{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Oligosymptomatic+PSP+%28oPSP%29",
    "query": {
      "condition": "Oligosymptomatic PSP (oPSP)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 3,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T03:39:50.854Z",
  "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": "NCT02365922",
      "title": "Advancing Research and Treatment for Frontotemporal Lobar Degeneration (ARTFL)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "FTLD",
        "Progressive Supranuclear Palsy (PSP)",
        "Frontotemporal Dementia (FTD)",
        "Corticobasal Degeneration (CBD)",
        "PPA Syndrome",
        "Behavioral Variant Frontotemporal Dementia (bvFTD)",
        "Semantic Variant Primary Progressive Aphasia (svPPA)",
        "Nonfluent Variant Primary Progressive Aphasia (nfvPPA)",
        "FTD With Amyotrophic Lateral Sclerosis (FTD/ALS)",
        "Amyotrophic Lateral Sclerosis (ALS)",
        "Oligosymptomatic PSP (oPSP)",
        "Corticobasal Syndrome (CBS)"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 1489,
      "start_date": "2014-09",
      "completion_date": "2020-09",
      "has_results": false,
      "last_update_posted_date": "2021-05-21",
      "last_synced_at": "2026-05-22T03:39:50.854Z",
      "location_count": 15,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • San Diego, California + 12 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02365922"
    },
    {
      "nct_id": "NCT04363684",
      "title": "ARTFL LEFFTDS Longitudinal Frontotemporal Lobar Degeneration (ALLFTD)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Frontotemporal Lobar Degeneration (FTLD)",
        "Progressive Supranuclear Palsy (PSP)",
        "Corticobasal Degeneration (CBD)",
        "Behavioral Variant Frontotemporal Dementia (bvFTD)",
        "Semantic Variant Primary Progressive Aphasia (svPPA)",
        "Nonfluent Variant Primary Progressive Aphasia (nfvPPA)",
        "FTD With Amyotrophic Lateral Sclerosis (FTD/ALS)",
        "Amyotrophic Lateral Sclerosis",
        "Oligosymptomatic PSP (oPSP)",
        "C9orf72",
        "GRN Related Frontotemporal Dementia",
        "MAPT Gene Mutation",
        "TBK1 Gene Mutation",
        "Oligosymptomatic Progressive Supranuclear Palsy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2100,
      "start_date": "2020-03-01",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-07-11",
      "last_synced_at": "2026-05-22T03:39:50.854Z",
      "location_count": 25,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • San Diego, California + 21 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04363684"
    },
    {
      "nct_id": "NCT02966145",
      "title": "4-Repeat Tauopathy Neuroimaging Initiative - Cycle 2",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Corticobasal Degeneration (CBD)",
        "Corticobasal Syndrome (CBS)",
        "Cortical-basal Ganglionic Degeneration (CBGD)",
        "Progressive Supranuclear Palsy (PSP)",
        "Nonfluent Variant Primary Progressive Aphasia (nfvPPA)",
        "Oligosymptomatic/Variant Progressive Supranuclear Palsy (o/vPSP)"
      ],
      "interventions": [
        {
          "name": "Observational Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 293,
      "start_date": "2016-01",
      "completion_date": "2024-02-28",
      "has_results": false,
      "last_update_posted_date": "2025-04-13",
      "last_synced_at": "2026-05-22T03:39:50.854Z",
      "location_count": 7,
      "location_summary": "San Diego, California • San Francisco, California • Baltimore, Maryland + 4 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Charlestown",
          "state": "Massachusetts"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02966145"
    }
  ]
}