{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Amino+acid+supplement",
    "query": {
      "intervention": "Amino acid supplement"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 290,
    "total_pages": 29,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Amino+acid+supplement&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-22T08:38:05.925Z",
  "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": "NCT03209895",
      "title": "Study to Evaluate the Safety and Efficacy of a Proprietary \"Joint Health\" Dietary Supplement in Subjects With Joint and Connective Tissue Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Joint Pain"
      ],
      "interventions": [
        {
          "name": "Joint Health Product",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Glucosamine / Chondroitin",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "U.S. Nutraceuticals, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 135,
      "start_date": "2010-10-08",
      "completion_date": "2011-06-13",
      "has_results": false,
      "last_update_posted_date": "2017-07-06",
      "last_synced_at": "2026-09-22T08:38:05.925Z",
      "location_count": 1,
      "location_summary": "Sausalito, California",
      "locations": [
        {
          "city": "Sausalito",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03209895"
    },
    {
      "nct_id": "NCT00872911",
      "title": "Nutrition and Exercise for Sarcopenia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Sarcopenia"
      ],
      "interventions": [
        {
          "name": "Amino acids",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Exercise",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG"
      ],
      "sponsor": "The University of Texas Medical Branch, Galveston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "65 Years to 85 Years"
      },
      "enrollment_count": 108,
      "start_date": "2009-03",
      "completion_date": "2016-08",
      "has_results": false,
      "last_update_posted_date": "2016-12-12",
      "last_synced_at": "2026-09-22T08:38:05.925Z",
      "location_count": 1,
      "location_summary": "Galveston, Texas",
      "locations": [
        {
          "city": "Galveston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00872911"
    },
    {
      "nct_id": "NCT01399333",
      "title": "Comparison of Meal Replacements Versus Protein Supplements and Utilizing the Protein Digestibility Corrected Amino Acid Score (PDCAAS) Method",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Protein Deficiency"
      ],
      "interventions": [
        {
          "name": "Group 1 Meal Replacement",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Group 2 Protein Supplement",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Group 3",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Southeast Bariatrics, PA",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 60,
      "start_date": "2010-01",
      "completion_date": "2012-01",
      "has_results": false,
      "last_update_posted_date": "2011-07-26",
      "last_synced_at": "2026-09-22T08:38:05.925Z",
      "location_count": 1,
      "location_summary": "Charlotte, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01399333"
    },
    {
      "nct_id": "NCT01540773",
      "title": "Single Low-Dose of Supplement Amino Acid",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Growth Hormone",
        "Amino Acid"
      ],
      "interventions": [
        {
          "name": "Amino acid supplement",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pennington Biomedical Research Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 16,
      "start_date": "2011-10",
      "completion_date": "2012-03",
      "has_results": true,
      "last_update_posted_date": "2018-10-22",
      "last_synced_at": "2026-09-22T08:38:05.925Z",
      "location_count": 1,
      "location_summary": "Baton Rouge, Louisiana",
      "locations": [
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01540773"
    },
    {
      "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": "2026-09-22T08:38:05.925Z",
      "location_count": 1,
      "location_summary": "Arlington, Texas",
      "locations": [
        {
          "city": "Arlington",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03679780"
    },
    {
      "nct_id": "NCT02990533",
      "title": "Muscle Anabolic Interventions to Accelerate Recovery From Hospitalization in Geriatric Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Aging"
      ],
      "interventions": [
        {
          "name": "Testosterone",
          "type": "DRUG"
        },
        {
          "name": "Protein Supplement",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo Injection",
          "type": "OTHER"
        },
        {
          "name": "Placebo supplement",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "The University of Texas Medical Branch, Galveston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2016-09",
      "completion_date": "2020-11-08",
      "has_results": false,
      "last_update_posted_date": "2024-12-17",
      "last_synced_at": "2026-09-22T08:38:05.925Z",
      "location_count": 1,
      "location_summary": "Galveston, Texas",
      "locations": [
        {
          "city": "Galveston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02990533"
    },
    {
      "nct_id": "NCT02455076",
      "title": "Exenatide Inpatient Trial: A Randomized Controlled Pilot Trial on the Safety and Efficacy of Exenatide (Byetta®) Therapy for the Inpatient Management of Patients With Type 2 Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Type 2 Diabetes"
      ],
      "interventions": [
        {
          "name": "Exenatide",
          "type": "DRUG"
        },
        {
          "name": "Glargine",
          "type": "DRUG"
        },
        {
          "name": "Rapid-acting insulin analogs",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 150,
      "start_date": "2015-09",
      "completion_date": "2018-03",
      "has_results": true,
      "last_update_posted_date": "2019-06-20",
      "last_synced_at": "2026-09-22T08:38:05.925Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02455076"
    },
    {
      "nct_id": "NCT01885338",
      "title": "N-acetylcysteine (NAC) for Improving Cognitive Dysfunction in Schizophrenia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "N-acetylcysteine (NAC)",
          "type": "DRUG"
        },
        {
          "name": "Inactive placebo capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "VA Greater Los Angeles Healthcare System",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 26,
      "start_date": "2013-06",
      "completion_date": "2014-05",
      "has_results": false,
      "last_update_posted_date": "2015-06-04",
      "last_synced_at": "2026-09-22T08:38:05.925Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01885338"
    },
    {
      "nct_id": "NCT05371145",
      "title": "Carnosine for Peripheral Arterial Disease Patients",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Peripheral Arterial Disease"
      ],
      "interventions": [
        {
          "name": "Carnosine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Shahid Baba",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "80 Years",
        "sex": "MALE",
        "summary": "50 Years to 80 Years · Male only"
      },
      "enrollment_count": 20,
      "start_date": "2023-03-01",
      "completion_date": "2024-12-30",
      "has_results": false,
      "last_update_posted_date": "2024-07-22",
      "last_synced_at": "2026-09-22T08:38:05.925Z",
      "location_count": 1,
      "location_summary": "Louisville, Kentucky",
      "locations": [
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05371145"
    },
    {
      "nct_id": "NCT01860404",
      "title": "BCAA Supplementation for Concussion",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Brain Concussion"
      ],
      "interventions": [
        {
          "name": "Branched Chain Amino Acids",
          "type": "DRUG"
        },
        {
          "name": "Placebo solution",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "34 Years",
        "sex": "ALL",
        "summary": "11 Years to 34 Years"
      },
      "enrollment_count": 42,
      "start_date": "2014-01",
      "completion_date": "2023-01",
      "has_results": true,
      "last_update_posted_date": "2024-05-14",
      "last_synced_at": "2026-09-22T08:38:05.925Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01860404"
    }
  ]
}