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Showing 1–24 of 340 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 2 Interventional

Ketamine-Assisted Recovery for Methamphetamine Use Disorder & HIV

NCT06538285
View directory record Official record
Conditions
Methamphetamine Use Disorder
Interventions
Ketamine, Psychotherapy
Drug · Behavioral
Lead sponsor
Nicky Mehtani, MD, MPH
Other
Eligibility
18 Years to 69 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
San Francicso, California
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluating a Structural and Behavioral HIV Risk Reduction Program for Black Men

NCT01694121
View directory record Official record
Conditions
HIV
Interventions
MEN Count, Comparison
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 40 Years · Male only
Enrollment
455 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Dec 27, 2018 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Total Health Study

NCT01415206
View directory record Official record
Conditions
Risk Reduction Behavior
Interventions
Extended Staging Health Risk Intervention (S-HRI), Usual Care
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 14, 2019 · Synced Sep 4, 2026, 6:24 PM EDT
Recruiting Phase 3 Interventional

Ketamine Treatment of Youth Suicide Attempters

NCT04763343
View directory record Official record
Conditions
Suicide, Attempted
Interventions
Ketamine Hydrochloride, Saline, CAMS Therapy
Drug · Behavioral
Lead sponsor
Tatiana Falcone, MD
Other
Eligibility
14 Years to 30 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Sep 4, 2026, 6:24 PM EDT
Not listed Phase 2 Interventional

The Aim of This Study is to Determine the Effectiveness of a Motivational Enhancement Intervention in Reducing Risk Behaviors (Drug and Alcohol Use, Sexual Risk Behavior, Poor Adherence to Medications) Among HIV+ Youth. - 1

NCT00227825
View directory record Official record
Conditions
Adherence, HIV Risk Behaviors, Alcohol & Drug Use, Health Behaviors, Sexual Risk Behaviors
Interventions
Motivational interviewing
Behavioral
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
16 Years to 24 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 10, 2017 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Not applicable Interventional Results available

The Fasting II Study

NCT01792986
View directory record Official record
Conditions
Diabetes, Metabolic Diseases
Interventions
water-only 24-hour fasting once per week for 6 weeks
Behavioral
Lead sponsor
Intermountain Health Care, Inc.
Other
Eligibility
30 Years to 69 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
2
States / cities
Murray, Utah • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 19, 2017 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Not applicable Interventional

Healthy Directions After Lung Surgery Pilot

NCT02135211
View directory record Official record
Conditions
Carcinoma, Non Small Cell Lung
Interventions
Lifestyle counseling
Behavioral
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
21 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 1, 2018 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Not applicable Interventional

Behavioral Intervention to Enhance HIV Test/Treat

NCT01752777
View directory record Official record
Conditions
HIV/AIDS
Interventions
Infectiousness Risk Reduction, General Health Improvement
Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years to 100 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 8, 2018 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Not applicable Interventional

Reducing Skin Cancer Risk in Childhood Cancer Survivors

NCT02046811
View directory record Official record
Conditions
Skin Neoplasms
Interventions
Patient activation and education (PAE), PAE plus physician activation (PAE + MD), PAE physician activation, plus teledermoscopy (PAE +MD +TD)
Behavioral
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
30 Years to 65 Years
Enrollment
726 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 19, 2018 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Phase 2 Interventional

Reducing Sex-Related HIV Risk Behaviors in Patients Receiving Treatment for Opioid Dependence

NCT00548275
View directory record Official record
Conditions
Opiate Dependence, HIV Infections
Interventions
Enhanced Sexual Risk Management, Standard Sexual Risk Management
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
2
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 2, 2020 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Not applicable Interventional Results available

Promoting Risk Reduction Among Young Adults With Asthma During Wildfire Smoke Events (TRAK)

NCT04724733
View directory record Official record
Conditions
Asthma
Interventions
Smoke Sense, Smoke Sense Plus
Behavioral
Lead sponsor
Washington State University
Other
Eligibility
18 Years to 26 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Spokane, Washington
Source: ClinicalTrials.gov public record
Updated Apr 27, 2023 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Not applicable Interventional

Increasing Help-Seeking in Military Service Members

NCT04043936
View directory record Official record
Conditions
Military Service Members at Elevated Suicide Risk
Interventions
Cognitive Bias Modification Intervention for Help-Seeking Stigma, Placebo Cognitive Bias Modification (CBM-Placebo), Self-Directed Psychoeducation
Behavioral
Lead sponsor
Florida State University
Other
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
2
States / cities
Tallahassee, Florida • Portsmouth, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 12, 2023 · Synced Sep 4, 2026, 6:24 PM EDT
Withdrawn No phase listed Observational

Assessment of Mortality Rates in COVID-19 Infected Populations Treated With Repurposed Medications

NCT04432350
View directory record Official record
Conditions
COVID, Drug Effect, Drug Interaction, Risk Reduction
Interventions
Not listed
Lead sponsor
Tabula Rasa HealthCare
Industry
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Sep 1, 2022 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Not applicable Interventional

Providing PrEP, Hepatitis C Treatment, and MOUD Through Telemedicine at Greensboro SSP

NCT05108935
View directory record Official record
Conditions
Opioid Use, Opioid Use Disorder, Risk Reduction, Hiv, Hepatitis C
Interventions
Suboxone, Truvada, Mavyret
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
2
States / cities
Durham, North Carolina • Greensboro, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 26, 2023 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Not applicable Interventional Results available

Intensity-Modulated Radiation Therapy With or Without Decreased Radiation Dose to Erectile Tissue in Treating Patients With Stage II Prostate Cancer

NCT00084552
View directory record Official record
Conditions
Prostate Cancer, Sexual Dysfunction, Sexuality and Reproductive Issues
Interventions
radiation therapy
Radiation
Lead sponsor
Fox Chase Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2016
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 24, 2021 · Synced Sep 4, 2026, 6:24 PM EDT
Terminated Not applicable Interventional Results available

Health Behavior Change for Hospitalized Veterans

NCT01602172
View directory record Official record
Conditions
Alcohol Consumption
Interventions
Brief Alcohol Intervention, Lifestyle brochures
Behavioral · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
21 Years and older
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 16, 2019 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

DOT Diary Mobile App for Pre-Exposure Prophylaxis Adherence in Young Men

NCT03771638
View directory record Official record
Conditions
Adherence, Medication, Risk Behavior, Pre-Exposure Prophylaxis, HIV Prevention
Interventions
Emtricitabine / Tenofovir Disoproxil Oral Tablet, DOT Diary mobile app
Drug · Other
Lead sponsor
Public Health Foundation Enterprises, Inc.
Other
Eligibility
18 Years to 35 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
2
States / cities
San Francisco, California • Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 2, 2025 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Not applicable Interventional Results available

Broadening the Reach, Impact, and Delivery of Genetic Services

NCT03985852
View directory record Official record
Conditions
Cancer, Risk Reduction Behavior
Interventions
Patient Directed Standard of Care
Other
Lead sponsor
University of Utah
Other
Eligibility
25 Years to 60 Years
Enrollment
3,073 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
2
States / cities
New York, New York • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 21, 2025 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Rapid Self-Testing to Prevent Fentanyl Overdose Among Young People Who Use Drugs

NCT03373825
View directory record Official record
Conditions
Accidental Overdose of Opiate
Interventions
Take home rapid drug test
Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years to 35 Years
Enrollment
93 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jan 23, 2018 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Not applicable Interventional

A Novel Approach to Reducing Adiposity Among Young Men

NCT04267263
View directory record Official record
Conditions
Weight Loss, Men, Lifestyle Risk Reduction, Cardiovascular Diseases, Obesity
Interventions
Self-guided lifestyle intervention
Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 25, 2021 · Synced Sep 4, 2026, 6:24 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Increasing Food Literacy in Preschoolers to Reduce Obesity Risk

NCT05977348
View directory record Official record
Conditions
Food Preferences, Food Selection, Eating, Healthy, Obesity, Childhood
Interventions
Healthy Eating Curriculum, Improving the Classroom Food and Mealtime Environment, Parent Education, ECE Food Acceptance Training
Behavioral
Lead sponsor
Penn State University
Other
Eligibility
3 Years to 6 Years
Enrollment
770 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 16, 2025 · Synced Sep 4, 2026, 6:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact Evaluation of the Reducing the Risk Program

NCT02054026
View directory record Official record
Conditions
Sexual Behavior
Interventions
Reducing the Risk
Behavioral
Lead sponsor
Mathematica Policy Research, Inc.
Other
Eligibility
Not listed
Enrollment
2,220 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
13
States / cities
Bardstown, Kentucky • Bowling Green, Kentucky • Cecilia, Kentucky + 7 more
Source: ClinicalTrials.gov public record
Updated Apr 16, 2017 · Synced Sep 4, 2026, 6:24 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Blood Donor CVD 5000

NCT03971669
View directory record Official record
Conditions
Risk Reduction
Interventions
Vivotif Typhoid Oral Vaccine
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2030
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 4, 2026, 6:24 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Standardizing Emergency Work-ups Around Risk Data

NCT03286179
View directory record Official record
Conditions
Acute Coronary Syndrome, Chest Pain, Risk Reduction
Interventions
modified HEART score and/or Emergency Department Assessment of Chest pain Risk Score (EDACS)
Other
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
13,419 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
12
States / cities
Antioch, California • Fremont, California • Oakland, California + 8 more
Source: ClinicalTrials.gov public record
Updated Aug 11, 2020 · Synced Sep 4, 2026, 6:24 PM EDT