{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Polyphenols",
    "query": {
      "condition": "Polyphenols"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 92,
    "total_pages": 10,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Polyphenols&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T09:23:47.229Z",
  "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": "NCT02915237",
      "title": "Development of a Polyphenol-rich Dietary Preparation for Treating Veterans With Gulf War Illness",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Gulf War Illness"
      ],
      "interventions": [
        {
          "name": "Concord grape juice",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo Beverage",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 36,
      "start_date": "2016-08",
      "completion_date": "2019-01-17",
      "has_results": false,
      "last_update_posted_date": "2020-06-29",
      "last_synced_at": "2026-05-22T09:23:47.229Z",
      "location_count": 1,
      "location_summary": "East Orange, New Jersey",
      "locations": [
        {
          "city": "East Orange",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02915237"
    },
    {
      "nct_id": "NCT07109713",
      "title": "The Effect Cranberry-Based Products on the Female Microbiome",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaginal Microbiome",
        "Gut Microbiome",
        "Gut Health"
      ],
      "interventions": [
        {
          "name": "Active",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Ocean Spray Cranberries, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 60,
      "start_date": "2025-08-05",
      "completion_date": "2025-12-20",
      "has_results": false,
      "last_update_posted_date": "2025-08-14",
      "last_synced_at": "2026-05-22T09:23:47.229Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07109713"
    },
    {
      "nct_id": "NCT03201822",
      "title": "Intake-dependent Effect of Cocoa Flavanol Absorption, Metabolism and Excretion in Humans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "100 mg of Cocoa Flavanols/70 kg BW",
          "type": "OTHER"
        },
        {
          "name": "200 mg of Cocoa Flavanols/70 kg BW",
          "type": "OTHER"
        },
        {
          "name": "400 mg of Cocoa Flavanols/70 kg BW",
          "type": "OTHER"
        },
        {
          "name": "1000 mg of Cocoa Flavanols/70 kg BW",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "40 Years",
        "sex": "MALE",
        "summary": "25 Years to 40 Years · Male only"
      },
      "enrollment_count": 14,
      "start_date": "2013-04-01",
      "completion_date": "2013-05-25",
      "has_results": false,
      "last_update_posted_date": "2017-06-28",
      "last_synced_at": "2026-05-22T09:23:47.229Z",
      "location_count": 1,
      "location_summary": "Davis, California",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03201822"
    },
    {
      "nct_id": "NCT07453537",
      "title": "Cranberry Polyphenols and Stress Resilience During Multitasking in Healthy Adults",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stress Response",
        "Mental Stress",
        "Multitasking Behavior and Multitasking Ability",
        "Physiological Stress",
        "Cognitive Symptoms",
        "Motor Activity"
      ],
      "interventions": [
        {
          "name": "Cranberry juice",
          "type": "OTHER"
        },
        {
          "name": "Placebo juice",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "30 Years to 55 Years"
      },
      "enrollment_count": 84,
      "start_date": "2026-04-01",
      "completion_date": "2029-08-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-06",
      "last_synced_at": "2026-05-22T09:23:47.229Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07453537"
    },
    {
      "nct_id": "NCT02442804",
      "title": "Cognitive Impact of Pomegranate Polyphenols Following Ischemic Stroke",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Stroke"
      ],
      "interventions": [
        {
          "name": "POMx",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Loma Linda University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 16,
      "start_date": "2015-06",
      "completion_date": "2016-04",
      "has_results": true,
      "last_update_posted_date": "2017-08-02",
      "last_synced_at": "2026-05-22T09:23:47.229Z",
      "location_count": 1,
      "location_summary": "Loma Linda, California",
      "locations": [
        {
          "city": "Loma Linda",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02442804"
    },
    {
      "nct_id": "NCT04217122",
      "title": "Effect of Strawberry Consumption on the Microbiome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Microbiome"
      ],
      "interventions": [
        {
          "name": "strawberry powder",
          "type": "OTHER"
        },
        {
          "name": "placebo powder",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 30,
      "start_date": "2018-09-11",
      "completion_date": "2019-12-19",
      "has_results": false,
      "last_update_posted_date": "2020-01-07",
      "last_synced_at": "2026-05-22T09:23:47.229Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04217122"
    },
    {
      "nct_id": "NCT03004742",
      "title": "Flavonoid-rich Supplement Influence on the Human Metabolome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Inflammation"
      ],
      "interventions": [
        {
          "name": "Flavonoid",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Appalachian State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 65 Years · Female only"
      },
      "enrollment_count": 110,
      "start_date": "2015-08",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2017-02-02",
      "last_synced_at": "2026-05-22T09:23:47.229Z",
      "location_count": 1,
      "location_summary": "Kannapolis, North Carolina",
      "locations": [
        {
          "city": "Kannapolis",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03004742"
    },
    {
      "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": "2026-05-22T09:23:47.229Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03989271"
    },
    {
      "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": "2026-05-22T09:23:47.229Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01185067"
    },
    {
      "nct_id": "NCT02949115",
      "title": "Effects of Red Beetroot Juice on High-Fat Meal-Induced Endothelial Dysfunction and Cardiometabolic Disturbances",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Overweight",
        "Obesity",
        "Aging",
        "Menopause"
      ],
      "interventions": [
        {
          "name": "70 mL red beetroot juice",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "70 mL red beetroot juice without nitrate",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "70 mL placebo drink plus potassium nitrate",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "70 mL placebo drink",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Colorado State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "40 Years to 65 Years"
      },
      "enrollment_count": 15,
      "start_date": "2016-11",
      "completion_date": "2019-06",
      "has_results": false,
      "last_update_posted_date": "2018-11-13",
      "last_synced_at": "2026-05-22T09:23:47.229Z",
      "location_count": 1,
      "location_summary": "Fort Collins, Colorado",
      "locations": [
        {
          "city": "Fort Collins",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02949115"
    }
  ]
}