Context No randomized trials have examined treatments for prescription opioid dependence, despite its increasing prevalence. Objective To evaluate the efficacy of brief and extended buprenorphine-naloxone treatment, with different counseling intensities, for patients dependent upon prescription opioids. Setting, Participants 653 treatment-seeking outpatients dependent on prescription opioids, at 10 U.S. sites from June 2006-July 2009. Design Multi-site, randomized clinical trial, using a two-phase adaptive treatment research design. Brief treatment (Phase 1) included 2-week buprenorphine-naloxone stabilization, 2-week taper, and 8-week post-medication follow-up. Patients with successful opioid use outcomes exited the study; unsuccessful patients entered Phase 2: extended (12-week) buprenorphine-naloxone treatment, 4-week taper, and 8-week post-medication follow-up. Main outcome measures Pre-defined “successful outcome” in each phase: composite measures indicating minimal or no opioid use, based on urine-confirmed self-reports. Interventions In both phases, patients were randomized to Standard Medical Management (SMM) or SMM+Opioid Drug Counseling (ODC); all received buprenorphine-naloxone. Results During Phase 1, only 6.6% (43/653) of patients had successful outcomes, with no difference between the SMM and SMM+ODC. In contrast, 49.2% (177/360) attained successful outcomes in Phase 2 during extended buprenorphine-naloxone treatment (week 12), with no difference between counseling conditions. Success rates 8 weeks after completing the buprenorphine-naloxone taper (Phase 2, week 24) dropped sharply to 8.6% (31/360), again with no counseling difference. In secondary analyses, successful Phase 2 outcomes were far more common while taking buprenorphine-naloxone than 8 weeks post-taper (49.2% (177/360) vs. 8.6% (31/360), p<0.001). Chronic pain did not affect opioid use outcomes; a history of ever using heroin was associated with lower Phase 2 success rates while taking buprenorphine-naloxone. Conclusions Prescription opioid-dependent patients are most likely to reduce opioid use during buprenorphine-naloxone treatment; if tapered off buprenorphine-naloxone, even after 12 weeks of treatment, the likelihood of unsuccessful outcome is extremely high, even among patients receiving counseling in addition to medical management. Trial Registration ClinicalTrials.gov number NCT00316277
Aims Clinical trials test the safety and efficacy of behavioral and pharmacological interventions in drug-dependent individuals. However, there is no consensus about the most appropriate outcome(s) to consider in determining treatment efficacy or on the most appropriate methods for assessing selected outcome(s). We summarize the discussion and recommendations of treatment and research experts, convened by the US National Institute on Drug Abuse, to select appropriate primary outcomes for drug dependence treatment clinical trials, and in particular the feasibility of selecting a common outcome to be included in all or most trials. Methods A brief history of outcomes employed in prior drug dependence treatment research, incorporating perspectives from tobacco and alcohol research, is included. The relative merits and limitations of focusing on drug-taking behavior, as measured by self-report and qualitative or quantitative biological markers, are evaluated. Results Drug-taking behavior, measured ideally by a combination of self-report and biological indicators, is seen as the most appropriate proximal primary outcome in drug dependence treatment clinical trials. Conclusions We conclude that the most appropriate outcome will vary as a function of salient variables inherent in the clinical trial, such as the type of intervention, its target, treatment goals (e.g. abstinence or reduction of use) and the perspective being taken (e.g. researcher, clinical program, patient, society). It is recommended that a decision process, based on such trial variables, be developed to guide the selection of primary and secondary outcomes as well as the methods to assess them.
The number of individuals seeking treatment for prescription opioid dependence has increased dramatically, fostering a need for research on this population. The aim of this study was to examine reasons for prescription opioid use among 653 participants with and without chronic pain, enrolled in the Prescription Opioid Addiction Treatment Study, a randomized controlled trial of treatment for prescription opioid dependence. Participants identified initial and current reasons for opioid use. Participants with chronic pain were more likely to report pain as their primary initial reason for use; avoiding withdrawal was rated as the most important reason for current use in both groups. Participants with chronic pain rated using opioids to cope with physical pain as more important, and using opioids in response to social interactions and craving as less important, than those without chronic pain. Results highlight the importance of physical pain as a reason for opioid use among patients with chronic pain.
Objective To evaluate the impact of concurrent substance use disorder (SUD) and nicotine-dependence treatment for stimulant-dependent patients. Method A randomized, 10-week trial with follow-up at 3 and 6 months post-smoking quit date conducted at 12 SUD treatment programs between February 2010 and July 2012. Adults, meeting DSM-IV-TR criteria for cocaine and/or methamphetamine-dependence and interested in quitting smoking were randomized to treatment as usual (TAU; n=271) or TAU with smoking-cessation treatment (TAU+SCT, n=267). All participants received SUD TAU. TAU+SCT participants received weekly individual smoking cessation counseling and extended-release (XL) bupropion (300 mg/day) during weeks 1–10. During post-quit treatment (weeks 4–10), TAU+SCT participants received a nicotine inhaler and contingency management for smoking abstinence. Weekly proportion of stimulant-abstinent participants during the treatment phase, as assessed by urine drug screens and self-report, was the primary outcome. Secondary measures included other substance/nicotine use outcomes and treatment attendance. Results There were no significant treatment effects on stimulant-use outcomes, as measured by the primary outcome and stimulant-free days, on drug-abstinence, or on attendance. TAU+SCT, relative to TAU, participants had significantly better outcomes for drug-free days at 6-month follow-up (X2(1)=4.09, p<.05), with a decrease in drug-free days from baseline of −1.3% in TAU+SCT and of −7.6% in TAU. TAU+SCT, relative to TAU, participants had significantly better outcomes on smoking point-prevalence abstinence (25.5% vs. 2.2%; X2(1)=44.69, p<.001; OR=18.2). Conclusions These results suggest that providing smoking-cessation treatment to illicit stimulant-dependent patients in outpatient SUD treatment will not worsen, and may enhance, abstinence from non-nicotine substance use.
Many adolescents entering substance abuse treatment do not stay for the full course of prescribed treatment. There have been few explorations into what facilitates the ongoing participation of adolescents while in treatment. This paper describes adolescent, parent, and treatment staff perceptions of the barriers and facilitators to retention and participation. Interviews were conducted with 87 adolescents, parents, and staff from three residential substance abuse treatment agencies in two states. Data were coded thematically and organized into themes by respondent type. Respondents reported barriers related to treatment population, program design, and communication and relationships, and reported facilitators related only to communication and relationships. Staff reported far more barriers than facilitators in comparison to either adolescents or parents. Findings suggest that parents and staff underestimate their contributions to the treatment process and practitioners might benefit from rethinking how to communicate the value of these stakeholders.
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