{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=CTEPH&page=2",
    "query": {
      "condition": "CTEPH",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=CTEPH&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T08:21:36.086Z",
  "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": "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": "2026-07-23T08:21:36.086Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05133713"
    },
    {
      "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": "2026-07-23T08:21:36.086Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02114047"
    },
    {
      "nct_id": "NCT05629052",
      "title": "TrEatment Approach in the Multimodal Era Registry",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Thromboembolic Pulmonary Hypertension",
        "CTEPH"
      ],
      "interventions": [
        {
          "name": "Pulmonary endarterectomy",
          "type": "PROCEDURE"
        },
        {
          "name": "Balloon pulmonary angioplasty",
          "type": "PROCEDURE"
        },
        {
          "name": "Pulmonary hypertension (PH)-specific medication",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "International CTEPH Association",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2023-04-12",
      "completion_date": "2028-04",
      "has_results": false,
      "last_update_posted_date": "2025-05-08",
      "last_synced_at": "2026-07-23T08:21:36.086Z",
      "location_count": 4,
      "location_summary": "San Diego, California • Evanston, Illinois • Durham, North Carolina + 1 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Evanston",
          "state": "Illinois"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05629052"
    },
    {
      "nct_id": "NCT02429284",
      "title": "U.S. CTEPH Registry",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Thromboembolic Pulmonary Hypertension (CTEPH)",
        "Pulmonary Hypertension"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 754,
      "start_date": "2015-04",
      "completion_date": "2019-11",
      "has_results": false,
      "last_update_posted_date": "2020-03-24",
      "last_synced_at": "2026-07-23T08:21:36.086Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02429284"
    },
    {
      "nct_id": "NCT02656238",
      "title": "New International CTEPH Database",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Thromboembolic Pulmonary Hypertension",
        "CTEPH"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "International CTEPH Association",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 1019,
      "start_date": "2015-02",
      "completion_date": "2020-01",
      "has_results": false,
      "last_update_posted_date": "2022-08-08",
      "last_synced_at": "2026-07-23T08:21:36.086Z",
      "location_count": 3,
      "location_summary": "La Jolla, California • Baltimore, Maryland • Cleveland, Ohio",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02656238"
    },
    {
      "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": "2026-07-23T08:21:36.086Z",
      "location_count": 1,
      "location_summary": "Murray, Utah",
      "locations": [
        {
          "city": "Murray",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03579862"
    },
    {
      "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": "2026-07-23T08:21:36.086Z",
      "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": "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": "2026-07-23T08:21:36.086Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04808596"
    },
    {
      "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": "2026-07-23T08:21:36.086Z",
      "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": "NCT05843500",
      "title": "Chronic Thromboembolic Disease Registry",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Thromboembolic Pulmonary Hypertension",
        "Chronic Thromboembolic Disease"
      ],
      "interventions": [
        {
          "name": "Survey",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2023-08-01",
      "completion_date": "2028-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-14",
      "last_synced_at": "2026-07-23T08:21:36.086Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05843500"
    }
  ]
}