Prevention Clinical Trials

300 recruitingLast updated: June 17, 2026

There are 300 actively recruiting prevention clinical trials across 61 countries. Studies span Not Applicable, Phase 2, Phase 4, Phase 1, Phase 3. Top locations include Boston, Massachusetts, United States, Los Angeles, California, United States, Ghent, Belgium. Updated daily from ClinicalTrials.gov.


Prevention Trials at a Glance

300 actively recruiting trials for prevention are listed on ClinicalTrialsFinder across 6 cities in 61 countries. The largest study group is Not Applicable with 212 trials, with the heaviest enrollment activity in Boston, Los Angeles, and Ghent. Lead sponsors running prevention studies include University Ghent, University of Colorado, Denver, and University of North Carolina, Chapel Hill.

Browse prevention trials by phase

Treatments under study

About Prevention Clinical Trials

Looking for clinical trials for Prevention? There are currently 30 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Prevention trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Prevention clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 300 trials

Recruiting
Not Applicable

MELIORA Virtual Coach Intervention for Breast Cancer Prevention

Breast Cancer Prevention
Harokopio University2,080 enrolled7 locationsNCT07200427
Recruiting
Not Applicable

RESTORE Study R61 Phase: Recovery and Engagement for Stimulant Users on Re-entry

HIVHIV PreventionJustice Involved Populations+1 more
University of Texas Southwestern Medical Center40 enrolled2 locationsNCT07136363
Recruiting
Not Applicable

Mothers and CareGivers Investing in Children Study 2.0

Childhood Obesity PreventionParenting BehaviorInfant Growth
University of Texas at Austin266 enrolled2 locationsNCT06719102
Recruiting
Not Applicable

Advancing Water Security: A Community Participatory School-Based Hydration Intervention

Obesity PreventionDental Caries
Virginia Commonwealth University7,200 enrolled1 locationNCT06714929
Recruiting
Phase 4

Post-Injectable Cabotegravir Antiretroviral Salvage Strategy Options Trial

HIV Prevention
University of Witwatersrand, South Africa100 enrolled3 locationsNCT06485154
Recruiting
Phase 1

Quadrivalent Influenza HA Stem Vaccine VRC-FLUMOS0122-00-VP (SteMos1) With and Without ALFQ Adjuvant in Healthy Adults

Influenza PreventionPandemic Influenza Prevention
National Institute of Allergy and Infectious Diseases (NIAID)56 enrolled1 locationNCT07111078
Recruiting
Not Applicable

BILe Acid-gut Microbiome Axis MODification Through Diet Education for Colorectal Cancer Prevention

Colorectal AdenomaColorectal Cancer Prevention
Massachusetts General Hospital40 enrolled1 locationNCT07162337
Recruiting
Not Applicable

Syncing Screening and Services for Suicide Prevention Across Health and Jail Systems

Suicide Prevention
Henry Ford Health System5,250 enrolled2 locationsNCT06506344
Recruiting
Not Applicable

Feasibility of Internet-based HIV Prevention Research

HIV PreventionInjection Drug Use
Montefiore Medical Center500 enrolled1 locationNCT07625917
Recruiting
Not Applicable

Assessing the Influence of Habitual Beef Intake on Key Molecular Markers of Brain Health

Cardiometabolic healthHealthy AgingBrain Health+2 more
South Dakota State University20 enrolled1 locationNCT07623785
Recruiting
Not Applicable

Using PrEP, Doing It for Ourselves

HIV PreventionPrEP
Duke University1,000 enrolled1 locationNCT06638892
Recruiting
Phase 2

GLP-1 Receptor Agonists to Decrease Ethanol and CVD Risk in HIV

Cardiovascular Disease PreventionSmoking, CigaretteHIV+1 more
Vanderbilt University Medical Center200 enrolled1 locationNCT07221214
Recruiting
Not Applicable

Adapting a Brief Suicide Intervention for Pediatric Primary Care: Enhancing Uptake and Impact

Suicide Prevention
University of Washington48 enrolled3 locationsNCT06499740
Recruiting

Rutgers University Study of the Genetics of Breast Cancer.

Breast CancerBreast Cancer PreventionBreast Cancer Risk
Rutgers, The State University of New Jersey25,000 enrolled1 locationNCT06773897
Recruiting
Not Applicable

Safe Spaces 4 Sexual Health

HIV PreventionHIV Counseling and TestingHIV Risk Behavior
Johns Hopkins University100 enrolled2 locationsNCT07133555
Recruiting

Prediction Model of Colorectal Adenoma Recurrence-Carcinogenesis Risk With TCM-WM Multimodal Feature Fusion

Colorectal Cancer Control and Prevention
Beijing Friendship Hospital3,000 enrolled1 locationNCT07611266
Recruiting
Not Applicable

Advancing Biopsychosocial Care Training Initiative

ObesityObesity and OverweightWeight Management+2 more
Washington University School of Medicine6,200 enrolled1 locationNCT07049861
Recruiting
Not Applicable

Empowering Vietnamese Americans

Cancer PreventionHPV Vaccination
Michigan State University60 enrolled1 locationNCT07164391
Recruiting
Phase 1

A Study Evaluating MDX2301 in Healthy Adults and Adults at Higher Risk for Severe COVID-19.

COVID-19COVID-19 (Prevention)
ModeX Therapeutics, An OPKO Health Company80 enrolled2 locationsNCT07445971
Recruiting
Not Applicable

Home-Based Exercise Programs for Fall Prevention in Parkinson Disease

ExercisePARKINSON DISEASE (Disorder)Falls prevention
Uludag University30 enrolled1 locationNCT07590700