{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Clazosentan",
    "query": {
      "intervention": "Clazosentan"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 4,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-07T12:39:30.198Z",
  "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": "NCT00940095",
      "title": "Clazosentan in Aneurysmal Subarachnoid Hemorrhage",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Aneurysmal Subarachnoid Hemorrhage"
      ],
      "interventions": [
        {
          "name": "Clazosentan 5 m/h",
          "type": "DRUG"
        },
        {
          "name": "Clazosentan 15 mg/h",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Idorsia Pharmaceuticals Ltd.",
      "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": 577,
      "start_date": "2009-07-01",
      "completion_date": "2011-01-01",
      "has_results": false,
      "last_update_posted_date": "2018-07-09",
      "last_synced_at": "2026-09-07T12:39:30.198Z",
      "location_count": 29,
      "location_summary": "Glendale, California • San Francisco, California • Stanford, California + 21 more",
      "locations": [
        {
          "city": "Glendale",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Englewood",
          "state": "Colorado"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00940095"
    },
    {
      "nct_id": "NCT00558311",
      "title": "Clazosentan in Reducing Vasospasm-related Morbidity and All-cause Mortality in Adult Patients With Aneurysmal Subarachnoid Hemorrhage Treated by Surgical Clipping",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Aneurysmal Subarachnoid Hemorrhage"
      ],
      "interventions": [
        {
          "name": "Clazosentan",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Idorsia Pharmaceuticals Ltd.",
      "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": 1157,
      "start_date": "2007-12-14",
      "completion_date": "2010-07-13",
      "has_results": false,
      "last_update_posted_date": "2020-02-17",
      "last_synced_at": "2026-09-07T12:39:30.198Z",
      "location_count": 11,
      "location_summary": "Phoenix, Arizona • Englewood, Colorado • Boston, Massachusetts + 8 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Englewood",
          "state": "Colorado"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Stony Brook",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00558311"
    },
    {
      "nct_id": "NCT00111085",
      "title": "Clazosentan in Preventing the Occurrence of Cerebral Vasospasm Following an Aneurysmal Subarachnoid Hemorrhage (aSAH)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Aneurysmal Subarachnoid Hemorrhage"
      ],
      "interventions": [
        {
          "name": "Clazosentan 1 mg/h",
          "type": "DRUG"
        },
        {
          "name": "Clazosentan 5 mg/h",
          "type": "DRUG"
        },
        {
          "name": "Clazosentan 15 mg/h",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Idorsia Pharmaceuticals Ltd.",
      "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": 413,
      "start_date": "2005-01-10",
      "completion_date": "2006-03-30",
      "has_results": false,
      "last_update_posted_date": "2018-07-10",
      "last_synced_at": "2026-09-07T12:39:30.198Z",
      "location_count": 10,
      "location_summary": "Peoria, Illinois • Indianapolis, Indiana • Baltimore, Maryland + 6 more",
      "locations": [
        {
          "city": "Peoria",
          "state": "Illinois"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00111085"
    },
    {
      "nct_id": "NCT03585270",
      "title": "Clinical Research Study With Clazosentan to Evaluate Its Effects on Preventing Complications Due to the Narrowing of the Blood Vessels (Vasospasm) in the Brain, Caused by Bleeding Onto the Surface of the Brain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Aneurysmal Subarachnoid Hemorrhage"
      ],
      "interventions": [
        {
          "name": "Clazosentan",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Idorsia Pharmaceuticals Ltd.",
      "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": 409,
      "start_date": "2019-02-03",
      "completion_date": "2022-11-18",
      "has_results": true,
      "last_update_posted_date": "2024-01-10",
      "last_synced_at": "2026-09-07T12:39:30.198Z",
      "location_count": 16,
      "location_summary": "Stanford, California • Jacksonville, Florida • Chicago, Illinois + 11 more",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03585270"
    }
  ]
}