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ClinicalTrials.gov public records Last synced Oct 11, 2026, 9:45 AM EDT

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Showing 49–72 of 508 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Schizophrenia / Schizoaffective Disorder Clear all
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Cannabis and Schizophrenia: Self-Medication and Agonist Treatment

NCT00946348
View directory record Official record
Conditions
Schizophrenia, Dual Diagnosis, Schizoaffective Disorder, Psychotic Disorder, Cannabis Use Disorder
Interventions
Dronabinol, Cannabis
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years to 50 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Jul 12, 2021 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Not applicable Interventional

Generalization of Training in Schizophrenia

NCT00108199
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Problem-Solving Training, Work-Related Social Skills Training
Behavioral
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2004
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 21, 2009 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Adult Study Oxytocin - Behavioral

NCT02567032
View directory record Official record
Conditions
Schizophrenia, Oxytocin, Social Cognition, Psychotic Disorders
Interventions
Oxytocin, Saline Nasal Spray
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
324 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2019
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 26, 2020 · Synced Oct 11, 2026, 9:45 AM EDT
Not listed Phase 4 Interventional

Guanfacine Adjunctive Treatment to Atypical Antipsychotics for Cognitive Dysfunction in Schizophrenia

NCT00469664
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Cognitive Impairment
Interventions
Guanfacine/Tenex
Drug
Lead sponsor
Research Foundation for Mental Hygiene, Inc.
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2008
U.S. locations
3
States / cities
New York, New York • The Bronx, New York • W. Brentwood, New York
Source: ClinicalTrials.gov public record
Updated May 21, 2008 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Phase 1 Interventional

BXCL501 for Agitation in Schizophrenia

NCT03708315
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Dexmedetomidine Hydrochloride, Placebos
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 23, 2025 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Phase 4 Interventional Results available

Demonstrate the Effects of Pramlintide on Weight Reduction in Schizophrenia

NCT00690235
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Diabetes, Weight Gain
Interventions
Pramlintide, Placebo
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 16, 2018 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Phase 4 Interventional Results available

Minocycline Augmentation to Clozapine

NCT02124811
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Minocycline
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 26, 2018 · Synced Oct 11, 2026, 9:45 AM EDT
Withdrawn Not applicable Interventional

Transcranial Direct Current Stimulation for Hallucinations in First-Episode Schizophrenia

NCT02661347
View directory record Official record
Conditions
Schizophrenia, Schizophreniform, Schizoaffective Disorder, Psychosis Not Otherwise Specified (NOS)
Interventions
Risperidone, tDCS
Drug · Device
Lead sponsor
Northwell Health
Other
Eligibility
15 Years to 40 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Glen Oaks, New York
Source: ClinicalTrials.gov public record
Updated Mar 13, 2018 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Not applicable Interventional

Confirmatory Efficacy Trial of a Gluten-Free Diet in a Subgroup of Persons With Schizophrenia Who Have High Levels of IgG Anti-Gliadin Antibodies (AGA IG)

NCT03183609
View directory record Official record
Conditions
Schizophrenia, Gluten Sensitivity, Schizo Affective Disorder
Interventions
Gluten Flour in Protein Shake, Rice Flour in Protein Shake
Other
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 64 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 12, 2025 · Synced Oct 11, 2026, 9:45 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

State Representation in Early Psychosis

NCT05273164
View directory record Official record
Conditions
Psychosis, Schizophrenia, Schizophrenia Spectrum and Other Psychotic Disorders, Schizoaffective Disorder
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
15 Years to 45 Years
Enrollment
277 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 22, 2025 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Not applicable Interventional Results available

Targeting Auditory Hallucinations With Alternating Current Stimulation

NCT03221270
View directory record Official record
Conditions
Schizophrenia, Schizo Affective Disorder
Interventions
tACS treatment week, tACS sham week, Maintenance tACS, Maintenance Sham tACS
Device
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 70 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 16, 2022 · Synced Oct 11, 2026, 9:45 AM EDT
Not yet recruiting Not applicable Interventional

Frontal Gamma Coherence Neurofeedback for Patients With Schizophrenia

NCT07659938
View directory record Official record
Conditions
Schizophrenia, Schizoaffective
Interventions
Frontal gamma coherence neurofeedback, Placebo Neurofeedback
Device
Lead sponsor
BioSignal Solutions LLC
Industry
Eligibility
18 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2028
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Sep 24, 2026 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Get Moving and Get Well - Pilot Study

NCT01884025
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Bipolar Disorder, Major Depression, Post Traumatic Stress Disorder
Interventions
Get Moving and Get Well, Health and Humor Class
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 65 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
North Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Nov 5, 2018 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Phase 4 Interventional Results available

Tachyphylaxis, Tolerance, & Withdrawal Post Treatment With Igalmi for Agitation in Schizophrenia or Bipolar Disorder

NCT06041646
View directory record Official record
Conditions
Bipolar Disorder, Schizophrenia, Agitation,Psychomotor, Schizo Affective Disorder, Schizophreniform Disorders
Interventions
Sublingual film containing Igalmi
Drug
Lead sponsor
BioXcel Therapeutics Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
2
States / cities
Little Rock, Arkansas • Rogers, Arkansas
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Treatment of Schizophrenia Through Internet-Based Psychoeducation

NCT00051233
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
World Wide Web-Based Psychoeducation
Procedure
Lead sponsor
University of Pittsburgh
Other
Eligibility
14 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2005
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 30, 2014 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Phase 4 Interventional Results available

Comparison of Antipsychotics for Metabolic Problems in Schizophrenia or Schizoaffective Disorder

NCT00423878
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Risperidone, Olanzapine, Quetiapine, Aripiprazole
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 65 Years
Enrollment
215 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
28
States / cities
Colton, California • Palo Alto, California • New Haven, Connecticut + 25 more
Source: ClinicalTrials.gov public record
Updated Nov 2, 2016 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Phase 4 Interventional

Comparison of Continuing Olanzapine to Switching to Quetiapine in Overweight or Obese Patients With Schizophrenia and Schizoaffective Disorder

NCT00090012
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Olanzapine, Quetiapine
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 75 Years
Enrollment
340 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
25
States / cities
Garden Grove, California • La Mesa, California • San Diego, California + 22 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2007 · Synced Oct 11, 2026, 9:45 AM EDT
Withdrawn No phase listed Observational

Exercise Target Brain Oscillations in Psychosis

NCT05338424
View directory record Official record
Conditions
Psychosis, Schizophrenia, Schizoaffective Disorder
Interventions
Sprint Interval Training (SIT)
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 64 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 10, 2022 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Phase 3 Interventional Results available

The Use of Galantamine HBr (Reminyl) in Electroconvulsive Therapy: Impact on Mood and Cognitive Functioning

NCT00566735
View directory record Official record
Conditions
Major Depression, Bipolar Depression, Schizoaffective Disorder
Interventions
Razadyne, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 90 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 3, 2012 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Phase 2 Interventional Results available

Decreasing Risk of Coronary Artery Disease in Schizophrenia by Omega-3 Fatty Acid Supplementation

NCT00167310
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Major Depression, Bipolar Disorder, Coronary Artery Disease
Interventions
Eicosapentaenoic acid (omega-3 fatty acid), Placebo
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2015
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 10, 2017 · Synced Oct 11, 2026, 9:45 AM EDT
Completed No phase listed Observational

Schizophrenia and the Gut Microbiome

NCT02921243
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Not listed
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 64 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 19, 2019 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Phase 4 Interventional Results available

Biomarker Study of Acamprosate in Schizophrenia

NCT00688324
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Acamprosate
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 55 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
4
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 25, 2019 · Synced Oct 11, 2026, 9:45 AM EDT
Recruiting Not applicable Interventional

Effectiveness of Motivation Skills Training (MST)

NCT05805397
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Motivation Skills Training, Healthy Behaviors Control Group
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Oct 11, 2026, 9:45 AM EDT
Completed Phase 4 Interventional Results available

A Study of the Cataractogenic Potential of Seroquel and Risperdal in the Treatment of Participants With Schizophrenia or Schizoaffective Disorder

NCT00206102
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
quetiapine fumarate, risperidone
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 65 Years
Enrollment
1,098 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
63
States / cities
Little Rock, Arkansas • Mabelvale, Arkansas • Morrilton, Arkansas + 60 more
Source: ClinicalTrials.gov public record
Updated Jan 14, 2013 · Synced Oct 11, 2026, 9:45 AM EDT