Brief Interventions for nicotine and cannabis use

描述(由申请人提供)： 就成瘾行为的发展而言，18岁至24岁之间的六年时间是至关重要的。大麻的使用在吸烟的年轻人中特别普遍，有理由认为这两种行为应该同时进行。该协议描述了一项为期4年的研究，该研究将调查两种类型的短暂干预(BI)对烟草和大麻使用的有效性，这两种类型的干预与酒精、吸烟和物质参与筛查测试(ASSIST)有关，ASSIST是世界卫生组织开发的一种新的筛查测试。在最初接受戒烟治疗后，300名同时吸食大麻的年轻成年吸烟者将被随机分为三种情况：1)等待名单对照组；2)接受一次短暂的大麻使用干预的一组；以及3)接受相同的一次MET治疗并转介到另外两次短暂治疗的一组。参与者将在随机后2个月、4个月和6个月重新接受采访。这项研究的具体目的是回答以下问题：1)接受戒烟治疗是否会减少吸食大麻？2)在戒烟治疗后，针对大麻的BI是否会减少大麻的使用？3)更密集的三次干预是否会减少一次以上的大麻使用？4)这些干预措施在按性别和种族定义的群体中是否同样有效？这项研究的长期目标是制定在年轻成人人口的初级保健环境中可行和有效的筛查和简短干预程序。

DESCRIPTION (provided by applicant): The six-year period between 18 and 24 years of age is critical in terms of the development of addictive behaviors. Marijuana use is particularly prevalent among young adults who smoke cigarettes, and there is reason to believe that the two behaviors should be approached concomitantly. This protocol describes a 4-year study that will investigate the effectiveness of two types of Brief Intervention (BI) for tobacco and marijuana use as linked to the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST), a new screening test developed by the World Health Organization. Following initial exposure to smoking cessation therapy, 300 young adult cigarette smokers who are also marijuana users will be randomized to three conditions: 1) a wait list control group; 2) a group receiving one session of brief intervention for their marijuana use; and 3) a group receiving the same one session of MET along with a referral to an additional two sessions of brief therapy. Participants will be reinterviewed at 2, 4 and 6 months post randomization. The specific aims of the study are to answer the following questions: 1) Does exposure to smoking cessation therapy reduce marijuana smoking? 2) Does a marijuana-specific BI reduce marijuana use following smoking cessation therapy? 3) Does the more intensive three-session intervention reduce marijuana use more than one session? And 4) Are these interventions equally effective across groups defined by gender and ethnicity? The long-term objectives of the study are to develop screening and brief intervention procedures that will be feasible and effective in primary health care settings for the young adult population.