Substance Use Disorders

75

Review clinical trials related to Substance Use Disorders. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

The Effect of Comorbid Alcohol/Substance Use

Study Design This study was designed as a comparative, cross-sectional case-control study examining the effect of comorbid alcohol and substance use disorder (ASUD) on clinical course and social inclusion among individuals with severe mental illness followed at a Community Mental Health Center (CMHC). The study did not involve any interventions. Aim The aim of this study is to examine the effect of comorbid alcohol and substance use on clinical course parameters-such as number of hospitalizations and medication dosages-and on social inclusion indicators-such as employment, social participation, and social adjustment-among individuals with severe mental illness followed at the CMHC, in comparison with a matched control group without substance use. Research Questions What are the rates of comorbid alcohol and substance use among patients with severe mental illness followed at the CMHC? What are the current addiction symptoms, number of hospitalizations, and employment rates among individuals with severe mental illness and comorbid ASUD? What is the level of continuity of CMHC engagement and social participation among individuals with severe mental illness and comorbid ASUD, and what factors influence it? How does the level of social inclusion among individuals with severe mental illness and comorbid ASUD compare with that of individuals without ASUD? Hypotheses H1: The average annual number of hospitalizations among individuals with a dual diagnosis (severe mental illness + ASUD) followed at the CMHC is significantly higher than among those without substance use. H2: Among individuals with a dual diagnosis, the daily medication doses (e.g., chlorpromazine equivalents) required to control psychotic or manic symptoms are higher than in the control group. H3: Social inclusion is lower among patients with substance use compared with the control group. H4: Employment rates among individuals with a dual diagnosis are significantly lower than among those with severe mental illness alone. H5: Substance use negatively affects patients' social participation, including involvement in activities and friendships. H6: Attendance rates at CMHC workshops and rehabilitation programs are lower among individuals with substance use compared with the control group.

Participants needed: 297
Trial details
Age: 18-65Biological sex: AllType: ObservationalSponsor: Abant Izzet Baysal UniversityUpdated: Jul 13, 2026Locations: 1
Eligibility criteria

Being 18 years of age or older, [+2]

Individuals diagnosed with organic brain damage or neurodevelopmental disorders... [+1]

Status: Recruiting

Impact of Federal and State Medications for Opioid Use Disorder (MOUD) Policy Changes During the Pandemic

"Gold-standard" medications for opioid use disorder (MOUD) treatment combines FDA-approved medications, primarily methadone and buprenorphine, with behavioral therapies to provide "whole-patient" treatment. Prior to the pandemic, methadone and buprenorphine were subject to greater federal regulations than medications for other substance use disorders, including medication for alcohol use disorder (MAUD), which created barriers to MOUD initiation and retention. These barriers were exacerbated by physical distancing and diminished clinic capacities during the COVID-19 pandemic. To prevent healthcare disruption and expand access to MOUD treatment during the public health emergency, federal and state authorities implemented several MOUD policy changes during the pandemic to reduce barriers to MOUD initiation and retention, which subsequently became permanent. This study is an evaluation of the impacts of these policies on treatment use, retention, and patient outcomes pre- and post-MOUD policy implementation.

Participants needed: 185,810
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Boston UniversityUpdated: Jul 2, 2026Locations: 1
Eligibility criteria

Substance use disorder (alcohol and/or opioid) documented in the Veteran's Healt...

None

Status: Not yet recruiting

Supporting Treatment Access and Recovery in Re-entry (STAR-R)

This application is aimed at testing a multicomponent intervention called "Maintaining Independence and Sobriety through Systems Integration, Outreach, and Networking-Criminal Justice (MISSION-CJ) or Peer Linkage Support post-release from two jails in Massachusetts for individuals with co-occurring substance use and mental health disorders (COD), given high rates of COD among incarcerated populations. The research will examine engagement in treatment, behavioral health outcomes, mediators and moderators, an economic analysis, and facilitators and barriers of MISSION-CJ implementation.

Participants needed: 240
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: University of Massachusetts, WorcesterUpdated: Jul 1, 2026Locations: 2
Eligibility criteria

18 years or older; [+3]

Are acutely suicidal based on the CSSRS; or [+1]

Status: Recruiting

Clinical and Neurobehavioral Changes With Weight Loss Drug Discontinuation and Reinitiation

The goal of this clinical study with research procedures is to learn how stopping and restarting tirzepatide (a medication that helps regulate blood sugar and appetite) affects brain activity, behavior, and health in adults ages 18-70 who are currently taking tirzepatide. Specifically, the study aims to examine how a short pause in tirzepatide affects hunger, mood, sleep, and daily functioning; how stopping and restarting tirzepatide alters brain chemistry and brain responses to food-related images; and how these changes relate to health measures such as quality of life and emotional well-being. There is no comparison group; instead, researchers will assess changes within each participant across three time points: while taking tirzepatide, after stopping it for 3-4 weeks, and after restarting it for 6-8 weeks. Participants will attend three in-person visits lasting approximately 3-4 hours each, during which they will complete interviews, questionnaires, and cognitive tasks; provide a urine sample (pregnancy screening for females); undergo a brain scan using magnetic resonance imaging (MRI) and MR spectroscopy (MRS); and receive a kit to provide a small stool sample. Participants will also complete two brief check-in phone calls between visits and the online BrainHealth Index between sessions, which includes surveys and cognitive tasks. All changes to tirzepatide use will occur under the supervision of a study physician to support participant safety and comfort, and the total study duration is approximately 13 weeks.

Participants needed: 40
Trial details
Age: 18-70Biological sex: AllType: InterventionalSponsor: The University of Texas at DallasUpdated: Jun 26, 2026Locations: 1
Eligibility criteria

Aged 18-70 years. [+4]

History of major neurological or psychiatric disorders, including substance use... [+18]

Status: Recruiting

Exablate for LIFU Neuromodulation in Patients With Opioid Use Disorder (OUD) and/or Other Substance Use Disorders (SUDs)

The purpose of this clinical trial is to investigate Low Intensity Focused Ultrasound (LIFU) using the Exablate® Model 4000 Type 2.0/2.1 as an adjunctive neuromodulatory treatment for OUD (Opioid Use Disorder) and/or other Substance Use Disorders (SUDs) by assessing its safety and tolerability in subjects with OUD.

Participants needed: 29
Trial details
Age: 18-60Biological sex: AllType: InterventionalSponsor: InSightecUpdated: Jun 26, 2026Locations: 4
Eligibility criteria

Males and non-pregnant females, age 18 - 60 years old [+8]

Subjects who are taking medications which may adversely interact with MOUD (See... [+34]

Status: Recruiting

Shared Decision Making to Treat Or Prevent (STOP) HIV in Criminal Legal Involved Populations (R33)

This study seeks to compare the effectiveness of two Patient Navigation models of care to evaluate the proportion who initiate PrEP/ART and substance use/substance use disorder (SU/SUD) treatment. A standardized Patient Navigation (PN) arm will be compared with a shared decision-making model in the form of Patient Choice (PC) through the offer of a menu of existing community-based health service delivery options. This design will offer providers, correctional and public health authorities, payers and policy makers' timely and relevant data to assess the effectiveness of Patient Navigation and Patient Choice models of care as potentially useful re-entry and relapse prevention treatment options.

Participants needed: 400
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Yale UniversityUpdated: Jun 25, 2026Locations: 4
Eligibility criteria

able to provide written informed consent in English or Spanish; [+5]

severe medical or psychiatric disability making participation unsafe; [+2]

Status: Recruiting

Mitigating the Impact of Stigma and Shame Among People Living With HIV and Substance Use Disorders

People living with HIV and substance use disorders (SUDs) are less likely to be virally suppressed, which can lead to HIV transmission and negative health outcomes. This hybrid type 1 study will assess the efficacy, mechanisms, as well as facilitators and barriers to implementing the MATTER intervention, a virtually delivered 5-session text-enhanced psychobehavioral intervention designed to facilitate viral suppression by addressing internalized stigma and shame as barriers to engagement in HIV care among individuals living with HIV and SUDs in two locations with different levels of HIV resources (i.e., the Boston, Massachusetts and Miami, Florida metro areas). MATTER aims to mitigate the negative behavioral consequences of internalized stigma and shame on viral suppression by a) developing behavioral self-care goal setting skills and related self-efficacy, b) increasing metacognitive awareness (i.e., non-judgmental awareness of emotions and cognitions), and c) teaching and reinforcing compassionate self-restructuring (i.e., self- compassion), in addition to providing access to phone-based resource navigation. Scalable interventions such as MATTER are essential to our efforts to end the HIV epidemic in high priority regions.

Participants needed: 256
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Boston UniversityUpdated: Jun 23, 2026Locations: 2
Eligibility criteria

HIV+ [+9]

Status: Recruiting

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.

Participants needed: 80
Trial details
Age: 14-17Biological sex: AllType: InterventionalSponsor: Indiana UniversityUpdated: Jun 22, 2026Locations: 1
Eligibility criteria

14-17 year old youth [+3]

Youth has a history of Fetal Alcohol Spectrum Disorder, intellectual disorders,... [+3]

Status: Not yet recruiting

Enhancing Addiction Treatment Through Psychoeducation

Addiction is a brain disorder characterized by a broad range of both apparent and subtle cognitive impairments in attention, memory, executive functions, and decision-making. These cognitive problems are clinically significant and may contribute to poor treatment outcomes in people with Substance Use Disorders (SUDs), such as a high risk of dropout, low treatment compliance, and shorter periods of abstinence. Studies on cognitive function in SUDs reveal that chronic use of drugs and alcohol can also negatively affect another crucial component of cognition: awareness, or metacognition. Metacognition is defined as an individual's ability to perceive and understand their cognitive functions and use this understanding to regulate them. One of the key consequences of metacognitive impairments is the lack of insight in people with SUDs, which adversely affects treatment outcomes. Substance users with poor metacognition are more reluctant to initiate or continue treatment and are more likely to deny their cognitive problems. Therefore, improving metacognition may remove or reduce motivational barriers to invest time and effort in the recovery process in general, and in the brain recovery process specifically. Despite the importance of neurocognition and metacognition in the recovery process for substance users, there is a dearth of interventions designed to target these functions.

Participants needed: 40
Trial details
Age: 18-65Biological sex: AllType: InterventionalSponsor: Virginia Commonwealth UniversityUpdated: Jun 9, 2026Locations: 1
Eligibility criteria

current DSM-5 opioid and/or stimulant use disorder [+2]

current psychosis, mania, or suicidal/homicidal ideation [+1]

Status: Recruiting

Development and Evaluation of a Virtual Reality Tool for At-Risk Trauma-Exposed Young People

This is a multi-phased study, funded through a National Institute on Drug Abuse (NIDA) K24 grant that aims to ultimately refine a virtual reality tool through qualitative and quantitative research targeting HIV and substance abuse risk behavior among at-risk young people who have experienced psychosocial trauma. Participants eligible for this study include young men who have sex with men (YMSM)/individuals who are romantically/physically attracted to men and adolescents with substance use disorder (SUD) between the ages of 15 - 30 and have experienced at least one traumatic event in their lifetime. Frontline healthcare workers who work within these populations are eligible for the study as well.

Participants needed: 50
Trial details
Age: 15-30Biological sex: AllType: InterventionalSponsor: Medical University of South CarolinaUpdated: Jun 10, 2026Locations: 1
Eligibility criteria

Someone who identifies as a YMSM or identifies as someone with romantic or physi... [+13]

exhibits psychotic symptoms; [+4]

Status: Recruiting

tAN for Substance Use Disorder

The study will involve a 5-day tAN treatment to attenuate alcohol withdrawal syndrome (AWS) and alter resting state functional connectivity (RSFC) between OFC and striatum in patients with alcohol use disorder (AUD). Enrolled participants will wear the tAN device on-site (at The Menninger Clinic) for the 5-day detox treatment period. Participants with AUD will be single-blinded randomized into 2 groups - a treatment group (active tAN) and a placebo group (sham tAN). Each group will consist of five separate time points - admission, screening, baseline, tAN treatment, and post tAN treatment. Clinical measures collected before, during, and after treatment will include alcohol withdrawal severity, craving, benzodiazepine usage, and assessments of depression and suicidal behaviors. Participants will undergo MRI scans before and after the treatment period to assess changes in brain connectivity and their relationship to clinical outcomes.

Participants needed: 20
Trial details
Age: 18-64Biological sex: AllType: InterventionalSponsor: Spark Biomedical, Inc.Updated: Jun 2, 2026Locations: 1
Eligibility criteria

Male or female (evenly recruited) aged 18-64 years old [+8]

In the opinion of the clinician and the research team at admission, be expected... [+4]

Status: Recruiting

Efficacy of an EMDR App for PTSD and SUD

The current proposal is aimed to confirm the efficacy of this novel therapeutic method (autonomous eye movement desensitization and reprocessing; A-EMDR) in a patient group (PTSD and SUD), and to assess the feasibility of the application within this group. While there is no basis to assume lower efficacy of the treatment with this population, confirming that hypothesis is an important and helpful step before a full-performance research study can be initiated. Furthermore, this study proposal will provide additional information regarding the feasibility for this population, which will allow for a more tailored approach in future study.

Participants needed: 24
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Centre for Addiction and Mental HealthUpdated: May 22, 2026Locations: 1
Eligibility criteria

Aged 18-years old or older [+4]

Diagnosis of a severe or unstable mental illness that precludes safe participati... [+1]

Status: Recruiting

The Collaborative Care PrTNER Study

A randomized controlled trial to assess the ability of a Collaborative Care Prevention, Treatment, Navigation, Engagement, Resource (PrTNER) intervention to increase initiation of preexposure prophylaxis (PrEP) (for those at-risk for HIV) and decrease viral load (for those living with HIV) among young aged 15 to 29 through engagement in SU treatment.

Participants needed: 275
Trial details
Age: 15-29Biological sex: MaleType: InterventionalSponsor: Children's Hospital of PhiladelphiaUpdated: May 18, 2026Locations: 2
Eligibility criteria

15-24 years old; [+11]

Assigned female sex at birth [+9]

Status: Not yet recruiting

Feasibility of an Interdisciplinary Intervention to Improve Care Transitions for Hospitalized Patients With Substance Use Disorders

The purpose of this study is to evaluate the feasibility and preliminary effectiveness of a primary care-based Interdisciplinary Addiction Care Transition (IntACT) team that will meet patients with substance use disorders (SUD) during a medical hospitalization and provide intensive care management, peer support, and interim SUD and medical care after discharge while facilitating a transition to long term community-based treatment.

Participants needed: 75
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Michael InczeUpdated: May 11, 2026Locations: 1
Eligibility criteria

Aged 18 years and older [+2]

Currently incarcerated [+1]

Status: Not yet recruiting

Recovery Inspired Support Engagement (RISE) Pilot

The goal of this clinical trial is to learn if a 1-on-1 support program is easy to complete and acceptable for people supporting loved ones who have recently received treatment for substance use. The main questions it aims to answer are: How many people complete the program? How satisfied are people with the program? Participants will: Complete weekly telehealth sessions for 12 weeks Complete surveys/interviews at the beginning, in the middle (\~week 6), at the end of the program (\~week 12), and 12-weeks after the end of the program Complete a focus group or interview

Participants needed: 18
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Mclean HospitalUpdated: Apr 28, 2026
Eligibility criteria

Ages 18+. [+12]

DSM-5 moderate or severe substance use disorder in the past year. [+5]

Status: Recruiting

Peer-Delivered Behavioral Activation in a CCBHC

Low-income individuals have limited access to evidence-based interventions for mental health. Peer recovery specialists, individuals in recovery from mental health and/or substance use problems, have the potential to increase access to evidence-based interventions for individuals from low-resource communities, particularly when trained and supervised in models that are acceptable and feasible in these communities. This study will examine the effectiveness and implementation potential of a peer-delivered evidence-based intervention (Behavioral Activation) among individuals receiving services from a community-based treatment setting providing integrated physical and behavioral healthcare.

Participants needed: 250
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Wayne State UniversityUpdated: Apr 17, 2026Locations: 1
Eligibility criteria

Age 18 years old or older [+1]

Active, under treated psychotic symptoms or mania that would interfere with part... [+1]

Status: Recruiting

Prevent Language Delays and Disorders Among Children of Caregivers With Substance Use Disorders With Community Groups and Individualized Services

The goal of this clinical trial is to test ways to improve early language development among young children of parents with substance use disorder (SUD). Children of parents with SUD are at increased risk for language delays, and early supports may help prevent long-term learning challenges. This study will examine whether adding additional supports to group-based parenting intervention improves child language outcomes compared to the group intervention alone.

Participants needed: 244
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: University of OregonUpdated: Apr 20, 2026Locations: 1
Eligibility criteria

Self-reported lifetime history of substance use disorder treatment and/or [+11]

Status: Recruiting

Family Support Protocol for Adolescent Internalizing Disorders

This R34 will develop and test an adjunctive treatment protocol for addressing co-occurring internalizing disorders among adolescents enrolled in usual care for substance use problems. Internalizing disorders (ID), primarily depression and anxiety, are highly prevalent among youth receiving community-based treatment for substance use disorder (SUD). Comorbidity rates range from 30-70% due to the multiple developmental pathways by which adolescent SUD and ID cause and exacerbate one another. Moreover, unresolved ID issues significantly interfere with youth SUD treatment and recovery processes. Yet, the youth SUD clinical workforce is not systematically educated or trained in evidence-based practices for ID; thus, line services for youth SUD do not systematically target ID. The research literature offers a few integrated behavioral models for simultaneously treating both SUD and ID in youth; however, such models feature intensive manualized procedures that have proven cumbersome to scale and deliver in frontline settings. As a result, the clinical workforce, though desiring ID-focused training, currently has inadequate resources for treating ID effectively. A promising solution to diminish this quality gap is developing an adjunctive, modular protocol to augment routine care for comorbid SUD/ID by directly targeting ID as a key treatment goal: Family Support Protocol for Adolescent Internalizing Disorders (Fam-AID). As an adjunctive protocol, Fam-AID will not require clinicians to markedly alter existing base practices for SUD. It will be anchored by three evidence-based foundations for treating co-occurring adolescent ID. First, it prioritizes family engagement in services and family-oriented treatment goals, which have been shown to enhance outcomes for youth SUD and ID alike. Second, it is a modular protocol that features core elements of manualized treatment for ID; core element interventions enhance treatment effectiveness by fostering implementation feasibility and sustainability in usual care. Third, it seeks to reinforce the family safety net to prevent teen self-harm. In accord with these foundations, and pending pilot development, we anticipate that Fam-AID will contain five treatment modules that can be delivered in any sequence to meet client needs: (1) Family Engagement of caregivers and primary supports in treatment planning and services; (2) Relational Reframing of family constraints, resiliencies, and social capital connected to the youth's ID symptoms; (3) Functional Analysis of the youth's ID symptoms and related behaviors; (4) Cognitive-behavioral therapy (CBT) core techniques to address the youth's ID symptoms and functional needs, featuring three transdiagnostic interventions (emotion acceptance, emotional exposure, behavioral activation) to address negative affect and emotional dysregulation underlying both depression and anxiety; and (5) Family Psychoeducation and Safety Planning focused on education about comorbid SUD/ID and prevention of youth self-harm. All interventions featured in each module have strong empirical support. The Fam-AID protocol will contain several innovations intended to boost treatment feasibility and impact for this vulnerable group. Aligned with the core elements strategy, it will be designed for uptake by all motivated clinicians regardless of their clinical orientation and training. It will use evidence-based family engagement techniques to systematically integrate caregivers in the treatment process; typically, families are not centralized in SUD services for youth despite compelling empirical and clinical rationale to do so. It will feature a treatment customization exercise in which clients and therapists collaboratively select CBT techniques to integrate in ongoing treatment based on functional ID assessment. To achieve study aims we will first develop a Fam-AID implementation toolkit during a three-part Pilot Phase at one pilot site: (a) Solicit provider input on Fam-AID components; (b) Create video-based training and fidelity procedures, leveraging the PI's existing online therapist training and consultation resources in core CBT techniques for adolescent SUD, as well as the Co-I's equivalent training resources for adolescent ID; (c) Pilot the toolkit with 4-6 clients. In Years 2-3 we will conduct an Interrupted Time Series Study for N = 60 SUD/ID cases across two sites serving diverse youth: 30 will receive TAU, and then following line staff training, 30 new cases will receive TAU enhanced by adjunctive Fam-AID. Aim 1: Feasibility will examine Fam-AID cases for acceptability via client and therapist interviews and fidelity benchmarks via therapist- and observer-report of module coverage and protocol dose. Aim 2: Outcomes will test TAU vs. TAU + Fam-AID for immediate impact on family member attendance and ultimate impacts on adolescent ID symptoms at 3- and 6-month follow-up.

Participants needed: 60
Trial details
Age: 13-21Biological sex: AllType: InterventionalSponsor: The National Center on Addiction and Substance Abuse at Columbia UniversityUpdated: Apr 17, 2026Locations: 4
Eligibility criteria

Youth is age 13-21. [+4]

Illness requiring hospitalization [+3]

Status: Recruiting

STEPS: Substance Use Trial of E-cigarettes or Pharmacotherapy for Smoking

The purpose of this study is to investigate whether non-cigarette tobacco products, namely e-cigarettes (nicotine vapes), can help people who smoke and are in treatment for substance use disorder quit smoking by switching completely to e-cigarettes as compared to FDA-approved medications, namely nicotine replacement therapy in the form of patches and lozenges. Participation will last 6 months and will include five in-person study visits and eleven virtual assessments. Participants will also complete a short daily diary on their phones each day for the first twelve weeks. To qualify, participants must be within 30 days of SUD treatment program admission. This study is being conducted at three outpatient SUD treatment programs across South Carolina. These sites include: 1) the Center for Drug and Alcohol Problems (CDAP) in Charleston, SC, 2) Behavioral Health Services of Pickens County (BHSPC) in Pickens, SC, and 3) Shoreline Behavioral Health Services in Conway, SC. the Medical University of South Carolina in Charleston, SC, Behavioral Health Services in Pickens, SC, and the Medical University of South Carolina in Florence, SC.

Participants needed: 240
Trial details
Age: 21+Biological sex: AllType: InterventionalSponsor: Medical University of South CarolinaUpdated: Apr 3, 2026Locations: 4
Eligibility criteria

21+ years of age, [+6]

any significant or unstable medical or psychiatric concern that would affect saf... [+4]

Status: Recruiting

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).

Participants needed: 120
Trial details
Phase: Phase 2Age: 18-65Biological sex: AllType: InterventionalSponsor: University of Texas Southwestern Medical CenterUpdated: Apr 1, 2026Locations: 5
Eligibility criteria

Be 18 to 65 years old [+4]

Have been in a research study of pharmacological or behavioral treatment for add... [+3]

Status: Recruiting

IMPOWR-ME Project 1: Trial of Yoga and Physical Therapy Onsite at Opioid Treatment Programs

This is a pragmatic, open label, randomized controlled trial with 1:1:1 allocation to 12 weeks of: (1) onsite yoga at opioid treatment programs (OTPs), (2) onsite physical therapy (PT) at OTPs, or (3) treatment as usual (TAU). Participants will be 180 individuals with chronic back pain receiving treatment for opioid use disorder (OUD) in community-based OTPs. Through research visits at screening, baseline, and months 1, 2, 3, 6, and 9, the investigators will evaluate pain and opioid use outcomes and implementation outcomes.

Participants needed: 180
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Albert Einstein College of MedicineUpdated: Mar 31, 2026Locations: 1
Eligibility criteria

age ≥18 years old [+5]

severe disabling conditions that could make participation in yoga or PT hazardou... [+3]

Status: Not yet recruiting

Psilocybin Assisted Psychotherapy for Treatment Resistant Depression and Co-occurring Substance Use Disorder

The goal of this clinical trial is to learn if a single dose of psilocybin (5mg Vs 10mg Vs 25mg) alongside psychotherapy is safe and can help treat treatment resistant depression (TRD) with co-occurring substance use disorder (SUD) in veterans and first responders. We seek to answer: * Whether 5mgs, 10mgs and 25mgs of psilocybin are safe in individuals with co-occurring TRD and SUD * Whether psilocybin assisted psychotherapy will reduce substance use severity and depression symptoms * What neurobiological processes are associated with the effects of psilocybin assisted psychotherapy. The researchers will compare the effects of a single dose of psilocybin (either 5mgs or 10mgs or 25mg) alongside psychotherapy on substance use severity and depression symptoms over six weeks in veterans and first responders with TRD and co-occurring SUD. In this 14-week study, participants will: * Visit the clinic for two intake sessions * Complete seven psychotherapy sessions. This will include three sessions before psilocybin administration, an 8 to 10 hour dosing session, and three sessions following psilocybin administration * Complete short, repeated daily assessments for six weeks, in total, before and after psilocybin administration * Complete two brain scans before and after psilocybin administration

Participants needed: 50
Trial details
Phase: Phase 1, Phase 2Age: 18-70Biological sex: AllType: InterventionalSponsor: Indiana UniversityUpdated: Mar 30, 2026Locations: 2
Eligibility criteria

Not listed

Status: Recruiting

Smoking Cessation and Menstrual Cycle Phase

Tobacco use is a risk factor for at least 20 types of cancer and remains the leading preventable cause of cancer in Canada. Smoking cessation is an important cancer prevention strategy for the close to 2 million Canadian women who currently smoke. However, findings from controlled trials and real-world clinical settings indicate that women have greater difficulty achieving abstinence following a quit attempt than men. There is some evidence that hormonal levels and fluctuations throughout the menstrual cycle (MC) may contribute to the greater difficulty women experience when trying to quit smoking. In this study, the start of a quit attempt using nicotine replacement therapy (NRT) will be targeted to specific phases of MC. It was hypothesized that starting a quit attempt during the first half of MC (follicular phase) will result in increased quit success compared to starting during the second half of MC (luteal phase) or the usual practice of not targeting quit start date to MC phase.

Participants needed: 1,200
Trial details
Phase: Phase 4Age: 18-40Biological sex: FemaleType: InterventionalSponsor: Centre for Addiction and Mental HealthUpdated: Mar 19, 2026Locations: 1
Eligibility criteria

Must provide informed consent following the CAMH REDCap e-consent framework and... [+6]

Current use of progesterone, estrogen, testosterone, or fertility treatment; [+11]

Status: Not yet recruiting

Evaluation of the Safety and Effects of Psychoactive Substances in People With Past Opioid Use

The purpose of this study is to understand how kratom affects people. In this study, kratom will be compared with another substance and a placebo (an inactive substance). Researchers will also study how the substances move through and affect the body. This includes examining how the body absorbs, processes, and eliminates the drug (pharmacokinetics), as well as how the drug affects the body and how it may make you feel (pharmacodynamics). The information collected will help researchers better understand the effects and potential risks of kratom.

Participants needed: 72
Trial details
Phase: Phase 1Age: 18-55Biological sex: AllType: InterventionalSponsor: Christopher D. VerricoUpdated: Mar 13, 2026Locations: 1
Eligibility criteria

English-speaking, 18- to 55-year-old males or females. [+13]

Seeking treatment for a substance or alcohol use disorder as determined by self-... [+20]

Status: Recruiting

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.

Participants needed: 52
Trial details
Age: 13-17Biological sex: AllType: InterventionalSponsor: Medical University of South CarolinaUpdated: Mar 9, 2026Locations: 1
Eligibility criteria

between the ages of 13 and 17 [+3]