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Patients treated with opioids for moderate to severe chronic back pain or knee or hip osteoarthritis pain saw no significant improvement when results were compared with treatment using acetaminophen or nonsteroidal anti-inflammatory drugs in the randomized SPACE study.
These findings may help restructure how physicians treat patients with chronic pain in order to decrease the risk of opioid addiction in a population that is particularly susceptible.
“Long-term opioid therapy became a standard approach to managing chronic musculoskeletal pain despite a lack of high-quality data on benefits and harms,” wrote Erin E. Krebs, MD, MPH, core investigator at the Minneapolis Veterans Affairs Center for Chronic Disease Outcomes Research, and her colleagues. “Rising rates of opioid overdose deaths have raised questions about prescribing opioids for chronic pain management.”
In the 12-month SPACE (Strategies for Prescribing Analgesics Comparative Effectiveness) trial published March 6 in JAMA, the investigators reported randomizing a total of 240 patients to treatment with immediate-release opioids (morphine, oxycodone, or hydrocodone/acetaminophen) or acetaminophen or nonsteroidal anti-inflammatory drugs. The patients came from the Minneapolis VA system between June 2013 and December 2015. Patients in the opioid group were on average 57 years old, while those in the nonopioid group had an average age of 60 years. Men comprised 87% of all patients, and both groups were predominantly white (86%-88%) with chronic back pain (65%). The investigators excluded patients with physiological opioid dependence from ongoing opioid use.
Patients taking opioids saw no significant improvement in the primary outcome of pain-related function on the seven-item Brief Pain Inventory (BPI) interference scale over those taking nonopioids at the end of the 12-month period (P = .58), according to Dr. Krebs and her fellow investigators.
The main secondary outcome of pain intensity using the four-item BPI severity scale improved significantly more among the nonopioid group, which reported an average score of 3.5, compared with 4.0 in the opioid group (P = .03). However, the small difference of 0.5 is less than the minimal clinically important difference of 1.0, according to the investigators.
Anxiety control was the only secondary outcome measure that was significantly better among patients in the opioid group, which was unsurprising to the investigators. “This finding is consistent with the role of the endogenous opioid system in stress and emotional suffering,” they wrote.
The investigators were uncertain about the significance of this small difference because overall anxiety levels were low, with 9% of patients reporting moderate severity anxiety symptoms at baseline.
Patients in the opioid group took a mean of 1.7 analgesics during the study period, compared with 3.8 in the nonopioid group. In the nonopioid group, the mean number of months that nonopioid analgesics were prescribed ranged from 2.6 for acetaminophen to 5.9 with oral NSAIDs. In this group, tramadol was prescribed to no more than 11% of patients during any particular month and was dispensed for a mean of 0.4 months overall.
Patients in the opioid group took opioids for a mean of 8.1 months, with all other analgesics taken for a mean of 0.4 months or less. The authors noted that in “each 90-day follow-up period, fewer than 15% of patients in the opioid group had a mean dispensed dosage of 50 morphine-equivalent mg/day or more.” Patients could be titrated up to a maximum daily dosage of 100 morphine-equivalent mg/day.
Patients prescribed opioids were significantly more likely to report medication-related symptoms, and while misuse was not significantly higher in the opioid group, the investigators said that “Overall, opioids did not demonstrate any advantage over nonopioid medications that could potentially outweigh their greater risk of harms.”
Further studies will need to include a more diverse population, they noted.
The study was funded by an award from the U.S. Department of Veterans Affairs Health Services Research and Development Service. The investigators reported no relevant disclosures.
ezimmerman@frontlinemedcom.com
SOURCE: Krebs EE et al. JAMA. 2018 Mar 6;319(9):872-82
Patients treated with opioids for moderate to severe chronic back pain or knee or hip osteoarthritis pain saw no significant improvement when results were compared with treatment using acetaminophen or nonsteroidal anti-inflammatory drugs in the randomized SPACE study.
These findings may help restructure how physicians treat patients with chronic pain in order to decrease the risk of opioid addiction in a population that is particularly susceptible.
“Long-term opioid therapy became a standard approach to managing chronic musculoskeletal pain despite a lack of high-quality data on benefits and harms,” wrote Erin E. Krebs, MD, MPH, core investigator at the Minneapolis Veterans Affairs Center for Chronic Disease Outcomes Research, and her colleagues. “Rising rates of opioid overdose deaths have raised questions about prescribing opioids for chronic pain management.”
In the 12-month SPACE (Strategies for Prescribing Analgesics Comparative Effectiveness) trial published March 6 in JAMA, the investigators reported randomizing a total of 240 patients to treatment with immediate-release opioids (morphine, oxycodone, or hydrocodone/acetaminophen) or acetaminophen or nonsteroidal anti-inflammatory drugs. The patients came from the Minneapolis VA system between June 2013 and December 2015. Patients in the opioid group were on average 57 years old, while those in the nonopioid group had an average age of 60 years. Men comprised 87% of all patients, and both groups were predominantly white (86%-88%) with chronic back pain (65%). The investigators excluded patients with physiological opioid dependence from ongoing opioid use.
Patients taking opioids saw no significant improvement in the primary outcome of pain-related function on the seven-item Brief Pain Inventory (BPI) interference scale over those taking nonopioids at the end of the 12-month period (P = .58), according to Dr. Krebs and her fellow investigators.
The main secondary outcome of pain intensity using the four-item BPI severity scale improved significantly more among the nonopioid group, which reported an average score of 3.5, compared with 4.0 in the opioid group (P = .03). However, the small difference of 0.5 is less than the minimal clinically important difference of 1.0, according to the investigators.
Anxiety control was the only secondary outcome measure that was significantly better among patients in the opioid group, which was unsurprising to the investigators. “This finding is consistent with the role of the endogenous opioid system in stress and emotional suffering,” they wrote.
The investigators were uncertain about the significance of this small difference because overall anxiety levels were low, with 9% of patients reporting moderate severity anxiety symptoms at baseline.
Patients in the opioid group took a mean of 1.7 analgesics during the study period, compared with 3.8 in the nonopioid group. In the nonopioid group, the mean number of months that nonopioid analgesics were prescribed ranged from 2.6 for acetaminophen to 5.9 with oral NSAIDs. In this group, tramadol was prescribed to no more than 11% of patients during any particular month and was dispensed for a mean of 0.4 months overall.
Patients in the opioid group took opioids for a mean of 8.1 months, with all other analgesics taken for a mean of 0.4 months or less. The authors noted that in “each 90-day follow-up period, fewer than 15% of patients in the opioid group had a mean dispensed dosage of 50 morphine-equivalent mg/day or more.” Patients could be titrated up to a maximum daily dosage of 100 morphine-equivalent mg/day.
Patients prescribed opioids were significantly more likely to report medication-related symptoms, and while misuse was not significantly higher in the opioid group, the investigators said that “Overall, opioids did not demonstrate any advantage over nonopioid medications that could potentially outweigh their greater risk of harms.”
Further studies will need to include a more diverse population, they noted.
The study was funded by an award from the U.S. Department of Veterans Affairs Health Services Research and Development Service. The investigators reported no relevant disclosures.
ezimmerman@frontlinemedcom.com
SOURCE: Krebs EE et al. JAMA. 2018 Mar 6;319(9):872-82
Patients treated with opioids for moderate to severe chronic back pain or knee or hip osteoarthritis pain saw no significant improvement when results were compared with treatment using acetaminophen or nonsteroidal anti-inflammatory drugs in the randomized SPACE study.
These findings may help restructure how physicians treat patients with chronic pain in order to decrease the risk of opioid addiction in a population that is particularly susceptible.
“Long-term opioid therapy became a standard approach to managing chronic musculoskeletal pain despite a lack of high-quality data on benefits and harms,” wrote Erin E. Krebs, MD, MPH, core investigator at the Minneapolis Veterans Affairs Center for Chronic Disease Outcomes Research, and her colleagues. “Rising rates of opioid overdose deaths have raised questions about prescribing opioids for chronic pain management.”
In the 12-month SPACE (Strategies for Prescribing Analgesics Comparative Effectiveness) trial published March 6 in JAMA, the investigators reported randomizing a total of 240 patients to treatment with immediate-release opioids (morphine, oxycodone, or hydrocodone/acetaminophen) or acetaminophen or nonsteroidal anti-inflammatory drugs. The patients came from the Minneapolis VA system between June 2013 and December 2015. Patients in the opioid group were on average 57 years old, while those in the nonopioid group had an average age of 60 years. Men comprised 87% of all patients, and both groups were predominantly white (86%-88%) with chronic back pain (65%). The investigators excluded patients with physiological opioid dependence from ongoing opioid use.
Patients taking opioids saw no significant improvement in the primary outcome of pain-related function on the seven-item Brief Pain Inventory (BPI) interference scale over those taking nonopioids at the end of the 12-month period (P = .58), according to Dr. Krebs and her fellow investigators.
The main secondary outcome of pain intensity using the four-item BPI severity scale improved significantly more among the nonopioid group, which reported an average score of 3.5, compared with 4.0 in the opioid group (P = .03). However, the small difference of 0.5 is less than the minimal clinically important difference of 1.0, according to the investigators.
Anxiety control was the only secondary outcome measure that was significantly better among patients in the opioid group, which was unsurprising to the investigators. “This finding is consistent with the role of the endogenous opioid system in stress and emotional suffering,” they wrote.
The investigators were uncertain about the significance of this small difference because overall anxiety levels were low, with 9% of patients reporting moderate severity anxiety symptoms at baseline.
Patients in the opioid group took a mean of 1.7 analgesics during the study period, compared with 3.8 in the nonopioid group. In the nonopioid group, the mean number of months that nonopioid analgesics were prescribed ranged from 2.6 for acetaminophen to 5.9 with oral NSAIDs. In this group, tramadol was prescribed to no more than 11% of patients during any particular month and was dispensed for a mean of 0.4 months overall.
Patients in the opioid group took opioids for a mean of 8.1 months, with all other analgesics taken for a mean of 0.4 months or less. The authors noted that in “each 90-day follow-up period, fewer than 15% of patients in the opioid group had a mean dispensed dosage of 50 morphine-equivalent mg/day or more.” Patients could be titrated up to a maximum daily dosage of 100 morphine-equivalent mg/day.
Patients prescribed opioids were significantly more likely to report medication-related symptoms, and while misuse was not significantly higher in the opioid group, the investigators said that “Overall, opioids did not demonstrate any advantage over nonopioid medications that could potentially outweigh their greater risk of harms.”
Further studies will need to include a more diverse population, they noted.
The study was funded by an award from the U.S. Department of Veterans Affairs Health Services Research and Development Service. The investigators reported no relevant disclosures.
ezimmerman@frontlinemedcom.com
SOURCE: Krebs EE et al. JAMA. 2018 Mar 6;319(9):872-82
FROM JAMA
Key clinical point: Opioids and nonopioid analgesics provided similar improvements in pain-related function for patients with chronic pain.
Major finding: Patients taking opioids did not show significant improvement in pain-related function, compared with those taking nonopioids (P = .58).
Study details: A 12-month, randomized trial of 240 patients with chronic back, knee, or hip pain, gathered from a Veterans Affairs clinic between June 2013 to December 2015.
Disclosures: The study was funded by an award from the U.S. Department of Veterans Affairs Health Services Research and Development Service. The investigators reported no relevant disclosures.
Source: Krebs E et al. JAMA. 2018;319(9):872-82