{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Eisai+Limited",
    "query": {
      "sponsor": "Eisai Limited"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 13,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Eisai+Limited&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-29T13:49:24.447Z",
  "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": "NCT00566501",
      "title": "Open-Label Extension Study of 23 mg Donepezil SR in Participants With Moderate to Severe Alzheimer's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Alzheimer's Disease"
      ],
      "interventions": [
        {
          "name": "Donepezil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eisai Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "91 Years",
        "sex": "ALL",
        "summary": "45 Years to 91 Years"
      },
      "enrollment_count": 915,
      "start_date": "2007-12-14",
      "completion_date": "2010-04-01",
      "has_results": true,
      "last_update_posted_date": "2021-11-17",
      "last_synced_at": "2026-09-29T13:49:24.447Z",
      "location_count": 1,
      "location_summary": "Santa Ana, California",
      "locations": [
        {
          "city": "Santa Ana",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00566501"
    },
    {
      "nct_id": "NCT00246090",
      "title": "A Phase II Study of E7389 in Patients With Breast Cancer, Previously Treated With Anthracycline, Taxane and Capecitabine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "E7389",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eisai Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 298,
      "start_date": "2005-10",
      "completion_date": "2007-09",
      "has_results": true,
      "last_update_posted_date": "2014-07-14",
      "last_synced_at": "2026-09-29T13:49:24.447Z",
      "location_count": 60,
      "location_summary": "Birmingham, Alabama • Hot Springs, Arkansas • Little Rock, Arkansas + 48 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Hot Springs",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "La Verne",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00246090"
    },
    {
      "nct_id": "NCT00505284",
      "title": "An Evaluation of the Efficacy and Safety of E2007 in Patients With Painful Diabetic Neuropathy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Diabetic Neuropathy"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "E2007 (2 mg)",
          "type": "DRUG"
        },
        {
          "name": "E2007 (4 mg)",
          "type": "DRUG"
        },
        {
          "name": "E2007 (6 mg)",
          "type": "DRUG"
        },
        {
          "name": "E2007 (8 mg)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eisai Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 352,
      "start_date": "2007-06",
      "completion_date": "2008-07",
      "has_results": true,
      "last_update_posted_date": "2014-07-11",
      "last_synced_at": "2026-09-29T13:49:24.447Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00505284"
    },
    {
      "nct_id": "NCT01419977",
      "title": "Treatment of Sickle Cell Patients Hospitalized in Pain Crisis With Prophylactic Dose Low-molecular-weight Heparin (LMWH) Versus Placebo",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Sickle Cell Disease",
        "Vaso-occlusive Crisis"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Dalteparin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 34,
      "start_date": "2011-05",
      "completion_date": "2014-07",
      "has_results": true,
      "last_update_posted_date": "2015-02-16",
      "last_synced_at": "2026-09-29T13:49:24.447Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01419977"
    },
    {
      "nct_id": "NCT06043700",
      "title": "A Community-Based Screening Program to Identify Participants at High Risk for Amyloid Pathology",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Alzheimer's Disease"
      ],
      "interventions": [
        {
          "name": "No Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Eisai Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "50 Years to 80 Years"
      },
      "enrollment_count": 2000,
      "start_date": "2023-09-12",
      "completion_date": "2028-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-03-05",
      "last_synced_at": "2026-09-29T13:49:24.447Z",
      "location_count": 3,
      "location_summary": "Clermont, Florida • Lady Lake, Florida • District Heights, Maryland",
      "locations": [
        {
          "city": "Clermont",
          "state": "Florida"
        },
        {
          "city": "Lady Lake",
          "state": "Florida"
        },
        {
          "city": "District Heights",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06043700"
    },
    {
      "nct_id": "NCT04986579",
      "title": "Scalp Cooling in MBC",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Metastatic Breast Cancer",
        "Chemotherapy-induced Alopecia"
      ],
      "interventions": [
        {
          "name": "Paxman Scalp Cooling System",
          "type": "DEVICE"
        },
        {
          "name": "Eribulin",
          "type": "DRUG"
        },
        {
          "name": "Sacituzumab govitecan",
          "type": "DRUG"
        },
        {
          "name": "Trastuzumab deruxtecan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2021-10-07",
      "completion_date": "2030-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-18",
      "last_synced_at": "2026-09-29T13:49:24.447Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04986579"
    },
    {
      "nct_id": "NCT01871727",
      "title": "A Trial of E7777 in Persistent and Recurrent Cutaneous T-Cell Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Persistent or Recurrent Cutaneous T-Cell Lymphoma"
      ],
      "interventions": [
        {
          "name": "E7777 9 mcg/kg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eisai Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 112,
      "start_date": "2013-05-30",
      "completion_date": "2021-12-14",
      "has_results": true,
      "last_update_posted_date": "2024-11-13",
      "last_synced_at": "2026-09-29T13:49:24.447Z",
      "location_count": 18,
      "location_summary": "Birmingham, Alabama • Little Rock, Arkansas • Duarte, California + 12 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01871727"
    },
    {
      "nct_id": "NCT00688376",
      "title": "Efficacy and Safety of Donepezil Hydrochloride in Preadolescent and Adolescent Children With Attention Impairment Following Cancer Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Attention Impairment"
      ],
      "interventions": [
        {
          "name": "Donepezil hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eisai Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "6 Years to 17 Years"
      },
      "enrollment_count": 72,
      "start_date": "2008-07-02",
      "completion_date": "2009-05-26",
      "has_results": true,
      "last_update_posted_date": "2022-01-05",
      "last_synced_at": "2026-09-29T13:49:24.447Z",
      "location_count": 13,
      "location_summary": "Stanford, California • Miami, Florida • Minneapolis, Minnesota + 10 more",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00688376"
    },
    {
      "nct_id": "NCT00388726",
      "title": "E7389 Versus Treatment of Physician's Choice in Patients With Locally Recurrent or Metastatic Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "E7389",
          "type": "DRUG"
        },
        {
          "name": "Physician's Choice",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eisai Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 762,
      "start_date": "2006-11",
      "completion_date": "2013-06",
      "has_results": true,
      "last_update_posted_date": "2020-01-07",
      "last_synced_at": "2026-09-29T13:49:24.447Z",
      "location_count": 32,
      "location_summary": "Birmingham, Alabama • Bellflower, California • Gilroy, California + 29 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Bellflower",
          "state": "California"
        },
        {
          "city": "Gilroy",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Davie",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00388726"
    },
    {
      "nct_id": "NCT02432274",
      "title": "Study of Lenvatinib in Children and Adolescents With Refractory or Relapsed Solid Malignancies and Young Adults With Osteosarcoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Tumors",
        "Solid Malignant Tumors",
        "Osteosarcoma",
        "Differentiated Thyroid Cancer (DTC)"
      ],
      "interventions": [
        {
          "name": "Lenvatinib",
          "type": "DRUG"
        },
        {
          "name": "Ifosfamide",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eisai Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "2 Years to 25 Years"
      },
      "enrollment_count": 117,
      "start_date": "2014-12-29",
      "completion_date": "2022-07-20",
      "has_results": true,
      "last_update_posted_date": "2023-07-11",
      "last_synced_at": "2026-09-29T13:49:24.447Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02432274"
    }
  ]
}