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
Cochlear Implants and Listening Effort: the Interaction of Cognitive and Sensory Constraints
NYU Langone Health
- Location
- Waltham, MA + 1 other US site
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteers
Microvascular Dysfunction in Obesity
Florida State University
- Location
- Tallahassee, FL
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Pediatric Hypertension and the Renin-Angiotensin SystEm (PHRASE)
Wake Forest University Health Sciences
- Location
- Winston-Salem, NC
- Eligibility basics
- Ages 7–18
- RecruitingHealthy volunteers
School Inner City Air Study
Massachusetts General Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 6–90
- RecruitingHealthy volunteers
Cognitive Control to Boost Physical Activity Adherence
University of Iowa
- Location
- Iowa City, IA + 1 other US site
- Eligibility basics
- Ages 40–65
- RecruitingHealthy volunteers
The Iowa ACEs and Sleep Cohort and Manipulating Sleep in Young Adults With ACEs Studies
Nathaniel Jenkins
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–29
- RecruitingHealthy volunteers
Impact of Native Chicory Inulin on Change and Persistence of Gut Microbiota
Purdue University
- Location
- West Lafayette, IN
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
The ADAPT Trial: Adapting Evidence-Based Obesity Interventions in Community Settings
Vanderbilt University Medical Center
- Location
- Nashville, TN
- Eligibility basics
- Ages 6–12
- RecruitingHealthy volunteers
A Mobile App to Improve 24-Hour Movement Guideline Adherence in Preschoolers
University of Kansas Medical Center
- Location
- Kansas City, KS
- Eligibility basics
- Ages 3–4
- RecruitingHealthy volunteers
Testing the Effects of a Text Message Caregiver Support Intervention for Latinos
University of Kansas Medical Center
- Location
- Fairway, KS
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
A Study That Collects Participant Data and Biospecimens to Analyze Pathogenic Exosomes That Mediate Increased Vascular Dementia Risk in Individuals With Herpes Zoster.
Center for Clinical Studies, Texas
- Location
- Houston, TX + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Supervision in Substance Use Disorder Treatment Programs
University of Arkansas
- Location
- Little Rock, AR
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
A Pilot Study to Evaluate Multi-Spectral and Laser Speckle Imaging and Multiphoton Microscopy During Vascular Occlusion
University of California, Irvine
- Location
- Irvine, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Brain Stimulation and Decision-making
Emory University
- Location
- Atlanta, GA
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
Home BP Monitoring
University Hospitals Cleveland Medical Center
- Location
- Cleveland, OH
- Eligibility basics
- Ages 13–18
- RecruitingHealthy volunteers
Examining Neurobiological Mechanisms Underlying the Therapeutic Effect of the Ketogenic Diet in Bipolar Disorder (BD)
University of Pittsburgh
- Location
- Pittsburgh, PA
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
Passive Detection- SARS-CoV-2 (COVID-19) A&M Breathalyzer (PROTECT Kiosk) for Operational Medicine
The Geneva Foundation
- Location
- Fort Sam Houston, TX
- Eligibility basics
- Ages 18–89
- RecruitingHealthy volunteers
Effects of Assisted Robotic vs Laparoscopic Sleeve Gastrectomy
Ricard Corcelles
- Location
- Cleveland, OH
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersPhase 2
Study of Healthy Aging and Physical Function With Elamipretide
David Marcinek
- Location
- Seattle, WA
- Eligibility basics
- Ages 65–80
- RecruitingHealthy volunteers
Ultrasound to Facilitate Stone Passage
University of Washington
- Location
- Seattle, WA + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Furthering Equity Through Infant Feeding EDucation and Support
Endeavor Health
- Location
- Chicago, IL + 2 other US sites
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Immune Status After Being on Call for 24 Hrs
University of Chicago
- Location
- Chicago, IL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
The Neighborhood & Health Study
Texas A&M University
- Location
- Katy, TX + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Evaluation of Non-Invasive Assays for the Detection of Urothelial Cancer
Lahey Clinic
- Location
- Burlington, MA
- 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.