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72 active trials for Substance Use

Mindfulness for at Risk Youth: Understanding Substance Use and Important Mechanisms of Change

This study will be the first to explore mindfulness as a prevention intervention among transition age youth and those with previous involvement in the juvenile or criminal justice system with substance use problems and history of exposure to violence/trauma. The study will focus on preventing escalation of substance use (e.g., alcohol and marijuana), trauma symptoms, and recidivism by using an intervention to target self-regulation and executive functioning. Justice involved youth have higher rates of alcohol use and related consequences and higher rates of exposure to violence (Post Traumatic Stress Disorder) compared to their non-justice involved peers. Prior research has found aspects of self-regulation (emotion regulation, impulse control), stress, and craving to be important putative targets in reducing alcohol use. With high rates of recidivism and increased risk of long term problems associated with substance use, it is imperative to test interventions that can reach at risk youth and target both alcohol use and important psychological and neurocognitive self-regulation mechanisms. This study tests whether the use of Mindfulness-Based Relapse Prevention (MBRP) for at risk young adults results in changes in important self-regulation mechanisms and improved alcohol use outcomes. Individuals assigned to the experimental group will receive interventions normally provided at a community clinic and eight 1.5-hour group sessions of MBRP. Sessions will occur once per week. Each session will target a specific theme such as being aware of personal triggers, maintaining present focus, allowing or letting things be, responding to emotional and physical experiences in skillful ways, and recognizing intrusive thoughts. Further, each session will incorporate a mindfulness meditation technique. The central hypothesis will be tested through a focus on three specific aims: (1) Beta pilot testing and refining MBRP based on feedback from focus groups, (2) testing the efficacy of MBRP on substance use outcomes compared to an active control, and (3) assessing mechanisms of change for MBRP including self-regulation and neurocognitive facets such as working memory and inhibition.

Start: March 2019
Using Values to Enhance Inmates' Response to Substance Use and HIV Risk Feedback

A key component of effective offender treatment is an initial assessment of risk factors followed by feedback to facilitate problem awareness and engagement in appropriate treatment and/or behavior change. Feedback regarding areas of high risk, however, can be experienced as threatening. The investigators propose to develop, fine-tune, and pilot-test a computerized system for risk assessment and feedback, including evaluation of a brief pre-feedback prosocial values affirmation exercise (Cohen & Sherman, 2014) aimed at decreasing defensiveness and increasing inmates' willingness to access and process risk-relevant information and to utilize post-release treatment resources, thereby reducing post-release substance misuse, HIV risk behavior, and criminal recidivism. Participants will be 170 jail inmates nearing release into the community - 20 pilot participants and 150 study participants randomly assigned to one of three conditions: (1) Values Affirmation + Personalized Risk Feedback; (2) Personalized Risk Feedback only; (3) Control. The baseline and risk assessment, values affirmation manipulation, and personalized risk feedback will be presented via touch-screen computers, requiring minimal training to administer. Analyses will assess: The feasibility of utilizing a computerized system to assess and share risk information with jail inmates, including a brief values affirmation exercise to reduce defensiveness; The acceptability of this approach from the perspectives of jail staff and inmates themselves; The impact of the intervention on observed proximal outcomes (mechanisms of action), such as time spent viewing feedback, electing to print a copy of informational and treatment resources, and consequent changes in perceptions of risk, treatability, etc.; The impact of the intervention on key post-release outcomes including engagement in relevant treatment services, substance misuse, HIV risk behaviors, re-offense and re-arrest; The links between proximal outcomes (MOAs) and key post-release outcomes; Potential moderators of treatment effectiveness.

Start: August 2019
E-Cigarette Inner City RCT

Tobacco is the most preventable cause of disease and death in Canada. Although the tobacco use rate has substantially gone down in the general population, significant differences exist between sub-populations in Canada, for example Ottawa's highly vulnerable homeless or at-risk for homelessness population has an almost 100% tobacco smoking rate relative to 9-18% in the rest of the Canadian general population. This stark inequity in tobacco use translates into devastating healthcare outcomes such as a disproportionate amount of cancer, stroke, heart disease and death. Canadians who are homeless or at-risk for homelessness die 25 years earlier than housed Canadians, mostly due to tobacco. In order to tackle this tobacco use related inequity - a novel approach is urgently needed. Despite commonly held dogma that People Who Use Drugs (PWUD) don't want to quit smoking, many studies have demonstrated that in fact they are very interested in quitting. Moreover, the investigators pragmatic peer-led community-based action approach used in their PROMPT project has demonstrated that tobacco dependence strategies can be implemented with great success in this population. The majority of PROMPT participants reduced or quit tobacco use, in addition to reducing or quitting all other drug use. Importantly, the investigators have demonstrated that it is possible to gain the trust and engagement of marginalized populations and that researchers can create a community space that is low-threshold, safe and non-judgmental. The investigators aim to compare two tobacco dependence management strategies in the homeless (or at-risk for homelessness) multi-drug use population in Ottawa and Toronto. They will use the same peer-led approach in PROMPT with community peer researchers with lived experience; with the hope that the cost-effective community based framework derived from this trial will serve as a template for interventions and treatments in community settings for chronic diseases such as obesity and diabetes.

Start: September 2019