{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=hearing+aid+amplification&page=2",
    "query": {
      "intervention": "hearing aid amplification",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 25,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=hearing+aid+amplification&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=hearing+aid+amplification&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-07T19:01:46.766Z",
  "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": "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": "2026-11-07T19:01:46.766Z",
      "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": "NCT02042404",
      "title": "The EarLens System Long Term Safety and Efficacy Definitive Multi-Center Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Impairment"
      ],
      "interventions": [
        {
          "name": "Sound amplification provided via EarLens System.",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "EarLens Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 48,
      "start_date": "2014-03",
      "completion_date": "2015-03",
      "has_results": true,
      "last_update_posted_date": "2016-02-02",
      "last_synced_at": "2026-11-07T19:01:46.766Z",
      "location_count": 3,
      "location_summary": "Menlo Park, California • San Jose, California • Iowa City, Iowa",
      "locations": [
        {
          "city": "Menlo Park",
          "state": "California"
        },
        {
          "city": "San Jose",
          "state": "California"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02042404"
    },
    {
      "nct_id": "NCT03686046",
      "title": "Evaluation of an Open-source Speech-processing Platform",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hearing Loss, Sensorineural"
      ],
      "interventions": [
        {
          "name": "Exploratory use",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "San Diego State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "30 Years to 90 Years"
      },
      "enrollment_count": 22,
      "start_date": "2019-05-10",
      "completion_date": "2020-05-15",
      "has_results": true,
      "last_update_posted_date": "2026-07-02",
      "last_synced_at": "2026-11-07T19:01:46.766Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03686046"
    },
    {
      "nct_id": "NCT03904264",
      "title": "Feasibility and Acceptability of Using Low-Gain Hearing Aids for Bothersome Tinnitus",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tinnitus",
        "Hearing Aids",
        "Normal Hearing"
      ],
      "interventions": [
        {
          "name": "Receiver in the canal (RIC) hearing aids",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 65,
      "start_date": "2020-02-24",
      "completion_date": "2022-09-30",
      "has_results": true,
      "last_update_posted_date": "2023-11-21",
      "last_synced_at": "2026-11-07T19:01:46.766Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03904264"
    },
    {
      "nct_id": "NCT07044518",
      "title": "The Clinical Application of Apple AirPods Pro 2 vs. Hearing Aids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Loss"
      ],
      "interventions": [
        {
          "name": "Over-the-Counter Hearing Aid",
          "type": "DEVICE"
        },
        {
          "name": "Hearing aid, air conduction",
          "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": 21,
      "start_date": "2025-09-11",
      "completion_date": "2025-12-04",
      "has_results": false,
      "last_update_posted_date": "2025-12-17",
      "last_synced_at": "2026-11-07T19:01:46.766Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07044518"
    },
    {
      "nct_id": "NCT03850678",
      "title": "Restoration of Spectral Resolution With Hearing-aid Amplification",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Loss"
      ],
      "interventions": [
        {
          "name": "Hearing Aid",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Nebraska Lincoln",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 209,
      "start_date": "2019-04-02",
      "completion_date": "2023-11-30",
      "has_results": true,
      "last_update_posted_date": "2025-01-14",
      "last_synced_at": "2026-11-07T19:01:46.766Z",
      "location_count": 1,
      "location_summary": "Lincoln, Nebraska",
      "locations": [
        {
          "city": "Lincoln",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03850678"
    },
    {
      "nct_id": "NCT07922187",
      "title": "Speech Recognition With Hearing Enhancement",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing"
      ],
      "interventions": [
        {
          "name": "Hearing Enhancement",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Meta Platforms Technologies LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 43,
      "start_date": "2026-10-20",
      "completion_date": "2026-10-28",
      "has_results": false,
      "last_update_posted_date": "2026-11-06",
      "last_synced_at": "2026-11-07T19:01:46.766Z",
      "location_count": 1,
      "location_summary": "Menlo Park, California",
      "locations": [
        {
          "city": "Menlo Park",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07922187"
    },
    {
      "nct_id": "NCT05653999",
      "title": "Assessing Speech Perception and Amplification Benefit During Infancy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hearing Loss",
        "Children With Hearing Differences",
        "Amplification",
        "Speech Perception"
      ],
      "interventions": [
        {
          "name": "Hearing Aids",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "36 Months",
        "sex": "ALL",
        "summary": "6 Months to 36 Months"
      },
      "enrollment_count": 36,
      "start_date": "2023-03-10",
      "completion_date": "2025-05-28",
      "has_results": false,
      "last_update_posted_date": "2025-06-04",
      "last_synced_at": "2026-11-07T19:01:46.766Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05653999"
    },
    {
      "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": "2026-11-07T19:01:46.766Z",
      "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": "NCT05527730",
      "title": "Clinical Trial Evaluating Outcomes of Self-Fit and Professionally Fit Hearing Aids",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Loss"
      ],
      "interventions": [
        {
          "name": "Comparison of PRO-FIT or SELF-FIT fitting",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Whisper.ai",
      "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": 80,
      "start_date": "2022-07-07",
      "completion_date": "2022-12-20",
      "has_results": false,
      "last_update_posted_date": "2022-12-07",
      "last_synced_at": "2026-11-07T19:01:46.766Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05527730"
    }
  ]
}