Tundra Space

Tundra Space

Clinical Research Directory

Browse clinical research sites, groups, and studies.

91 clinical studies listed.

Filters:

Substance Use

Tundra lists 91 Substance Use clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

This data is also available as a public JSON API. AI systems and LLMs are encouraged to use it for structured queries.

ACTIVE NOT RECRUITING

NCT06929520

The Development and Evaluation of a Culturally Grounded ENDS Intervention for Rural Hawaiian Youth

The purpose of this research proposal is to develop and evaluate a culturally grounded, ENDS prevention intervention for rural Hawaiian youth. This will be accomplished through two specific aims. AIM 1 (Years 1-3) are focused on pre-intervention and intervention development. In Year 1, youth focus groups will be conducted to assess the environmental demands related to ENDS use in rural Hawai'i. In Year 2, specific ENDS-related problem situations (i.e., situations that increase risk for ENDS use) will be extracted from the Year 1 focus groups and prioritized through survey methods with 200-250 predominately Native Hawaiian youth across 16 different middle/intermediate schools on Hawai'i Island. In Year 3, five situations found to be the most frequently experienced and/or difficult to manage by youth surveyed in Year 2 will serve as the foundation for the development of narrative scripts. Three of these scripts will be cast and filmed on location on Hawai'i Island by a professional film director, and will be edited into three short films, 6-8 video clips, and 6-8 professional photos or production stills. Similar to the investigators' prior drug prevention research in rural Hawai'i, classroom-based lessons will be created to support the short films. Additional lessons and videos from an evidence-based, culturally grounded substance abuse prevention curriculum for Hawaiian youth (Ho'ouna Pono) will be used to create a modular classroom curriculum. The video clips and professional photography/production stills will be embedded with prevention messaging, and will be used for a social and print media campaign to reinforce the classroom curriculum. AIM 2 (Years 4-5) is to evaluate the ENDS prevention intervention (classroom curriculum plus social/print media campaign) across all middle/intermediate public or public-charter schools (N = 16) and up to 11 different cultural immersion charter schools on Hawai'i Island using a dynamic wait-listed control group design.

Gender: All

Ages: 10 Years - 14 Years

Updated: 2026-05-22

1 state

E-cigarette Use
Substance Use
COMPLETED

NCT06008990

Maternal Brain Imaging in Opioid Use Disorder

This research study aims to learn more about opioid use disorder (OUD) during pregnancy and how outcomes for pregnant women and their newborns can be improved. During pregnancy, people with OUD are prescribed medication-assisted therapy (MAT). The investigators are interested to know how the medication is broken down by the body during pregnancy and how effective it is. The investigators also want to learn if this medication and OUD have any effect on the different parts of the brain when compared to mothers without OUD.

Gender: FEMALE

Ages: 18 Years - 100 Years

Updated: 2026-05-22

1 state

Opioid Use Disorder
Substance-Related Disorders
Substance Use
+3
NOT YET RECRUITING

NCT07599722

mHealth Service Linkage for Young Adults Impacted by the Criminal Legal System

This study is designed to test Project LYNX, a program designed to help young adults (ages 18-29) with recent criminal legal system involvement can find and get connected to substance use and HIV-prevention services in the community. The program combines support from a trained peer navigator with easy-to-use digital tools. The study will: * Adapt an existing navigator program by adding new digital (eHealth) tools that were co-developed with young adults. These tools will help navigators refer participants to the right health services. * Refine and test the updated program to make sure it works well and is easy to use. * Evaluate whether the program is feasible, acceptable, and helpful in linking young adults to substance use treatment and HIV-prevention services. The overall goal is to create a practical, user-friendly system that supports young adults find and get connected to services for substance use and HIV prevention that they need.

Gender: All

Ages: 18 Years - 29 Years

Updated: 2026-05-20

1 state

HIV Prevention
Substance Use
RECRUITING

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: 2026-05-19

1 state

Substance Use
Drug Use
RECRUITING

NCT06585631

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.

Gender: MALE

Ages: 15 Years - 29 Years

Updated: 2026-05-18

2 states

HIV
Substance Use Disorders
Substance Use
+1
RECRUITING

NCT06559774

The Hastiin Bidziil (Strong Man) Intervention

The Hastiin Bidziil (Strong man) Intervention study is part of a larger project called, Community-Driven Indigenous Research, Cultural Strengths \& Leadership to Advance Equity in Substance Use Outcomes (CIRCLE) Center of Excellence. CIRCLE aims to address drug use related health problems in collaboration with diverse Indigenous communities. This study is a randomized controlled trial study to measure the effectiveness of a secondary prevention program, called Hastiin Bidziil (Strong Man), aimed at reducing substance use among Native American Indian (AI) men ages 18 years and older

Gender: MALE

Ages: 18 Years - Any

Updated: 2026-05-14

1 state

Substance Use
COMPLETED

NCT05643027

A Novel Intervention for Patients With Cancer

This research study is being done to develop an intervention for psychological symptoms that patients diagnosed with cancer may experience. Psychological symptoms may include thoughts, feelings, emotions, and memories The names of the study intervention and research activities involved in this study are/is: * Acceptance \& Commitment Therapy (ACT) for Cancer (involving 6 sessions with a licensed clinical psychologist) * Questionnaires * Post-study interview Consistent with the NIH Stage Model for Behavioral Intervention Development, the investigators have adapted an existing, empirically-validated intervention, Acceptance and Commitment Therapy (ACT), to address substance use disorder risk during cancer care. The core components of ACT are particularly well-suited to address the psychological processes underlying opioid misuse in individuals treated for cancer pain. The overarching aim is to assess the feasibility and acceptability of the intervention by conducting a randomized pilot trial of the revised intervention ("ACTION") for cancer patients on opioid therapy, and at risk for SUD.

Gender: All

Ages: 18 Years - 99 Years

Updated: 2026-05-14

1 state

Substance Use
Cancer
Psychological
ACTIVE NOT RECRUITING

NCT05877729

Intervention for Virologic Suppression in Youth

The goal of this randomized clinical trial is to test the effect of a technology-based intervention with an Adaptive Treatment Strategy (ATS) among youth living with HIV (YLWH) (18-29 years old). This piloted and protocolized intervention combines: (1) brief weekly sessions with a counselor via a video-chat platform (video-counseling) to discuss mental health (MH), substance use (SU), HIV care engagement, and other barriers to care; and (2) a mobile health application (app) to address barriers such as ART forgetfulness and social isolation. Individuals who are not virologically suppressed will be randomized to video-counseling+app or standard of care (SOC). Through this study, the investigators will be able to: Aim 1: Test the efficacy of video-counseling+app vs SOC on virologic suppression in YLWH.The investigators will compare HIV virologic suppression of those randomized to the intervention vs control arms at 16 weeks via an RCT. Aim 2: Assess the impact of video-counseling+app vs SOC on MH and SU in YLWH. The investigators will evaluate the MH and SU differences between the intervention vs control arms at 16 weeks via an RCT. Aim 3: Explore an ATS to individualize the intervention by assigning the: 1. virologic "non-responders" in the intervention arm to intensified video-counseling+app for 16 more weeks, 2. virologic "responders" in the intervention arm to continue only app use for 16 more weeks. Researchers will compare the characteristics of virologic responders and non-responders to the intervention, individualization of the intervention based on these variables, and linkage to MH and SU treatment services among those in need to see if delivery of care is enhanced and impact on virologic suppression.

Gender: All

Ages: 18 Years - 29 Years

Updated: 2026-05-12

1 state

HIV/AIDS
Young Adult
Mobile Health
+2
ACTIVE NOT RECRUITING

NCT05410561

Harnessing Telemedicine to Improve Alcohol Use Disorder Outcomes in Primary Care Patients

The purpose of this trial is to test new programs to see if they might help people manage their health and health behaviors related to alcohol use and well-being. The program sessions focus on getting to know what's important to the participants, reviewing or setting goals, and using different skills and behaviors to better manage health. The trial will help the study team learn about ways to deliver health information in a way that is useful and interesting. This research will take place remotely (e.g., Zoom, Facetime, Phone) and participants will be randomized to the Telehealth (TeleTx) group intervention or the Enhanced Usual Care (EUC) control group. Both groups will be asked to have follow-up visits up to 12 months from the baseline visit.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-05-08

1 state

Substance Use Disorders
Substance Use
Substance Dependence
ACTIVE NOT RECRUITING

NCT05933226

Project Khanya: Peer-Delivered Intervention to Improve HIV Medication Adherence and Substance Use in South Africa

The purpose of this study is to evaluate a stepped care behavioral intervention for HIV medication adherence and substance use ("Khanya") integrated into an HIV primary care setting in South Africa. The intervention is specifically designed to be implemented by non-specialist counselors with lived substance use experience (i.e., peers), using a task sharing, stepped care model in local primary care clinics. The Khanya stepped care package will be compared to usual care, enhanced with referral to a local outpatient substance use treatment program (Enhanced Standard of Care - ESOC) over 12 months.

Gender: All

Ages: 18 Years - Any

Updated: 2026-05-07

1 state

Human Immunodeficiency Virus
Alcohol-Related Disorders
Drug Use
+1
ACTIVE NOT RECRUITING

NCT06116266

Collaborative Care for Polysubstance Use in Primary Care Settings (Co-Care)

The purpose of this trial is to test the efficacy of a collaborative care intervention to address opioid- and/or stimulant-involved polysubstance use in adult primary care patients with moderate to severe substance use disorders (SUD). The primary aims are to reduce days of opioid use (illicit or nonmedical opioid use), days of illicit stimulant use (cocaine, methamphetamine), and days of heavy alcohol use.

Gender: All

Ages: 18 Years - Any

Updated: 2026-05-07

7 states

Substance Use
COMPLETED

NCT04850274

Using Re-inforcement Learning to Automatically Adapt a Remote Therapy Intervention (RTI) for Reducing Adolescent Violence Involvement

This study will use a randomized control trial (RCT) design to administer two versions of a multisession remote behavioral intervention for youth seeking Emergency Department care for a violent injury with the goal to reduce their violence involvement and associated negative behaviors and consequences. The study examines two versions of the remote therapy intervention - a standard RTI (S-RTI) and an Artificial Intelligence RTI (AI-RTI). The application of a just-in-time adaptive strategy to address youth violence is an important and novel direction for this research, particularly given the need to understand best practices for delivering behavioral interventions among lower-income populations.

Gender: All

Ages: 14 Years - 24 Years

Updated: 2026-05-06

3 states

Violence
Substance Use
Criminal Behavior
+1
NOT YET RECRUITING

NCT07214519

Permanent Supportive Housing Overdose Prevention+ Study

This community-partnered study examines a technical assistance intervention designed to help permanent supportive housing agencies implement evidence-based practices to prevent tenant overdose and improve tenant health.

Gender: All

Ages: 18 Years - Any

Updated: 2026-05-06

1 state

Overdose
Substance Use
RECRUITING

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: 2026-05-05

1 state

Cannabis Use
Cannabis Dependence
Cannabis Use Disorder
+23
ACTIVE NOT RECRUITING

NCT04768920

Examining Feasibility and Acceptability of Telemedicine for Substance Use Disorder (SUD)

The objective of this pilot intervention study is to iteratively refine motivational interviewing and psychosocial intervention programs delivered via telehealth (Teletx) to help improve substance use and other related outcomes in SUD patients who are not receiving SUD care. We will examine feasibility and acceptability of these pilot psychosocial programs in a total of n=50 participants. The goal is to refine the programs to improve acceptability and feasibility and collect preliminary data for a future fully powered randomized controlled trial (RCT) in the future. In addition to study sessions, participants that are enrolled in the study will complete surveys prior to, during, and after treatment.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-05-05

1 state

Substance Use Disorders
Substance Use
Substance Dependence
COMPLETED

NCT06287203

Novel Prevention Intervention Program to Reduce Risky Patterns of Substance Use Among Emerging Adults

The purpose of this research study is to test whether completion of a new personalized feedback program is associated with reductions in risky substance use among emerging adults (18-25 years of age).

Gender: All

Ages: 18 Years - 25 Years

Updated: 2026-05-05

1 state

Substance Use
NOT YET RECRUITING

NCT07563517

Linking Individuals Needing Care for Substance Use Disorders to Peer Coaches & Across INcarceration Settings

The goal of this study is to learn whether a virtual peer recovery coach (PRC) intervention can improve engagement in addiction treatment among incarcerated adults with substance use disorders. The main questions it aims to answer are: * Does the PRC intervention increase engagement with at least one recovery resource at 30 and 90 days? * Does it improve secondary outcomes such as substance use, recovery capital, overdose events, and recidivism? Researchers will compare Treatment-as-Usual with the PRC telehealth intervention to see if PRC support improves engagement in addiction care. Participants will: * Complete baseline and follow-up assessments * Receive either Treatment-as-Usual or a virtual PRC session focused on motivational interviewing and linkage to recovery resources

Gender: All

Ages: 18 Years - Any

Updated: 2026-05-04

1 state

Substance Use
RECRUITING

NCT06216600

Women Focused Encounters for Resilience Independence Strength and Eudaimonia

The goal of this combination Type 1 hybrid and observational study is to evaluate the impact of a peer delivered intervention of acceptance and commitment therapy (ACT) + exercise + social support to address the substance (ab)use, violence, and AIDS/HIV (SAVA) to improve medication adherence for women living with HIV (WLWH). This intervention will be implemented by community based organizations that focus on WLWH across four counties. The main question it aims to answer are: * Will peer provision of ACT, exercise, and social support improve medication adherence for WLWH? * Will community based organizations be able to sustain the intervention after research is completed, and what changes will need to be made to sustain the intervention.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-05-01

1 state

HIV Infections
Substance Use
Trauma
+1
RECRUITING

NCT06899308

Health Surveillance at Constructor University Bremen (CUB) and Among HAW-Hamburg Employees

The aim of Health Surveillance is to analyze and describe the state of health of students at Constructor University, key influencing factors and individual resources by using mixed-method design.

Gender: All

Ages: 18 Years - Any

Updated: 2026-05-01

Social Isolation or Loneliness
Anxiety
Anxiety Depression (Mild or Not Persistent)
+12
ACTIVE NOT RECRUITING

NCT06359990

BrotherlyACT: A Tech-Enhanced Violence and Substance Use Intervention for Black Boys and Young Men

This study will adapt and test a culturally tailored, multi-component, and trauma-focused digital intervention to reduce the risk and effects of youth violence and substance use and bridge service access gaps for young Black males (YBM) in pediatric emergency and community-based low-resource settings.

Gender: MALE

Ages: 15 Years - 24 Years

Updated: 2026-04-29

1 state

Violence in Adolescence
Substance Use
Avoidance of Healthcare
ACTIVE NOT RECRUITING

NCT03707366

Fostering Healthy Futures for Teens: An RCT

This study will implement and evaluate a mentoring program designed to promote positive youth development and reduce adverse outcomes among maltreated adolescents with open child welfare cases. Teenagers who have been maltreated are at heightened risk for involvement in delinquency, substance use, and educational failure as a result of disrupted attachments with caregivers and exposure to violence within their homes and communities. Although youth mentoring is a widely used prevention approach nationally, it has not been rigorously studied for its effects in preventing these adverse outcomes among maltreated youth involved in the child welfare system. This randomized controlled trial will permit us to implement and evaluate the Fostering Healthy Futures for Teens (FHF-T) program, which will use mentoring and skills training within an innovative positive youth development (PYD) framework to promote adaptive functioning and prevent adverse outcomes. Graduate student mentors will deliver 9 months of prevention programming in teenagers' homes and communities. Mentors will focus on helping youth set and reach goals that will improve their functioning in five targeted "REACH" domains: Relationships, Education, Activities, Career, and Health. In reaching those goals, mentors will help youth build social-emotional skills associated with preventing adverse outcomes (e.g., emotion regulation, communication, problem solving). The randomized controlled trial will enroll 234 racially and ethnically diverse 8th and 9th grade youth (117 intervention, 117 control), who will provide data at baseline prior to randomization, immediately post-program and 15 months post program follow-up. The aims of the study include testing the efficacy of FHF-T for high-risk 8th and 9th graders in preventing adverse outcomes and examining whether better functioning in positive youth development domains mediates intervention effects. It is hypothesized that youth randomly assigned to the FHF-T prevention condition, relative to youth assigned to the control condition, will evidence better functioning on indices of positive youth development in the REACH domains leading to better long-term outcomes, including adaptive functioning, high school graduation, career attainment/employment, healthy relationships, and quality of life.

Gender: All

Ages: 13 Years - 16 Years

Updated: 2026-04-29

1 state

Child Abuse
Child Neglect
Risk Behavior
+8
RECRUITING

NCT06324318

Parenting in 2 Worlds Multisite Trial

This research study will test the effectiveness of a culturally grounded parenting intervention called Parenting in 2 Worlds (P2W). This intervention is designed for American Indian / Alaska Native (AI) parents/guardians of adolescents who reside in urban areas. This will be a multi-regional effectiveness trial across four regions: Northeast (Buffalo/Niagara), Midwest (St. Paul/Minneapolis), Mountain (Denver), and Southwest (Phoenix). There are four specific aims. First, this study will test the effectiveness of Parenting in Two Worlds (P2W) as compared to an informational family health intervention, Healthy Families in 2 Worlds (HF2W), in improving parenting and family functioning. Second, this study will test if the relative effectiveness of P2W, compared to HF2W, varies by parent's/guardian's level of socioeconomic vulnerability, experiences of historical loss, or AI cultural identity. Third, this study will examine if P2W can reduce adolescent (ages 12 - 17) risky health behaviors including substance use, depressive symptoms, suicidality, and risky sexual behaviors. Fourth, this study will examine whether positive changes in parenting and family functioning that result from P2W lead to positive changes in adolescent's health behaviors.

Gender: All

Ages: 12 Years - Any

Updated: 2026-04-29

4 states

Parenting
Mental Health Wellness 1
Substance Use
+1
COMPLETED

NCT05378399

SmartSteps: A Context-Aware, PrEP Adherence Intervention for Individuals With Substance Use Disorder

This is a single-arm, observational study of HIV-negative MSM with substance use disorder. Those who meet pre-screening criteria will attend a Screening Visit (Visit 1), where the informed consent process will be conducted and study eligibility will be confirmed. Eligible participants will attend three additional visits over the course of the study - the Enrollment Visit (Visit 2), Month 1 Visit (Visit 3), and Month 2 Visit (Visit 4). Participants will take one PrEP digital pill per day, for 60 days total, while using the digital pill system (DPS) and Beiwe, a digital phenotyping app. On nonadherent days, participants will receive brief surveys prompting them to report the reasons for their missed dose, as well as their engagement in substance use and sexual activity. Timeline followback will be conducted at the Month 1 and Month 2 Visits to understand the context of any nonadherence. Qualitative user experience exit interviews and dried blood spots (DBS) will be conducted at the Month 2 Visit.

Gender: MALE

Ages: 18 Years - Any

Updated: 2026-04-28

1 state

HIV Infections
Substance Use
Adherence, Medication
+1
RECRUITING

NCT07094061

Neurobehavioral Signatures of Sign- and Goal-Tracking in Emerging Adults: Translation of a Preclinical Model

This study seeks to understand individual differences in personality, brain function, and behavior. Study hypothesis: \- A stronger sign-tracking bias will be associated with a bottom-up processing style characterized by less adaptive attentional- and impulse-control as well as hyperactive reward processing, whereas a stronger goal-tracking bias will be associated with a top-down processing style characterized by strong attentional- and impulse-control as well as normative reward processing.

Gender: All

Ages: 18 Years - 22 Years

Updated: 2026-04-27

1 state

Substance Use
Healthy