{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Kyowa+Kirin+Co.%2C+Ltd.",
    "query": {
      "sponsor": "Kyowa Kirin Co., Ltd."
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 73,
    "total_pages": 8,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Kyowa+Kirin+Co.%2C+Ltd.&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-09T09:37:15.337Z",
  "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": "NCT00346632",
      "title": "An Ascending Dose Study of KW-2449 in Acute Leukemias, Myelodysplastic Syndromes, and Chronic Myelogenous Leukemia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Acute Myelogenous Leukemia",
        "Acute Lymphoblastic Leukemia",
        "Myelodysplastic Syndromes",
        "Chronic Myelogenous Leukemia"
      ],
      "interventions": [
        {
          "name": "KW-2449",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kyowa Kirin, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 37,
      "start_date": "2006-06",
      "completion_date": "2008-04",
      "has_results": true,
      "last_update_posted_date": "2024-05-17",
      "last_synced_at": "2026-10-09T09:37:15.337Z",
      "location_count": 4,
      "location_summary": "Baltimore, Maryland • Princeton, New Jersey • New York, New York + 1 more",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Princeton",
          "state": "New Jersey"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00346632"
    },
    {
      "nct_id": "NCT02867007",
      "title": "KHK2455 Alone and in Combination With Mogamulizumab in Subjects With Locally Advanced or Metastatic Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Solid Tumor",
        "Cancer",
        "Carcinoma"
      ],
      "interventions": [
        {
          "name": "KHK2455",
          "type": "DRUG"
        },
        {
          "name": "Mogamulizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kyowa Kirin, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 36,
      "start_date": "2016-08",
      "completion_date": "2019-12-15",
      "has_results": false,
      "last_update_posted_date": "2024-04-25",
      "last_synced_at": "2026-10-09T09:37:15.337Z",
      "location_count": 3,
      "location_summary": "Tampa, Florida • Albuquerque, New Mexico • Houston, Texas",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02867007"
    },
    {
      "nct_id": "NCT02444793",
      "title": "A Study of PF-05082566 In Combination With Mogamulizumab In Patients With Advanced Solid Tumors",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Advanced/Metastatic Solid Tumors"
      ],
      "interventions": [
        {
          "name": "PF-05082566",
          "type": "DRUG"
        },
        {
          "name": "KW-0761",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2015-05",
      "completion_date": "2017-10",
      "has_results": true,
      "last_update_posted_date": "2019-02-27",
      "last_synced_at": "2026-10-09T09:37:15.337Z",
      "location_count": 21,
      "location_summary": "La Jolla, California • San Diego, California • Washington D.C., District of Columbia + 7 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02444793"
    },
    {
      "nct_id": "NCT04745234",
      "title": "Mogamulizumab Q4week Dosing in Participants With R/R CTCL",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cutaneous T-Cell Lymphoma, Relapsed",
        "Cutaneous T-Cell Lymphoma Refractory"
      ],
      "interventions": [
        {
          "name": "Mogamulizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kyowa Kirin, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 34,
      "start_date": "2021-08-16",
      "completion_date": "2025-05",
      "has_results": false,
      "last_update_posted_date": "2024-04-25",
      "last_synced_at": "2026-10-09T09:37:15.337Z",
      "location_count": 7,
      "location_summary": "Duarte, California • Irvine, California • Stanford, California + 4 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04745234"
    },
    {
      "nct_id": "NCT05027646",
      "title": "Study to Assess Bioequivalence and Adhesion Properties Between Two Granisetron Transdermal Patches.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "Sancuso - Part 1",
          "type": "DRUG"
        },
        {
          "name": "Sancuso - Part 2",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kyowa Kirin, Inc.",
      "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": 134,
      "start_date": "2021-07-06",
      "completion_date": "2022-01-19",
      "has_results": false,
      "last_update_posted_date": "2024-06-14",
      "last_synced_at": "2026-10-09T09:37:15.337Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05027646"
    },
    {
      "nct_id": "NCT02647866",
      "title": "Study of a Monoclonal Antibody KHK4083 in Moderate Ulcerative Colitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ulcerative Colitis",
        "Digestive System Diseases",
        "Colitis, Ulcerative",
        "Colitis",
        "Gastrointestinal Diseases",
        "Inflammatory Bowel Diseases",
        "Intestinal Diseases",
        "Colonic Diseases",
        "Autoimmune Disease",
        "Abdominal Pain"
      ],
      "interventions": [
        {
          "name": "KHK4083",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kyowa Kirin, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 66,
      "start_date": "2016-06",
      "completion_date": "2018-10",
      "has_results": true,
      "last_update_posted_date": "2024-04-26",
      "last_synced_at": "2026-10-09T09:37:15.337Z",
      "location_count": 1,
      "location_summary": "Greenville, South Carolina",
      "locations": [
        {
          "city": "Greenville",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02647866"
    },
    {
      "nct_id": "NCT00199342",
      "title": "A Study of a Monoclonal Antibody, KW-2871, in Patients With Advanced Melanoma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Stage IV Melanoma"
      ],
      "interventions": [
        {
          "name": "KW-2871",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kyowa Kirin, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 5,
      "start_date": "2004-11",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2024-05-03",
      "last_synced_at": "2026-10-09T09:37:15.337Z",
      "location_count": 2,
      "location_summary": "Birmingham, Alabama • Tampa, Florida",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00199342"
    },
    {
      "nct_id": "NCT00955045",
      "title": "A Long-Term, Safety Study With a Flexible Dose Range of KW-6002 in Patients With Motor Response Complications on Levodopa/Carbidopa Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "istradefylline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kyowa Kirin, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": null,
      "start_date": "2002-08",
      "completion_date": "2003-10",
      "has_results": false,
      "last_update_posted_date": "2024-04-25",
      "last_synced_at": "2026-10-09T09:37:15.337Z",
      "location_count": 1,
      "location_summary": "Princeton, New Jersey",
      "locations": [
        {
          "city": "Princeton",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00955045"
    },
    {
      "nct_id": "NCT00199446",
      "title": "Study of Istradefylline (KW-6002) for the Treatment of Restless Legs Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Sleep Disorder",
        "Restless Legs Syndrome"
      ],
      "interventions": [
        {
          "name": "Istradefylline (KW-6002)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kyowa Kirin, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 160,
      "start_date": "2005-07",
      "completion_date": "2006-10",
      "has_results": false,
      "last_update_posted_date": "2024-04-25",
      "last_synced_at": "2026-10-09T09:37:15.337Z",
      "location_count": 1,
      "location_summary": "Princeton, New Jersey",
      "locations": [
        {
          "city": "Princeton",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00199446"
    },
    {
      "nct_id": "NCT01340482",
      "title": "A Repeated Study of KRN23 in Adults With X-Linked Hypophosphatemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "X-linked Hypophosphatemia"
      ],
      "interventions": [
        {
          "name": "KRN23",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kyowa Kirin Co., Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 29,
      "start_date": "2011-04",
      "completion_date": "2013-10",
      "has_results": true,
      "last_update_posted_date": "2024-06-18",
      "last_synced_at": "2026-10-09T09:37:15.337Z",
      "location_count": 5,
      "location_summary": "San Francisco, California • New Haven, Connecticut • Indianapolis, Indiana + 2 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01340482"
    }
  ]
}