{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hypertension%3BPulmonary%3BPrimary&page=3",
    "query": {
      "condition": "Hypertension;Pulmonary;Primary",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 51,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hypertension%3BPulmonary%3BPrimary&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hypertension%3BPulmonary%3BPrimary&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-13T07:03:33.132Z",
  "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": "NCT00098072",
      "title": "Endothelial Cell Dysfunction in Pulmonary Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Secondary Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "Heart Catheterization",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "National Institutes of Health Clinical Center (CC)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 27,
      "start_date": "2000-05-17",
      "completion_date": "2009-07-08",
      "has_results": false,
      "last_update_posted_date": "2026-10-08",
      "last_synced_at": "2026-10-13T07:03:33.132Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00098072"
    },
    {
      "nct_id": "NCT04141891",
      "title": "Advancing Understanding of Transportation Options",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetic Retinopathy",
        "Macular Degeneration",
        "Glaucoma",
        "Retinitis Pigmentosa",
        "Vision Disorders",
        "Acute Coronary Syndrome",
        "Implantable Defibrillator User",
        "Congestive Heart Failure",
        "Hypertrophic Obstructive Cardiomyopathy",
        "Orthostatic Hypotension",
        "Syncope",
        "Presyncope",
        "Narcolepsy",
        "Dementia",
        "Multiple Sclerosis",
        "Parkinson Disease",
        "Brain Injuries",
        "Spinal Cord Injuries",
        "Stroke",
        "Vertigo",
        "Dizziness",
        "Seizures",
        "Substance Use",
        "Insulin Dependent Diabetes Mellitus",
        "Arthritis",
        "Foot--Abnormalities",
        "Chronic Obstructive Pulmonary Disease",
        "Obstructive Sleep Apnea",
        "End Stage Renal Disease",
        "Sleep Apnea",
        "Insomnia",
        "Restless Legs Syndrome"
      ],
      "interventions": [
        {
          "name": "Driving Decision Aid",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Older Drivers Website",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 529,
      "start_date": "2019-12-12",
      "completion_date": "2023-12-21",
      "has_results": true,
      "last_update_posted_date": "2025-02-21",
      "last_synced_at": "2026-10-13T07:03:33.132Z",
      "location_count": 3,
      "location_summary": "La Jolla, California • Aurora, Colorado • Indianapolis, Indiana",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04141891"
    },
    {
      "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": "2026-10-13T07:03:33.132Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04745000"
    },
    {
      "nct_id": "NCT05584722",
      "title": "Risk and Resilience in Pulmonary Arterial Hypertension and Genetically Susceptible Individuals",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Idiopathic Pulmonary Arterial Hypertension",
        "Heritable Pulmonary Arterial Hypertension",
        "Unaffected Mutation Carriers: Healthy Participants With a Known BMPR2 Gene Mutation and Normal Pulmonary Pressure and RV Function on Echo",
        "Healthy Individuals With no Cardiopulmonary Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "15 Years to 80 Years"
      },
      "enrollment_count": 150,
      "start_date": "2022-11-01",
      "completion_date": "2026-08-31",
      "has_results": false,
      "last_update_posted_date": "2026-03-10",
      "last_synced_at": "2026-10-13T07:03:33.132Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05584722"
    },
    {
      "nct_id": "NCT04456998",
      "title": "GB002 in Adult Subjects With Pulmonary Arterial Hypertension (PAH)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pulmonary Artery Hypertension"
      ],
      "interventions": [
        {
          "name": "GB002 (seralutinib)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Generic Dry Powder Inhaler",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "GB002, Inc., a wholly owned subsidiary of Gossamer Bio, Inc.",
      "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": 86,
      "start_date": "2020-11-12",
      "completion_date": "2022-11-01",
      "has_results": true,
      "last_update_posted_date": "2023-11-07",
      "last_synced_at": "2026-10-13T07:03:33.132Z",
      "location_count": 36,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Sacramento, California + 31 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Santa Barbara",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04456998"
    },
    {
      "nct_id": "NCT00016523",
      "title": "Inhaled Nitric Oxide for Preterm Infants With Severe Respiratory Failure",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Infant, Newborn",
        "Infant, Low Birth Weight",
        "Infant, Small for Gestational Age",
        "Infant, Premature",
        "Respiratory Distress Syndrome (RDS)",
        "Sepsis",
        "Pneumonia",
        "Hypertension, Pulmonary"
      ],
      "interventions": [
        {
          "name": "Inhaled nitric oxide",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NICHD Neonatal Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "120 Hours",
        "sex": "ALL",
        "summary": "Up to 120 Hours"
      },
      "enrollment_count": 420,
      "start_date": "2001-01",
      "completion_date": "2006-05",
      "has_results": false,
      "last_update_posted_date": "2017-09-26",
      "last_synced_at": "2026-10-13T07:03:33.132Z",
      "location_count": 17,
      "location_summary": "Birmingham, Alabama • Palo Alto, California • San Diego, California + 14 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00016523"
    },
    {
      "nct_id": "NCT03399604",
      "title": "Investigation of the Safety and Pharmacology of Dry Powder Inhalation of Treprostinil",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Primary Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "LIQ861 Inhaled Treprostinil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Liquidia Technologies, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 121,
      "start_date": "2018-01-02",
      "completion_date": "2019-11-25",
      "has_results": true,
      "last_update_posted_date": "2024-07-30",
      "last_synced_at": "2026-10-13T07:03:33.132Z",
      "location_count": 38,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Sacramento, California + 30 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03399604"
    },
    {
      "nct_id": "NCT02868983",
      "title": "Integrating Behavioral Health and Primary Care for Comorbid Behavioral and Medical Problems",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Arthritis",
        "Asthma",
        "Chronic Obstructive Lung Disease",
        "Diabetes",
        "Heart Failure",
        "Hypertension",
        "Anxiety",
        "Chronic Pain",
        "Depression",
        "Fibromyalgia",
        "Insomnia",
        "Irritable Bowel Syndrome",
        "Problem Drinking",
        "Substance Use Disorder"
      ],
      "interventions": [
        {
          "name": "Integration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Vermont",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4025,
      "start_date": "2016-04",
      "completion_date": "2021-09-30",
      "has_results": false,
      "last_update_posted_date": "2021-10-05",
      "last_synced_at": "2026-10-13T07:03:33.132Z",
      "location_count": 1,
      "location_summary": "Burlington, Vermont",
      "locations": [
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02868983"
    },
    {
      "nct_id": "NCT03683186",
      "title": "A Study Evaluating the Long-Term Efficacy and Safety of Ralinepag in Subjects With PAH Via an Open-Label Extension",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "PAH",
        "Pulmonary Hypertension",
        "Pulmonary Arterial Hypertension",
        "Hypertension",
        "Connective Tissue Diseases",
        "Familial Primary Pulmonary Hypertension",
        "Vascular Diseases",
        "Cardiovascular Diseases",
        "Hypertension, Pulmonary",
        "Lung Diseases",
        "Respiratory Tract Disease"
      ],
      "interventions": [
        {
          "name": "Ralinepag",
          "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": 1000,
      "start_date": "2019-09-23",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-10-06",
      "last_synced_at": "2026-10-13T07:03:33.132Z",
      "location_count": 48,
      "location_summary": "Phoenix, Arizona • Tucson, Arizona • La Jolla, California + 38 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03683186"
    },
    {
      "nct_id": "NCT00722254",
      "title": "Reversible Secondary Myelofibrosis or Clonal Myeloproliferative Disorder",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Primary Myelofibrosis",
        "Primary Pulmonary Hypertension",
        "Secondary Myelofibrosis",
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2006-06",
      "completion_date": "2009-02",
      "has_results": false,
      "last_update_posted_date": "2016-03-21",
      "last_synced_at": "2026-10-13T07:03:33.132Z",
      "location_count": 2,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00722254"
    }
  ]
}