{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Test+of+hearing+function&page=2",
    "query": {
      "intervention": "Test of hearing function",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Test+of+hearing+function&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-08T19:17:30.441Z",
  "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": "NCT01781039",
      "title": "Investigation of Anatomical Correlates of Speech Discrimination",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sensorineural Hearing Loss"
      ],
      "interventions": [
        {
          "name": "Hearing Aid fitting",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Steward St. Elizabeth's Medical Center of Boston, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 186,
      "start_date": "2013-01-01",
      "completion_date": "2019-12-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-12",
      "last_synced_at": "2026-09-08T19:17:30.441Z",
      "location_count": 1,
      "location_summary": "Brighton, Massachusetts",
      "locations": [
        {
          "city": "Brighton",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01781039"
    },
    {
      "nct_id": "NCT00554801",
      "title": "Central Auditory Processing Disorders Associated With Blast Exposure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Central Auditory Processing Disorder",
        "Traumatic Brain Injury",
        "Hearing Loss"
      ],
      "interventions": [
        {
          "name": "Audiological testing",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 84,
      "start_date": "2007-10",
      "completion_date": "2011-12",
      "has_results": true,
      "last_update_posted_date": "2018-08-10",
      "last_synced_at": "2026-09-08T19:17:30.441Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00554801"
    },
    {
      "nct_id": "NCT07228845",
      "title": "Effectiveness Comparison of 3D-Printed and Conventional Ear Tip Comfort in Individuals With Hearing Loss",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Aids",
        "Hearing Loss, Bilateral Sensorineural",
        "3D Printing"
      ],
      "interventions": [
        {
          "name": "BTE hearing aids with compatible ear tips (Third-party, FlexResin, Resin)",
          "type": "DEVICE"
        },
        {
          "name": "BTE hearing aids with compatible ear tips (FlexResin, Resin, Third-party, FlexResin)",
          "type": "DEVICE"
        },
        {
          "name": "BTE hearing aids with compatible ear tips (Resin, Third-party, FlexRes)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 32,
      "start_date": "2026-03-15",
      "completion_date": "2027-04-25",
      "has_results": false,
      "last_update_posted_date": "2026-05-01",
      "last_synced_at": "2026-09-08T19:17:30.441Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07228845"
    },
    {
      "nct_id": "NCT01454895",
      "title": "Test of a Web-based Intervention to Promote Hearing Protector Use",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Noise-induced Hearing Loss"
      ],
      "interventions": [
        {
          "name": "Sampler of hearing protection devices",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Static Web-based information",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Interactive Web-based information",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Marjorie McCullagh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 498,
      "start_date": "2011-11",
      "completion_date": "2014-10",
      "has_results": false,
      "last_update_posted_date": "2015-10-05",
      "last_synced_at": "2026-09-08T19:17:30.441Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01454895"
    },
    {
      "nct_id": "NCT05554692",
      "title": "Peripheral and Central Influences on Auditory Temporal Processing & Speech Perception in Older Cochlear Implantees",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Loss",
        "Cochlear Hearing Loss",
        "Hearing Loss, Sensorineural",
        "Aging"
      ],
      "interventions": [
        {
          "name": "Diagnostic tests of cochlear implant function",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Diagnostic tests of auditory function",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Maryland, College Park",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 300,
      "start_date": "2022-08-03",
      "completion_date": "2027-03",
      "has_results": false,
      "last_update_posted_date": "2025-03-25",
      "last_synced_at": "2026-09-08T19:17:30.441Z",
      "location_count": 1,
      "location_summary": "College Park, Maryland",
      "locations": [
        {
          "city": "College Park",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05554692"
    },
    {
      "nct_id": "NCT03002363",
      "title": "The Effects of Video Modeling of Audiological Testing on Pediatric Patient Compliance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Autism"
      ],
      "interventions": [
        {
          "name": "Video Modeling Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Placebo Video",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Months",
        "maximum_age": "36 Months",
        "sex": "ALL",
        "summary": "18 Months to 36 Months"
      },
      "enrollment_count": 20,
      "start_date": "2016-09",
      "completion_date": "2017-09-01",
      "has_results": false,
      "last_update_posted_date": "2018-08-21",
      "last_synced_at": "2026-09-08T19:17:30.441Z",
      "location_count": 1,
      "location_summary": "Evanston, Illinois",
      "locations": [
        {
          "city": "Evanston",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03002363"
    },
    {
      "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": "2026-09-08T19:17:30.441Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04172766"
    },
    {
      "nct_id": "NCT02702869",
      "title": "Allied Cleft & Craniofacial Quality-Improvement and Research Network (ACCQUIREnet)",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cleft Lip",
        "Cleft Palate",
        "Cleft Lip and Palate"
      ],
      "interventions": [
        {
          "name": "cleft lip repair",
          "type": "PROCEDURE"
        },
        {
          "name": "cleft palate repair",
          "type": "PROCEDURE"
        },
        {
          "name": "oronasal fistula repair",
          "type": "PROCEDURE"
        },
        {
          "name": "pharyngoplasty",
          "type": "PROCEDURE"
        },
        {
          "name": "gingivoperiosteoplasty",
          "type": "PROCEDURE"
        },
        {
          "name": "LeFort-1 maxillary repositioning",
          "type": "PROCEDURE"
        },
        {
          "name": "rhinoplasty",
          "type": "PROCEDURE"
        },
        {
          "name": "myringotomy and tympanostomy tube placement",
          "type": "PROCEDURE"
        },
        {
          "name": "speech therapy",
          "type": "OTHER"
        },
        {
          "name": "orthodontia",
          "type": "PROCEDURE"
        },
        {
          "name": "presurgical orthopedics",
          "type": "PROCEDURE"
        },
        {
          "name": "sound amplification for hearing",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER",
        "DEVICE"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Day",
        "maximum_age": "22 Years",
        "sex": "ALL",
        "summary": "1 Day to 22 Years"
      },
      "enrollment_count": 1000,
      "start_date": "2016-10",
      "completion_date": "2031-12",
      "has_results": false,
      "last_update_posted_date": "2026-01-07",
      "last_synced_at": "2026-09-08T19:17:30.441Z",
      "location_count": 10,
      "location_summary": "Gainesville, Florida • Hollywood, Florida • Orlando, Florida + 7 more",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Hollywood",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "St. Petersburg",
          "state": "Florida"
        },
        {
          "city": "Portland",
          "state": "Maine"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02702869"
    },
    {
      "nct_id": "NCT04322747",
      "title": "Hearing Changes After Surgery",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hearing Loss"
      ],
      "interventions": [
        {
          "name": "Distortion product otoacoustic emissions (DPOAE)",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Gateway Biotechnology, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2021-09-01",
      "completion_date": "2022-02-28",
      "has_results": false,
      "last_update_posted_date": "2022-08-09",
      "last_synced_at": "2026-09-08T19:17:30.441Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04322747"
    },
    {
      "nct_id": "NCT04706364",
      "title": "Investigation of Brain Plasticity in Autism Spectrum Disorders",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Autism Spectrum Disorder"
      ],
      "interventions": [
        {
          "name": "Neuropsychological Testing",
          "type": "BEHAVIORAL"
        },
        {
          "name": "(Optional) Saliva Collection",
          "type": "GENETIC"
        },
        {
          "name": "Sensory Testing",
          "type": "DEVICE"
        },
        {
          "name": "Electroencephalogram (EEG)",
          "type": "DEVICE"
        },
        {
          "name": "Transcranial Magnetic Stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "GENETIC",
        "DEVICE"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "6 Years to 18 Years"
      },
      "enrollment_count": 60,
      "start_date": "2019-06-10",
      "completion_date": "2022-05",
      "has_results": false,
      "last_update_posted_date": "2021-11-05",
      "last_synced_at": "2026-09-08T19:17:30.441Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04706364"
    }
  ]
}