Depression clinical trials in California
Mental health
Also: Texas
160 trials are recruiting in California, according to ClinicalTrials.gov.
Showing 100 of 160, newest first. Checked against the registry on 23 October 2026. Listing a trial here is not a recommendation; taking part is voluntary and each study team decides who is eligible.
Study of ALTO-300 in MDD
Ages 18 Years to 70 Years · 38 sites · in California: Bellflower, Glendale, Lafayette, Los Angeles, Mather, Mission Viejo · Alto Neuroscience
Details and how to check if you qualify · NCT05922878 on ClinicalTrials.gov
A Study to Evaluate the Maintenance Effect of Osavampator as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)
Ages 18 Years to no maximum · 55 sites · in California: Oceanside, Orange, San Jose · Neurocrine Biosciences
Details and how to check if you qualify · NCT07196501 on ClinicalTrials.gov
Mindfulness Engaged Neurostimulation for Depression (MEND II)
Ages 18 Years to 65 Years · 1 site · in California: San Diego · University of California, San Diego
Details and how to check if you qualify · NCT07512284 on ClinicalTrials.gov
A Study to Evaluate the Effectiveness of DT-101 in Patients With Depression
Ages 18 Years to 75 Years · 40 sites · in California: Oceanside, San Diego, Torrance · Draig Therapeutics Ltd
Details and how to check if you qualify · NCT07300969 on ClinicalTrials.gov
A Mobile Health Intervention to Improve Psychosocial Functioning in Veterans With Posttraumatic Stress Disorder and Depression Symptoms
Ages 18 Years to no maximum · 1 site · in California: Palo Alto · VA Office of Research and Development
A Phase I/II Study of PDC-1421 for Treating Depression in Cancer Patients
Ages 21 Years to 85 Years · 1 site · in California: Los Angeles · BioLite, Inc.
Group PACBT for Depression
Ages 21 Years to 60 Years · 1 site · in California: Los Angeles · University of California, Los Angeles
Multi-site Feasibility of an Integrated Treatment for the Biology and Experience of Depression: The MULTIBED Study
Ages 18 Years to no maximum · 3 sites · in California: San Francisco · University of California, San Francisco
Feasibility, Acceptability, and Preliminary Effectiveness of Cognitive Behavioral Therapy for Depression in Autistic Youth in Clinical Settings
Ages 11 Years to 17 Years · 1 site · in California: Los Angeles · Children's Hospital Los Angeles
Sham-Controlled Rapid-Acting Neuromodulation for Depression
Ages 18 Years to 65 Years · 1 site · in California: Sacramento · University of California, Davis
Development of Low-Intensity Focused Ultrasound for Post Traumatic Brain Injury Depression
Ages 22 Years to 55 Years · 1 site · in California: Stanford · Stanford University
A Study to Evaluate BMS-986511 in Adults With Major Depressive Disorder
Ages 18 Years to 65 Years · 27 sites · in California: Garden Grove, Glendale, Lemon Grove, Oakland, Upland · Bristol-Myers Squibb
Morphine or Ketamine for Analgesia
Ages 6 Years to 17 Years · 8 sites · in California: Los Angeles, Sacramento · Columbia University
Home-Based Randomized Trial of Spaced Transcranial Direct Current Stimulation for Treatment-Resistant Depression
Ages 18 Years to 70 Years · 1 site · in California: San Diego · University of California, San Diego
Sensory Synchronized Imaging and Neuromodulation
Ages 18 Years to no maximum · 1 site · in California: Palo Alto · VA Office of Research and Development
Focused Ultrasound for Behavioral Health
Ages 22 Years to 80 Years · 1 site · in California: San Francisco · Attune Neurosciences Inc
SAINT® Therapy for Memory Problems in Older Adults With Treatment-Resistant Depression
Ages 65 Years to no maximum · 1 site · in California: Costa Mesa · BrainHealth Solutions, Inc.
Brexanolone Lifting Outcomes Of Moms
Ages 15 Years to 45 Years · 16 sites · in California: Canoga Park, Walnut Creek · Lipocine Inc.
An Online Intuitive Eating Program for Pregnant Women With Obesity to Support Well-Being
Ages 18 Years to no maximum · 2 sites · in California: San Diego, San Diego · San Diego State University
Supported Online Self-Help for Veterans With Depression in Primary Care
Ages 18 Years to no maximum · 2 sites · in California: San Diego, West Los Angeles · University of California, Los Angeles
A Study of Brenipatide (LY3537031) in Adult Participants With Major Depressive Disorder
Ages 18 Years to 75 Years · 170 sites · in California: Irvine, Long Beach, Oakland, Valley Village · Eli Lilly and Company
Enhancing Veteran-Clinical Collaboration in VA PRRCs
Ages 18 Years to no maximum · 3 sites · in California: San Diego, West Los Angeles · VA Office of Research and Development
A Study of Esketamine Nasal Spray Versus Placebo Spray in Adult Participants With Treatment-resistant Depression
Ages 18 Years to no maximum · 22 sites · in California: Redlands, San Diego · Janssen Research & Development, LLC
Supporting Mental Health and Reducing Care Stress in Caregivers of Persons With Cardiovascular Disease
Ages 18 Years to no maximum · 1 site · in California: Sacramento · University of California, Davis
Debriefing Consult for Psychiatric Symptoms After Severe Maternal Morbidity
Ages 18 Years to no maximum · 1 site · in California: Los Angeles · Cedars-Sinai Medical Center
Study of Psilocybin Under Anesthesia Controlled by EEG
Ages 25 Years to 65 Years · 1 site · in California: Stanford · Stanford University
Neuronavigated aiTBS for TRD
Ages 18 Years to 65 Years · 3 sites · in California: San Diego · University of Texas Southwestern Medical Center
A Study to Evaluate TNX-102 SL Monotherapy Versus Placebo in Participants With Major Depressive Disorder (MDD)
Ages 18 Years to no maximum · 26 sites · in California: Buena Park, Chino, Lemon Grove, Orange, San Diego, Walnut Creek · Tonix Pharmaceuticals, Inc.
Phase II: Engagement and Clinical Impact of the Teleo Virtual Therapy Platform in Clinical Settings
Ages 5 Years to 14 Years · 2 sites · in California: Monterey, Stanford · Stanford University
Calming Minds Study
Ages 18 Years to no maximum · 1 site · in California: Imperial · University of California, Los Angeles
A Randomized Pilot rTMS Trial for Knee Arthritis Pain and Depression
Ages 50 Years to 95 Years · 1 site · in California: Los Angeles · University of California, Los Angeles
Early Brainwave Biomarkers for Personalized Neuromodulation in Treatment-resistant Depression
Ages 18 Years to 65 Years · 1 site · in California: Stanford · Stanford University
Be Well at Work-Plus: A Depression and Physical Activity Intervention for Hospital Service Workers (Aim 3)
Ages 18 Years to no maximum · 1 site · in California: San Diego · San Diego State University
CREST: Samphire Guided Care Program on Wellbeing, Work Productivity, and Quality of Life
Ages 18 Years to 65 Years · 1 site · in California: San Francisco · Samphire Group, Inc.
Be Well at Work-Plus: A Depression and Physical Activity Intervention for Hospital Service Workers (Aim 2)
Ages 18 Years to no maximum · 1 site · in California: San Diego · San Diego State University
A Study to Evaluate the Effectiveness of DT-101 as an Adjunctive Treatment in Patients With Depression
Ages 18 Years to 75 Years · 23 sites · in California: Bellflower, Costa Mesa, Lafayette · Draig Therapeutics Ltd
A Phase 3 Trial of DT120 for Major Depressive Disorder (Ascend)
Ages 18 Years to 74 Years · 28 sites · in California: Orange, San Diego, San Francisco, Santa Monica · Definium Therapeutics US, Inc.
Pupillometry in Identifying Risk of Postoperative Opioid-induced Respiratory Depression in Children Undergoing Tonsillectomy
Ages 3 Years to 17 Years · 2 sites · in California: San Francisco · NeurOptics Inc
Health And Response: Digital Markers for Outcomes in Perinatal Depression Treatment Study
Ages 18 Years to no maximum · 1 site · in California: Los Angeles · University of California, Los Angeles
ALTO-207 in Adults With Treatment-resistant Depression (TRD)
Ages 18 Years to 75 Years · 48 sites · in California: Chino, Oakland, Oceanside, Palo Alto, Sacramento, San Diego · Alto Neuroscience
A Study of Seltorexant as Monotherapy in Adults and Elderly Participants With Major Depressive Disorder
Ages 18 Years to 74 Years · 45 sites · in California: Bellflower, Glendale, Oceanside, Orange, Riverside, Walnut Creek · Janssen Research & Development, LLC
Cognition and Behavior With Sham Accelerated TMS
Ages 15 Years to 25 Years · 1 site · in California: Sacramento · University of California, Davis
Virtual Reality-enhanced Psychotherapy for Perinatal Depression
Ages 18 Years to no maximum · 1 site · in California: Palo Alto · Stanford University
Sleep Health in U.S. Marines
Ages 18 Years to no maximum · 1 site · in California: San Diego · San Diego State University
ATLAS-1: Advanced Trial for Longitudinal Assessment in Salma 1
Ages 18 Years to no maximum · 2 sites · in California: La Jolla, Laguna Hills · Salma Health, Inc.
ACE-D Aim 3 Clinical Cognitive Trial to Enhance Translation in Depression
Ages 18 Years to 60 Years · 2 sites · in California: Palo Alto · Stanford University
Ketamine for Veterans With Parkinson's Disease
Ages 40 Years to 80 Years · 1 site · in California: San Francisco · VA Office of Research and Development
Nutritional Intervention for College Students With Depression
Ages 18 Years to no maximum · 1 site · in California: La Jolla · University of California, San Diego
Clinical Assessment of Response in the Treatment of Depression With Daytime Sleepiness Using Solriamfetol
Ages 18 Years to 65 Years · 40 sites · in California: Bellflower, Chino, Glendale, Imperial, Los Angeles, Oceanside · Axsome Therapeutics, Inc.
A Study of Brenipatide in Adult Participants With Major Depressive Disorder
Ages 18 Years to 75 Years · 179 sites · in California: Moorpark, Orange · Eli Lilly and Company
A Study to Assess Adverse Events and Change in Disease Activity of Oral Icalcaprant in Adult Participants With Bipolar I or II Disorder
Ages 18 Years to 65 Years · 33 sites · in California: Anaheim, Garden Grove, Montclair, Oceanside, Orange, Sherman Oaks · AbbVie
Effectiveness of the SoundHeal Multi-Sensory Integrative Therapy Among Justice-Involved Youth
Ages 12 Years to 18 Years · 1 site · in California: San Luis Obispo · SoundHeal
Multicenter Study to Assess the Efficacy and Safety of LB-102 in the Treatment of Adult Patients With BP1MDE.
Ages 18 Years to 65 Years · 26 sites · in California: Bellflower, Culver City, Garden Grove, Lemon Grove, Los Angeles, Orange · LB Pharmaceuticals Inc.
Stratified Pharmacological Approaches for Regulating Circuit-Level Effects
Ages 18 Years to 65 Years · 1 site · in California: Palo Alto · Stanford University
Double-blind, Placebo-controlled Study in Adults With Major Depressive Disorder
Ages 18 Years to 70 Years · 1 site · in California: Garden Grove · Supernus Pharmaceuticals, Inc.
NQ Square TMS for MDD 1Dx3S Adults Multi-site Sham-controlled Protocol
Ages 22 Years to 85 Years · 2 sites · in California: Campbell, Sunnyvale · NeuroQore Inc.
Postpartum Education Via Artificial Intelligence for Recovery and Loneliness: A Randomized Controlled Trial
Ages 18 Years to no maximum · 1 site · in California: La Jolla · University of California, San Diego
A Phase 2 Study of Zelquistinel or Placebo for the Reduction of Symptoms of Major Depressive Disorder
Ages 18 Years to 64 Years · 30 sites · in California: Montclair, Oceanside, Redlands, San Francisco, San Jose, Walnut Creek · Syndeio Biosciences, Inc
RCT of Psilocybin-assisted CBT for Depression
Ages 21 Years to 60 Years · 1 site · in California: Los Angeles · University of California, Los Angeles
A Study to Assess Change in Disease Activity and Adverse Events of Oral Icalcaprant in Adult Participants With Major Depressive Disorder
Ages 18 Years to 65 Years · 33 sites · in California: Anaheim, Imperial, Lemon Grove, Long Beach, Sherman Oaks, Temecula · AbbVie
A Study of a Deuterated Psilocin Analog (CYB003) in Humans With Major Depressive Disorder
Ages 18 Years to 85 Years · 68 sites · in California: Glendale, Los Angeles, Los Angeles, Orange, Orange, San Juan Capistrano · Cybin IRL Limited
Living Well Program: Impact on Healthcare Costs and Clinical Outcomes in Breast Cancer Care
Ages 18 Years to no maximum · 1 site · in California: Los Angeles · Scott A. Irwin, MD, PhD
ACP-211 Monotherapy for Major Depressive Disorder With Inadequate Antidepressant Response
Ages 18 Years to 65 Years · 24 sites · in California: Chino, Glendale, La Jolla, Orange, West Hills · ACADIA Pharmaceuticals Inc.
Optimizing Brain Excitability in Depression
Ages 18 Years to 65 Years · 2 sites · in California: Iowa City, Stanford · Stanford University
A Study of the Safety and Exploratory Efficacy of Oral AFA-281 in Patients with Alcohol Use Disorder
Ages 21 Years to 65 Years · 1 site · in California: Los Angeles · Afasci Inc
Virtual Reality-Enhanced Behavioral Activation for Older Adults With Depression
Ages 65 Years to no maximum · 1 site · in California: Stanford · Stanford University
Spaced Transcranial Direct Current Stimulation for Treatment-Resistant Depression: A Home-Based Feasibility and Safety Study
Ages 18 Years to 85 Years · 1 site · in California: San Diego · University of California, San Diego
An Open-Label Extension Study to Evaluate the Safety and Tolerability of SPT-300 (GlyphAllo) in Participants With Major Depressive Disorder, With or Without Anxious Distress (BUOY-1 OLE Study)
Ages 18 Years to 66 Years · 42 sites · in California: Chino, Garden Grove, Glendale, San Jose · Seaport Therapeutics
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
Ages 18 Years to no maximum · 19 sites · in California: Chino, Fresno, Long Beach, Orange, Redlands, San Diego · Neurocrine Biosciences
SUpport From PEeRs to Expand Access Study - Community
Ages 18 Years to 100 Years · 1 site · in California: San Francisco · University of California, Berkeley
fMRI Neurofeedback With Matter Neuroscience App
Ages 18 Years to 80 Years · 1 site · in California: Stanford · Stanford University
RE104 Safety and Efficacy Study in Adjustment Disorder in Cancer and Other Medical Illnesses
Ages 18 Years to 80 Years · 32 sites · in California: San Diego, Santa Rosa · Reunion Neuroscience Inc
Phase III Long-term Extension Trial to Assess Safety and Efficacy of CYB003 in MDD (EXTEND)
Ages 18 Years to 85 Years · 49 sites · in California: Glendale, La Jolla, Los Angeles, Los Angeles, Los Angeles, Oceanside · Cybin IRL Limited
Closed-Loop Deep Brain Stimulation for Treatment-Resistant Bipolar Depression
Ages 22 Years to 70 Years · 1 site · in California: San Francisco · Andrew Krystal
HeartGPS: A Study Exploring the Effects of a Psychological Intervention for Parents and Their Babies After Prenatal Cardiac Diagnosis
Ages 18 Years to no maximum · 4 sites · in California: Los Angeles · Children's Hospital Medical Center, Cincinnati
RCT for Latina Mental Health Using Web-Based Apps
Ages 18 Years to no maximum · 1 site · in California: Los Angeles · University of California, Los Angeles
Accelerated Intermittent Theta Burst Stimulation for Adolescent and Young Adult Depression With Elevated Suicide Risk
Ages 15 Years to 25 Years · 1 site · in California: Sacramento · University of California, Davis
Ketogenic Metabolic Therapy in Schizophrenia, Bipolar Disorder, Major Depressive Disorder: Deep Omic Profiling
Ages 18 Years to 80 Years · 1 site · in California: Palo Alto · Stanford University
E-Mindfulness Approaches for Living After Breast Cancer
Ages 18 Years to 50 Years · 376 sites · in California: Anaheim, Antioch, Bakersfield, Baldwin Park, Bellflower, Cameron Park · NRG Oncology
Virtual Reality Interventions for the Improvement of Depression, Anxiety and Pain in Patients With Head and Neck Cancer and Caregivers
Ages 18 Years to no maximum · 1 site · in California: Duarte · City of Hope Medical Center
A Study to Evaluate the Efficacy and Safety of SPT-300 (GlyphAllo) in Participants With Major Depressive Disorder, With or Without Anxious Distress (BUOY-1 Study)
Ages 18 Years to 65 Years · 55 sites · in California: Chino, Garden Grove, Glendale, Redlands, San Jose · Seaport Therapeutics
Ketamine Effects on Learning In Eating Disorders
Ages 16 Years to 26 Years · 1 site · in California: San Francisco · Amanda Downey, MD
TIDES 2.0: Prevalence and Longitudinal Course of Depression, Anxiety, and Behavior Problems in Children With Cystic Fibrosis Under 12 Years of Age
Ages 18 Months to 11 Years · 12 sites · in California: Orange · State University of New York at Buffalo
NBI-1065845-MDD3026: Study to Assess the Efficacy and Safety of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)
Ages 18 Years to no maximum · 28 sites · in California: Chino, Los Angeles, Stanford · Neurocrine Biosciences
Improving Behavioral Health for Caregivers and Children After Pediatric Injury
Ages 18 Years to no maximum · 4 sites · in California: Los Angeles · Medical University of South Carolina
Training Reward Responsiveness Through Virtual Reality
Ages 18 Years to no maximum · 1 site · in California: Los Angeles · University of California, Los Angeles
Induction of Dreaming With EEG and Anesthesia in Healthy Adults
Ages 18 Years to 70 Years · 1 site · in California: Stanford · Stanford University
Assessing Improvements in Mood and Sleep Trial
Ages 55 Years to no maximum · 3 sites · in California: Los Angeles · University of Pittsburgh
Probiotic Administration for Adolescent Depression
Ages 15 Years to 24 Years · 1 site · in California: San Francisco · University of California, San Francisco
Sleep TMS for Depression
Ages 18 Years to 65 Years · 1 site · in California: Stanford · Stanford University
Long-Term Study to Assess the Safety and Tolerability of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)
Ages 18 Years to no maximum · 97 sites · in California: Glendale, Los Angeles, Oceanside, Orange, Pico Rivera, San Diego · Neurocrine Biosciences
Filipino Family Health Initiative 1.0
Ages 8 Years to no maximum · 1 site · in California: Pasadena · Kaiser Permanente
Acceptance and Commitment Therapy for Adolescents and Young Adults With Sickle Cell Disease
Ages 14 Years to 21 Years · 1 site · in California: Los Angeles · Children's Hospital Los Angeles
In-patient SCC TMS
Ages 18 Years to 65 Years · 1 site · in California: Los Angeles · University of California, Los Angeles
Maintenance rTMS for Depression (Maitr-De)
Ages 18 Years to 80 Years · 3 sites · in California: San Diego · University of California, San Diego
Electrical Vestibular Nerve Stimulation (VeNS) as a Treatment for Major Depressive Disorder (MDD)
Ages 18 Years to 80 Years · 2 sites · in California: San Diego · Neurovalens Ltd.
NBI-1065845-MDD3025: Study to Assess the Efficacy and Safety of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)
Ages 18 Years to no maximum · 34 sites · in California: Glendale, Redlands, San Francisco · Neurocrine Biosciences
Sleep and Light Intervention (SALI) for Menopausal Mood Dysfunction
Ages 45 Years to 75 Years · 1 site · in California: San Diego · University of California, San Diego
Evaluation of Efficacy and Safety of Milsaperidone as Adjunctive Therapy in Patients With Major Depressive Disorder
Ages 18 Years to 65 Years · 50 sites · in California: Garden Grove, Orange, Redlands, San Jose, Walnut Creek · Vanda Pharmaceuticals
The Impact of Melatonin Lotion on Sleep and Mental Health
Ages 18 Years to 21 Years · 1 site · in California: Redlands · University of Redlands
More: Acne clinical trials · Alzheimer’s disease and related dementias clinical trials · Cannabis use disorder clinical trials · Chronic hives (chronic urticaria) clinical trials · COPD (chronic obstructive pulmonary disease) clinical trials · Moderately to severely active crohn's disease clinical trials