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 volunteersPhase 4
Glucose Consumption in MS Using [F-18]FDG-PET
Brigham and Women's Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Menstrual Cycle TMS Plasticity Pilot
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 20–40
- RecruitingHealthy volunteers
Investigating Phenotypic, Epigenetic, and NeuroGenetic Traits in Rare and Ultra-rare Neurodevelopmental Disorders (Project PENGUIN)
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Up to age 99
- RecruitingHealthy volunteers
Maternal Autoimmune Disease Research Alliance (MADRA) Registry
Duke University
- Location
- Durham, NC
- Eligibility basics
- Any age listed · Women only
- RecruitingHealthy volunteers
Autonomic Regulation of Blood Pressure in Premature and Early Menopausal Women
University of Minnesota
- Location
- Minneapolis, MN
- Eligibility basics
- Ages 35–70 · Women only
- RecruitingHealthy volunteers
Poke and a Placebo
University of Minnesota
- Location
- Minneapolis, MN
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Oxalate and Citrate
University of Chicago
- Location
- Chicago, IL
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Effects of Whole vs. Nonfat Milk Consumption on Body Composition in Children
Boston Children's Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 9–12
- RecruitingHealthy volunteers
A Study to Evaluate the Impact of Lactobacillus Rhamnosus GG on Proton Pump Inhibitor-Induced Gut Dysbiosis
Mayo Clinic
- Location
- Scottsdale, AZ
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Effects of Physical and Psychosocial Stress on Functional Hypothalamic Amenorrhea in Exercising Women
University of Colorado, Colorado Springs
- Location
- Colorado Springs, CO
- Eligibility basics
- Ages 18–35 · Women only
- RecruitingHealthy volunteers
AI-Assisted Treatment for Residual Speech Sound Disorders
Syracuse University
- Location
- Syracuse, NY
- Eligibility basics
- Ages 9–17
- RecruitingHealthy volunteersPhase 4
Insights in Endocervical Mucus Secretion
Oregon Health and Science University
- Location
- Portland, OR
- Eligibility basics
- Ages 21–40 · Women only
- RecruitingHealthy volunteers
Identifying the Neural Correlates of Mental Simulation in Multi-Step Planning
New York University
- Location
- New York, NY
- Eligibility basics
- Ages 18–64
- RecruitingHealthy volunteers
MRI in BPD Subjects
Children's Hospital Medical Center, Cincinnati
- Location
- Cincinnati, OH
- Eligibility basics
- Up to age 4 mo
- RecruitingHealthy volunteers
A Study to Evaluate Non-significant Risk Operation Magnetic Resonance Imaging for MRI Guided Ablation
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Resting State Changes Following Theta Burst Stimulation
Nicholas Balderston, PhD
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteersPhase 2/Phase 3
Pyridostigmine Efficacy and Safety for Treatment of Ileus After Colorectal Surgery
Stefan Holubar MD MS FACS, FASCRS
- Location
- Cleveland, OH
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Suture Repair vs Mesh Repair for Incisional Hernia
Clayton Petro
- Location
- Gainesville, FL + 3 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 2
Understanding the Clinical Pharmacology of Marijuana-Tobacco Co-administration
University of California, San Francisco
- Location
- San Francisco, CA
- Eligibility basics
- Ages 21–65
- RecruitingHealthy volunteers
Pregnant Women With and Without Crohns Disease to Explore the Role of Plastics and Toxins in Intestinal Inflammation
Icahn School of Medicine at Mount Sinai
- Location
- New York, NY
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
CW2IP2: Imaging and Diagnostic Assessments
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 40–85
- RecruitingHealthy volunteers
VibraCool Device to Reduce Pain and Opioid Use After Anterior Cruciate Ligament Reconstruction (ACLR)
Columbia University
- Location
- New York, NY
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Diagnostic Utility of SGLT1/2 Inhibition to Facilitate Myocardial Glucose Suppression
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Comparison of a Demand Oxygen Delivery
Children's Hospital Medical Center, Cincinnati
- Location
- Cincinnati, OH
- Eligibility basics
- Ages 5–17
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.