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
Healthy Aging in People With Epilepsy Program
Anny Reyes
- Location
- Cleveland, OH
- Eligibility basics
- Ages 55–90
- RecruitingHealthy volunteersPhase 4
E-cigarette Cessation in Adults Who Co-use Cannabis
Medical University of South Carolina
- Location
- Charleston, SC + 2 other US sites
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
Process-Based Approach Case Series For Anxiety Problems
University of Alabama at Birmingham
- Location
- Birmingham, AL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Psychosocial Burden and Quality of Life in Caretakers of Hepatobiliary Cancer Patients
Methodist Health System
- Location
- Richardson, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Evaluation of a Powered Ankle Prosthesis Capable of Bidirectional Control Via Neural Recording and Cutaneous Stimulation in Free-Space and Walking Tasks
Massachusetts Institute of Technology
- Location
- Cambridge, MA
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Hereditary Risk Factors for Thyroid Cancer
Dana-Farber Cancer Institute
- Location
- Boston, MA
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Acoustic and Electrical Stimulation for the Treatment of Tinnitus
University of California, Irvine
- Location
- Irvine, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Platelet Expression of FcγRIIa and Arterial Hemodynamics to Predict Recurrent Stroke in Intracranial Atherosclerosis
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 30+
- RecruitingHealthy volunteers
Patients With and Without Phonotrauma
University of Texas Southwestern Medical Center
- Location
- Dallas, TX
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
NIEHS Repository of Stored Biological Samples for Future Use
National Institute of Environmental Health Sciences (NIEHS)
- Location
- Research Triangle Park, NC
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
Feasibility and Acceptability of Mindful Self-Compassion Among Transgender and Nonbinary Young Adults
University of Rhode Island
- Location
- Providence, RI
- Eligibility basics
- Ages 18–29
- RecruitingHealthy volunteers
Polyphenols and Cognitive Decline
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 50+
- RecruitingHealthy volunteers
Wearable Evaluation of Ambulatory Readings for Blood Pressure
Stephen Juraschek
- Location
- Boston, MA
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
Neural Mechanisms of Interpersonal Expectations on Negative Affect
Trustees of Dartmouth College
- Location
- Hanover, NH
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Exercise Adherence and Cognitive Decline: Phase 2
University of Colorado, Boulder
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 45–65
- RecruitingHealthy volunteers
Catalyzing Cigarette Smoking Cessation Through Harm Reduction Sampling Among People Unmotivated to Quit
Abramson Cancer Center at Penn Medicine
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteers
Evaluating the Validity and Feasibility of a Smartwatch-based Eating Detection System to Passively and Automatically Detect Eating Events in Child-parent Dyads
Pennington Biomedical Research Center
- Location
- Baton Rouge, LA
- Eligibility basics
- Ages 8–12
- RecruitingHealthy volunteers
Assessing MB-Spirit for Psychological Well-being
Sara W Lazar
- Location
- Boston, MA
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
Imaging Phosphodiesterase 4B (PDE4B) in People With Psychiatric Disorders With Positron Emission Tomography (PET) and the Radiotracer [18F]PF974
Yale University
- Location
- New Haven, CT
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Efficacy of Center-based Childcare to Mitigate Unhealthy Weight Gain in Preschoolers From Low-income Households During the Summer
University of South Carolina
- Location
- Columbia, SC
- Eligibility basics
- Ages 3–5
- RecruitingHealthy volunteers
The SEAS Study: Sensory Engagement and Activation During Noninvasive Stimulation
University of Minnesota
- Location
- Minneapolis, MN + 2 other US sites
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Trial in HPV Prevention for the U.S. Vietnamese Community
Northwestern University
- Location
- Chicago, IL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Refitting Satisfied INFUSE One-Day Multifocal Wearers to DAILIES TOTAL1 Multifocal Contact Lenses
Gordon Schanzlin New Vision
- Location
- La Jolla, CA
- Eligibility basics
- Ages 40+
- RecruitingHealthy volunteers
Longitudinal Measurements of Visual Diet in Children
State University of New York College of Optometry
- Location
- New York, NY
- Eligibility basics
- Ages 7–12
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.