{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=donepezil+HCL",
    "query": {
      "intervention": "donepezil HCL"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 149,
    "total_pages": 15,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=donepezil+HCL&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-10T20:11:02.014Z",
  "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": "NCT06285240",
      "title": "Efficacy and Safety of MK-1167 in Participants With Alzheimer's Disease Dementia Taking Stable Donepezil Treatment (MK-1167-007)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Alzheimer's Disease"
      ],
      "interventions": [
        {
          "name": "MK-1167",
          "type": "DRUG"
        },
        {
          "name": "Donepezil",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "50 Years to 90 Years"
      },
      "enrollment_count": 28,
      "start_date": "2024-03-28",
      "completion_date": "2024-09-23",
      "has_results": true,
      "last_update_posted_date": "2025-10-14",
      "last_synced_at": "2026-09-10T20:11:02.014Z",
      "location_count": 3,
      "location_summary": "Hallandale, Florida • Decatur, Georgia • Savannah, Georgia",
      "locations": [
        {
          "city": "Hallandale",
          "state": "Florida"
        },
        {
          "city": "Decatur",
          "state": "Georgia"
        },
        {
          "city": "Savannah",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06285240"
    },
    {
      "nct_id": "NCT00006349",
      "title": "Donepezil and Vitamin E to Prevent Side Effects Caused By Radiation Therapy to the Head in Patients Receiving Treatment for Small Cell Lung Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Cognitive/Functional Effects",
        "Delirium",
        "Depression",
        "Lung Cancer",
        "Radiation Toxicity"
      ],
      "interventions": [
        {
          "name": "vitamin E",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "donepezil hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 9,
      "start_date": "2001-02",
      "completion_date": "2007-01",
      "has_results": false,
      "last_update_posted_date": "2016-07-13",
      "last_synced_at": "2026-09-10T20:11:02.014Z",
      "location_count": 15,
      "location_summary": "Scottsdale, Arizona • Jacksonville, Florida • Peoria, Illinois + 12 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        },
        {
          "city": "Urbana",
          "state": "Illinois"
        },
        {
          "city": "Cedar Rapids",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006349"
    },
    {
      "nct_id": "NCT00070161",
      "title": "Phase II Studies Of Donepezil And Ginkgo Biloba In Irradiated Brain Tumor",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Brain and Central Nervous System Tumors",
        "Radiation Toxicity"
      ],
      "interventions": [
        {
          "name": "EGb761",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "donepezil hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "cognitive assessment",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 68,
      "start_date": "2001-07-01",
      "completion_date": "2012-08-01",
      "has_results": false,
      "last_update_posted_date": "2021-09-09",
      "last_synced_at": "2026-09-10T20:11:02.014Z",
      "location_count": 4,
      "location_summary": "Phoenix, Arizona • Rome, Georgia • Winston-Salem, North Carolina + 1 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Rome",
          "state": "Georgia"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        },
        {
          "city": "Spartanburg",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00070161"
    },
    {
      "nct_id": "NCT00754013",
      "title": "Evaluating The Efficacy And Safety Of Donepezil Hydrochloride (Aricept) In The Treatment Of The Cognitive Dysfunction Exhibited By Children With Down Syndrome, Aged 6 To 10",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Down Syndrome",
        "Cognitive Dysfunction"
      ],
      "interventions": [
        {
          "name": "Aricept (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": "10 Years",
        "sex": "ALL",
        "summary": "6 Years to 10 Years"
      },
      "enrollment_count": 9,
      "start_date": "2008-09",
      "completion_date": "2008-12",
      "has_results": true,
      "last_update_posted_date": "2020-01-28",
      "last_synced_at": "2026-09-10T20:11:02.014Z",
      "location_count": 2,
      "location_summary": "San Antonio, Texas • Herndon, Virginia",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        },
        {
          "city": "Herndon",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00754013"
    },
    {
      "nct_id": "NCT00428090",
      "title": "Rosiglitazone (Extended Release Tablets) As Monotherapy In Subjects With Mild To Moderate Alzheimer's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Alzheimer's Disease"
      ],
      "interventions": [
        {
          "name": "Rosiglitazone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "50 Years to 90 Years"
      },
      "enrollment_count": 862,
      "start_date": "2007-02-27",
      "completion_date": "2008-09-05",
      "has_results": true,
      "last_update_posted_date": "2017-05-19",
      "last_synced_at": "2026-09-10T20:11:02.014Z",
      "location_count": 41,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Newport Beach, California + 34 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Reseda",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00428090"
    },
    {
      "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": "2026-09-10T20:11:02.014Z",
      "location_count": 1,
      "location_summary": "Santa Ana, California",
      "locations": [
        {
          "city": "Santa Ana",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00566501"
    },
    {
      "nct_id": "NCT02585934",
      "title": "Study Evaluating Intepirdine (RVT-101) in Subjects With Mild to Moderate Alzheimer's Disease on Donepezil: MINDSET Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Alzheimer's Disease"
      ],
      "interventions": [
        {
          "name": "RVT-101",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Axovant Sciences Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "50 Years to 85 Years"
      },
      "enrollment_count": 1315,
      "start_date": "2015-10",
      "completion_date": "2017-09",
      "has_results": true,
      "last_update_posted_date": "2018-12-05",
      "last_synced_at": "2026-09-10T20:11:02.014Z",
      "location_count": 61,
      "location_summary": "Phoenix, Arizona • Tucson, Arizona • Encino, California + 53 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Encino",
          "state": "California"
        },
        {
          "city": "Fullerton",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02585934"
    },
    {
      "nct_id": "NCT02087865",
      "title": "Effects of Donepezil HCL on Task-Activated fMRI Brain Activation in Healthy Older Adults at Genetic Risk for Alzheimer's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Genetic Risk for Alzheimer's Disease"
      ],
      "interventions": [
        {
          "name": "donepezil HCL",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "60 Years to 75 Years"
      },
      "enrollment_count": 89,
      "start_date": "2014-05",
      "completion_date": "2021-12-20",
      "has_results": true,
      "last_update_posted_date": "2023-08-30",
      "last_synced_at": "2026-09-10T20:11:02.014Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02087865"
    },
    {
      "nct_id": "NCT02769065",
      "title": "Study of TAK-071 in Healthy Participants and Participants With Mild Cognitive Impairment/Mild Alzheimer Disease and Relative Bioavailability (BA) and Food Effect of TAK-071 in Healthy Participants",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Alzheimer Disease",
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "TAK-071",
          "type": "DRUG"
        },
        {
          "name": "Donepezil",
          "type": "DRUG"
        },
        {
          "name": "TAK-071 Placebo",
          "type": "DRUG"
        },
        {
          "name": "Donepezil Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Takeda",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 179,
      "start_date": "2016-05-05",
      "completion_date": "2017-06-08",
      "has_results": true,
      "last_update_posted_date": "2019-06-10",
      "last_synced_at": "2026-09-10T20:11:02.014Z",
      "location_count": 1,
      "location_summary": "Glendale, California",
      "locations": [
        {
          "city": "Glendale",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02769065"
    },
    {
      "nct_id": "NCT06518941",
      "title": "An Open Trial of a Novel Pharmacotherapy for Habit Modification in Anorexia Nervosa",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anorexia Nervosa"
      ],
      "interventions": [
        {
          "name": "Donepezil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "New York State Psychiatric Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 10,
      "start_date": "2027-01",
      "completion_date": "2028-12",
      "has_results": false,
      "last_update_posted_date": "2026-08-03",
      "last_synced_at": "2026-09-10T20:11:02.014Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06518941"
    }
  ]
}