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Methadone and buprenorphine reduce risk of death after opioid overdose

June 19, 2018

nonfatal opioid overdose is associated with significant reductions in opioid related mortality. The research, published today in the Annals of Internal Medicine, was co-funded by the National Institute on Drug Abuse (NIDA) and the National Center for Advancing Translational Sciences, both parts of NIH.

Study authors analyzed data from 17,568 adults in Massachusetts who survived an opioid overdose between 2012 and 2014. Compared to those not receiving medication assisted treatment, opioid overdose deaths decreased by 59 percent for those receiving methadone and 38 percent for those receiving buprenorphine over the 12 month follow-up period. The authors were unable to draw conclusions about the impact of naltrexone due to small sample size, noting that further work is needed with larger samples. Buprenorphine, methadone, and naltrexone are three FDA-approved medications used to treat opioid use disorder (OUD).

The study, the first to look at the association between using medication to treat OUD and mortality among patients experiencing a nonfatal opioid overdose, confirms previous research on the role methadone and buprenorphine can play to effectively treat OUD and prevent future deaths from overdose.

Despite compelling evidence that medication assisted treatment can help many people recover from opioid addiction, these proven medications remain greatly underutilized. The study also found that in the first year following an overdose, less than one third of patients were provided any medication for OUD, including methadone (11 percent); buprenorphine (17 percent); and naltrexone (6 percent), with 5 percent receiving more than one medication.

In an editorial commenting on the study, Dr. Nora Volkow, director of NIDA, said, "A great part of the tragedy of this opioid crisis is that, unlike in previous such crises America has seen, we now possess effective treatment strategies that could address it and save many lives, yet tens of thousands of people die each year because they have not received these treatments. Ending the crisis will require changing policies to make these medications more accessible and educating primary care and emergency providers, among others, that opioid addiction is a medical illness that must be treated aggressively with the effective tools that are available." The editorial was co-authored by NIDA scientist Dr. Eric Wargo.

Another alarming study finding was that despite having had an opioid overdose, 34 percent of people who experienced an overdose were subsequently prescribed one or more prescriptions for opioid painkillers over the next 12 months, and 26 percent were prescribed benzodiazepines.

"Nonfatal opioid overdose is a missed opportunity to engage individuals at high risk of death," said Marc Larochelle, M.D., the study's lead investigator at Boston Medical Center's Grayken Center for Addiction and Boston University School of Medicine. "We need to better understand barriers to treatment access and implement policy and practice reforms to improve both engagement and retention in effective treatment."

The authors conclude that a nonfatal opioid overdose treated in the emergency department is a critical time to identify people with OUD, and an opportunity to offer patients access to treatment inventions, providing linkage to care following their discharge, and making improvements in treatment retention.
-end-
Article

Larochelle, et al. Medication for opioid use disorder after nonfatal opioid overdose and association with mortality. A cohort study. Annals of Internal Medicine. June 19, 2018.

Editorial

Volkow, N. and Wargo, E. Overdose Prevention Through Medical Treatment of Opioid Use Disorders. Annals of Internal Medicine. June 19, 2018.

About the National Institute on Drug Abuse (NIDA): The National Institute on Drug Abuse (NIDA) is a component of the National Institutes of Health, U.S. Department of Health and Human Services. NIDA supports most of the world's research on the health aspects of drug use and addiction. The Institute carries out a large variety of programs to inform policy, improve practice, and advance addiction science. The mission of NIDA's Intramural Research Program (IRP) is to conduct state-of-the-art research on basic mechanisms that underlie drug use and addiction, and to develop new methods for treatment. Fact sheets on the health effects of drugs and information on NIDA research and other activities can be found at http://www.drugabuse.gov, which is now compatible with your smartphone, iPad or tablet. To order publications in English or Spanish, call NIDA's DrugPubs research dissemination center at 1-877-NIDA-NIH or 240-645-0228 (TDD) or email requests to drugpubs@nida.nih.gov. Online ordering is available at drugpubs.drugabuse.gov. NIDA's media guide can be found at http://www.drugabuse.gov/publications/media-guide/dear-journalist, and its easy-to-read website can be found at http://www.easyread.drugabuse.gov. You can follow NIDA on Twitter and Facebook.

About the National Center for Advancing Translational Sciences (NCATS): NCATS conducts and supports research on the science and operation of translation -- the process by which interventions to improve health are developed and implemented -- to allow more treatments to get to more patients more quickly. For more information about how NCATS is improving health through smarter science, visit https://ncats.nih.gov.

About the National Institutes of Health (NIH): NIH, the nation's medical research agency, includes 27 Institutes and Centers and is a component of the U.S. Department of Health and Human Services. NIH is the primary federal agency conducting and supporting basic, clinical, and translational medical research, and is investigating the causes, treatments, and cures for both common and rare diseases. For more information about NIH and its programs, visit http://www.nih.gov.

NIH/National Institute on Drug Abuse

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