Clinical Research Directory
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89 clinical studies listed.
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Tundra lists 89 Substance Use clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.
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NCT05700474
Enhancing Wellness Through Affirming Services and Education
The goal of this treatment study is to learn about the mental health, substance use and physical health outcomes associated with participating in the EASE holistic behavioral health and wellness program for individuals seeking HIV prevention and/or living with HIV. The main questions it aims to answer are: 1. Do important health outcomes, including substance use, mental health and social support related outcomes of individuals who participated in the holistic behavioral health and wellness program change after study participation? 2. Does a tailored approach to meet the specific needs of different subpopulations including 1) older (40+) PLWH with or at risk for additional health comorbidities and 2) PLWH and/or young adults (18-40) seeking HIV prevention to improve health outcomes including improvement in health and health behaviors . Participants will be asked to: * participate in 6 months of behavioral health treatment tailored to their needs, which may include individual counseling, group counseling, case management, peer support, and related education. * Complete surveys at the time of study entry and 6 months later to measure changes in health outcomes over time.
Gender: All
Ages: 18 Years - Any
Updated: 2026-04-09
1 state
NCT07433712
Project REACH: A Comprehensive Telehealth Intervention at Syringe Service Programs to Engage People Who Use Drugs
This trial will assess the feasibility, acceptability, and preliminary effectiveness of Project REACH (Remote Engagement \& Access for Community Health), a telehealth intervention at syringe service programs (SSP) to improve access to HIV-related evidence-based interventions (EBI) for people who use drugs including those who inject them.
Gender: All
Ages: 18 Years - Any
Updated: 2026-04-08
1 state
NCT07509853
Integrating Sexual Pleasure Into Harm Reduction Services for Men Who Have Sex With Men and Transgender Persons Who Engage in Chemsex or Substance Use in Thailand
The study evaluates the integration of a sexual pleasure-based approach into harm reduction services for MSM and transgender persons engaging in chemsex or substance use in Thailand, using the "Pleasuremeter" tool to improve sexual health and related outcomes.
Gender: All
Ages: 18 Years - Any
Updated: 2026-04-08
1 state
NCT07516301
Feasibility of Incorporating a Standardized Substance Use Measure With Linked-Brief Intervention Into Routine Psychosocial Care of Adult Childhood Cancer Survivors
The ASSIST Study is designed to explore whether a brief, evidence based substance use screening and counseling approach can be easily integrated into routine survivorship care at St. Jude Children's Research Hospital. During a regularly scheduled psychosocial visit, participants complete the World Health Organization's Alcohol, Smoking, and Substance Involvement Screening Test (ASSIST). This short questionnaire helps identify patterns of use related to tobacco, alcohol, cannabis, prescription medications, and other substances. Survivors whose results show possible risk receive a brief, supportive counseling session during the same appointment. This session uses motivational interviewing techniques to help individuals reflect on their use and consider steps to reduce potential harm. Primary Objective: \- Assess the feasibility and acceptability of implementing a standardized assessment of substance use and brief substance use reduction intervention in survivorship clinical settings. Secondary Objective: \- Evaluate the reliability of delivering a brief substance use intervention to reduce substance use behaviors among Adult Survivors of Childhood Cancer (ASCC) followed in the (ACT) Clinic.
Gender: All
Ages: 18 Years - Any
Updated: 2026-04-07
1 state
NCT07512869
Host Led Harm Reduction Approach Among Men Who Have Sex With Men Who Engaged in Chemsex in Bangkok, Thailand: A Pre-Implementation Study
This study evaluates the pre-implementation phase of a host-led harm reduction model for men who have sex with men (MSM) engaging in chemsex in Bangkok, Thailand, focusing on understanding harms, contexts, and needs to develop a tailored intervention.
Gender: MALE
Ages: 18 Years - Any
Updated: 2026-04-06
1 state
NCT07512856
The Implementation of a Trans-tailored Harm Reduction Service for Transgender Persons in Relation to chemsEX and Substance Use (iT-REX)
This study evaluates a comprehensive transgender-tailored harm reduction service for transgender women, transgender men, and non-binary individuals engaging in chemsex or substance use in Thailand, focusing on PrEP uptake, HIV/STI outcomes, mental health, and socio-legal impacts.
Gender: All
Ages: 18 Years - Any
Updated: 2026-04-06
1 state
NCT07505875
Pre-implementation Study to Develop Trans-tailored Services for Transgender Persons in Relation to chemsEX
The study is a pre-implementation cross-sectional study exploring chemsex behaviors among transgender persons and gathering perspectives from multiple stakeholders to inform the development of transgender-tailored harm reduction services.
Gender: All
Ages: 18 Years - Any
Updated: 2026-04-06
1 state
NCT04998916
MPFC Theta Burst Stimulation as a Treatment Tool for Alcohol Use Disorder: Effects on Drinking and Incentive Salience
The purpose of this study is to develop transcranial magnetic stimulation (TMS), specifically TMS at a frequency known as theta burst stimulation (TBS), to see how it affects the brain and changes the brain's response to alcohol-related pictures. TMS and TBS are stimulation techniques that use magnetic pulses to temporarily excite specific brain areas in awake people (without the need for surgery, anesthetic, or other invasive procedures). TBS, which is a form of TMS, will be applied over the medial prefrontal cortex, (MPFC), which has been shown to be involved with drinking patterns and alcohol consumption. This study will test whether TBS can be used as an alternative tool to reduce the desire to use alcohol and reducing the brain's response to alcohol-related pictures.
Gender: All
Ages: 21 Years - 65 Years
Updated: 2026-04-02
1 state
NCT06496750
Ketamine for Methamphetamine Use Disorder
This study aims to determine whether treatment response with IV ketamine is superior to treatment response with IV midazolam in adults with moderate to severe MUD. The study design is a 12-week randomized, double-blind, controlled trial comparing intravenous (IV) ketamine against IV midazolam, delivered over six weeks in 120 adults with moderate to severe methamphetamine use disorder (MUD).
Gender: All
Ages: 18 Years - 65 Years
Updated: 2026-04-01
5 states
NCT07378254
Finding Emotional Empowerment and Lifelong Strength
This study will build a partnership with a Community Advisory Board to co-produce, and then pilot test, a theory-guided mental health literacy intervention focused on trauma and substance use. Participants will take part in educational group sessions for 12 weeks and complete assessments at baseline and two follow-up time points (mid-intervention and post-intervention). Intervention participants will be randomly invited to post-study focus groups to gather feedback on their experiences in the program.
Gender: All
Ages: 18 Years - 35 Years
Updated: 2026-04-01
1 state
NCT07075081
Gii'Igoshimong: Sitting With Your First Family
The goal of this randomized wait-list control study is to understand the relationship between ceremony and substance use (SU), SU risk (e.g., SU severity, depressive symptoms) and protective factors (e.g., spirituality, community support). The main questions it aims to answer are: * Will adults enrolled in Gii'igoshimong show improved SU outcomes compared to those in control groups? * Will self-relevant processing networks activated during stimulus engagement increase from pre- to post- engagement in ceremony and at 6-month follow-up? Researchers will compare adults that complete Gii'igoshimong with those that do not complete Gii'igoshimong to see if health outcomes are different. After completing baseline assessments, participants will be randomized to complete Gii'igoshimong now (intervention) or after the participants have completed the 1 month and 6-month post assessments (waitlist control). All participants (intervention and waitlist control) within a cohort will complete 1 month and 6 month post assessments at the same time.
Gender: All
Ages: 18 Years - Any
Updated: 2026-03-31
1 state
NCT07340554
Neuroimaging of Adolescent Cannabis Use Treatment
This study is testing whether brain activity related to learning can help predict how well teens respond to a treatment program designed to reduce cannabis use. Teens ages 14-17 will complete a brain scan and then take part in 10 weekly virtual sessions where they report cannabis use and complete drug tests at home. Participants can earn prizes for staying cannabis-free.
Gender: All
Ages: 14 Years - 17 Years
Updated: 2026-03-27
1 state
NCT06524232
The STop UNhealthy Substance Use Now Trial
The STop UNhealthy (STUN) Substance Use Now Trial (STUN II) is a multisite trial aiming to evaluate the comparative effectiveness of the following strategies for improving the implementation of screening and interventions for substance use disorders in primary care: practice facilitation (PF), PF plus a learning collaborative (LC), PF plus performance incentives (PI), and PF+LC+PI. We plan to enroll 144 clinic staff participants from 48 primary care practices
Gender: All
Ages: 18 Years - Any
Updated: 2026-03-25
1 state
NCT05562557
A Regional Partnership to Improve Outcomes Through Fatherhood Engagement
Montefiore will engage fathers in families at risk of substance misuse in the Bronx and neighboring communities. Families will be referred from Bronx and neighboring community-based child welfare systems, substance use disorder (SUD) treatment providers, and medical providers if identified at risk of substance use concerns and will be randomly assigned to receive services as usual as part of the comparison group, or to receive enhanced services as part of the program group. Enhanced services include: (1) Motivational Enhancement; (2) referral to Healthy, Empowered, Resilient, and Open (HERO) Dads fatherhood engagement program; (3) Contingency Management; and (4) Case Management.
Gender: MALE
Ages: 18 Years - Any
Updated: 2026-03-24
1 state
NCT06624332
Home Visitation Enhancing Linkages Project in Kansas
The goal of this study is to learn about whether digital screening and brief intervention can help address substance use in postpartum mothers who are enrolled in home visiting programs. The main questions it aims to answer are: 1. What combination of digital intervention components work best for postpartum mothers in home visiting programs? 2. What are the factors that help the intervention work best in home visiting, and what factors serve as barriers to the success of the intervention? Participants in the study will include home visiting staff and postpartum home visiting clients. Participants who are home visitors will be asked to participate in focus groups and interviews, introduce the study to their clients and refer interested clients to the study, complete online surveys, and implement the home visitor components of the intervention with their clients who enroll in the study. Participants who are home visiting clients will be asked to participate in focus groups and interviews, complete online surveys, and complete the digital screening and brief intervention sessions.
Gender: FEMALE
Ages: 18 Years - Any
Updated: 2026-03-18
NCT05964010
Primary Connections for Youth and Families
The goal of this clinical trial is to compare a standard adolescent-only approach to substance use screening, brief intervention, and referral to treatment to a in primary care settings. Primary outcomes (AOD use, co-occurring behavior problems, parent-youth communication about AOD use) and secondary outcomes (adolescent quality of life, therapy attendance) are assessed at screen/initial and 3, 6, 9, and 12 months follow-up.
Gender: All
Ages: 12 Years - 17 Years
Updated: 2026-03-18
1 state
NCT04812613
Tobacco-Concurrent Addictions in At-Risk Youth in Ottawa
According to the 2015 Ontario Student Drug Use and Health Survey (OSDUHS), there has been a significant increase in the number of secondary school youth who use poly-substances. Not all youth have the same risk for problematic substance use. Health literature documents a high level of comorbidity between mental health and substance use, which is exacerbated in homeless youth populations. Therefore, the proposed study will focus on understanding poly-substance use among at-risk homeless school youth. As seen in substance use research and the PROMPT (2016) study (Participatory Research in Ottawa: Management and Point-of-Care for Tobacco Dependence, PI: Dr. Smita Pakhale), reduction and quitting of one substance (tobacco smoking) can lead to the reduction and quitting of other poly-substance use. A Community-Based Participatory Action Research (CBPAR) approach can help at-risk youth feel safe and comfortable enough to provide personal information about their poly-substance use and engagement with treatment or harm reduction programs. This project will be a first step in increasing health equity among at-risk homeless youth in Downtown Ottawa. The investigators aim to follow a group of at-risk youth to while providing an appropriately modified PROMPT intervention, including peers support and a licensed mental health and substance use nurse.
Gender: All
Ages: 16 Years - Any
Updated: 2026-03-17
1 state
NCT03249428
Cytisine vs Nicotine Replacement Therapy
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.
Gender: All
Ages: 18 Years - Any
Updated: 2026-03-17
1 state
NCT06442423
Open-Label Psilocybin Study in Transdiagnostic Population
The primary objective of this study is to investigate the safety, feasibility, and tolerability of psilocybin treatment in individuals with functional impairment due to psychiatric symptoms. The secondary objective of this study is to determine whether individuals with functional impairments due to psychiatric symptoms will experience statistically significant symptom reduction and functional improvement from baseline symptom measurements (Visit 3) to 1-week (Visit 7), 4-weeks (Visit 8), and 6-weeks (Visit 9) post dosing. The investigators will recruit individuals with mood, anxiety, trauma, addictive, or related symptomatology, and who have functional impairment associated with these symptoms. A DSM-5 diagnosis is not required (nor is it an exclusion). The investigators will allow for comorbidity and only exclude based on psychological and physiological safety considerations. Critically, this approach will allow us to assess the tolerability of our interventions in individuals who would typically be excluded from efficacy studies due to various comorbid DSM-5 conditions. The investigators will employ an open-label study where participants will be given one dose of oral psilocybin 25mg. The investigators will also have follow-up visits at 1, 4, and 6 weeks and an optional long-term follow-up at 3, 6, and 12 months.
Gender: All
Ages: 18 Years - Any
Updated: 2026-03-11
1 state
NCT05486234
CARS: Cannabis and Alcohol Reduction Study
The study will test a computerized treatment with subjects ages 13-17 years who are seeking treatment for alcohol and/or cannabis use. Follow-up assessments will be conducted at one- and three-months following treatment.
Gender: All
Ages: 13 Years - 17 Years
Updated: 2026-03-09
1 state
NCT05414344
A Brief Intervention for Alcohol Users With Interpersonal Trauma
The current proposal aims to enhance a mobile-delivered brief intervention for young adults with heavy alcohol use and interpersonal trauma by including adaptive coping strategies for managing trauma-related distress and using peer coaches after delivery of the intervention to maintain treatment gains. Individuals will be randomized to a modified brief intervention incorporating with peer coaches, a standard brief intervention, or assessment only. Participants will be followed up at 3 and 6 months post intervention. The investigators hypothesize that the trauma-informed and peer-supported brief intervention (TIPS-BI) will show low levels of dropout, will be perceived positively by participants, and will result in greater reductions in alcohol use compared to a standard brief intervention and assessment only.
Gender: All
Ages: 18 Years - 25 Years
Updated: 2026-02-27
1 state
NCT06785311
Native Spirit: Significant Aim 3: Intervention
The proposed research will used community-based participatory research methods in an urban-based American Indian (AI) community to adapt, implement, and evaluate an after-school program, called Native Spirit (NS), that seeks to improve cultural identity, self-esteem, resilience, and prevent substance use by increasing cultural engagement. Prior research suggests that AI youth that are culturally engaged experience better health outcomes. Additionally, the use of culturally-specific after-school programs has been shown to increase feasibility and sustainability of prevention programs. In order to achieve the goals of this proposed study, the Principal Investigator (PI) will work with local community members and existing tribal partners to implement the 10-session culturally-grounded after-school program and evaluate the program with the following aims: Specific Aim 3 (R00): Examine the effectiveness of NS (increases exposure to local cultural values and activities), a program that seeks to prevent or decrease substance use by strengthening self-esteem, resilience, and cultural identity with 2 Indigenous communities in Arizona using a wait-list control design with 3 data collection timepoints and participant interviews.
Gender: All
Ages: 12 Years - 17 Years
Updated: 2026-02-17
1 state
NCT07409350
A Social Network Approach to Improve HIV Prevention and Substance Use Treatment For People Who Use Drugs
This study includes finalization of the LINKED social network intervention to improve PrEP and MOUD uptake among people who inject drugs (PWID) in collaboration with an Expert Advisory Board and staff (N=16) at The Sidewalk Project (TSP), followed by a Hybrid Type II cluster randomized trial of the LINKED intervention (versus an equal-attention control) among N=372 people who inject drugs, with 6- and 12-month follow-up assessment of PrEP and MOUD uptake. The investigators will also evaluate implementation outcomes to inform future sustainable implementation of LINKED in harm reduction organizations.
Gender: All
Ages: 18 Years - Any
Updated: 2026-02-13
3 states
NCT04927143
Encouraging Abstinence Behavior in a Drug Epidemic: Optimizing Dynamic Incentives
Combatting the rise of the opioid epidemic is a central challenge of U.S. health care policy. A promising approach for improving welfare and decreasing medical costs of people with substance abuse disorders is offering incentive payments for healthy behaviors. This approach, broadly known as "contingency management" in the medical literature, has repeatedly shown to be effective in treating substance abuse. However, the use of incentives by treatment facilities remains extremely low. Furthermore, it is not well understood how to design optimal incentives to treat opioid abuse. This project will conduct a randomized evaluation of two types of dynamically adjusting incentive schedules for people with opioid use disorders or cocaine use disorders: "escalating" schedules where incentive amounts increase with success to increase incentive power, and "de-escalating" schedules where incentive amounts decrease with success to improve incentive targeting. Both schemes are implemented with a novel "turnkey" mobile application, making them uniquely low-cost, low-hassle, and scalable. Effects will be measured on abstinence outcomes, including longest duration of abstinence and the percentage of negative drug tests. In combination with survey data, variation from the experiment will shed light on the barriers to abstinence more broadly and inform the understanding of optimal incentive design.
Gender: All
Ages: 18 Years - Any
Updated: 2026-02-12
1 state