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Showing 1–24 of 3,286 matching trials from the live ClinicalTrials.gov search.
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Withdrawn No phase listed Observational

A Non-Interventional Pilot Study to Explore the Role of Gut Flora in Bipolar Disorder

NCT04211428
View directory record Official record
Conditions
Bipolar Disorder, Bipolar I Disorder, Bipolar II Disorder, Bipolar Type I Disorder, Bipolar Disorder Mild, Bipolar Disorder Moderate, Bipolar Disorder Severe
Interventions
No intervention
Other
Lead sponsor
ProgenaBiome
Other
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2030
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced Jul 21, 2026, 1:31 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Comparison of Plasma Caffeine Concentration After Oral Consumption of Caffeinated Beverages With Varied Bioactive Compounds in Healthy Volunteers

NCT04281758
View directory record Official record
Conditions
Plasma Caffeine Concentration
Interventions
Beverage
Other
Lead sponsor
PepsiCo Global R&D
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 29, 2020 · Synced Jul 21, 2026, 1:31 PM EDT
Not yet recruiting No phase listed Observational

MOCHA: Embedded Inpatient Mental Health Care for High-Risk Perinatal Patients

NCT07540585
View directory record Official record
Conditions
Anxiety Disorders, Stress Disorders, Post-Traumatic, Pregnancy, High Risk, Depressive Disorder, Major, Pregnancy Complications, ADHD - Attention Deficit Disorder With Hyperactivity
Interventions
Collaborative Mental Health Care Program (CMHCP)
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 100 Years · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Jul 21, 2026, 1:31 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Mental Health Impact of the COVID-19 Pandemic on Amish and Mennonite Participants in AMBiGen

NCT04684615
View directory record Official record
Conditions
Depression, Anxiety, Bipolar Disorder
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years and older
Enrollment
193 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Jul 21, 2026, 1:31 PM EDT
Completed Phase 3 Interventional

Seroquel in Bipolar Depression Versus SSRI

NCT00119652
View directory record Official record
Conditions
Bipolar Disorder, Bipolar Depression, Depression
Interventions
quetiapine fumarate (Seroquel), paroxetine, mood stabilizing activity
Drug · Behavioral
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 65 Years
Enrollment
676 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
28
States / cities
Phoenix, Arizona • Little Rock, Arkansas • National City, California + 25 more
Source: ClinicalTrials.gov public record
Updated Jan 3, 2013 · Synced Jul 21, 2026, 1:31 PM EDT
Recruiting Early Phase 1 Interventional

Synaptic Mechanisms of Continuous Theta Burst Stimulation in Depression

NCT07560878
View directory record Official record
Conditions
Major Depression
Interventions
D-Cycloserine (DCS), Continuous theta-burst stimulation (cTBS), Transcranial Magnetic Stimulation Sham, Memantine, Lorazepam (drug), Baclofen, Placebo
Drug · Device
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Jul 21, 2026, 1:31 PM EDT
Completed No phase listed Observational

Clinical Trial of CBASP for Individuals With Co-occurring Chronic Depression and Alcohol Dependence

NCT01528748
View directory record Official record
Conditions
Depressive Disorder, Major Depressive Disorder, Dysthymic Disorder, Alcohol-Related Disorders, Alcoholism
Interventions
Cognitive Behavioral Analysis System of Psychotherapy
Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
21 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2018
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 16, 2019 · Synced Jul 21, 2026, 1:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Impact of 8 Weeks of Digital Meditation Application and Healthy Eating Program on Work Stress and Health Outcomes

NCT03945214
View directory record Official record
Conditions
Stress, Psychological, Behavioral Symptoms, Sleep, Health Behavior, Weight, Body
Interventions
Meditation, Healthy Eating, Meditation + healthy eating
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
163 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 27, 2023 · Synced Jul 21, 2026, 1:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Probiotic Administration on Mood

NCT05343533
View directory record Official record
Conditions
Depression, Sleep, Stress, Anxiety, Mood Disorders
Interventions
Probiotic
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 50 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 24, 2022 · Synced Jul 21, 2026, 1:31 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

PET Imaging of Brain mGluR1 Receptors Using [18F]FIMX

NCT02230592
View directory record Official record
Conditions
Anxiety Disorder, Major Depressive Disorder
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 55 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced Jul 21, 2026, 1:31 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Depression, Epinephrine, and Platelet Function

NCT00166114
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Escitalopram, Desipramine
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2009
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 22, 2015 · Synced Jul 21, 2026, 1:31 PM EDT
Recruiting Not applicable Interventional

Magnetic Seizure Therapy in Bipolar Depression (MST-BpD) and Treatment Resistant Depression (MST-TRD)

NCT04080778
View directory record Official record
Conditions
Bipolar Disorder
Interventions
magnetic seizure therapy (MST), electroconvulsive therapy (ECT)
Device
Lead sponsor
Joao L. DeQuevedo
Other
Eligibility
22 Years to 85 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 2, 2025 · Synced Jul 21, 2026, 1:31 PM EDT
Completed Phase 3 Interventional Results available

A Study in the Treatment of Children and Adolescents With Major Depressive Disorder

NCT00849693
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Placebo, fluoxetine, duloxetine
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
7 Years to 17 Years
Enrollment
463 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
44
States / cities
Birmingham, Alabama • Dothan, Alabama • Little Rock, Arkansas + 41 more
Source: ClinicalTrials.gov public record
Updated Apr 18, 2012 · Synced Jul 21, 2026, 1:31 PM EDT
Recruiting Phase 2 Interventional

A Study to Assess Adverse Events and Change in Disease Activity of Oral Icalcaprant in Adult Participants With Bipolar I or II Disorder

NCT06696755
View directory record Official record
Conditions
Bipolar I Disorder, Bipolar II Disorder
Interventions
Icalcaprant, Placebo for Icalcaprant
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 65 Years
Enrollment
195 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
33
States / cities
Huntsville, Alabama • Chandler, Arizona • Tucson, Arizona + 29 more
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Jul 21, 2026, 1:31 PM EDT
Terminated Phase 2 Interventional Results available

Double-Blind Placebo-Controlled Trial of Riluzole in Pediatric Bipolar Disorder

NCT00805493
View directory record Official record
Conditions
Bipolar Disorder, Anxiety Disorders, Bipolar Affective Disorder, Bipolar Depression
Interventions
Riluzole
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
9 Years to 17 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 14, 2017 · Synced Jul 21, 2026, 1:31 PM EDT
Completed Phase 2 Interventional Results available

Pharmacokinetics and Tolerability of Vortioxetine (Lu AA21004) in Child and Adolescent Patients With Depressive or Anxiety Disorder

NCT01491035
View directory record Official record
Conditions
Depressive Disorder, Anxiety Disorder
Interventions
Vortioxetine
Drug
Lead sponsor
H. Lundbeck A/S
Industry
Eligibility
7 Years to 17 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
4
States / cities
Washington D.C., District of Columbia • Wichita, Kansas • Cincinnatti, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 15, 2017 · Synced Jul 21, 2026, 1:31 PM EDT
Recruiting Not applicable Interventional

A Novel Peer-Delivered Recovery-Focused Suicide Prevention Intervention for Veterans With Serious Mental Illness

NCT05537376
View directory record Official record
Conditions
Psychotic Disorders, Bipolar Disorders, Suicidal Ideation, Suicide, Attempted
Interventions
SUicide Prevention by Peers Offering Recovery Tactics
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Jul 21, 2026, 1:31 PM EDT
Recruiting Not applicable Interventional

Exercise Training for Managing Major Depressive Disorder in Multiple Sclerosis

NCT05051618
View directory record Official record
Conditions
Multiple Sclerosis, Major Depressive Disorder
Interventions
POWER-MS, FLEX-MS
Behavioral
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 64 Years
Enrollment
146 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Jul 21, 2026, 1:31 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Hydrate Heroes for Improving Brain Function & Mood

NCT07241260
View directory record Official record
Conditions
Hydration Status
Interventions
Hydrate Heroes (6 packets), Hydrate Heroes (3 packets)
Dietary Supplement
Lead sponsor
University of South Florida
Other
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Jul 21, 2026, 1:31 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Ketamine for OUD and Comorbid Depression (OUDCD)

NCT05051449
View directory record Official record
Conditions
Opioid Use Disorder, Depressive Disorder
Interventions
Ketamine Hydrochloride
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 6, 2024 · Synced Jul 21, 2026, 1:31 PM EDT
Recruiting Phase 1 Interventional

Mechanism of Action Underlying Ketamine's Antidepressant Effects: The AMPA Throughput Theory in Patients With Treatment-Resistant Major Depression

NCT03973268
View directory record Official record
Conditions
Depression, Major Depressive Disorder, Major Depression
Interventions
Arm 1, 2, 3 device interventions, Arm 2 Interventions, Arm 1, 2, 3 drug Interventions, Arm 1 and 2 Interventions
Device · Other · Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 70 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Jul 21, 2026, 1:31 PM EDT
Completed No phase listed Observational

Translational Investigation of Gestational Environment on Neurobehavioral Function in Children

NCT02715778
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
6 Years and older
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 15, 2020 · Synced Jul 21, 2026, 1:31 PM EDT
Completed Phase 2 Interventional

BPL-003 Efficacy and Safety in Treatment Resistant Depression

NCT05870540
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
BPL-003
Drug
Lead sponsor
Beckley Psytech Limited
Industry
Eligibility
18 Years to 75 Years
Enrollment
196 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
19
States / cities
Birmingham, Alabama • Rogers, Arkansas • San Diego, California + 15 more
Source: ClinicalTrials.gov public record
Updated Jul 17, 2025 · Synced Jul 21, 2026, 1:31 PM EDT
Not yet recruiting Not applicable Interventional

The Oh Happy Day Class - Digital Connections (OHDC-DC): A Pilot Study

NCT06206226
View directory record Official record
Conditions
Depression, Depressive Disorder, Depressive Symptoms
Interventions
OHDC-DC
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Jul 21, 2026, 1:31 PM EDT