Search | Clinical Trials Finder

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Nov 9, 2026, 5:33 PM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Showing 889–912 of 1,280 matching trials from the live ClinicalTrials.gov search.

Filters: Condition: Infection Prophylaxis Clear all

Conditions: HIV/AIDS
Interventions: Skill-Building (SB) plus Motivational Interviewing, Skill-Building (SB); Behavioral
Lead sponsor: Boston Medical Center; Other
Eligibility: 19 Years and older
Enrollment: 53 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2007 – 2008
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Sexually Transmitted Diseases
Interventions: Doxycycline; Drug
Lead sponsor: Emory University; Other
Eligibility: 18 Years to 59 Years
Enrollment: 45 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2023 – 2024
U.S. locations: 1
States / cities: Atlanta, Georgia

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

Conditions: HIV Infection
Interventions: PCC, Emtricitabine/tenofovir (FTC/TDF (Truvada®)); Behavioral · Drug
Lead sponsor: University of North Carolina, Chapel Hill; Other
Eligibility: 15 Years to 17 Years · Male only
Enrollment: 78 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2013 – 2016
U.S. locations: 6
States / cities: Los Angeles, California • Aurora, Colorado • Chicago, Illinois + 3 more

Conditions: Lice; Head Lice
Interventions: Medical Device (X92001483); Device
Lead sponsor: Oystershell NV; Industry
Eligibility: 1 Year and older
Enrollment: 98 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2026
U.S. locations: 1
States / cities: Maitland, Florida

Conditions: Prevention of Zika Infection, Zika-Specific Immune Response
Interventions: VRC-ZKADNA090-00-VP; Biological
Lead sponsor: National Institute of Allergy and Infectious Diseases (NIAID); NIH
Eligibility: 18 Years to 50 Years
Enrollment: 45 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2016 – 2019
U.S. locations: 1
States / cities: Bethesda, Maryland

Conditions: Congenital Heart Disease, Upper Gastrointestinal Bleeding, Stress Ulcer, Infection
Interventions: Famotidine, Placebo; Drug
Lead sponsor: Boston Children's Hospital; Other
Eligibility: 1 Minute to 12 Months
Enrollment: 70 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2019 – 2022
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: HIV Infections
Interventions: Ad26.ENVA.01 HIV-1 vaccine; Biological
Lead sponsor: National Institute of Allergy and Infectious Diseases (NIAID); NIH
Eligibility: 18 Years to 50 Years
Enrollment: 60 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2008 – 2015
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Malaria
Interventions: Atovaquone Proguanil, Procedure - malaria challenge; Drug · Other
Lead sponsor: U.S. Army Medical Research and Development Command; Federal
Eligibility: 18 Years to 50 Years
Enrollment: 35 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2009 – 2010
U.S. locations: 1
States / cities: Silver Spring, Maryland

Conditions: Endometritis, Wound Infection
Interventions: Cefazolin; Drug
Lead sponsor: Medical University of South Carolina; Other
Eligibility: 18 Years and older · Female only
Enrollment: 350 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2003 – 2006
U.S. locations: 1
States / cities: Charleston, South Carolina

Conditions: Infection, Human Immunodeficiency Virus
Interventions: 744 Tablet, 744 LA Injection, Placebo Tablet, Placebo Injection; Drug
Lead sponsor: ViiV Healthcare; Industry
Eligibility: 18 Years to 65 Years · Male only
Enrollment: 127 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2014 – 2016
U.S. locations: 10
States / cities: San Francisco, California • Washington D.C., District of Columbia • Atlanta, Georgia + 5 more

Conditions: Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions: Dapsone; Drug
Lead sponsor: Jacobus Pharmaceutical; Industry
Eligibility: 12 Years and older
Healthy volunteers: Healthy volunteers not accepted
U.S. locations: 1
States / cities: Los Angeles, California

Conditions: Hypogammaglobulinemia, Autoimmune Conditions, Rheumatic Conditions, Infections
Interventions: Panzyga, 10% Intravenous Solution, Placebo; Drug · Other
Lead sponsor: Octapharma; Industry
Eligibility: 18 Years and older
Enrollment: 360 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2026 – 2029
U.S. locations: 8
States / cities: Glendale, Arizona • Mesa, Arizona • Scottsdale, Arizona + 5 more

Conditions: Covid-19 Prevention
Interventions: Ad26.COV2.S, Placebo; Biological
Lead sponsor: Janssen Vaccines & Prevention B.V.; Industry
Eligibility: 18 Years and older
Enrollment: 1,085 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2020 – 2023
U.S. locations: 7
States / cities: San Diego, California • Melbourne, Florida • Peoria, Illinois + 4 more

Conditions: IV Catheter-Related Infection or Complication
Interventions: SafeBreak Vascular; Device
Lead sponsor: Lineus Medical; Industry
Eligibility: 18 Years and older
Enrollment: 148 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2020
U.S. locations: 1
States / cities: Hartford, Connecticut

Conditions: Fractures, Open
Interventions: Tobramycin, Placebo: normal saline; Drug · Other
Lead sponsor: University of Virginia; Other
Eligibility: 18 Years to 70 Years
Enrollment: 11 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2015 – 2019
U.S. locations: 1
States / cities: Charlottesville, Virginia

Conditions: HIV Infections, Sexually Transmitted Infection
Interventions: PrEPwise, Usual care; Behavioral · Other
Lead sponsor: Boston University; Other
Eligibility: 18 Years and older · Female only
Enrollment: 108 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2027 – 2028
U.S. locations: 1
States / cities: Norfolk, Virginia

Conditions: Prophylaxis, Stem Cell Transplant Complications
Interventions: Levofloxacin, Ciprofloxacin; Drug
Lead sponsor: Henry Ford Health System; Other
Eligibility: 18 Years to 75 Years
Enrollment: 308 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2018 – 2024
U.S. locations: 1
States / cities: Detroit, Michigan

Conditions: HIV Infections, Substance Use, Sexual Assault
Interventions: Enhanced intervention, Usual Care; Behavioral
Lead sponsor: The University of Texas Health Science Center, Houston; Other
Eligibility: 17 Years to 25 Years
Enrollment: 90 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2027
U.S. locations: 1
States / cities: Houston, Texas

Conditions: Prophylaxis, COVID-19, Health Care Worker, Hydroxychloroquine
Interventions: Hydroxychloroquine Pre-Exposure Prophylaxis, Placebo oral tablet; Drug
Lead sponsor: GeoSentinel Foundation; Other
Eligibility: 18 Years and older
Enrollment: 374 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2020
U.S. locations: 1
States / cities: New York, New York

Conditions: Influenza, Healthy
Interventions: Trivalent Influenza Vaccine, Placebo; Biological · Other
Lead sponsor: MedImmune LLC; Industry
Eligibility: 18 Years to 49 Years
Enrollment: 301 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2015 – 2016
U.S. locations: 3
States / cities: South Miami, Florida • Stockbridge, Georgia • Portland, Oregon

Conditions: Sexually Transmitted Diseases, HIV Infections
Interventions: Healthy Relationships; Behavioral
Lead sponsor: Centers for Disease Control and Prevention; Federal
Eligibility: 18 Years to 24 Years · Male only
Enrollment: 33 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2005 – 2009
U.S. locations: 1
States / cities: New York, New York

Conditions: Sexually Transmitted Infections, HIV Infections
Interventions: Experimental; Behavioral
Lead sponsor: University of California, San Diego; Other
Eligibility: 18 Years and older · Male only
Enrollment: 181 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2010 – 2017
U.S. locations: 3
States / cities: Los Angeles, California • San Diego, California • Torrance, California

Conditions: Diarrhea
Interventions: Rifaximin; Drug
Lead sponsor: Bausch Health Americas, Inc.; Industry
Eligibility: 18 Years and older
Enrollment: 660 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2005 – 2008
U.S. locations: 3
States / cities: South Miami, Florida • Houston, Texas • La Porte, Texas

Search by objective public record fields.

Improving HIV Prevention Skills in People With Serious Mental Illnesses

Doxy-Post-exposure Prophylaxis

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

An Open Label Demonstration Project and Phase II Safety Study of Pre-Exposure Prophylaxis Use Among 15 to 17 Year Old Young Men Who Have Sex With Men (YMSM)

Safety, Efficacy and Preventative Effect of a Head Lice Product (X92001483) vs. Nix Creme Rinse (1% Permethrin).

VRC 320: A Phase I, Randomized Clinical Trial to Evaluate the Safety and Immunogenicity of a Zika Virus DNA Vaccine, VRC-ZKADNA090-00-VP, Administered Via Needle and Syringe or Needle-free Injector, PharmaJet, inHealthy Adults

Stress Ulcer Prophylaxis Versus Placebo in Critically Ill Infants With Congenital Heart Disease

Safety of and Immune Response to an Adenoviral HIV-1 Vaccine in Healthy Adults

Weekly Dosing of Malarone ® for Prevention of Malaria

Timing of Prophylactic Antibiotics for Cesarean Sections

Study to Evaluate the Safety Tolerability and Acceptability of Long Acting Injections of the Human Immunodeficiency Virus (HIV) Integrase Inhibitor, GSK1265744, in HIV Uninfected Men (ECLAIR)

Dapsone 100 Mg Versus 50 as Primary Prophylaxis for Pneumocystis Carinii Pneumonia (PCP) in Patients With AIDS-Related Complex (ARC)

Supporting Weak Immune System During Autoimmune Therapy: Testing Panzyga to Prevent Infections

A Study of Ad26.COV2.S in Adults (COVID-19)

A Clinical Trial Using a New Medical Device to Evaluate Its Impact on IV Care and Clinical Complications

Locally Applied Antibiotics for Infection Prophylaxis in Treatment of Open Fractures

PrEPwise Pilot Among Black Women in Eastern Virginia

Ciprofloxacin Versus Levofloxacin in Stem Cell Transplant

Improving HIV Prevention and Substance Use Post-Sexual Assault Services

HEalth Care Worker pROphylaxis Against COVID-19: The HERO Trial

Study to Evaluate the Safety of 3 New 6:2 Influenza Virus Reassortants in Adults for the 2015-2016 Season

Adopting and Demonstrating the Adaptation of Prevention Techniques (ADAPT), Harlem United Community AIDS Center

A Web-based Intervention Study to Reduce High-risk Sexual Behavior by Persons Living With HIV AIDS (PLWH)

Prevention of Travelers' Diarrhea in Subjects Traveling Outside the U.S.