{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Over-the-counter+fitting",
    "query": {
      "intervention": "Over-the-counter fitting"
    },
    "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": "2026-09-07T08:49:17.417Z",
  "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": "NCT07288463",
      "title": "Hearing Loss and Brain Health Study",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Loss, Adult-Onset",
        "Dementia"
      ],
      "interventions": [
        {
          "name": "Over-The-Counter (OTC) hearing aid",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2027-07-01",
      "completion_date": "2031-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-08",
      "last_synced_at": "2026-09-07T08:49:17.417Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07288463"
    },
    {
      "nct_id": "NCT07796139",
      "title": "Nasal Dilator Therapy for Patulous Eustachian Tube Dysfunction",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Patulous Eustachian Tube Dysfunction",
        "Eustachian Tube Dysfunction"
      ],
      "interventions": [
        {
          "name": "Internal nasal dilator",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The Methodist Hospital Research Institute",
      "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": "2026-04-22",
      "completion_date": "2027-04-22",
      "has_results": false,
      "last_update_posted_date": "2026-08-31",
      "last_synced_at": "2026-09-07T08:49:17.417Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07796139"
    },
    {
      "nct_id": "NCT06167161",
      "title": "Clinical Investigation and Validation of a Self-fitted Air-conduction Hearing Aid",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Loss"
      ],
      "interventions": [
        {
          "name": "Hearing aid",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Concha Inc.",
      "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": 21,
      "start_date": "2023-01-30",
      "completion_date": "2023-05-30",
      "has_results": false,
      "last_update_posted_date": "2023-12-18",
      "last_synced_at": "2026-09-07T08:49:17.417Z",
      "location_count": 2,
      "location_summary": "San Jose, California • Minneapolis, Minnesota",
      "locations": [
        {
          "city": "San Jose",
          "state": "California"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06167161"
    },
    {
      "nct_id": "NCT04671381",
      "title": "Improving Access and Affordability of Adult Hearing Healthcare",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Loss"
      ],
      "interventions": [
        {
          "name": "Hearing Evaluation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Over-the-Counter Hearing Aid (OTC HA) Fitting and Orientation",
          "type": "DEVICE"
        },
        {
          "name": "Four Weeks of Aural Rehabilitation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Provision of Over-the-Counter Hearing Aids",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DEVICE"
      ],
      "sponsor": "University of Alabama, Tuscaloosa",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 210,
      "start_date": "2021-01-01",
      "completion_date": "2025-12",
      "has_results": false,
      "last_update_posted_date": "2024-10-30",
      "last_synced_at": "2026-09-07T08:49:17.417Z",
      "location_count": 1,
      "location_summary": "Tuscaloosa, Alabama",
      "locations": [
        {
          "city": "Tuscaloosa",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04671381"
    },
    {
      "nct_id": "NCT06499805",
      "title": "Barriers and Facilitators to OTC Hearing Aids Success",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Loss, Sensorineural",
        "Presbycusis"
      ],
      "interventions": [
        {
          "name": "Audiologist-based fitting",
          "type": "DEVICE"
        },
        {
          "name": "Over-the-counter fitting",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Yu-Hsiang Wu",
      "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": 360,
      "start_date": "2025-03-15",
      "completion_date": "2029-04-01",
      "has_results": false,
      "last_update_posted_date": "2025-05-21",
      "last_synced_at": "2026-09-07T08:49:17.417Z",
      "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/NCT06499805"
    },
    {
      "nct_id": "NCT04030299",
      "title": "Longitudinal Outcomes of Hearing Aids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Presbycusis"
      ],
      "interventions": [
        {
          "name": "Over-the-counter 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": 34,
      "start_date": "2019-09-01",
      "completion_date": "2022-09-01",
      "has_results": true,
      "last_update_posted_date": "2024-08-13",
      "last_synced_at": "2026-09-07T08:49:17.417Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04030299"
    }
  ]
}