{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=JZP258",
    "query": {
      "intervention": "JZP258"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T17:15:33.229Z",
  "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": "NCT03030599",
      "title": "A Study of the Efficacy and Safety of JZP-258 in Subjects With Narcolepsy With Cataplexy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Narcolepsy With Cataplexy"
      ],
      "interventions": [
        {
          "name": "JZP-258",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Jazz Pharmaceuticals",
      "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": 201,
      "start_date": "2017-03-14",
      "completion_date": "2019-07-10",
      "has_results": true,
      "last_update_posted_date": "2020-11-12",
      "last_synced_at": "2026-09-05T17:15:33.229Z",
      "location_count": 12,
      "location_summary": "Orange, California • Stanford, California • Boulder, Colorado + 9 more",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Boulder",
          "state": "Colorado"
        },
        {
          "city": "Kissimmee",
          "state": "Florida"
        },
        {
          "city": "Fort Wayne",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03030599"
    },
    {
      "nct_id": "NCT05869773",
      "title": "A Switch Study From High-Sodium Oxybate to Xywav to Evaluate Changes in Blood Pressure in Participants With Narcolepsy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Narcolepsy"
      ],
      "interventions": [
        {
          "name": "JZP258",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jazz Pharmaceuticals",
      "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": 155,
      "start_date": "2023-06-26",
      "completion_date": "2025-03-10",
      "has_results": true,
      "last_update_posted_date": "2026-04-24",
      "last_synced_at": "2026-09-05T17:15:33.229Z",
      "location_count": 31,
      "location_summary": "Culver City, California • Encino, California • Huntington Beach, California + 27 more",
      "locations": [
        {
          "city": "Culver City",
          "state": "California"
        },
        {
          "city": "Encino",
          "state": "California"
        },
        {
          "city": "Huntington Beach",
          "state": "California"
        },
        {
          "city": "Lakewood",
          "state": "California"
        },
        {
          "city": "Redwood City",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05869773"
    },
    {
      "nct_id": "NCT03533114",
      "title": "A Multicenter Study of the Efficacy and Safety of JZP-258 in the Treatment of Idiopathic Hypersomnia (IH) With an Open-label Safety Extension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Idiopathic Hypersomnia"
      ],
      "interventions": [
        {
          "name": "JZP-258",
          "type": "DRUG"
        },
        {
          "name": "Placebo Oral Solution",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jazz Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 154,
      "start_date": "2018-11-27",
      "completion_date": "2020-12-18",
      "has_results": true,
      "last_update_posted_date": "2021-11-24",
      "last_synced_at": "2026-09-05T17:15:33.229Z",
      "location_count": 40,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 35 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03533114"
    },
    {
      "nct_id": "NCT05875974",
      "title": "A Study to Investigate the Effect of XYWAV on Sleepiness, Polysomnography, and Functional Outcomes in Participants With Idiopathic Hypersomnia or Narcolepsy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Idiopathic Hypersomnia",
        "Narcolepsy"
      ],
      "interventions": [
        {
          "name": "JZP258 (XYWAV)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jazz Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 199,
      "start_date": "2023-07-27",
      "completion_date": "2025-03-13",
      "has_results": true,
      "last_update_posted_date": "2026-08-27",
      "last_synced_at": "2026-09-05T17:15:33.229Z",
      "location_count": 29,
      "location_summary": "Birmingham, Alabama • Scottsdale, Arizona • Irvine, California + 25 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Lakewood",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05875974"
    },
    {
      "nct_id": "NCT07625280",
      "title": "A Study Evaluating the Efficacy and Safety of Xywav Expanded Dosing vs Placebo in Participants With Narcolepsy or IH",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Narcolepsy",
        "Idiopathic Hypersomnia"
      ],
      "interventions": [
        {
          "name": "Xywav",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Jazz Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 120,
      "start_date": "2026-07-09",
      "completion_date": "2028-01-06",
      "has_results": false,
      "last_update_posted_date": "2026-08-19",
      "last_synced_at": "2026-09-05T17:15:33.229Z",
      "location_count": 3,
      "location_summary": "Los Angeles, California • Cincinnati, Ohio • Dublin, Ohio",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Dublin",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07625280"
    },
    {
      "nct_id": "NCT04794491",
      "title": "An Interventional Safety Switch Study (Segue Study) of XYWAV in Narcolepsy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Narcolepsy"
      ],
      "interventions": [
        {
          "name": "JZP-258",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jazz Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 62,
      "start_date": "2021-03-22",
      "completion_date": "2022-11-15",
      "has_results": true,
      "last_update_posted_date": "2024-01-09",
      "last_synced_at": "2026-09-05T17:15:33.229Z",
      "location_count": 28,
      "location_summary": "Alabaster, Alabama • Birmingham, Alabama • Los Angeles, California + 22 more",
      "locations": [
        {
          "city": "Alabaster",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04794491"
    }
  ]
}