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Depression clinical trials in O'Fallon, MO
5 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.
A Randomized Study of Azetukalner Versus Placebo in Major Depressive Disorder (X-NOVA3)
RecruitingPhase 3
- Psychiatric Care and Research Center, O'Fallon
- St. Charles Psychiatric Associates - Midwest Research Group, Saint Charles · 12 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 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
A Study to Assess the Efficacy, Safety and Tolerability of VLS-01 Buccal Film, Compared to Placebo in Patients With Treatment Resistant Depression (ELUMINA)
RecruitingPhase 2
- Midwest Research Group, 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, MA51 studies
- New York City, NY46 studies
- Philadelphia, PA25 studies
- Chicago, IL23 studies
- Atlanta, GA23 studies
- Pittsburgh, PA22 studies
- San Diego, CA21 studies
- Charleston, SC19 studies
- Houston, TX18 studies
- Orlando, FL17 studies
- Los Angeles, CA17 studies
- Miami, FL16 studies
Other studies in O'Fallon
- Obesity12 studies
- Overweight10 studies
- Major Depressive Disorder9 studies
- Prostate Cancer9 studies
- Non-Small Cell Lung Cancer8 studies
- Lung Cancer7 studies
- Breast Cancer6 studies
- Acute Myeloid Leukemia6 studies
- Kidney Cancer (Renal Cell Carcinoma)5 studies
- Colorectal Cancer5 studies
- Melanoma5 studies
- Chronic Lymphocytic Leukemia4 studies
From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.