{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hidden+Hearing+Loss",
    "query": {
      "condition": "Hidden Hearing Loss"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 5,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T01:50:27.641Z",
  "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": "NCT04129775",
      "title": "OTO-413 in Subjects With Speech-in-Noise Hearing Impairment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Sensorineural Hearing Loss"
      ],
      "interventions": [
        {
          "name": "OTO-413",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Otonomy, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "21 Years to 64 Years"
      },
      "enrollment_count": 110,
      "start_date": "2019-10-01",
      "completion_date": "2022-09-05",
      "has_results": false,
      "last_update_posted_date": "2022-10-27",
      "last_synced_at": "2026-05-22T01:50:27.641Z",
      "location_count": 8,
      "location_summary": "Colorado Springs, Colorado • Hollywood, Florida • Miami, Florida + 5 more",
      "locations": [
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        },
        {
          "city": "Hollywood",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04129775"
    },
    {
      "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": "2026-05-22T01:50:27.641Z",
      "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": "NCT07304024",
      "title": "A Treatment for a Form of Age-Related Central Auditory Processing Disorder Consisting of Clemastine Fumarate Plus Engineered Sound",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Central Auditory Processing Disorder",
        "Hearing Impaired (Partially)",
        "Hearing",
        "Hearing Abnormality",
        "Hearing Disability",
        "Hearing Disorder",
        "Hearing Disorders",
        "Hearing Impairment, Sensorineural",
        "Hearing Handicap",
        "Hearing Impaired",
        "Hearing Impairment",
        "Hearing Loss",
        "Central Auditory Disease",
        "Noise Exposure",
        "Noise Induced Hearing Loss",
        "Noise-Induced Hearing Loss",
        "Sound Perception",
        "Myelin Degeneration",
        "Myelinopathy",
        "Myelin Integrity",
        "Remyelination",
        "Hidden Hearing Loss",
        "Cocktail Party Skill",
        "Cocktail Party Syndrome",
        "CAPD",
        "Age Problem"
      ],
      "interventions": [
        {
          "name": "Clemastine Fumarate Combined With Engineered Sound",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Clemastine Fumarate Combined With Pink Noise",
          "type": "DRUG"
        },
        {
          "name": "Placebo Drug With Engineered Sound",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Placebo - Placebo",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT",
        "DRUG"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "45 Years to 65 Years"
      },
      "enrollment_count": 344,
      "start_date": "2025-03-31",
      "completion_date": "2028-07",
      "has_results": false,
      "last_update_posted_date": "2026-04-30",
      "last_synced_at": "2026-05-22T01:50:27.641Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07304024"
    },
    {
      "nct_id": "NCT06729632",
      "title": "Non-Invasive System to Deliver Therapeutic Hypothermia for Protection Against Noise-Induced Hearing Loss",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Noise Exposure",
        "Noise-induced Hearing Loss",
        "Noise; Adverse Effect",
        "Mild Therapeutic Hypothermia",
        "Cooling",
        "Occupational Exposure",
        "Occupational Health",
        "Hidden Hearing Loss"
      ],
      "interventions": [
        {
          "name": "Cold pack-delivered mild therapeutic hypothermia",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Restorear Devices LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 116,
      "start_date": "2024-12-19",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-04-02",
      "last_synced_at": "2026-05-22T01:50:27.641Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06729632"
    },
    {
      "nct_id": "NCT04462198",
      "title": "Phase I/IIa Study Evaluating Safety and Efficacy of an Intratympanic Dose of PIPE-505 in Subjects With Hearing Loss",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Sensorineural Hearing Loss"
      ],
      "interventions": [
        {
          "name": "PIPE-505",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Contineum Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 28,
      "start_date": "2020-10-15",
      "completion_date": "2021-06-17",
      "has_results": true,
      "last_update_posted_date": "2025-04-01",
      "last_synced_at": "2026-05-22T01:50:27.641Z",
      "location_count": 8,
      "location_summary": "Torrance, California • Boca Raton, Florida • New Albany, Indiana + 5 more",
      "locations": [
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Boca Raton",
          "state": "Florida"
        },
        {
          "city": "New Albany",
          "state": "Indiana"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04462198"
    }
  ]
}