{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Essential+Amino+Acid+Protein+Supplement&page=2",
    "query": {
      "intervention": "Essential Amino Acid Protein Supplement",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 43,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Essential+Amino+Acid+Protein+Supplement&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Essential+Amino+Acid+Protein+Supplement&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-04T00:12:10.958Z",
  "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": "NCT02145949",
      "title": "Mechanistic Approach to Preventing Atrophy and Restoring Function in Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Muscle Atrophy",
        "Quality of Life"
      ],
      "interventions": [
        {
          "name": "Essential Amino Acids (EAA)",
          "type": "DRUG"
        },
        {
          "name": "Placebo (Alanine)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Oregon",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "50 Years to 80 Years"
      },
      "enrollment_count": 80,
      "start_date": "2014-12",
      "completion_date": "2020-02",
      "has_results": true,
      "last_update_posted_date": "2024-07-23",
      "last_synced_at": "2026-10-04T00:12:10.958Z",
      "location_count": 2,
      "location_summary": "Eugene, Oregon",
      "locations": [
        {
          "city": "Eugene",
          "state": "Oregon"
        },
        {
          "city": "Eugene",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02145949"
    },
    {
      "nct_id": "NCT06050668",
      "title": "Essential Amino Acid Supplementation for Femoral Fragility Fractures",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Femoral Fracture",
        "Fragility Fracture",
        "Muscle Atrophy"
      ],
      "interventions": [
        {
          "name": "Essential Amino Acid Supplementation",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "Michael C Willey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2024-06-17",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-15",
      "last_synced_at": "2026-10-04T00:12:10.958Z",
      "location_count": 2,
      "location_summary": "Iowa City, Iowa • Eugene, Oregon",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Eugene",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06050668"
    },
    {
      "nct_id": "NCT03679780",
      "title": "The Effect of Endothelin and L-Arginine on Racial Differences in Vasoconstriction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cardiovascular Diseases",
        "Cardiovascular Risk Factor",
        "Vasoconstriction"
      ],
      "interventions": [
        {
          "name": "BQ-788",
          "type": "DRUG"
        },
        {
          "name": "BQ-123",
          "type": "DRUG"
        },
        {
          "name": "L-Arginine",
          "type": "DRUG"
        },
        {
          "name": "NG Nitro L Arginine Methyl Ester",
          "type": "DRUG"
        },
        {
          "name": "Sodium Nitroprusside",
          "type": "DRUG"
        },
        {
          "name": "Lactated Ringer's",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The University of Texas at Arlington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 19,
      "start_date": "2018-10-01",
      "completion_date": "2023-07-26",
      "has_results": false,
      "last_update_posted_date": "2024-06-11",
      "last_synced_at": "2026-10-04T00:12:10.958Z",
      "location_count": 1,
      "location_summary": "Arlington, Texas",
      "locations": [
        {
          "city": "Arlington",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03679780"
    },
    {
      "nct_id": "NCT06121869",
      "title": "Dileucine and Resistance Training Adaptations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertrophy",
        "Strength Training Adaptations",
        "Weight-Bearing Strengthening Program"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Leucine",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Dileucine",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Lindenwood University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "MALE",
        "summary": "18 Years to 39 Years · Male only"
      },
      "enrollment_count": 34,
      "start_date": "2021-05-07",
      "completion_date": "2023-06-29",
      "has_results": false,
      "last_update_posted_date": "2023-11-08",
      "last_synced_at": "2026-10-04T00:12:10.958Z",
      "location_count": 1,
      "location_summary": "Saint Charles, Missouri",
      "locations": [
        {
          "city": "Saint Charles",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06121869"
    },
    {
      "nct_id": "NCT01388764",
      "title": "Safety, Tolerability and Effects of L-Arginine in Boys With Dystrophinopathy on Corticosteroids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Dystrophinopathy",
        "Duchenne Muscular Dystrophy",
        "Becker's Muscular Dystrophy"
      ],
      "interventions": [
        {
          "name": "L-arginine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "11 Years",
        "sex": "MALE",
        "summary": "7 Years to 11 Years · Male only"
      },
      "enrollment_count": 7,
      "start_date": "2012-01",
      "completion_date": "2012-05",
      "has_results": false,
      "last_update_posted_date": "2012-07-03",
      "last_synced_at": "2026-10-04T00:12:10.958Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01388764"
    },
    {
      "nct_id": "NCT07329088",
      "title": "Isoleucine Addition Treatment Effects in a Controlled Diet Study",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prediabetes (Insulin Resistance, Impaired Glucose Tolerance)",
        "Metabolic Syndrome (MetS)",
        "Obesity & Overweight"
      ],
      "interventions": [
        {
          "name": "L-Isoleucine",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Low-isoleucine diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Jean L. Fry",
      "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": 0,
      "start_date": "2026-05-04",
      "completion_date": "2029-01-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-15",
      "last_synced_at": "2026-10-04T00:12:10.958Z",
      "location_count": 1,
      "location_summary": "Lexington, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07329088"
    },
    {
      "nct_id": "NCT00447044",
      "title": "Combined Effects of Nutritional and Exercise Countermeasures",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Muscular Atrophy",
        "Muscle Weakness"
      ],
      "interventions": [
        {
          "name": "Resistance Exercise",
          "type": "BEHAVIORAL"
        },
        {
          "name": "diet orange soda",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "essential amino acids",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Arkansas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 31,
      "start_date": "2007-01",
      "completion_date": "2009-06",
      "has_results": false,
      "last_update_posted_date": "2009-06-19",
      "last_synced_at": "2026-10-04T00:12:10.958Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00447044"
    },
    {
      "nct_id": "NCT04080102",
      "title": "Essential Amino Acids and High Intensity Interval Training",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Risk Factor",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "High Intensity Interval Training",
          "type": "OTHER"
        },
        {
          "name": "Essential Amino Acid",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "High intensity interval training and essential amino acid supplement",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "30 Years to 50 Years"
      },
      "enrollment_count": 84,
      "start_date": "2019-03-01",
      "completion_date": "2020-01-05",
      "has_results": false,
      "last_update_posted_date": "2020-04-30",
      "last_synced_at": "2026-10-04T00:12:10.958Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04080102"
    },
    {
      "nct_id": "NCT01482247",
      "title": "L-Arginine, Vascular Response and Mechanisms",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hypertension",
        "Diabetes"
      ],
      "interventions": [
        {
          "name": "L-Arginine",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo Supplement",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "70 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "70 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2012-04",
      "completion_date": "2014-01",
      "has_results": false,
      "last_update_posted_date": "2016-07-28",
      "last_synced_at": "2026-10-04T00:12:10.958Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01482247"
    },
    {
      "nct_id": "NCT00587418",
      "title": "L-arginine for Prevention of Kidney Damage in Liver Transplant Recipients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Liver Transplant Recipients"
      ],
      "interventions": [
        {
          "name": "L-arginine",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2008-11",
      "completion_date": "2012-07",
      "has_results": false,
      "last_update_posted_date": "2012-09-03",
      "last_synced_at": "2026-10-04T00:12:10.958Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00587418"
    }
  ]
}