Independent directory Public ClinicalTrials.gov records United States
Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 17, 2026, 11:25 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 841–864 of 1,652 matching trials from the live ClinicalTrials.gov search.
Completed Phase 4 Interventional Accepts healthy volunteers Results available

The Effect of N-Acetyl Cysteine on Cortical Erosion in Early Stage Schizophrenia

NCT01339858
Conditions
Schizophrenia, Psychotic Disorder NOS, Schizoaffective Disorder, Schizophreniform
Interventions
N-Acetyl Cysteine, sugar pill
Drug · Other
Lead sponsor
Indiana University
Other
Eligibility
16 Years to 35 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
2
States / cities
Indianapolis, Indiana
Conditions
Schizophrenia
Interventions
Oxytocin: 24IU - 168 IU, Placebo
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
San Diego, California
Conditions
Schizophreniform Disorder, Schizoaffective Disorder, Psychosis, Depressive Disorder, Major, Bipolar Disorder
Interventions
Ziprasidone
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
13 Years to 17 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
New York, New York
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
haloperidol decanoate, paliperidone palmitate
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
311 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
22
States / cities
Palo Alto, California • New Haven, Connecticut • Miami, Florida + 19 more
Conditions
Bipolar Disorder, Psychotic Disorders
Interventions
Olanzapine
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
6 Years to 18 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2007
U.S. locations
2
States / cities
Belmont, Massachusetts • Medford, Massachusetts
Conditions
Schizophrenia
Interventions
OPC-34712, Placebo, Aripiprazole
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
459 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
16
States / cities
Little Rock, Arkansas • Escondido, California • Garden Grove, California + 12 more
Conditions
Schizophrenia
Interventions
SEP-363856, Prior antipsychotic (risperidone, olanzapine, quetiapine or aripiprazole)
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
4
States / cities
Little Rock, Arkansas • Rogers, Arkansas • Dayton, Ohio + 1 more
Conditions
Schizophrenia
Interventions
Cognitive Enhancement Therapy, Social Skills Training
Behavioral
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Auditory Hallucination, Schizophrenia
Interventions
Transcranial direct-current stimulation (tDCS), Placebo
Device
Lead sponsor
Manhattan Psychiatric Center
Other
Eligibility
18 Years to 65 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
New York, New York
Completed No phase listed Observational

PET Scanning in Parkinson s Disease

NCT00024622
Conditions
Schizophrenia, Parkinson's Disease
Interventions
O-15 Water, 18F-Fluoro-L-dopa
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 90 Years
Enrollment
502 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Schizophrenia
Interventions
ALKS 3831, Olanzapine
Drug
Lead sponsor
Alkermes, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
561 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
52
States / cities
Little Rock, Arkansas • Springdale, Arkansas • Anaheim, California + 46 more
Conditions
Schizophrenia
Interventions
Physically Ready for Invigorating Movement Every Day (PRIME), Program for Activity, Leisure Skills, and Socialization (PALSS)
Behavioral
Lead sponsor
Veterans Medical Research Foundation
Other
Eligibility
21 Years to 64 Years
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
1
States / cities
La Jolla, California
Completed Phase 2 Interventional Results available

Effects of Galantamine on Cognition

NCT01100775
Conditions
Schizophrenia
Interventions
Galantamine, Placebo
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 64 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Baltimore, Maryland
Completed Not applicable Interventional Results available

Song-making In a Group (SING) R61

NCT05537428
Conditions
Schizophrenia
Interventions
Musical Intervention
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
Schizophrenia, First Episode Psychosis
Interventions
search engine advertisement campaign
Behavioral
Lead sponsor
Northwell Health
Other
Eligibility
Not listed
Enrollment
698 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
2
States / cities
Glen Oaks, New York • Queens, New York
Conditions
Schizophrenia
Interventions
CT-156-C-001
Device
Lead sponsor
Click Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
New York, New York
Completed Not applicable Interventional

Improving Care and Reducing Cost Study

NCT02364544
Conditions
Schizophrenia, Schizoaffective Disorder, Psychosis NOS
Interventions
Relapse Prevention Plan, Daily Support Website, Computer CBT for voices and paranoia, FOCUS, Prescriber Decision Assistant
Behavioral · Other
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 60 Years
Enrollment
461 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
8
States / cities
Fort Lauderdale, Florida • Lawrenceburg, Indiana • Grand Rapids, Michigan + 5 more
Conditions
Schizophrenia
Interventions
Bifeprunox
Drug
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years to 66 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
83
States / cities
Little Rock, Arkansas • Anaheim, California • Boynton Beach, California + 67 more
Conditions
Schizophrenia, Bipolar Disorder, Anosognosia
Interventions
Contingency Management
Behavioral
Lead sponsor
Laureate Institute for Brain Research, Inc.
Other
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Tulsa, Oklahoma
Conditions
Schizophrenia
Interventions
14C-SEP-380135
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Lincoln, Nebraska
Conditions
Schizophrenia
Interventions
Low Dose Asenapine maleate transdermal patch, High Dose Asenapine maleate transdermal patch, Placebo
Drug
Lead sponsor
Noven Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
617 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Jersey City, New Jersey
Conditions
Chronic Mental Illness, Chronic Physical Illness
Interventions
Patient-Directed Wellness Account, Health Navigator
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
21 Years to 55 Years
Enrollment
1,663 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Schizophrenia
Interventions
Cognitive Remediation, Computer-skills training
Behavioral
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2005
U.S. locations
1
States / cities
Hartford, Connecticut
Conditions
Schizophrenia
Interventions
Risperidone ISM® 100 mg
Drug
Lead sponsor
Rovi Pharmaceuticals Laboratories
Industry
Eligibility
18 Years to 65 Years
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
Long Beach, California • Berlin, New Jersey