{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Comparison+of+Risperidone+and+Aripiprazole", "query": { "intervention": "Comparison of Risperidone and Aripiprazole" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 11, "total_pages": 2, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Comparison+of+Risperidone+and+Aripiprazole&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-10-04T20:58:23.580Z", "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": "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": "2026-10-04T20:58:23.580Z", "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": "NCT07703670", "title": "MicroRNAs as Biomarkers in First Episode Schizophrenia", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Schizophrenia Disorder", "Schizophreniform Disorder", "Schizoaffective Disorder", "Psychosis Not Otherwise Specified (NOS)" ], "interventions": [ { "name": "Plasma NDE miRNA Sequencing", "type": "DIAGNOSTIC_TEST" }, { "name": "Whole Genome Sequencing", "type": "GENETIC" } ], "intervention_types": [ "DIAGNOSTIC_TEST", "GENETIC" ], "sponsor": "Northwell Health", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "15 Years", "maximum_age": "40 Years", "sex": "ALL", "summary": "15 Years to 40 Years" }, "enrollment_count": 160, "start_date": "2026-07-01", "completion_date": "2031-05-01", "has_results": false, "last_update_posted_date": "2026-07-14", "last_synced_at": "2026-10-04T20:58:23.580Z", "location_count": 1, "location_summary": "Glen Oaks, New York", "locations": [ { "city": "Glen Oaks", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT07703670" }, { "nct_id": "NCT02431702", "title": "A Study to Compare Disease Progression and Modification Following Treatment With Paliperidone Palmitate Long-Acting Injection or Oral Antipsychotics in Participant's With Recent-onset Schizophrenia or Schizophreniform", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Schizophrenia", "Psychotic Disorders" ], "interventions": [ { "name": "Aripiprazole", "type": "DRUG" }, { "name": "Haloperidol", "type": "DRUG" }, { "name": "Olanzapine", "type": "DRUG" }, { "name": "Oral Paliperidone ER", "type": "DRUG" }, { "name": "Perphenazine", "type": "DRUG" }, { "name": "Quetiapine", "type": "DRUG" }, { "name": "Oral Risperidone", "type": "DRUG" }, { "name": "Paliperidone Palmitate Injection (PP1M)", "type": "DRUG" }, { "name": "Paliperidone Palmitate Injection (PP3M)", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Janssen Scientific Affairs, LLC", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "35 Years", "sex": "ALL", "summary": "18 Years to 35 Years" }, "enrollment_count": 337, "start_date": "2015-07-08", "completion_date": "2019-11-12", "has_results": true, "last_update_posted_date": "2025-04-29", "last_synced_at": "2026-10-04T20:58:23.580Z", "location_count": 34, "location_summary": "Little Rock, Arkansas • Garden Grove, California • Lemon Grove, California + 31 more", "locations": [ { "city": "Little Rock", "state": "Arkansas" }, { "city": "Garden Grove", "state": "California" }, { "city": "Lemon Grove", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "San Diego", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT02431702" }, { "nct_id": "NCT00573716", "title": "Comparison of Bone Mineral Density Changes During Tx With Risperidone or Aripiprazole in Adolescents", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Psychiatry" ], "interventions": [], "intervention_types": [], "sponsor": "Creighton University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "11 Years", "maximum_age": "17 Years", "sex": "ALL", "summary": "11 Years to 17 Years" }, "enrollment_count": 60, "start_date": "2006-10", "completion_date": "2009-10", "has_results": false, "last_update_posted_date": "2011-08-04", "last_synced_at": "2026-10-04T20:58:23.580Z", "location_count": 1, "location_summary": "Omaha, Nebraska", "locations": [ { "city": "Omaha", "state": "Nebraska" } ], "official_url": "https://clinicaltrials.gov/study/NCT00573716" }, { "nct_id": "NCT00320671", "title": "Comparison of Aripiprazole and Risperidone for the Treatment of People With First-Episode Psychosis", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Schizophrenia" ], "interventions": [ { "name": "Aripiprazole", "type": "DRUG" }, { "name": "Risperidone", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Northwell Health", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "15 Years", "maximum_age": "40 Years", "sex": "ALL", "summary": "15 Years to 40 Years" }, "enrollment_count": 198, "start_date": "2005-12", "completion_date": "2015-12", "has_results": true, "last_update_posted_date": "2016-09-08", "last_synced_at": "2026-10-04T20:58:23.580Z", "location_count": 1, "location_summary": "Glen Oaks, New York", "locations": [ { "city": "Glen Oaks", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT00320671" }, { "nct_id": "NCT04903353", "title": "Pragmatic Trial Comparing Weight Gain in Children With Autism Taking Risperidone Versus Aripiprazole", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Weight Gain", "Autism Spectrum Disorder", "Medication Side Effect" ], "interventions": [ { "name": "Comparison of Risperidone and Aripiprazole", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Vanderbilt University Medical Center", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": null, "maximum_age": "17 Years", "sex": "ALL", "summary": "Up to 17 Years" }, "enrollment_count": 30, "start_date": "2022-02-01", "completion_date": "2025-12-01", "has_results": false, "last_update_posted_date": "2026-04-13", "last_synced_at": "2026-10-04T20:58:23.580Z", "location_count": 1, "location_summary": "Nashville, Tennessee", "locations": [ { "city": "Nashville", "state": "Tennessee" } ], "official_url": "https://clinicaltrials.gov/study/NCT04903353" }, { "nct_id": "NCT02191358", "title": "YouScript IMPACT Registry", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Adverse Drug Events", "Adverse Drug Reactions", "Drug Interaction Potentiation", "Drug Metabolism, Poor, CYP2D6-RELATED", "Drug Metabolism, Poor, CYP2C19-RELATED", "Cytochrome P450 Enzyme Deficiency", "Cytochrome P450 CYP2D6 Enzyme Deficiency", "Cytochrome P450 CYP2C9 Enzyme Deficiency", "Cytochrome P450 CYP2C19 Enzyme Deficiency", "Cytochrome P450 CYP3A Enzyme Deficiency", "Poor Metabolizer Due to Cytochrome P450 CYP2C9 Variant", "Poor Metabolizer Due to Cytochrome P450 CYP2C19 Variant", "Poor Metabolizer Due to Cytochrome P450 CYP2D6 Variant" ], "interventions": [], "intervention_types": [], "sponsor": "Genelex Corporation", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "65 Years", "maximum_age": null, "sex": "ALL", "summary": "65 Years and older" }, "enrollment_count": 800, "start_date": "2014-10", "completion_date": "2015-08", "has_results": false, "last_update_posted_date": "2017-03-01", "last_synced_at": "2026-10-04T20:58:23.580Z", "location_count": 7, "location_summary": "Garden Grove, California • Denver, Colorado • Lexington, Kentucky + 3 more", "locations": [ { "city": "Garden Grove", "state": "California" }, { "city": "Denver", "state": "Colorado" }, { "city": "Lexington", "state": "Kentucky" }, { "city": "Towson", "state": "Maryland" }, { "city": "Fall River", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT02191358" }, { "nct_id": "NCT00466310", "title": "Metabolic Signatures and Biomarkers in Schizophrenia", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Schizophrenia" ], "interventions": [ { "name": "Aripiprazole", "type": "DRUG" }, { "name": "Risperidone", "type": "DRUG" }, { "name": "Healthy volunteers", "type": "OTHER" } ], "intervention_types": [ "DRUG", "OTHER" ], "sponsor": "Duke University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "60 Years", "sex": "ALL", "summary": "18 Years to 60 Years" }, "enrollment_count": 71, "start_date": "2007-02", "completion_date": "2011-01", "has_results": true, "last_update_posted_date": "2014-07-25", "last_synced_at": "2026-10-04T20:58:23.580Z", "location_count": 1, "location_summary": "Butner, North Carolina", "locations": [ { "city": "Butner", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT00466310" }, { "nct_id": "NCT01052103", "title": "A Study of LY2140023 in Schizophrenia Patients With Prominent Negative Symptoms", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Schizophrenia" ], "interventions": [ { "name": "LY2140023", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" }, { "name": "Standard of Care", "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": 167, "start_date": "2010-01", "completion_date": "2012-06", "has_results": true, "last_update_posted_date": "2022-09-07", "last_synced_at": "2026-10-04T20:58:23.580Z", "location_count": 4, "location_summary": "Garden Grove, California • Chicago, Illinois • Hoffman Estates, Illinois + 1 more", "locations": [ { "city": "Garden Grove", "state": "California" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Hoffman Estates", "state": "Illinois" }, { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT01052103" }, { "nct_id": "NCT00177164", "title": "Risperdal Consta for Bipolar Disorder", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Bipolar I Disorder" ], "interventions": [ { "name": "Injectable Risperidone (Consta) or oral antipsychotic", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of Pittsburgh", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "70 Years", "sex": "ALL", "summary": "18 Years to 70 Years" }, "enrollment_count": 50, "start_date": "2003-11", "completion_date": "2009-12", "has_results": true, "last_update_posted_date": "2016-04-19", "last_synced_at": "2026-10-04T20:58:23.580Z", "location_count": 4, "location_summary": "Bridgeville, Pennsylvania • DuBois, Pennsylvania • McKeesport, Pennsylvania + 1 more", "locations": [ { "city": "Bridgeville", "state": "Pennsylvania" }, { "city": "DuBois", "state": "Pennsylvania" }, { "city": "McKeesport", "state": "Pennsylvania" }, { "city": "Pittsburgh", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT00177164" } ] }