{
  "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": "2026-09-03T09:52:21.852Z",
  "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": "NCT07000734",
      "title": "Fortifying Healthy Behaviors, Optimizing Medical Therapies and Enhancing Cognitive Function in Older Adults-pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Aging",
        "Cognitive Decline",
        "Older Adults",
        "Cardiovascular",
        "Sedentary Behaviors",
        "Immune Senescence",
        "Motor Function"
      ],
      "interventions": [
        {
          "name": "Risk managment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Dasatinib",
          "type": "DRUG"
        },
        {
          "name": "Quercetin (dietary supplement)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Vortioxetine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "50 Years to 70 Years"
      },
      "enrollment_count": 23,
      "start_date": "2025-07-28",
      "completion_date": "2026-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-19",
      "last_synced_at": "2026-09-03T09:52:21.852Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07000734"
    },
    {
      "nct_id": "NCT05297032",
      "title": "Effects of Quercetin on Metabolic Health",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Quercetin",
        "Lipid Metabolism",
        "Aging"
      ],
      "interventions": [
        {
          "name": "Quercetin Phytosome",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Thorne HealthTech, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "20 Years to 70 Years"
      },
      "enrollment_count": 5,
      "start_date": "2022-03-24",
      "completion_date": "2022-09-02",
      "has_results": false,
      "last_update_posted_date": "2023-01-10",
      "last_synced_at": "2026-09-03T09:52:21.852Z",
      "location_count": 1,
      "location_summary": "Summerville, South Carolina",
      "locations": [
        {
          "city": "Summerville",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05297032"
    },
    {
      "nct_id": "NCT01722669",
      "title": "Quercetin PK/PD Study in Healthy Adults and Patients With Hypercoagulable States",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "isoquercetin or quercetin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Beth Israel Deaconess Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 38,
      "start_date": "2012-05",
      "completion_date": "2019-12",
      "has_results": true,
      "last_update_posted_date": "2020-10-12",
      "last_synced_at": "2026-09-03T09:52:21.852Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01722669"
    },
    {
      "nct_id": "NCT02998918",
      "title": "Effects of Short-term Curcumin and Multi-polyphenol Supplementation on the Anti-inflammatory Properties of HDL",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Inflammation",
        "Atherosclerosis",
        "Cardiovascular Disease"
      ],
      "interventions": [
        {
          "name": "PolyResveratrol Supplementation",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Curcumin Supplementation",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 21,
      "start_date": "2016-09",
      "completion_date": "2020-06",
      "has_results": true,
      "last_update_posted_date": "2023-11-18",
      "last_synced_at": "2026-09-03T09:52:21.852Z",
      "location_count": 1,
      "location_summary": "Columbia, South Carolina",
      "locations": [
        {
          "city": "Columbia",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02998918"
    },
    {
      "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": "2026-09-03T09:52:21.852Z",
      "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": "NCT06470061",
      "title": "RQC for the Prevention of Alzheimer's Disease and Retinal Amyloid-β",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Alzheimer Disease",
        "Mild Cognitive Impairment",
        "Cognitive Decline"
      ],
      "interventions": [
        {
          "name": "Resveratrol, Quercetin, and Curcumin (RQC)",
          "type": "DRUG"
        },
        {
          "name": "Curcumin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Zaparackas and Knepper LTD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "50 Years to 90 Years"
      },
      "enrollment_count": 200,
      "start_date": "2024-07",
      "completion_date": "2027-07",
      "has_results": false,
      "last_update_posted_date": "2024-06-26",
      "last_synced_at": "2026-09-03T09:52:21.852Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06470061"
    },
    {
      "nct_id": "NCT01376011",
      "title": "Modulation of Cerebral Blood Flow Using Quercetin, a Nutritional Supplement",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Stroke",
        "Problem of Aging"
      ],
      "interventions": [
        {
          "name": "quercetin/placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 106,
      "start_date": "2009-06",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2015-01-28",
      "last_synced_at": "2026-09-03T09:52:21.852Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01376011"
    },
    {
      "nct_id": "NCT06615752",
      "title": "Green Tea and Quercetin in Combination With Docetaxel Chemotherapy in Castration-resistant Prostate Cancer Patients",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Metastatic Castration-resistant Prostate Cancer (mCRPC)"
      ],
      "interventions": [
        {
          "name": "green tea and quercetin + docetaxel",
          "type": "DRUG"
        },
        {
          "name": "Placebo + docetaxel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Charles Drew University of Medicine and Science",
      "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": 99,
      "start_date": "2026-10",
      "completion_date": "2029-02",
      "has_results": false,
      "last_update_posted_date": "2026-04-15",
      "last_synced_at": "2026-09-03T09:52:21.852Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06615752"
    },
    {
      "nct_id": "NCT06683534",
      "title": "Palmitic Acid and Human Microvascular Function",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Microvascular Dysfunction",
        "Microvasculature",
        "Cardiovascular Diseases",
        "Cardiovascular Diseases (CVD)",
        "Microvascular Health",
        "Obesity and Overweight"
      ],
      "interventions": [
        {
          "name": "Quercetin (dietary supplement)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG"
      ],
      "sponsor": "Medical College of Wisconsin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 40,
      "start_date": "2026-07",
      "completion_date": "2030-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-29",
      "last_synced_at": "2026-09-03T09:52:21.852Z",
      "location_count": 1,
      "location_summary": "Wauwatosa, Wisconsin",
      "locations": [
        {
          "city": "Wauwatosa",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06683534"
    },
    {
      "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": "2026-09-03T09:52:21.852Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04784234"
    }
  ]
}