{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=United+Therapeutics",
    "query": {
      "sponsor": "United Therapeutics"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 135,
    "total_pages": 14,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=United+Therapeutics&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-04T15:24:56.640Z",
  "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": "NCT07612488",
      "title": "A Study of CS231295 in Patients With Advanced Solid Tumors",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Advance Solid Tumors",
        "Advanced Malignant Solid Tumors"
      ],
      "interventions": [
        {
          "name": "a small molecular multi-target kinase inhibitor",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ThalassaX Therapeutics United States Ltd",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 42,
      "start_date": "2026-06",
      "completion_date": "2028-12",
      "has_results": false,
      "last_update_posted_date": "2026-05-28",
      "last_synced_at": "2026-10-04T15:24:56.640Z",
      "location_count": 4,
      "location_summary": "Denver, Colorado • Sarasota, Florida • Boston, Massachusetts + 1 more",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07612488"
    },
    {
      "nct_id": "NCT00058929",
      "title": "A Transition Study From Flolan® to Remodulin® in Patients With Pulmonary Arterial Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension",
        "Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "treprostinil sodium",
          "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": 39,
      "start_date": "2002-10",
      "completion_date": "2005-08",
      "has_results": false,
      "last_update_posted_date": "2013-03-07",
      "last_synced_at": "2026-10-04T15:24:56.640Z",
      "location_count": 8,
      "location_summary": "Los Angeles, California • Torrance, California • Chicago, Illinois + 5 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00058929"
    },
    {
      "nct_id": "NCT01268553",
      "title": "Transition From Injectable Prostacyclin Medication to Inhaled Prostacyclin Medication",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "Treprostinil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 6,
      "start_date": "2010-08",
      "completion_date": "2016-10-05",
      "has_results": true,
      "last_update_posted_date": "2017-09-01",
      "last_synced_at": "2026-10-04T15:24:56.640Z",
      "location_count": 3,
      "location_summary": "Tucson, Arizona • San Francisco, California • Torrance, California",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01268553"
    },
    {
      "nct_id": "NCT05564637",
      "title": "A Study of Treprostinil to Treat Interstitial Lung Disease Pulmonary Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension",
        "Interstitial Lung Disease",
        "Healthy Adults"
      ],
      "interventions": [
        {
          "name": "Treprostinil",
          "type": "DRUG"
        },
        {
          "name": "Right Heart Catheterization (RHC) while exercising",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Optional Muscle Biopsy",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 29,
      "start_date": "2023-03-13",
      "completion_date": "2024-10-30",
      "has_results": true,
      "last_update_posted_date": "2025-12-03",
      "last_synced_at": "2026-10-04T15:24:56.640Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05564637"
    },
    {
      "nct_id": "NCT05340426",
      "title": "Porcine Kidney Xenotransplantation in Patients With End-Stage Kidney Disease",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Kidney Failure, Chronic"
      ],
      "interventions": [
        {
          "name": "UKidney",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 0,
      "start_date": "2024-01-31",
      "completion_date": "2029-06-30",
      "has_results": false,
      "last_update_posted_date": "2024-02-01",
      "last_synced_at": "2026-10-04T15:24:56.640Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05340426"
    },
    {
      "nct_id": "NCT01884038",
      "title": "Safety and Efficacy of Perioperative Remodulin® in Orthotopic Liver Transplant Recipients",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Liver Transplant"
      ],
      "interventions": [
        {
          "name": "treprostinil sodium",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "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": 0,
      "start_date": "2008-06",
      "completion_date": "2010-06",
      "has_results": false,
      "last_update_posted_date": "2023-12-19",
      "last_synced_at": "2026-10-04T15:24:56.640Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01884038"
    },
    {
      "nct_id": "NCT00760916",
      "title": "FREEDOM DR: Oral Treprostinil in Combination With an Endothelin Receptor Antagonist (ERA) and/or a Phosphodiesterase-5 (PDE-5) Inhibitor or as Monotherapy for the Treatment of Pulmonary Arterial Hypertension (PAH)",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "UT-15C 1 mg",
          "type": "DRUG"
        },
        {
          "name": "UT-15C 0.25 mg",
          "type": "DRUG"
        },
        {
          "name": "UT-15C 5 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "United Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 0,
      "start_date": "2008-12",
      "completion_date": "2009-01",
      "has_results": false,
      "last_update_posted_date": "2013-01-30",
      "last_synced_at": "2026-10-04T15:24:56.640Z",
      "location_count": 26,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • Sacramento, California + 19 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00760916"
    },
    {
      "nct_id": "NCT04341948",
      "title": "Treatment of Post-Operative Pain Following Orthopedic Surgery With SPRINT® Peripheral Nerve Stimulation (PNS) System",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postoperative Pain",
        "Total Knee Replacement",
        "Total Knee Arthroplasty",
        "Partial Knee Replacement"
      ],
      "interventions": [
        {
          "name": "SPRINT Peripheral Nerve Stimulation (PNS) System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "SPR Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 56,
      "start_date": "2020-08-06",
      "completion_date": "2024-06-27",
      "has_results": true,
      "last_update_posted_date": "2025-08-27",
      "last_synced_at": "2026-10-04T15:24:56.640Z",
      "location_count": 10,
      "location_summary": "Little Rock, Arkansas • San Diego, California • Gainesville, Florida + 7 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Newnan",
          "state": "Georgia"
        },
        {
          "city": "Evanston",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04341948"
    },
    {
      "nct_id": "NCT01260454",
      "title": "The Qutenza Patch as Treatment for Disabling Treprostinil (Remodulin) Infusion Site Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pulmonary Hypertension",
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "Qutenza (8% capsaicin)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "15 Years to 80 Years"
      },
      "enrollment_count": 6,
      "start_date": "2010-11",
      "completion_date": "2012-04",
      "has_results": true,
      "last_update_posted_date": "2016-04-21",
      "last_synced_at": "2026-10-04T15:24:56.640Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01260454"
    },
    {
      "nct_id": "NCT04090866",
      "title": "Cardiac Metabolic Remodeling After Pulmonary Vasodilator Therapy in Pulmonary Arterial Hypertension: A Pilot Study",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pulmonary Arterial Hypertension",
        "Right-Sided Heart Failure"
      ],
      "interventions": [
        {
          "name": "PET/MRI",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 2,
      "start_date": "2019-11-14",
      "completion_date": "2020-07-21",
      "has_results": false,
      "last_update_posted_date": "2020-07-27",
      "last_synced_at": "2026-10-04T15:24:56.640Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04090866"
    }
  ]
}