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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Unspecified Psychosis Clear all
Recruiting Phase 3 Interventional

A Study to Evaluate Safety and Efficacy of KarXT + KarX-EC as a Treatment for Psychosis Associated With Alzheimer's Disease (ADEPT-5)

NCT06947941
View directory record Official record
Conditions
Alzheimer Disease, Psychosis
Interventions
KarXT, KarX-EC, KarXT + KarX-EC Arm Matching Placebo
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
55 Years to 90 Years
Enrollment
325 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
6
States / cities
Gilbert, Arizona • Chino, California • Naples, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Jul 23, 2026, 5:45 AM EDT
Completed Phase 1 Interventional Results available

NAPLS Omega-3 Fatty Acid Versus Placebo Study

NCT01429454
View directory record Official record
Conditions
Psychosis
Interventions
Omega-3 Long Chain Fatty Acid, Placebo
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
12 Years to 30 Years
Enrollment
127 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
8
States / cities
Los Angeles, California • San Diego, California • New Haven, Connecticut + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 24, 2021 · Synced Jul 23, 2026, 5:45 AM EDT
Completed Phase 2 Interventional Results available

A Double-Blind Trial of Adjunctive Valacyclovir to Improve Cognition in Early Phase Schizophrenia

NCT02008773
View directory record Official record
Conditions
Schizophrenia
Interventions
Valacyclovir HCI 500 mg tablets, placebo
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 40 Years
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
13
States / cities
Bellflower, California • Los Angeles, California • Riverside, California + 9 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2019 · Synced Jul 23, 2026, 5:45 AM EDT
Completed Not applicable Interventional Results available

An Integrated Program for the Treatment of First Episode of Psychosis

NCT01321177
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Schizophreniform Disorder, Brief Psychotic Disorder, Psychotic Disorder NOS
Interventions
Integrated Treatment, Community Care
Behavioral
Lead sponsor
Northwell Health
Other
Eligibility
15 Years to 40 Years
Enrollment
404 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
33
States / cities
San Fernando, California • Santa Clarita, California • Denver, Colorado + 30 more
Source: ClinicalTrials.gov public record
Updated Oct 25, 2021 · Synced Jul 23, 2026, 5:45 AM EDT
Completed Phase 2 Interventional

Glycine to Treat Psychotic Disorders in Children

NCT00005658
View directory record Official record
Conditions
Psychotic Disorder, Schizoaffecitve Disorder, Schizophrenia
Interventions
Glycine
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 23, 2026, 5:45 AM EDT
Recruiting Not applicable Interventional

Digital Strategies to Advance Help-Seeking - Aim 3

NCT06774417
View directory record Official record
Conditions
Clinical High Risk, Early Psychosis, First Episode Psychosis
Interventions
Digital nudge
Other
Lead sponsor
Columbia University
Other
Eligibility
12 Years to 29 Years
Enrollment
25,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Jul 23, 2026, 5:45 AM EDT
Recruiting Phase 3 Interventional

A Study to Evaluate KarXT as a Treatment for Psychosis Associated With Alzheimer's Disease (ADEPT-4)

NCT06585787
View directory record Official record
Conditions
Alzheimer Disease
Interventions
KarXT, Placebo
Drug
Lead sponsor
Karuna Therapeutics, Inc., a Bristol Myers Squibb company
Industry
Eligibility
55 Years to 90 Years
Enrollment
406 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
99
States / cities
Chandler, Arizona • Gilbert, Arizona • Phoenix, Arizona + 68 more
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Jul 23, 2026, 5:45 AM EDT
Completed Not applicable Interventional

Improving Access to Early Psychosis Coordinated Specialty Care

NCT04277585
View directory record Official record
Conditions
Psychosis
Interventions
Telehealth
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 36 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 30, 2021 · Synced Jul 23, 2026, 5:45 AM EDT
Withdrawn Phase 4 Interventional

Ziprasidone vs Standard Therapy for Agitated Patients in the ED

NCT00786318
View directory record Official record
Conditions
Psychosis, Agitation, Delirium
Interventions
ziprasidone, Standard therapy
Drug
Lead sponsor
George Washington University
Other
Eligibility
18 Years to 100 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 24, 2017 · Synced Jul 23, 2026, 5:45 AM EDT
Enrolling by invitation Not applicable Interventional

Reducing the Duration of Untreated Psychosis in the United States: The Impact of Screening and Systematic Communication

NCT05509998
View directory record Official record
Conditions
First Episode Psychosis (FEP), Clinical High Risk for Psychosis (CHR)
Interventions
Screening Method (SM), Screening and Communication Method (SCM)
Behavioral
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
12 Years to 30 Years
Enrollment
912 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 19, 2025 · Synced Jul 23, 2026, 5:45 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Family Peer Navigator for Early Psychosis for Black Families

NCT05284721
View directory record Official record
Conditions
Family Members
Interventions
Family Peer Navigator for Early Psychosis, Care Coordination
Behavioral
Lead sponsor
Washington State University
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 22, 2025 · Synced Jul 23, 2026, 5:45 AM EDT
Completed Not applicable Interventional

CATIE-Alzheimer's Disease Trial

NCT00015548
View directory record Official record
Conditions
Alzheimer's Disease
Interventions
Olanzapine, Quetiapine, Risperidone, Citalopram
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2004
U.S. locations
34
States / cities
Tuscaloosa, Alabama • Irvine, California • Los Angeles, California + 29 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2015 · Synced Jul 23, 2026, 5:45 AM EDT
Completed Phase 4 Interventional Results available

Fixed Dose Intervention Trial of New England Enhancing Survival in SMI Patients

NCT02188121
View directory record Official record
Conditions
Serious Mental Illness, Schizophrenia, Schizoaffective Disorder, Bipolar Disorder, Cardiovascular Disease, Major Depressive Disorder, Psychosis NOS
Interventions
Simvastatin, Losartan
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 89 Years
Enrollment
227 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 29, 2023 · Synced Jul 23, 2026, 5:45 AM EDT
Completed No phase listed Observational

Studies of Frontal Lobe Brain Functioning in Schizophrenia

NCT00001258
View directory record Official record
Conditions
Healthy Subjects, Schizophrenia, Parkinson Disease
Interventions
Oxygen-15 Water
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 90 Years
Enrollment
1,039 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1993
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Jul 23, 2026, 5:45 AM EDT
Terminated Phase 1 Interventional

Transcranial Direct Current Brain Stimulation to Treat Patients With Childhood-Onset Schizophrenia

NCT00757497
View directory record Official record
Conditions
Childhood Onset Psychotic Disorders, Schizophrenia, Psychosis, Mental Disorders
Interventions
Electrical Polarization
Behavioral
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
10 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 11, 2019 · Synced Jul 23, 2026, 5:45 AM EDT
Completed Not applicable Interventional

Pilot Testing the Check Up

NCT04624074
View directory record Official record
Conditions
Cannabis Use Disorder
Interventions
Teen Marijuana Check Up
Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
13 Years to 35 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 4, 2025 · Synced Jul 23, 2026, 5:45 AM EDT
Completed No phase listed Observational Results available

Second-Generation Antipsychotic Treatment Indication Effectiveness And Tolerability In Youth (Satiety) Study

NCT01269710
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Schizophreniform Disorder, Psychotic Disorder, Not Otherwise Specified, Prodromal Schizophrenia, Mood Disorder, Bipolar Disorder, Major Depressive Disorder, Depressive Disorder, Not Otherwise Specified, Mood Disorder, Not Otherwise Specified, Autism Spectrum Disorder
Interventions
Not listed
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
3 Years to 19 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 21, 2013 · Synced Jul 23, 2026, 5:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Community Reinforcement and Family Training for Early Psychosis (CRAFT-EP) and Substance Use: A Pilot Study

NCT05380583
View directory record Official record
Conditions
Psychosis, Substance Use, Substance Use Disorders, Family, Cannabis, Marijuana, Alcohol, Schizophrenia, Schizoaffective Disorder, Bipolar Disorder, Mental Disorder
Interventions
CRAFT-EP, TAU
Behavioral
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Jul 23, 2026, 5:45 AM EDT
Recruiting No phase listed Observational

Digital Strategies to Advance Help-Seeking Aim 1 and 2

NCT06774430
View directory record Official record
Conditions
Clinical High Risk, Early Psychosis, First Episode Psychosis
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
12 Years to 29 Years
Enrollment
25,000 participants
Timeline
2025 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Jul 23, 2026, 5:45 AM EDT
Completed Not applicable Interventional

Computerized Cognitive-Behavioral Therapy for Auditory Hallucinations

NCT02192593
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Computer CBT
Behavioral
Lead sponsor
Boston University Charles River Campus
Other
Eligibility
18 Years to 70 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 5, 2017 · Synced Jul 23, 2026, 5:45 AM EDT
Recruiting Phase 3 Interventional

A Study to Assess Efficacy and Safety of KarXT for the Treatment of Psychosis Associated With Alzheimer's Disease (ADEPT-1)

NCT05511363
View directory record Official record
Conditions
Psychosis Associated With Alzheimer's Disease
Interventions
KarXT, Placebo
Drug
Lead sponsor
Karuna Therapeutics, Inc., a Bristol Myers Squibb company
Industry
Eligibility
55 Years to 90 Years
Enrollment
410 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
59
States / cities
Homewood, Alabama • Phoenix, Arizona • Encino, California + 38 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Jul 23, 2026, 5:45 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Neurobehavioral Mechanisms of Social Isolation and Loneliness in Serious Mental Illness

NCT04940663
View directory record Official record
Conditions
Psychosis, Schizophrenia
Interventions
EMA
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 55 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Charlestown, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Jul 23, 2026, 5:45 AM EDT
Not listed Phase 4 Interventional

Clozapine Versus Olanzapine as Treatment for Comorbid Psychotic Disorder and Substance Use Disorder

NCT03857581
View directory record Official record
Conditions
Psychosis, Substance Use Disorders
Interventions
Clozapine, Olanzapine
Drug
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 60 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Evans, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 22, 2020 · Synced Jul 23, 2026, 5:45 AM EDT
Completed Not applicable Interventional Results available

Improving Negative Symptoms of Psychosis In Real-world Environments

NCT02170051
View directory record Official record
Conditions
Schizophrenia
Interventions
CBSST-CCT, Goal focused supportive contact
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 65 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated May 18, 2021 · Synced Jul 23, 2026, 5:45 AM EDT