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Showing 1–24 of 460 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Sexual Risk Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

Young Adult Education on Alcohol & Health

NCT05620849
View directory record Official record
Conditions
Sexual Behavior, Alcohol Drinking, Condomless Sex
Interventions
Online program
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 24 Years · Female only
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 8, 2024 · Synced Jul 21, 2026, 11:08 AM EDT
Completed Phase 2 Interventional Results available

Sex/Gender Differences in Risk and Resilience to PTSD; Implication of Oxytocin

NCT01963078
View directory record Official record
Conditions
PTSD
Interventions
Oxytocin, Placebo
Drug
Lead sponsor
Megan Moran-Santa Maria
Other
Eligibility
18 Years to 50 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Dec 10, 2018 · Synced Jul 21, 2026, 11:08 AM EDT
Completed Not applicable Interventional

STD Risk Reduction for Heterosexual Methamphetamine Users

NCT00344214
View directory record Official record
Conditions
Substance-Related Disorders, HIV Infections, Sexually Transmitted Diseases
Interventions
Tri-focal cognitive behavioral therapy - social skills training (CBTSS) counseling program, Standard care
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
432 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Sep 27, 2012 · Synced Jul 21, 2026, 11:08 AM EDT
Withdrawn Phase 2 Interventional

Preventing Frequent Sinus Infections in HIV-Infected Patients

NCT00000752
View directory record Official record
Conditions
HIV Infections, Sinusitis
Interventions
Pseudoephedrine hydrochloride, Guaifenesin, Cefuroxime axetil, Beclomethasone dipropionate
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1993
U.S. locations
10
States / cities
San Diego, California • San Francisco, California • The Bronx, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2021 · Synced Jul 21, 2026, 11:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Test of Behavioral Intervention for Women at High Risk for HIV Infection

NCT00006440
View directory record Official record
Conditions
HIV Infections
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older · Female only
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2008
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 30, 2016 · Synced Jul 21, 2026, 11:08 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

A Study Evaluating An Integrated Pharmacy Digital Diary and Delivery Strategy to Increase PrEP Use Among MSM and TGW

NCT05474313
View directory record Official record
Conditions
HIV Prevention, Pre-exposure Prophylaxis (PrEP), Risk Reduction, Adherence, Medication
Interventions
PrEP-3D package, Standard of Care
Behavioral
Lead sponsor
Public Health Foundation Enterprises, Inc.
Other
Eligibility
18 Years and older · Male only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 20, 2022 · Synced Jul 21, 2026, 11:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

PC4PrEP: Integrating PrEP Into Primary Care

NCT03617874
View directory record Official record
Conditions
Human Immunodeficiency Virus Transmission
Interventions
PC4PrEP- Intervention Clinics, Standard of Care Clinics
Other
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Sep 15, 2022 · Synced Jul 21, 2026, 11:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

HOPE (Harnessing Online Peer Education): Using Online Social Networks for HIV Prevention and Testing

NCT01701206
View directory record Official record
Conditions
HIV
Interventions
HIV knowledge Intervention
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 100 Years · Male only
Enrollment
558 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2015
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 2, 2017 · Synced Jul 21, 2026, 11:08 AM EDT
Completed No phase listed Observational

Psychosocial Needs of YMSM

NCT00710671
View directory record Official record
Conditions
HIV+ YMSM
Interventions
Not listed
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
16 Years to 24 Years · Male only
Enrollment
254 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
14
States / cities
Los Angeles, California • San Francisco, California • Washington D.C., District of Columbia + 10 more
Source: ClinicalTrials.gov public record
Updated Feb 27, 2017 · Synced Jul 21, 2026, 11:08 AM EDT
Completed Phase 2 Interventional Results available

Use of Rosuvastatin in HIV-Infected Subjects to Modulate Cardiovascular Risks

NCT01218802
View directory record Official record
Conditions
HIV Infections, Heart Disease
Interventions
Rosuvastatin 10 mg. daily for 96 weeks, Placebo
Drug
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years and older
Enrollment
147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 7, 2016 · Synced Jul 21, 2026, 11:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Gender-Responsive Drug Use Treatment for Juvenile Justice Girls

NCT02293057
View directory record Official record
Conditions
Drug Use
Interventions
VOICES Group, Girl Health Group
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
12 Years to 24 Years · Female only
Enrollment
132 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2020
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 22, 2020 · Synced Jul 21, 2026, 11:08 AM EDT
Completed Phase 4 Interventional Results available

Cardiovascular Disease in HIV and Hepatitis C: Risk Outcomes After Hepatitis C Eradication

NCT03823911
View directory record Official record
Conditions
Cardiovascular Diseases, Hepatitis C, Hiv
Interventions
Elbasvir / Grazoprevir Oral Tablet [Zepatier], Cardiac MRI
Drug · Procedure
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 80 Years
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 21, 2023 · Synced Jul 21, 2026, 11:08 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

This Study Evaluates the ALPCO Syphilis-T and Syphilis-NT CLIA Kits for Detecting Syphilis Antibodies in Serum and Plasma. Samples From At-risk, HIV-positive, Pregnant, and Healthy Individuals Will Assess Assay Performance Versus Established Comparator Tests.

NCT07089836
View directory record Official record
Conditions
Treponema Pallidum, Treponema Pallidum Infection, Syphilis Infection, Serum, Plasma, Blooddraw, Sexually Transmitted Infection (STI)
Interventions
ALPCO Syphilis-T, ALPCO Syphilis-NT CLIA Kits
Device
Lead sponsor
American Laboratory Products Company
Industry
Eligibility
13 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
6
States / cities
Lancaster, California • Los Angeles, California • North Miami, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Jul 21, 2026, 11:08 AM EDT
Completed No phase listed Observational

Engaging Care for HIV-infected Adolescent Females.

NCT00489034
View directory record Official record
Conditions
HIV Infection
Interventions
Quantitative Interview, Ethnographic Interview, Gender Interview
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
13 Years to 23 Years · Female only
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2010
U.S. locations
5
States / cities
Los Angeles, California • Miami, Florida • Chicago, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 5, 2017 · Synced Jul 21, 2026, 11:08 AM EDT
Not yet recruiting No phase listed Observational Accepts healthy volunteers

Assessing Performance of a Hepatitis C Emergency Department (HepC-EnD) Screening Tool: IT Integration Process for Electronic Health Record System

NCT07406490
View directory record Official record
Conditions
Hepatitis C Virus (HCV), Hepatitis C Virus (HCV) Infection, HIV (Human Immunodeficiency Virus)
Interventions
Physician-Initiated Screening (Conventional Screening), FOCUS (Universal Screening), HepC-EnD (Targeted Screening)
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 79 Years
Enrollment
6,466 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
3
States / cities
Gainesville, Florida • Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Jul 21, 2026, 11:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Reducing Health Problems Associated With Injection Drug Use

NCT01128920
View directory record Official record
Conditions
Intravenous Drug Abuse, HIV Infections
Interventions
Skin and Needle Hygiene Intervention, No intervention - assessment-only condition
Behavioral · Other
Lead sponsor
University of Northern Colorado
Other
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 3, 2012 · Synced Jul 21, 2026, 11:08 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Kentucky Outreach Service Kiosk (KyOSK): Reducing HIV, HCV, and Overdose Risk

NCT05657106
View directory record Official record
Conditions
Opioid-Related Disorders, Hepatitis C (HCV), Human Immunodeficiency Virus (HIV), Drug Overdose, Substance Abuse, Intravenous Drug Usage, Opiate Substitution Treatment, Sexually Transmitted Diseases
Interventions
Harm reduction kiosk
Behavioral
Lead sponsor
April M Young
Other
Eligibility
18 Years and older
Enrollment
752 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Jul 21, 2026, 11:08 AM EDT
Completed Not applicable Interventional Results available

Brief Interventions in the Emergency Department for Alcohol and HIV/Sexual Risk

NCT01351389
View directory record Official record
Conditions
Alcohol Consumption, Unsafe Sex
Interventions
Brief Motivational Intervention (BMI), Brief Advice
Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years to 65 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
3
States / cities
Pawtucket, Rhode Island • Providence, Rhode Island • Warwick, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jun 18, 2025 · Synced Jul 21, 2026, 11:08 AM EDT
Completed Phase 1 Interventional Results available

Evaluating the Safety and Pharmacokinetics of Maraviroc in HIV-1-Exposed Infants at Risk of Acquiring HIV-1 Infection

NCT02778204
View directory record Official record
Conditions
HIV Infections
Interventions
Maraviroc
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Up to 3 Days
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
5
States / cities
Los Angeles, California • Aurora, Colorado • Chicago, Illinois + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 3, 2022 · Synced Jul 21, 2026, 11:08 AM EDT
Completed Not applicable Interventional

Specialized Cognitive-Behavioral Counseling Intervention to Reduce HIV Transmission Risk Behavior in HIV-Infected Men

NCT00218712
View directory record Official record
Conditions
HIV Infections
Interventions
Cognitive behavioral intervention, Standard counseling
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older · Male only
Enrollment
488 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2011
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 1, 2012 · Synced Jul 21, 2026, 11:08 AM EDT
Not listed Phase 1 Interventional

Behavioral Activation and HIV Risk Reduction for Men Who Have Sex With Men With Crystal Meth Abuse

NCT01255280
View directory record Official record
Conditions
Crystal Methamphetamine Abuse, Crystal Methamphetamine Dependence
Interventions
Behavioral Activation Therapy and Risk Reduction Counseling (BAT-RR), Information, Motivation, Behavioral skills change approach to sexual risk reduction
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 31, 2012 · Synced Jul 21, 2026, 11:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Improving Engagement in HIV Care for High-risk Women

NCT03081559
View directory record Official record
Conditions
HIV/AIDS, Adherence, Medication
Interventions
Healthy Divas
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older · Male only
Enrollment
278 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
2
States / cities
Los Angeles, California • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 15, 2020 · Synced Jul 21, 2026, 11:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Technology-Based Prevention for Adolescents in Primary Care

NCT03489434
View directory record Official record
Conditions
Substance Use
Interventions
Intervention
Behavioral
Lead sponsor
Georgia State University
Other
Eligibility
14 Years to 18 Years
Enrollment
123 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 13, 2025 · Synced Jul 21, 2026, 11:08 AM EDT
Recruiting Not applicable Interventional

Youth Empowerment and Safety Intervention

NCT07214233
View directory record Official record
Conditions
Suicide, Self-Injurious Behavior
Interventions
Treatment as Usual, Peer Support Services (PSS)
Behavioral
Lead sponsor
Case Western Reserve University
Other
Eligibility
12 Years to 17 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Jul 21, 2026, 11:08 AM EDT