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Naji L, Dennis BB, Bawor M, Plater C, Pare G, Worster A, Varenbut M, Daiter J, Marsh DC, Desai D, Thabane L, Samaan Z. A Prospective Study to Investigate Predictors of Relapse among Patients with Opioid Use Disorder Treated with Methadone. SUBSTANCE ABUSE-RESEARCH AND TREATMENT 2016; 10:9-18. [PMID: 27103815 PMCID: PMC4827793 DOI: 10.4137/sart.s37030] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 01/05/2016] [Accepted: 01/07/2016] [Indexed: 12/04/2022]
Abstract
INTRODUCTION Concomitant opioid abuse is a serious problem among patients receiving methadone maintenance treatment (MMT) for opioid use disorder. This is an exploratory study that aims to identify predictors of the length of time a patient receiving MMT for opioid use disorder remains abstinent (relapse-free). METHODS Data were collected from 250 MMT patients enrolled in addiction treatment clinics across Southern Ontario. The impact of certain clinical and socio-demographic factors on the outcome (time until opioid relapse) was determined using a Cox proportional hazard model. RESULTS History of injecting drug use behavior (hazard ratio (HR): 2.26, P = 0.042), illicit benzodiazepine consumption (HR: 1.07, P = 0.002), and the age of onset of opioid abuse (HR: 1.10, P < 0.0001) are important indicators of accelerated relapse among MMT patients. Conversely, current age is positively associated with duration of abstinence from illicit opioid use, serving as a protective factor against relapse (HR: 0.93, P = 0.003). CONCLUSION This study helps to identify patients at increased risk of relapse during MMT, allowing health care providers to target more aggressive adjunct therapies toward high-risk patients.
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Affiliation(s)
- Leen Naji
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
| | - Brittany B Dennis
- St. George's University of London, London, United Kingdom.; Department of Clinical Epidemiology and Biostatistics, McMaster University, ON, Hamilton, Canada
| | - Monica Bawor
- St. George's University of London, London, United Kingdom
| | - Carolyn Plater
- Canadian Addiction Treatment Centre, Richmond Hill, ON, Canada
| | - Guillaume Pare
- Department of Clinical Epidemiology and Biostatistics, McMaster University, ON, Hamilton, Canada
| | - Andrew Worster
- Canadian Addiction Treatment Centre, Richmond Hill, ON, Canada.; Department of Medicine, Hamilton General Hospital, Hamilton, ON, Canada
| | | | - Jeff Daiter
- Canadian Addiction Treatment Centre, Richmond Hill, ON, Canada
| | - David C Marsh
- Canadian Addiction Treatment Centre, Richmond Hill, ON, Canada.; Northern Ontario School of Medicine, Sudbury, ON, Canada
| | - Dipika Desai
- Population Genomics Program, Chanchlani Research Center, McMaster University, Hamilton, ON, Canada
| | - Lehana Thabane
- Department of Clinical Epidemiology and Biostatistics, McMaster University, ON, Hamilton, Canada.; Centre for Evaluation of Medicine, Hamilton, ON, Canada.; System Linked Research Unit, Hamilton, ON, Canada
| | - Zainab Samaan
- Department of Clinical Epidemiology and Biostatistics, McMaster University, ON, Hamilton, Canada.; Population Genomics Program, Chanchlani Research Center, McMaster University, Hamilton, ON, Canada.; Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada.; Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton, Hamilton, ON, Canada
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Abayomi O, Adelufosi AO. Psychosocial interventions for cannabis abuse and/or dependence among persons with co-occurring cannabis use and psychotic disorders. Hippokratia 2015. [DOI: 10.1002/14651858.cd011488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Olukayode Abayomi
- Ladoke Akintola University Teaching Hospital; Psychiatry; P.M.B 4007 Ogbomoso Oyo Nigeria 210214
| | - Adegoke Oloruntoba Adelufosi
- Northern Regional Health Authority; Community Mental Health Program; 867 Thompson Drive South Thompson Manitoba Canada
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Sigmon SC, Bisaga A, Nunes EV, O'Connor PG, Kosten T, Woody G. Opioid detoxification and naltrexone induction strategies: recommendations for clinical practice. THE AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE 2012; 38:187-99. [PMID: 22404717 PMCID: PMC4331107 DOI: 10.3109/00952990.2011.653426] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Opioid dependence is a significant public health problem associated with high risk for relapse if treatment is not ongoing. While maintenance on opioid agonists (i.e., methadone, buprenorphine) often produces favorable outcomes, detoxification followed by treatment with the μ-opioid receptor antagonist naltrexone may offer a potentially useful alternative to agonist maintenance for some patients. METHOD Treatment approaches for making this transition are described here based on a literature review and solicitation of opinions from several expert clinicians and scientists regarding patient selection, level of care, and detoxification strategies. CONCLUSION Among the current detoxification regimens, the available clinical and scientific data suggest that the best approach may be using an initial 2-4 mg dose of buprenorphine combined with clonidine, other ancillary medications, and progressively increasing doses of oral naltrexone over 3-5 days up to the target dose of naltrexone. However, more research is needed to empirically validate the best approach for making this transition.
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Affiliation(s)
- Stacey C Sigmon
- Department of Psychiatry, University of Vermont College of Medicine, Burlington, 05401, USA.
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Schottenfeld RS, Chawarski MC, Mazlan M. Maintenance treatment with buprenorphine and naltrexone for heroin dependence in Malaysia: a randomised, double-blind, placebo-controlled trial. Lancet 2008; 371:2192-200. [PMID: 18586174 PMCID: PMC4041792 DOI: 10.1016/s0140-6736(08)60954-x] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Expansion of access to effective treatments for heroin dependence is a worldwide health priority that will also reduce HIV transmission. We compared the efficacy of naltrexone, buprenorphine, and no additional treatment, in patients receiving detoxification and subsequent drug counselling, for maintenance of heroin abstinence, prevention of relapse, and reduction of HIV risk behaviours. METHODS 126 detoxified heroin-dependent patients, from an outpatient research clinic and detoxification programme in Malaysia, were randomly assigned by a computer-generated randomisation sequence to 24 weeks of manual-guided drug counselling and maintenance with naltrexone (n=43), buprenorphine (n=44), or placebo (n=39). Medications were administered on a double-blind and double-dummy basis. Primary outcomes, assessed by urine testing three times per week, were days to first heroin use, days to heroin relapse (three consecutive opioid-positive urine tests), maximum consecutive days of heroin abstinence, and reductions in HIV risk behaviours over 6 months. The study was terminated after 22 months of enrolment because buprenorphine was shown to have greater efficacy in an interim safety analysis. Analysis was by intention to treat. This study is registered with ClinicalTrials.gov, number NCT00383045. FINDINGS We observed consistent, linear contrasts in days to first heroin use (p=0.0009), days to heroin relapse (p=0.009), and maximum consecutive days abstinent (p=0.0007), with all results best for buprenorphine and worst for placebo. Buprenorphine was associated with greater time to first heroin use than were naltrexone (hazard ratio 1.87 [95% CI 1.21-2.88]) or placebo (2.02 [1.29-3.16]). With buprenorphine, we also recorded significantly greater time to heroin relapse (2.17 [1.38-3.42]), and maximum consecutive days abstinent than with placebo (mean days 59 [95% CI 43-76] vs 24 [13-35]; p=0.003); however, for these outcomes, differences between buprenorphine and naltrexone were not significant. Differences between naltrexone and placebo were not significant for any outcomes. HIV risk behaviours were significantly reduced from baseline across all three treatments (p=0.003), but the reductions did not differ significantly between the three groups. INTERPRETATION Our findings lend support to the widespread dissemination of maintenance treatment with buprenorphine as an effective public-health approach to reduce problems associated with heroin dependence.
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Affiliation(s)
| | - Marek C. Chawarski
- Departments of Psychiatry, Yale University School of Medicine, New Haven, CT
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