{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Parkinson+Disease+Psychosis",
    "query": {
      "condition": "Parkinson Disease Psychosis"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 30,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Parkinson+Disease+Psychosis&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-11T05:07:59.304Z",
  "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": "NCT00658567",
      "title": "A Study of Safety and Efficacy of Pimavanserin (ACP-103) in Patients With Parkinson's Disease Psychosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Parkinson's Disease Psychosis"
      ],
      "interventions": [
        {
          "name": "Pimavanserin tartrate (ACP-103)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ACADIA Pharmaceuticals Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 123,
      "start_date": "2008-03",
      "completion_date": "2009-12",
      "has_results": true,
      "last_update_posted_date": "2017-05-19",
      "last_synced_at": "2026-06-11T05:07:59.304Z",
      "location_count": 26,
      "location_summary": "La Habra, California • Laguna Hills, California • Reseda, California + 22 more",
      "locations": [
        {
          "city": "La Habra",
          "state": "California"
        },
        {
          "city": "Laguna Hills",
          "state": "California"
        },
        {
          "city": "Reseda",
          "state": "California"
        },
        {
          "city": "Ventura",
          "state": "California"
        },
        {
          "city": "Englewood",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00658567"
    },
    {
      "nct_id": "NCT02969369",
      "title": "A Study to Evaluate the Efficacy, Safety and Tolerability of SEP-363856 in Subjects With Parkinson's Disease Psychosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Parkinson Disease Psychosis"
      ],
      "interventions": [
        {
          "name": "SEP-363856",
          "type": "DRUG"
        },
        {
          "name": "Placebo capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Otsuka Pharmaceutical Development & Commercialization, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": "105 Years",
        "sex": "ALL",
        "summary": "55 Years to 105 Years"
      },
      "enrollment_count": 39,
      "start_date": "2016-12-31",
      "completion_date": "2020-04-20",
      "has_results": true,
      "last_update_posted_date": "2024-07-05",
      "last_synced_at": "2026-06-11T05:07:59.304Z",
      "location_count": 24,
      "location_summary": "Fresno, California • Los Angeles, California • Riverside, California + 19 more",
      "locations": [
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Riverside",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlantis",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02969369"
    },
    {
      "nct_id": "NCT00001258",
      "title": "Studies of Frontal Lobe Brain Functioning in Schizophrenia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Healthy Subjects",
        "Schizophrenia",
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "Oxygen-15 Water",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Mental Health (NIMH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 1039,
      "start_date": "1993-11-26",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-06-11T05:07:59.304Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001258"
    },
    {
      "nct_id": "NCT05240339",
      "title": "Characterization and Progression of Minor Phenomena in Parkinson's Disease (PD)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinson Disease",
        "Parkinson Disease Psychosis",
        "Hallucinations",
        "Delusion"
      ],
      "interventions": [
        {
          "name": "Observation of minor phenomena",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 38,
      "start_date": "2019-04-25",
      "completion_date": "2023-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-03-08",
      "last_synced_at": "2026-06-11T05:07:59.304Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05240339"
    },
    {
      "nct_id": "NCT01174004",
      "title": "A Study of the Safety and Efficacy of Pimavanserin in Patients With Parkinson's Disease Psychosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Parkinson's Disease Psychosis"
      ],
      "interventions": [
        {
          "name": "pimavanserin tartrate",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ACADIA Pharmaceuticals Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 199,
      "start_date": "2010-07",
      "completion_date": "2012-11",
      "has_results": true,
      "last_update_posted_date": "2014-03-26",
      "last_synced_at": "2026-06-11T05:07:59.304Z",
      "location_count": 62,
      "location_summary": "Gilbert, Arizona • Phoenix, Arizona • Tucson, Arizona + 58 more",
      "locations": [
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Carson",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01174004"
    },
    {
      "nct_id": "NCT02453763",
      "title": "In Vivo Imaging of Therapeutic Electric Current Flow",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinson Disease",
        "Epilepsy",
        "Alzheimer's Disease",
        "Stroke",
        "Autism",
        "Depression",
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "Transcranial direct current stimulation",
          "type": "DEVICE"
        },
        {
          "name": "MRI",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "18 Years to 30 Years"
      },
      "enrollment_count": 17,
      "start_date": "2015-06",
      "completion_date": "2017-07-06",
      "has_results": false,
      "last_update_posted_date": "2018-04-05",
      "last_synced_at": "2026-06-11T05:07:59.304Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02453763"
    },
    {
      "nct_id": "NCT05357612",
      "title": "Characterization of the Serotonin 2A Receptor Selective PET Tracer [18F]MH.MZ in Patients With Neurodegenerative Diseases",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Neurodegenerative Diseases",
        "Parkinson Disease",
        "Parkinson Disease Psychosis"
      ],
      "interventions": [
        {
          "name": "Pimavanserin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "50 Years to 85 Years"
      },
      "enrollment_count": 75,
      "start_date": "2023-01-23",
      "completion_date": "2026-08",
      "has_results": false,
      "last_update_posted_date": "2025-08-12",
      "last_synced_at": "2026-06-11T05:07:59.304Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05357612"
    },
    {
      "nct_id": "NCT02818777",
      "title": "A Study of Tolerability and Efficacy of Cannabidiol on Tremor in Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "cannabidiol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 13,
      "start_date": "2016-10",
      "completion_date": "2017-11",
      "has_results": true,
      "last_update_posted_date": "2019-02-19",
      "last_synced_at": "2026-06-11T05:07:59.304Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02818777"
    },
    {
      "nct_id": "NCT03325556",
      "title": "Relapse Prevention Study of Pimavanserin in Dementia-related Psychosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Dementia-related Psychosis"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Pimavanserin 34 mg",
          "type": "DRUG"
        },
        {
          "name": "Pimavanserin 20 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ACADIA Pharmaceuticals Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "50 Years to 90 Years"
      },
      "enrollment_count": 392,
      "start_date": "2017-09-27",
      "completion_date": "2019-10-30",
      "has_results": true,
      "last_update_posted_date": "2021-06-21",
      "last_synced_at": "2026-06-11T05:07:59.304Z",
      "location_count": 27,
      "location_summary": "Costa Mesa, California • Fullerton, California • Aventura, Florida + 22 more",
      "locations": [
        {
          "city": "Costa Mesa",
          "state": "California"
        },
        {
          "city": "Fullerton",
          "state": "California"
        },
        {
          "city": "Aventura",
          "state": "Florida"
        },
        {
          "city": "Boca Raton",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03325556"
    },
    {
      "nct_id": "NCT05344365",
      "title": "A Study to Evaluate Iloperidone for the Treatment of Parkinson's Disease Psychosis",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Parkinson Disease Psychosis"
      ],
      "interventions": [
        {
          "name": "Iloperidone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanda Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2022-06",
      "completion_date": "2023-11",
      "has_results": false,
      "last_update_posted_date": "2024-03-21",
      "last_synced_at": "2026-06-11T05:07:59.304Z",
      "location_count": 1,
      "location_summary": "St. Petersburg, Florida",
      "locations": [
        {
          "city": "St. Petersburg",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05344365"
    }
  ]
}