cause mortality benefit with the PCSK9 inhibitor alirocumab (Praluent).
 

The ‘full picture’

Dr. Sabatine explained that when a patient had a cardiovascular event, including a death, it triggered the collection of a full dossier containing all available source documents, such as discharge summaries, laboratory and imaging data, and autopsy reports, that were independently reviewed by two board certified physicians blinded to treatment. To suggest, as the RIAT investigators have, that no autopsies were performed is “obviously ridiculous and wrong.”

In contrast, he said the new analysis was post hoc, involved unblinded individuals, and relied on serious adverse event narratives, which include a small text box that must be filled out with the site’s initial impression of the case and sent within 24 hours of the event.

Further, when the FOURIER investigators pulled the dossiers for the two more egregious examples cited in the paper, they found that the first patient died in his sleep at home. “The investigator then just said, ‘oh, I assume it’s an MI,’ but there’s no biochemical data, there’s no ECGs, there’s nothing to make the diagnosis of MI. So that’s why that is a sudden cardiac death per the FDA definition,” Dr. Sabatine said.

When the FOURIER investigators reviewed the full dossier for the second case example, they found the patient had slipped in his kitchen at home, sustained a serious head trauma, was brought into the emergency department, and died.

“That’s why we rely on the source documents. That gives the full picture,” he said. The FDA also reviewed the death narratives.

“They comment, ironically, that they were surprised at the inconsistencies between the investigator-reported causes of death and the central events committee-adjudicated ones, making it sound like something nefarious has happened. But that’s the whole point of adjudication, right? That you have a central events committee that reviews and then classifies based on all the data,” Dr. Sabatine said.

Dr. Sabatine said he sees no reason to reevaluate the ODYSSEY mortality data and that the RIAT analysis should not change the overall interpretation of FOURIER.

“I think this is in fact a disservice to the medical community because it’s not real science,” he said. “It’s just sensationalism and sends the wrong message. But I completely stand by the results that we published, as the FDA has.”

Dr. Kaul also thought the new analysis doesn’t materially change the overall benefit–risk balance. He observed that there isn’t a major difference between the reanalysis and the original evaluation. Total mortality was similar and, for cardiovascular deaths, the original NEJM paper lists 251 for evolocumab versus 240 for placebo and the reanalysis lists 150 versus 125, respectively.

Undetermined deaths were 144 for evolocumab and 164 for placebo in the reanalysis. “The conservative approach is to count them as presumed cardiovascular deaths,” Dr. Kaul said. “So, if you do the math and add those undetermined as cardiovascular deaths, we get a total of 294 (150 + 144) versus 289 (125 + 164). That’s five excess deaths with evolocumab.”
 

Open access

Although the RIAT group has called for the public release of the FOURIER data, commercial and legal issues will complicate that process, Steven Grover, MD, professor of medicine and director of the comprehensive health improvement program at McGill University, Montreal, said in an interview. Amgen is back in court over patent protection, filing an appeal with the Supreme Court after losing in the lower courts in a protracted battle, Reuters reported.

“One thing that’s for sure after they’ve raised questions about the results of this study [is that] somebody needs to take a good hard look at the adjudicated results,” said Dr. Grover, who coauthored several iterations of the Canadian Cardiovascular Society dyslipidemia guidelines, including the latest in 2021.

“I think the thing that got so many of us back in 2017 when the study was first published is the mortality data stuck out like a sore thumb,” he said in an interview. “It didn’t have to be statistically significant, but it did need to move in the same direction as the nonfatal coronary events. That’s what we’ve seen happen time and again and, in this case, it was going in the opposite direction.”

Dr. Sabatine said he doesn’t know whether the data will be released but that the FOURIER trialists plan to submit a rebuttal to BMJ Open to the RIAT analysis, which has caused a stir on CardioTwitter. “Now that people live with tweets of information, it necessitates then dispelling the misinformation that comes out. So yes, we will draft a rebuttal pointing out all the flaws in this analysis.”

Dr. Kaul commented that the FDA’s response not to provide the data was “rather curious” and that Dr. Sabatine and colleagues had the opportunity to address the RIAT group’s concerns, but the paper notes they did not even bother to respond. “You can’t be holier than thou in medicine. You have to treat every question with respect and humility and can’t be dismissive. ... He could have nipped the evil in the bud, so to speak.”

The study was funded by a grant from the University of Maryland, Baltimore. The authors, Dr. Kaul, and Dr. Grover reported having no relevant financial relationships.

A version of this article first appeared on Medscape.com.

The chance of surviving a cardiac arrest varies widely across hospitals in the United States, even when the arrest occurs in the highly controlled setting of a cardiac catheterization lab, a new study indicates.

Among 4,787 patients who arrested in the cath lab at 231 hospitals in the Get With The Guidelines (GWTG) Resuscitation registry, only about one-third survived to discharge. The median risk-adjusted survival rate (RASR) for all hospitals was 36%.

When stratified by RASR tertiles, however, median survival rates were 20%, 36%, and 52% for hospitals in the lowest, middle, and highest tertiles.

The odds of survival differed by 71% in similar patients presenting at two randomly selected hospitals (median odds ratio, 1.71; 95% confidence interval, 1.52-1.87).

“The good news is that cardiac arrests in the cath lab are relatively infrequent, but the bad news is that they still occur and the outcomes are, in general, pretty dismal,” senior author Deepak L. Bhatt, MD, MPH, said in an interview. “So anything that we can do as hospitals [and] health care systems to improve the care of these patients could go a long way.”

Bhatt Deepak L MA 2_web.jpg

Hospital and patient factors

Possible explanations for the wide disparity in survival are the small number of cardiac arrests in the cath lab, the increasing complexity of cases, and the fact that patients are often very sick and may experience a problem during a procedure, or both, Dr. Bhatt suggested. Cath labs also vary in how they handle resuscitative efforts and access to advanced mechanical support devices, such as extracorporeal membrane oxygenation (ECMO).

“It’s not available in every cath lab and, even in hospitals that have it, they may not have a given ECMO circuit available at the exact time the patient’s having a cardiac arrest,” he said. “That’s one example of something that can make, in my opinion, a big difference in whether a patient lives or dies if they’re having a cardiac arrest but may not always be easily deployed.”

When the investigators looked specifically at hospital-level factors, only yearly volume of cardiac arrests in the cath lab was significantly associated with risk-adjusted survival (P < .01), whereas hospital size, rural or urban setting, teaching status, and geographic location were not.

In multivariate adjusted analyses, factors associated with survival to discharge included age (OR, 0.78), Black race (OR, 0.68), respiratory insufficiency (OR, 0.75), and initial cardiac arrest rhythm (OR, 3.32).

The median hospital RASR was 27% higher for ventricular tachycardia or ventricular fibrillation arrests than for arrests with a nonshockable rhythm of asystole and pulseless electrical activity (55% vs. 28%).

Notably, hospitals in the lowest tertile of risk-adjusted survival rates had a higher prevalence of non-White patients, renal and respiratory comorbidity, and arrest with nonshockable rhythm.

“We want to make sure as we’re contemplating whether to resuscitate a patient or how aggressively to resuscitate, that we aren’t letting any of our own biases, whether they have to do with race or potentially sex and gender, interfere with more objective assessments of whether the patient can in fact be saved or not,” Dr. Bhatt said.

Reached for comment, Srihari S. Naidu, MD, who chaired the writing group for the Society for Cardiovascular Angiography and Interventions’ (SCAI) consensus statement on cardiogenic shock and co-authored its document on best practices in the cardiac cath lab, said the findings show that survival in the cath lab is higher than that seen in-hospital. “Still, there’s a lot of room for improvement,” he said.

He was particularly struck by the variability in survival. “Underprivileged individuals, so those who are non-White populations and have respiratory and renal problems, they seem to have a worse survival and that makes sense – patients with comorbidities – but it feeds into the issue of, ‘Are we treating our population similarly in terms of their baseline race and ethnicity as a gap in care?’ ”

Better survival at hospitals with high volumes likely reflects more experience in handling these events, a rapid response and personnel to help with resuscitation, and overall better critical care and cath lab environment, said Dr. Naidu, director of the cardiac cath lab at Westchester Medical Center and professor of medicine at New York Medical College, both in Valhalla, N.Y.

“So that leads into two things,” he said. “One is that probably we should be working on having all high-risk patients go to centers of excellence. So, for example, [for] patients in shock, patients with STEMI, regionalization of care to the high-volume cath labs that are experienced in cardiac arrest and critical care management may be a way to go.”

“Second, if experience counts, can that experience be simulated through drills and simulations in the cath lab?” Dr. Naidu said. “Should all cath labs have drills where we have a cardiac arrest patient, and how would we respond to that? Who’s going to do the compressions? Where’s the mechanical support device? What are the things we need to have a seamless cardiac arrest protocol for arrests during the cath lab?”

Dr. Bhatt and colleagues acknowledge that despite adjustment for many key variables, the study lacked procedural details that may affect survival and information related to resuscitation efforts.

“We really do need to focus more research efforts, potentially more in the way of quality-improvement efforts, to try and help patients get these sorts of patients who are in dire straits to the cath lab but hopefully also through the hospital discharge and back home,” Dr. Bhatt said.

In an editorial accompanying the study, Matthew L. Tomey, MD, Icahn School of Medicine at Mount Sinai, New York, writes that the “findings and limitations of this study together sound a call to action.”

He also signaled the need for more research and for registries and reporting instruments to capture variables particular to in-laboratory cardiac arrest and resuscitation in the cardiac cath lab. “A necessary first step is the development of consensus data elements for supplemental reporting in cases of ILCA,” such as indication for cath lab presentation, timing of arrest relative to procedure, and cause of arrest.

Dr. Bhatt reported numerous relationships with industry. Dr. Naidu and Dr. Tomey report having no relevant financial relationships.

A version of this article first appeared on Medscape.com.

The chance of surviving a cardiac arrest varies widely across hospitals in the United States, even when the arrest occurs in the highly controlled setting of a cardiac catheterization lab, a new study indicates.

Among 4,787 patients who arrested in the cath lab at 231 hospitals in the Get With The Guidelines (GWTG) Resuscitation registry, only about one-third survived to discharge. The median risk-adjusted survival rate (RASR) for all hospitals was 36%.

When stratified by RASR tertiles, however, median survival rates were 20%, 36%, and 52% for hospitals in the lowest, middle, and highest tertiles.

The odds of survival differed by 71% in similar patients presenting at two randomly selected hospitals (median odds ratio, 1.71; 95% confidence interval, 1.52-1.87).

“The good news is that cardiac arrests in the cath lab are relatively infrequent, but the bad news is that they still occur and the outcomes are, in general, pretty dismal,” senior author Deepak L. Bhatt, MD, MPH, said in an interview. “So anything that we can do as hospitals [and] health care systems to improve the care of these patients could go a long way.”

Bhatt Deepak L MA 2_web.jpg

Hospital and patient factors

Possible explanations for the wide disparity in survival are the small number of cardiac arrests in the cath lab, the increasing complexity of cases, and the fact that patients are often very sick and may experience a problem during a procedure, or both, Dr. Bhatt suggested. Cath labs also vary in how they handle resuscitative efforts and access to advanced mechanical support devices, such as extracorporeal membrane oxygenation (ECMO).

“It’s not available in every cath lab and, even in hospitals that have it, they may not have a given ECMO circuit available at the exact time the patient’s having a cardiac arrest,” he said. “That’s one example of something that can make, in my opinion, a big difference in whether a patient lives or dies if they’re having a cardiac arrest but may not always be easily deployed.”

When the investigators looked specifically at hospital-level factors, only yearly volume of cardiac arrests in the cath lab was significantly associated with risk-adjusted survival (P < .01), whereas hospital size, rural or urban setting, teaching status, and geographic location were not.

In multivariate adjusted analyses, factors associated with survival to discharge included age (OR, 0.78), Black race (OR, 0.68), respiratory insufficiency (OR, 0.75), and initial cardiac arrest rhythm (OR, 3.32).

The median hospital RASR was 27% higher for ventricular tachycardia or ventricular fibrillation arrests than for arrests with a nonshockable rhythm of asystole and pulseless electrical activity (55% vs. 28%).

Notably, hospitals in the lowest tertile of risk-adjusted survival rates had a higher prevalence of non-White patients, renal and respiratory comorbidity, and arrest with nonshockable rhythm.

“We want to make sure as we’re contemplating whether to resuscitate a patient or how aggressively to resuscitate, that we aren’t letting any of our own biases, whether they have to do with race or potentially sex and gender, interfere with more objective assessments of whether the patient can in fact be saved or not,” Dr. Bhatt said.

Reached for comment, Srihari S. Naidu, MD, who chaired the writing group for the Society for Cardiovascular Angiography and Interventions’ (SCAI) consensus statement on cardiogenic shock and co-authored its document on best practices in the cardiac cath lab, said the findings show that survival in the cath lab is higher than that seen in-hospital. “Still, there’s a lot of room for improvement,” he said.

He was particularly struck by the variability in survival. “Underprivileged individuals, so those who are non-White populations and have respiratory and renal problems, they seem to have a worse survival and that makes sense – patients with comorbidities – but it feeds into the issue of, ‘Are we treating our population similarly in terms of their baseline race and ethnicity as a gap in care?’ ”

Better survival at hospitals with high volumes likely reflects more experience in handling these events, a rapid response and personnel to help with resuscitation, and overall better critical care and cath lab environment, said Dr. Naidu, director of the cardiac cath lab at Westchester Medical Center and professor of medicine at New York Medical College, both in Valhalla, N.Y.

“So that leads into two things,” he said. “One is that probably we should be working on having all high-risk patients go to centers of excellence. So, for example, [for] patients in shock, patients with STEMI, regionalization of care to the high-volume cath labs that are experienced in cardiac arrest and critical care management may be a way to go.”

“Second, if experience counts, can that experience be simulated through drills and simulations in the cath lab?” Dr. Naidu said. “Should all cath labs have drills where we have a cardiac arrest patient, and how would we respond to that? Who’s going to do the compressions? Where’s the mechanical support device? What are the things we need to have a seamless cardiac arrest protocol for arrests during the cath lab?”

Dr. Bhatt and colleagues acknowledge that despite adjustment for many key variables, the study lacked procedural details that may affect survival and information related to resuscitation efforts.

“We really do need to focus more research efforts, potentially more in the way of quality-improvement efforts, to try and help patients get these sorts of patients who are in dire straits to the cath lab but hopefully also through the hospital discharge and back home,” Dr. Bhatt said.

In an editorial accompanying the study, Matthew L. Tomey, MD, Icahn School of Medicine at Mount Sinai, New York, writes that the “findings and limitations of this study together sound a call to action.”

He also signaled the need for more research and for registries and reporting instruments to capture variables particular to in-laboratory cardiac arrest and resuscitation in the cardiac cath lab. “A necessary first step is the development of consensus data elements for supplemental reporting in cases of ILCA,” such as indication for cath lab presentation, timing of arrest relative to procedure, and cause of arrest.

Dr. Bhatt reported numerous relationships with industry. Dr. Naidu and Dr. Tomey report having no relevant financial relationships.

A version of this article first appeared on Medscape.com.

The chance of surviving a cardiac arrest varies widely across hospitals in the United States, even when the arrest occurs in the highly controlled setting of a cardiac catheterization lab, a new study indicates.

Among 4,787 patients who arrested in the cath lab at 231 hospitals in the Get With The Guidelines (GWTG) Resuscitation registry, only about one-third survived to discharge. The median risk-adjusted survival rate (RASR) for all hospitals was 36%.

When stratified by RASR tertiles, however, median survival rates were 20%, 36%, and 52% for hospitals in the lowest, middle, and highest tertiles.

The odds of survival differed by 71% in similar patients presenting at two randomly selected hospitals (median odds ratio, 1.71; 95% confidence interval, 1.52-1.87).

“The good news is that cardiac arrests in the cath lab are relatively infrequent, but the bad news is that they still occur and the outcomes are, in general, pretty dismal,” senior author Deepak L. Bhatt, MD, MPH, said in an interview. “So anything that we can do as hospitals [and] health care systems to improve the care of these patients could go a long way.”

Bhatt Deepak L MA 2_web.jpg

Hospital and patient factors

Possible explanations for the wide disparity in survival are the small number of cardiac arrests in the cath lab, the increasing complexity of cases, and the fact that patients are often very sick and may experience a problem during a procedure, or both, Dr. Bhatt suggested. Cath labs also vary in how they handle resuscitative efforts and access to advanced mechanical support devices, such as extracorporeal membrane oxygenation (ECMO).

“It’s not available in every cath lab and, even in hospitals that have it, they may not have a given ECMO circuit available at the exact time the patient’s having a cardiac arrest,” he said. “That’s one example of something that can make, in my opinion, a big difference in whether a patient lives or dies if they’re having a cardiac arrest but may not always be easily deployed.”

When the investigators looked specifically at hospital-level factors, only yearly volume of cardiac arrests in the cath lab was significantly associated with risk-adjusted survival (P < .01), whereas hospital size, rural or urban setting, teaching status, and geographic location were not.

In multivariate adjusted analyses, factors associated with survival to discharge included age (OR, 0.78), Black race (OR, 0.68), respiratory insufficiency (OR, 0.75), and initial cardiac arrest rhythm (OR, 3.32).

The median hospital RASR was 27% higher for ventricular tachycardia or ventricular fibrillation arrests than for arrests with a nonshockable rhythm of asystole and pulseless electrical activity (55% vs. 28%).

Notably, hospitals in the lowest tertile of risk-adjusted survival rates had a higher prevalence of non-White patients, renal and respiratory comorbidity, and arrest with nonshockable rhythm.

“We want to make sure as we’re contemplating whether to resuscitate a patient or how aggressively to resuscitate, that we aren’t letting any of our own biases, whether they have to do with race or potentially sex and gender, interfere with more objective assessments of whether the patient can in fact be saved or not,” Dr. Bhatt said.

Reached for comment, Srihari S. Naidu, MD, who chaired the writing group for the Society for Cardiovascular Angiography and Interventions’ (SCAI) consensus statement on cardiogenic shock and co-authored its document on best practices in the cardiac cath lab, said the findings show that survival in the cath lab is higher than that seen in-hospital. “Still, there’s a lot of room for improvement,” he said.

He was particularly struck by the variability in survival. “Underprivileged individuals, so those who are non-White populations and have respiratory and renal problems, they seem to have a worse survival and that makes sense – patients with comorbidities – but it feeds into the issue of, ‘Are we treating our population similarly in terms of their baseline race and ethnicity as a gap in care?’ ”

Better survival at hospitals with high volumes likely reflects more experience in handling these events, a rapid response and personnel to help with resuscitation, and overall better critical care and cath lab environment, said Dr. Naidu, director of the cardiac cath lab at Westchester Medical Center and professor of medicine at New York Medical College, both in Valhalla, N.Y.

“So that leads into two things,” he said. “One is that probably we should be working on having all high-risk patients go to centers of excellence. So, for example, [for] patients in shock, patients with STEMI, regionalization of care to the high-volume cath labs that are experienced in cardiac arrest and critical care management may be a way to go.”

“Second, if experience counts, can that experience be simulated through drills and simulations in the cath lab?” Dr. Naidu said. “Should all cath labs have drills where we have a cardiac arrest patient, and how would we respond to that? Who’s going to do the compressions? Where’s the mechanical support device? What are the things we need to have a seamless cardiac arrest protocol for arrests during the cath lab?”

Dr. Bhatt and colleagues acknowledge that despite adjustment for many key variables, the study lacked procedural details that may affect survival and information related to resuscitation efforts.

“We really do need to focus more research efforts, potentially more in the way of quality-improvement efforts, to try and help patients get these sorts of patients who are in dire straits to the cath lab but hopefully also through the hospital discharge and back home,” Dr. Bhatt said.

In an editorial accompanying the study, Matthew L. Tomey, MD, Icahn School of Medicine at Mount Sinai, New York, writes that the “findings and limitations of this study together sound a call to action.”

He also signaled the need for more research and for registries and reporting instruments to capture variables particular to in-laboratory cardiac arrest and resuscitation in the cardiac cath lab. “A necessary first step is the development of consensus data elements for supplemental reporting in cases of ILCA,” such as indication for cath lab presentation, timing of arrest relative to procedure, and cause of arrest.

Dr. Bhatt reported numerous relationships with industry. Dr. Naidu and Dr. Tomey report having no relevant financial relationships.

A version of this article first appeared on Medscape.com.

High levels of lipoprotein(a) increase the risk for incident cardiovascular disease (CVD) for hypertensive individuals but not for those without hypertension, a new MESA analysis suggests.

There are ways to test for statistical interaction, “in this case, multiplicative interaction between Lp(a) and hypertension, which suggests that Lp(a) is actually modifying the effect between blood pressure and cardiovascular disease. It’s not simply additive,” senior author Michael D. Shapiro, DO, Wake Forest University, Winston-Salem, N.C., told this news organization.

“So that’s new and I don’t think anybody’s looked at that before.”

Although Lp(a) is recognized as an independent cause of atherosclerotic CVD (ASCVD), the significance of Lp(a) in hypertension has been “virtually untapped,” he noted. A recent prospective study reported that elevated CVD risk was present only in individuals with Lp(a) ≥ 30 mg/dL and hypertension but it included only Chinese participants with stable coronary artery disease.

The current analysis, published online in the journal Hypertension, included 6,674 participants in the ongoing Multi-Ethnic Study of Atherosclerosis (MESA), all free of baseline ASCVD, who were recruited from six communities in the United States and had measured baseline Lp(a), blood pressure, and CVD events data over follow-up from 2000 to 2018.

Participants were stratified into four groups based on the presence or absence of hypertension (defined as 140/90 mm Hg or higher or the use of antihypertensive drugs) and an Lp(a) threshold of 50 mg/dL, as recommended by the American College of Cardiology/American Heart Association cholesterol guideline for consideration as an ASCVD risk-enhancing factor.

Slightly more than half of participants were female (52.8%), 38.6% were White, 27.5% were African American, 22.1% were Hispanic, and 11.9% were Chinese American.

According to the researchers, 809 participants had a CVD event over an average follow-up of 13.9 years, including 7.7% of group 1 with Lp(a) < 50 mg/dL and no hypertension, 8.0% of group 2 with Lp(a) ≥ 50 mg/dL and no hypertension, 16.2% of group 3 with Lp(a) < 50 mg/dL and hypertension, and 18.8% of group 4 with Lp(a) ≥ 50 mg/dL and hypertension.

When compared with group 1 in a fully adjusted Cox proportional model, participants with elevated Lp(a) and no hypertension (group 2) did not have an increased risk of CVD events (hazard ratio [HR], 1.09; 95% confidence interval [CI], 0.79-1.50).

CVD risk, however, was significantly higher in group 3 with normal Lp(a) and hypertension (HR, 1.66; 95% CI, 1.39-1.98) and group 4 with elevated Lp(a) and hypertension (HR, 2.07, 95% CI, 1.63-2.62).

Among all participants with hypertension (groups 3 and 4), Lp(a) was associated with a significant increase in CVD risk (HR, 1.24, 95% CI, 1.01-1.53).

“What I think is interesting here is that in the absence of hypertension, we didn’t really see an increased risk despite having an elevated Lp(a),” said Dr. Shapiro. “What it may indicate is that really for Lp(a) to be associated with risk, there may already need to be some kind of arterial damage that allows the Lp(a) to have its atherogenic impact.

“In other words, in individuals who have totally normal arterial walls, potentially, maybe that is protective enough against Lp(a) that in the absence of any other injurious factor, maybe it’s not an issue,” he said. “That’s a big hypothesis-generating [statement], but hypertension is certainly one of those risk factors that’s known to cause endothelial injury and endothelial dysfunction.”

Dr. Shapiro pointed out that when first measured in MESA, Lp(a) was measured in 4,600 participants who were not on statins, which is important because statins can increase Lp(a) levels.

“When you look just at those participants, those 4,600, you actually do see a relationship between Lp(a) and cardiovascular disease,” he said. “When you look at the whole population, including the 17% who are baseline populations, even when you adjust for statin therapy, we fail to see that, at least in the long-term follow up.”

Nevertheless, he cautioned that hypertension is just one of many traditional cardiovascular risk factors that could affect the relationship between Lp(a) and CVD risk. “I don’t want to suggest that we believe there’s something specifically magical about hypertension and Lp(a). If we chose, say, diabetes or smoking or another traditional risk factor, we may or may not have seen kind of similar results.”

When the investigators stratified the analyses by sex and race/ethnicity, they found that Lp(a) was not associated with CVD risk, regardless of hypertension status. In Black participants, however, greater CVD risk was seen when both elevated Lp(a) and hypertension were present (HR, 2.07, 95% CI, 1.34-3.21; P = .001).

Asked whether the results support one-time universal screening for Lp(a), which is almost exclusively genetically determined, Dr. Shapiro said he supports screening but that this was a secondary analysis and its numbers were modest. He added that median Lp(a) level is higher in African Americans than any other racial/ethnic group but the “most recent data has clarified that, per any absolute level of Lp(a), it appears to confer the same absolute risk in any racial or ethnic group.”

The authors acknowledge that differential loss to follow-up could have resulted in selection bias in the study and that there were relatively few CVD events in group 2, which may have limited the ability to detect differences in groups without hypertension, particularly in the subgroup analyses. Other limitations are the potential for residual confounding and participants may have developed hypertension during follow-up, resulting in misclassification bias.

Further research is needed to better understand the mechanistic link between Lp(a), hypertension, and CVD, Dr. Shapiro said. Further insights also should be provided by the ongoing phase 3 Lp(a) HORIZON trial evaluating the effect of Lp(a) lowering with the investigational antisense drug, pelacarsen, on cardiovascular events in 8,324 patients with established CVD and elevated Lp(a). The study is expected to be completed in May 2025.

The study was supported by contracts from the National Heart, Lung, and Blood Institute and by grants from the National Center for Advanced Translational Sciences. Dr. Shapiro reports participating in scientific advisory boards with Amgen, Novartis, and Novo Nordisk, and consulting for Regeneron.

A version of this article first appeared on Medscape.com.

High levels of lipoprotein(a) increase the risk for incident cardiovascular disease (CVD) for hypertensive individuals but not for those without hypertension, a new MESA analysis suggests.

There are ways to test for statistical interaction, “in this case, multiplicative interaction between Lp(a) and hypertension, which suggests that Lp(a) is actually modifying the effect between blood pressure and cardiovascular disease. It’s not simply additive,” senior author Michael D. Shapiro, DO, Wake Forest University, Winston-Salem, N.C., told this news organization.

“So that’s new and I don’t think anybody’s looked at that before.”

Although Lp(a) is recognized as an independent cause of atherosclerotic CVD (ASCVD), the significance of Lp(a) in hypertension has been “virtually untapped,” he noted. A recent prospective study reported that elevated CVD risk was present only in individuals with Lp(a) ≥ 30 mg/dL and hypertension but it included only Chinese participants with stable coronary artery disease.

The current analysis, published online in the journal Hypertension, included 6,674 participants in the ongoing Multi-Ethnic Study of Atherosclerosis (MESA), all free of baseline ASCVD, who were recruited from six communities in the United States and had measured baseline Lp(a), blood pressure, and CVD events data over follow-up from 2000 to 2018.

Participants were stratified into four groups based on the presence or absence of hypertension (defined as 140/90 mm Hg or higher or the use of antihypertensive drugs) and an Lp(a) threshold of 50 mg/dL, as recommended by the American College of Cardiology/American Heart Association cholesterol guideline for consideration as an ASCVD risk-enhancing factor.

Slightly more than half of participants were female (52.8%), 38.6% were White, 27.5% were African American, 22.1% were Hispanic, and 11.9% were Chinese American.

According to the researchers, 809 participants had a CVD event over an average follow-up of 13.9 years, including 7.7% of group 1 with Lp(a) < 50 mg/dL and no hypertension, 8.0% of group 2 with Lp(a) ≥ 50 mg/dL and no hypertension, 16.2% of group 3 with Lp(a) < 50 mg/dL and hypertension, and 18.8% of group 4 with Lp(a) ≥ 50 mg/dL and hypertension.

When compared with group 1 in a fully adjusted Cox proportional model, participants with elevated Lp(a) and no hypertension (group 2) did not have an increased risk of CVD events (hazard ratio [HR], 1.09; 95% confidence interval [CI], 0.79-1.50).

CVD risk, however, was significantly higher in group 3 with normal Lp(a) and hypertension (HR, 1.66; 95% CI, 1.39-1.98) and group 4 with elevated Lp(a) and hypertension (HR, 2.07, 95% CI, 1.63-2.62).

Among all participants with hypertension (groups 3 and 4), Lp(a) was associated with a significant increase in CVD risk (HR, 1.24, 95% CI, 1.01-1.53).

“What I think is interesting here is that in the absence of hypertension, we didn’t really see an increased risk despite having an elevated Lp(a),” said Dr. Shapiro. “What it may indicate is that really for Lp(a) to be associated with risk, there may already need to be some kind of arterial damage that allows the Lp(a) to have its atherogenic impact.

“In other words, in individuals who have totally normal arterial walls, potentially, maybe that is protective enough against Lp(a) that in the absence of any other injurious factor, maybe it’s not an issue,” he said. “That’s a big hypothesis-generating [statement], but hypertension is certainly one of those risk factors that’s known to cause endothelial injury and endothelial dysfunction.”

Dr. Shapiro pointed out that when first measured in MESA, Lp(a) was measured in 4,600 participants who were not on statins, which is important because statins can increase Lp(a) levels.

“When you look just at those participants, those 4,600, you actually do see a relationship between Lp(a) and cardiovascular disease,” he said. “When you look at the whole population, including the 17% who are baseline populations, even when you adjust for statin therapy, we fail to see that, at least in the long-term follow up.”

Nevertheless, he cautioned that hypertension is just one of many traditional cardiovascular risk factors that could affect the relationship between Lp(a) and CVD risk. “I don’t want to suggest that we believe there’s something specifically magical about hypertension and Lp(a). If we chose, say, diabetes or smoking or another traditional risk factor, we may or may not have seen kind of similar results.”

When the investigators stratified the analyses by sex and race/ethnicity, they found that Lp(a) was not associated with CVD risk, regardless of hypertension status. In Black participants, however, greater CVD risk was seen when both elevated Lp(a) and hypertension were present (HR, 2.07, 95% CI, 1.34-3.21; P = .001).

Asked whether the results support one-time universal screening for Lp(a), which is almost exclusively genetically determined, Dr. Shapiro said he supports screening but that this was a secondary analysis and its numbers were modest. He added that median Lp(a) level is higher in African Americans than any other racial/ethnic group but the “most recent data has clarified that, per any absolute level of Lp(a), it appears to confer the same absolute risk in any racial or ethnic group.”

The authors acknowledge that differential loss to follow-up could have resulted in selection bias in the study and that there were relatively few CVD events in group 2, which may have limited the ability to detect differences in groups without hypertension, particularly in the subgroup analyses. Other limitations are the potential for residual confounding and participants may have developed hypertension during follow-up, resulting in misclassification bias.

Further research is needed to better understand the mechanistic link between Lp(a), hypertension, and CVD, Dr. Shapiro said. Further insights also should be provided by the ongoing phase 3 Lp(a) HORIZON trial evaluating the effect of Lp(a) lowering with the investigational antisense drug, pelacarsen, on cardiovascular events in 8,324 patients with established CVD and elevated Lp(a). The study is expected to be completed in May 2025.

The study was supported by contracts from the National Heart, Lung, and Blood Institute and by grants from the National Center for Advanced Translational Sciences. Dr. Shapiro reports participating in scientific advisory boards with Amgen, Novartis, and Novo Nordisk, and consulting for Regeneron.

A version of this article first appeared on Medscape.com.

High levels of lipoprotein(a) increase the risk for incident cardiovascular disease (CVD) for hypertensive individuals but not for those without hypertension, a new MESA analysis suggests.

There are ways to test for statistical interaction, “in this case, multiplicative interaction between Lp(a) and hypertension, which suggests that Lp(a) is actually modifying the effect between blood pressure and cardiovascular disease. It’s not simply additive,” senior author Michael D. Shapiro, DO, Wake Forest University, Winston-Salem, N.C., told this news organization.

“So that’s new and I don’t think anybody’s looked at that before.”

Although Lp(a) is recognized as an independent cause of atherosclerotic CVD (ASCVD), the significance of Lp(a) in hypertension has been “virtually untapped,” he noted. A recent prospective study reported that elevated CVD risk was present only in individuals with Lp(a) ≥ 30 mg/dL and hypertension but it included only Chinese participants with stable coronary artery disease.

The current analysis, published online in the journal Hypertension, included 6,674 participants in the ongoing Multi-Ethnic Study of Atherosclerosis (MESA), all free of baseline ASCVD, who were recruited from six communities in the United States and had measured baseline Lp(a), blood pressure, and CVD events data over follow-up from 2000 to 2018.

Participants were stratified into four groups based on the presence or absence of hypertension (defined as 140/90 mm Hg or higher or the use of antihypertensive drugs) and an Lp(a) threshold of 50 mg/dL, as recommended by the American College of Cardiology/American Heart Association cholesterol guideline for consideration as an ASCVD risk-enhancing factor.

Slightly more than half of participants were female (52.8%), 38.6% were White, 27.5% were African American, 22.1% were Hispanic, and 11.9% were Chinese American.

According to the researchers, 809 participants had a CVD event over an average follow-up of 13.9 years, including 7.7% of group 1 with Lp(a) < 50 mg/dL and no hypertension, 8.0% of group 2 with Lp(a) ≥ 50 mg/dL and no hypertension, 16.2% of group 3 with Lp(a) < 50 mg/dL and hypertension, and 18.8% of group 4 with Lp(a) ≥ 50 mg/dL and hypertension.

When compared with group 1 in a fully adjusted Cox proportional model, participants with elevated Lp(a) and no hypertension (group 2) did not have an increased risk of CVD events (hazard ratio [HR], 1.09; 95% confidence interval [CI], 0.79-1.50).

CVD risk, however, was significantly higher in group 3 with normal Lp(a) and hypertension (HR, 1.66; 95% CI, 1.39-1.98) and group 4 with elevated Lp(a) and hypertension (HR, 2.07, 95% CI, 1.63-2.62).

Among all participants with hypertension (groups 3 and 4), Lp(a) was associated with a significant increase in CVD risk (HR, 1.24, 95% CI, 1.01-1.53).

“What I think is interesting here is that in the absence of hypertension, we didn’t really see an increased risk despite having an elevated Lp(a),” said Dr. Shapiro. “What it may indicate is that really for Lp(a) to be associated with risk, there may already need to be some kind of arterial damage that allows the Lp(a) to have its atherogenic impact.

“In other words, in individuals who have totally normal arterial walls, potentially, maybe that is protective enough against Lp(a) that in the absence of any other injurious factor, maybe it’s not an issue,” he said. “That’s a big hypothesis-generating [statement], but hypertension is certainly one of those risk factors that’s known to cause endothelial injury and endothelial dysfunction.”

Dr. Shapiro pointed out that when first measured in MESA, Lp(a) was measured in 4,600 participants who were not on statins, which is important because statins can increase Lp(a) levels.

“When you look just at those participants, those 4,600, you actually do see a relationship between Lp(a) and cardiovascular disease,” he said. “When you look at the whole population, including the 17% who are baseline populations, even when you adjust for statin therapy, we fail to see that, at least in the long-term follow up.”

Nevertheless, he cautioned that hypertension is just one of many traditional cardiovascular risk factors that could affect the relationship between Lp(a) and CVD risk. “I don’t want to suggest that we believe there’s something specifically magical about hypertension and Lp(a). If we chose, say, diabetes or smoking or another traditional risk factor, we may or may not have seen kind of similar results.”

When the investigators stratified the analyses by sex and race/ethnicity, they found that Lp(a) was not associated with CVD risk, regardless of hypertension status. In Black participants, however, greater CVD risk was seen when both elevated Lp(a) and hypertension were present (HR, 2.07, 95% CI, 1.34-3.21; P = .001).

Asked whether the results support one-time universal screening for Lp(a), which is almost exclusively genetically determined, Dr. Shapiro said he supports screening but that this was a secondary analysis and its numbers were modest. He added that median Lp(a) level is higher in African Americans than any other racial/ethnic group but the “most recent data has clarified that, per any absolute level of Lp(a), it appears to confer the same absolute risk in any racial or ethnic group.”

The authors acknowledge that differential loss to follow-up could have resulted in selection bias in the study and that there were relatively few CVD events in group 2, which may have limited the ability to detect differences in groups without hypertension, particularly in the subgroup analyses. Other limitations are the potential for residual confounding and participants may have developed hypertension during follow-up, resulting in misclassification bias.

Further research is needed to better understand the mechanistic link between Lp(a), hypertension, and CVD, Dr. Shapiro said. Further insights also should be provided by the ongoing phase 3 Lp(a) HORIZON trial evaluating the effect of Lp(a) lowering with the investigational antisense drug, pelacarsen, on cardiovascular events in 8,324 patients with established CVD and elevated Lp(a). The study is expected to be completed in May 2025.

The study was supported by contracts from the National Heart, Lung, and Blood Institute and by grants from the National Center for Advanced Translational Sciences. Dr. Shapiro reports participating in scientific advisory boards with Amgen, Novartis, and Novo Nordisk, and consulting for Regeneron.

A version of this article first appeared on Medscape.com.

Vitamin D supplements do not prevent muscle symptoms in new statin users or affect the likelihood of discontinuing a statin due to muscle pain and discomfort, a substudy of the VITAL trial indicates.

Among more than 2,000 randomized participants, statin-associated muscle symptoms (SAMS) were reported by 31% assigned to vitamin D and 31% assigned to placebo.

vitamin_d_in_bottle_photo_web.jpg

The two groups were equally likely to stop taking a statin due to muscle symptoms, at 13%.

No significant difference was observed in SAMS (odds ratio [OR], 0.97; 95% confidence interval [CI], 0.80-1.18) or statin discontinuations (OR, 1.04; 95% CI, 0.80-1.35) after adjustment for baseline variables and other characteristics, namely age, sex, and African-American race, previously found to be associated with SAMS in VITAL.

“We actually thought when we started out that maybe we were going to show something, that maybe it was going to be that the people who got the vitamin D were least likely to have a problem with a statin than all those who didn’t get vitamin D, but that is not what we showed,” senior author Neil J. Stone, MD, Northwestern University, Chicago, told this news organization.

He noted that patients in the clinic with low levels of vitamin D often have muscle pain and discomfort and that previous unblinded studies suggested vitamin D might benefit patients with SAMS and reduce statin intolerance.

As previously reported, the double-blind VITAL trial showed no difference in the primary prevention of cardiovascular disease or cancer at 5 years among 25,871 middle-aged adults randomized to vitamin D3 at 2000 IU/d or placebo, regardless of their baseline vitamin D level.

Unlike previous studies showing a benefit with vitamin D on SAMS, importantly, VITAL participants were unaware of whether they were taking vitamin D or placebo and were not expecting any help with their muscle symptoms, first author Mark A. Hlatky, MD, Stanford (Calif.) University, pointed out in an interview.

As to how many statin users turn to the popular supplement for SAMS, he said that number couldn’t be pinned down, despite a lengthy search. “But I think it’s very common, because up to half of people stop taking their statins within a year and many of these do so because of statin-associated muscle symptoms, and we found it in about 30% of people who have them. I have them myself and was motivated to study it because I thought this was an interesting question.”

The results were published online in JAMA Cardiology.
 

SAMS by baseline 25-OHD

The substudy included 2,083 patients who initiated statin therapy after randomization and were surveyed in early 2016 about their statin use and muscle symptoms.

Two-thirds, or 1,397 patients, had 25-hydroxy vitamin D (25-OHD) measured at baseline, with 47% having levels < 30 ng/mL and 13% levels < 20 ng/mL.

Serum 25-OHD levels were virtually identical in the two treatment groups (mean, 30.4 ng/mL; median, 30.0 ng/mL). The frequency of SAMS did not differ between those assigned to vitamin D or placebo (28% vs. 31%).

The odds ratios for the association with vitamin D on SAMS were:

• 0.86 in all respondents with 25-OHD measured (95% CI, 0.69-1.09).
• 0.87 in those with levels ≥ 30 ng/mL (95% CI, 0.64-1.19).
• 0.85 with levels of 20-30 ng/mL (95% CI, 0.56-1.28).
• 0.93 with levels < 20 ng/mL (95% CI, 0.50-1.74).

The test for treatment effect modification by baseline serum 25-OHD level was not significant (P for interaction = .83).

In addition, the rate of muscle symptoms was similar between participants randomized to vitamin D and placebo when researchers used a cutpoint to define low 25-OHD of < 30 ng/mL (27% vs. 30%) or < 20 ng/mL (33% vs. 35%).

“We didn’t find any evidence at all that the people who came into the study with low levels of vitamin D did better with the supplement in this case,” Dr. Hlatky said. “So that wasn’t the reason we didn’t see anything.”

Critics may suggest the trial didn’t use a high enough dose of vitamin D, but both Dr. Hlatky and Dr. Stone say that’s unlikely to be a factor in the results because 2,000 IU/d is a substantial dose and well above the recommended adult daily dose of 600-800 IU.

They caution that the substudy wasn’t prespecified, was smaller than the parent trial, and did not have a protocol in place to detail SAMS. They also can’t rule out the possibility that vitamin D may have an effect in patients who have confirmed intolerance to multiple statins, especially after adjustment for the statin type and dose.

“If you’re taking vitamin D to keep from having statin-associated muscle symptoms, this very carefully done substudy with the various caveats doesn’t support that and that’s not something I would give my patients,” Dr. Stone said.

“The most important thing from a negative study is that it allows you to focus your attention on things that may be much more productive rather than assuming that just giving everybody vitamin D will take care of the statin issue,” he added. “Maybe the answer is going to be somewhere else, and there’ll be a lot of people I’m sure who will offer their advice as what the answer is but, I would argue, we want to see more studies to pin it down. So people can get some science behind what they do to try to reduce statin-associated muscle symptoms.”

Paul D. Thompson, MD, chief of cardiology emeritus at Hartford (Conn.) Hospital, and a SAMS expert who was not involved with the research, said, “This is a useful publication, and it’s smart in that it took advantage of a study that was already done.”

He acknowledged being skeptical of a beneficial effect of vitamin D supplementation on SAMS, because some previous data have been retracted, but said that potential treatments are best tested in patients with confirmed statin myalgia, as was the case in his team’s negative trial of CoQ10 supplementation.

That said, the present “study was able to at least give some of the best evidence so far that vitamin D doesn’t do anything to improve symptoms,” Dr. Thompson said. “So maybe it will cut down on so many vitamin D levels [being measured] and use of vitamin D when you don’t really need it.”

The study was sponsored by the Hyperlipidemia Research Fund at Northwestern University. The VITAL trial was supported by grants from the National Institutes of Health, and Quest Diagnostics performed the laboratory measurements at no additional costs. Dr. Hlatky reports no relevant financial relationships. Dr. Stone reports a grant from the Hyperlipidemia Research Fund at Northwestern and honorarium for educational activity for Knowledge to Practice. Dr. Thompson is on the executive committee for a study examining bempedoic acid in patients with statin-associated muscle symptoms.

A version of this article first appeared on Medscape.com.

Vitamin D supplements do not prevent muscle symptoms in new statin users or affect the likelihood of discontinuing a statin due to muscle pain and discomfort, a substudy of the VITAL trial indicates.

Among more than 2,000 randomized participants, statin-associated muscle symptoms (SAMS) were reported by 31% assigned to vitamin D and 31% assigned to placebo.

vitamin_d_in_bottle_photo_web.jpg

The two groups were equally likely to stop taking a statin due to muscle symptoms, at 13%.

No significant difference was observed in SAMS (odds ratio [OR], 0.97; 95% confidence interval [CI], 0.80-1.18) or statin discontinuations (OR, 1.04; 95% CI, 0.80-1.35) after adjustment for baseline variables and other characteristics, namely age, sex, and African-American race, previously found to be associated with SAMS in VITAL.

“We actually thought when we started out that maybe we were going to show something, that maybe it was going to be that the people who got the vitamin D were least likely to have a problem with a statin than all those who didn’t get vitamin D, but that is not what we showed,” senior author Neil J. Stone, MD, Northwestern University, Chicago, told this news organization.

He noted that patients in the clinic with low levels of vitamin D often have muscle pain and discomfort and that previous unblinded studies suggested vitamin D might benefit patients with SAMS and reduce statin intolerance.

As previously reported, the double-blind VITAL trial showed no difference in the primary prevention of cardiovascular disease or cancer at 5 years among 25,871 middle-aged adults randomized to vitamin D3 at 2000 IU/d or placebo, regardless of their baseline vitamin D level.

Unlike previous studies showing a benefit with vitamin D on SAMS, importantly, VITAL participants were unaware of whether they were taking vitamin D or placebo and were not expecting any help with their muscle symptoms, first author Mark A. Hlatky, MD, Stanford (Calif.) University, pointed out in an interview.

As to how many statin users turn to the popular supplement for SAMS, he said that number couldn’t be pinned down, despite a lengthy search. “But I think it’s very common, because up to half of people stop taking their statins within a year and many of these do so because of statin-associated muscle symptoms, and we found it in about 30% of people who have them. I have them myself and was motivated to study it because I thought this was an interesting question.”

The results were published online in JAMA Cardiology.
 

SAMS by baseline 25-OHD

The substudy included 2,083 patients who initiated statin therapy after randomization and were surveyed in early 2016 about their statin use and muscle symptoms.

Two-thirds, or 1,397 patients, had 25-hydroxy vitamin D (25-OHD) measured at baseline, with 47% having levels < 30 ng/mL and 13% levels < 20 ng/mL.

Serum 25-OHD levels were virtually identical in the two treatment groups (mean, 30.4 ng/mL; median, 30.0 ng/mL). The frequency of SAMS did not differ between those assigned to vitamin D or placebo (28% vs. 31%).

The odds ratios for the association with vitamin D on SAMS were:

• 0.86 in all respondents with 25-OHD measured (95% CI, 0.69-1.09).
• 0.87 in those with levels ≥ 30 ng/mL (95% CI, 0.64-1.19).
• 0.85 with levels of 20-30 ng/mL (95% CI, 0.56-1.28).
• 0.93 with levels < 20 ng/mL (95% CI, 0.50-1.74).

The test for treatment effect modification by baseline serum 25-OHD level was not significant (P for interaction = .83).

In addition, the rate of muscle symptoms was similar between participants randomized to vitamin D and placebo when researchers used a cutpoint to define low 25-OHD of < 30 ng/mL (27% vs. 30%) or < 20 ng/mL (33% vs. 35%).

“We didn’t find any evidence at all that the people who came into the study with low levels of vitamin D did better with the supplement in this case,” Dr. Hlatky said. “So that wasn’t the reason we didn’t see anything.”

Critics may suggest the trial didn’t use a high enough dose of vitamin D, but both Dr. Hlatky and Dr. Stone say that’s unlikely to be a factor in the results because 2,000 IU/d is a substantial dose and well above the recommended adult daily dose of 600-800 IU.

They caution that the substudy wasn’t prespecified, was smaller than the parent trial, and did not have a protocol in place to detail SAMS. They also can’t rule out the possibility that vitamin D may have an effect in patients who have confirmed intolerance to multiple statins, especially after adjustment for the statin type and dose.

“If you’re taking vitamin D to keep from having statin-associated muscle symptoms, this very carefully done substudy with the various caveats doesn’t support that and that’s not something I would give my patients,” Dr. Stone said.

“The most important thing from a negative study is that it allows you to focus your attention on things that may be much more productive rather than assuming that just giving everybody vitamin D will take care of the statin issue,” he added. “Maybe the answer is going to be somewhere else, and there’ll be a lot of people I’m sure who will offer their advice as what the answer is but, I would argue, we want to see more studies to pin it down. So people can get some science behind what they do to try to reduce statin-associated muscle symptoms.”

Paul D. Thompson, MD, chief of cardiology emeritus at Hartford (Conn.) Hospital, and a SAMS expert who was not involved with the research, said, “This is a useful publication, and it’s smart in that it took advantage of a study that was already done.”

He acknowledged being skeptical of a beneficial effect of vitamin D supplementation on SAMS, because some previous data have been retracted, but said that potential treatments are best tested in patients with confirmed statin myalgia, as was the case in his team’s negative trial of CoQ10 supplementation.

That said, the present “study was able to at least give some of the best evidence so far that vitamin D doesn’t do anything to improve symptoms,” Dr. Thompson said. “So maybe it will cut down on so many vitamin D levels [being measured] and use of vitamin D when you don’t really need it.”

The study was sponsored by the Hyperlipidemia Research Fund at Northwestern University. The VITAL trial was supported by grants from the National Institutes of Health, and Quest Diagnostics performed the laboratory measurements at no additional costs. Dr. Hlatky reports no relevant financial relationships. Dr. Stone reports a grant from the Hyperlipidemia Research Fund at Northwestern and honorarium for educational activity for Knowledge to Practice. Dr. Thompson is on the executive committee for a study examining bempedoic acid in patients with statin-associated muscle symptoms.

A version of this article first appeared on Medscape.com.

Vitamin D supplements do not prevent muscle symptoms in new statin users or affect the likelihood of discontinuing a statin due to muscle pain and discomfort, a substudy of the VITAL trial indicates.

Among more than 2,000 randomized participants, statin-associated muscle symptoms (SAMS) were reported by 31% assigned to vitamin D and 31% assigned to placebo.

vitamin_d_in_bottle_photo_web.jpg

The two groups were equally likely to stop taking a statin due to muscle symptoms, at 13%.

No significant difference was observed in SAMS (odds ratio [OR], 0.97; 95% confidence interval [CI], 0.80-1.18) or statin discontinuations (OR, 1.04; 95% CI, 0.80-1.35) after adjustment for baseline variables and other characteristics, namely age, sex, and African-American race, previously found to be associated with SAMS in VITAL.

“We actually thought when we started out that maybe we were going to show something, that maybe it was going to be that the people who got the vitamin D were least likely to have a problem with a statin than all those who didn’t get vitamin D, but that is not what we showed,” senior author Neil J. Stone, MD, Northwestern University, Chicago, told this news organization.

He noted that patients in the clinic with low levels of vitamin D often have muscle pain and discomfort and that previous unblinded studies suggested vitamin D might benefit patients with SAMS and reduce statin intolerance.

As previously reported, the double-blind VITAL trial showed no difference in the primary prevention of cardiovascular disease or cancer at 5 years among 25,871 middle-aged adults randomized to vitamin D3 at 2000 IU/d or placebo, regardless of their baseline vitamin D level.

Unlike previous studies showing a benefit with vitamin D on SAMS, importantly, VITAL participants were unaware of whether they were taking vitamin D or placebo and were not expecting any help with their muscle symptoms, first author Mark A. Hlatky, MD, Stanford (Calif.) University, pointed out in an interview.

As to how many statin users turn to the popular supplement for SAMS, he said that number couldn’t be pinned down, despite a lengthy search. “But I think it’s very common, because up to half of people stop taking their statins within a year and many of these do so because of statin-associated muscle symptoms, and we found it in about 30% of people who have them. I have them myself and was motivated to study it because I thought this was an interesting question.”

The results were published online in JAMA Cardiology.
 

SAMS by baseline 25-OHD

The substudy included 2,083 patients who initiated statin therapy after randomization and were surveyed in early 2016 about their statin use and muscle symptoms.

Two-thirds, or 1,397 patients, had 25-hydroxy vitamin D (25-OHD) measured at baseline, with 47% having levels < 30 ng/mL and 13% levels < 20 ng/mL.

Serum 25-OHD levels were virtually identical in the two treatment groups (mean, 30.4 ng/mL; median, 30.0 ng/mL). The frequency of SAMS did not differ between those assigned to vitamin D or placebo (28% vs. 31%).

The odds ratios for the association with vitamin D on SAMS were:

• 0.86 in all respondents with 25-OHD measured (95% CI, 0.69-1.09).
• 0.87 in those with levels ≥ 30 ng/mL (95% CI, 0.64-1.19).
• 0.85 with levels of 20-30 ng/mL (95% CI, 0.56-1.28).
• 0.93 with levels < 20 ng/mL (95% CI, 0.50-1.74).

The test for treatment effect modification by baseline serum 25-OHD level was not significant (P for interaction = .83).

In addition, the rate of muscle symptoms was similar between participants randomized to vitamin D and placebo when researchers used a cutpoint to define low 25-OHD of < 30 ng/mL (27% vs. 30%) or < 20 ng/mL (33% vs. 35%).

“We didn’t find any evidence at all that the people who came into the study with low levels of vitamin D did better with the supplement in this case,” Dr. Hlatky said. “So that wasn’t the reason we didn’t see anything.”

Critics may suggest the trial didn’t use a high enough dose of vitamin D, but both Dr. Hlatky and Dr. Stone say that’s unlikely to be a factor in the results because 2,000 IU/d is a substantial dose and well above the recommended adult daily dose of 600-800 IU.

They caution that the substudy wasn’t prespecified, was smaller than the parent trial, and did not have a protocol in place to detail SAMS. They also can’t rule out the possibility that vitamin D may have an effect in patients who have confirmed intolerance to multiple statins, especially after adjustment for the statin type and dose.

“If you’re taking vitamin D to keep from having statin-associated muscle symptoms, this very carefully done substudy with the various caveats doesn’t support that and that’s not something I would give my patients,” Dr. Stone said.

“The most important thing from a negative study is that it allows you to focus your attention on things that may be much more productive rather than assuming that just giving everybody vitamin D will take care of the statin issue,” he added. “Maybe the answer is going to be somewhere else, and there’ll be a lot of people I’m sure who will offer their advice as what the answer is but, I would argue, we want to see more studies to pin it down. So people can get some science behind what they do to try to reduce statin-associated muscle symptoms.”

Paul D. Thompson, MD, chief of cardiology emeritus at Hartford (Conn.) Hospital, and a SAMS expert who was not involved with the research, said, “This is a useful publication, and it’s smart in that it took advantage of a study that was already done.”

He acknowledged being skeptical of a beneficial effect of vitamin D supplementation on SAMS, because some previous data have been retracted, but said that potential treatments are best tested in patients with confirmed statin myalgia, as was the case in his team’s negative trial of CoQ10 supplementation.

That said, the present “study was able to at least give some of the best evidence so far that vitamin D doesn’t do anything to improve symptoms,” Dr. Thompson said. “So maybe it will cut down on so many vitamin D levels [being measured] and use of vitamin D when you don’t really need it.”

The study was sponsored by the Hyperlipidemia Research Fund at Northwestern University. The VITAL trial was supported by grants from the National Institutes of Health, and Quest Diagnostics performed the laboratory measurements at no additional costs. Dr. Hlatky reports no relevant financial relationships. Dr. Stone reports a grant from the Hyperlipidemia Research Fund at Northwestern and honorarium for educational activity for Knowledge to Practice. Dr. Thompson is on the executive committee for a study examining bempedoic acid in patients with statin-associated muscle symptoms.

A version of this article first appeared on Medscape.com.

CHICAGO – An investigational aldosterone synthase inhibitor could be an effective new treatment to reduce blood pressure in patients with treatment-resistant hypertension, reslts of a phase 2 study suggest.

The BrigHTN trial showed systolic blood pressure fell by an average of 20.3 mm Hg, 17.5 mm Hg, and 12.1 mm Hg with baxdrostat 2 mg, 1 mg, and 0.5 mg after 12 weeks follow-up in 248 patients unable to achieve target blood pressure on stable doses of at least three antihypertensive agents, including a diuretic.

After adjustment for the –9.4 mm Hg change observed in the placebo group, there was a statistically significant difference of 11.0 mm Hg in the 2-mg baxdrostat group (P = .0001) and of 8.1 mm Hg in the 1-mg baxdrostat group (P = .003).

The adjusted change in diastolic blood pressure was significant only for the 2-mg dose (–5.2 mm Hg; P = .004).

Once-daily oral baxdrostat had an acceptable side-effect profile and no patients died.

The study, which was stopped early after meeting criteria for overwhelming efficacy, was presented in the final late-breaking science session at the American Heart Association scientific sessions and published simultaneously in the New England Journal of Medicine.
 

Threading the needle

For at least 20 years, researchers have tried to create a drug that would lower aldosterone levels directly by inhibiting hormone synthesis rather than blocking the mineralocorticoid receptor.

What’s made this extraordinarily difficult is that the enzyme that makes aldosterone synthase and the enzyme required for cortisol synthase, 11-beta-hydroxylase, are 93% sequence similar. Baxdrostat, however, is able to selectively block aldosterone synthase, and thus the production of aldosterone, without also blocking the production of cortisol, explained Mason W. Freeman, MD, lead author of the study and executive vice president of clinical development at CinCor Pharma, which is developing the agent.

“We have beautiful biomarker evidence of not only blood pressure lowering but the mechanism by which that blood pressure reduction is occurring,” he said.

Over 12 weeks of follow-up in the new study, the use of baxdrostat led to decreases in serum aldosterone levels ranging from 3.0 ng/dL with the 0.5-mg dose to 4.9 ng/dL with the 2-mg dose. The 24-hour urinary aldosterone levels decreased with all three doses tested.

Baxdrostat increased plasma renin activity by 3.6, 5.0, and 13.8 mg/mL per hr with the 0.5, 1.0, and 2.0 mg doses, respectively, an indicator of its effect on lowering salt and fluid retention, Dr. Freeman said. Serum cortisol levels were not reduced in any of the baxdrostat groups throughout the study.
 

‘A bright future’

“It seems to have a bright future in the area of resistant hypertension, particularly in patients who are producing too much aldosterone,” said Suzanne Oparil, MD, invited discussant for the study and director of the Vascular Biology and Hypertension program at the University of Alabama at Birmingham.

She noted that aldosterone is a major contributor to the pathogenesis of resistant hypertension, which afflicts about 20% of the hypertensive population. Aldosterone antagonists are considered by many to be the best add-on treatment for resistant hypertension and do lower blood pressure.

“But they have major problems,” Dr. Oparil added. “Spironolactone, for example, causes hyperkalemia in many patients and adverse effects such as gynecomastia, erectile dysfunction, and feminization.”

Baxdrostat was well tolerated with no serious adverse events deemed related to treatment, Dr. Freeman reported. A total of 18 serious adverse events occurred in 10 patients, 6 of which were in a patient with urosepsis.

Ten adverse events of special interest occurred in eight patients, including one case of hypotension, three cases of hyponatremia, and six cases of hyperkalemia.

Potassium levels ranged from 6.0 to 6.3 mmol/L (6.0-6.3 mEq/L) in three patients and between 5.5 and 5.9 mmol/L (5.5-5.9 mEq/L) on at least two consecutive occasions in three others. Four of the patients were able to resume baxdrostat and complete the trial, whereas two patients discontinued treatment, one of whom was the patient with urosepsis.

Dr. Freeman pointed out that the study population was relatively diverse, with 33%-48% of participants of Hispanic or Latinx ethnicity and 23%-32% being Black.

At baseline, all patients had a seated blood pressure of at least 130/80 mm Hg (average 147.8/87.9 mm Hg) on a background therapy that included a diuretic in 100%, an agent targeting the renin-angiotensin-aldosterone system in 91%-96%, a beta-blocker in 52%-68%, and a calcium channel blocker in 64%-70%.

The study was not designed to test the benefits and risks of aldosterone synthase inhibition beyond 12 weeks and baxdrostat was not compared to alternative antihypertensives, he said. Additional limitations are that medication adherence was based on pill counts rather than drug analysis and enrolling only patients with an estimated glomerular filtration rate over 45 mL/min per 1.73m² reduced the likelihood of hyperkalemia and other adverse events.

Nevertheless, “we think that these data suggest that baxdrostat has the potential to treat disorders associated with aldosterone excess, including hypertension and primary hyperaldosteronism,” Dr. Freeman said.

The intention is to carry the drug forward into additional phase 2 studies in chronic kidney disease and to begin a phase 3 study in hypertension in 2023, he noted.

The study was funded by CinCor Pharma. Dr. Freeman and three coauthors are employees of CinCor and receive stock-based compensation. The remaining authors have a financial relationship with CinRx Pharma, which has an equity stake in CinCor. Dr. Oparil reports grant/research support from Bayer, Higi, and Novartis; and serving on the scientific advisory board/expert committee for CinCor Pharma and Preventric Diagnostics.

A version of this article first appeared on Medscape.com.

CHICAGO – An investigational aldosterone synthase inhibitor could be an effective new treatment to reduce blood pressure in patients with treatment-resistant hypertension, reslts of a phase 2 study suggest.

The BrigHTN trial showed systolic blood pressure fell by an average of 20.3 mm Hg, 17.5 mm Hg, and 12.1 mm Hg with baxdrostat 2 mg, 1 mg, and 0.5 mg after 12 weeks follow-up in 248 patients unable to achieve target blood pressure on stable doses of at least three antihypertensive agents, including a diuretic.

After adjustment for the –9.4 mm Hg change observed in the placebo group, there was a statistically significant difference of 11.0 mm Hg in the 2-mg baxdrostat group (P = .0001) and of 8.1 mm Hg in the 1-mg baxdrostat group (P = .003).

The adjusted change in diastolic blood pressure was significant only for the 2-mg dose (–5.2 mm Hg; P = .004).

Once-daily oral baxdrostat had an acceptable side-effect profile and no patients died.

The study, which was stopped early after meeting criteria for overwhelming efficacy, was presented in the final late-breaking science session at the American Heart Association scientific sessions and published simultaneously in the New England Journal of Medicine.
 

Threading the needle

For at least 20 years, researchers have tried to create a drug that would lower aldosterone levels directly by inhibiting hormone synthesis rather than blocking the mineralocorticoid receptor.

What’s made this extraordinarily difficult is that the enzyme that makes aldosterone synthase and the enzyme required for cortisol synthase, 11-beta-hydroxylase, are 93% sequence similar. Baxdrostat, however, is able to selectively block aldosterone synthase, and thus the production of aldosterone, without also blocking the production of cortisol, explained Mason W. Freeman, MD, lead author of the study and executive vice president of clinical development at CinCor Pharma, which is developing the agent.

“We have beautiful biomarker evidence of not only blood pressure lowering but the mechanism by which that blood pressure reduction is occurring,” he said.

Over 12 weeks of follow-up in the new study, the use of baxdrostat led to decreases in serum aldosterone levels ranging from 3.0 ng/dL with the 0.5-mg dose to 4.9 ng/dL with the 2-mg dose. The 24-hour urinary aldosterone levels decreased with all three doses tested.

Baxdrostat increased plasma renin activity by 3.6, 5.0, and 13.8 mg/mL per hr with the 0.5, 1.0, and 2.0 mg doses, respectively, an indicator of its effect on lowering salt and fluid retention, Dr. Freeman said. Serum cortisol levels were not reduced in any of the baxdrostat groups throughout the study.
 

‘A bright future’

“It seems to have a bright future in the area of resistant hypertension, particularly in patients who are producing too much aldosterone,” said Suzanne Oparil, MD, invited discussant for the study and director of the Vascular Biology and Hypertension program at the University of Alabama at Birmingham.

She noted that aldosterone is a major contributor to the pathogenesis of resistant hypertension, which afflicts about 20% of the hypertensive population. Aldosterone antagonists are considered by many to be the best add-on treatment for resistant hypertension and do lower blood pressure.

“But they have major problems,” Dr. Oparil added. “Spironolactone, for example, causes hyperkalemia in many patients and adverse effects such as gynecomastia, erectile dysfunction, and feminization.”

Baxdrostat was well tolerated with no serious adverse events deemed related to treatment, Dr. Freeman reported. A total of 18 serious adverse events occurred in 10 patients, 6 of which were in a patient with urosepsis.

Ten adverse events of special interest occurred in eight patients, including one case of hypotension, three cases of hyponatremia, and six cases of hyperkalemia.

Potassium levels ranged from 6.0 to 6.3 mmol/L (6.0-6.3 mEq/L) in three patients and between 5.5 and 5.9 mmol/L (5.5-5.9 mEq/L) on at least two consecutive occasions in three others. Four of the patients were able to resume baxdrostat and complete the trial, whereas two patients discontinued treatment, one of whom was the patient with urosepsis.

Dr. Freeman pointed out that the study population was relatively diverse, with 33%-48% of participants of Hispanic or Latinx ethnicity and 23%-32% being Black.

At baseline, all patients had a seated blood pressure of at least 130/80 mm Hg (average 147.8/87.9 mm Hg) on a background therapy that included a diuretic in 100%, an agent targeting the renin-angiotensin-aldosterone system in 91%-96%, a beta-blocker in 52%-68%, and a calcium channel blocker in 64%-70%.

The study was not designed to test the benefits and risks of aldosterone synthase inhibition beyond 12 weeks and baxdrostat was not compared to alternative antihypertensives, he said. Additional limitations are that medication adherence was based on pill counts rather than drug analysis and enrolling only patients with an estimated glomerular filtration rate over 45 mL/min per 1.73m² reduced the likelihood of hyperkalemia and other adverse events.

Nevertheless, “we think that these data suggest that baxdrostat has the potential to treat disorders associated with aldosterone excess, including hypertension and primary hyperaldosteronism,” Dr. Freeman said.

The intention is to carry the drug forward into additional phase 2 studies in chronic kidney disease and to begin a phase 3 study in hypertension in 2023, he noted.

The study was funded by CinCor Pharma. Dr. Freeman and three coauthors are employees of CinCor and receive stock-based compensation. The remaining authors have a financial relationship with CinRx Pharma, which has an equity stake in CinCor. Dr. Oparil reports grant/research support from Bayer, Higi, and Novartis; and serving on the scientific advisory board/expert committee for CinCor Pharma and Preventric Diagnostics.

A version of this article first appeared on Medscape.com.

CHICAGO – An investigational aldosterone synthase inhibitor could be an effective new treatment to reduce blood pressure in patients with treatment-resistant hypertension, reslts of a phase 2 study suggest.

The BrigHTN trial showed systolic blood pressure fell by an average of 20.3 mm Hg, 17.5 mm Hg, and 12.1 mm Hg with baxdrostat 2 mg, 1 mg, and 0.5 mg after 12 weeks follow-up in 248 patients unable to achieve target blood pressure on stable doses of at least three antihypertensive agents, including a diuretic.

After adjustment for the –9.4 mm Hg change observed in the placebo group, there was a statistically significant difference of 11.0 mm Hg in the 2-mg baxdrostat group (P = .0001) and of 8.1 mm Hg in the 1-mg baxdrostat group (P = .003).

The adjusted change in diastolic blood pressure was significant only for the 2-mg dose (–5.2 mm Hg; P = .004).

Once-daily oral baxdrostat had an acceptable side-effect profile and no patients died.

The study, which was stopped early after meeting criteria for overwhelming efficacy, was presented in the final late-breaking science session at the American Heart Association scientific sessions and published simultaneously in the New England Journal of Medicine.
 

Threading the needle

For at least 20 years, researchers have tried to create a drug that would lower aldosterone levels directly by inhibiting hormone synthesis rather than blocking the mineralocorticoid receptor.

What’s made this extraordinarily difficult is that the enzyme that makes aldosterone synthase and the enzyme required for cortisol synthase, 11-beta-hydroxylase, are 93% sequence similar. Baxdrostat, however, is able to selectively block aldosterone synthase, and thus the production of aldosterone, without also blocking the production of cortisol, explained Mason W. Freeman, MD, lead author of the study and executive vice president of clinical development at CinCor Pharma, which is developing the agent.

“We have beautiful biomarker evidence of not only blood pressure lowering but the mechanism by which that blood pressure reduction is occurring,” he said.

Over 12 weeks of follow-up in the new study, the use of baxdrostat led to decreases in serum aldosterone levels ranging from 3.0 ng/dL with the 0.5-mg dose to 4.9 ng/dL with the 2-mg dose. The 24-hour urinary aldosterone levels decreased with all three doses tested.

Baxdrostat increased plasma renin activity by 3.6, 5.0, and 13.8 mg/mL per hr with the 0.5, 1.0, and 2.0 mg doses, respectively, an indicator of its effect on lowering salt and fluid retention, Dr. Freeman said. Serum cortisol levels were not reduced in any of the baxdrostat groups throughout the study.
 

‘A bright future’

“It seems to have a bright future in the area of resistant hypertension, particularly in patients who are producing too much aldosterone,” said Suzanne Oparil, MD, invited discussant for the study and director of the Vascular Biology and Hypertension program at the University of Alabama at Birmingham.

She noted that aldosterone is a major contributor to the pathogenesis of resistant hypertension, which afflicts about 20% of the hypertensive population. Aldosterone antagonists are considered by many to be the best add-on treatment for resistant hypertension and do lower blood pressure.

“But they have major problems,” Dr. Oparil added. “Spironolactone, for example, causes hyperkalemia in many patients and adverse effects such as gynecomastia, erectile dysfunction, and feminization.”

Baxdrostat was well tolerated with no serious adverse events deemed related to treatment, Dr. Freeman reported. A total of 18 serious adverse events occurred in 10 patients, 6 of which were in a patient with urosepsis.

Ten adverse events of special interest occurred in eight patients, including one case of hypotension, three cases of hyponatremia, and six cases of hyperkalemia.

Potassium levels ranged from 6.0 to 6.3 mmol/L (6.0-6.3 mEq/L) in three patients and between 5.5 and 5.9 mmol/L (5.5-5.9 mEq/L) on at least two consecutive occasions in three others. Four of the patients were able to resume baxdrostat and complete the trial, whereas two patients discontinued treatment, one of whom was the patient with urosepsis.

Dr. Freeman pointed out that the study population was relatively diverse, with 33%-48% of participants of Hispanic or Latinx ethnicity and 23%-32% being Black.

At baseline, all patients had a seated blood pressure of at least 130/80 mm Hg (average 147.8/87.9 mm Hg) on a background therapy that included a diuretic in 100%, an agent targeting the renin-angiotensin-aldosterone system in 91%-96%, a beta-blocker in 52%-68%, and a calcium channel blocker in 64%-70%.

The study was not designed to test the benefits and risks of aldosterone synthase inhibition beyond 12 weeks and baxdrostat was not compared to alternative antihypertensives, he said. Additional limitations are that medication adherence was based on pill counts rather than drug analysis and enrolling only patients with an estimated glomerular filtration rate over 45 mL/min per 1.73m² reduced the likelihood of hyperkalemia and other adverse events.

Nevertheless, “we think that these data suggest that baxdrostat has the potential to treat disorders associated with aldosterone excess, including hypertension and primary hyperaldosteronism,” Dr. Freeman said.

The intention is to carry the drug forward into additional phase 2 studies in chronic kidney disease and to begin a phase 3 study in hypertension in 2023, he noted.

The study was funded by CinCor Pharma. Dr. Freeman and three coauthors are employees of CinCor and receive stock-based compensation. The remaining authors have a financial relationship with CinRx Pharma, which has an equity stake in CinCor. Dr. Oparil reports grant/research support from Bayer, Higi, and Novartis; and serving on the scientific advisory board/expert committee for CinCor Pharma and Preventric Diagnostics.

A version of this article first appeared on Medscape.com.