Core: healthy volunteers
Studies for healthy volunteers recruiting now
These studies say in their official record that they accept healthy volunteers. Many are Phase 1 studies that test how a new medicine is absorbed and tolerated; others recruit healthy people as a comparison group alongside patients.
5,002 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingHealthy volunteers
The Influence of Honey-flavored Yogurt on Low-grade Inflammation and Gut Health in Middle to Older Aged Women.
University of California, Davis
- Location
- Davis, CA
- Eligibility basics
- Ages 45–65 · Women only
- RecruitingHealthy volunteers
Lipoprotein Kinetics in T1D
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Mechanisms Preventing Pharyngeal Reflux
Medical College of Wisconsin
- Location
- Milwaukee, WI
- Eligibility basics
- Ages 18–85
- RecruitingHealthy volunteers
Comparing Clinical Outcomes of Suture Button Versus Fibulink Fixation for Acute Ankle Syndesmosis Injuries
University of California, San Diego
- Location
- San Diego, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
BSGM to Evaluate Patients With GI Symptoms
Children's Hospital of Philadelphia
- Location
- San Diego, CA + 4 other US sites
- Eligibility basics
- Ages 8–25
- RecruitingHealthy volunteers
Cardiovascular Risk and Circadian Misalignment in Short Sleepers - Role of Extended Eating Period
Pennington Biomedical Research Center
- Location
- Baton Rouge, LA
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
WISE-2B Brain Study (Weight Loss Intervention Surgical Effects on Brain Function)
University of Florida
- Location
- Gainesville, FL
- Eligibility basics
- Ages 20–75
- RecruitingHealthy volunteers
Relationship Between Great Toe Strength And Symptoms of Chemotherapy-Induced Peripheral Neuropathy (CIPN)
University of Florida
- Location
- Gainesville, FL
- Eligibility basics
- Ages 18–90
- RecruitingHealthy volunteers
Proactive Costs of Care Study
Cedars-Sinai Medical Center
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Optimizing Brain Excitability in Depression
Stanford University
- Location
- Iowa City, CA + 1 other US site
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Conformal Ablative Radiotherapy in Older Women (CARMEN) With Breast Cancer Undergoing Non-Operative Management
University of Kansas Medical Center
- Location
- Kansas City, KS
- Eligibility basics
- Ages 65+ · Women only
- RecruitingHealthy volunteers
Interrogation of Exosome-mediated Intercellular Signaling in Patients With Pancreatic Cancer
Memorial Sloan Kettering Cancer Center
- Location
- New York, NY
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 2/Phase 3
Ketone Ester Intervention in Alcohol Use Disorder
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 21–65
- RecruitingHealthy volunteers
Transcranial Magnetic Stimulation (TMS) Study for Adults With Autism Spectrum Disorder (ASD)
Yale University
- Location
- New Haven, CT
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
Intermuscular Coherence as a Biomarker for ALS
University of Chicago
- Location
- Miami, FL + 2 other US sites
- Eligibility basics
- Ages 20–90
- RecruitingHealthy volunteersPhase 4
Characterization of Humoral and Cellular Immune Responses Elicited by Influenza Vaccination in Healthy Adults
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Effects of Daily Beef Intake, as a Component of a Heart-Healthy Diet on Cellular Zinc
University of California, Davis
- Location
- Davis, CA
- Eligibility basics
- Ages 55–70
- RecruitingHealthy volunteers
Retrograde Femoral Nail-Advanced Outcomes for Fixation of Distal Femur and Femoral Shaft Fractures
University of California, San Diego
- Location
- San Diego, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Percutaneous Nerve Evaluation Trial Time
University of Chicago
- Location
- Chicago, IL
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
I-InTERACT Preterm Parenting
Children's Hospital Medical Center, Cincinnati
- Location
- Cincinnati, OH
- Eligibility basics
- Ages 3–8
- RecruitingHealthy volunteers
Sparking Potential, Revealing Infant Neurocognitive Traits
University of Wisconsin, Madison
- Location
- Madison, WI
- Eligibility basics
- Ages 4 mo–2
- RecruitingHealthy volunteersPhase 2
Bipolar Androgen Therapy (BAT) and Radium-223 (RAD) in Metastatic Castration-resistant Prostate Cancer (mCRPC)
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18+ · Men only
- RecruitingHealthy volunteersPhase 4
Self-Adjusted Nitrous Oxide: A Feasibility Study in the Setting of Vasectomy
Beth Israel Deaconess Medical Center
- Location
- Boston, MA
- Eligibility basics
- Ages 21–85 · Men only
- RecruitingHealthy volunteers
Resilience Programming for Occupational Therapy Students
Loma Linda University
- Location
- Loma Linda, CA
- Eligibility basics
- Ages 18–65
Who these studies look for
“Healthy” is decided at screening, not by you. Sites usually check vital signs, blood and urine tests, an ECG, your medications and sometimes your BMI or smoking status. A study can still turn you away for reasons that have nothing to do with being unwell, such as timing or a full roster.
Matching a page like this one never means you qualify. Each research team decides eligibility at screening.
Questions
Do healthy volunteer studies pay?
Many do, because volunteers give up time and follow strict schedules, but amounts are set by each study and are usually only confirmed by the research site. When a record states an amount we show the exact wording; otherwise we say compensation is not disclosed.
What happens at a screening visit?
Expect consent paperwork first, then a health questionnaire, vital signs, blood and urine samples and often an ECG. You can ask questions and withdraw at any time, before or after you sign.