Location · St. Louis, MO
Clinical trials in St. Louis, MO
424 recruiting studies have a site in the St. Louis area, and 110 of them accept healthy volunteers. The area includes Saint Louis, Chesterfield, Creve Coeur, Florissant, Kirkwood, Ballwin and nearby cities.
424 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingHealthy volunteersPhase 1
A Clinical Study of Novel Pneumococcal Vaccine V118C in Children (V118C-002)
Merck Sharp & Dohme LLC
- Location
- Madera, CA + 14 other US sites
- Eligibility basics
- Ages 2 mo–1
- RecruitingHealthy volunteersPhase 1
A Clinical Trial Investigating the Safety and Biological Activity of the Antibody BNT351 in Adults Living Without and With HIV
BioNTech SE
- Location
- Chicago, IL + 3 other US sites
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 1
A Study of Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of SR604 in Two Participants Groups (Part A: Healthy Participants, and Part B: Participants With Hemophilia A or Hemophilia B or Factor VII…
Equilibra Bioscience LLC
- Location
- Los Angeles, CA + 6 other US sites
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteersPhase 1
A Safety and Immunogenicity Trial of OCU500, ChAd36 Vector Encoding SARS-CoV-2 Spike Vaccine Via Intranasal and Inhalational Routes in Previously Vaccinated Adults
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Decatur, GA + 4 other US sites
- Eligibility basics
- Ages 18–64
- RecruitingHealthy volunteersEarly Phase 1
PET Imaging of Natriuretic Peptide Receptor C (NPR-C) in Carotid Atherosclerosis With 64Cu-NODAGA-CANF (Volunteer - Dosimetry Study)
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Light Therapy for Obsessive-compulsive Disorder (OCD)
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 17–35
- RecruitingHealthy volunteersEarly Phase 1
PET Imaging CCR2 in Lung Inflammation
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteersPhase 1
NMDA Receptor Antagonist Nitrous Oxide Targets Affective Brain Circuits
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersEarly Phase 1
Study of Biodistribution, Metabolism, Excretion and Brain Uptake11C-M503
University of Pennsylvania
- Location
- New Haven, CT + 2 other US sites
- Eligibility basics
- Ages 40–85
- RecruitingHealthy volunteersEarly Phase 1
PET Imaging of MMP Activation in AAA: Clinical Component
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersOvernight stay mentioned
Digital vs. Speculum Exams for PPROM
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Any age listed · Women only
- RecruitingHealthy volunteersPhase 1
PET Detection of CCR2 in Human Atherosclerosis
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 18–89
- RecruitingHealthy volunteersPhase 3
A Study of Aleniglipron in Adults With Obesity or Overweight and Type 2 Diabetes Mellitus (ACCOMPLISH-2)
Gasherbrum Bio, Inc., a wholly owned subsidiary of Structure Therapeutics
- Location
- Birmingham, AL + 55 other US sites
- Eligibility basics
- Ages 18–79
- RecruitingHealthy volunteers
Galleri® in the Medicare Population.
GRAIL, Inc.
- Location
- Fort Smith, AR + 70 other US sites
- Eligibility basics
- Ages 50+
- RecruitingHealthy volunteersPhase 3
A Study to Assess the Safety, Tolerability, and Immunogenicity of 3 Lots of a Multivalent Pneumococcal Conjugate Vaccine Administered to Adults
Pfizer
- Location
- Birmingham, AL + 36 other US sites
- Eligibility basics
- Ages 18–49
- RecruitingHealthy volunteersPhase 3
A Study to Learn About a Clostridioides Difficile Vaccine in People 65 Years of Age and Older
Pfizer
- Location
- Athens, AL + 138 other US sites
- Eligibility basics
- Ages 65+
- RecruitingHealthy volunteers
BoxX-NoAF Clinical Trial
AtriCure, Inc.
- Location
- Scottsdale, AZ + 30 other US sites
- Eligibility basics
- Ages 65+
- RecruitingHealthy volunteers
Observational Study of Decentralized Urine Optical Interaction Patterns Associated With Environmental Microplastic and Nanoplastic Exposure
Ecotera Health LLC
- Location
- Birmingham, AL + 50 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Comparison of ACUVUE® OASYS MAX 1-Day Multifocal and DAILIES® AquaComfort Plus® Multifocal
Johnson & Johnson Vision Care, Inc.
- Location
- Roswell, GA + 9 other US sites
- Eligibility basics
- Ages 40–70
- RecruitingHealthy volunteers
A Randomized Comparison of Stage-Based Care Versus Risk Factor-Based Care for Prevention of Cardiovascular Events
Cleerly, Inc.
- Location
- Chandler, AZ + 121 other US sites
- Eligibility basics
- Ages 55+
- RecruitingHealthy volunteersPhase 3
A Study on the Efficacy of a Vaccine Against Influenza in Adults ≥65 Years of Age
GlaxoSmithKline
- Location
- Anniston, AL + 130 other US sites
- Eligibility basics
- Ages 65+
- RecruitingHealthy volunteers
Motiva Implants® Post-Approval Study
Motiva USA LLC
- Location
- Beverly Hills, CA + 32 other US sites
- Eligibility basics
- Ages 22+ · Women only
- RecruitingHealthy volunteers
A Study to Determine the Effects of ENDS Flavor Availability on Abstinence Within Smokers
RAI Services Company
- Location
- Maitland, FL + 6 other US sites
- Eligibility basics
- Ages 21–65
- RecruitingHealthy volunteers
Acellular Dermal Matrix Investigation in Breast Reconstruction
RTI Surgical
- Location
- Little Rock, AR + 11 other US sites
- Eligibility basics
- Ages 22+ · Women only