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Depression clinical trials in O'Fallon, MO
4 studies for Depression are looking for participants at sites in and around O'Fallon (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 Prospective, Multi-center, Randomized Controlled Blinded Trial Demonstrating the Safety and Effectiveness of VNS Therapy® System as Adjunctive Therapy Versus a No Stimulation Control in Subjects With Treatment-Resistant Depression
Recruiting
- Psychiatric Care and Research, O'Fallon
E-Mindfulness Approaches for Living After Breast Cancer
RecruitingPhase 3
- Mercy Oncology and Hematology - Clayton-Clarkson, Ballwin · 17 mi away
Long-Term Study to Assess the Safety and Tolerability of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)
RecruitingPhase 3
- Neurocrine Clinical Site, O'Fallon
- Neurocrine Clinical Site, Saint Charles · 12 mi away
A Study to Evaluate the Efficacy of AXS-05 Compared to Bupropion in Preventing the Relapse of Depressive Symptoms
RecruitingPhase 4
- Clinical Research Site, Saint Charles · 12 mi away
About Depression
Depression is a serious medical illness. It affects almost 7 percent of U.S. adults. It causes feelings of sadness, hopelessness, and frustration that do not go away. Learn about treatments.
More about Depression on MedlinePlus
Depression trials in other cities
- Boston, MA50 studies
- New York City, NY44 studies
- Chicago, IL26 studies
- Atlanta, GA22 studies
- Pittsburgh, PA22 studies
- Philadelphia, PA21 studies
- Charleston, SC18 studies
- San Diego, CA18 studies
- Houston, TX18 studies
- Los Angeles, CA17 studies
- Washington, DC16 studies
- San Francisco, CA15 studies
Other studies in O'Fallon
- Obesity11 studies
- Overweight10 studies
- Prostate Cancer9 studies
- Major Depressive Disorder8 studies
- Non-Small Cell Lung Cancer8 studies
- Acute Myeloid Leukemia7 studies
- Breast Cancer7 studies
- Lung Cancer7 studies
- Kidney Cancer (Renal Cell Carcinoma)6 studies
- Melanoma5 studies
- Colorectal Cancer5 studies
- Schizophrenia4 studies
From ClinicalTrials.gov, data retrieved Nov 15, 2026. Each study sets its own eligibility; the study team decides who can join.