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 4
A Study to Investigate the Immunogenicity and Safety of mRNA COVID-19 Variant-containing Vaccine Formulations
ModernaTX, Inc.
- Location
- Atlanta, GA + 5 other US sites
- Eligibility basics
- Ages 6 mo+
- RecruitingHealthy volunteers
Evaluation of One-Shot Vision Differential Diagnosis (OSVDE) and Multi-Step Conversational Non-Inferiority (MSCNE) in AI Medical Interviewing
Magic Health Inc. (d.b.a. Nolla Health)
- Location
- New York, NY
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Helix Research Network
Helix, Inc
- Location
- Fort Wayne, IN + 13 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
A Biospecimen Collection Study of Leukapheresis-Derived Circulating Tumor Cells, Immune Cells, and Progenitor Cells.
BioCytics, Inc.
- Location
- Huntersville, NC
- Eligibility basics
- Ages 5+
- RecruitingHealthy volunteers
MyVitalC: Sleep and Everyday Headache Management
Efforia, Inc
- Location
- New York, NY
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
30 Day Insulin Balance Metabolic Health Optimization Protocol
Efforia, Inc
- Location
- New York, NY
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Regeneration of Acutely Injured Nerves With Temporary Electrical Stimulation
Epineuron Technologies Inc.
- Location
- Gainesville, FL + 3 other US sites
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Immune Defense Protein Impact On Respiratory Immune Outcomes
Quantec Ltd
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteers
Clinical Validation of Early Detection Blood Test for Universal Large-scale Breast Cancer Screening
Syantra Inc.
- Location
- Phoenix, AZ
- Eligibility basics
- Ages 30–75 · Women only
- RecruitingHealthy volunteers
Real-World Evaluation of AI Enabled Multi-Spectral Imaging (MSI) for AMD Biomarker Detection
AI-Spectral
- Location
- Woodbridge, NJ
- Eligibility basics
- Ages 40+
- RecruitingHealthy volunteers
Evaluating Screening Adherence Between Moment for Parents App and Attention Control
Poisera, Inc.
- Location
- Ann Arbor, MI
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
An Efficacy Study of a Dietary Supplement Drink Mix for Urinary Health Improvement
Bonafide Health
- Location
- Harrison, NY
- Eligibility basics
- Ages 18–75 · Women only
- RecruitingHealthy volunteers
Hunger Perception and Weight-Related Outcomes Following Use of a Leptin-Supporting Dietary Supplement
Efforia, Inc
- Location
- New York, NY
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Flourish: Exploring the Early Infant Gut Microbiome
Seeding Inc
- Location
- Austin, TX
- Eligibility basics
- Ages 0 mo–4 mo
- RecruitingHealthy volunteers
A Study Evaluating the Safety and Efficacy of the 3M™ V.A.C. Peel and Place Dressing
Solventum US LLC
- Location
- Indianapolis, IN + 2 other US sites
- Eligibility basics
- Ages 22+
- RecruitingHealthy volunteers
Data Gathering for A10900
Optos, PLC
- Location
- Anaheim, CA + 2 other US sites
- Eligibility basics
- Ages 22+
- RecruitingHealthy volunteers
Autologous Hair Follicle Secretome for Androgenic Alopecia (Single Site)
Acorn Biolabs Inc.
- Location
- West Hollywood, CA
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Evaluation of Gut-Related Well-Being and Mood Effects of a Daily Nutritional Food Ingredient From the Co-Fermentation of Fungal Mycelium (Pleurotus Pulmonarius) and Microalgae (Chlorella Vulgaris)
Koralo GmbH
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Evaluate the Continued Safety and Performance of the Foot and Ankle Products
Arthrex, Inc.
- Location
- Sacramento, CA + 2 other US sites
- Eligibility basics
- Ages 2+
- RecruitingHealthy volunteers
Impact of Help-Seeking Behaviors on Allergic Rhinitis and Mental Health: A Longitudinal Study
QHSLab, Inc.
- Location
- West Palm Beach, FL
- Eligibility basics
- Ages 4–100
- RecruitingHealthy volunteers
The Effects of a Nutritional Supplement on Sleep Quality
Athletic Greens International
- Location
- Santa Monica, CA
- Eligibility basics
- Ages 35–65
- RecruitingHealthy volunteers
Specimens for Lung Cancer Panel Design
Maverix Medical
- Location
- Phoenix, AZ
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 2
Effects of NLS-133, a Potential Non-Hormonal "On-Demand" Male Contraceptive
Next Life Sciences
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–55 · Men only
- RecruitingHealthy volunteers
Molecular Indicators of Systematic Fitness
VO Health, Inc.
- Location
- New Haven, CT
- Eligibility basics
- Ages 18+
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.