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Background The optimal level of counseling and frequency of attendance for medication distribution has not been established for the primary care, office-based buprenorphine–naloxone treatment of opioid dependence.
Methods We conducted a 24-week randomized, controlled clinical trial with 166 patients assigned to one of three treatments: standard medical management and either once-weekly or thrice-weekly medication dispensing or enhanced medical management and thrice-weekly medication dispensing. Standard medical management was brief, manual-guided, medically focused counseling; enhanced management was similar, but each session was extended. The primary outcomes were the self-reported frequency of illicit opioid use, the percentage of opioid-negative urine specimens, and the maximum number of consecutive weeks of abstinence from illicit opioids.
Results The three treatments had similar efficacies with respect to the mean percentage of opioid-negative urine specimens (standard medical management and once-weekly medication dispensing, 44 percent; standard medical management and thrice-weekly medication dispensing, 40 percent; and enhanced medical management and thrice-weekly medication dispensing, 40 percent; P=0.82) and the maximum number of consecutive weeks during which patients were abstinent from illicit opioids. All three treatments were associated with significant reductions from baseline in the frequency of illicit opioid use, but there were no significant differences among the treatments. The proportion of patients remaining in the study at 24 weeks did not differ significantly among the patients receiving standard medical management and once-weekly medication dispensing (48 percent) or thrice-weekly medication dispensing (43 percent) or enhanced medical management and thrice-weekly medication dispensing (39 percent) (P=0.64). Adherence to buprenorphine–naloxone treatment varied; increased adherence was associated with improved treatment outcomes.
Conclusions Among patients receiving buprenorphine–naloxone in primary care for opioid dependence, the efficacy of brief weekly counseling and once-weekly medication dispensing did not differ significantly from that of extended weekly counseling and thrice-weekly dispensing. Strategies to improve buprenorphine–naloxone adherence are needed. (ClinicalTrials.gov number, NCT00023283
[ClinicalTrials.gov]
.)
Source Information
From the Departments of Internal Medicine (D.A.F., L.E.S., P.G.O.) and Psychiatry (M.V.P., M.C.C., B.A.M., R.S.S.), Yale University School of Medicine, New Haven, Conn.
Address reprint requests to Dr. Fiellin at Yale University School of Medicine, 333 Cedar St., P.O. Box 208025, New Haven, CT 06520, or at david.fiellin{at}yale.edu.
Related Letters:
Counseling plus Buprenorphine–Naloxone for Opioid Dependence
Gorelick D. A., Fiellin D. A., Moore B. A., Schottenfeld R. S.
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N Engl J Med 2006;
355:1736-1737, Oct 19, 2006.
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