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
Screening, Evaluation and Assessment (SEA) Protocol at the NIDA IRP
National Institute on Drug Abuse (NIDA)
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–99
- RecruitingHealthy volunteers
ASSESS ALL ALS Study
St. Joseph's Hospital and Medical Center, Phoenix
- Location
- Birmingham, AL + 35 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
PREVENT ALL ALS Study
St. Joseph's Hospital and Medical Center, Phoenix
- Location
- Birmingham, AL + 30 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
EEG-Guided Binaural Beat Audio to Reduce Performance-Related Stress and Improve Cognition
Texas Tech University Health Sciences Center
- Location
- Lubbock, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Safer Drinking Spaces Study
RTI International
- Location
- Little Rock, AR + 2 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
VisionApp - Ghosting
Indiana University
- Location
- Bloomington, IN
- Eligibility basics
- Ages 8+
- RecruitingHealthy volunteers
Advancing Skills Through Consultation, Education, and Novel Technologies
The University of Texas Health Science Center at San Antonio
- Location
- San Antonio, TX
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Human-Created vs AI-generated Art on Immediate Psychological Responses
Stanford University
- Location
- Stanford, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Effects of Flavonoid Foods on Carbonyl Stress
North Carolina Agriculture & Technical State University
- Location
- Kannapolis, NC
- Eligibility basics
- Ages 25–70
- RecruitingHealthy volunteers
Pharmacokinetic (PK) Study of Phytochemicals in Whole Grains (WGs)- Corn
North Carolina Agriculture & Technical State University
- Location
- Kannapolis, NC
- Eligibility basics
- Ages 25–70
- RecruitingHealthy volunteers
Genetic of Skeletal Muscle Insulin Resistance
The University of Texas Health Science Center at San Antonio
- Location
- San Antonio, TX
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Neighborhood Connect
University of Massachusetts, Worcester
- Location
- Worcester, MA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Sleep Apnea in Elderly
VA Office of Research and Development
- Location
- Detroit, MI
- Eligibility basics
- Ages 60–89
- RecruitingHealthy volunteers
Leucine Enriched Essential Amino Acid Mixture to Reverse Muscle Loss in Cirrhosis
The Cleveland Clinic
- Location
- Cleveland, OH
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Coronary Atherosclerosis T1-Weighted Characterization (CATCH)
Cedars-Sinai Medical Center
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Understanding Mechanisms of Normal and Disordered Defecation
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteers
Pharmacokinetics, Pharmacodynamics, and Safety Profile of Understudied Drugs Administered to Children Per Standard of Care (POPS)
Duke University
- Location
- Palo Alto, CA + 3 other US sites
- Eligibility basics
- Ages 0 mo–20
- RecruitingHealthy volunteersPhase 4
Ultrasound Therapy In Cardiac Amyloidosis
Brigham and Women's Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 18–90
- RecruitingHealthy volunteers
Registry of Asthma Characterization and Recruitment 3 (RACR3)
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Aurora, CO + 4 other US sites
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Improving TRansitions ANd OutcomeS for Heart FailurE Patients in Home Health CaRe (I-TRANSFER-HF)
Weill Medical College of Cornell University
- Location
- New York, NY + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Induction of Cross-protective Antibodies for Serogroup 33 by Pneumococcal Conjugate Vaccines
University of Alabama at Birmingham
- Location
- Birmingham, AL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Mitigating the Disinhibiting Effects of Alcohol With Transcranial Magnetic Stimulation
Michael J. Wesley, PhD
- Location
- Lexington, KY
- Eligibility basics
- Ages 21–29
- RecruitingHealthy volunteers
EpiFaith Resident Learning Curve Trial
Brigham and Women's Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
High Resolution Pharyngeal Manometry (HRPM) Biofeedback
NYU Langone Health
- Location
- New York, NY
- Eligibility basics
- Ages 18–40
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.