Methadone & Buprenorphine

Data, statistics and information about conventional opioid substitution therapy including methadone, buprenorphine and naltrexone

Treatment with Methadone or Buprenorphine Following Nonfatal Overdose Leads to Decreased Mortality

"In the 12 months after a nonfatal overdose, 2040 persons (11%) enrolled in MMT for a median of 5 months (interquartile range, 2 to 9 months), 3022 persons (17%) received buprenorphine for a median of 4 months (interquartile range, 2 to 8 months), and 1099 persons (6%) received naltrexone for a median of 1 month (interquartile range, 1 to 2 months). Among the entire cohort, all-cause mortality was 4.7 deaths (95% CI, 4.4 to 5.0 deaths) per 100 person-years and opioid-related mortality was 2.1 deaths (CI, 1.9 to 2.4 deaths) per 100 person-years.

Comparison of Extended-Release Naltrexone with Buprenorphine-Naloxone

"This large multicentre, randomised, controlled, comparative effectiveness trial had five major findings. First, it was more difficult to start XR-NTX [Extended-release naltrexone] treatment than BUP-NX [sublingual buprenorphine-naloxone] treatment: 28% dropped out of treatment before XR-NTX induction versus only 6% before BUP-NX induction. Second, nearly all induction failures had early relapse. Third, in the intention-to-treat population of all patients who were randomly assigned, XR-NTX had lower relapse-free survival than BUP-NX, directly related to early induction failure.

Availability and Utilization of Medication-Assisted Treatment in Drug Courts

"Virtually all drug courts (98%) reported that at least some of their participants were opioid-dependent in 2010. Prescription opioids were more frequently cited as the primary opioid problem than heroin (66% vs. 26%). This trend is particularly apparent in less densely populated areas: prescription versus heroin rates across the three population areas were: rural (76% vs. 12%), suburban (67% vs. 33%), and urban (prescription opioids less likely to be selected than heroin as the primary opioid; 38% vs. 50%); p < .01.

Methadone vs. Buprenorphine Treatment

(Methadone vs. Buprenorphine Treatment) "Opioid dependence and addiction, whether to heroin or prescription pain relievers, is a serious, life-threatening medical condition. Methadone and buprenorphine are medications that permit addicted individuals to function normally within their families, jobs, and communities. While treatment with methadone is more established, it requires daily visits to an OTP. Not all individuals who could benefit from methadone treatment live within easy travelling distance of an OTP.

Efficacy of Naltrexone Treatment

(Efficacy of Naltrexone Treatment) "Studies conducted in St. Petersburg, Russia, for more than a decade have demonstrated the efficacy and safety of different naltrexone formulations (oral, implantable, injectable) for relapse prevention and maintenance of abstinence in detoxified opioid addicts. The positive results from different formulations seem related to two cultural factors. One is that relatives can be recruited to supervise daily dosing of the oral formulation. However, this advantage is decreasing as the addicted population ages.

Efficacy of Long-Acting Injectable Naltrexone

(Efficacy of Long-Acting Injectable Naltrexone) "A randomized, double-blind, placebo-controlled trial examined the treatment efficacy of long-acting injectable naltrexone (Naltrel, DrugAbuse Sciences) for relapse prevention in 60 heroin-dependent i­ndividuals. Patients were stratified by sex and years of heroin use and randomized to receive placebo, 192 mg, or 384 mg of long-acting naltrexone intramuscular injections dosed on weeks 1 and 5. In addition to ­medication, patients received relapse prevention therapy and had urine monitored for drug relapse.

Sustained Release Naltrexone Implants

(Sustained Release Naltrexone Implants) "In order to overcome the issues of poor t­reatment adherence with oral naltrexone, a number of sustained-release implants have been developed internationally for use in alcohol and opioid dependence. A non-randomized retrospective review examined two types of sustained-release naltrexone implants, oral naltrexone, and historical controls revealed a significant difference between immediate and sustained-­release injectable naltrexone in individuals opioid-free 12 months after initiating treatment.

Opioid Substitution Treatment and Risk of New HIV Infection Among IDUs

(Opioid Substitution Treatment and Risk of New HIV Infection Among IDUs) "There is evidence from published and unpublished observational studies that opiate substitution treatment is associated with an average 54% reduction in the risk of new HIV infection among people who inject drugs. There is weak evidence to suggest that greater benefit might be associated with longer measured duration of exposure to opiate substitution treatment.

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