Targeting tobacco cessation during treatment for cannabis use disorders

描述（由申请人提供）：大约50%寻求大麻使用障碍（CUDs）治疗的人经常吸烟。将烟草和大麻结合起来已经成为吸食大麻的一种常见方法，要么是使用钝器（将大麻卷进掏空的雪茄中），要么是在关节中加入烟草，要么是在吸食大麻后立即吸烟（追逐）。对于那些试图戒掉大麻的人来说，吸烟是大麻结果的一个负面预测因素，反之亦然。类似的给药途径以及烟草和大麻的重复使用可能会导致习得性关联，从而加强使用这两种物质的行为，并使戒烟变得更加困难。与使用酒精或其他药物相比，在停止使用大麻的同时停止吸烟可能更有益。目前关于如何在治疗慢性阻塞性肺病期间最好地减少吸烟的科学信息很少。该项目的长期目标是开发一种有效的干预协议

DESCRIPTION (provided by applicant): Approximately 50% of persons seeking treatment for cannabis-use disorders (CUDs) regularly smoke tobacco. Combining tobacco with cannabis has become a common method of smoking cannabis either via use of blunts (rolling cannabis into hollowed out cigars), adding tobacco to joints, or smoking tobacco immediately after cannabis (chasing). Tobacco smoking is a negative predictor of cannabis outcomes for those trying to quit using cannabis, and vice versa. The similar route of administration and repeated pairing of tobacco and cannabis use likely results in learned associations that strengthen the behavior for using both substances, and make quitting more difficult. Perhaps even more than with use of alcohol or other drugs, stopping tobacco at the same time as cannabis may be beneficial. Little scientific information currently addresses how to best target tobacco smoking during treatment for CUDs. The long-term goal of this project is to develop an effective protocol for intervening in tobacco smoking in this population without adversely affecting cannabis outcomes, and perhaps enhancing them. A two-phase, Stage 1 therapy development project will accomplish the following three Specific Aims. First, a treatment protocol and manual will be developed that integrates a tailored intervention for tobacco smoking (nicotine replacement therapy and behavioral counseling) with an optimal intervention for CUD (Aim 1). Utilization of web-based counseling programs will standardize delivery of the intervention and foster eventual dissemination. A pilot study will provide an initial test of acceptability and feasibility, and infrm modifications to the intervention. Second, a Stage 1, proof-of-concept study will compare this combined intervention to one that targets CUD only (Aim 2). The primary hypotheses assert that the intervention (1) will be accepted by the majority of CUD outpatients who smoke tobacco; (2) will result in more tobacco quit attempts and higher tobacco cessation rates than the CUD-only treatment; and (3) will not adversely affect cannabis outcomes, and possibly enhance them. Estimates of outcomes and condition differences will inform the planning and design of a subsequent Stage 2 efficacy trial. Last, the project will evaluate the potential of specific moderators of outcomes, such as impulsivity (delay discounting rate), to predict outcomes and inform subsequent treatment development efforts (Aim 3). If the hypotheses were confirmed, dissemination of this protocol would reduce adverse psychosocial and health consequences associated with tobacco and cannabis dependence. Moreover, findings will inform future development of prevention and intervention strategies by advancing knowledge related to the interplay of cannabis and tobacco smoking and the biologic and behavioral factors that contribute to initiation of use, misuse, and attempts to quit using them. PUBLIC HEALTH RELEVANCE: This project aims to develop and test an intervention for the simultaneous treatment of cannabis use disorders and tobacco smoking. This is important because over 50% of adults seeking treatment to help stop cannabis use also smoke tobacco regularly, which decreases their chance for a successful treatment outcome and increases adverse acute and long-term psychosocial and health consequences. The proposed treatment will integrate existing computer-based behavioral interventions for cannabis and tobacco and use nicotine replacement medications to improve outcomes in this difficult to treat clinical population.