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Major Depressive Disorder clinical trials in Orange, CA
13 studies for Major Depressive Disorder are looking for participants at sites in and around Orange (within about 30 miles). Open a study to see who can join and how to contact the study team.
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A Study of Seltorexant as Monotherapy in Adults and Elderly Participants With Major Depressive Disorder
RecruitingPhase 3
- NRC Research Institute, Orange
A Study to Evaluate TNX-102 SL Monotherapy Versus Placebo in Participants With Major Depressive Disorder (MDD)
RecruitingPhase 2
- Nrc Research Institute, Orange
A Study of a Deuterated Psilocin Analog (CYB003) in Humans With Major Depressive Disorder
RecruitingPhase 3
- ATP Clinical Research, Orange
- NRC Research Institute, Orange
Evaluation of Efficacy and Safety of Milsaperidone as Adjunctive Therapy in Patients With Major Depressive Disorder
RecruitingPhase 3
- Vanda Investigational Site, Orange
A Study to Evaluate the Effectiveness of Valbenazine in Adult Participants With Tardive Dyskinesia (TD) Who Remain Symptomatic While Receiving or After Stopping a Vesicular Monoamine Transporter 2 (VMAT2) Inhibitor
RecruitingPhase 4
- Neurocrine Clinical Site, Orange
ACP-211 Monotherapy for Major Depressive Disorder With Inadequate Antidepressant Response
RecruitingPhase 2
- PNS Clinical Research LLC dba ATP Clinical Research, Orange
A Phase 3 Trial of DT120 for Major Depressive Disorder (Ascend)
RecruitingPhase 3
- ATP Clinical Research Orange County, Orange
A Study of Brenipatide in Adult Participants With Major Depressive Disorder
RecruitingPhase 3
- ATP Clinical Research, Orange
A Randomized Study of Azetukalner Versus Placebo in Major Depressive Disorder
RecruitingPhase 3
- Atp Clinical Research, Orange
- Nrc Research Institute, Orange
A Study to Evaluate the Maintenance Effect of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)
RecruitingPhase 3
- Neurocrine Clinical Site, Orange
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, Orange
Study of ABX-002 for the Adjunctive Treatment of Major Depressive Disorder (AMPLIFY)
RecruitingPhase 2
- Autobahn Site #152, Orange
Study to Assess the Efficacy and Safety of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)
RecruitingPhase 3
- Neurocrine Clinical Site, Orange
Major Depressive Disorder trials in other cities
- New York City, NY37 studies
- Boston, MA31 studies
- Atlanta, GA25 studies
- Philadelphia, PA23 studies
- Orlando, FL19 studies
- Miami, FL18 studies
- Chicago, IL17 studies
- Tampa, FL17 studies
- Houston, TX16 studies
- San Diego, CA16 studies
- Little Rock, AR14 studies
- Austin, TX13 studies
Other studies in Orange
- Non-Small Cell Lung Cancer25 studies
- Metastatic Cancer20 studies
- Colorectal Cancer16 studies
- Ovarian Cancer16 studies
- Pancreatic Cancer15 studies
- Breast Cancer14 studies
- Lung Cancer14 studies
- Prostate Cancer14 studies
- Liver Cancer (Hepatocellular Carcinoma)14 studies
- Melanoma14 studies
- Acute Myeloid Leukemia13 studies
- Cancer (all types)13 studies
From ClinicalTrials.gov, data retrieved Oct 5, 2026. Each study sets its own eligibility; the study team decides who can join.