{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Seroquel",
    "query": {
      "intervention": "Seroquel"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 173,
    "total_pages": 18,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Seroquel&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T21:58:05.900Z",
  "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": "NCT04373317",
      "title": "Pimavanserin vs. Quetiapine for Treatment of Parkinson's Psychosis",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Parkinson's Disease Psychosis"
      ],
      "interventions": [
        {
          "name": "Pimavanserin",
          "type": "DRUG"
        },
        {
          "name": "Quetiapine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 358,
      "start_date": "2022-10-24",
      "completion_date": "2028-08-24",
      "has_results": false,
      "last_update_posted_date": "2026-08-19",
      "last_synced_at": "2026-09-02T21:58:05.900Z",
      "location_count": 24,
      "location_summary": "Tucson, Arizona • Loma Linda, California • Palo Alto, California + 20 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "West Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04373317"
    },
    {
      "nct_id": "NCT00061802",
      "title": "Efficacy and Safety of Two Atypical Antipsychotics vs. Placebo in Patients With an Acute Exacerbation of Either Schizophrenia or Schizoaffective Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Schizophrenia",
        "Schizoaffective Disorder"
      ],
      "interventions": [
        {
          "name": "risperidone, quetiapine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johnson & Johnson Pharmaceutical Research & Development, L.L.C.",
      "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": 225,
      "start_date": "2003-06",
      "completion_date": "2004-02",
      "has_results": false,
      "last_update_posted_date": "2012-02-07",
      "last_synced_at": "2026-09-02T21:58:05.900Z",
      "location_count": 7,
      "location_summary": "San Diego, California • Hoffman Est, Illinois • Lake Charles, Louisiana + 4 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Hoffman Est",
          "state": "Illinois"
        },
        {
          "city": "Lake Charles",
          "state": "Louisiana"
        },
        {
          "city": "Jackson",
          "state": "Mississippi"
        },
        {
          "city": "Visakhapatnam",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00061802"
    },
    {
      "nct_id": "NCT00330863",
      "title": "Preventing Relapse in Schizophrenia: Oral Antipsychotics Compared To Injectables: Evaluating Efficacy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Schizophrenia",
        "Schizoaffective Disorder"
      ],
      "interventions": [
        {
          "name": "Risperidone microspheres",
          "type": "DRUG"
        },
        {
          "name": "Risperidone",
          "type": "DRUG"
        },
        {
          "name": "Olanzapine",
          "type": "DRUG"
        },
        {
          "name": "Quetiapine",
          "type": "DRUG"
        },
        {
          "name": "Ziprasidone",
          "type": "DRUG"
        },
        {
          "name": "Aripiprazole",
          "type": "DRUG"
        },
        {
          "name": "Paliperidone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Northwell Health",
      "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": 357,
      "start_date": "2006-05",
      "completion_date": "2011-01",
      "has_results": true,
      "last_update_posted_date": "2018-07-10",
      "last_synced_at": "2026-09-02T21:58:05.900Z",
      "location_count": 8,
      "location_summary": "Los Angeles, California • Augusta, Georgia • Iowa City, Iowa + 5 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Fall River",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00330863"
    },
    {
      "nct_id": "NCT05542264",
      "title": "A Clinical Study That Will Assess the Effect of SEP-363856 or Prior Antipsychotic (PA) Standard of Care on Body-weight Associated Parameters in Subjects With Schizophrenia",
      "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": 19,
      "start_date": "2022-11-15",
      "completion_date": "2024-02-12",
      "has_results": false,
      "last_update_posted_date": "2024-06-26",
      "last_synced_at": "2026-09-02T21:58:05.900Z",
      "location_count": 4,
      "location_summary": "Little Rock, Arkansas • Rogers, Arkansas • Dayton, Ohio + 1 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Rogers",
          "state": "Arkansas"
        },
        {
          "city": "Dayton",
          "state": "Ohio"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05542264"
    },
    {
      "nct_id": "NCT00617396",
      "title": "Open Label Seroquel (Quetiapine) Study for Treatment Resistant Functional Bowel Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Functional Bowel Disorders"
      ],
      "interventions": [
        {
          "name": "Quetiapine (50 mg/day-100mg/day)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "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": 25,
      "start_date": "2008-02",
      "completion_date": "2012-05",
      "has_results": true,
      "last_update_posted_date": "2017-09-15",
      "last_synced_at": "2026-09-02T21:58:05.900Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00617396"
    },
    {
      "nct_id": "NCT00584688",
      "title": "A Double Blind, Placebo Controlled Trial of Quetiapine in Anorexia Nervosa, a Dual Site Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anorexia Nervosa"
      ],
      "interventions": [
        {
          "name": "quetiapine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of South Florida",
      "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": 24,
      "start_date": "2007-02",
      "completion_date": "2009-08",
      "has_results": false,
      "last_update_posted_date": "2012-06-18",
      "last_synced_at": "2026-09-02T21:58:05.900Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00584688"
    },
    {
      "nct_id": "NCT00746421",
      "title": "Quetiapine XR for Cognitive and Functional Disability in Clinically Stable Patients With Bipolar Disorder",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Bipolar Disorder",
        "Cognitive Impairment"
      ],
      "interventions": [
        {
          "name": "Quetiapine XR",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emory University",
      "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": 32,
      "start_date": "2010-01",
      "completion_date": "2012-04",
      "has_results": true,
      "last_update_posted_date": "2014-04-17",
      "last_synced_at": "2026-09-02T21:58:05.900Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia • Durham, North Carolina",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00746421"
    },
    {
      "nct_id": "NCT00156715",
      "title": "Efficacy of Quetiapine in the Treatment of Patients With Schizophrenia and a Comorbid Substance Use Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Schizophrenia",
        "Schizoaffective Disorder",
        "Psychotic Disorder",
        "Substance Abuse",
        "Alcohol Abuse"
      ],
      "interventions": [
        {
          "name": "Quetiapine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Dartmouth-Hitchcock Medical Center",
      "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": 23,
      "start_date": "2004-03",
      "completion_date": "2008-10",
      "has_results": true,
      "last_update_posted_date": "2018-03-14",
      "last_synced_at": "2026-09-02T21:58:05.900Z",
      "location_count": 4,
      "location_summary": "Augusta, Georgia • Lebanon, New Hampshire • Manchester, New Hampshire",
      "locations": [
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        },
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        },
        {
          "city": "Manchester",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00156715"
    },
    {
      "nct_id": "NCT00422123",
      "title": "Phase 3 /Seroquel SR Acute Mania Monotherapy - US",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Affective Psychosis, Bipolar",
        "Manic Disorder",
        "Manic-Depressive Psychosis",
        "Mania",
        "Manic State",
        "Psychoses, Manic-Depressive"
      ],
      "interventions": [
        {
          "name": "Quetiapine fumarate (Seroquel) SR",
          "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": 447,
      "start_date": "2007-01",
      "completion_date": "2007-07",
      "has_results": false,
      "last_update_posted_date": "2009-03-25",
      "last_synced_at": "2026-09-02T21:58:05.900Z",
      "location_count": 51,
      "location_summary": "Phoenix, Arizona • Little Rock, Arkansas • Cerritos, California + 48 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Cerritos",
          "state": "California"
        },
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "Oceanside",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00422123"
    },
    {
      "nct_id": "NCT00771134",
      "title": "Efficacy and Safety of Lu AA39959 in Patients With Bipolar Depression",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Bipolar Disorder"
      ],
      "interventions": [
        {
          "name": "Lu AA39959",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Quetiapine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "H. Lundbeck A/S",
      "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": 105,
      "start_date": "2008-12",
      "completion_date": "2009-08",
      "has_results": false,
      "last_update_posted_date": "2014-05-28",
      "last_synced_at": "2026-09-02T21:58:05.900Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00771134"
    }
  ]
}