{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Protein+Powder&page=5",
    "query": {
      "intervention": "Protein Powder",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 355,
    "total_pages": 36,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Protein+Powder&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Protein+Powder&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-26T15:22:00.957Z",
  "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": "NCT04812964",
      "title": "Modulation of the Intestinal Microbiome by a High Protein Diet",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Protein powder supplement, standard dosage based on 0.5 gram protein per pound of subject's lean body mass",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Protein powder supplement, High Level Protein, based on 1 gram of protein per pound of lean body mass: 25% protein and 45% carbohydrate",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "20 Years to 60 Years"
      },
      "enrollment_count": 106,
      "start_date": "2018-04-03",
      "completion_date": "2024-03-31",
      "has_results": true,
      "last_update_posted_date": "2024-08-07",
      "last_synced_at": "2026-10-26T15:22:00.957Z",
      "location_count": 1,
      "location_summary": "West Los Angeles, California",
      "locations": [
        {
          "city": "West Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04812964"
    },
    {
      "nct_id": "NCT00127634",
      "title": "Study of Human Insulin Inhalation Powder in Patients With Type 1 Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Diabetes Mellitus, Type 1"
      ],
      "interventions": [
        {
          "name": "Human Insulin Inhalation Powder",
          "type": "DRUG"
        },
        {
          "name": "Injectable Insulin",
          "type": "DRUG"
        },
        {
          "name": "Insulin Glargine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 385,
      "start_date": "2005-07",
      "completion_date": "2008-05",
      "has_results": false,
      "last_update_posted_date": "2018-03-09",
      "last_synced_at": "2026-10-26T15:22:00.957Z",
      "location_count": 35,
      "location_summary": "Sacramento, California • Walnut Creek, California • Aurora, Colorado + 32 more",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Walnut Creek",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Newark",
          "state": "Delaware"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00127634"
    },
    {
      "nct_id": "NCT03992404",
      "title": "Study to Compare the Efficacy and Safety of NT 201 (Botulinum Toxin) With Placebo for the Treatment of Lower Limb Spasticity Caused by Stroke or Traumatic Brain Injury",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Lower Limb or Combined Lower Limb and Upper Limb Spasticity Due to Stroke or Traumatic Brain Injury"
      ],
      "interventions": [
        {
          "name": "NT 201",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merz Pharmaceuticals GmbH",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 603,
      "start_date": "2019-09-16",
      "completion_date": "2027-04",
      "has_results": false,
      "last_update_posted_date": "2026-10-20",
      "last_synced_at": "2026-10-26T15:22:00.957Z",
      "location_count": 15,
      "location_summary": "Birmingham, Alabama • Little Rock, Arkansas • Downey, California + 11 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Downey",
          "state": "California"
        },
        {
          "city": "Stamford",
          "state": "Connecticut"
        },
        {
          "city": "Brandenton",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03992404"
    },
    {
      "nct_id": "NCT00359801",
      "title": "Exubera Large Simple Trial To Evaluate Long-Term Pulmonary And Cardiovascular Safety",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "Randomization to Exubera (insulin human [rDNA origin] inhalation powder) or Usual Diabetes Care",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1976,
      "start_date": "2006-07",
      "completion_date": "2009-04",
      "has_results": true,
      "last_update_posted_date": "2010-02-02",
      "last_synced_at": "2026-10-26T15:22:00.957Z",
      "location_count": 132,
      "location_summary": "Bay Minette, Alabama • Fairhope, Alabama • Graysville, Alabama + 121 more",
      "locations": [
        {
          "city": "Bay Minette",
          "state": "Alabama"
        },
        {
          "city": "Fairhope",
          "state": "Alabama"
        },
        {
          "city": "Graysville",
          "state": "Alabama"
        },
        {
          "city": "Pell City",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00359801"
    },
    {
      "nct_id": "NCT01561508",
      "title": "Effect of GABA Supplementation in the Progression of Type 1 Diabetes in Children",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "gamma-amino-butyric acid",
          "type": "DRUG"
        },
        {
          "name": "Xylitol",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "8 Years to 18 Years"
      },
      "enrollment_count": 0,
      "start_date": "2012-06",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2012-12-24",
      "last_synced_at": "2026-10-26T15:22:00.957Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01561508"
    },
    {
      "nct_id": "NCT06628349",
      "title": "Prandial Metabolic Phenotyping in Sarcopenic Older Adults Comparing Plant Based and Whey Based Protein",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Protein Metabolism"
      ],
      "interventions": [
        {
          "name": "Whey Protein Isolate 90%",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Soy Protein Isolate (90% Protein)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Organic Pea Protein Isolate",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo (Water)",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Texas A&M University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "50 Years to 95 Years"
      },
      "enrollment_count": 100,
      "start_date": "2024-02-01",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2025-11-25",
      "last_synced_at": "2026-10-26T15:22:00.957Z",
      "location_count": 1,
      "location_summary": "College Station, Texas",
      "locations": [
        {
          "city": "College Station",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06628349"
    },
    {
      "nct_id": "NCT03835767",
      "title": "Food-Specific and Component IgE Threshold Levels That Predict Food Allergy in People With Elevated Total Serum IgE Levels and Atopic Dermatitis",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Milk and/or Peanut Allergy"
      ],
      "interventions": [
        {
          "name": "Peanut powder and Oat flour",
          "type": "OTHER"
        },
        {
          "name": "Peanut flour and Oat flour (placebo for peanut flour)",
          "type": "OTHER"
        },
        {
          "name": "Dry Milk Powder and Corn Starch (placebo for Milk powder)",
          "type": "OTHER"
        },
        {
          "name": "Baked milk and Rice milk (placebo for Baked milk)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "3 Years to 21 Years"
      },
      "enrollment_count": 200,
      "start_date": "2019-04-19",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-26",
      "last_synced_at": "2026-10-26T15:22:00.957Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03835767"
    },
    {
      "nct_id": "NCT03643068",
      "title": "Phase 1A Study of the Safety of KSP/QRH Dimer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Adults"
      ],
      "interventions": [
        {
          "name": "KSP-QRH-E3-IRDye800 (Peptide 919288G), 0.6 mg",
          "type": "DRUG"
        },
        {
          "name": "KSP-QRH-E3-IRDye800 (Peptide 919288G), 1.8 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "25 Years to 100 Years"
      },
      "enrollment_count": 26,
      "start_date": "2018-08-22",
      "completion_date": "2018-10-27",
      "has_results": false,
      "last_update_posted_date": "2018-11-06",
      "last_synced_at": "2026-10-26T15:22:00.957Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03643068"
    },
    {
      "nct_id": "NCT03079297",
      "title": "Rapid Antidepressant Effects of Leucine",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "L-Leucine",
          "type": "DRUG"
        },
        {
          "name": "Maltodextrin",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 16,
      "start_date": "2017-03-09",
      "completion_date": "2021-10-04",
      "has_results": true,
      "last_update_posted_date": "2023-01-26",
      "last_synced_at": "2026-10-26T15:22:00.957Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03079297"
    },
    {
      "nct_id": "NCT02490683",
      "title": "Effects of Soy Based Dietary Supplements on Cardiometabolic Risk Factors.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Cardiovascular Risk Factors"
      ],
      "interventions": [
        {
          "name": "Luna Rich X",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Reliv Now",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Loma Linda University",
      "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": "2015-10",
      "completion_date": "2016-05",
      "has_results": false,
      "last_update_posted_date": "2016-05-12",
      "last_synced_at": "2026-10-26T15:22:00.957Z",
      "location_count": 1,
      "location_summary": "Loma Linda, California",
      "locations": [
        {
          "city": "Loma Linda",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02490683"
    }
  ]
}