Healthy volunteers · St. Louis area, MO
Studies for healthy volunteers in St. Louis area, MO
109 recruiting studies have a site in the St. Louis area. This page includes nearby cities such as Saint Louis, Chesterfield, Creve Coeur, Florissant.
109 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingHealthy volunteers
Brain Health in Youth With Normal Weight, Overweight and Obesity at Risk for Type 2 Diabetes (T2D)
Washington University School of Medicine
- Location
- St Louis, MO + 1 other US site
- Eligibility basics
- Ages 12–17
- RecruitingHealthy volunteers
Dose-Response Impact of Glucosyl-Hesperidin (CitraPeak) on Exercise Performance, Blood Flow, Stress, Cognition, and Other Perceptual Indicators
Lindenwood University
- Location
- Saint Charles, MO
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
Target ALS Biomarker Study; Longitudinal Biofluids, Clinical Measures, and At Home Measures
Target ALS Foundation, Inc.
- Location
- St Louis, MO + 9 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Role of the Gut Microbiome in Complex Regional Pain Syndrome
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
MAP for Coaches: Translating Sports Injury Prevention Knowledge to Youth Sport Coaches
St. Louis University
- Location
- St Louis, MO
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Mindfulness in Endometrial and Cervical Cancer
St. Louis University
- Location
- St Louis, MO
- Eligibility basics
- Ages 18–90 · Women only
- RecruitingHealthy volunteers
Studying Health Outcomes After Treatment in Patients With Retinoblastoma
Vanderbilt-Ingram Cancer Center
- Location
- St Louis, MO + 9 other US sites
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteersPhase 4
Characterizing the Human Airway Immune Response to FluMist Vaccination
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
Cerebral Oxygen Metabolism in Children
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 3–50
- RecruitingHealthy volunteersPhase 3
LIMIT Trial - Lidocaine With Intramuscular Injection of Benzathine Penicillin G for Treponema Pallidum Treatment
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
APOL1 Genetic Testing in African Americans
St. Louis University
- Location
- St Louis, MO
- Eligibility basics
- Ages 18–90
- RecruitingHealthy volunteers
TREAT-BE Study (Treatment With Resection and Endoscopic Ablation Techniques for Barrett's Esophagus)
University of Colorado, Denver
- Location
- St Louis, MO + 3 other US sites
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
Enroll -HD: A Prospective Registry Study in a Global Huntington's Disease Cohort
CHDI Foundation, Inc.
- Location
- St Louis, MO + 51 other US sites
- Eligibility basics
- Ages 18+
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.