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Showing 1–24 of 1,818 matching trials from the live ClinicalTrials.gov search.
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Completed Not applicable Interventional Results available

Double-Blind Placebo Controlled Study of Adjunctive Aripiprazole for Symptomatic Hyperprolactinemia In Premenopausal Women With Schizophrenia

NCT01338298
View directory record Official record
Conditions
Hyperprolactinemia
Interventions
Aripiprazole, Placebo
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 26, 2019 · Synced Jul 20, 2026, 6:40 PM EDT
Completed Phase 1 Interventional

Movement Disorders Caused by Antipsychotic Drugs in Older Patients

NCT00255879
View directory record Official record
Conditions
Dyskinesia, Drug-Induced
Interventions
Quetiapine, Risperidone, Olanzapine
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
40 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2004
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jun 5, 2013 · Synced Jul 20, 2026, 6:40 PM EDT
Completed Not applicable Interventional

My Coach Connect: An Automated Telephone-based Reporting System for Patients With Mental Illness

NCT01749124
View directory record Official record
Conditions
Chronic Mental Illness, Major Depression, Schizophrenia, Bipolar Disorder
Interventions
My Coach Connect
Behavioral
Lead sponsor
RAND
Other
Eligibility
18 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Long Beach, California
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Jul 20, 2026, 6:40 PM EDT
Completed Phase 2 Interventional Results available

Study Evaluating Vabicaserin in Subjects With Schizophrenia

NCT00563706
View directory record Official record
Conditions
Schizophrenia
Interventions
vabicaserin, risperidone, placebo
Drug · Other
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
199 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
32
States / cities
Little Rock, Arkansas • Cerritos, California • Escondido, California + 27 more
Source: ClinicalTrials.gov public record
Updated Mar 19, 2014 · Synced Jul 20, 2026, 6:40 PM EDT
Recruiting No phase listed Observational

Transition Care for FEP

NCT07713849
View directory record Official record
Conditions
Schizoaffective Disorders, Bipolar Disorder With Psychotic Features, Schizophrenia Disorders, Major Depressive Disorder With Psychotic Features, Psychosis NOS
Interventions
Transition Care Team
Behavioral
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 40 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
2
States / cities
Chicago, Illinois • Harvey, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 19, 2026 · Synced Jul 20, 2026, 6:40 PM EDT
Terminated Phase 4 Interventional

Clozapine Versus Chlorpromazine for Treatment-Unresponsive Schizophrenia

NCT00169039
View directory record Official record
Conditions
Schizophrenia
Interventions
Clozapine, Chlorpromazine
Drug
Lead sponsor
Harvard Medical School (HMS and HSDM)
Other
Eligibility
19 Years to 60 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1994 – 2002
U.S. locations
1
States / cities
Jamaica Plain, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 6, 2015 · Synced Jul 20, 2026, 6:40 PM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Thermoregulation Among Individuals With First-episode Psychosis

NCT04369677
View directory record Official record
Conditions
Psychosis, First Episode Psychosis
Interventions
Not listed
Lead sponsor
Nicholas Breitborde
Other
Eligibility
18 Years to 35 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2025
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 24, 2026 · Synced Jul 20, 2026, 6:40 PM EDT
Recruiting Phase 2 Interventional

Phase 2, Efficacy and Safety Study of ACP-204 in Lewy Body Dementia Psychosis

NCT07029581
View directory record Official record
Conditions
Lewy Body Dementia Psychosis
Interventions
ACP-204, Placebo
Drug
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Eligibility
55 Years to 84 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
26
States / cities
Irvine, California • Washington D.C., District of Columbia • Aventura, Florida + 20 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Jul 20, 2026, 6:40 PM EDT
Completed Phase 1 Interventional

A Drug Interaction Study of Valproic Acid and Paliperidone Extended-Release (ER) in Patients With Schizophrenia, Bipolar I Disorder, or Schizoaffective Disorder

NCT01094249
View directory record Official record
Conditions
Schizophrenia, Bipolar Disorder, Psychotic Disorders
Interventions
divalproex sodium ER/paliperidone ER
Drug
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Industry
Eligibility
18 Years to 65 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
3
States / cities
Kissimmee, Florida • Austin, Texas • Portsmount, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 7, 2014 · Synced Jul 20, 2026, 6:40 PM EDT
Active, not recruiting Not applicable Interventional

Promoting Activity and Cognitive Enrichment in Schizophrenia (PACES)

NCT04143126
View directory record Official record
Conditions
Schizophrenia
Interventions
Cognitive Enhancement Therapy, Enriched Supportive Therapy
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 60 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Jul 20, 2026, 6:40 PM EDT
Terminated Phase 2 Interventional Results available

Telmisartan Pilot Study on Treatment Resistant Schizophrenia

NCT03868839
View directory record Official record
Conditions
Schizophrenia, Schizo Affective Disorder, Treatment-resistant Schizophrenia
Interventions
Telmisartan Pill
Drug
Lead sponsor
Xiaoduo Fan
Other
Eligibility
18 Years to 65 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 1, 2022 · Synced Jul 20, 2026, 6:40 PM EDT
Completed No phase listed Observational

Antipsychotics and Blood Vessel Function

NCT00585273
View directory record Official record
Conditions
Bipolar Disorder, Schizophrenia
Interventions
Not listed
Lead sponsor
Jess G. Fiedorowicz
Other
Eligibility
18 Years to 50 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Aug 28, 2019 · Synced Jul 20, 2026, 6:40 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Computer Game, Qualitative, and MEG/EEG Assessment of Serotonergic Psychedelics

NCT06624137
View directory record Official record
Conditions
OCD, Major Depressive Disorder (MDD), Alcohol Use Disorder (AUD), Healthy Volunteer, Migraine, PTSD, PTSD - Post Traumatic Stress Disorder, Addiction, Tobacco Use Disorder, Obsessive Compulsive Disorder (OCD), Opioid Use Disorder
Interventions
Serotonergic Psychedelic, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
2
States / cities
Hamden, Connecticut • West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Jul 20, 2026, 6:40 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Testing the Interactive Effects of Delta-9-Tetrahydrocannabinol and Pregnenolone

NCT02576912
View directory record Official record
Conditions
Healthy
Interventions
Active Delta-9-THC, Active Pregnenolone, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 6, 2023 · Synced Jul 20, 2026, 6:40 PM EDT
Completed Phase 2 Interventional

Safety and Cognitive Function Study of EVP-6124 in Patients With Schizophrenia

NCT00968851
View directory record Official record
Conditions
Schizophrenia, Central Nervous System Diseases, Cognition
Interventions
EVP-6124, Placebo
Drug
Lead sponsor
FORUM Pharmaceuticals Inc
Industry
Eligibility
18 Years to 55 Years
Enrollment
317 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
14
States / cities
Glendale, California • Oceanside, California • San Diego, California + 10 more
Source: ClinicalTrials.gov public record
Updated Apr 24, 2014 · Synced Jul 20, 2026, 6:40 PM EDT
Completed Not applicable Interventional

PTSD Treatment and Emotion Regulation Skills Training for Veterans With Military Sexual Trauma (PE+ER)

NCT04792775
View directory record Official record
Conditions
Stress Disorders, Post-Traumatic, Anxiety Disorders, Mental Disorder, Traumatic Stress Disorder
Interventions
PE+ER
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Feb 12, 2024 · Synced Jul 20, 2026, 6:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Multi-Level Stigma Intervention for Mental Health Services

NCT06200012
View directory record Official record
Conditions
Social Stigma, Substance Use Disorders, Mental Disorder
Interventions
Multi-level stigma reduction intervention: educational training plus controlled substance agreement policy change, Single-level stigma reduction intervention: educational training
Behavioral
Lead sponsor
Wayne State University
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Oct 13, 2025 · Synced Jul 20, 2026, 6:40 PM EDT
Not listed Not applicable Interventional

Evaluation of Programs of Coordinated Care and Disease Management

NCT00627029
View directory record Official record
Conditions
Congestive Heart Failure, Diabetes, Coronary Artery Disease, Chronic Obstructive Pulmonary Disease, Cancer, Cerebrovascular Disease, Alzheimer's Disease, Psychotic Disorder, Major Depression
Interventions
Care Coordination
Behavioral
Lead sponsor
Mathematica Policy Research, Inc.
Other
Eligibility
Not listed
Enrollment
18,277 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2016
U.S. locations
15
States / cities
Phoenix, Arizona • Washington D.C., District of Columbia • Sunrise, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2015 · Synced Jul 20, 2026, 6:40 PM EDT
Completed Phase 1 Interventional Results available

An Open Label Study of Aripiprazole Intramuscular Injection in Subjects With Schizophrenia

NCT01646827
View directory record Official record
Conditions
Schizophrenia
Interventions
Aripiprazole IM Depot
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
6
States / cities
Cerritos, California • Garden Grove, California • San Diego, California + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2014 · Synced Jul 20, 2026, 6:40 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Adult Oxytocin Study

NCT02577575
View directory record Official record
Conditions
Schizophrenia, Oxytocin, Social Cognition
Interventions
Oxytocin, Saline Nasal Spray
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 20, 2019 · Synced Jul 20, 2026, 6:40 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Targeting Individual Alpha Frequencies to Enhance Perceptual Timing

NCT04856657
View directory record Official record
Conditions
Psychosis, Schizophrenia, Schizo Affective Disorder
Interventions
Transcranial alternating current stimulation
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 64 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 13, 2023 · Synced Jul 20, 2026, 6:40 PM EDT
Completed Not applicable Interventional Results available

mHealth for Psychosis Help-seeking

NCT05905601
View directory record Official record
Conditions
Psychosis
Interventions
NORTH "Full", NORTH "Lite"
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 30 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 28, 2025 · Synced Jul 20, 2026, 6:40 PM EDT
Recruiting Not applicable Interventional

Determining the Role of Social Reward Learning in Social Anhedonia

NCT05617898
View directory record Official record
Conditions
Psychosis
Interventions
Motivational Interviewing, Nutrition Didactic Training
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 35 Years
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
2
States / cities
Birmingham, Alabama • Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 23, 2025 · Synced Jul 20, 2026, 6:40 PM EDT
Completed Phase 1 Interventional Results available

Multiple Ascending Doses of PF-04958242 in Subjects With Stable Schizophrenia

NCT02332798
View directory record Official record
Conditions
Schizophrenia
Interventions
PF-04958242, Placebo
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 55 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Long Beach, California
Source: ClinicalTrials.gov public record
Updated Oct 24, 2021 · Synced Jul 20, 2026, 6:40 PM EDT