{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=risperidone+%28Risperdal%29",
    "query": {
      "intervention": "risperidone (Risperdal)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 101,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=risperidone+%28Risperdal%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-24T15:48:21.089Z",
  "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": "NCT01844700",
      "title": "1/2-MC4R Genotype and Pediatric Antipsychotic Drug- Induced Weight Gain",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "High Risk MC4R Genotype",
        "Low Risk MC4R Genotype",
        "One Week or Less Antipsychotic Lifetime Exposure"
      ],
      "interventions": [
        {
          "name": "Ziprasidone",
          "type": "DRUG"
        },
        {
          "name": "aripiprazole, quetiapine, or risperidone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Northwell Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "13 Years to 18 Years"
      },
      "enrollment_count": 14,
      "start_date": "2013-07",
      "completion_date": "2014-04",
      "has_results": true,
      "last_update_posted_date": "2016-02-05",
      "last_synced_at": "2026-09-24T15:48:21.089Z",
      "location_count": 1,
      "location_summary": "Glen Oaks, New York",
      "locations": [
        {
          "city": "Glen Oaks",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01844700"
    },
    {
      "nct_id": "NCT04587115",
      "title": "Reducing the Abuse Liability of Prescription Opioids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Addiction"
      ],
      "interventions": [
        {
          "name": "Risperidone",
          "type": "DRUG"
        },
        {
          "name": "Ziprasidone",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The University of Texas Health Science Center at San Antonio",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 15,
      "start_date": "2017-06-16",
      "completion_date": "2020-01-01",
      "has_results": false,
      "last_update_posted_date": "2020-10-14",
      "last_synced_at": "2026-09-24T15:48:21.089Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04587115"
    },
    {
      "nct_id": "NCT00205699",
      "title": "Metabolic Effects of Antipsychotics in Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Aggression",
        "Attention Deficit-Hyperactivity",
        "Oppositional Defiant Disorder",
        "Pervasive Development Disorders",
        "Bipolar Disorder"
      ],
      "interventions": [
        {
          "name": "risperidone",
          "type": "DRUG"
        },
        {
          "name": "olanzapine",
          "type": "DRUG"
        },
        {
          "name": "aripiprazole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "6 Years to 18 Years"
      },
      "enrollment_count": 144,
      "start_date": "2006-04",
      "completion_date": "2011-07",
      "has_results": true,
      "last_update_posted_date": "2018-06-15",
      "last_synced_at": "2026-09-24T15:48:21.089Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00205699"
    },
    {
      "nct_id": "NCT00571688",
      "title": "Does Risperidone Consta Reduce Relapse and Rehospitalization in Bipolar Disorder?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Bipolar Disorder"
      ],
      "interventions": [
        {
          "name": "Risperdal (risperidone) Consta",
          "type": "DRUG"
        },
        {
          "name": "Treatment as usual",
          "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": 50,
      "start_date": "2007-11",
      "completion_date": "2009-02",
      "has_results": true,
      "last_update_posted_date": "2017-07-31",
      "last_synced_at": "2026-09-24T15:48:21.089Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00571688"
    },
    {
      "nct_id": "NCT00352196",
      "title": "Janssen Asperger's MRS (Magnetic Resonance Spectroscopy Risperidone Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Asperger's Disorder"
      ],
      "interventions": [
        {
          "name": "Risperidone",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Spectroscopy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Augusta University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Years and older"
      },
      "enrollment_count": 23,
      "start_date": "2001-11",
      "completion_date": "2007-05",
      "has_results": false,
      "last_update_posted_date": "2015-01-14",
      "last_synced_at": "2026-09-24T15:48:21.089Z",
      "location_count": 1,
      "location_summary": "Augusta, Georgia",
      "locations": [
        {
          "city": "Augusta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00352196"
    },
    {
      "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": "2026-09-24T15:48:21.089Z",
      "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": "NCT00314613",
      "title": "Functional Brain Imaging and Employment in First-Episode Psychotic Patients Treated With Risperdal",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "Antipsychotic/Risperidone Consta",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 30,
      "start_date": "2006-04",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2017-12-02",
      "last_synced_at": "2026-09-24T15:48:21.089Z",
      "location_count": 2,
      "location_summary": "Butner, North Carolina • Durham, North Carolina",
      "locations": [
        {
          "city": "Butner",
          "state": "North Carolina"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00314613"
    },
    {
      "nct_id": "NCT01913327",
      "title": "Antipsychotic Effects on Brain Function in Schizophrenia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Schizophrenia",
        "Schizoaffective Disorder",
        "Schizophreniform Disorder"
      ],
      "interventions": [
        {
          "name": "Aripiprazole",
          "type": "DRUG"
        },
        {
          "name": "Risperidone",
          "type": "DRUG"
        },
        {
          "name": "Modafinil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 4,
      "start_date": "2013-04",
      "completion_date": "2017-01",
      "has_results": true,
      "last_update_posted_date": "2020-04-20",
      "last_synced_at": "2026-09-24T15:48:21.089Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01913327"
    },
    {
      "nct_id": "NCT00584701",
      "title": "Pharmacogenomics in Autism Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Autism"
      ],
      "interventions": [
        {
          "name": "Risperidone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "4 Years to 18 Years"
      },
      "enrollment_count": 49,
      "start_date": "2008-01",
      "completion_date": "2009-05",
      "has_results": true,
      "last_update_posted_date": "2012-07-24",
      "last_synced_at": "2026-09-24T15:48:21.089Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00584701"
    },
    {
      "nct_id": "NCT00794625",
      "title": "Effectiveness of Combined Medication Treatment for Aggression in Children With Attention Deficit With Hyperactivity Disorder (The SPICY Study)",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Attention Deficit Disorder With Hyperactivity"
      ],
      "interventions": [
        {
          "name": "Valproate",
          "type": "DRUG"
        },
        {
          "name": "Risperidone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Stimulant medication",
          "type": "DRUG"
        },
        {
          "name": "Behavioral family counseling",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "Joseph Blader",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "6 Years to 12 Years"
      },
      "enrollment_count": 270,
      "start_date": "2008-11",
      "completion_date": "2013-04",
      "has_results": false,
      "last_update_posted_date": "2012-07-16",
      "last_synced_at": "2026-09-24T15:48:21.089Z",
      "location_count": 3,
      "location_summary": "Glen Oaks, New York • Stony Brook, New York • San Antonio, Texas",
      "locations": [
        {
          "city": "Glen Oaks",
          "state": "New York"
        },
        {
          "city": "Stony Brook",
          "state": "New York"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00794625"
    }
  ]
}