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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Risk-Taking Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Experimental Test of Facebook Social Drinking Norms on Adolescent Alcohol Use

NCT03159286
View directory record Official record
Conditions
Feedback, Psychological, Underage Alcohol Use, Risk-Taking
Interventions
Abstainer, Abstainer + User, Control
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
15 Years to 20 Years
Enrollment
306 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 20, 2019 · Synced Jun 10, 2026, 9:19 PM EDT
Completed No phase listed Observational

Risk Perception in Drug-Dependent Adults With and Without Schizophrenia

NCT01031563
View directory record Official record
Conditions
Cocaine Dependence, Cannabis Dependence, Schizophrenia
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 64 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An HIV Vaccine Preparedness Study

NCT00000915
View directory record Official record
Conditions
HIV Infections
Interventions
Vaccine preparedness
Behavioral
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
4,892 participants
Healthy volunteers
Accepts healthy volunteers
U.S. locations
8
States / cities
Los Angeles, California • Chicago, Illinois • Baltimore, Maryland + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jun 10, 2026, 9:19 PM EDT
Withdrawn Not applicable Interventional

Don't Go There: A Geospatial mHealth App for Gambling Disorder

NCT04158037
View directory record Official record
Conditions
Gambling Disorder
Interventions
mHealth App
Behavioral
Lead sponsor
St. Louis University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional

Evaluation of a Brief Surf the Urge Intervention

NCT02771886
View directory record Official record
Conditions
Substance Use, Deliberate Self-harm, Trichotillomania, Aggression, Stealing, Eating Pathology, Gambling
Interventions
Surf the Urge
Behavioral
Lead sponsor
Kimberly N Schubert
Other
Eligibility
14 Years to 24 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Apr 3, 2017 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Effectiveness of Anti-HIV Vaccines in HIV-Negative Adults

NCT00000904
View directory record Official record
Conditions
HIV Infections
Interventions
ALVAC(2)120(B,MN)GNP (vCP1452), gp160 MN/LAI-2, ALVAC(1)120(B,MN)GNP (vCP1433), ALVAC-HIV MN120TMG (vCP205), ALVAC-RG Rabies Glycoprotein (vCP65)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 60 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 1999
U.S. locations
6
States / cities
Birmingham, Alabama • Baltimore, Maryland • St Louis, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 2 Interventional Results available

Tolcapone Treatment of Pathological Gambling

NCT00927563
View directory record Official record
Conditions
Pathological Gambling
Interventions
Tolcapone
Drug
Lead sponsor
University of Chicago
Other
Eligibility
21 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 22, 2023 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Evaluation of the Healthy Love Workshop, an HIV Prevention Intervention for African American Women

NCT00362375
View directory record Official record
Conditions
HIV Infections, Sexually Transmitted Infections
Interventions
Healthy Love Workshop, HIV/AIDS 101 Workshop
Behavioral
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
18 Years and older · Female only
Enrollment
313 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 13, 2010 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Parent-Based Intervention to Reduce Sexual Risk Behavior in Adolescents

NCT00461487
View directory record Official record
Conditions
Behavior and Behavior Mechanisms
Interventions
Active control on hygiene and nutrition, Families Talking Together
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
11 Years to 14 Years
Enrollment
530 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 10, 2013 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Translation Study of a Safe Teen Driving Intervention

NCT04317547
View directory record Official record
Conditions
Drive, Adolescent Behavior, Risk Behavior
Interventions
Steering Teens Safe (STS), Driving Feedback Technology.
Behavioral
Lead sponsor
Ginger Yang
Other
Eligibility
16 Years to 17 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 21, 2024 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 3 Interventional

Safety and Efficacy Trial of Olanzapine in Outpatients With Pathological Gambling

NCT00438776
View directory record Official record
Conditions
Pathological Gambling
Interventions
olanzapine, sugar pill
Drug
Lead sponsor
Lindner Center of HOPE
Other
Eligibility
18 Years to 75 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 12, 2011 · Synced Jun 10, 2026, 9:19 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

The College, Alcohol and Peers Study (CAPS)

NCT03890484
View directory record Official record
Conditions
Alcohol Drinking
Interventions
Peer Type - New Peer, Peer Type - Close Friends
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
21 Years to 24 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 16, 2024 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional

A Pilot SMART Design for Pathological Gamblers

NCT00685724
View directory record Official record
Conditions
Pathological Gambling
Interventions
Motivational Enhancement Therapy (MET), Cognitive-Behavioral Therapy (CBT)
Behavioral
Lead sponsor
UConn Health
Other
Eligibility
18 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 8, 2019 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 2 Interventional Results available

Investigation of Naltrexone for Pathological Gambling

NCT01057862
View directory record Official record
Conditions
Pathological Gambling
Interventions
Naltrexone, Placebo
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
3
States / cities
Middletown, Connecticut • New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 12, 2017 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

DOT Diary Optimization Pilot: A Pilot Study to Optimize the DOT Diary App to Measure PrEP Adherence

NCT03387462
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
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
2
States / cities
San Francisco, California • Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 26, 2021 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Testing a Personally Controlled Health Record to Ameliorate Influenza at MIT

NCT00531700
View directory record Official record
Conditions
Influenza
Interventions
Health messaging, Health messages
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 30, 2009 · Synced Jun 10, 2026, 9:19 PM EDT
Not yet recruiting Phase 3 Interventional

Phase 3 Trial of VMX-C001 vs Usual Pharmacological Care in Patients Taking a FXa Direct Oral Anticoagulant Who Require Urgent Surgery With or Without Heparin.

NCT07288489
View directory record Official record
Conditions
Blood Loss, Surgical, Coagulation Disorder
Interventions
VMX-C001, Usual Pharmacological Care
Drug
Lead sponsor
VarmX B.V.
Industry
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
16
States / cities
Chandler, Arizona • Phoenix, Arizona • Stanford, California + 12 more
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 2 Interventional Results available

Memantine Treatment Study of Pathological Gambling

NCT00585169
View directory record Official record
Conditions
Pathological Gambling
Interventions
Memantine Hydrochloride
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 75 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
2
States / cities
New Haven, Connecticut • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 7, 2013 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 2 Interventional Results available

Milk Thistle in Pathological Gambling

NCT02337634
View directory record Official record
Conditions
Pathological Gambling, Gambling Disorder
Interventions
Placebo, Milk Thistle
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 75 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 3, 2024 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

A Study of Peer Education to Prevent HIV Transmission Among Injection Drug Users and Their HIV Risk Contacts

NCT00038688
View directory record Official record
Conditions
HIV Infections
Interventions
Peer HIV Education Program
Behavioral
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
2,610 participants
Healthy volunteers
Accepts healthy volunteers
U.S. locations
2
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 29, 2009 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 4 Interventional Results available

Evaluation of Risk Minimization, Assessment and Outcomes in Patients With Chronic Pain Taking Avinza

NCT00640042
View directory record Official record
Conditions
Pain
Interventions
morphine sulfate extended release capsules
Drug
Lead sponsor
Pfizer
Industry
Eligibility
21 Years and older
Enrollment
1,570 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
378
States / cities
Adamsville, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 314 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2012 · Synced Jun 10, 2026, 9:19 PM EDT
Completed No phase listed Observational

Association Between Genetic Variant Scores and Warfarin Effect

NCT03894878
View directory record Official record
Conditions
Atrial Fibrillation, Deep Vein Thrombosis, Intracardiac Thrombus, Pulmonary Embolism, Venous Thromboembolic Disease
Interventions
Not listed
Lead sponsor
Cipherome, Inc.
Industry
Eligibility
18 Years to 99 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Santa Clara, California
Source: ClinicalTrials.gov public record
Updated Feb 15, 2023 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 2 Interventional Results available

N-Acetyl Cysteine Plus Behavioral Therapy for Nicotine Dependent Pathological Gamblers

NCT00967005
View directory record Official record
Conditions
Gambling, Tobacco Use Disorder
Interventions
N Acetyl Cysteine, Sugar Pill
Drug · Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 75 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
2
States / cities
New Haven, Connecticut • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 20, 2023 · Synced Jun 10, 2026, 9:19 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Detecting a Reward Signal in the Motor Cortex

NCT00422071
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 60 Years
Enrollment
168 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 16, 2019 · Synced Jun 10, 2026, 9:19 PM EDT