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Showing 1–24 of 199 matching trials from the live ClinicalTrials.gov search.
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Completed Not applicable Interventional Results available

The SOLVE-IT National Randomized Trial

NCT00653991
View directory record Official record
Conditions
HIV Infections
Interventions
SOLVE-IT
Behavioral
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 24 Years · Male only
Enrollment
2,020 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 15, 2019 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

PrEP Point-of-Care Brief-Intervention for Adherence Among Young Men Who Have Sex With Men

NCT05353283
View directory record Official record
Conditions
Risk Reduction
Interventions
Motivational Interviewing Counselling, Point-of-care Urine Tenofovir Measurement
Behavioral · Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 30 Years · Male only
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional

HIV Prevention and Trauma Treatment in Men Who Have Sex With Men and Who Have a History of Sexual Abuse

NCT00797654
View directory record Official record
Conditions
Risk Reduction
Interventions
Information-motivation-behavior skills and cognitive processing therapy, Pre and Post HIV-Test Counseling
Behavioral
Lead sponsor
Fenway Community Health
Other
Eligibility
18 Years and older · Male only
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 8, 2016 · Synced Sep 1, 2026, 7:17 PM EDT
Completed No phase listed Observational

A Study of HIV in Newly Infected Individuals

NCT00000930
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
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2008
U.S. locations
12
States / cities
Los Angeles, California • San Francisco, California • Denver, Colorado + 8 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2016 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional Results available

Tough Talks: A Disclosure Intervention for HIV+ Young Men Who Have Sex With Men (YMSM)

NCT03414372
View directory record Official record
Conditions
Hiv, HIV/AIDS, Disclosure
Interventions
Tough Talks Online, Tough Talks Clinic, Standard of Care
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
16 Years to 29 Years · Male only
Enrollment
156 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 5, 2023 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

MI-based PrEP Intervention

NCT03313765
View directory record Official record
Conditions
PrEP Uptake
Interventions
Motivational interviewing (MI), Standard-of-care
Behavioral · Other
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years and older · Male only
Enrollment
86 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Aug 24, 2021 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Integrated BA and HIV RR Counseling for MSM With Stimulant Abuse

NCT03175159
View directory record Official record
Conditions
Stimulant Abuse, HIV Prevention, Substance Abuse
Interventions
IMPACT, Standard of Care
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older · Male only
Enrollment
205 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
2
States / cities
Miami, Florida • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 24, 2024 · Synced Sep 1, 2026, 7:17 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effectiveness of Relationship Education for Reducing HIV Incidence Among Men Who Have Sex With Men

NCT05678556
View directory record Official record
Conditions
Hiv, Chlamydia, Gonorrhea
Interventions
all2GETHER
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
16 Years to 34 Years
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Sep 1, 2026, 7:17 PM EDT
Completed No phase listed Observational

Evaluation of the Quality of Self-collected Blood Spot Specimens for Laboratory HIV Testing - An InvolveMENt Sub Study

NCT02043041
View directory record Official record
Conditions
HIV
Interventions
Number of DBS Spots
Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older · Male only
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 24, 2015 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional

Project Matter: Intervention to Improve HIV Self-care Among Men Who Have Sex With Men (MSM) With Substance Use Disorders

NCT03899220
View directory record Official record
Conditions
Substance Use Disorders, HIV/AIDS, Homosexuality, Male
Interventions
Project Matter
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 7, 2025 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Partner Services Pre-exposure Prophylaxis (PS-PrEP)

NCT02749955
View directory record Official record
Conditions
HIV Transmission, Transtheoretical Model of Change
Interventions
PS-PrEP Intervention Group, PrEPLine Control Group
Behavioral
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
164 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 8, 2025 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional

A Multi-Center Randomized Double-Blind Placebo-Controlled Study To Investigate the Effect of Isoprinosine in Patients With AIDS Related Complex (ARC)

NCT00002060
View directory record Official record
Conditions
HIV Infections
Interventions
Inosine pranobex
Drug
Lead sponsor
Newport Pharmaceuticals International
Industry
Eligibility
18 Years to 75 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Laguna Hills, California
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparing Two Types of Swabs in Collecting Cell Samples for Anal Pap Tests and Human Papillomavirus Tests in Men Who Have Sex With Men

NCT00955591
View directory record Official record
Conditions
Anal Cancer, Nonneoplastic Condition, Precancerous Condition
Interventions
Papanicolaou test
Other
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 2, 2020 · Synced Sep 1, 2026, 7:17 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Evaluating the Effectiveness of a Mobile HIV Prevention App to Increase HIV and Sexually Transmitted Infections (STI) Testing and PrEP Initiation Among Rural Men Who Have Sex With Men

NCT06205368
View directory record Official record
Conditions
HIV Infections, STI, HIV Pre-exposure Prophylaxis
Interventions
Combine mobile app, Motivational interview, HIV/STI testing
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
473 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 22, 2025 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Phase 4 Interventional Results available

Trial of Azithromycin vs. Doxycycline for the Treatment of Rectal Chlamydia in MSM

NCT03608774
View directory record Official record
Conditions
Anal Chlamydia Infection
Interventions
Azithromycin, Doxycycline, Placebo
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years · Male only
Enrollment
177 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
2
States / cities
Boston, Massachusetts • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 6, 2021 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Inflammation in Methamphetamine and STIs (IMSTI)

NCT05162391
View directory record Official record
Conditions
Methamphetamine-dependence, Rectal Gonorrhea, Rectal Chlamydia
Interventions
Contingency Management
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older · Male only
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Increasing MSM in the Continuum of Care in Kazakhstan

NCT02786615
View directory record Official record
Conditions
HIV, Substance-Related Disorders
Interventions
Peer Unity
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older · Male only
Enrollment
987 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 26, 2022 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional

Intervention Targeting Medication Adherence and Methamphetamine Use in HIV Positive Men (ACE)

NCT01122186
View directory record Official record
Conditions
HIV Medication Adherence, Methamphetamine Use, Sexual Risk, Poly-substance Use, HIV Infections
Interventions
Motivational Interviewing + Cognitive Behavioral Skills Training, Education Attention Control
Behavioral
Lead sponsor
Hunter College of City University of New York
Other
Eligibility
18 Years and older · Male only
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 2, 2013 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional Results available

Restore: Improving Sexual Outcomes of Gay and Bisexual Prostate Cancer Survivors

NCT03343093
View directory record Official record
Conditions
Prostatic Neoplasm
Interventions
Restore Rehabilitation Program, Control
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older · Male only
Enrollment
403 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 1, 2024 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional

Pepped on Pre-exposure Prophylaxis (PrEP): A Counseling and Problem-Solving PrEP Adherence Intervention for Stimulant Using Men Who Have Sex With Men (MSM).

NCT03137342
View directory record Official record
Conditions
PrEP Uptake, Stimulant Abuse, Adherence, Medication
Interventions
Pepped on PrEP Package
Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years and older · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jul 10, 2018 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Being Responsible for Ourselves HIV Risk Reduction for Black MSM

NCT02561286
View directory record Official record
Conditions
Human Immunodeficiency Virus Infection (HIV), Sexually Transmitted Disease (STD)
Interventions
BRO HIV Risk Reduction Intervention, Health Promotion Intervention
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older · Male only
Enrollment
595 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 28, 2015 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Mobile-Based Application "MyChoices"

NCT03179319
View directory record Official record
Conditions
HIV, Sexually Transmitted Diseases, Pre-exposure Prophylaxis, Risk Reduction
Interventions
MyChoices
Behavioral
Lead sponsor
Fenway Community Health
Other
Eligibility
15 Years to 24 Years · Male only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
2
States / cities
Boston, Massachusetts • The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Dec 15, 2020 · Synced Sep 1, 2026, 7:17 PM EDT
Completed Phase 2 Interventional Results available

Contingency Management for Methamphetamine Abstinence and HIV Post-Exposure Prophylaxis in Men Who Have Sex With Men

NCT00856323
View directory record Official record
Conditions
Amphetamine-Related Disorders, HIV, HIV Infections
Interventions
Truvada, CM
Drug · Behavioral
Lead sponsor
Friends Research Institute, Inc.
Other
Eligibility
18 Years and older · Male only
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 19, 2016 · Synced Sep 1, 2026, 7:17 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Anal Cytology Collection Procedures in Predicting High-Grade Anal Dysplasia in Men Who Have Sex With Men

NCT02816879
View directory record Official record
Conditions
Anal Carcinoma, HIV Infection, Human Papillomavirus Infection
Interventions
Cytology Specimen Collection Procedure, Laboratory Biomarker Analysis
Procedure · Other
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
415 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2028
U.S. locations
3
States / cities
Los Angeles, California • Palm Springs, California
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Sep 1, 2026, 7:17 PM EDT