{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=High+protein+diet",
    "query": {
      "intervention": "High protein diet"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 344,
    "total_pages": 35,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=High+protein+diet&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-01T22:05:34.731Z",
  "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": "NCT02092545",
      "title": "Heart Obesity Prevention Education",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Ketogenic diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Tampa General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "64 Years",
        "sex": "MALE",
        "summary": "25 Years to 64 Years · Male only"
      },
      "enrollment_count": 7,
      "start_date": "2014-05",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2014-12-19",
      "last_synced_at": "2026-09-01T22:05:34.731Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02092545"
    },
    {
      "nct_id": "NCT01515839",
      "title": "Single Photon Emission Computed Tomography (SPECT) Imaging Study of Professional American Football Players",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Traumatic Brain Injury"
      ],
      "interventions": [
        {
          "name": "Multivitamin Supplement intervention",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Amen Clinics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 100,
      "start_date": "2009-05",
      "completion_date": "2010-06",
      "has_results": false,
      "last_update_posted_date": "2012-01-24",
      "last_synced_at": "2026-09-01T22:05:34.731Z",
      "location_count": 1,
      "location_summary": "Newport Beach, California",
      "locations": [
        {
          "city": "Newport Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01515839"
    },
    {
      "nct_id": "NCT05236413",
      "title": "The Effect of a High Fiber Diet and High-Intensity Interval Exercise in Patients With HFpEF",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure With Preserved Ejection Fraction"
      ],
      "interventions": [
        {
          "name": "High Intensity Interval Exercise",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Dietary Approaches to Stop Hypertension (DASH) Diet",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Exercise + DASH Diet",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 36,
      "start_date": "2022-04-01",
      "completion_date": "2025-08-01",
      "has_results": false,
      "last_update_posted_date": "2024-05-07",
      "last_synced_at": "2026-09-01T22:05:34.731Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05236413"
    },
    {
      "nct_id": "NCT00229255",
      "title": "Relation of Obesity With Frequency of Meals (MST 0557)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Insulin Resistance",
        "Fatty Liver"
      ],
      "interventions": [
        {
          "name": "high frequency of meals",
          "type": "OTHER"
        },
        {
          "name": "twice a day meals",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Rockefeller University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 22,
      "start_date": "2005-03",
      "completion_date": "2009-06",
      "has_results": false,
      "last_update_posted_date": "2012-06-01",
      "last_synced_at": "2026-09-01T22:05:34.731Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00229255"
    },
    {
      "nct_id": "NCT02787668",
      "title": "A Carbohydrate-restricted Diet to Reverse Fatty Liver in Adolescents With Obesity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Non-alcoholic Fatty Liver Disease",
        "Childhood Obesity",
        "Insulin Resistance"
      ],
      "interventions": [
        {
          "name": "Carbohydrate-restricted diet",
          "type": "OTHER"
        },
        {
          "name": "Control, low-fat diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "9 Years to 17 Years"
      },
      "enrollment_count": 27,
      "start_date": "2016-05",
      "completion_date": "2018-04",
      "has_results": false,
      "last_update_posted_date": "2022-02-21",
      "last_synced_at": "2026-09-01T22:05:34.731Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02787668"
    },
    {
      "nct_id": "NCT05470218",
      "title": "Leucine, mTOR and Athero",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atherosclerosis"
      ],
      "interventions": [
        {
          "name": "Meal",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Missouri-Columbia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "18 Years to 95 Years"
      },
      "enrollment_count": 10,
      "start_date": "2022-07-12",
      "completion_date": "2026-08-14",
      "has_results": false,
      "last_update_posted_date": "2026-05-11",
      "last_synced_at": "2026-09-01T22:05:34.731Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05470218"
    },
    {
      "nct_id": "NCT02818283",
      "title": "Soy Modulation of Immune Activation, LDL- Levels, and Lowering Inflammation by Pretzel Isoflavone Dietary Intervention",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Human Immunodeficiency Virus (HIV) Infection",
        "Hypercholesterolemia"
      ],
      "interventions": [
        {
          "name": "Soy Pretzel",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Wheat Pretzel",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1,
      "start_date": "2016-06",
      "completion_date": "2023-10",
      "has_results": false,
      "last_update_posted_date": "2023-10-06",
      "last_synced_at": "2026-09-01T22:05:34.731Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02818283"
    },
    {
      "nct_id": "NCT04745572",
      "title": "Development of an Adaptive Treatment for Weight Loss in People With Prediabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "PreDiabetes",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "High Carbohydrate Diet",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Reduced Carbohydrate Diet",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "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": 90,
      "start_date": "2021-05-14",
      "completion_date": "2023-11-21",
      "has_results": false,
      "last_update_posted_date": "2025-04-27",
      "last_synced_at": "2026-09-01T22:05:34.731Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04745572"
    },
    {
      "nct_id": "NCT02781350",
      "title": "Anti-inflammatory Effects of Fiber",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postprandial Inflammation"
      ],
      "interventions": [
        {
          "name": "HFHC meal",
          "type": "OTHER"
        },
        {
          "name": "HFHC MEAL plus Fiber",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University at Buffalo",
      "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": 20,
      "start_date": "2010-11",
      "completion_date": "2013-05",
      "has_results": false,
      "last_update_posted_date": "2016-05-25",
      "last_synced_at": "2026-09-01T22:05:34.731Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02781350"
    },
    {
      "nct_id": "NCT05113485",
      "title": "UCLA Breast Cancer Survivor Health Promotion Research Study",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Diabetes Prevention Program-based lifestyle change intervention (DPP)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Highly Microbiota-Accessible Foods (HMAFs) intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "50 Years to 75 Years · Female only"
      },
      "enrollment_count": 30,
      "start_date": "2022-04-01",
      "completion_date": "2023-06",
      "has_results": false,
      "last_update_posted_date": "2022-04-11",
      "last_synced_at": "2026-09-01T22:05:34.731Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05113485"
    }
  ]
}