Substance Use Disorder

13

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

Condition / disease
Location
Status: Not yet recruiting

Olfactory Function and Model-Based Behavior in People Living With HIV and SUD

Background: Human immunodeficiency virus (HIV) infection can affect areas of the brain that control thinking ability. These same areas of the brain also control the sense of smell. HIV infection is common in people with substance use disorder (SUD). SUD also affects thinking ability. Researchers want to learn more about the connection between the sense of smell and decision-making ability in people with HIV, SUD, or both. Objective: To test the sense of smell in people with HIV and/or SUD and how they make choices based on odors. Eligibility: People aged 18 to 65 years with any of these: (1) HIV, (2) SUD, (3) both HIV and SUD, or (4) neither SUD nor HIV. Design: Participants will have 2 visits. Each visit will last 3 to 5 hours. In visit 1, participants will have a blood draw and a saliva swab. They will answer questions about their health, sleep habits, food intake, and substance use. They will have smell tests: They will smell scented sticks and answer questions about them. They will be blindfolded for some tests. They will perform tasks on a computer. They will look at pictures and smell pleasant food odors, such as chocolate cake or pizza. Smells will be delivered using a nasal mask. Their sniffing and breathing will be measured. They may also be exposed to odor-free air. They will eat food that corresponds to one of the food odors they smelled. In visit 2, participants will do a saliva swab and a different computer task that involves odors. They will also have tests of their attention and memory. Participants may opt to have an imaging scan of the brain.

Participants needed: 120
Trial details
Age: 18-65Biological sex: AllType: ObservationalSponsor: National Institute on Drug Abuse (NIDA)Updated: Jul 13, 2026Locations: 1
Eligibility criteria

Stated willingness to comply with all study procedures and availability for the... [+3]

History of neurological illnesses or neurosurgery including but not limited to c... [+10]

Status: Not yet recruiting

Olfactory Function and Model-Based Behavior in People Living With HIV and SUD

Background: Human immunodeficiency virus (HIV) infection can affect areas of the brain that control thinking ability. These same areas of the brain also control the sense of smell. HIV infection is common in people with substance use disorder (SUD). SUD also affects thinking ability. Researchers want to learn more about the connection between the sense of smell and decision-making ability in people with HIV, SUD, or both. Objective: To test the sense of smell in people with HIV and/or SUD and how they make choices based on odors. Eligibility: People aged 18 to 65 years with any of these: (1) HIV, (2) SUD, (3) both HIV and SUD, or (4) neither SUD nor HIV. Design: Participants will have 2 visits. Each visit will last 3 to 5 hours. In visit 1, participants will have a blood draw and a saliva swab. They will answer questions about their health, sleep habits, food intake, and substance use. They will have smell tests: They will smell scented sticks and answer questions about them. They will be blindfolded for some tests. They will perform tasks on a computer. They will look at pictures and smell pleasant food odors, such as chocolate cake or pizza. Smells will be delivered using a nasal mask. Their sniffing and breathing will be measured. They may also be exposed to odor-free air. They will eat food that corresponds to one of the food odors they smelled. In visit 2, participants will do a saliva swab and a different computer task that involves odors. They will also have tests of their attention and memory. Participants may opt to have an imaging scan of the brain.

Participants needed: 120
Trial details
Age: 18-65Biological sex: AllType: ObservationalSponsor: National Institute on Drug Abuse (NIDA)Updated: Jul 2, 2026Locations: 1
Eligibility criteria

Stated willingness to comply with all study procedures and availability for the... [+3]

History of neurological illnesses or neurosurgery including but not limited to c... [+10]

Status: Recruiting

Defining Neurobiological Links Between Substance Use and Mental Illness

Background: Nicotine dependence leads to about 480,000 deaths every year in the United States. People with major depressive disorder (MDD) are twice as likely to use nicotine compared to the general population. They have greater withdrawal symptoms and are more likely to relapse after quitting compared with smokers without MDD. More research is needed on how nicotine affects brain function in those with MDD. Objective: To understand how nicotine affects symptoms of depression and related brain function. Eligibility: People aged 18 to 60 years, at the time of consent, with and without MDD who do not smoke cigarettes or use other nicotine products. Design: Participants will have 2 or 3 study visits over 1 year. Participants will have 2 MRI scans no less than 4 days apart. Each scan visit will last 5 to 7 hours. At each scan, they will have urine and breath tests to screen for recent use of alcohol, nicotine, and illegal drugs. Before each scan, they will take 1 of 2 medications: nicotine or placebo. Participants will receive each medication once. They will not know which medication they are receiving at each scan. For each MRI scan, they will lie on a table that slides into a cylinder. Sometimes they will be asked to lie still. Sometimes they will complete tasks on a computer. Tasks may include identifying colors or playing games to win money. Each scan will take about 2 hours. Participants will answer questions about their thoughts, feelings, and behaviors before and after each scan. They will have a blood test after each scan.

Participants needed: 620
Trial details
Age: 18-60Biological sex: AllType: InterventionalSponsor: National Institute on Drug Abuse (NIDA)Updated: Jun 23, 2026Locations: 1
Eligibility criteria

Able and willing to provide written informed consent. [+14]

Subjects with suicidal ideation where outpatient treatment is determined unsafe. [+26]

Status: Recruiting

Screening, Evaluation and Assessment (SEA) Protocol at the NIDA IRP

Background: People who will participate in research studies need to undergo proper screening, evaluation, and assessment (SEA). SEA helps keep those who participate in studies safe. It also helps ensure accurate study results. The National Institute on Drug Abuse (NIDA) Intramural Research Program (IRP) wants to screen people with alcohol and/or substance use disorders (ASUD) as well as people without ASUD for ongoing studies at NIDA in Baltimore, MD Objective: To screen people with or without ASUD for ongoing studies at NIDA. The ultimate goals are to learn why some people (1) use drugs; (2) stop using drugs; (3) use drugs but do not get addicted; and (4) never use drugs snd to develop ASUD treatments. Eligibility: People aged 18 years and older. They may (1) currently use nicotine, alcohol, opioids, cocaine, or other drugs; (2) no longer use them; or (3) have never used them. Design: Participants will have 1 screening visit that could last up to 8 hours. The visit may be split over more than 1 day. The duration of the screening may vary for each individual based on which studies they are interested in and screened for. The tests they undergo may vary and may include the following: * Physical exam. * Blood, saliva, and urine tests. * Breath samples that test for alcohol and carbon monoxide. * Test of heart function. * Smell test that measures sense of smell. * Tests of memory, attention, and thinking. * Mental health evaluation. * Mock magnetic resonance imaging (MRI) scan. * Questionnaires about alcohol and other drug use, mental health, medical history, and life in general.

Participants needed: 10,000
Trial details
Age: 18-99Biological sex: AllType: ObservationalSponsor: National Institute on Drug Abuse (NIDA)Updated: Jun 3, 2026Locations: 1
Eligibility criteria

Age 18-99 years old. [+3]

Status: Not yet recruiting

Employing Peer Outreach and Whole Health in Recovery for Homeless-Experienced Veterans

Homelessness is a national crisis in the United States, particularly in the veteran population. Due to multiple chronic conditions, homeless individuals frequently become hospitalized or are treated in emergency departments. Care engagement can mitigate this risk. Interventions grounded in evidence-based practices of peer support and whole health are effective for increasing care engagement. However, implementation of such interventions with high-acuity patients often requires strategies that are intensive and costly. This trial will evaluate the relative impacts and costs of using a high-intensity (vs. low-intensity) strategy to implement a peer-led, whole health intervention for homeless-experienced veterans in permanent supportive housing.

Participants needed: 278
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: VA Office of Research and DevelopmentUpdated: Apr 9, 2026Locations: 1
Eligibility criteria

Eligible patients will be identified from VA's Homeless Registry "Hot Spot" repo... [+4]

Not flagged on the VA's Homeless Registry Hot Spot Report [+3]

Status: Not yet recruiting

Psychosocial Factors in Dual Diagnosis in a General Hospital

Dual diagnosis, defined as the co-occurrence of a mental disorder and a substance use disorder, is frequently associated with increased clinical severity, functional impairment, and poorer health outcomes. Identifying psychosocial protective factors related to better clinical and functional outcomes is essential to improve patient care and treatment planning. The aim of this observational, cross-sectional, single-center study is to analyze psychosocial protective factors and their association with clinical-functional outcomes in hospitalized patients with dual diagnosis. The study will be conducted in a general hospital setting and will include adult inpatients diagnosed with dual diagnosis according to clinical criteria. Sociodemographic, clinical, and psychosocial variables will be collected using standardized assessment tools and clinical records. The results of this study are expected to contribute to a better understanding of psychosocial factors associated with clinical severity and functional outcomes in patients with dual diagnosis, supporting more comprehensive and patient-centered care approaches.

Participants needed: 125
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Hospital Virgen del PuertoUpdated: Mar 2, 2026Locations: 1
Eligibility criteria

Adults (≥18 years). [+2]

Severe cognitive impairment or acute clinical condition preventing assessment. [+1]

Status: Not yet recruiting

Testing the CrOss Systems Technical Assistance for Retaining Staff (COSTARS) Model for Improving Staff Retention Among Child Welfare Workers and Peer Supporters, and Implementation of Evidence Based Interventions.

The goal of this study is to test whether the CrOss System Technical Assistance for Retaining Staff (COSTARS) supervision leadership institute can promote workforce stability and improved implementation outcomes within the Ohio START child welfare program. The main questions it aims to answer are: * Among supervisors, caseworkers, and family peer mentors, what is the effect of COSTARS on staff retention and perceptions of the work environment? * What is the effect of COSTARS on service timeliness, implementation fidelity, and parent outcomes within Ohio START? Researchers will compare public children services agencies implementing COSTARS to those implementing supervision practices as usual to see if there are differences between groups in the outcomes described above. Participating supervisors will: * Complete a 6-hour training workshop in the FOCUS model of supervision. * Participate in monthly group coaching sessions with other supervisors, for approximately one year. * Receive individualized feedback from coaches about their supervision performance.

Participants needed: 200
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Alicia BungerUpdated: Feb 27, 2026
Eligibility criteria

Adults employed as supervisors in child welfare agencies who are leading teams o...

Not involved in Ohio START

Status: Recruiting

Personalized Approach to Healthy Use and Recovery (PATH) Trial

An important part of substance use treatment for many people is learning what triggers their substance use and urges, and how they can better manage those triggers. In this study, the investigators will generate a model for each individual that shows likely causal links between their substance use, urges, and comorbid symptoms (e.g., anxiety, depression, and PTSD), and the investigators will examine these models as a group to draw conclusions about common causes for substance use (and recovery) among Veterans with substance use disorders. The investigators will also test whether receiving a personal model and clinical feedback improves substance use disorder and comorbid symptom outcomes. Results will include both patient-reported and statistically-determined causes of substance use for individuals and groups, clinical impact of a personalized model and feedback session, and participant feedback about the relevance of this study and intervention.

Participants needed: 74
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: VA Office of Research and DevelopmentUpdated: Jan 15, 2026Locations: 1
Eligibility criteria

Inclusion criteria for this study are intended to include most Veterans with SUD [+4]

exclusion criteria are being under the influence of a judgment-impairing substan... [+4]

Status: Recruiting

A Type I Hybrid Effectiveness-Implementation Trial of MIO

Mothers with substance use disorders face unprecedented stress in their roles as parents working to care for their children while maintaining healthy recovery. Mothering from the Inside Out (MIO) is the first attachment-based parenting intervention designed specifically for mothers in recovery from substance use disorders that has been shown to have benefit for both mother and child in multiple randomized controlled trials. This project will: (a) test the effectiveness of MIO among women in outpatient treatment under 'real-world' conditions, (b) evaluate implementation in different settings, and (c) assess key implementation factors to support optimal uptake and treatment in future dissemination studies; closing an important science-to-service gap for an underserved population in an effort to support maternal and child health simultaneously.

Participants needed: 200
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: Baystate Medical CenterUpdated: Jan 7, 2026Locations: 1
Eligibility criteria

Identifies as a woman [+4]

Have severe mental health problems (e.g., actively suicidal, homicidal, psychosi... [+17]

Status: Recruiting

A Digital Intervention to Decrease Self-Stigma Among Pregnant and Postpartum Women With Substance Use Disorder

Digital interventions have the potential to support healthier behaviors among pregnant and postpartum women (PPW) with substance use disorders (SUDs) and may also provide a promising method for reducing their self-stigma. Enhearten is a digital intervention designed to foster adherence to medications for addiction treatment (MAT) while considering the unique needs of PPW, but its effects on self-stigma, treatment retention, and SUD outcomes have not been rigorously tested. The investigators will conduct an individual-level multicenter randomized controlled trial to test the feasibility, acceptability, and efficacy of Enhearten on reducing self-stigma and on improving SUD treatment and recovery outcomes with a stigma-focused ecological momentary intervention (EMI) designed to: 1) screen for feelings of stigma and 2) counteract these vulnerabilities among PPW with SUD via just-in-time interventions.

Participants needed: 152
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: Washington University School of MedicineUpdated: Nov 26, 2025Locations: 1
Eligibility criteria

Pregnant women and new mothers (up to 12 months postpartum) [+4]

Status: Recruiting

OSA PAP Treatment for Veterans With SUD and PTSD on Residential Treatment Unit

Substance use disorder (SUD) and posttraumatic stress disorder (PTSD) frequently co-occur and having both disorders is associated with greater psychological and functional impairment than having either disorder alone. This is especially true in residential settings where both disorders are more severe than outpatient settings. Obstructive sleep apnea (OSA) is highly comorbid with both disorders and untreated OSA is associated with worse functional impairment across multiple domains, worse quality of life, worse PTSD, higher suicidal ideation, and higher substance use and relapse rates. Treating OSA with evidence-based positive airway pressure (PAP) in Veterans with SUD/PTSD on a residential unit is a logical way to maximize treatment adherence and treatment outcomes. This study compares OSA treatment while on a SUD/PTSD residential unit to a waitlist control group. The investigators hypothesize that treating OSA on the residential unit, compared to the waitlist control, will have better functional, SUD, and PTSD outcomes.

Participants needed: 194
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: VA Office of Research and DevelopmentUpdated: Nov 3, 2025Locations: 1
Eligibility criteria

a Veteran of the U.S. military or Reserve/National Guard member [+8]

have central sleep apnea (AHI >=5 and > 50% central apneas) [+3]

Status: Recruiting

Smoking Cessation CM for Veterans With or at Risk for Cancer

Tobacco use among US Veterans poses significant health problems and challenges to their overall well-being. The aim of this project is to evaluate the effectiveness of a program called Contingency Management (CM) in helping Veterans quit smoking during lung cancer screening or cancer care at VA clinics. CM is a behavioral treatment that uses rewards to encourage smoking cessation when verified through biological testing. In the first year, the researchers will develop a mobile CM protocol based on feedback from Veterans and healthcare staff through focus groups. In the second year, they will conduct a pilot study to test the feasibility of the mobile CM program along with counseling and medication for 20 Veterans over a five-week period. The success of the pilot study will determine whether to proceed with a larger randomized controlled trial (RCT) in years three to six, comparing the efficacy of mobile CM with standard treatment. The project will take place at SFVA.

Participants needed: 108
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: VA Office of Research and DevelopmentUpdated: Sep 30, 2025Locations: 1
Eligibility criteria

Human Subjects Involvement and Characteristics: This Proof of Concept and Clinic... [+15]

Current severe, untreated mental illness (i.e., psychosis, bipolar disorder, and... [+10]

Status: Recruiting

Successful Transitions and Reintegration Tools for Veterans (START-VETS)

This study will develop prison reentry materials for Veterans leaving prison.

Participants needed: 20
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: VA Office of Research and DevelopmentUpdated: Sep 26, 2025Locations: 1
Eligibility criteria

Veteran with mental illness and/or substance use disorder released from prison w...

psychosis or cognitive impairment precluding active participation