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 volunteers
Safety and Effectiveness of Mosaic for the Treatment of Midface Volume Deficit
Helios Aesthetics Inc.
- Location
- Bradenton, FL + 4 other US sites
- Eligibility basics
- Ages 22+
- RecruitingHealthy volunteers
Safety and Efficacy of Flaus Electric Flosser on Plaque and Gingivitis Compared to a Manual Toothbrush
Flaus, Inc
- Location
- Fort Wayne, IN
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Appetite and Cognition Response to a Breakfast Cereal
General Mills
- Location
- Minneapolis, MN
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersPhase 2
Caring Recharge Project for Caregivers of Individuals With Alzheimer's Disease
Photozig, Inc.
- Location
- Campbell, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Radicle GI Health RAATM: A Study Assessing the Impact of Health and Wellness Products on Gastrointestinal-Related Quality of Life and Related Health Outcomes
Radicle Science
- Location
- Del Mar, CA
- Eligibility basics
- Ages 21–105
- RecruitingHealthy volunteers
Radicle GI HealthTM VNB: A Study Assessing the Impact of Health and Wellness Products on Constipation and Related Health Outcomes
Radicle Science
- Location
- Del Mar, CA
- Eligibility basics
- Ages 21–105
- RecruitingHealthy volunteersPhase 2
Study Testing the Efficacy, Safety, and Tolerability of EDI048 in Cryptosporidium Infection Model in Healthy Adults
Novartis Pharmaceuticals
- Location
- Baltimore, MD + 1 other US site
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
A Study to Learn About the Safety of PENBRAYA During Pregnancy
Pfizer
- Location
- New York, NY
- Eligibility basics
- Ages 10–25 · Women only
- RecruitingHealthy volunteers
Study to Evaluate the Safety of Retreatment With Restylane® Lyft With Lidocaine for Augmentation of the Chin Region
Galderma R&D
- Location
- Westport, CT + 6 other US sites
- Eligibility basics
- Ages 22+
- RecruitingHealthy volunteers
A Clinical Trial to Evaluate the Effects of a Powder Supplement in Supporting Lean Muscle Development, Hormone-Related Wellness, Digestive Comfort, Dermatologic Health, and Overall Wellness
Clean Nutraceuticals
- Location
- Las Vegas, NV
- Eligibility basics
- Ages 21–45
- RecruitingHealthy volunteers
Effects of Eggshell Membrane and Curcumin Extract Supplementation, Separately or Combined, on Recovery From Intense Exercise
ESM Technologies, LLC
- Location
- College Station, TX
- Eligibility basics
- Ages 18–40 · Men only
- RecruitingHealthy volunteers
Brain Stimulation Paired With Structured Language Learning in Adults
General Neuro Inc.
- Location
- Boston, MA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Data Collection Study Using CS (CardiacSense) BP (Blood Pressure) Watch and Pillow Systems
CardiacSense Ltd.
- Location
- Louisville, CO
- Eligibility basics
- Ages 50–80
- RecruitingHealthy volunteers
Effect of Sage Extract Supplementation on Cognitive Function in Middle-Aged Men and Women
ESM Technologies, LLC
- Location
- College Station, TX
- Eligibility basics
- Ages 40–60
- RecruitingHealthy volunteers
Comparative Self-collection for Cervical Cancer Screening Pivotal Study
Mel Mont Medical
- Location
- Phoenix, AZ + 10 other US sites
- Eligibility basics
- Ages 25–65 · Women only
- RecruitingHealthy volunteers
An Evaluation of Long-Term Supplement Use on Biological Age and Metabolic Health Markers - The BioAge Trial
Shaklee Corporation
- Location
- Addison, IL
- Eligibility basics
- Ages 40+
- RecruitingHealthy volunteers
Tempus Open Link for Individual Voices in Innovative Analytics Registry: Platform Protocol for Multimodal Real-World Evidence in Cancer
Tempus AI
- Location
- Chicago, IL
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Shield Post-Approval Study Protocol
Guardant Health, Inc.
- Location
- Chandler, AZ + 48 other US sites
- Eligibility basics
- Ages 45–81
- RecruitingHealthy volunteersPhase 4
A Study to Learn About a COVID-19 Vaccine in Healthy Adults 18 Through 64 Years of Age
BioNTech SE
- Location
- Walnut Creek, CA + 4 other US sites
- Eligibility basics
- Ages 18–64
- RecruitingHealthy volunteers
Intalight Reference Database Protocol for VG200D
Intalight, Inc
- Location
- San Diego, CA + 2 other US sites
- Eligibility basics
- Ages 22+
- RecruitingHealthy volunteers
A Clinical Trial to Evaluate the Effects of an Omega-3-containing Supplement on DHA and EPA Levels in the Blood
Revive Active
- Location
- Las Vegas, NV
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Safety and Effectiveness Evaluation of the COLO-BT as an Alternative Treatment to the Ileostomy
JSR Medical Co., Ltd.
- Location
- Buffalo, NY + 2 other US sites
- Eligibility basics
- Ages 19–80
- RecruitingHealthy volunteers
Hybrid Delivery to Increase Access and Sustainability: Evaluating ezParent Implementation
Klein Buendel, Inc.
- Location
- Columbus, OH
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
An Early Prospective Study of the Traq™ Device for Characterization of Binocular Ocular Function in Normal Subjects and Subjects With Recent Traumatic Brain Injury
Rebiscan, Inc.
- Location
- Waukee, IA
- Eligibility basics
- Ages 12+
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.