{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Idiopathic+Pulmonary+Arterial+Hypertension.",
    "query": {
      "condition": "Idiopathic Pulmonary Arterial Hypertension."
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 369,
    "total_pages": 37,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Idiopathic+Pulmonary+Arterial+Hypertension.&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-24T12:29:05.594Z",
  "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": "NCT03497689",
      "title": "EXPEDITE: A Study of Remodulin Induction Followed by Orenitram Optimization to Treat Pulmonary Arterial Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "Intravenous/Subcutaneous Treprostinil; Oral Treprostinil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "United 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": 36,
      "start_date": "2019-01-31",
      "completion_date": "2022-05-11",
      "has_results": true,
      "last_update_posted_date": "2023-08-07",
      "last_synced_at": "2026-07-24T12:29:05.594Z",
      "location_count": 11,
      "location_summary": "Fresno, California • Torrance, California • Orlando, Florida + 8 more",
      "locations": [
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Austell",
          "state": "Georgia"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03497689"
    },
    {
      "nct_id": "NCT00467896",
      "title": "The \"Power 15 Study\": Safety Study of Inhalation of Ventavis With the Power Disc-15 Setting",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "Iloprost PD-6",
          "type": "DRUG"
        },
        {
          "name": "Iloprost PD-15",
          "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": 62,
      "start_date": "2006-09",
      "completion_date": "2011-06",
      "has_results": true,
      "last_update_posted_date": "2013-04-04",
      "last_synced_at": "2026-07-24T12:29:05.594Z",
      "location_count": 12,
      "location_summary": "Phoenix, Arizona • La Jolla, California • Iowa City, Iowa + 8 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00467896"
    },
    {
      "nct_id": "NCT02007629",
      "title": "Riociguat Clinical Effects Studied in Patients With Insufficient Treatment Response to Phosphodiesterase-5 Inhibitor",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hypertension, Pulmonary"
      ],
      "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": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 61,
      "start_date": "2014-02-18",
      "completion_date": "2016-12-29",
      "has_results": false,
      "last_update_posted_date": "2019-02-21",
      "last_synced_at": "2026-07-24T12:29:05.594Z",
      "location_count": 7,
      "location_summary": "La Jolla, California • Sacramento, California • Iowa City, Iowa + 4 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02007629"
    },
    {
      "nct_id": "NCT03904693",
      "title": "Clinical Study to Compare the Efficacy and Safety of Macitentan and Tadalafil Monotherapies With the Corresponding Fixed-dose Combination Therapy in Subjects With Pulmonary Arterial Hypertension (PAH)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension (PAH) (WHO Group 1 PH)"
      ],
      "interventions": [
        {
          "name": "FDC macitentan/tadalafil",
          "type": "DRUG"
        },
        {
          "name": "Macitentan 10 mg",
          "type": "DRUG"
        },
        {
          "name": "Tadalafil 40 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo FDC",
          "type": "DRUG"
        },
        {
          "name": "Placebo macitentan",
          "type": "DRUG"
        },
        {
          "name": "Placebo tadalafil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Actelion",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 187,
      "start_date": "2019-07-29",
      "completion_date": "2024-09-27",
      "has_results": true,
      "last_update_posted_date": "2025-12-19",
      "last_synced_at": "2026-07-24T12:29:05.594Z",
      "location_count": 26,
      "location_summary": "Fullerton, California • Los Angeles, California • Atlanta, Georgia + 22 more",
      "locations": [
        {
          "city": "Fullerton",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Marietta",
          "state": "Georgia"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03904693"
    },
    {
      "nct_id": "NCT00581607",
      "title": "Double Blind, Randomized Trial of Bosentan for Sarcoidosis Associated Pulmonary Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Sarcoidosis",
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "Bosentan",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 43,
      "start_date": "2008-04",
      "completion_date": "2012-12",
      "has_results": false,
      "last_update_posted_date": "2013-04-12",
      "last_synced_at": "2026-07-24T12:29:05.594Z",
      "location_count": 4,
      "location_summary": "New York, New York • Cincinnati, Ohio • Cleveland, Ohio + 1 more",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00581607"
    },
    {
      "nct_id": "NCT04745000",
      "title": "Observational Study of Actigraphy in Pediatric Pulmonary Arterial Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypertension;Pulmonary;Primary"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "6 Years",
        "sex": "ALL",
        "summary": "Up to 6 Years"
      },
      "enrollment_count": 43,
      "start_date": "2021-02-11",
      "completion_date": "2022-04-14",
      "has_results": false,
      "last_update_posted_date": "2023-05-10",
      "last_synced_at": "2026-07-24T12:29:05.594Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04745000"
    },
    {
      "nct_id": "NCT07365332",
      "title": "An Adaptive Program of IKT-001 in Pulmonary Arterial Hypertension (PAH)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "IKT-001",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Inhibikase 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": 486,
      "start_date": "2026-04-23",
      "completion_date": "2029-12",
      "has_results": false,
      "last_update_posted_date": "2026-05-12",
      "last_synced_at": "2026-07-24T12:29:05.594Z",
      "location_count": 2,
      "location_summary": "Louisville, Kentucky • Boston, Massachusetts",
      "locations": [
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07365332"
    },
    {
      "nct_id": "NCT00403650",
      "title": "Inhaled Iloprost for Sarcoidosis-associated Pulmonary Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Sarcoidosis",
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "Iloprost",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 20,
      "start_date": "2006-11",
      "completion_date": "2008-09",
      "has_results": false,
      "last_update_posted_date": "2013-04-12",
      "last_synced_at": "2026-07-24T12:29:05.594Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00403650"
    },
    {
      "nct_id": "NCT05203510",
      "title": "A Study of a Mean Pulmonary Artery Pressure-Targeted Approach With Early and Rapid Treprostinil Therapy to Reverse Right Ventricular Remodeling in Participants With Pulmonary Arterial Hypertension",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "Parenteral Treprostinil",
          "type": "DRUG"
        },
        {
          "name": "Oral Treprostinil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "United Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 52,
      "start_date": "2022-10-20",
      "completion_date": "2028-04-30",
      "has_results": false,
      "last_update_posted_date": "2025-12-09",
      "last_synced_at": "2026-07-24T12:29:05.594Z",
      "location_count": 28,
      "location_summary": "Phoenix, Arizona • Fresno, California • Los Angeles, California + 23 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05203510"
    },
    {
      "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": "2026-07-24T12:29:05.594Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04808596"
    }
  ]
}