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
Pathways Mediating Impaired Postural Control in Parkinson's Disease
University of Minnesota
- Location
- Minneapolis, MN
- Eligibility basics
- Ages 45–80
- RecruitingHealthy volunteers
Adding Polyphenol-rich Pulses to Daily Diet Improves Skin Health by Reshaping the Skin Microbiome
University of Florida
- Location
- Gainesville, FL
- Eligibility basics
- Ages 45–65 · Women only
- RecruitingHealthy volunteersPhase 4
Disentangling the Effects of Daily Stress, Sleep, and Sex Hormones on Accelerated Vascular Aging in Midlife Women
University of Delaware
- Location
- Newark, DE
- Eligibility basics
- Ages 40–55 · Women only
- RecruitingHealthy volunteers
Burn Pit Exposure in Veterans: A Cancer Screening Pilot Study at the Inova Saville Cancer Screening & Prevention Center
Inova Health Care Services
- Location
- Fairfax, VA
- Eligibility basics
- Ages 35–85
- RecruitingHealthy volunteers
Effects of Exogenous Ketones on Cognitive Function in Older Adults With Prediabetes?
University of Alabama at Birmingham
- Location
- Birmingham, AL + 1 other US site
- Eligibility basics
- Ages 60–75
- RecruitingHealthy volunteers
Financial Counseling for Dementia Family Caregivers in Early and Middle Adulthood
University of Utah
- Location
- Salt Lake City, UT
- Eligibility basics
- Ages 25–55
- RecruitingHealthy volunteers
Cognitive and Immunologic Profiles of Patients With Olfactory Dysfunction After Smell Training
The Cleveland Clinic
- Location
- Cleveland, OH
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Magnetic Resonance Imaging of Breast Cancer
Stanford University
- Location
- Stanford, CA
- Eligibility basics
- Ages 21+ · Women only
- RecruitingHealthy volunteersPhase 4
Treatment of Sleep Apnea in Patients With Cervical Spinal Cord Injury
John D. Dingell VA Medical Center
- Location
- Detroit, MI
- Eligibility basics
- Ages 18–89
- RecruitingHealthy volunteersPhase 4
CT TAVR Abdomen Study
University of Maryland, Baltimore
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–88
- RecruitingHealthy volunteers
Protocol CAUSE-03 / CHEETAH
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Aurora, CO + 7 other US sites
- Eligibility basics
- Ages 6–17
- RecruitingHealthy volunteers
Changes in Microbial Status From Dentate, Edentulous and After Dental Implant Placement
Case Western Reserve University
- Location
- Cleveland, OH
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteers
Project for Multi-Omics-Based Early Detection of Hepatocellular Carcinoma (PROMETHEA Study)
City of Hope Medical Center
- Location
- Duarte, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
The Bottle Optimization Testing Tiny Little Eaters Study
University of Michigan
- Location
- Ann Arbor, MI
- Eligibility basics
- Ages 4 mo+
- RecruitingHealthy volunteers
Cannabis Observations on Brain Waves, Retrieval, and Attention: Experiment 4
L. Cinnamon Bidwell
- Location
- Boulder, CO
- Eligibility basics
- Ages 21–40
- RecruitingHealthy volunteers
Disseminating Effective Sexual Health Programs in Schools Using iCHAMPSS
The University of Texas Health Science Center, Houston
- Location
- Houston, TX
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Improving Comprehensive Care of Cancer Patients
Baylor College of Medicine
- Location
- Houston, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Blossom® Smart Expander Device for Tissue Expander/Implant-Based Breast Reconstruction
Stanford University
- Location
- Palo Alto, CA
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Oral Nicotine Pouches Versus Nicotine Replacement Therapy to Reduce Cigarette Use for Smokers in Rural Appalachia
Ohio State University Comprehensive Cancer Center
- Location
- Columbus, OH
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteers
Cervical Preparation for Same-Day Dilation & Evacuation
Boston Medical Center
- Location
- Boston, MA
- Eligibility basics
- Ages 16+ · Women only
- RecruitingHealthy volunteers
Optimizing Health Related Quality of Life Measurement in Adolescent and Young Adult Oncology
Wake Forest University Health Sciences
- Location
- Winston-Salem, NC
- Eligibility basics
- Ages 15+
- RecruitingHealthy volunteers
Integrating Free-choice Marketplace, dieTitian coacHing, cultuRally Tailored messagIng to improVE Blood Pressure
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21–70
- RecruitingHealthy volunteers
Cranberry Polyphenols and Stress Resilience During Multitasking in Healthy Adults
University of Florida
- Location
- Gainesville, FL
- Eligibility basics
- Ages 30–55
- RecruitingHealthy volunteers
Harvesting Health: Advancing Nutrition and Wellness for Moms and Babies
Texas A&M University
- Location
- College Station, TX + 2 other US sites
- 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.