{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Quercetin",
    "query": {
      "intervention": "Quercetin"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 59,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Quercetin&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T13:53:38.465Z",
  "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": "NCT02652052",
      "title": "Hematopoietic Stem Cell Transplant Survivors Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Stem Cell Transplant"
      ],
      "interventions": [
        {
          "name": "Standard of Care - Observation Only",
          "type": "OTHER"
        },
        {
          "name": "Group 2: Quercetin",
          "type": "DRUG"
        },
        {
          "name": "Group 2: Dasatinib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "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": "2016-03-01",
      "completion_date": "2023-05-23",
      "has_results": false,
      "last_update_posted_date": "2025-01-15",
      "last_synced_at": "2026-09-03T13:53:38.465Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02652052"
    },
    {
      "nct_id": "NCT07628972",
      "title": "Quercetin Dyskeratosis Congenita (DC)/Telomere Biology Disorders (TBD)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Dyskeratosis Congenita",
        "Telomere Disease"
      ],
      "interventions": [
        {
          "name": "Quercetin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2026-05-29",
      "completion_date": "2028-09",
      "has_results": false,
      "last_update_posted_date": "2026-06-05",
      "last_synced_at": "2026-09-03T13:53:38.465Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07628972"
    },
    {
      "nct_id": "NCT00721643",
      "title": "Absorption Kinetics of Polyphenols in Angel's Plant (Angelica Keiskei)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Oxidative Stress"
      ],
      "interventions": [
        {
          "name": "Angel's plant (Angelica keiskei)",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Tufts University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2008-07",
      "completion_date": "2010-12",
      "has_results": false,
      "last_update_posted_date": "2017-04-25",
      "last_synced_at": "2026-09-03T13:53:38.465Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00721643"
    },
    {
      "nct_id": "NCT07270120",
      "title": "Senolytics for Secondary Progressive MS",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Multiple Sclerosis (MS) Secondary Progressive"
      ],
      "interventions": [
        {
          "name": "Dasatinib and quercetin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "50 Years to 85 Years"
      },
      "enrollment_count": 30,
      "start_date": "2026-01-15",
      "completion_date": "2028-01-15",
      "has_results": false,
      "last_update_posted_date": "2025-12-08",
      "last_synced_at": "2026-09-03T13:53:38.465Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07270120"
    },
    {
      "nct_id": "NCT03989271",
      "title": "Biological Effects of Quercetin in COPD",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "Quercetin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Temple University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 29,
      "start_date": "2019-10-01",
      "completion_date": "2025-07-01",
      "has_results": false,
      "last_update_posted_date": "2023-08-16",
      "last_synced_at": "2026-09-03T13:53:38.465Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03989271"
    },
    {
      "nct_id": "NCT04784234",
      "title": "Vision Preservation and Restoration Following a 6 Month Trial of GlaucoCetin",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Primary Open Angle Glaucoma"
      ],
      "interventions": [
        {
          "name": "GlaucoCetin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Wills Eye",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 12,
      "start_date": "2021-02-01",
      "completion_date": "2022-10-27",
      "has_results": false,
      "last_update_posted_date": "2025-12-23",
      "last_synced_at": "2026-09-03T13:53:38.465Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04784234"
    },
    {
      "nct_id": "NCT05371340",
      "title": "Quercetin's Effect on Bone Health and Inflammatory Markers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoporosis, Postmenopausal"
      ],
      "interventions": [
        {
          "name": "Quercetin (500 mg)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo (500 mg)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Kennesaw State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "45 Years to 75 Years · Female only"
      },
      "enrollment_count": 33,
      "start_date": "2019-08-27",
      "completion_date": "2020-04-27",
      "has_results": false,
      "last_update_posted_date": "2022-05-12",
      "last_synced_at": "2026-09-03T13:53:38.465Z",
      "location_count": 1,
      "location_summary": "Kennesaw, Georgia",
      "locations": [
        {
          "city": "Kennesaw",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05371340"
    },
    {
      "nct_id": "NCT04252625",
      "title": "Trial of Quercetin, Bromelain, Rye Flower Pollen & Papain on Reducing Severity of Radiation-Induced Prostatitis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Adenocarcinoma"
      ],
      "interventions": [
        {
          "name": "Q-Urol",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 10,
      "start_date": "2022-11-14",
      "completion_date": "2024-01-25",
      "has_results": true,
      "last_update_posted_date": "2026-01-28",
      "last_synced_at": "2026-09-03T13:53:38.465Z",
      "location_count": 2,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04252625"
    },
    {
      "nct_id": "NCT02463357",
      "title": "Three New Ideas to Protect Special Forces From the Stress of High Altitude",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Mountain Sickness"
      ],
      "interventions": [
        {
          "name": "Quercetin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Nifedipine extended release",
          "type": "DRUG"
        },
        {
          "name": "Methazolamide",
          "type": "DRUG"
        },
        {
          "name": "Metformin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Nitrite",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "MALE",
        "summary": "18 Years to 30 Years · Male only"
      },
      "enrollment_count": 148,
      "start_date": "2015-08",
      "completion_date": "2016-09",
      "has_results": true,
      "last_update_posted_date": "2021-03-30",
      "last_synced_at": "2026-09-03T13:53:38.465Z",
      "location_count": 1,
      "location_summary": "Alma, Michigan",
      "locations": [
        {
          "city": "Alma",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02463357"
    },
    {
      "nct_id": "NCT01185067",
      "title": "Physiological Effects of Grape Seed Extract in Diastolic Heart Failure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Diastolic Heart Failure",
        "Hypertensive Heart Disease",
        "Heart Failure With Preserved Ejection Fraction",
        "Hypertension",
        "Oxidative Stress"
      ],
      "interventions": [
        {
          "name": "grape seed extract (MegaNatural BP, Polyphenolics, Inc.)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2010-10",
      "completion_date": "2014-02-24",
      "has_results": false,
      "last_update_posted_date": "2017-06-06",
      "last_synced_at": "2026-09-03T13:53:38.465Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01185067"
    }
  ]
}