Smoking Cessation Clinical Trial
Official title:
D-cycloserine (DCS) Pretreatment + Cognitive Behavioral Therapy and Nicotine Replacement Therapy for Smoking Cessation
1. Compare the relative efficacy of ten weeks of once weekly 250 mg D-cycloserine (DCS) vs.
placebo (both in conjunction with cognitive behavioral therapy (CBT) and nicotine
replacement therapy (NRT) on reducing cigarette smoking in treatment-seeking
nicotine-dependent outpatients.
2. Compare the relative efficacy of ten weeks of once weekly 250 mg DCS vs. placebo on the
process of extinction and the memory encoding process.
The investigators will conduct a Stage 1 pilot feasibility study at McLean Hospital to develop a medication to treat nicotine dependence. In a randomized, double-blind, placebo-controlled trial, 40 nicotine-dependent participants ages 18-65 will receive cognitive behavioral therapy (CBT) and nicotine replacement therapy (NRT) over a 10- week period, with half receiving D-cycloserine (DCS) pretreatment and half receiving placebo. Participants will receive either 250 mg DCS or placebo prior to weekly CBT sessions in addition to NRT over a 10-week treatment period. The investigators also aim to determine the effects of DCS on performance on neuropsychological tests. A 10-week treatment period will be followed by follow-up assessments including neuropsychological tests at 1 and 3 months post-treatment. Primary outcomes will include smoking as measured by carbon monoxide levels and self-report measurements. ;
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