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.
4,995 recruiting studiesSource: ClinicalTrials.gov, refreshed October 27, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingHealthy volunteers
ADAPT Study: Assessing Diet, Appetite and Physiology Throughout Weight Loss Study)
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteers
Talk With Me Baby to Enhance the Early Home Language Environment
IDeA States Pediatric Clinical Trials Network
- Location
- Kansas City, KS
- Eligibility basics
- Ages 0 mo–10 mo
- RecruitingHealthy volunteers
Alcohol and the Social Brain: An Alcohol-Administration Hyperscanning Study Employing a Within-Subject Design
University of Illinois at Urbana-Champaign
- Location
- Champaign, IL
- Eligibility basics
- Ages 21–30
- RecruitingHealthy volunteers
CONTIGO - A Narrative Intervention to Enhance Genetic Counseling and Testing
Georgetown University
- Location
- Washington D.C., DC + 1 other US site
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
South Asians and Coronary Plaque Registry
University of Texas Southwestern Medical Center
- Location
- Dallas, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Cryoablation Effects on Acute and Chronic Pain After Thoracotomy and Thoracoscopy
University of Michigan
- Location
- Ann Arbor, MI
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 3
Translaryngeal Vibration for Hyperfunctional Voice Disorders
Texas Christian University
- Location
- Fort Worth, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
UIC Multi-Ethnic DCM Registry
University of Illinois at Chicago
- Location
- Chicago, IL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Evaluation of Periapical Healing Following Endodontic Microsurgery With Leukocyte and Platelet Rich Fibrin (L-PRF)
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Early Avocado Exposure on Development and the Gut Microbiome in American Hispanic Infants
Arizona State University
- Location
- Phoenix, AZ
- Eligibility basics
- Ages 4 mo–6 mo
- RecruitingHealthy volunteers
Time Restricted Feeding, Muscle, and Metabolism
University of Arkansas, Fayetteville
- Location
- Fayetteville, AR
- Eligibility basics
- Ages 25–50
- RecruitingHealthy volunteers
Techquity by FAITH!
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
High-Resolution Lower Dose Dedicated Breast Computed Tomography (CT)
University of Arizona
- Location
- Tucson, AZ
- Eligibility basics
- Ages 40+ · Women only
- RecruitingHealthy volunteers
Real-time fMRI for Insular Cortex Brain State-triggered Experience Sampling
Drexel University
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteers
Studying Phenotypic Risks for Obesity and Underlying Traits in Young Infants
Pennington Biomedical Research Center
- Location
- Baton Rouge, LA
- Eligibility basics
- Ages 0 mo–4 mo
- RecruitingHealthy volunteers
Auditory Prediction and Error Evaluation in the Speech of Individuals Who Stutter
Arizona State University
- Location
- Tempe, AZ + 1 other US site
- Eligibility basics
- Ages 3+
- RecruitingHealthy volunteers
A Randomized Controlled Trial Testing the Effect of the Youth Mindful Awareness Program on Negative Affect (YMAP2).
Vanderbilt University
- Location
- Los Angeles, CA + 2 other US sites
- Eligibility basics
- Ages 12–17
- RecruitingHealthy volunteers
Connect to Baby: A Pilot Study of a Parenting and Coparenting Program
Georgetown University
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 2 mo–40
- RecruitingHealthy volunteers
Pulses: Optimizing Pulse Consumption for Cardiometabolic Health
University of Arizona
- Location
- Tucson, AZ
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Effects of Spirulina Supplementation on Mental Health in Healthy Adults
Arizona State University
- Location
- Phoenix, AZ
- Eligibility basics
- Ages 16–65
- RecruitingHealthy volunteers
Attitudes and Perceptions Attitudes and Smoking Perceptions in the Real Environment -II
University of Oklahoma
- Location
- Oklahoma City, OK
- Eligibility basics
- Ages 18–34
- RecruitingHealthy volunteers
Rapid Response of Stem Cells and Immune Cells for Efficacy
Natural Immune Systems Inc
- Location
- Klamath Falls, OR
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Cognitive Control & the Functional Organization of the Frontal Cortex
Brown University
- Location
- Providence, RI
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteers
School-based Paraeducator Education for Engagement at Recess
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 5+
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.