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Post-COVID Conditions (Long COVID) clinical trials in St. Louis, MO
4 studies for Post-COVID Conditions (Long COVID) are looking for participants at sites in and around St. Louis (within about 30 miles). Open a study to see who can join and how to contact the study team.
Recruiting for a study here? Feature it at the top of this page — $99 for 30 days →
A Safety and Immunogenicity Trial of OCU500, ChAd36 Vector Encoding SARS-CoV-2 Spike Vaccine Via Intranasal and Inhalational Routes in Previously Vaccinated Adults
RecruitingPhase 1Healthy volunteers welcome
- Saint Louis University Center for Vaccine Development, St Louis
Efficacy and Safety of Tozorakimab in Patients Hospitalised for Viral Lung Infection Requiring Supplemental Oxygen
RecruitingPhase 3
- Research Site, St Louis
Dissecting Human Immune Responses to Infection With Influenza or SARS-CoV-2
RecruitingObservational studyHealthy volunteers welcome
- Washington University in Saint Louis Department of Emergency Medicine, Emergency Care Research Core, St Louis
EPIC-Peds: A Study to Learn About the Study Medicine Called PF-07321332 (Nirmatrelvir)/Ritonavir in Patients Under 18 Years of Age With COVID-19 That Are Not Hospitalized But Are at Risk for Severe Disease
RecruitingPhase 3
- St. Louis Children's Hospital, St Louis
- Washington University School of Medicine, St Louis
About Post-COVID Conditions (Long COVID)
Anyone who had COVID-19 can have ongoing symptoms. Learn about post-COVID conditions (long COVID), including symptoms, diagnosis, treatments, and prevention.
More about Post-COVID Conditions (Long COVID) on MedlinePlus
Post-COVID Conditions (Long COVID) trials in other cities
- New York City, NY15 studies
- Houston, TX13 studies
- Boston, MA13 studies
- Baltimore, MD12 studies
- Chicago, IL11 studies
- Washington, DC10 studies
- San Francisco, CA8 studies
- Durham, NC8 studies
- Atlanta, GA8 studies
- San Diego, CA7 studies
- Los Angeles, CA6 studies
- Pittsburgh, PA6 studies
Other studies in St. Louis
- Non-Small Cell Lung Cancer73 studies
- Breast Cancer64 studies
- Metastatic Cancer54 studies
- Colorectal Cancer50 studies
- Cancer (all types)46 studies
- Prostate Cancer46 studies
- Lung Cancer39 studies
- Ovarian Cancer38 studies
- Pancreatic Cancer33 studies
- Endometrial Cancer29 studies
- Head and Neck Squamous Cell Carcinoma28 studies
- Heart Failure26 studies
From ClinicalTrials.gov, data retrieved Oct 6, 2026. Each study sets its own eligibility; the study team decides who can join.