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
Delivering HOPE (Helping Women Optimize Prenatal Equity)
University of Arkansas
- Location
- Corning, AR + 6 other US sites
- Eligibility basics
- Ages 16–44 · Women only
- RecruitingHealthy volunteers
Reducing Crises and Suicide Within the Idaho Army National Guard
University of Rochester
- Location
- Boise, ID
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
The Effect of Spinal Cord Stimulators on Restless Leg Syndrome
University of Alabama at Birmingham
- Location
- Birmingham, AL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Early Introduction and Sustained Ingestion (EISI) Using Two Educational Opportunities in Infants
Stanford University
- Location
- Stanford, CA
- Eligibility basics
- Ages 4 mo–11 mo
- RecruitingHealthy volunteers
The Effect of Respiratory Muscle Training on Cognitive Performance
Indiana University
- Location
- Bloomington, IN
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
Thirst for Knowledge
Duquesne University
- Location
- Cornwall, PA
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteers
Gut Flora Metabolite Reduction After Dietary Intervention (GRADY)
The Cleveland Clinic
- Location
- Cleveland, OH
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 2
The Role of Sirolimus in Preventing Functional Decline in Older Adults
Irina Timofte
- Location
- Dallas, TX
- Eligibility basics
- Ages 65–80
- RecruitingHealthy volunteers
Effects of Stereotype Threat on Impulsivity and Its Relation to Alcohol Use in African Americans: An fMRI Study
Icahn School of Medicine at Mount Sinai
- Location
- New York, NY
- Eligibility basics
- Ages 21–35
- RecruitingHealthy volunteers
Modified Pivotal Response Treatment for Insistence on Sameness in Autistic Youth
Stanford University
- Location
- Stanford, CA
- Eligibility basics
- Ages 4–17
- RecruitingHealthy volunteers
Cardiovascular and Metabolic Sciences Biorepository
The Cleveland Clinic
- Location
- Cleveland, OH
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Testing ANSOS for Efficacy in Multi-Tribal Urban Communities
Lehigh University
- Location
- Bethlehem, PA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Characterization of Fetal Lung With Quantitative Ultrasound
University of Wisconsin, Madison
- Location
- Madison, WI
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteers
Better Breaks: Strength Breaks vs Walk Breaks for Sedentary Behavior Breaks
Stanford University
- Location
- Palo Alto, CA
- Eligibility basics
- Ages 30+
- RecruitingHealthy volunteers
Contingency Management Plus Deep Transcranial Magnetic Stimulation for the Treatment of Cocaine Use Disorder
The University of Texas Health Science Center, Houston
- Location
- Houston, TX
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Teen Helpline Motivational Interviewing Study
San Diego State University
- Location
- San Diego, CA
- Eligibility basics
- Ages 13+
- RecruitingHealthy volunteers
Advancing Cancer Control Engaged Research Through Transformative Solutions (ACCERT) Social Determinants of Health (SDoH) Navigation Program
Northwestern University
- Location
- Chicago, IL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Defining the Basis of Fibromuscular Dysplasia (FMD)
Icahn School of Medicine at Mount Sinai
- Location
- New York, NY
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
COVID-19 Pandemic Impact on Alcohol (PIA) - A Natural History Study
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
Survivorship Plan HEalth REcord (SPHERE) Implementation Trial
Indiana University
- Location
- Indianapolis, IN
- Eligibility basics
- Ages 18–99
- RecruitingHealthy volunteers
Circulating Biomarkers in the Development of Type 1 Diabetes
City of Hope Medical Center
- Location
- Duarte, CA
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Ketone Conferred Resiliency Against Sleep Restriction With Nutritional Intervention.
Ohio State University
- Location
- Columbus, OH
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
A Study of Opportunistic Salpingectomy to Prevent Ovarian Cancer
Memorial Sloan Kettering Cancer Center
- Location
- Baltimore, MD + 8 other US sites
- Eligibility basics
- Ages 45+ · Women only
- RecruitingHealthy volunteers
Breastmilk in Response to a Bout of Exercise
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18–45 · Women only
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.