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.
4,991 recruiting studiesSource: ClinicalTrials.gov, refreshed October 28, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingHealthy volunteersPhase 1/Phase 2
Investigating Whether Acute Elevation of Fatty Acid Levels Alters Cerebral Glucose Transport and Metabolism
University of North Carolina, Chapel Hill
- Location
- Chapel Hill, NC + 1 other US site
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteersPhase 1
Ondansetron Use for Preventing Pruritus in Patients Undergoing Cesarean Section
Wayne State University
- Location
- Detroit, MI
- Eligibility basics
- Ages 18–50 · Women only
- RecruitingHealthy volunteersPhase 1
Identifying Correlates of Brain Microglial Activation in Neuropsychiatric Syndromes: a Dimensional Approach
The University of Texas Health Science Center, Houston
- Location
- Houston, TX
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersOvernight stay mentioned
Inpatient Capture: A Mixed Methods Study to Develop an Inpatient Lung Cancer Screening Program in a Safety Net Hospital.
Physician Affiliate Group of New York
- Location
- New York, NY
- Eligibility basics
- Ages 50–80
- RecruitingHealthy volunteersEarly Phase 1
Curcumin and EGCG Supplementation to Improve Serum BDNF and Mood Disturbance
Auburn University
- Location
- Auburn, AL
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteersEarly Phase 1
Gene Expression Changes In Young and Geriatric Skin
Wright State University
- Location
- Fairborn, OH
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteersPhase 1
Maternal Choline Supplementation and Cannabis Use During Pregnancy: Impact on Early Brain Development
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteersEarly Phase 1
Type 1 Diabetes, Endothelin, and Skeletal Muscle Mitochondrial Dysfunction: The Role of Sirtuin-1
Augusta University
- Location
- Augusta, GA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1
Testing Use of Topical Imipramine in Reducing Ultraviolet B Induced Microvesicle Particle Release in Photosensitive Subjects
Wright State University
- Location
- Fairborn, OH
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteersEarly Phase 1
R01.Aim 2.Study 1: IsoReach
Shirley Ryan AbilityLab
- Location
- Chicago, IL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1
Imaging Synapses With [11C] UCB-J in the Human Brain
Davidzon, Guido, M.D.
- Location
- Palo Alto, CA + 1 other US site
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersEarly Phase 1
Promoting Playfulness
Florida Gulf Coast University
- Location
- Fort Myers, FL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Monoferric for Prenatal Iron Deficiency
Oregon Health and Science University
- Location
- Portland, OR
- Eligibility basics
- Ages 18–65 · Women only
- RecruitingHealthy volunteersOvernight stay mentioned
Suicide Treatment Alternatives for Teens
Children's Hospital Medical Center, Cincinnati
- Location
- Glen Oaks, NY + 2 other US sites
- Eligibility basics
- Ages 12–18
- RecruitingHealthy volunteersPhase 1
CogT pSOPT Intervention Study
Stanford University
- Location
- Palo Alto, CA
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteersPhase 1/Phase 2
Peppermint Oil for the Treatment of Interstitial Cystitis / Bladder Pain Syndrome
University of Louisville
- Location
- Louisville, KY
- Eligibility basics
- Ages 18–65 · Women only
- RecruitingHealthy volunteersPhase 1/Phase 2
Hyperpolarized Xenon-129 MR Imaging of the Lung
University of Virginia
- Location
- Charlottesville, VA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1/Phase 2
Comparison of the Short-Term Effect of Dietary Carbohydrate Restriction Versus Exogenous Ketone Supplementation on Myocardial Glucose Suppression and Timing to Achieve a State of Ketosis Using FDG PET/CT Serial Imaging
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1
Treating Primary Sclerosing Cholangitis and Biliary Atresia With Vancomycin
Sacramento Pediatric Gastroenterology
- Location
- Sacramento, CA
- Eligibility basics
- Ages 0 mo–40
- RecruitingHealthy volunteersPhase 3
BEATRIX: A Study to Learn About a Group B Streptococcus Vaccine in Healthy Pregnant Women and Their Babies
Pfizer
- Location
- Birmingham, AL + 109 other US sites
- Eligibility basics
- Ages 0 mo–49
- RecruitingHealthy volunteers
UNITY DX Cornea Study
Alcon Research
- Location
- Salt Lake City, UT
- Eligibility basics
- Ages 22+
- RecruitingHealthy volunteersPhase 4
A Study to Investigate the Immunogenicity and Safety of mRNA COVID-19 Variant-containing Formulations
ModernaTX, Inc.
- Location
- Overland Park, KS + 4 other US sites
- Eligibility basics
- Ages 12+
- RecruitingHealthy volunteers
Autologous Hair Follicle Derived Secretome as Adjunct to Aesthetic Procedures
Acorn Biolabs Inc.
- Location
- Fresno, CA + 16 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 3
A Study to Learn About the Safety of an Expanded Pneumococcal Vaccine in Healthy Infants
Pfizer
- Location
- Estero, FL + 24 other US sites
- Eligibility basics
- Ages 1 mo–4 mo
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.