{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Walnut&page=3",
    "query": {
      "intervention": "Walnut",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 61,
    "total_pages": 7,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Walnut&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Walnut&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-03T15:49:45.737Z",
  "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": "NCT00901043",
      "title": "Effects of Walnut Consumption on Endothelial Function in Type 2 Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "DIABETES MELLITUS TYPE 2"
      ],
      "interventions": [
        {
          "name": "Walnut supplementation",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Ad lib diet",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Griffin Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "35 Years to 75 Years"
      },
      "enrollment_count": 24,
      "start_date": "2007-10",
      "completion_date": "2008-09",
      "has_results": false,
      "last_update_posted_date": "2020-03-26",
      "last_synced_at": "2026-11-03T15:49:45.737Z",
      "location_count": 1,
      "location_summary": "Derby, Connecticut",
      "locations": [
        {
          "city": "Derby",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00901043"
    },
    {
      "nct_id": "NCT00579904",
      "title": "The Effects of Walnuts, Walnut-Oil, Almonds and Fish Oils on Glucose Homeostasis in Polycystic Ovary Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Polycystic Ovary Syndrome",
        "Insulin Resistance"
      ],
      "interventions": [
        {
          "name": "walnuts",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "almonds",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 96,
      "start_date": "2006-04",
      "completion_date": "2008-07",
      "has_results": false,
      "last_update_posted_date": "2017-04-24",
      "last_synced_at": "2026-11-03T15:49:45.737Z",
      "location_count": 1,
      "location_summary": "Mather, California",
      "locations": [
        {
          "city": "Mather",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00579904"
    },
    {
      "nct_id": "NCT02675101",
      "title": "Nuts and Olestra for Persistent Organic Pollutant Reduction (NO-POPs) Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Persistent Organic Pollutants",
        "Endocrine Disrupting Chemicals",
        "Endocrine Disruptor Effects"
      ],
      "interventions": [
        {
          "name": "Whole Nuts",
          "type": "OTHER"
        },
        {
          "name": "Olestra: Fat Free Pringles",
          "type": "OTHER"
        },
        {
          "name": "Vegetable Oil: Original Pringles",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "45 Years to 70 Years"
      },
      "enrollment_count": 45,
      "start_date": "2016-03",
      "completion_date": "2019-04-01",
      "has_results": false,
      "last_update_posted_date": "2019-07-05",
      "last_synced_at": "2026-11-03T15:49:45.737Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02675101"
    },
    {
      "nct_id": "NCT03897556",
      "title": "Effect of High-Dose Guarana And Cancer-Related Fatigue",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer-related Fatigue"
      ],
      "interventions": [
        {
          "name": "Guarana herb",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Usual Care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2019-10-20",
      "completion_date": "2022-10-21",
      "has_results": false,
      "last_update_posted_date": "2022-11-09",
      "last_synced_at": "2026-11-03T15:49:45.737Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03897556"
    },
    {
      "nct_id": "NCT01459991",
      "title": "The Mediterranean Diet and Lactation Study: A Diet Study in Lactating Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Feeding"
      ],
      "interventions": [
        {
          "name": "Walnut",
          "type": "OTHER"
        },
        {
          "name": "MyPyramid",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 138,
      "start_date": "2008-10",
      "completion_date": "2011-10",
      "has_results": false,
      "last_update_posted_date": "2011-10-28",
      "last_synced_at": "2026-11-03T15:49:45.737Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01459991"
    },
    {
      "nct_id": "NCT03824652",
      "title": "WALNUTS for POWER: Polyphenols, Omega-3 Fatty Acids, Weight Loss, and EneRgy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "walnuts",
          "type": "OTHER"
        },
        {
          "name": "usual diet",
          "type": "OTHER"
        },
        {
          "name": "phone counseling with dietitian",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Stephen Freedland",
      "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": 52,
      "start_date": "2019-04-22",
      "completion_date": "2026-10-02",
      "has_results": false,
      "last_update_posted_date": "2026-10-06",
      "last_synced_at": "2026-11-03T15:49:45.737Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03824652"
    },
    {
      "nct_id": "NCT01546753",
      "title": "Walnut Oral Immunotherapy for Tree Nut Allergy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Tree Nut Allergy"
      ],
      "interventions": [
        {
          "name": "Walnut Protein Powder",
          "type": "DRUG"
        },
        {
          "name": "Oat Powder (placebo)",
          "type": "DRUG"
        },
        {
          "name": "Open-label Walnut Protein Powder",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Arkansas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "6 Years to 45 Years"
      },
      "enrollment_count": 22,
      "start_date": "2012-04-27",
      "completion_date": "2020-07-02",
      "has_results": true,
      "last_update_posted_date": "2023-05-12",
      "last_synced_at": "2026-11-03T15:49:45.737Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01546753"
    },
    {
      "nct_id": "NCT03900403",
      "title": "Influence of Walnut Intake on Vascular Function and Metabolism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Overweight and Obesity",
        "Endothelial Dysfunction",
        "Cardiovascular Risk Factor"
      ],
      "interventions": [
        {
          "name": "Walnut Intake",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "45 Years to 65 Years · Female only"
      },
      "enrollment_count": 20,
      "start_date": "2019-09-01",
      "completion_date": "2023-06-14",
      "has_results": false,
      "last_update_posted_date": "2023-08-31",
      "last_synced_at": "2026-11-03T15:49:45.737Z",
      "location_count": 1,
      "location_summary": "Davis, California",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03900403"
    },
    {
      "nct_id": "NCT00626691",
      "title": "The Effects of Walnuts on Antioxidant Capacity and Nutritional Status in Humans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Walnut consumption",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Tufts University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2007-02",
      "completion_date": "2007-12",
      "has_results": false,
      "last_update_posted_date": "2009-02-19",
      "last_synced_at": "2026-11-03T15:49:45.737Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00626691"
    },
    {
      "nct_id": "NCT03881696",
      "title": "Omalizumab as Monotherapy and as Adjunct Therapy to Multi-Allergen OIT in Food Allergic Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Peanut Allergy",
        "Multi-food Allergy"
      ],
      "interventions": [
        {
          "name": "Omalizumab",
          "type": "DRUG"
        },
        {
          "name": "Placebo for Omalizumab",
          "type": "DRUG"
        },
        {
          "name": "Multi-Allergen Oral Immunotherapy",
          "type": "DRUG"
        },
        {
          "name": "Placebo for Multi-Allergen Oral Immunotherapy",
          "type": "DRUG"
        },
        {
          "name": "Double-Blind Placebo-Controlled Food Challenge Based Treatment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "1 Year to 55 Years"
      },
      "enrollment_count": 458,
      "start_date": "2019-07-22",
      "completion_date": "2025-07-01",
      "has_results": true,
      "last_update_posted_date": "2026-09-22",
      "last_synced_at": "2026-11-03T15:49:45.737Z",
      "location_count": 10,
      "location_summary": "Little Rock, Arkansas • Stanford, California • Denver, Colorado + 7 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03881696"
    }
  ]
}