{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Primary+Parkinsonism&page=57",
    "query": {
      "condition": "Primary Parkinsonism",
      "page": 57
    },
    "page_size": 10
  },
  "pagination": {
    "page": 57,
    "page_size": 10,
    "total_count": 1451,
    "total_pages": 146,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Primary+Parkinsonism&page=58&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Primary+Parkinsonism&page=56&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-05T15:42:49.407Z",
  "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": "NCT03301272",
      "title": "Effectiveness of Botox on Reducing Rest Tremor in Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "Onabotulinumtoxin A Injection",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "45 Years to 80 Years"
      },
      "enrollment_count": 16,
      "start_date": "2018-03-22",
      "completion_date": "2019-08-21",
      "has_results": true,
      "last_update_posted_date": "2020-08-17",
      "last_synced_at": "2026-11-05T15:42:49.407Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03301272"
    },
    {
      "nct_id": "NCT04893083",
      "title": "A Non-interventional Study for the Collection of Biospecimens From Patients With Parkinson's Disease",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Neuron23 Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 65,
      "start_date": "2021-06-28",
      "completion_date": "2023-09-22",
      "has_results": false,
      "last_update_posted_date": "2023-10-30",
      "last_synced_at": "2026-11-05T15:42:49.407Z",
      "location_count": 3,
      "location_summary": "Englewood, Colorado • Farmington Hills, Michigan • Kirkland, Washington",
      "locations": [
        {
          "city": "Englewood",
          "state": "Colorado"
        },
        {
          "city": "Farmington Hills",
          "state": "Michigan"
        },
        {
          "city": "Kirkland",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04893083"
    },
    {
      "nct_id": "NCT00642356",
      "title": "Carbidopa/Levodopa/Entacapone Versus Immediate Release (IR) Carbidopa/Levodopa on Non-motor Symptoms in Patients With Idiopathic Parkinson's Disease and Demonstrating Non-motor Symptoms of Wearing Off",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "Carbidopa/levodopa/entacapone",
          "type": "DRUG"
        },
        {
          "name": "Immediate release carbidopa/levodopa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "30 Years to 85 Years"
      },
      "enrollment_count": 14,
      "start_date": "2008-03",
      "completion_date": "2009-05",
      "has_results": true,
      "last_update_posted_date": "2011-02-18",
      "last_synced_at": "2026-11-05T15:42:49.407Z",
      "location_count": 21,
      "location_summary": "Phoenix, Arizona • Aliso Viejo, California • Irvine, California + 17 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Aliso Viejo",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00642356"
    },
    {
      "nct_id": "NCT01382342",
      "title": "The Effect of Rasagiline on Cognition in Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "Rasagiline",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Brown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2011-06",
      "completion_date": "2014-02",
      "has_results": false,
      "last_update_posted_date": "2015-02-05",
      "last_synced_at": "2026-11-05T15:42:49.407Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01382342"
    },
    {
      "nct_id": "NCT06028529",
      "title": "Feasibility and Safety of a Portable Exoskeleton to Improve Mobility in Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "Exoskeleton",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 10,
      "start_date": "2024-09-01",
      "completion_date": "2026-02-25",
      "has_results": false,
      "last_update_posted_date": "2026-10-07",
      "last_synced_at": "2026-11-05T15:42:49.407Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06028529"
    },
    {
      "nct_id": "NCT05779475",
      "title": "An Observational Study of Patients With Moderate Parkinson's Disease",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "No treatment given",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Novo Nordisk A/S",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "68 Years",
        "sex": "ALL",
        "summary": "50 Years to 68 Years"
      },
      "enrollment_count": 96,
      "start_date": "2023-04-05",
      "completion_date": "2030-03-11",
      "has_results": false,
      "last_update_posted_date": "2025-12-24",
      "last_synced_at": "2026-11-05T15:42:49.407Z",
      "location_count": 3,
      "location_summary": "Irvine, California • New York, New York",
      "locations": [
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05779475"
    },
    {
      "nct_id": "NCT03872102",
      "title": "Facilitating Diagnostics and Prognostics of Parkinsonian Syndromes Using Neuroimaging",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinson Disease",
        "Multiple System Atrophy",
        "Progressive Supranuclear Palsy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 90,
      "start_date": "2019-03-28",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-27",
      "last_synced_at": "2026-11-05T15:42:49.407Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03872102"
    },
    {
      "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": "2026-11-05T15:42:49.407Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05240339"
    },
    {
      "nct_id": "NCT04658186",
      "title": "A 18-month Study to Evaluate the Efficacy, Safety, Tolerability and Pharmacokinetics of Oral UCB0599 in Study Participants With Early-stage Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Early-stage Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "UCB0599",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "UCB Biopharma SRL",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 496,
      "start_date": "2020-12-30",
      "completion_date": "2024-09-06",
      "has_results": true,
      "last_update_posted_date": "2025-10-31",
      "last_synced_at": "2026-11-05T15:42:49.407Z",
      "location_count": 57,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 47 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04658186"
    },
    {
      "nct_id": "NCT04273672",
      "title": "Speech, Linguistic and Acoustic Markers in Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinson Disease",
        "Cognitive Impairment, Mild",
        "Speech"
      ],
      "interventions": [
        {
          "name": "Cognitive Battery",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Voice, Speech and Language Analysis",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Questionnaires and Clinical Assessments",
          "type": "BEHAVIORAL"
        },
        {
          "name": "DNA Analysis",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "BEHAVIORAL",
        "GENETIC"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 58,
      "start_date": "2020-01-13",
      "completion_date": "2025-02-28",
      "has_results": true,
      "last_update_posted_date": "2025-06-10",
      "last_synced_at": "2026-11-05T15:42:49.407Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04273672"
    }
  ]
}