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 volunteersPhase 2
Probiotic Supplementation in Optimizing Iron and Hematological Status Among Pregnant Females
University of Illinois at Chicago
- Location
- Chicago, IL
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteers
Effectiveness Comparison of 3D-Printed and Conventional Ear Tip Comfort in Individuals With Hearing in the Normal Range
University of Arizona
- Location
- Tucson, AZ
- Eligibility basics
- Ages 18–89
- RecruitingHealthy volunteers
Evaluating Stairway Designs for Individuals With Vision Impairment
The University of Alabama in Huntsville
- Location
- Huntsville, AL
- Eligibility basics
- Ages 65+
- RecruitingHealthy volunteers
Diet Synergy in Muscle Protein Synthesis
University of Illinois at Urbana-Champaign
- Location
- Urbana, IL
- Eligibility basics
- Ages 19–40
- RecruitingHealthy volunteers
The Effects of Brief Periods of Exercise on Blood Pressure
University of Hartford
- Location
- West Hartford, CT
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
ACT Group for Family Caregivers of Stroke Survivors
The Wright Institute
- Location
- Alameda, CA
- Eligibility basics
- Ages 40+
- RecruitingHealthy volunteers
International (Pediatric) Peritoneal Biobank
Heidelberg University
- Location
- Kansas City, MO
- Eligibility basics
- Ages 0 mo–90
- RecruitingHealthy volunteers
Inspiring Seniors Towards Exercise Promotion to Protect Cognition
Emory University
- Location
- Atlanta, GA
- Eligibility basics
- Ages 65+
- RecruitingHealthy volunteersPhase 4
Woodsmoke Exposure, Influenza Infection, and Nasal Immunity
University of North Carolina, Chapel Hill
- Location
- Chapel Hill, NC
- Eligibility basics
- Ages 18–49
- RecruitingHealthy volunteers
Bridge the Gap (BTG) - Black Youth Group
Children's Hospital Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 12–17
- RecruitingHealthy volunteers
Influences of Long-acting Reversible Contraceptives on Iron Status and Physiological Responses to Extreme Environments in Women
United States Army Research Institute of Environmental Medicine
- Location
- Natick, MA
- Eligibility basics
- Ages 18–40 · Women only
- RecruitingHealthy volunteers
Effects of Age, Sex and Isometric Exercise on Ventricular-Vascular Interactions During Cardiac Unloading
Tracy Baynard
- Location
- Boston, MA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Got Doxy- 'Flipping the Script' on STI PEP
Emory University
- Location
- Atlanta, GA + 1 other US site
- Eligibility basics
- Ages 18+ · Men only
- RecruitingHealthy volunteers
Gut, Immune, and Vascular Health in Metabolically Healthy Obesity
Ball State University
- Location
- Muncie, IN
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Pharmacogenetic Determinants Of Treatment Response In Children
St. Jude Children's Research Hospital
- Location
- Memphis, TN
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Protocol for Collecting, Banking and Distributing Human Tissue Samples: St. Jude Children's Research Hospital Tissue Resources Core Facility
St. Jude Children's Research Hospital
- Location
- Huntsville, AL + 12 other US sites
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Cardiovascular Health Improvement Project
University of Michigan
- Location
- Ann Arbor, MI
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Creation of a Biospecimen Repository From Patients With Interstitial Lung Diseases (ILD)
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Genetic Studies of Early-onset Dementia
Columbia University
- Location
- New York, NY
- Eligibility basics
- Ages 35+
- RecruitingHealthy volunteers
The SKyRoCKeT Study
University of North Carolina, Charlotte
- Location
- Charlotte, NC
- Eligibility basics
- Ages 6–20
- RecruitingHealthy volunteers
Basic and Applied Research on Extinction Bursts
Rutgers, The State University of New Jersey
- Location
- Somerset, NJ
- Eligibility basics
- Ages 3–17
- RecruitingHealthy volunteers
Individual Cerebral Hemodynamic Oxygenation Relationships (ICHOR 1)
Children's Hospital Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Up to age 18
- RecruitingHealthy volunteersPhase 2
Dyadic Financial Incentive Treatments for Dual Smoker Couples
University of Oklahoma
- Location
- Tulsa, OK
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Opioid Sparing Effect of an ISP Nerve Block on Post-Op Pain Control in Posterior Cervical Spine Surgery
Stony Brook University
- Location
- Stony Brook, NY
- Eligibility basics
- Ages 18–75
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.