{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Chronic+Thromboembolic+Pulmonary+Hypertension+%28CTEPH%29",
    "query": {
      "condition": "Chronic Thromboembolic Pulmonary Hypertension (CTEPH)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 29,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Chronic+Thromboembolic+Pulmonary+Hypertension+%28CTEPH%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-09T02:27:08.322Z",
  "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": "NCT00747045",
      "title": "Lung Protective Ventilation in Pulmonary Thromboendarterectomy (PTE) Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Thromboembolic Pulmonary Hypertension",
        "Acute Lung Injury"
      ],
      "interventions": [
        {
          "name": "Ventilation Strategy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 128,
      "start_date": "2008-08",
      "completion_date": "2011-03",
      "has_results": false,
      "last_update_posted_date": "2014-12-03",
      "last_synced_at": "2026-10-09T02:27:08.322Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00747045"
    },
    {
      "nct_id": "NCT03689244",
      "title": "A Study to Find Out if Selexipag is Effective and Safe in Patients With Chronic Thromboembolic Pulmonary Hypertension When the Disease is Inoperable or Persistent/Recurrent After Surgery and/or Interventional Treatment",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Thromboembolic Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "Selexipag",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Actelion",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 128,
      "start_date": "2019-01-23",
      "completion_date": "2022-06-07",
      "has_results": true,
      "last_update_posted_date": "2024-06-21",
      "last_synced_at": "2026-10-09T02:27:08.322Z",
      "location_count": 32,
      "location_summary": "La Jolla, California • Los Angeles, California • Aurora, Colorado + 25 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        },
        {
          "city": "Littleton",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03689244"
    },
    {
      "nct_id": "NCT00910429",
      "title": "BAY63-2521 - Long-term Extension Study in Patients With Chronic Thromboembolic Pulmonary Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "Riociguat (Adempas, BAY63-2521)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "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": 237,
      "start_date": "2009-07-01",
      "completion_date": "2019-08-19",
      "has_results": true,
      "last_update_posted_date": "2023-11-07",
      "last_synced_at": "2026-10-09T02:27:08.322Z",
      "location_count": 8,
      "location_summary": "La Jolla, California • Sacramento, California • Iowa City, Iowa + 5 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00910429"
    },
    {
      "nct_id": "NCT01894022",
      "title": "A Open Label Study to Assess the Long-term Safety, Tolerability and Efficacy of Ambrisentan in Subjects With Inoperable Chronic Thromboembolic Pulmonary Hypertension (CTEPH)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Ambrisentan 5 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "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": 19,
      "start_date": "2014-01-23",
      "completion_date": "2015-11-18",
      "has_results": true,
      "last_update_posted_date": "2017-09-11",
      "last_synced_at": "2026-10-09T02:27:08.322Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts • Dallas, Texas",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01894022"
    },
    {
      "nct_id": "NCT05133713",
      "title": "Ventilation and Perfusion Scan in Pulmonary Embolism Following Catheter Directed Thrombectomy Versus Anticoagulation Alone",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pulmonary Embolism",
        "Pulmonary Hypertension",
        "Chronic Thromboembolic Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "Catheter directed therapy",
          "type": "DEVICE"
        },
        {
          "name": "Systemic anticoagulation",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2022-04-01",
      "completion_date": "2024-01-01",
      "has_results": false,
      "last_update_posted_date": "2022-09-23",
      "last_synced_at": "2026-10-09T02:27:08.322Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05133713"
    },
    {
      "nct_id": "NCT06038630",
      "title": "129Xe MRI Cardiopulmonary",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Interstitial Lung Disease",
        "Chronic Thromboembolic Pulmonary Hypertension",
        "Acute Pulmonary Embolism",
        "Anemia",
        "Polycythemia",
        "Dyspnea"
      ],
      "interventions": [
        {
          "name": "Hyperpolarized Xe129",
          "type": "DRUG"
        },
        {
          "name": "Oxygen Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Bastiaan Driehuys",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 125,
      "start_date": "2024-01-12",
      "completion_date": "2028-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-02-04",
      "last_synced_at": "2026-10-09T02:27:08.322Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06038630"
    },
    {
      "nct_id": "NCT05568927",
      "title": "Validation of SEARCH, a Novel Hierarchical Algorithm to Define Long-term Outcomes After Pulmonary Embolism",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pulmonary Embolism",
        "Chronic Thromboembolic Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "SEARCH algorithm",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2022-11-15",
      "completion_date": "2025-06-13",
      "has_results": false,
      "last_update_posted_date": "2025-11-04",
      "last_synced_at": "2026-10-09T02:27:08.322Z",
      "location_count": 8,
      "location_summary": "Fresno, California • Irvine, California • Los Angeles, California + 5 more",
      "locations": [
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Moreno Valley",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05568927"
    },
    {
      "nct_id": "NCT02114047",
      "title": "Pulmonary Perfusion Heterogeneity in Patients With CTEPH Using Functional PET Imaging",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Thromboembolic Pulmonary Hypertension"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 5,
      "start_date": "2014-02",
      "completion_date": "2017-01",
      "has_results": false,
      "last_update_posted_date": "2017-03-23",
      "last_synced_at": "2026-10-09T02:27:08.322Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02114047"
    },
    {
      "nct_id": "NCT03579862",
      "title": "Identification of Heritable CTEPH",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Thromboembolic Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "Blood Draw",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Intermountain Health Care, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 260,
      "start_date": "2013-12-25",
      "completion_date": "2023-12-31",
      "has_results": false,
      "last_update_posted_date": "2022-10-18",
      "last_synced_at": "2026-10-09T02:27:08.322Z",
      "location_count": 1,
      "location_summary": "Murray, Utah",
      "locations": [
        {
          "city": "Murray",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03579862"
    },
    {
      "nct_id": "NCT04808596",
      "title": "Pulmonary Hypertension Biorepository and Registry",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pulmonary Hypertension",
        "Pulmonary Arterial Hypertension",
        "Pulmonary Hypertension Due to Left Heart Disease",
        "Pulmonary Hypertension, Primary",
        "Pulmonary Hypertension Due to Lung Diseases and Hypoxia",
        "Pulmonary Hypertension, Primary, 4",
        "Pulmonary Hypertension, Primary, 2",
        "Pulmonary Hypertension, Primary, 3",
        "Chronic Thromboembolic Pulmonary Hypertension"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2020-08-10",
      "completion_date": "2027-07-31",
      "has_results": false,
      "last_update_posted_date": "2025-08-01",
      "last_synced_at": "2026-10-09T02:27:08.322Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04808596"
    }
  ]
}