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 24, 2026, 5:46 AM EDT

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

Showing 1–24 of 74 matching trials from the live ClinicalTrials.gov search.
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
Conditions
Schizophrenia
Interventions
AVE1625, placebo
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 65 Years
Enrollment
873 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Bridgewater, New Jersey
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Quetiapine or Risperidone + Aripiprazole, Quetiapine or Risperidone + placebo
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years and older
Enrollment
323 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
48
States / cities
Little Rock, Arkansas • Cerritos, California • Costa Mesa, California + 37 more
Conditions
Schizophrenia
Interventions
AZD 8529, Risperidone, Placebo to match AZD8529, Placebo to match risperidone
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 65 Years
Enrollment
296 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
3
States / cities
Garden Grove, California • Glendale, California • Rockville, Maryland
Conditions
Schizophrenia
Interventions
LY2140023, Olanzapine, Aripiprazole, Risperidone, Quetiapine
Drug
Lead sponsor
Denovo Biopharma LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
560 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
42
States / cities
Little Rock, Arkansas • Escondido, California • Garden Grove, California + 39 more
Conditions
Schizophrenia
Interventions
TV-46000, Placebo
Drug
Lead sponsor
Teva Branded Pharmaceutical Products R&D, Inc.
Industry
Eligibility
13 Years to 65 Years
Enrollment
544 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
73
States / cities
Little Rock, Arkansas • Rogers, Arkansas • Anaheim, California + 58 more
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
Conditions
Schizophrenia
Interventions
MK-8189, Placebo, Background AAP Therapy
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years to 60 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Glendale, California
Conditions
Schizophrenia
Interventions
Oral Risperidone, Paliperidone ER
Drug
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Industry
Eligibility
18 Years and older
Enrollment
201 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
15
States / cities
Cerritos, California • Garden Grove, California • Huntington Beach, California + 12 more
Recruiting No phase listed Observational

Maternal And Infant Antipsychotic Study

NCT06049953
Conditions
Antipsychotics, Pregnancy
Interventions
Antipsychotics, Non-antipsychotic medication, No Medication
Drug · Other
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older · Female only
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
New York, New York
Conditions
Schizophrenia
Interventions
paliperidone, risperidone, haloperidole, perphenazine, aripiprazole, quetiapine, paliperidone palmitate, olanzapine
Drug
Lead sponsor
Janssen Scientific Affairs, LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
55
States / cities
Bullhead City, Arizona • Tuscon, Arizona • Little Rock, Arkansas + 52 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
RBP-7000
Drug
Lead sponsor
Indivior Inc.
Industry
Eligibility
18 Years to 42 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Willingboro, New Jersey
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
olanzapine, risperidone
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 65 Years
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
San Diego, California
Conditions
Schizophrenia, Schizoaffective Disorder, Schizophreniform Disorder
Interventions
olanzapine, risperidone
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 65 Years
Enrollment
628 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
31
States / cities
Little Rock, Arkansas • Escondido, California • Garden Grove, California + 28 more
Conditions
Schizophrenia
Interventions
RBP-7000, Placebo, Risperidone
Drug
Lead sponsor
Indivior Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
354 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
32
States / cities
Little Rock, Arkansas • Springdale, Arkansas • Cerritos, California + 25 more
Conditions
Negative Symptoms of Schizophrenia
Interventions
Roluperidone, risperidone, aripiprazole, olanzapine, Placebo
Drug
Lead sponsor
Minerva Neurosciences
Industry
Eligibility
18 Years to 55 Years
Enrollment
380 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
13
States / cities
Bellflower, California • Culver City, California • Garden Grove, California + 10 more
Terminated Phase 4 Interventional Results available

Antipsychotic Effects on Brain Function in Schizophrenia

NCT01913327
Conditions
Schizophrenia, Schizoaffective Disorder, Schizophreniform Disorder
Interventions
Aripiprazole, Risperidone, Modafinil
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 40 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
San Francisco, California
Conditions
Schizophrenia
Interventions
paliperidone palmitate, oral risperidone
Drug
Lead sponsor
Ortho-McNeil Janssen Scientific Affairs, LLC
Industry
Eligibility
18 Years to 35 Years
Enrollment
163 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
23
States / cities
Little Rock, Arkansas • Garden Grove, California • San Diego, California + 20 more
Conditions
Schizophrenia, Acute Episode
Interventions
Elpipodect, Risperidone, Placebo matching MK-8189, Placebo matching risperidone
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years to 50 Years
Enrollment
224 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
28
States / cities
Little Rock, Arkansas • Rogers, Arkansas • Bellflower, California + 23 more
Conditions
Schizoaffective Disorder, Schizophrenia
Interventions
IM risperidone, oral antipsychotic medication
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
382 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
19
States / cities
Tuscaloosa, Alabama • Long Beach, California • Palo Alto, California + 16 more
Conditions
Schizophrenia
Interventions
Risperidone, RBP-7000
Drug
Lead sponsor
Indivior Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
2
States / cities
Little Rock, Alaska • Long Beach, California
Conditions
Risperidone-induced Hyperprolactinemia
Interventions
Calcium and Vitamin D, Placebo
Drug · Other
Lead sponsor
Chadi A. Calarge
Other
Eligibility
5 Years to 17 Years · Male only
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
Iowa City, Iowa
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Aripiprazole, Olanzapine, Paliperidone, Quetiapine, Risperidone
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 70 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
3
States / cities
Torrance, California • Kissimmee, Florida • Conshohocken, Pennsylvania