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
Breast Artery Calcification (BAC) and Female Cardiovascular Disease
Northwell Health
- Location
- Manhasset, NY
- Eligibility basics
- Ages 55–65 · Women only
- RecruitingHealthy volunteers
Alzheimer's Disease Genetics Study
Indiana University
- Location
- Nationwide, IN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Inflammation, Diabetes, Ethnicity and Obesity Cohort
University of California, San Francisco
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Mirror Neuron Network Dysfunction as an Early Biomarker of Neurodevelopmental Disorder
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 10 mo–65
- RecruitingHealthy volunteers
New Non-invasive Modalities for Assessing Retinal Structure and Function
Randy Kardon
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–99
- RecruitingHealthy volunteers
Objectively Diagnose and Monitor Treatment of Light Sensitivity
Randy Kardon
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteers
The EBC Recovery Study
University of Miami
- Location
- Miami, FL + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Parkinson Progression Marker Initiative Online (PPMI Online)
Michael J. Fox Foundation for Parkinson's Research
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Heat Waves and the Elderly - Cooling Modalities
University of Texas Southwestern Medical Center
- Location
- Dallas, TX
- Eligibility basics
- Ages 65+
- RecruitingHealthy volunteers
StableEyes With Active Neurofeedback
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21–70
- RecruitingHealthy volunteers
Beetroot Juice and Sleep
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersPhase 2
Parenting in 2 Worlds Multisite Trial
Arizona State University
- Location
- Phoenix, AZ + 3 other US sites
- Eligibility basics
- Ages 12+
- RecruitingHealthy volunteers
Effects of Estrogen on Heart Health in Women With Primary Ovarian Insufficiency
Massachusetts General Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 30–40 · Women only
- RecruitingHealthy volunteers
Digital Support Strategies for Caregiver Home Practice
Arizona State University
- Location
- Tempe, AZ
- Eligibility basics
- Ages 11+
- RecruitingHealthy volunteers
A Digital Intervention (ACT on Vaping App) for Vaping Cessation in Young Adult E-Cigarette Users
Fred Hutchinson Cancer Center
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–30
- RecruitingHealthy volunteers
Comparing a Workplace Resilience and a Physical Activity Intervention on Early Childhood Educators Well-being
University of North Carolina, Chapel Hill
- Location
- Chapel Hill, NC
- Eligibility basics
- Ages 18–99
- RecruitingHealthy volunteers
Implementation of a Beauty Salon-Based Strategy for Blood Pressure Management Among Women
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–79 · Women only
- RecruitingHealthy volunteers
The PREVENT Resilience Study
Emory University
- Location
- Atlanta, GA + 1 other US site
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Alcohol, Breast Cancer, and Metabolism
University of Illinois at Urbana-Champaign
- Location
- Urbana, IL
- Eligibility basics
- Ages 21–45 · Women only
- RecruitingHealthy volunteers
Community Enhanced Virtual Informed Consent
Mayo Clinic
- Location
- Jacksonville, FL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Effects of Dietary Supplements on Muscle Mass and Function While Using GLP-1 Medication
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
CVD 38000: Study of Responses to Vaccination With Typhoid and/or Cholera
University of Maryland, Baltimore
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Li-Fraumeni Syndrome/TP53 Biobank
Abramson Cancer Center at Penn Medicine
- Location
- Philadelphia, PA + 1 other US site
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Controls and Healthy Vasculature Initiative
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–90
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.