NIDA Study Finds Sustained Buprenorphine/Naloxone Effective at Treating Painkiller Abuse

People addicted to prescription painkillers reduce their opioid abuse when given sustained treatment with the medication buprenorphine plus naloxone (Suboxone), according to research published in yesterday’s Archives of General Psychiatry and conducted by the National Institute on Drug Abuse (NIDA), part of the National Institutes of Health. The study, which was the first randomized large scale clinical trial using a medication for the treatment of prescription opioid abuse, also showed that the addition of intensive opioid dependence counseling provided no added benefit.

"The study suggests that patients addicted to prescription opioid painkillers can be effectively treated in primary care settings using Suboxone," said NIDA Director Nora D. Volkow, M.D. "However, once the medication was discontinued, patients had a high rate of relapse — so, more research is needed to determine how to sustain recovery among patients addicted to opioid medications."
 
Pain medications are beneficial when used as prescribed, but they have significant abuse liability, especially when taken for non-medical reasons. This study examined whether the FDA-approved medication Suboxone could help combat this growing problem. Suboxone is a combination of buprenorphine to reduce opioid craving plus naloxone, which causes withdrawal symptoms in someone addicted to opioids if Suboxone were taken by a route other than orally, as prescribed. This combination was specifically designed to prevent abuse and diversion of buprenorphine and was one of the first to be eligible for prescribing under the Drug Addiction Treatment Act, which permits specially trained physicians to prescribe certain FDA approved medications for the treatment of opioid addiction.

In the study, more than 600 treatment-seeking outpatients addicted to prescription opioids received Suboxone in combination with brief standard medical management, in which physicians evaluated treatment effectiveness and recommended abstinence and self-help participation. Half of the participants also received varying intensities of addiction counseling as provided by trained substance abuse or mental health professionals.

Results showed that approximately 49 percent of participants reduced prescription painkiller abuse during extended (at least 12-week) Suboxone treatment. This success rate dropped to 8.6 percent once Suboxone was discontinued. Reductions in prescription painkiller abuse were seen regardless of whether or not the patient reported suffering chronic pain, and participants who received intensive addiction counseling did not show better outcomes when compared to those who did not receive this additional counseling.

The study can be found online at http://archpsyc.ama-assn.org/cgi/content/full/archgenpsychiatry.2011.121.