{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Optional+Muscle+Biopsy",
    "query": {
      "intervention": "Optional Muscle Biopsy"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-10T19:54:41.247Z",
  "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": "NCT02497534",
      "title": "Biomarkers in Friedreich's Ataxia",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Friedreich's Ataxia"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "6 Years to 70 Years"
      },
      "enrollment_count": 203,
      "start_date": "2015-09",
      "completion_date": "2030-06-03",
      "has_results": false,
      "last_update_posted_date": "2025-09-23",
      "last_synced_at": "2026-09-10T19:54:41.247Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02497534"
    },
    {
      "nct_id": "NCT02831296",
      "title": "Prospective Evaluation of Infants With Spinal Muscular Atrophy:",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Spinal Muscular Atrophy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 1000,
      "start_date": "2016-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2020-09-02",
      "last_synced_at": "2026-09-10T19:54:41.247Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02831296"
    },
    {
      "nct_id": "NCT05564637",
      "title": "A Study of Treprostinil to Treat Interstitial Lung Disease Pulmonary Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension",
        "Interstitial Lung Disease",
        "Healthy Adults"
      ],
      "interventions": [
        {
          "name": "Treprostinil",
          "type": "DRUG"
        },
        {
          "name": "Right Heart Catheterization (RHC) while exercising",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Optional Muscle Biopsy",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 29,
      "start_date": "2023-03-13",
      "completion_date": "2024-10-30",
      "has_results": true,
      "last_update_posted_date": "2025-12-03",
      "last_synced_at": "2026-09-10T19:54:41.247Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05564637"
    },
    {
      "nct_id": "NCT07097142",
      "title": "Testing Shorter Duration Radiation Therapy Versus the Usual Radiation Therapy in Patients Receiving the Usual Chemotherapy Treatment for Bladder Cancer, ARCHER Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Muscle Invasive Bladder Urothelial Carcinoma",
        "Stage II Bladder Cancer AJCC v8",
        "Stage IIIA Bladder Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Fluorouracil",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine",
          "type": "DRUG"
        },
        {
          "name": "Hypofractionated Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Mitomycin",
          "type": "DRUG"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        },
        {
          "name": "Ultrahypofractionated Radiation Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "NRG Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 486,
      "start_date": "2025-10-07",
      "completion_date": "2035-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-18",
      "last_synced_at": "2026-09-10T19:54:41.247Z",
      "location_count": 211,
      "location_summary": "Fort Smith, Arkansas • Irvine, California • La Jolla, California + 162 more",
      "locations": [
        {
          "city": "Fort Smith",
          "state": "Arkansas"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07097142"
    },
    {
      "nct_id": "NCT03258593",
      "title": "Durvalumab and Vicineum in Subjects With High-Grade Non-Muscle-Invasive Bladder Cancer Previously Treated With Bacillus Calmette-Guerin (BCG)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Urinary Bladder Neoplasms"
      ],
      "interventions": [
        {
          "name": "Durvalumab",
          "type": "DRUG"
        },
        {
          "name": "Vicineum",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Antihistamine",
          "type": "DRUG"
        },
        {
          "name": "Bladder Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "TURBT",
          "type": "PROCEDURE"
        },
        {
          "name": "Cystoscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Urine cytology",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Electrocardiogram",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "CT",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "MRI",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2018-06-07",
      "completion_date": "2022-10-17",
      "has_results": true,
      "last_update_posted_date": "2026-08-25",
      "last_synced_at": "2026-09-10T19:54:41.247Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03258593"
    },
    {
      "nct_id": "NCT02604563",
      "title": "Aging, Geriatric Syndromes and Clonal Hematopoiesis",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Geriatrics",
        "Aged",
        "Geriatric Syndromes",
        "Cardiovascular Diseases"
      ],
      "interventions": [
        {
          "name": "Cognitive Assessment",
          "type": "OTHER"
        },
        {
          "name": "Activities of Daily Living Questionnaire",
          "type": "OTHER"
        },
        {
          "name": "Instrumental Activities of Daily Living, subscale of the OARS",
          "type": "OTHER"
        },
        {
          "name": "Karnofsky Self-reported Performance Rating Scale",
          "type": "OTHER"
        },
        {
          "name": "Number of Falls",
          "type": "OTHER"
        },
        {
          "name": "Physical Health Section, subscale of the OARS",
          "type": "OTHER"
        },
        {
          "name": "MOS Social Activity Survey",
          "type": "OTHER"
        },
        {
          "name": "Unintentional Weight Loss",
          "type": "OTHER"
        },
        {
          "name": "Peripheral Blood Draw",
          "type": "GENETIC"
        },
        {
          "name": "Buccal Swab",
          "type": "GENETIC"
        },
        {
          "name": "Heart Health and Smoking History from BRFSS questionnaire",
          "type": "OTHER"
        },
        {
          "name": "Gait Speed",
          "type": "OTHER"
        },
        {
          "name": "Grip Strength",
          "type": "OTHER"
        },
        {
          "name": "Height and Weight measurements",
          "type": "OTHER"
        },
        {
          "name": "Blood pressure measurement",
          "type": "OTHER"
        },
        {
          "name": "Optional bone marrow biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood draw for trauma measurements",
          "type": "PROCEDURE"
        },
        {
          "name": "Femur head donation",
          "type": "OTHER"
        },
        {
          "name": "Knee bone fragments",
          "type": "OTHER"
        },
        {
          "name": "Bone marrow aspirate",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "GENETIC",
        "PROCEDURE"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 2000,
      "start_date": "2016-03-10",
      "completion_date": "2030-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-13",
      "last_synced_at": "2026-09-10T19:54:41.247Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02604563"
    }
  ]
}