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
Fiber Soda on Postprandial Risk Factors
Ball State University
- Location
- Muncie, IN
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
EXercise-induced PhysioLogical Adaptations In Neurological Disorders
Brigham and Women's Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Feasibility and Acceptability of Remote Saliva Collection
St. Jude Children's Research Hospital
- Location
- Memphis, TN
- Eligibility basics
- Ages 8–18
- RecruitingHealthy volunteers
An Investigation of Pituitary Tumors and Related Hypothalmic Disorders
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2–70
- RecruitingHealthy volunteers
Advanced Functional and Structural MRI Techniques for Neuropharmacological Imaging
National Institute on Drug Abuse (NIDA)
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteers
Normal Values in Hearing and Balance Testing
National Institute on Deafness and Other Communication Disorders (NIDCD)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 5–80
- RecruitingHealthy volunteers
Noninvasive Pre-surgical Evaluation of Patients With Focal Epilepsy and Establishment of a Normative Imaging Database
National Institute of Neurological Disorders and Stroke (NINDS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 8–120
- RecruitingHealthy volunteers
Intraoperative OCT Guidance of Intraocular Surgery II
Duke University
- Location
- Durham, NC
- Eligibility basics
- Ages 1 mo+
- RecruitingHealthy volunteers
The Influence of 3D Printed Prostheses on Neural Activation Patterns
University of Nebraska
- Location
- Omaha, NE
- Eligibility basics
- Ages 3–18
- RecruitingHealthy volunteers
Using Nicotine to Reverse Age-related Auditory Processing Deficits
University of California, Irvine
- Location
- Irvine, CA + 1 other US site
- Eligibility basics
- Ages 18–85
- RecruitingHealthy volunteersPhase 3
Basal Cell Carcinoma Chemoprevention Trial
VA Office of Research and Development
- Location
- San Diego, CA + 5 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
A SMART Evaluation of an Adaptive Web-based AUD Treatment for Service Members and Their Partners
Stanford University
- Location
- Palo Alto, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Accelerated Resolution Therapy for Early Maladaptive Grief
Mayo Clinic
- Location
- Phoenix, AZ + 3 other US sites
- Eligibility basics
- Ages 55+
- RecruitingHealthy volunteersPhase 2
Pharmacogenetic Panel to Prevent Adverse Drug Reactions in Daily Primary Care Practice:
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
The Increase of Lung Capacity Using the Lung Master (Pulmonary Exerciser)
University of Nebraska
- Location
- Omaha, NE
- Eligibility basics
- Ages 19+
- RecruitingHealthy volunteers
Very Brief Exposure: Development of a Novel Exposure Modality for Social Anxiety Disorder in Transition-Age Youth
Children's Hospital Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 16–22
- RecruitingHealthy volunteers
Cannabis Association With Sleep Study
Oregon Health and Science University
- Location
- Portland, OR
- Eligibility basics
- Ages 21–29
- RecruitingHealthy volunteersPhase 4
Enhancing PrEP Uptake and Retention Among Latine TGW and GBM in the South Using Long-Acting Injectable PrEP
Duke University
- Location
- Durham, NC
- Eligibility basics
- Ages 18+ · Men only
- RecruitingHealthy volunteers
Natural History of Dysregulation and Aging of the Immune System in People With Trisomy 21 With and Without Thymectomy
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 1–120
- RecruitingHealthy volunteers
Sleep and Adolescent Vaccine Immunogenicity Pilot/Observational Study
Children's Hospital Medical Center, Cincinnati
- Location
- Cincinnati, OH
- Eligibility basics
- Ages 11–12
- RecruitingHealthy volunteers
Improving Jail Response to the Overdose Crisis: A Hybrid Trial of Jail ECHO to Improve MOUD Implementation and Public Health Outcomes
University of Massachusetts, Worcester
- Location
- Worcester, MA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Improving Student Mental Health Through a Universal Trauma-Informed Intervention
Johns Hopkins Bloomberg School of Public Health
- Location
- Baltimore, MD + 2 other US sites
- Eligibility basics
- Ages 12–15
- RecruitingHealthy volunteers
Immune Regulation in Ulcerative Colitis or Crohn s Disease
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 0 mo–75
- RecruitingHealthy volunteers
Von Hippel-Lindau (VHL): Clinical Manifestations, Diagnosis, Management and Molecular Bases of Inherited Renal and Other Urologic Malignant Disorders
National Cancer Institute (NCI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2+
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.