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 4, 2026, 7:25 AM EDT

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

Showing 25–48 of 74 matching trials from the live ClinicalTrials.gov search.
Conditions
Psychotic Disorders, Schizophrenia, Schizophreniform Disorders, Schizoaffective Disorders
Interventions
quetiapine, olanzapine, risperidone
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
12 Years to 18 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2006
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
Obesity, Weight Gain, Psychotropic Induced Weight Gain
Interventions
Metformin
Drug
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
10 Years to 17 Years
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Columbus, Ohio
Conditions
Schizophrenia
Interventions
Caregiver psycho-education and skills training, Caregiver support available at the study site, Paliperidone palmitate, Chlorpromazine, Droperidol, Fluphenazine, Haloperidol, Loxapine, Perphenazine, Pimozide, Prochlorperazine, Thiothixene, Thioridazine, Trifluoperazine, Aripiprazole, Asenapine, Clozapine, Iloperidone, Olanzapine, Paliperidone, Quetiapine, Risperidone, Ziprasidone
Other · Drug
Lead sponsor
Janssen Scientific Affairs, LLC
Industry
Eligibility
18 Years and older
Enrollment
296 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
34
States / cities
Bullhead City, Arizona • Oceanside, California • Denver, Colorado + 31 more
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Impact of Aripiprazole Once Monthly Medications on Changes in Brain Structure and Metabolism

NCT02237417
Conditions
Schizophrenia
Interventions
Standard of Care Oral antipsychotics, IM aripiprazole once monthly, No Treatment
Drug · Other
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 35 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2020
U.S. locations
1
States / cities
Salt Lake City, Utah
Conditions
Obesity
Interventions
IHBG-10, Placebo
Dietary Supplement
Lead sponsor
Avera McKennan Hospital & University Health Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Sioux Falls, South Dakota
Recruiting No phase listed Observational Accepts healthy volunteers

National Pregnancy Registry for Psychiatric Medications

NCT01246765
Conditions
Pregnant Women, Psychotropic Drugs
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2033
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Schizophrenia
Interventions
CX516 (Ampakine)
Drug
Lead sponsor
North Suffolk Mental Health Association
Other
Eligibility
18 Years to 65 Years
Enrollment
105 participants
Timeline
2002 – 2007
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Obesity
Interventions
Placebo, IHBG-10
Other · Dietary Supplement
Lead sponsor
Avera McKennan Hospital & University Health Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Sioux Falls, South Dakota
Conditions
Mental Retardation, Developmental Delay Disorder
Interventions
risperidone, clozapine, olanzapine
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
6 Years to 60 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2001
U.S. locations
1
States / cities
Lawrence, Kansas
Conditions
Treatment-resistant Schizophrenia
Interventions
Lu AF35700, Risperidone, Olanzapine
Drug
Lead sponsor
H. Lundbeck A/S
Industry
Eligibility
18 Years and older
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
10
States / cities
San Diego, California • Atlanta, Georgia • Chicago, Illinois + 7 more
Completed Phase 4 Interventional Results available

Metabolic Effects of Antipsychotics in Children

NCT00205699
Conditions
Aggression, Attention Deficit-Hyperactivity, Oppositional Defiant Disorder, Pervasive Development Disorders, Bipolar Disorder
Interventions
risperidone, olanzapine, aripiprazole
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
6 Years to 18 Years
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
1
States / cities
St Louis, Missouri
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, Diabetes, Metabolic Syndrome, Hyperglycemia
Interventions
olanzapine, risperidone
Drug
Lead sponsor
Nathan Kline Institute for Psychiatric Research
Other
Eligibility
18 Years to 65 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
New York, New York
Conditions
Psychoses
Interventions
Not listed
Lead sponsor
Genomas, Inc
Industry
Eligibility
18 Years to 59 Years
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
2
States / cities
Hartford, Connecticut • Lexington, Kentucky
Completed Phase 4 Interventional Accepts healthy volunteers

Side Effects of Newer Antipsychotics in Older Adults

NCT00245206
Conditions
Schizophrenia, Alzheimer's Disease, Dementia
Interventions
Aripiprazole, Olanzapine, Risperidone
Drug
Lead sponsor
Veterans Medical Research Foundation
Other
Eligibility
40 Years and older
Enrollment
406 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2010
U.S. locations
1
States / cities
San Diego, California
Conditions
Schizophrenia
Interventions
Galantamine, CDP-choline, Placebo, risperidone, olanzapine, quetiapine, ziprasidone, and/or aripiprazole
Drug
Lead sponsor
Georgetown University
Other
Eligibility
18 Years to 70 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Washington D.C., District of Columbia
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
Conditions
Schizophrenia
Interventions
ziprasidone vs risperidone or olanzapine
Drug
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 50 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2008
U.S. locations
1
States / cities
Glen Oaks, New York
Conditions
Schizophrenia
Interventions
Risperidone, Olanzapine (enrollment closed in this treatment), Molindone
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
8 Years to 19 Years
Enrollment
116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2007
U.S. locations
4
States / cities
Medford, Massachusetts • Chapel Hill, North Carolina • Cleveland, Ohio + 1 more
Conditions
Schizophrenia
Interventions
iloperidone
Drug
Lead sponsor
Novartis
Industry
Eligibility
18 Years to 64 Years
Enrollment
501 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
59
States / cities
Birmingham, Alabama • Cerritos, California • Costa Mesa, California + 46 more
Conditions
Apathy, Schizophrenia, Schizophrenia; Psychosis
Interventions
Lumateperone 42 mg, Risperidone 2 mg
Drug
Lead sponsor
Louisiana State University Health Sciences Center Shreveport
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Shreveport, Louisiana
Conditions
Schizophrenia
Interventions
Olanzapine, Risperidone
Drug
Lead sponsor
Northwell Health
Other
Eligibility
16 Years to 40 Years
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2007
U.S. locations
2
States / cities
Glen Oaks, New York • The Bronx, New York
Completed Not applicable Interventional

CATIE-Alzheimer's Disease Trial

NCT00015548
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
Completed Phase 4 Interventional

CATIE- Schizophrenia Trial

NCT00014001
Conditions
Schizophrenia
Interventions
perphenazine, olanzapine, quetiapine, risperidone, ziprasidone, clozapine, fluphenazine decanoate
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 65 Years
Enrollment
1,600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2004
U.S. locations
54
States / cities
Chula Vista, California • Los Angeles, California • Orange, California + 45 more