{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Risperidone%2C+Olanzapine", "query": { "intervention": "Risperidone, Olanzapine" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 74, "total_pages": 8, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Risperidone%2C+Olanzapine&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-10-03T23:16:56.647Z", "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.", "notes": [ "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.", "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.", "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees." ], "trials": [ { "nct_id": "NCT00845026", "title": "A Safety Study Comparing LY2140023 to Atypical Antipsychotic Standard Treatment in Schizophrenic Patients", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Schizophrenia" ], "interventions": [ { "name": "LY2140023", "type": "DRUG" }, { "name": "aripiprazole", "type": "DRUG" }, { "name": "olanzapine", "type": "DRUG" }, { "name": "risperidone", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Denovo Biopharma LLC", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "18 Years to 65 Years" }, "enrollment_count": 261, "start_date": "2009-03", "completion_date": "2010-12", "has_results": true, "last_update_posted_date": "2022-11-08", "last_synced_at": "2026-10-03T23:16:56.647Z", "location_count": 11, "location_summary": "Escondido, California • Garden Grove, California • Washington D.C., District of Columbia + 8 more", "locations": [ { "city": "Escondido", "state": "California" }, { "city": "Garden Grove", "state": "California" }, { "city": "Washington D.C.", "state": "District of Columbia" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Hoffman Estates", "state": "Illinois" } ], "official_url": "https://clinicaltrials.gov/study/NCT00845026" }, { "nct_id": "NCT00048802", "title": "Treatment and Outcome of Early Onset Bipolar Disorder", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Bipolar Disorder" ], "interventions": [ { "name": "Lithium", "type": "DRUG" }, { "name": "Olanzapine", "type": "DRUG" }, { "name": "Divalproex", "type": "DRUG" }, { "name": "Risperidone", "type": "DRUG" }, { "name": "Quetiapine", "type": "DRUG" }, { "name": "Ziprasidone", "type": "DRUG" }, { "name": "Aripriprazole", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Northwell Health", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "10 Years", "maximum_age": "18 Years", "sex": "ALL", "summary": "10 Years to 18 Years" }, "enrollment_count": 40, "start_date": "2002-08", "completion_date": "2006-08", "has_results": false, "last_update_posted_date": "2014-01-22", "last_synced_at": "2026-10-03T23:16:56.647Z", "location_count": 1, "location_summary": "Glen Oaks, New York", "locations": [ { "city": "Glen Oaks", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT00048802" }, { "nct_id": "NCT05402111", "title": "A Clinical Study That Will Assess How Food Moves Through the Stomach and Effects Blood Glucose Levels in Subjects With Schizophrenia Taking SEP-363856 or and Prior Antipsychotic (PA) Standard", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Schizophrenia" ], "interventions": [ { "name": "SEP-363856", "type": "DRUG" }, { "name": "Prior antipsychotic (risperidone, olanzapine, quetiapine or aripiprazole)", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Otsuka Pharmaceutical Development & Commercialization, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "18 Years to 65 Years" }, "enrollment_count": 31, "start_date": "2022-06-13", "completion_date": "2023-09-27", "has_results": false, "last_update_posted_date": "2024-06-26", "last_synced_at": "2026-10-03T23:16:56.647Z", "location_count": 7, "location_summary": "Little Rock, Arkansas • Rogers, Arkansas • Long Beach, California + 4 more", "locations": [ { "city": "Little Rock", "state": "Arkansas" }, { "city": "Rogers", "state": "Arkansas" }, { "city": "Long Beach", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "Hialeah", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT05402111" }, { "nct_id": "NCT01157351", "title": "15 Month Study for Adults Who Have Been Diagnosed With Schizophrenia and Incarcerated", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Schizophrenia" ], "interventions": [ { "name": "paliperidone", "type": "DRUG" }, { "name": "risperidone", "type": "DRUG" }, { "name": "haloperidole", "type": "DRUG" }, { "name": "perphenazine", "type": "DRUG" }, { "name": "aripiprazole", "type": "DRUG" }, { "name": "quetiapine", "type": "DRUG" }, { "name": "paliperidone palmitate", "type": "DRUG" }, { "name": "olanzapine", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Janssen Scientific Affairs, LLC", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "18 Years to 65 Years" }, "enrollment_count": 450, "start_date": "2010-05", "completion_date": "2013-12", "has_results": true, "last_update_posted_date": "2015-04-24", "last_synced_at": "2026-10-03T23:16:56.647Z", "location_count": 55, "location_summary": "Bullhead City, Arizona • Tuscon, Arizona • Little Rock, Arkansas + 52 more", "locations": [ { "city": "Bullhead City", "state": "Arizona" }, { "city": "Tuscon", "state": "Arizona" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "Anaheim", "state": "California" }, { "city": "Escondido", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01157351" }, { "nct_id": "NCT04002700", "title": "A Study to Assess Stroke Risk Among Users of Typical Versus Atypical Antipsychotics Stratified by Broad Age Group", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Stroke" ], "interventions": [ { "name": "Haloperidol", "type": "DRUG" }, { "name": "Typical Antipsychotics", "type": "DRUG" }, { "name": "Atypical Antipsychotics", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Janssen Research & Development, LLC", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 1234412, "start_date": "2019-05-06", "completion_date": "2019-05-31", "has_results": false, "last_update_posted_date": "2025-06-25", "last_synced_at": "2026-10-03T23:16:56.647Z", "location_count": 1, "location_summary": "Titusville, New Jersey", "locations": [ { "city": "Titusville", "state": "New Jersey" } ], "official_url": "https://clinicaltrials.gov/study/NCT04002700" }, { "nct_id": "NCT00179062", "title": "Effects of Risperidone and Olanzapine on Patients With Schizophrenia, Schizoaffective Disorder, Major Depression or Bipolar Disorder", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Schizophrenia", "Schizoaffective Disorder", "Depressive Disorder, Major", "Bipolar Disorder" ], "interventions": [ { "name": "olanzapine versus risperidone", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Vanderbilt University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "60 Years", "sex": "ALL", "summary": "18 Years to 60 Years" }, "enrollment_count": 300, "start_date": "2000-02", "completion_date": "2007-06", "has_results": false, "last_update_posted_date": "2008-08-26", "last_synced_at": "2026-10-03T23:16:56.647Z", "location_count": 1, "location_summary": "Nashville, Tennessee", "locations": [ { "city": "Nashville", "state": "Tennessee" } ], "official_url": "https://clinicaltrials.gov/study/NCT00179062" }, { "nct_id": "NCT00034892", "title": "CAFE Comparison of Atypicals in First Episode of Psychosis", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Schizophrenia", "Psychotic Disorders", "Mental Health", "Mental Disorders" ], "interventions": [ { "name": "Olanzapine, risperidone", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "AstraZeneca", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "16 Years", "maximum_age": "40 Years", "sex": "ALL", "summary": "16 Years to 40 Years" }, "enrollment_count": null, "start_date": "2002-03", "completion_date": "2005-03", "has_results": false, "last_update_posted_date": "2013-01-04", "last_synced_at": "2026-10-03T23:16:56.647Z", "location_count": 24, "location_summary": "Stanford, California • Miami, Florida • Atlanta, Georgia + 21 more", "locations": [ { "city": "Stanford", "state": "California" }, { "city": "Miami", "state": "Florida" }, { "city": "Atlanta", "state": "Georgia" }, { "city": "Augusta", "state": "Georgia" }, { "city": "Chicago", "state": "Illinois" } ], "official_url": "https://clinicaltrials.gov/study/NCT00034892" }, { "nct_id": "NCT00177567", "title": "Treatment of Geriatric Bipolar Mood Disorders: A Pilot Study", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Bipolar Disorder" ], "interventions": [ { "name": "lithium carbonate", "type": "DRUG" }, { "name": "Depakote-ER", "type": "DRUG" }, { "name": "risperidone", "type": "DRUG" }, { "name": "olanzapine", "type": "DRUG" }, { "name": "paroxetine", "type": "DRUG" }, { "name": "bupropion", "type": "DRUG" }, { "name": "lamotrigine", "type": "DRUG" }, { "name": "venlafaxine", "type": "DRUG" }, { "name": "tranylcypromine", "type": "DRUG" }, { "name": "mirtazapine", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of Pittsburgh", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "60 Years", "maximum_age": null, "sex": "ALL", "summary": "60 Years and older" }, "enrollment_count": 60, "start_date": "2001-07", "completion_date": "2004-01", "has_results": false, "last_update_posted_date": "2005-09-15", "last_synced_at": "2026-10-03T23:16:56.647Z", "location_count": 2, "location_summary": "Pittsburgh, Pennsylvania", "locations": [ { "city": "Pittsburgh", "state": "Pennsylvania" }, { "city": "Pittsburgh", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT00177567" }, { "nct_id": "NCT00034580", "title": "Olanzapine Versus Active Comparator in the Treatment of Bipolar I Disorder", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Bipolar Disorder" ], "interventions": [ { "name": "olanzapine", "type": "DRUG" }, { "name": "risperidone", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Eli Lilly and Company", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "70 Years", "sex": "ALL", "summary": "18 Years to 70 Years" }, "enrollment_count": 326, "start_date": "2001-08", "completion_date": "2002-08", "has_results": false, "last_update_posted_date": "2006-07-19", "last_synced_at": "2026-10-03T23:16:56.647Z", "location_count": 21, "location_summary": "Berkley, California • Los Angeles, California • Orange, California + 18 more", "locations": [ { "city": "Berkley", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "Orange", "state": "California" }, { "city": "San Marcos", "state": "California" }, { "city": "Torrance", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00034580" }, { "nct_id": "NCT00183625", "title": "Supported Employment and Skills Training in Conjunction With Pharmacotherapy in Schizophrenia Patients", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Schizophrenia" ], "interventions": [ { "name": "Individual Placement and Support (Supported Employment)", "type": "BEHAVIORAL" }, { "name": "Social Skills Training", "type": "BEHAVIORAL" }, { "name": "Olanzapine", "type": "DRUG" }, { "name": "Risperidone", "type": "DRUG" } ], "intervention_types": [ "BEHAVIORAL", "DRUG" ], "sponsor": "University of California, Los Angeles", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "60 Years", "sex": "ALL", "summary": "18 Years to 60 Years" }, "enrollment_count": 107, "start_date": "2000-06", "completion_date": "2006-09", "has_results": true, "last_update_posted_date": "2026-02-09", "last_synced_at": "2026-10-03T23:16:56.647Z", "location_count": 2, "location_summary": "Los Angeles, California • Manchester, New Hampshire", "locations": [ { "city": "Los Angeles", "state": "California" }, { "city": "Manchester", "state": "New Hampshire" } ], "official_url": "https://clinicaltrials.gov/study/NCT00183625" } ] }