{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Idiopathic+Pulmonary+Arterial+Hypertension&page=4",
    "query": {
      "condition": "Idiopathic Pulmonary Arterial Hypertension",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 373,
    "total_pages": 38,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Idiopathic+Pulmonary+Arterial+Hypertension&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Idiopathic+Pulmonary+Arterial+Hypertension&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-13T23:16:27.113Z",
  "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": "NCT04778046",
      "title": "Pulmonary Hypertension SOLAR",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Interstitial Lung Disease",
        "COPD",
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "Hyperpolarized 129Xe",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bastiaan Driehuys",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2023-11-08",
      "completion_date": "2028-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-24",
      "last_synced_at": "2026-10-13T23:16:27.113Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04778046"
    },
    {
      "nct_id": "NCT04813926",
      "title": "A Study to Learn About How Well Riociguat Works, How Safe it is and How it is Used Under Real World Conditions in Patients in the United States Who Are Receiving Riociguat for High Blood Pressure in the Arteries That Carry Blood From the Heart to the Lungs (Pulmonary Arterial Hypertension, PAH)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pulmonary Arterial 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": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 500,
      "start_date": "2021-07-16",
      "completion_date": "2025-02-03",
      "has_results": false,
      "last_update_posted_date": "2025-02-10",
      "last_synced_at": "2026-10-13T23:16:27.113Z",
      "location_count": 49,
      "location_summary": "Phoenix, Arizona • Tucson, Arizona • Fresno, California + 38 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04813926"
    },
    {
      "nct_id": "NCT01265888",
      "title": "Study in Subjects With PAH and PH Secondary to IPF Using Inhaled GeNOsyl.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension",
        "Idiopathic Pulmonary Fibrosis"
      ],
      "interventions": [
        {
          "name": "Inhaled Nitric Oxide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Geno LLC",
      "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": 31,
      "start_date": "2011-03",
      "completion_date": "2016-09",
      "has_results": false,
      "last_update_posted_date": "2016-09-19",
      "last_synced_at": "2026-10-13T23:16:27.113Z",
      "location_count": 10,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • Sacramento, California + 7 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01265888"
    },
    {
      "nct_id": "NCT00625079",
      "title": "Pulmonary Hypertension Secondary to Idiopathic Pulmonary Fibrosis And Treatment With Sildenafil",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension",
        "Idiopathic Pulmonary Fibrosis",
        "Interstitial Lung Disease",
        "Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "sildenafil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 0,
      "start_date": "2007-02",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2018-05-01",
      "last_synced_at": "2026-10-13T23:16:27.113Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00625079"
    },
    {
      "nct_id": "NCT01835080",
      "title": "Obstructive Sleep Apnea (OSA) in Pulmonary Arterial Hypertension (PAH)",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pulmonary Arterial Hypertension",
        "Obstructive Sleep Apnea"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Inova Health Care Services",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2013-04",
      "completion_date": "2014-03",
      "has_results": false,
      "last_update_posted_date": "2020-06-16",
      "last_synced_at": "2026-10-13T23:16:27.113Z",
      "location_count": 1,
      "location_summary": "Falls Church, Virginia",
      "locations": [
        {
          "city": "Falls Church",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01835080"
    },
    {
      "nct_id": "NCT07312227",
      "title": "A Prospective Longitudinal Observational Cohort Study of Pregnant Women Residing at High Altitude in Bolivia",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypertensive Disorder of Pregnancy",
        "Pulmonary Arterial Hypertension",
        "Intrauterine Growth Restriction"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 27,
      "start_date": "2026-02-11",
      "completion_date": "2027-02",
      "has_results": false,
      "last_update_posted_date": "2026-05-26",
      "last_synced_at": "2026-10-13T23:16:27.113Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07312227"
    },
    {
      "nct_id": "NCT07217522",
      "title": "Rutgers University Study of the Genetics of Pulmonary Hypertension",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pulmonary Hypertension",
        "Pulmonary Arterial Hypertension",
        "Pulmonary Arterial Hypertension (PAH) (WHO Group 1 PH)",
        "Pulmonary Arterial Hypertension Associated With Connective Tissue Disease",
        "Pulmonary Arterial Hypertension Associated With Connective Tissue Disease (Disorder)",
        "Pulmonary Arterial Hypertension Associated With Schistosomiasis (Disorder)",
        "Pulmonary Arterial Hypertension of Congenital Heart Disease",
        "Pulmonary Arterial and Chronic Thromboembolic Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "Saliva sample",
          "type": "GENETIC"
        },
        {
          "name": "Health surveys",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "OTHER"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10000,
      "start_date": "2025-08-23",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-11-03",
      "last_synced_at": "2026-10-13T23:16:27.113Z",
      "location_count": 1,
      "location_summary": "Piscataway, New Jersey",
      "locations": [
        {
          "city": "Piscataway",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07217522"
    },
    {
      "nct_id": "NCT00034307",
      "title": "Safety and Efficacy of Sitaxsentan in the Treatment of Pulmonary Arterial Hypertension",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "sitaxsentan sodium",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ICOS-Texas Biotechnology",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "16 Years to 75 Years"
      },
      "enrollment_count": 180,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2005-06-24",
      "last_synced_at": "2026-10-13T23:16:27.113Z",
      "location_count": 25,
      "location_summary": "Los Angeles, California • San Francisco, California • Torrance, California + 21 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00034307"
    },
    {
      "nct_id": "NCT01338636",
      "title": "An Open-Label Uncontrolled Study of the Safety and Efficacy of Ambrisentan in Participants With Exercise-Induced Pulmonary Arterial Hypertension (PAH)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Exercise-induced Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "Ambrisentan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2008-09",
      "completion_date": "2016-05",
      "has_results": true,
      "last_update_posted_date": "2022-01-18",
      "last_synced_at": "2026-10-13T23:16:27.113Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01338636"
    },
    {
      "nct_id": "NCT05036135",
      "title": "A Study of AV-101 (Dry Powder Inhaled Imatinib) in Patients With Pulmonary Arterial Hypertension (PAH)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "AV-101",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Aerovate Therapeutics",
      "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": 202,
      "start_date": "2021-12-02",
      "completion_date": "2024-08-09",
      "has_results": false,
      "last_update_posted_date": "2024-08-23",
      "last_synced_at": "2026-10-13T23:16:27.113Z",
      "location_count": 39,
      "location_summary": "Phoenix, Arizona • Tucson, Arizona • Los Angeles, California + 31 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05036135"
    }
  ]
}