{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=risperidone+%28RISPERDAL+CONSTA%29",
    "query": {
      "intervention": "risperidone (RISPERDAL CONSTA)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 97,
    "total_pages": 10,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=risperidone+%28RISPERDAL+CONSTA%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-24T06:28:05.743Z",
  "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": "NCT00203788",
      "title": "Improving Work Outcome in People With Recent-onset Schizophrenia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "Individual Placement and Support",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Workplace Fundamentals Module",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Brokered Vocational Rehabilitation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Oral risperidone",
          "type": "DRUG"
        },
        {
          "name": "Skills training group",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 87,
      "start_date": "1999-05",
      "completion_date": "2006-12",
      "has_results": false,
      "last_update_posted_date": "2013-07-30",
      "last_synced_at": "2026-09-24T06:28:05.743Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00203788"
    },
    {
      "nct_id": "NCT05179525",
      "title": "Comparative Bioavailability of Risperidone.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "Risperidone ISM® 100 mg",
          "type": "DRUG"
        },
        {
          "name": "Risperdal 4mg Tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rovi Pharmaceuticals Laboratories",
      "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": 80,
      "start_date": "2021-03-09",
      "completion_date": "2021-09-17",
      "has_results": false,
      "last_update_posted_date": "2022-01-05",
      "last_synced_at": "2026-09-24T06:28:05.743Z",
      "location_count": 4,
      "location_summary": "Garden Grove, California • Gaithersburg, Maryland • Berlin, New Jersey + 1 more",
      "locations": [
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "Gaithersburg",
          "state": "Maryland"
        },
        {
          "city": "Berlin",
          "state": "New Jersey"
        },
        {
          "city": "DeSoto",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05179525"
    },
    {
      "nct_id": "NCT00417482",
      "title": "Antipsychotic Discontinuation in Alzheimer's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Alzheimer Disease",
        "Psychotic Disorders",
        "Agitation",
        "Aggression"
      ],
      "interventions": [
        {
          "name": "risperidone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "New York State Psychiatric Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "50 Years to 95 Years"
      },
      "enrollment_count": 180,
      "start_date": "2004-08",
      "completion_date": "2011-04",
      "has_results": true,
      "last_update_posted_date": "2013-04-24",
      "last_synced_at": "2026-09-24T06:28:05.743Z",
      "location_count": 7,
      "location_summary": "Tuscaloosa, Alabama • Los Angeles, California • Norwalk, Connecticut + 3 more",
      "locations": [
        {
          "city": "Tuscaloosa",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Norwalk",
          "state": "Connecticut"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00417482"
    },
    {
      "nct_id": "NCT02087579",
      "title": "Parallel Group, Multiple Dose Pharmacokinetics Study of Five Antipsychotic Medications in Psychiatric Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Psychotic Disorders",
        "Schizophrenia",
        "Bipolar Disorder",
        "Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "Aripiprazole, oral formulation",
          "type": "DRUG"
        },
        {
          "name": "Olanzapine, oral formulation",
          "type": "DRUG"
        },
        {
          "name": "Paliperidone, oral formulation",
          "type": "DRUG"
        },
        {
          "name": "Paliperidone, LAI",
          "type": "DRUG"
        },
        {
          "name": "Quetiapine, oral formulation",
          "type": "DRUG"
        },
        {
          "name": "Risperidone, oral formulation",
          "type": "DRUG"
        },
        {
          "name": "Risperidone, LAI",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Janssen Research & Development, LLC",
      "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": 305,
      "start_date": "2014-02",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2015-10-29",
      "last_synced_at": "2026-09-24T06:28:05.743Z",
      "location_count": 6,
      "location_summary": "Garden Grove, California • Kissimmee, Florida • Atlanta, Georgia + 3 more",
      "locations": [
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "Kissimmee",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Hoffman Estates",
          "state": "Illinois"
        },
        {
          "city": "Cedarhurst",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02087579"
    },
    {
      "nct_id": "NCT00245206",
      "title": "Side Effects of Newer Antipsychotics in Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Schizophrenia",
        "Alzheimer's Disease",
        "Dementia"
      ],
      "interventions": [
        {
          "name": "Aripiprazole",
          "type": "DRUG"
        },
        {
          "name": "Olanzapine",
          "type": "DRUG"
        },
        {
          "name": "Risperidone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Veterans Medical Research Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 406,
      "start_date": "2005-08",
      "completion_date": "2010-10",
      "has_results": false,
      "last_update_posted_date": "2018-12-17",
      "last_synced_at": "2026-09-24T06:28:05.743Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00245206"
    },
    {
      "nct_id": "NCT00589914",
      "title": "Comparison of Paliperidone Palmitate and RISPERDAL CONSTA in Patients With Schizophrenia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "RISPERDAL CONSTA",
          "type": "DRUG"
        },
        {
          "name": "Paliperidone palmitate",
          "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": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1221,
      "start_date": "2007-03",
      "completion_date": "2009-06",
      "has_results": true,
      "last_update_posted_date": "2014-06-24",
      "last_synced_at": "2026-09-24T06:28:05.743Z",
      "location_count": 15,
      "location_summary": "Birmingham, Alabama • Little Rock, Arkansas • Cerritos, California + 12 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Cerritos",
          "state": "California"
        },
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00589914"
    },
    {
      "nct_id": "NCT01246765",
      "title": "National Pregnancy Registry for Psychiatric Medications",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pregnant Women",
        "Psychotropic Drugs"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 5000,
      "start_date": "2008-11",
      "completion_date": "2033-12",
      "has_results": false,
      "last_update_posted_date": "2025-10-24",
      "last_synced_at": "2026-09-24T06:28:05.743Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01246765"
    },
    {
      "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": "2026-09-24T06:28:05.743Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00571688"
    },
    {
      "nct_id": "NCT02109562",
      "title": "Randomized, Double-blind, Placebo Controlled, Multi-center and Tolerability of RBP-7000 in Schizophrenia Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "RBP-7000",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Risperidone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Indivior Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 354,
      "start_date": "2014-04",
      "completion_date": "2014-11",
      "has_results": true,
      "last_update_posted_date": "2018-10-26",
      "last_synced_at": "2026-09-24T06:28:05.743Z",
      "location_count": 32,
      "location_summary": "Little Rock, Arkansas • Springdale, Arkansas • Cerritos, California + 25 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Springdale",
          "state": "Arkansas"
        },
        {
          "city": "Cerritos",
          "state": "California"
        },
        {
          "city": "Escondido",
          "state": "California"
        },
        {
          "city": "Glendale",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02109562"
    },
    {
      "nct_id": "NCT00053703",
      "title": "Treatment of Early Onset Schizophrenia Spectrum Disorders (TEOSS)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "Risperidone",
          "type": "DRUG"
        },
        {
          "name": "Olanzapine (enrollment closed in this treatment)",
          "type": "DRUG"
        },
        {
          "name": "Molindone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "19 Years",
        "sex": "ALL",
        "summary": "8 Years to 19 Years"
      },
      "enrollment_count": 116,
      "start_date": "2002-02",
      "completion_date": "2007-05",
      "has_results": true,
      "last_update_posted_date": "2014-03-26",
      "last_synced_at": "2026-09-24T06:28:05.743Z",
      "location_count": 4,
      "location_summary": "Medford, Massachusetts • Chapel Hill, North Carolina • Cleveland, Ohio + 1 more",
      "locations": [
        {
          "city": "Medford",
          "state": "Massachusetts"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00053703"
    }
  ]
}