{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Freeze-dried+Blueberry",
    "query": {
      "intervention": "Freeze-dried Blueberry"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 31,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Freeze-dried+Blueberry&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-12T05:51:23.925Z",
  "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": "NCT02035592",
      "title": "The Health Effects of Blueberry Anthocyanins in Metabolic Syndrome (the CIRCLES-study)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Insulin Resistance",
        "Metabolic Syndrome X"
      ],
      "interventions": [
        {
          "name": "Full dose blueberry",
          "type": "OTHER"
        },
        {
          "name": "Half dose blueberry",
          "type": "OTHER"
        },
        {
          "name": "Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of East Anglia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "74 Years",
        "sex": "ALL",
        "summary": "50 Years to 74 Years"
      },
      "enrollment_count": 144,
      "start_date": "2014-01",
      "completion_date": "2016-11-07",
      "has_results": false,
      "last_update_posted_date": "2017-09-29",
      "last_synced_at": "2026-09-12T05:51:23.925Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02035592"
    },
    {
      "nct_id": "NCT00599508",
      "title": "Nutritional Supplementation in Cognitive Aging",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cognitive Aging"
      ],
      "interventions": [
        {
          "name": "Concord grape juice",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "placebo juice",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "blueberry juice",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "whole fruit blueberry powder",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "berry placebo powder",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "66 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "66 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2006-06",
      "completion_date": "2015-01",
      "has_results": false,
      "last_update_posted_date": "2016-10-10",
      "last_synced_at": "2026-09-12T05:51:23.925Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00599508"
    },
    {
      "nct_id": "NCT05817383",
      "title": "Berries, Bugs, and the Blues",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depressive Symptoms"
      ],
      "interventions": [
        {
          "name": "Freeze-dried Blueberry Powder",
          "type": "OTHER"
        },
        {
          "name": "Placebo Powder",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Hebrew SeniorLife",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2023-04-05",
      "completion_date": "2024-07-16",
      "has_results": true,
      "last_update_posted_date": "2025-08-22",
      "last_synced_at": "2026-09-12T05:51:23.925Z",
      "location_count": 1,
      "location_summary": "Roslindale, Massachusetts",
      "locations": [
        {
          "city": "Roslindale",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05817383"
    },
    {
      "nct_id": "NCT01809795",
      "title": "The Health Effects of a Blueberry Enriched Diet on Obese Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Blueberry Smoothie",
          "type": "OTHER"
        },
        {
          "name": "Sham Smoothie",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "12 Years to 17 Years"
      },
      "enrollment_count": 10,
      "start_date": "2013-03",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2014-12-18",
      "last_synced_at": "2026-09-12T05:51:23.925Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01809795"
    },
    {
      "nct_id": "NCT05024916",
      "title": "Blueberry Intervention Study for Brain Aging",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Brain Aging"
      ],
      "interventions": [
        {
          "name": "Intervention",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Control",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "65 Years to 89 Years"
      },
      "enrollment_count": 63,
      "start_date": "2022-06-01",
      "completion_date": "2024-10-03",
      "has_results": false,
      "last_update_posted_date": "2025-05-21",
      "last_synced_at": "2026-09-12T05:51:23.925Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05024916"
    },
    {
      "nct_id": "NCT06735651",
      "title": "Wild Blueberries for Gut, Brain, and Cardiometabolic Health in Prediabetes",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prediabetes (Insulin Resistance, Impaired Glucose Tolerance)",
        "Female",
        "Adult",
        "Endothelial Function (Reactive Hyperemia)",
        "Arterial Stiffness",
        "Cognition",
        "Oxidative Stress",
        "Gut Microbiota",
        "Overweight",
        "Inflammation",
        "Microvascular Function",
        "Body Composition"
      ],
      "interventions": [
        {
          "name": "Wild Blueberry",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Georgia State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "20 Years to 65 Years · Female only"
      },
      "enrollment_count": 30,
      "start_date": "2024-09-20",
      "completion_date": "2027-09-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-02",
      "last_synced_at": "2026-09-12T05:51:23.925Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06735651"
    },
    {
      "nct_id": "NCT05358210",
      "title": "Effects of Blueberries in Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Blood Pressure",
        "Orthostatic Hypotension",
        "Vascular Diseases"
      ],
      "interventions": [
        {
          "name": "Blueberry Consumption",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Dried Date Consumption",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Beth Israel Deaconess Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "70 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "70 Years to 100 Years"
      },
      "enrollment_count": 61,
      "start_date": "2022-04-20",
      "completion_date": "2024-05-22",
      "has_results": false,
      "last_update_posted_date": "2024-07-18",
      "last_synced_at": "2026-09-12T05:51:23.925Z",
      "location_count": 2,
      "location_summary": "Brookline, Massachusetts • Dedham, Massachusetts",
      "locations": [
        {
          "city": "Brookline",
          "state": "Massachusetts"
        },
        {
          "city": "Dedham",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05358210"
    },
    {
      "nct_id": "NCT01888848",
      "title": "Effects of Blueberry on Cognition and Mobility in Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Aging",
        "Age-Related Memory Disorders"
      ],
      "interventions": [
        {
          "name": "Freeze-dried Blueberry",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Blueberry Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "USDA Human Nutrition Research Center on Aging",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "60 Years to 75 Years"
      },
      "enrollment_count": 42,
      "start_date": "2013-01",
      "completion_date": "2014-02",
      "has_results": false,
      "last_update_posted_date": "2015-05-27",
      "last_synced_at": "2026-09-12T05:51:23.925Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01888848"
    },
    {
      "nct_id": "NCT02075307",
      "title": "Effect of Blueberry Consumption on Metabolic Syndrome & DNA Damage",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Metabolic Syndrome",
        "Insulin Resistance",
        "DNA Damage"
      ],
      "interventions": [
        {
          "name": "Blueberry Powder",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "UCSF Benioff Children's Hospital Oakland",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "30 Years to 60 Years"
      },
      "enrollment_count": 7,
      "start_date": "2014-01",
      "completion_date": "2017-04-04",
      "has_results": false,
      "last_update_posted_date": "2020-12-23",
      "last_synced_at": "2026-09-12T05:51:23.925Z",
      "location_count": 1,
      "location_summary": "Oakland, California",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02075307"
    },
    {
      "nct_id": "NCT01005420",
      "title": "The Effect of Blueberries on Enhancing Insulin Sensitivity in Humans: A Pilot Study",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Insulin Sensitivity"
      ],
      "interventions": [
        {
          "name": "Blueberry Powder",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Pennington Biomedical Research Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "20 Years to 99 Years"
      },
      "enrollment_count": 0,
      "start_date": "2007-02",
      "completion_date": "2009-08",
      "has_results": false,
      "last_update_posted_date": "2023-06-12",
      "last_synced_at": "2026-09-12T05:51:23.925Z",
      "location_count": 1,
      "location_summary": "Baton Rouge, Louisiana",
      "locations": [
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01005420"
    }
  ]
}