HCV Hub

Individuals with hepatitis C infection who achieved a sustained virologic response (SVR) to treatment with direct-acting antivirals had a significantly lower risk of hepatocellular carcinoma (HCC), a new study suggests.

A retrospective cohort study of 22,500 U.S. veterans with hepatitis C who had been treated with direct-acting antivirals (DAAs) found those with an SVR had a 72% lower risk of HCC, compared with those who did not achieve that response (hazard ratio, 0.28; 95% confidence interval, 0.22-0.36; P less than .0001), even after adjusting for demographics as well as clinical and health utilization factors.

s-c-s/Thinkstock

Individuals with hepatitis C infection who achieved a sustained virologic response (SVR) to treatment with direct-acting antivirals had a significantly lower risk of hepatocellular carcinoma (HCC), a new study suggests.

A retrospective cohort study of 22,500 U.S. veterans with hepatitis C who had been treated with direct-acting antivirals (DAAs) found those with an SVR had a 72% lower risk of HCC, compared with those who did not achieve that response (hazard ratio, 0.28; 95% confidence interval, 0.22-0.36; P less than .0001), even after adjusting for demographics as well as clinical and health utilization factors.

s-c-s/Thinkstock

Individuals with hepatitis C infection who achieved a sustained virologic response (SVR) to treatment with direct-acting antivirals had a significantly lower risk of hepatocellular carcinoma (HCC), a new study suggests.

A retrospective cohort study of 22,500 U.S. veterans with hepatitis C who had been treated with direct-acting antivirals (DAAs) found those with an SVR had a 72% lower risk of HCC, compared with those who did not achieve that response (hazard ratio, 0.28; 95% confidence interval, 0.22-0.36; P less than .0001), even after adjusting for demographics as well as clinical and health utilization factors.

s-c-s/Thinkstock

The baby looked perfect: healthy term male, weight at the 60th percentile, normal exam. The mother, a 26-year-old diagnosed with hepatitis C virus (HCV) infection during her pregnancy, looked alternately hopeful and horrified as I explained what implications her infection could have for her baby.

“Most babies will be fine,” I explained. “Of all mothers with hepatitis C infection, just under 6% will pass the infection on to their babies.” Transmission rates are twice as high in infants born to women with high HCV viral loads or those coinfected with HIV. The risk of transmission from women with undetectable HCV RNA is almost zero. Unfortunately, this mother did not fall into that category.

We need to know the scope of the problem

Since 2015, Kentucky has mandated reporting of all HCV-infected pregnant women and children through age 60 months, as well as all infants born to all HCV-infected women. At present though, there is substantial variability in state reporting requirements. We likely need a standardized case definition for perinatal HCV and national reporting criteria.

We need some clear guidance about testing during pregnancy

This should come from public health authorities, the American Academy of Pediatrics and the American College of Obstetricians and Gynecologists.

Jonathan Mermin, MD, director of CDC’s National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, has said, “Women are screened throughout pregnancy for many conditions that threaten their health. An expectant mother at risk for hepatitis C deserves to be tested. Knowing her status is the only way she can access the best hepatitis care and treatment – both for herself and her baby.” Yet, routine hepatitis C testing is not recommended during pregnancy, in part because there are no established interventions to prevent mother-to-child transmission of HCV. Instead, women are to be screened for risk factors and tested if they are present. As we learned with hepatitis B and HIV, risk factor screening is hard and misses individuals who are infected.

We need to ensure that HCV-exposed infants are identified and followed appropriately.

In a study of HCV-exposed infants born to women in Philadelphia, 84% did not receive adequate testing for HCV infection. In human terms, 537 children were born to HCV-positive mothers during the study period and 4 of 84 (5%) children tested were found to be infected. Assuming that 5% of HCV-exposed infants will develop chronic infection, 23 additional children were undiagnosed and, therefore, were not being followed for potential sequelae.

HCV-infected mothers in this study were more likely than non-infected mothers to be socioeconomically disadvantaged – specifically, unmarried, less educated, and publicly insured – suggesting that access to care may have played a role. When you add in drug use as a common risk factor for HCV infection, it is easy to understand why some at-risk infants are lost to follow-up.

Investigators in the Philadelphia study suggested that there might be more to the story. They proposed that pediatricians might be unaware of the need for testing because they had not been alerted to the mother’s HCV status by the obstetrician, the birthing hospital, or the mother herself. Finally, they theorized that many pediatricians “may be unaware or skeptical of the guidelines for testing children exposed to HCV.” This is a problem that we can solve.

I finished the visit with this mother by reassuring her that she could breastfeed her infant as planned as long as she did not have cracked or bleeding nipples. I also explained the schedule for testing. A 2002 National Institutes of Health consensus statement recommends that infants perinatally exposed to HCV have two HCV RNA tests between 2 and 6 months of age and/or be tested for HCV antibodies after 15 months. North American Society for Pediatric Gastroenterology, Hepatology and Nutrition (NASPGHAN) Practice Guidelines for Diagnosis and Management of Hepatitis C Infection in Infants, Children, and Adolescents recommend testing for HCV antibodies at 18 months of age (J Pediatr Gastroenterol Nutr. 2012 Jun;54[6]:838-55). If a family requests earlier testing, a serum HCV RNA test can be done as early as 2 months of age. If positive, NASPGHAN recommends testing after 12 months of age to evaluate for chronic infection.

My practice has adopted the National Institutes of Health consensus statement approach because many of the families we see experience significant anxiety about the diagnosis, and this mother was no exception. As noted in the expert guidelines, this was a situation in which “early exclusion of HCV infection is reassuring and may be worth the added expense.”

“So first test at 2 months?” she asked. “Until then, we can’t do anything but wait?”

It is estimated that there are 23,000 to 46,000 U.S. children living with HCV. The wait for pediatricians is over. HCV is a pediatric disease now, and we need to educate ourselves about diagnosis and management. A first step might be to begin asking expectant mothers and the mothers of newborns if they know their HCV status.

Dr. Bryant is a pediatrician specializing in infectious diseases at the University of Louisville (Ky.) and Norton Children’s Hospital, also in Louisville. She said she had no relevant financial disclosures. Email her at pdnews@frontlinemedcom.com.

The baby looked perfect: healthy term male, weight at the 60th percentile, normal exam. The mother, a 26-year-old diagnosed with hepatitis C virus (HCV) infection during her pregnancy, looked alternately hopeful and horrified as I explained what implications her infection could have for her baby.

“Most babies will be fine,” I explained. “Of all mothers with hepatitis C infection, just under 6% will pass the infection on to their babies.” Transmission rates are twice as high in infants born to women with high HCV viral loads or those coinfected with HIV. The risk of transmission from women with undetectable HCV RNA is almost zero. Unfortunately, this mother did not fall into that category.

We need to know the scope of the problem

Since 2015, Kentucky has mandated reporting of all HCV-infected pregnant women and children through age 60 months, as well as all infants born to all HCV-infected women. At present though, there is substantial variability in state reporting requirements. We likely need a standardized case definition for perinatal HCV and national reporting criteria.

We need some clear guidance about testing during pregnancy

This should come from public health authorities, the American Academy of Pediatrics and the American College of Obstetricians and Gynecologists.

Jonathan Mermin, MD, director of CDC’s National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, has said, “Women are screened throughout pregnancy for many conditions that threaten their health. An expectant mother at risk for hepatitis C deserves to be tested. Knowing her status is the only way she can access the best hepatitis care and treatment – both for herself and her baby.” Yet, routine hepatitis C testing is not recommended during pregnancy, in part because there are no established interventions to prevent mother-to-child transmission of HCV. Instead, women are to be screened for risk factors and tested if they are present. As we learned with hepatitis B and HIV, risk factor screening is hard and misses individuals who are infected.

We need to ensure that HCV-exposed infants are identified and followed appropriately.

In a study of HCV-exposed infants born to women in Philadelphia, 84% did not receive adequate testing for HCV infection. In human terms, 537 children were born to HCV-positive mothers during the study period and 4 of 84 (5%) children tested were found to be infected. Assuming that 5% of HCV-exposed infants will develop chronic infection, 23 additional children were undiagnosed and, therefore, were not being followed for potential sequelae.

HCV-infected mothers in this study were more likely than non-infected mothers to be socioeconomically disadvantaged – specifically, unmarried, less educated, and publicly insured – suggesting that access to care may have played a role. When you add in drug use as a common risk factor for HCV infection, it is easy to understand why some at-risk infants are lost to follow-up.

Investigators in the Philadelphia study suggested that there might be more to the story. They proposed that pediatricians might be unaware of the need for testing because they had not been alerted to the mother’s HCV status by the obstetrician, the birthing hospital, or the mother herself. Finally, they theorized that many pediatricians “may be unaware or skeptical of the guidelines for testing children exposed to HCV.” This is a problem that we can solve.

I finished the visit with this mother by reassuring her that she could breastfeed her infant as planned as long as she did not have cracked or bleeding nipples. I also explained the schedule for testing. A 2002 National Institutes of Health consensus statement recommends that infants perinatally exposed to HCV have two HCV RNA tests between 2 and 6 months of age and/or be tested for HCV antibodies after 15 months. North American Society for Pediatric Gastroenterology, Hepatology and Nutrition (NASPGHAN) Practice Guidelines for Diagnosis and Management of Hepatitis C Infection in Infants, Children, and Adolescents recommend testing for HCV antibodies at 18 months of age (J Pediatr Gastroenterol Nutr. 2012 Jun;54[6]:838-55). If a family requests earlier testing, a serum HCV RNA test can be done as early as 2 months of age. If positive, NASPGHAN recommends testing after 12 months of age to evaluate for chronic infection.

My practice has adopted the National Institutes of Health consensus statement approach because many of the families we see experience significant anxiety about the diagnosis, and this mother was no exception. As noted in the expert guidelines, this was a situation in which “early exclusion of HCV infection is reassuring and may be worth the added expense.”

“So first test at 2 months?” she asked. “Until then, we can’t do anything but wait?”

It is estimated that there are 23,000 to 46,000 U.S. children living with HCV. The wait for pediatricians is over. HCV is a pediatric disease now, and we need to educate ourselves about diagnosis and management. A first step might be to begin asking expectant mothers and the mothers of newborns if they know their HCV status.

Dr. Bryant is a pediatrician specializing in infectious diseases at the University of Louisville (Ky.) and Norton Children’s Hospital, also in Louisville. She said she had no relevant financial disclosures. Email her at pdnews@frontlinemedcom.com.

The baby looked perfect: healthy term male, weight at the 60th percentile, normal exam. The mother, a 26-year-old diagnosed with hepatitis C virus (HCV) infection during her pregnancy, looked alternately hopeful and horrified as I explained what implications her infection could have for her baby.

“Most babies will be fine,” I explained. “Of all mothers with hepatitis C infection, just under 6% will pass the infection on to their babies.” Transmission rates are twice as high in infants born to women with high HCV viral loads or those coinfected with HIV. The risk of transmission from women with undetectable HCV RNA is almost zero. Unfortunately, this mother did not fall into that category.

We need to know the scope of the problem

Since 2015, Kentucky has mandated reporting of all HCV-infected pregnant women and children through age 60 months, as well as all infants born to all HCV-infected women. At present though, there is substantial variability in state reporting requirements. We likely need a standardized case definition for perinatal HCV and national reporting criteria.

We need some clear guidance about testing during pregnancy

This should come from public health authorities, the American Academy of Pediatrics and the American College of Obstetricians and Gynecologists.

Jonathan Mermin, MD, director of CDC’s National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, has said, “Women are screened throughout pregnancy for many conditions that threaten their health. An expectant mother at risk for hepatitis C deserves to be tested. Knowing her status is the only way she can access the best hepatitis care and treatment – both for herself and her baby.” Yet, routine hepatitis C testing is not recommended during pregnancy, in part because there are no established interventions to prevent mother-to-child transmission of HCV. Instead, women are to be screened for risk factors and tested if they are present. As we learned with hepatitis B and HIV, risk factor screening is hard and misses individuals who are infected.

We need to ensure that HCV-exposed infants are identified and followed appropriately.

In a study of HCV-exposed infants born to women in Philadelphia, 84% did not receive adequate testing for HCV infection. In human terms, 537 children were born to HCV-positive mothers during the study period and 4 of 84 (5%) children tested were found to be infected. Assuming that 5% of HCV-exposed infants will develop chronic infection, 23 additional children were undiagnosed and, therefore, were not being followed for potential sequelae.

HCV-infected mothers in this study were more likely than non-infected mothers to be socioeconomically disadvantaged – specifically, unmarried, less educated, and publicly insured – suggesting that access to care may have played a role. When you add in drug use as a common risk factor for HCV infection, it is easy to understand why some at-risk infants are lost to follow-up.

Investigators in the Philadelphia study suggested that there might be more to the story. They proposed that pediatricians might be unaware of the need for testing because they had not been alerted to the mother’s HCV status by the obstetrician, the birthing hospital, or the mother herself. Finally, they theorized that many pediatricians “may be unaware or skeptical of the guidelines for testing children exposed to HCV.” This is a problem that we can solve.

I finished the visit with this mother by reassuring her that she could breastfeed her infant as planned as long as she did not have cracked or bleeding nipples. I also explained the schedule for testing. A 2002 National Institutes of Health consensus statement recommends that infants perinatally exposed to HCV have two HCV RNA tests between 2 and 6 months of age and/or be tested for HCV antibodies after 15 months. North American Society for Pediatric Gastroenterology, Hepatology and Nutrition (NASPGHAN) Practice Guidelines for Diagnosis and Management of Hepatitis C Infection in Infants, Children, and Adolescents recommend testing for HCV antibodies at 18 months of age (J Pediatr Gastroenterol Nutr. 2012 Jun;54[6]:838-55). If a family requests earlier testing, a serum HCV RNA test can be done as early as 2 months of age. If positive, NASPGHAN recommends testing after 12 months of age to evaluate for chronic infection.

My practice has adopted the National Institutes of Health consensus statement approach because many of the families we see experience significant anxiety about the diagnosis, and this mother was no exception. As noted in the expert guidelines, this was a situation in which “early exclusion of HCV infection is reassuring and may be worth the added expense.”

“So first test at 2 months?” she asked. “Until then, we can’t do anything but wait?”

It is estimated that there are 23,000 to 46,000 U.S. children living with HCV. The wait for pediatricians is over. HCV is a pediatric disease now, and we need to educate ourselves about diagnosis and management. A first step might be to begin asking expectant mothers and the mothers of newborns if they know their HCV status.

Dr. Bryant is a pediatrician specializing in infectious diseases at the University of Louisville (Ky.) and Norton Children’s Hospital, also in Louisville. She said she had no relevant financial disclosures. Email her at pdnews@frontlinemedcom.com.

MADRID – Roughly one in four children with vertically transmitted hepatitis C virus (HCV)/HIV coinfection will progress to advanced hepatic fibrosis by age 20 years despite treatment with pegylated interferon plus ribavirin, Carolina Fernández McPhee, MD, reported at the annual meeting of the European Society for Paediatric Infectious Diseases.

This rate was nearly five times higher than in matched children with vertically acquired HCV monoinfection in a multicenter retrospective study, according to Dr. McPhee of Hospital General Universitario Gregorio Marañón in Madrid.

bjancin@frontlinemedcom.com

MADRID – Roughly one in four children with vertically transmitted hepatitis C virus (HCV)/HIV coinfection will progress to advanced hepatic fibrosis by age 20 years despite treatment with pegylated interferon plus ribavirin, Carolina Fernández McPhee, MD, reported at the annual meeting of the European Society for Paediatric Infectious Diseases.

This rate was nearly five times higher than in matched children with vertically acquired HCV monoinfection in a multicenter retrospective study, according to Dr. McPhee of Hospital General Universitario Gregorio Marañón in Madrid.

bjancin@frontlinemedcom.com

MADRID – Roughly one in four children with vertically transmitted hepatitis C virus (HCV)/HIV coinfection will progress to advanced hepatic fibrosis by age 20 years despite treatment with pegylated interferon plus ribavirin, Carolina Fernández McPhee, MD, reported at the annual meeting of the European Society for Paediatric Infectious Diseases.

This rate was nearly five times higher than in matched children with vertically acquired HCV monoinfection in a multicenter retrospective study, according to Dr. McPhee of Hospital General Universitario Gregorio Marañón in Madrid.

bjancin@frontlinemedcom.com

The prevalence of hepatitis C virus (HCV) varies considerably by state, and the same can be said for the state laws and policies attempting to decrease that prevalence, according to an assessment by the Centers for Disease Control and Prevention.

In 2015, incidence of acute HCV infection exceeded the national average of 0.8 per 100,000 population in 17 states, including seven with rates that at least doubled it, the report noted. New HCV infections have increased in recent years despite curative therapies “and known preventive measures to interrupt transmission.”

rfranki@frontlinemedcom.com

The prevalence of hepatitis C virus (HCV) varies considerably by state, and the same can be said for the state laws and policies attempting to decrease that prevalence, according to an assessment by the Centers for Disease Control and Prevention.

In 2015, incidence of acute HCV infection exceeded the national average of 0.8 per 100,000 population in 17 states, including seven with rates that at least doubled it, the report noted. New HCV infections have increased in recent years despite curative therapies “and known preventive measures to interrupt transmission.”

rfranki@frontlinemedcom.com

The prevalence of hepatitis C virus (HCV) varies considerably by state, and the same can be said for the state laws and policies attempting to decrease that prevalence, according to an assessment by the Centers for Disease Control and Prevention.

In 2015, incidence of acute HCV infection exceeded the national average of 0.8 per 100,000 population in 17 states, including seven with rates that at least doubled it, the report noted. New HCV infections have increased in recent years despite curative therapies “and known preventive measures to interrupt transmission.”

rfranki@frontlinemedcom.com

The incidence of hepatitis C virus infection in reproductive-age women has doubled between 2006 and 2014 while the number of acute cases increased more than threefold, according to data published in the Annals of Internal Medicine.

Researchers analyzed data from the National Notifiable Diseases Surveillance System (NNDSS) from 2006 to 2014 and the Quest Diagnostics Health Trends national database from 2011 to 2014, finding 425,322 women with confirmed HCV infection, 40.4% of whom were aged 15 to 44 years.

s-c-s/Thinkstock

The incidence of hepatitis C virus infection in reproductive-age women has doubled between 2006 and 2014 while the number of acute cases increased more than threefold, according to data published in the Annals of Internal Medicine.

Researchers analyzed data from the National Notifiable Diseases Surveillance System (NNDSS) from 2006 to 2014 and the Quest Diagnostics Health Trends national database from 2011 to 2014, finding 425,322 women with confirmed HCV infection, 40.4% of whom were aged 15 to 44 years.

s-c-s/Thinkstock

The incidence of hepatitis C virus infection in reproductive-age women has doubled between 2006 and 2014 while the number of acute cases increased more than threefold, according to data published in the Annals of Internal Medicine.

Researchers analyzed data from the National Notifiable Diseases Surveillance System (NNDSS) from 2006 to 2014 and the Quest Diagnostics Health Trends national database from 2011 to 2014, finding 425,322 women with confirmed HCV infection, 40.4% of whom were aged 15 to 44 years.

s-c-s/Thinkstock

Hepatitis B and C appear to raise the risk of later Parkinson’s disease (PD), according to a report published in Neurology.

The etiology of Parkinson’s disease is complex, and several factors, including environmental toxins and head trauma, have been proposed that may increase risk for the disorder. Two recent epidemiologic studies in Taiwan found an association between hepatitis C and Parkinson’s risk, said Julia Pakpoor, BM BCh, of the Unit of Health-Care Epidemiology, Nuffield Department of Population Health, University of Oxford (England), and her associates.

To further explore that association, the investigators performed a retrospective cohort study using data from National Health Service hospitals across England for 1999-2011. They assessed the risk for developing PD among 21,633 people with hepatitis B, 48,428 with hepatitis C, 6,225 with autoimmune hepatitis, 4,234 with chronic active hepatitis, 19,870 with HIV, and 6,132,124 control subjects with other disorders.

The risk of developing PD was elevated for only 1 or more years following hospitalization for hepatitis B (relative risk, 1.76) or hepatitis C (RR, 1.51). “These findings may be explained by a specific aspect of viral hepatitis (rather than a general hepatic inflammatory process or general use of antivirals), but whether this reflects shared disease mechanisms, shared genetic or environmental susceptibility, sequelae of viral hepatitis per se, or a consequence of treatment remains to be determined,” Dr. Pakpoor and her associates said (Neurology. 2017;88:1-4).

The reason for this association is not yet known. “Neurotropic features of hepatitis C have been described previously and include the potential for cognitive impairment, independent of hepatic encephalopathy. Further, all essential hepatitis C virus receptors have been shown to be expressed on the brain microvascular endothelium. … suggesting one mechanism by which the virus may affect the CNS,” they noted.

In addition, parkinsonism has been described as an adverse effect of treatment with interferon and ribavirin, which are commonly used in hepatitis C infection. Parkinsonism also is known to develop in association with liver cirrhosis, and cirrhosis status was not available for the members of this study cohort.

More studies are needed to confirm this association and verify that it is causal. Such research will also provide insight into pathophysiologic pathways of PD, “which may be important to understanding the development of PD more broadly,” Dr. Pakpoor and her associates said.

The English National Institute for Health Research supported the study. Dr. Pakpoor and her associates reported having no relevant financial disclosures.

Hepatitis B and C appear to raise the risk of later Parkinson’s disease (PD), according to a report published in Neurology.

The etiology of Parkinson’s disease is complex, and several factors, including environmental toxins and head trauma, have been proposed that may increase risk for the disorder. Two recent epidemiologic studies in Taiwan found an association between hepatitis C and Parkinson’s risk, said Julia Pakpoor, BM BCh, of the Unit of Health-Care Epidemiology, Nuffield Department of Population Health, University of Oxford (England), and her associates.

To further explore that association, the investigators performed a retrospective cohort study using data from National Health Service hospitals across England for 1999-2011. They assessed the risk for developing PD among 21,633 people with hepatitis B, 48,428 with hepatitis C, 6,225 with autoimmune hepatitis, 4,234 with chronic active hepatitis, 19,870 with HIV, and 6,132,124 control subjects with other disorders.

The risk of developing PD was elevated for only 1 or more years following hospitalization for hepatitis B (relative risk, 1.76) or hepatitis C (RR, 1.51). “These findings may be explained by a specific aspect of viral hepatitis (rather than a general hepatic inflammatory process or general use of antivirals), but whether this reflects shared disease mechanisms, shared genetic or environmental susceptibility, sequelae of viral hepatitis per se, or a consequence of treatment remains to be determined,” Dr. Pakpoor and her associates said (Neurology. 2017;88:1-4).

The reason for this association is not yet known. “Neurotropic features of hepatitis C have been described previously and include the potential for cognitive impairment, independent of hepatic encephalopathy. Further, all essential hepatitis C virus receptors have been shown to be expressed on the brain microvascular endothelium. … suggesting one mechanism by which the virus may affect the CNS,” they noted.

In addition, parkinsonism has been described as an adverse effect of treatment with interferon and ribavirin, which are commonly used in hepatitis C infection. Parkinsonism also is known to develop in association with liver cirrhosis, and cirrhosis status was not available for the members of this study cohort.

More studies are needed to confirm this association and verify that it is causal. Such research will also provide insight into pathophysiologic pathways of PD, “which may be important to understanding the development of PD more broadly,” Dr. Pakpoor and her associates said.

The English National Institute for Health Research supported the study. Dr. Pakpoor and her associates reported having no relevant financial disclosures.

Hepatitis B and C appear to raise the risk of later Parkinson’s disease (PD), according to a report published in Neurology.

The etiology of Parkinson’s disease is complex, and several factors, including environmental toxins and head trauma, have been proposed that may increase risk for the disorder. Two recent epidemiologic studies in Taiwan found an association between hepatitis C and Parkinson’s risk, said Julia Pakpoor, BM BCh, of the Unit of Health-Care Epidemiology, Nuffield Department of Population Health, University of Oxford (England), and her associates.

To further explore that association, the investigators performed a retrospective cohort study using data from National Health Service hospitals across England for 1999-2011. They assessed the risk for developing PD among 21,633 people with hepatitis B, 48,428 with hepatitis C, 6,225 with autoimmune hepatitis, 4,234 with chronic active hepatitis, 19,870 with HIV, and 6,132,124 control subjects with other disorders.

The risk of developing PD was elevated for only 1 or more years following hospitalization for hepatitis B (relative risk, 1.76) or hepatitis C (RR, 1.51). “These findings may be explained by a specific aspect of viral hepatitis (rather than a general hepatic inflammatory process or general use of antivirals), but whether this reflects shared disease mechanisms, shared genetic or environmental susceptibility, sequelae of viral hepatitis per se, or a consequence of treatment remains to be determined,” Dr. Pakpoor and her associates said (Neurology. 2017;88:1-4).

The reason for this association is not yet known. “Neurotropic features of hepatitis C have been described previously and include the potential for cognitive impairment, independent of hepatic encephalopathy. Further, all essential hepatitis C virus receptors have been shown to be expressed on the brain microvascular endothelium. … suggesting one mechanism by which the virus may affect the CNS,” they noted.

In addition, parkinsonism has been described as an adverse effect of treatment with interferon and ribavirin, which are commonly used in hepatitis C infection. Parkinsonism also is known to develop in association with liver cirrhosis, and cirrhosis status was not available for the members of this study cohort.

More studies are needed to confirm this association and verify that it is causal. Such research will also provide insight into pathophysiologic pathways of PD, “which may be important to understanding the development of PD more broadly,” Dr. Pakpoor and her associates said.

The English National Institute for Health Research supported the study. Dr. Pakpoor and her associates reported having no relevant financial disclosures.

Twelve weeks of combination therapy with elbasvir and grazoprevir (EBR/GZR) achieved sustained virologic response in 98% of treatment-naive patients with compensated cirrhosis and chronic hepatitis C (HCV) genotype 1, 4, or 6 infections, and in 89% of treatment-experienced patients, according to a pooled analysis of six industry-sponsored trials.

Concomitant ribavirin offered “no incremental benefit” for treatment-naive patients, while 16 or 18 weeks of EBR and GZR with ribavirin achieved SVR12 in 100% of treatment-experienced patients, wrote Ira M. Jacobson, MD, of Mount Sinai Beth Israel and Icahn School of Medicine at Mount Sinai, New York, and his associates. The report was published in the May issue of Gastroenterology (doi: 10.1053/j.gastro.2017.01.050).

Regardless of treatment history, genotype 1a patients with resistance-associated variants (RAV) in HCV nonstructural protein 5A (NS5A) needed ribavirin to achieve sustained virologic response (SVR) rates above 90%, the researchers emphasized. “Both patients with HCV genotype 1a infection with baseline RAVs who received 16 or 18 weeks of EBR/GZR and ribavirin achieved SVR12,” the researchers noted. Elbasvir is an HCV NS5A inhibitor, and GZR is an HCV NS3/4A protease inhibitor. In 2016, the Food and Drug Administration approved them in combination (Zepatier) for chronic genotype 1 and genotype 4 HCV. Studies have confirmed the benefits of treating HCV even when patients have cirrhosis, but they can be challenging to treat, especially if they have already failed a regimen that included a direct-acting antiviral agent, the investigators noted.

To explore the efficacy of EBR/GZR in compensated, Child-Pugh A cirrhosis, they studied 402 such patients with HCV genotype 1, 4, or 6 infections whose baseline HCV RNA level exceeded 10,000 IU. Patients had participated in one of six phase II/III clinical trials and had received EBR/GZR 50 mg/100 mg once daily for 12-18 weeks, with or without ribavirin (800-1400 mg/day based on body weight). Treatment-naive patients received 12 weeks of treatment, while treatment-experienced patients received 12, 16, or 18 weeks of treatment.

Twelve weeks of ribavirin did not boost SVR for either treatment-naive (90%) or treatment-experienced patients (91%), the researchers said. However, all 49 treatment-experienced patients who received EBR/GZR plus ribavirin for 16 or 18 weeks achieved SVR12, compared to 94% of patients who received EBR/GZR without ribavirin for 16 or 18 weeks.

Virologic failure was more common with HCV genotype 1a infections than with genotype 1b or 4 infection, especially if patients previously had not responded to interferon, the researchers noted. Eight of 11 (73%) patients with HCV genotype 1a infection and baseline NS5A RAVs achieved SVR12, compared with 98% of GT1a-infected patients without RAVs at baseline. But EBR/GZR was effective in various other subgroups, including patients with less than 100,000 platelets per microL, serum albumin below 3.5 g/dL, and FibroScan scores below 25 kPa. These findings suggest that EBR/GZR remains effective in patients with advanced compensated cirrhosis, the investigators said.

Most patients tolerated therapy, but six stopped treatment because of adverse events, including one episode of severe, possibly treatment-related abdominal pain. Also, four patients had late, asymptomatic rises in alanine aminotransferase (ALT) after first normalizing on treatment, and one patient stopped treatment because of grade 4 ALT elevation with eosinophilia. “There were no decompensation events in this generally healthy cirrhotic population, and no other evidence of declining liver function while on treatment,” the researchers added.

The integrated analysis was not prespecified, nor was it powered to compare outcomes between treatment arms. Only three patients had genotype 6 infection, and all were treatment-experienced. Only 23 patients had genotype 4 infection. Also, most patients had well-compensated cirrhosis. Finally, the trials varied in terms of how they defined cirrhosis, the investigators noted.

Merck, which funded the study, makes elbasvir and grazoprevir. The investigators acknowledged medical writing and editorial assistance from ApotheCom, which Merck funded. Dr. Jacobson disclosed consulting relationships and grant funding from Merck, AbbVie, Bristol-Myers Squibb, Gilead, Intercept, Janssen, and Trek.

Twelve weeks of combination therapy with elbasvir and grazoprevir (EBR/GZR) achieved sustained virologic response in 98% of treatment-naive patients with compensated cirrhosis and chronic hepatitis C (HCV) genotype 1, 4, or 6 infections, and in 89% of treatment-experienced patients, according to a pooled analysis of six industry-sponsored trials.

Concomitant ribavirin offered “no incremental benefit” for treatment-naive patients, while 16 or 18 weeks of EBR and GZR with ribavirin achieved SVR12 in 100% of treatment-experienced patients, wrote Ira M. Jacobson, MD, of Mount Sinai Beth Israel and Icahn School of Medicine at Mount Sinai, New York, and his associates. The report was published in the May issue of Gastroenterology (doi: 10.1053/j.gastro.2017.01.050).

Regardless of treatment history, genotype 1a patients with resistance-associated variants (RAV) in HCV nonstructural protein 5A (NS5A) needed ribavirin to achieve sustained virologic response (SVR) rates above 90%, the researchers emphasized. “Both patients with HCV genotype 1a infection with baseline RAVs who received 16 or 18 weeks of EBR/GZR and ribavirin achieved SVR12,” the researchers noted. Elbasvir is an HCV NS5A inhibitor, and GZR is an HCV NS3/4A protease inhibitor. In 2016, the Food and Drug Administration approved them in combination (Zepatier) for chronic genotype 1 and genotype 4 HCV. Studies have confirmed the benefits of treating HCV even when patients have cirrhosis, but they can be challenging to treat, especially if they have already failed a regimen that included a direct-acting antiviral agent, the investigators noted.

To explore the efficacy of EBR/GZR in compensated, Child-Pugh A cirrhosis, they studied 402 such patients with HCV genotype 1, 4, or 6 infections whose baseline HCV RNA level exceeded 10,000 IU. Patients had participated in one of six phase II/III clinical trials and had received EBR/GZR 50 mg/100 mg once daily for 12-18 weeks, with or without ribavirin (800-1400 mg/day based on body weight). Treatment-naive patients received 12 weeks of treatment, while treatment-experienced patients received 12, 16, or 18 weeks of treatment.

Twelve weeks of ribavirin did not boost SVR for either treatment-naive (90%) or treatment-experienced patients (91%), the researchers said. However, all 49 treatment-experienced patients who received EBR/GZR plus ribavirin for 16 or 18 weeks achieved SVR12, compared to 94% of patients who received EBR/GZR without ribavirin for 16 or 18 weeks.

Virologic failure was more common with HCV genotype 1a infections than with genotype 1b or 4 infection, especially if patients previously had not responded to interferon, the researchers noted. Eight of 11 (73%) patients with HCV genotype 1a infection and baseline NS5A RAVs achieved SVR12, compared with 98% of GT1a-infected patients without RAVs at baseline. But EBR/GZR was effective in various other subgroups, including patients with less than 100,000 platelets per microL, serum albumin below 3.5 g/dL, and FibroScan scores below 25 kPa. These findings suggest that EBR/GZR remains effective in patients with advanced compensated cirrhosis, the investigators said.

Most patients tolerated therapy, but six stopped treatment because of adverse events, including one episode of severe, possibly treatment-related abdominal pain. Also, four patients had late, asymptomatic rises in alanine aminotransferase (ALT) after first normalizing on treatment, and one patient stopped treatment because of grade 4 ALT elevation with eosinophilia. “There were no decompensation events in this generally healthy cirrhotic population, and no other evidence of declining liver function while on treatment,” the researchers added.

The integrated analysis was not prespecified, nor was it powered to compare outcomes between treatment arms. Only three patients had genotype 6 infection, and all were treatment-experienced. Only 23 patients had genotype 4 infection. Also, most patients had well-compensated cirrhosis. Finally, the trials varied in terms of how they defined cirrhosis, the investigators noted.

Merck, which funded the study, makes elbasvir and grazoprevir. The investigators acknowledged medical writing and editorial assistance from ApotheCom, which Merck funded. Dr. Jacobson disclosed consulting relationships and grant funding from Merck, AbbVie, Bristol-Myers Squibb, Gilead, Intercept, Janssen, and Trek.

Twelve weeks of combination therapy with elbasvir and grazoprevir (EBR/GZR) achieved sustained virologic response in 98% of treatment-naive patients with compensated cirrhosis and chronic hepatitis C (HCV) genotype 1, 4, or 6 infections, and in 89% of treatment-experienced patients, according to a pooled analysis of six industry-sponsored trials.

Concomitant ribavirin offered “no incremental benefit” for treatment-naive patients, while 16 or 18 weeks of EBR and GZR with ribavirin achieved SVR12 in 100% of treatment-experienced patients, wrote Ira M. Jacobson, MD, of Mount Sinai Beth Israel and Icahn School of Medicine at Mount Sinai, New York, and his associates. The report was published in the May issue of Gastroenterology (doi: 10.1053/j.gastro.2017.01.050).

Regardless of treatment history, genotype 1a patients with resistance-associated variants (RAV) in HCV nonstructural protein 5A (NS5A) needed ribavirin to achieve sustained virologic response (SVR) rates above 90%, the researchers emphasized. “Both patients with HCV genotype 1a infection with baseline RAVs who received 16 or 18 weeks of EBR/GZR and ribavirin achieved SVR12,” the researchers noted. Elbasvir is an HCV NS5A inhibitor, and GZR is an HCV NS3/4A protease inhibitor. In 2016, the Food and Drug Administration approved them in combination (Zepatier) for chronic genotype 1 and genotype 4 HCV. Studies have confirmed the benefits of treating HCV even when patients have cirrhosis, but they can be challenging to treat, especially if they have already failed a regimen that included a direct-acting antiviral agent, the investigators noted.

To explore the efficacy of EBR/GZR in compensated, Child-Pugh A cirrhosis, they studied 402 such patients with HCV genotype 1, 4, or 6 infections whose baseline HCV RNA level exceeded 10,000 IU. Patients had participated in one of six phase II/III clinical trials and had received EBR/GZR 50 mg/100 mg once daily for 12-18 weeks, with or without ribavirin (800-1400 mg/day based on body weight). Treatment-naive patients received 12 weeks of treatment, while treatment-experienced patients received 12, 16, or 18 weeks of treatment.

Twelve weeks of ribavirin did not boost SVR for either treatment-naive (90%) or treatment-experienced patients (91%), the researchers said. However, all 49 treatment-experienced patients who received EBR/GZR plus ribavirin for 16 or 18 weeks achieved SVR12, compared to 94% of patients who received EBR/GZR without ribavirin for 16 or 18 weeks.

Virologic failure was more common with HCV genotype 1a infections than with genotype 1b or 4 infection, especially if patients previously had not responded to interferon, the researchers noted. Eight of 11 (73%) patients with HCV genotype 1a infection and baseline NS5A RAVs achieved SVR12, compared with 98% of GT1a-infected patients without RAVs at baseline. But EBR/GZR was effective in various other subgroups, including patients with less than 100,000 platelets per microL, serum albumin below 3.5 g/dL, and FibroScan scores below 25 kPa. These findings suggest that EBR/GZR remains effective in patients with advanced compensated cirrhosis, the investigators said.

Most patients tolerated therapy, but six stopped treatment because of adverse events, including one episode of severe, possibly treatment-related abdominal pain. Also, four patients had late, asymptomatic rises in alanine aminotransferase (ALT) after first normalizing on treatment, and one patient stopped treatment because of grade 4 ALT elevation with eosinophilia. “There were no decompensation events in this generally healthy cirrhotic population, and no other evidence of declining liver function while on treatment,” the researchers added.

The integrated analysis was not prespecified, nor was it powered to compare outcomes between treatment arms. Only three patients had genotype 6 infection, and all were treatment-experienced. Only 23 patients had genotype 4 infection. Also, most patients had well-compensated cirrhosis. Finally, the trials varied in terms of how they defined cirrhosis, the investigators noted.

Merck, which funded the study, makes elbasvir and grazoprevir. The investigators acknowledged medical writing and editorial assistance from ApotheCom, which Merck funded. Dr. Jacobson disclosed consulting relationships and grant funding from Merck, AbbVie, Bristol-Myers Squibb, Gilead, Intercept, Janssen, and Trek.

The number of Veterans Affairs patients with hepatitis C who have achieved a sustained virologic response to antiviral therapy has escalated so rapidly and reached such a height that the disease may well be eradicated in that health care system within a few years, according to a report in Alimentary Pharmacology and Therapeutics.

The potential public health benefits are substantial, “considering that HCV infection is the most common cause of cirrhosis and liver cancer in the VA and the United States, that the benefits of SVR are long-lasting, and that HCV clearance reduces the risk of liver cancer by 76% and all-cause mortality by 50%,” said Andrew M. Moon, MD, of the division of general internal medicine, University of Washington, Seattle, and his associates.

An estimated 124,662 VA patients currently are infected, and curing them “would substantially reduce the burden of HCV within the entire country and prevent tens of thousands of deaths,” they noted.

The VA dramatically increased the number of patients who were offered treatment in recent years, because it was able to allocate nearly $700 million to offset the high costs of highly effective direct antiviral agents, which in turn made these better-tolerated drugs more widely available at clinics across the country. The VA also removed all treatment prioritization criteria, allowing all patients, not just those with severe disease, to receive highly effective direct antiviral agents. This is “in stark contrast to most health care systems, state Medicaid programs, and insurance carriers in the U.S., which still restrict access ... based on severity of liver disease,” the investigators said (Aliment Pharmacol Ther. 2017 March 8. doi: 10.1111/apt.14021).

To examine the impact of these changes, Dr. Moon and his associates performed a retrospective cohort study, analyzing the electronic medical records of all 105,369 HCV treatment regimens given to 78,947 VA patients (mean age, 56 years) during a 17-year period. They found that annual treatment rates more than doubled from 2,726 to 6,679 patients when pegylated interferon was introduced, declined for a while and then rose modestly to 4,900 patients when boceprevir and telaprevir were introduced, declined again to an all-time low of 2,609 and then rebounded to 9,180 patients when sofosbuvir and simeprevir were introduced, and finally skyrocketed to 31,028 patients when ledipasvir/sofosbuvir and paritaprevir/ritonavir/ombitasvir/dasabuvir were introduced.

Correspondingly, SVR rates rose from less than 25% at the beginning of the study period to a “remarkable” 90.5% at the end. The improvement in SVR rates was even more pronounced among traditionally “hard to treat” cases, such as patients with concomitant cirrhosis (from 11.0% to 87.0%), decompensated cirrhosis (from 14.6% to 85.2%), highly refractory infection (from 16.4% to 89.3%), and genotype-1 infection (from 1.3% to 91.7%). “The number of patients achieving SVR increased 21-fold from 1,313 in 2010 to an estimated 28,084 in 2015,” Dr. Moon and his associates said.

“We believe that our findings based on the VA health care system might be relevant and informative for other comprehensive health care systems,” providing proof-of-concept that similar results can be achieved if aggressive screening; affordable, tolerable treatment; and open access to all patients are implemented.

The number of Veterans Affairs patients with hepatitis C who have achieved a sustained virologic response to antiviral therapy has escalated so rapidly and reached such a height that the disease may well be eradicated in that health care system within a few years, according to a report in Alimentary Pharmacology and Therapeutics.

The potential public health benefits are substantial, “considering that HCV infection is the most common cause of cirrhosis and liver cancer in the VA and the United States, that the benefits of SVR are long-lasting, and that HCV clearance reduces the risk of liver cancer by 76% and all-cause mortality by 50%,” said Andrew M. Moon, MD, of the division of general internal medicine, University of Washington, Seattle, and his associates.

An estimated 124,662 VA patients currently are infected, and curing them “would substantially reduce the burden of HCV within the entire country and prevent tens of thousands of deaths,” they noted.

The VA dramatically increased the number of patients who were offered treatment in recent years, because it was able to allocate nearly $700 million to offset the high costs of highly effective direct antiviral agents, which in turn made these better-tolerated drugs more widely available at clinics across the country. The VA also removed all treatment prioritization criteria, allowing all patients, not just those with severe disease, to receive highly effective direct antiviral agents. This is “in stark contrast to most health care systems, state Medicaid programs, and insurance carriers in the U.S., which still restrict access ... based on severity of liver disease,” the investigators said (Aliment Pharmacol Ther. 2017 March 8. doi: 10.1111/apt.14021).

To examine the impact of these changes, Dr. Moon and his associates performed a retrospective cohort study, analyzing the electronic medical records of all 105,369 HCV treatment regimens given to 78,947 VA patients (mean age, 56 years) during a 17-year period. They found that annual treatment rates more than doubled from 2,726 to 6,679 patients when pegylated interferon was introduced, declined for a while and then rose modestly to 4,900 patients when boceprevir and telaprevir were introduced, declined again to an all-time low of 2,609 and then rebounded to 9,180 patients when sofosbuvir and simeprevir were introduced, and finally skyrocketed to 31,028 patients when ledipasvir/sofosbuvir and paritaprevir/ritonavir/ombitasvir/dasabuvir were introduced.

Correspondingly, SVR rates rose from less than 25% at the beginning of the study period to a “remarkable” 90.5% at the end. The improvement in SVR rates was even more pronounced among traditionally “hard to treat” cases, such as patients with concomitant cirrhosis (from 11.0% to 87.0%), decompensated cirrhosis (from 14.6% to 85.2%), highly refractory infection (from 16.4% to 89.3%), and genotype-1 infection (from 1.3% to 91.7%). “The number of patients achieving SVR increased 21-fold from 1,313 in 2010 to an estimated 28,084 in 2015,” Dr. Moon and his associates said.

“We believe that our findings based on the VA health care system might be relevant and informative for other comprehensive health care systems,” providing proof-of-concept that similar results can be achieved if aggressive screening; affordable, tolerable treatment; and open access to all patients are implemented.

The number of Veterans Affairs patients with hepatitis C who have achieved a sustained virologic response to antiviral therapy has escalated so rapidly and reached such a height that the disease may well be eradicated in that health care system within a few years, according to a report in Alimentary Pharmacology and Therapeutics.

The potential public health benefits are substantial, “considering that HCV infection is the most common cause of cirrhosis and liver cancer in the VA and the United States, that the benefits of SVR are long-lasting, and that HCV clearance reduces the risk of liver cancer by 76% and all-cause mortality by 50%,” said Andrew M. Moon, MD, of the division of general internal medicine, University of Washington, Seattle, and his associates.

An estimated 124,662 VA patients currently are infected, and curing them “would substantially reduce the burden of HCV within the entire country and prevent tens of thousands of deaths,” they noted.

The VA dramatically increased the number of patients who were offered treatment in recent years, because it was able to allocate nearly $700 million to offset the high costs of highly effective direct antiviral agents, which in turn made these better-tolerated drugs more widely available at clinics across the country. The VA also removed all treatment prioritization criteria, allowing all patients, not just those with severe disease, to receive highly effective direct antiviral agents. This is “in stark contrast to most health care systems, state Medicaid programs, and insurance carriers in the U.S., which still restrict access ... based on severity of liver disease,” the investigators said (Aliment Pharmacol Ther. 2017 March 8. doi: 10.1111/apt.14021).

To examine the impact of these changes, Dr. Moon and his associates performed a retrospective cohort study, analyzing the electronic medical records of all 105,369 HCV treatment regimens given to 78,947 VA patients (mean age, 56 years) during a 17-year period. They found that annual treatment rates more than doubled from 2,726 to 6,679 patients when pegylated interferon was introduced, declined for a while and then rose modestly to 4,900 patients when boceprevir and telaprevir were introduced, declined again to an all-time low of 2,609 and then rebounded to 9,180 patients when sofosbuvir and simeprevir were introduced, and finally skyrocketed to 31,028 patients when ledipasvir/sofosbuvir and paritaprevir/ritonavir/ombitasvir/dasabuvir were introduced.

Correspondingly, SVR rates rose from less than 25% at the beginning of the study period to a “remarkable” 90.5% at the end. The improvement in SVR rates was even more pronounced among traditionally “hard to treat” cases, such as patients with concomitant cirrhosis (from 11.0% to 87.0%), decompensated cirrhosis (from 14.6% to 85.2%), highly refractory infection (from 16.4% to 89.3%), and genotype-1 infection (from 1.3% to 91.7%). “The number of patients achieving SVR increased 21-fold from 1,313 in 2010 to an estimated 28,084 in 2015,” Dr. Moon and his associates said.

“We believe that our findings based on the VA health care system might be relevant and informative for other comprehensive health care systems,” providing proof-of-concept that similar results can be achieved if aggressive screening; affordable, tolerable treatment; and open access to all patients are implemented.

Despite the urging of the United States Preventive Services Task Force and other organizations in 2013, the percentage of baby boomers who underwent testing for hepatitis C (HCV) infection had barely changed 2 years later – from 12.3% in 2013 to 13.8% in 2015.

The numbers are particularly troubling because new and improved antiviral drugs offer cures that could forestall liver cancer, cirrhosis, and other potential complications, with shorter regimens and fewer side effects than older regimens.

Jarun011/Thinkstock

Despite the urging of the United States Preventive Services Task Force and other organizations in 2013, the percentage of baby boomers who underwent testing for hepatitis C (HCV) infection had barely changed 2 years later – from 12.3% in 2013 to 13.8% in 2015.

The numbers are particularly troubling because new and improved antiviral drugs offer cures that could forestall liver cancer, cirrhosis, and other potential complications, with shorter regimens and fewer side effects than older regimens.

Jarun011/Thinkstock

Despite the urging of the United States Preventive Services Task Force and other organizations in 2013, the percentage of baby boomers who underwent testing for hepatitis C (HCV) infection had barely changed 2 years later – from 12.3% in 2013 to 13.8% in 2015.

The numbers are particularly troubling because new and improved antiviral drugs offer cures that could forestall liver cancer, cirrhosis, and other potential complications, with shorter regimens and fewer side effects than older regimens.

Jarun011/Thinkstock