{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Quetiapine%2FSeroquel&page=3", "query": { "intervention": "Quetiapine/Seroquel", "page": 3 }, "page_size": 10 }, "pagination": { "page": 3, "page_size": 10, "total_count": 116, "total_pages": 12, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Quetiapine%2FSeroquel&page=4&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Quetiapine%2FSeroquel&page=2&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-05T07:45:35.686Z", "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": "NCT00743366", "title": "Effect of Quetiapine on Marijuana Withdrawal and Relapse", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Marijuana Smoking" ], "interventions": [ { "name": "Marijuana", "type": "DRUG" }, { "name": "Quetiapine", "type": "DRUG" }, { "name": "Placebo oral capsule", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "New York State Psychiatric Institute", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "21 Years", "maximum_age": "45 Years", "sex": "ALL", "summary": "21 Years to 45 Years" }, "enrollment_count": 20, "start_date": "2008-08", "completion_date": "2009-03", "has_results": true, "last_update_posted_date": "2017-08-18", "last_synced_at": "2026-10-05T07:45:35.686Z", "location_count": 1, "location_summary": "New York, New York", "locations": [ { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT00743366" }, { "nct_id": "NCT00326105", "title": "Efficacy and Safety of Quetiapine Fumarate Sustained Release (SEROQUEL SR) in Combination With an Antidepressant in the Treatment of Major Depressive Disorders", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Major Depressive Disorder" ], "interventions": [ { "name": "Quetiapine fumarate", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "AstraZeneca", "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": "2006-04", "completion_date": "2007-07", "has_results": false, "last_update_posted_date": "2009-03-25", "last_synced_at": "2026-10-05T07:45:35.686Z", "location_count": 56, "location_summary": "Phoenix, Arizona • El Centro, California • Irvine, California + 53 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "El Centro", "state": "California" }, { "city": "Irvine", "state": "California" }, { "city": "Oceanside", "state": "California" }, { "city": "San Diego", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00326105" }, { "nct_id": "NCT01526148", "title": "Gao Bipolar Spectrum Lithium/Quetiapine Study", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Bipolar Disorder" ], "interventions": [ { "name": "Lithium", "type": "DRUG" }, { "name": "Quetiapine", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University Hospitals Cleveland Medical Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 42, "start_date": "2012-01", "completion_date": "2015-01", "has_results": true, "last_update_posted_date": "2017-08-16", "last_synced_at": "2026-10-05T07:45:35.686Z", "location_count": 1, "location_summary": "Cleveland, Ohio", "locations": [ { "city": "Cleveland", "state": "Ohio" } ], "official_url": "https://clinicaltrials.gov/study/NCT01526148" }, { "nct_id": "NCT00320268", "title": "Safety & Efficacy Study of Quetiapine Fumarate (SEROQUEL®) vs. Placebo in Major Depressive Disorder", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Major Depressive Disorder" ], "interventions": [ { "name": "Quetiapine fumarate", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "AstraZeneca", "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": 600, "start_date": "2006-04", "completion_date": "2007-05", "has_results": false, "last_update_posted_date": "2009-03-25", "last_synced_at": "2026-10-05T07:45:35.686Z", "location_count": 37, "location_summary": "Little Rock, Arkansas • Newport Beach, California • Northridge, California + 34 more", "locations": [ { "city": "Little Rock", "state": "Arkansas" }, { "city": "Newport Beach", "state": "California" }, { "city": "Northridge", "state": "California" }, { "city": "Oceanside", "state": "California" }, { "city": "Santa Ana", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00320268" }, { "nct_id": "NCT02893371", "title": "Longitudinal Comparative Effectiveness of Bipolar Disorder Therapies", "overall_status": "TERMINATED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Bipolar Disorder" ], "interventions": [ { "name": "Lithium Carbonate", "type": "DRUG" }, { "name": "Lamotrigine", "type": "DRUG" }, { "name": "Valproic Acid", "type": "DRUG" }, { "name": "Oxcarbazepine", "type": "DRUG" }, { "name": "Carbamazepine", "type": "DRUG" }, { "name": "Ziprasidone", "type": "DRUG" }, { "name": "Risperidone", "type": "DRUG" }, { "name": "Quetiapine", "type": "DRUG" }, { "name": "Olanzapine", "type": "DRUG" }, { "name": "Aripiprazole", "type": "DRUG" }, { "name": "Fluoxetine / Olanzapine", "type": "DRUG" }, { "name": "Haloperidol", "type": "DRUG" }, { "name": "Perphenazine", "type": "DRUG" }, { "name": "Clozapine", "type": "DRUG" }, { "name": "Asenapine", "type": "DRUG" }, { "name": "Lurasidone", "type": "DRUG" }, { "name": "Paliperidone", "type": "DRUG" }, { "name": "Mirtazapine", "type": "DRUG" }, { "name": "Bupropion", "type": "DRUG" }, { "name": "Desvenlafaxine", "type": "DRUG" }, { "name": "Duloxetine", "type": "DRUG" }, { "name": "Venlafaxine", "type": "DRUG" }, { "name": "Citalopram", "type": "DRUG" }, { "name": "Escitalopram", "type": "DRUG" }, { "name": "Fluoxetine", "type": "DRUG" }, { "name": "Fluvoxamine", "type": "DRUG" }, { "name": "Paroxetine", "type": "DRUG" }, { "name": "Sertraline", "type": "DRUG" }, { "name": "Vilazodone", "type": "DRUG" }, { "name": "Doxepin", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of New Mexico", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": null, "sex": "ALL", "summary": "Not listed" }, "enrollment_count": 1037352, "start_date": "2016-09", "completion_date": "2019-06-30", "has_results": false, "last_update_posted_date": "2024-03-12", "last_synced_at": "2026-10-05T07:45:35.686Z", "location_count": 1, "location_summary": "Albuquerque, New Mexico", "locations": [ { "city": "Albuquerque", "state": "New Mexico" } ], "official_url": "https://clinicaltrials.gov/study/NCT02893371" }, { "nct_id": "NCT00314184", "title": "Quetiapine Fumarate Bipolar Maintenance Monotherapy", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Bipolar Disorder" ], "interventions": [ { "name": "quetiapine fumarate", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "AstraZeneca", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 1255, "start_date": "2005-03", "completion_date": "2007-07", "has_results": false, "last_update_posted_date": "2008-12-22", "last_synced_at": "2026-10-05T07:45:35.686Z", "location_count": 30, "location_summary": "Cerritos, California • San Diego, California • Santa Ana, California + 27 more", "locations": [ { "city": "Cerritos", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "Santa Ana", "state": "California" }, { "city": "Washington D.C.", "state": "District of Columbia" }, { "city": "Gainesville", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT00314184" }, { "nct_id": "NCT03872596", "title": "Trial to Assess the Bioavailability of Quetiapine Versus Seroquel® in Subjects With Schizophrenia or Bipolar Disorder", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Bipolar Disorder", "Schizophrenia" ], "interventions": [ { "name": "Seroquel IR 300mg", "type": "DRUG" }, { "name": "Seroquel IR 25mg", "type": "DRUG" }, { "name": "Quetiapine Formulation A 300mg", "type": "DRUG" }, { "name": "Quetiapine Formulation B 300mg", "type": "DRUG" }, { "name": "Quetiapine Formulation 25mg", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Otsuka Pharmaceutical Development & Commercialization, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "45 Years", "sex": "ALL", "summary": "18 Years to 45 Years" }, "enrollment_count": 58, "start_date": "2019-03-27", "completion_date": "2019-11-27", "has_results": false, "last_update_posted_date": "2020-09-02", "last_synced_at": "2026-10-05T07:45:35.686Z", "location_count": 1, "location_summary": "Long Beach, California", "locations": [ { "city": "Long Beach", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT03872596" }, { "nct_id": "NCT00183443", "title": "Treatment of Mania Symptoms With Drug Therapy", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Bipolar Disorder", "Schizophrenia" ], "interventions": [ { "name": "Divalproex-extended release (DVP-ER)", "type": "DRUG" }, { "name": "Lithium", "type": "DRUG" }, { "name": "Quetiapine", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Palo Alto Veterans Institute for Research", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "18 Years to 65 Years" }, "enrollment_count": 75, "start_date": "2005-02", "completion_date": "2010-11", "has_results": true, "last_update_posted_date": "2018-07-17", "last_synced_at": "2026-10-05T07:45:35.686Z", "location_count": 1, "location_summary": "Palo Alto, California", "locations": [ { "city": "Palo Alto", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00183443" }, { "nct_id": "NCT00434876", "title": "The Effects of Quetiapine (Seroquel XR) on Sleep During Alcohol Abstinence", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Alcoholism", "Sleep Initiation and Maintenance Disorders" ], "interventions": [ { "name": "Quetiapine XR", "type": "DRUG" }, { "name": "Placebo.", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Subhajit Chakravorty", "sponsor_class": "FED", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "18 Years to 65 Years" }, "enrollment_count": 22, "start_date": "2007-08", "completion_date": "2009-12", "has_results": true, "last_update_posted_date": "2013-08-09", "last_synced_at": "2026-10-05T07:45:35.686Z", "location_count": 1, "location_summary": "Philadelphia, Pennsylvania", "locations": [ { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT00434876" }, { "nct_id": "NCT01224067", "title": "Adjunctive Quetiapine in the Treatment of Refractory Social Anxiety Disorder in Adults", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Social Anxiety Disorder" ], "interventions": [ { "name": "Quetiapine", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Cambridge Health Alliance", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "18 Years to 65 Years" }, "enrollment_count": 40, "start_date": "2006-03", "completion_date": "2008-10", "has_results": false, "last_update_posted_date": "2017-04-18", "last_synced_at": "2026-10-05T07:45:35.686Z", "location_count": 1, "location_summary": "Cambridge, Massachusetts", "locations": [ { "city": "Cambridge", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT01224067" } ] }