{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pure+Tone+Audiometry",
    "query": {
      "intervention": "Pure Tone Audiometry"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 9,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-07T18:24:22.370Z",
  "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": "NCT04172766",
      "title": "Apple Hearing Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hearing Loss, Noise-Induced",
        "Hearing Loss",
        "Tinnitus"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Apple Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300000,
      "start_date": "2019-11-14",
      "completion_date": "2029-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-19",
      "last_synced_at": "2026-09-07T18:24:22.370Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04172766"
    },
    {
      "nct_id": "NCT01963104",
      "title": "Community-Based Kiosks for Hearing Screening and Education",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Loss"
      ],
      "interventions": [
        {
          "name": "Automated hearing test",
          "type": "PROCEDURE"
        },
        {
          "name": "Pure-tone Screener test",
          "type": "PROCEDURE"
        },
        {
          "name": "Digits-in-noise test",
          "type": "PROCEDURE"
        },
        {
          "name": "No screening test",
          "type": "PROCEDURE"
        },
        {
          "name": "Automated hearing test/Motivation video",
          "type": "PROCEDURE"
        },
        {
          "name": "Pure-tone Screener/Motivation video",
          "type": "PROCEDURE"
        },
        {
          "name": "Digits-in-noise test/Motivational video",
          "type": "PROCEDURE"
        },
        {
          "name": "No screening test/Motivational video",
          "type": "PROCEDURE"
        },
        {
          "name": "Home Hearing Screening Test",
          "type": "PROCEDURE"
        },
        {
          "name": "Home Hearing Screening Test/Brief video",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Portland VA Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2048,
      "start_date": "2013-09",
      "completion_date": "2019-07",
      "has_results": false,
      "last_update_posted_date": "2019-11-26",
      "last_synced_at": "2026-09-07T18:24:22.370Z",
      "location_count": 4,
      "location_summary": "Bay Pines, Florida • Minneapolis, Minnesota • Columbus, Ohio + 1 more",
      "locations": [
        {
          "city": "Bay Pines",
          "state": "Florida"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01963104"
    },
    {
      "nct_id": "NCT06058767",
      "title": "Preschool Hearing Screening",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Loss",
        "Hearing Disorders in Children",
        "Hearing Loss, Sensorineural",
        "Hearing Loss, Conductive",
        "Hearing Loss, Unilateral",
        "Hearing Loss, Noise-Induced",
        "Hearing Loss, Mixed",
        "Hearing Loss, Bilateral"
      ],
      "interventions": [
        {
          "name": "Otoacoustic Emissions Testing",
          "type": "OTHER"
        },
        {
          "name": "Pure Tone Audiometry",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "6 Years",
        "sex": "ALL",
        "summary": "2 Years to 6 Years"
      },
      "enrollment_count": 13764,
      "start_date": "2023-10-01",
      "completion_date": "2028-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-02",
      "last_synced_at": "2026-09-07T18:24:22.370Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06058767"
    },
    {
      "nct_id": "NCT06309264",
      "title": "Comparing Hearing Aid Fitting Methods in Blast-exposed Veterans",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Auditory Diseases, Central"
      ],
      "interventions": [
        {
          "name": "Phonak Lumina P90",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 80,
      "start_date": "2024-04-01",
      "completion_date": "2028-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-14",
      "last_synced_at": "2026-09-07T18:24:22.370Z",
      "location_count": 3,
      "location_summary": "Loma Linda, California • Sepulveda, California • West Los Angeles, California",
      "locations": [
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "Sepulveda",
          "state": "California"
        },
        {
          "city": "West Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06309264"
    },
    {
      "nct_id": "NCT07307833",
      "title": "Impact of Immunotherapy on Vestibular Function, The Mayo Clinic Arizona Experience",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hematopoietic and Lymphatic System Neoplasm",
        "Malignant Solid Neoplasm"
      ],
      "interventions": [
        {
          "name": "Non-Interventional Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 50,
      "start_date": "2025-10-31",
      "completion_date": "2029-10-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-16",
      "last_synced_at": "2026-09-07T18:24:22.370Z",
      "location_count": 1,
      "location_summary": "Scottsdale, Arizona",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07307833"
    },
    {
      "nct_id": "NCT07472023",
      "title": "Regenerative Medicine and Stem Cell-Based Interventions for Inner Ear Trauma, Tinnitus, and Sensorineural Hearing Loss",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Sensorineural Hearing Loss",
        "Tinnitus",
        "Acoustic Trauma",
        "Inner Ear Injury",
        "Noise-Induced Hearing Loss",
        "Sudden Hearing Loss",
        "Vestibular Dysfunction"
      ],
      "interventions": [
        {
          "name": "Audiologic Monitoring",
          "type": "OTHER"
        },
        {
          "name": "Investigational Regenerative Pharmacologic Therapy",
          "type": "DRUG"
        },
        {
          "name": "Stem Cell Regenerative Therapy",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Combination Regenerative Therapy",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG",
        "BIOLOGICAL",
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "Truway Health, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 120,
      "start_date": "2026-03-08",
      "completion_date": "2099-03-08",
      "has_results": false,
      "last_update_posted_date": "2026-03-16",
      "last_synced_at": "2026-09-07T18:24:22.370Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07472023"
    },
    {
      "nct_id": "NCT05981391",
      "title": "Neurobiological Similarities of Tinnitus and PTSD",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Posttraumatic Stress Disorder",
        "Tinnitus"
      ],
      "interventions": [
        {
          "name": "resting-state functional MRI",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Clinician Administered PTSD Scale for the DSM-5 (CAPS-5)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Tympanometry",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Tinnitus Assessment",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Otoscopy",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Pure tone air and bone-conduction",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Speech testing",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Loudness Discomfort",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Quick Speech in Noise Test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Distortion-Product Otoacoustic Emissions (DPOAE)",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "The University of Texas Health Science Center at San Antonio",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 64,
      "start_date": "2021-02-04",
      "completion_date": "2024-11-01",
      "has_results": true,
      "last_update_posted_date": "2025-07-08",
      "last_synced_at": "2026-09-07T18:24:22.370Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05981391"
    },
    {
      "nct_id": "NCT04049643",
      "title": "Hearing Aid and Individuals With Cognitive Disorders",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Presbycusis, Bilateral",
        "Alzheimer Disease 2 Due to Apoe4 Isoform",
        "Mild Cognitive Impairment"
      ],
      "interventions": [
        {
          "name": "Audiologist-based fitting",
          "type": "DEVICE"
        },
        {
          "name": "Service-only Fitting",
          "type": "DEVICE"
        },
        {
          "name": "Device-only fitting",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Yu-Hsiang Wu",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "55 Years to 85 Years"
      },
      "enrollment_count": 17,
      "start_date": "2019-12-01",
      "completion_date": "2024-11-07",
      "has_results": true,
      "last_update_posted_date": "2025-04-17",
      "last_synced_at": "2026-09-07T18:24:22.370Z",
      "location_count": 2,
      "location_summary": "Iowa City, Iowa • Nashville, Tennessee",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04049643"
    },
    {
      "nct_id": "NCT05789316",
      "title": "Head and Neck Cancer Survivorship Ototoxicity Screening (SOS)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Head and Neck Cancer Survivors",
        "Cancer of the Head and Neck Surviors"
      ],
      "interventions": [
        {
          "name": "Ototoxicity Screening Protocol",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 55,
      "start_date": "2023-06-06",
      "completion_date": "2025-11-21",
      "has_results": false,
      "last_update_posted_date": "2026-01-12",
      "last_synced_at": "2026-09-07T18:24:22.370Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05789316"
    }
  ]
}