{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hypoxia+Inducible+Factor+%28HIF%29",
    "query": {
      "condition": "Hypoxia Inducible Factor (HIF)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 26,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hypoxia+Inducible+Factor+%28HIF%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T08:15:28.069Z",
  "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": "NCT02260193",
      "title": "16-Week Repeat Oral Dose Study of AKB-6548 for Anemia in Participants With End Stage Renal Disease (ESRD) Requiring Chronic Hemodialysis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anemia",
        "End Stage Renal Disease"
      ],
      "interventions": [
        {
          "name": "AKB-6548",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Akebia Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "18 Years to 79 Years"
      },
      "enrollment_count": 94,
      "start_date": "2014-09-10",
      "completion_date": "2015-07-22",
      "has_results": true,
      "last_update_posted_date": "2022-07-01",
      "last_synced_at": "2026-05-22T08:15:28.069Z",
      "location_count": 16,
      "location_summary": "El Granada, California • Long Beach, California • San Dimas, California + 13 more",
      "locations": [
        {
          "city": "El Granada",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "San Dimas",
          "state": "California"
        },
        {
          "city": "Santa Clarita",
          "state": "California"
        },
        {
          "city": "Whittier",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02260193"
    },
    {
      "nct_id": "NCT05082584",
      "title": "Study to Evaluate the Safety and Efficacy of Oral Vadadustat in Pediatric Participants With Anemia of Chronic Kidney Disease Naive to Erythropoiesis-Stimulating Agents",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Anemia of Chronic Kidney Disease"
      ],
      "interventions": [
        {
          "name": "Vadadustat",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Akebia Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Months",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "4 Months to 16 Years"
      },
      "enrollment_count": 0,
      "start_date": "2025-01",
      "completion_date": "2026-10",
      "has_results": false,
      "last_update_posted_date": "2025-10-01",
      "last_synced_at": "2026-05-22T08:15:28.069Z",
      "location_count": 1,
      "location_summary": "Hackensack, New Jersey",
      "locations": [
        {
          "city": "Hackensack",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05082584"
    },
    {
      "nct_id": "NCT05239728",
      "title": "A Study of Belzutifan (MK-6482) Plus Pembrolizumab (MK-3475) Versus Placebo Plus Pembrolizumab in Participants With Clear Cell Renal Cell Carcinoma Post Nephrectomy (MK-6482-022)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Carcinoma, Renal Cell"
      ],
      "interventions": [
        {
          "name": "Belzutifan",
          "type": "DRUG"
        },
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1800,
      "start_date": "2022-03-15",
      "completion_date": "2029-09-28",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-05-22T08:15:28.069Z",
      "location_count": 37,
      "location_summary": "Phoenix, Arizona • Duarte, California • La Jolla, California + 31 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05239728"
    },
    {
      "nct_id": "NCT03639155",
      "title": "A Study in Evaluating Bioequivalence Between Test and Reference Formulations of Vadadustat Tablets in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "vadadustat reference tablets",
          "type": "DRUG"
        },
        {
          "name": "vadadustat test tablets",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Akebia Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 50,
      "start_date": "2018-04-12",
      "completion_date": "2018-05-23",
      "has_results": false,
      "last_update_posted_date": "2019-03-22",
      "last_synced_at": "2026-05-22T08:15:28.069Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03639155"
    },
    {
      "nct_id": "NCT02648347",
      "title": "Study to Evaluate Vadadustat for the Correction of Anemia in Participants With Non-dialysis-dependent Chronic Kidney Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Anemia",
        "Non-Dialysis-Dependent Chronic Kidney Disease"
      ],
      "interventions": [
        {
          "name": "Vadadustat",
          "type": "DRUG"
        },
        {
          "name": "Darbepoetin alfa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Akebia Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1751,
      "start_date": "2015-12",
      "completion_date": "2020-07-31",
      "has_results": true,
      "last_update_posted_date": "2022-06-27",
      "last_synced_at": "2026-05-22T08:15:28.069Z",
      "location_count": 208,
      "location_summary": "Huntsville, Alabama • Tuscumbia, Alabama • Glendale, Arizona + 148 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Tuscumbia",
          "state": "Alabama"
        },
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02648347"
    },
    {
      "nct_id": "NCT02892149",
      "title": "Efficacy and Safety Study to Evaluate Vadadustat for the Maintenance Treatment of Anemia in Participants With Dialysis-dependent Chronic Kidney Disease (DD-CKD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Anemia",
        "Dialysis-Dependent Chronic Kidney Disease"
      ],
      "interventions": [
        {
          "name": "Vadadustat",
          "type": "DRUG"
        },
        {
          "name": "Darbepoetin alfa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Akebia Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3554,
      "start_date": "2016-08",
      "completion_date": "2020-03-30",
      "has_results": true,
      "last_update_posted_date": "2022-06-28",
      "last_synced_at": "2026-05-22T08:15:28.069Z",
      "location_count": 127,
      "location_summary": "Huntsville, Alabama • Mesa, Arizona • Pine Bluff, Arkansas + 95 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Pine Bluff",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Bakersfield",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02892149"
    },
    {
      "nct_id": "NCT04195750",
      "title": "A Study of Belzutifan (MK-6482) Versus Everolimus in Participants With Advanced Renal Cell Carcinoma (MK-6482-005)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Carcinoma, Renal Cell"
      ],
      "interventions": [
        {
          "name": "Belzutifan",
          "type": "DRUG"
        },
        {
          "name": "Everolimus",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 755,
      "start_date": "2020-02-27",
      "completion_date": "2026-09-17",
      "has_results": true,
      "last_update_posted_date": "2026-05-14",
      "last_synced_at": "2026-05-22T08:15:28.069Z",
      "location_count": 29,
      "location_summary": "Birmingham, Alabama • La Jolla, California • Santa Rosa, California + 23 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Santa Rosa",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Highlands Ranch",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04195750"
    },
    {
      "nct_id": "NCT05468697",
      "title": "A Study of Belzutifan (MK-6482) in Combination With Palbociclib Versus Belzutifan Monotherapy in Participants With Advanced Renal Cell Carcinoma (MK-6482-024/LITESPARK-024)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Renal Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Belzutifan",
          "type": "DRUG"
        },
        {
          "name": "Palbociclib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2022-08-10",
      "completion_date": "2026-07-21",
      "has_results": false,
      "last_update_posted_date": "2026-01-23",
      "last_synced_at": "2026-05-22T08:15:28.069Z",
      "location_count": 4,
      "location_summary": "Washington D.C., District of Columbia • Chicago, Illinois • Boston, Massachusetts + 1 more",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05468697"
    },
    {
      "nct_id": "NCT05935748",
      "title": "Ph2 Study NKT2152 With Palbociclib & Sasanlimab in Subjects With Advanced Clear Cell Renal Cell Carcinoma (ccRcc)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "ccRCC",
        "Clear Cell Renal Cell Carcinoma",
        "Kidney Cancer",
        "Kidney Neoplasms",
        "Renal Cancer",
        "Renal Neoplasms",
        "Recurrent Renal Cell Carcinoma",
        "Metastatic Renal Cell Carcinoma",
        "Refractory Renal Cell Carcinoma",
        "Advanced Renal Cell Carcinoma",
        "Carcinoma",
        "Neoplasms",
        "Carcinoma, Renal Cell",
        "Neoplasms, Glandular and Epithelial",
        "Neoplasm by Histology",
        "Adenocarcinoma",
        "Urologic Neoplasms",
        "Urogenital Neoplasms",
        "Neoplasms by Site",
        "Kidney Diseases",
        "Urologic Diseases"
      ],
      "interventions": [
        {
          "name": "NKT2152",
          "type": "DRUG"
        },
        {
          "name": "palbociclib",
          "type": "DRUG"
        },
        {
          "name": "sasanlimab",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "NiKang Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 18,
      "start_date": "2023-07-28",
      "completion_date": "2025-09-04",
      "has_results": false,
      "last_update_posted_date": "2025-11-12",
      "last_synced_at": "2026-05-22T08:15:28.069Z",
      "location_count": 8,
      "location_summary": "La Jolla, California • Chicago, Illinois • Boston, Massachusetts + 5 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05935748"
    },
    {
      "nct_id": "NCT03634540",
      "title": "A Trial of Belzutifan (PT2977, MK-6482) in Combination With Cabozantinib in Patients With Clear Cell Renal Cell Carcinoma (ccRCC) (MK-6482-003)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Renal Cell Carcinoma (RCC)",
        "Clear Cell Renal Cell Carcinoma (ccRCC)",
        "Kidney Cancer",
        "Renal Cancer",
        "Renal Cell Carcinoma",
        "Renal Cell Cancer Metastatic",
        "Renal Cell Carcinoma Recurrent",
        "Renal Cell Cancer, Recurrent",
        "Kidney"
      ],
      "interventions": [
        {
          "name": "Belzutifan",
          "type": "DRUG"
        },
        {
          "name": "Cabozantinib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Peloton Therapeutics, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 118,
      "start_date": "2018-09-27",
      "completion_date": "2027-02-26",
      "has_results": false,
      "last_update_posted_date": "2024-12-20",
      "last_synced_at": "2026-05-22T08:15:28.069Z",
      "location_count": 10,
      "location_summary": "Los Angeles, California • Miami, Florida • Boston, Massachusetts + 5 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03634540"
    }
  ]
}