{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Topcon+Corporation",
    "query": {
      "sponsor": "Topcon Corporation"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 37,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Topcon+Corporation&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-03T23:25:43.007Z",
  "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": "NCT03022383",
      "title": "TopQ Cutoff Threshold Validation Study for DRI OCT Triton Plus",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Healthy Eyes"
      ],
      "interventions": [
        {
          "name": "DRI OCT Triton plus",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Topcon Medical Systems, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2017-01",
      "completion_date": "2017-04",
      "has_results": false,
      "last_update_posted_date": "2022-06-08",
      "last_synced_at": "2026-10-03T23:25:43.007Z",
      "location_count": 1,
      "location_summary": "Oakland, New Jersey",
      "locations": [
        {
          "city": "Oakland",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03022383"
    },
    {
      "nct_id": "NCT03080714",
      "title": "Triton Agreement and Precision Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Healthy Eyes",
        "Eye Diseases"
      ],
      "interventions": [
        {
          "name": "Topcon DRI OCT Triton (plus)",
          "type": "DEVICE"
        },
        {
          "name": "3D OCT-1 Maestro",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Topcon Medical Systems, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 88,
      "start_date": "2017-03-13",
      "completion_date": "2017-10-30",
      "has_results": false,
      "last_update_posted_date": "2022-06-08",
      "last_synced_at": "2026-10-03T23:25:43.007Z",
      "location_count": 1,
      "location_summary": "Willmar, Minnesota",
      "locations": [
        {
          "city": "Willmar",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03080714"
    },
    {
      "nct_id": "NCT02444039",
      "title": "Slit Lamp and Digital Camera Attachment",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Any Willing and Able Person for Ocular Imaging"
      ],
      "interventions": [
        {
          "name": "SL-D301",
          "type": "DEVICE"
        },
        {
          "name": "DC-4",
          "type": "DEVICE"
        },
        {
          "name": "SL-3G",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Topcon Medical Systems, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2014-11",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2022-06-08",
      "last_synced_at": "2026-10-03T23:25:43.007Z",
      "location_count": 1,
      "location_summary": "Oakland, New Jersey",
      "locations": [
        {
          "city": "Oakland",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02444039"
    },
    {
      "nct_id": "NCT06135727",
      "title": "Screening Protocol",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Glaucoma"
      ],
      "interventions": [
        {
          "name": "Maestro2 OCT",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Topcon Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 26,
      "start_date": "2023-11-07",
      "completion_date": "2024-08-02",
      "has_results": false,
      "last_update_posted_date": "2025-09-10",
      "last_synced_at": "2026-10-03T23:25:43.007Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06135727"
    },
    {
      "nct_id": "NCT05286502",
      "title": "NW500 Non-Mydriatic Retinal Camera Clinical Performance Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Fundus Photography"
      ],
      "interventions": [
        {
          "name": "fundus photography",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Topcon Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2022-03-01",
      "completion_date": "2022-03-01",
      "has_results": false,
      "last_update_posted_date": "2022-06-08",
      "last_synced_at": "2026-10-03T23:25:43.007Z",
      "location_count": 1,
      "location_summary": "Oakland, New Jersey",
      "locations": [
        {
          "city": "Oakland",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05286502"
    },
    {
      "nct_id": "NCT01027936",
      "title": "An Age-Stratified Data Collection Study to Establish a Normative Database Using the 3D Optical Coherence Tomography 3D OCT-1000 Mark II",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Healthy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Topcon Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2009-04-30",
      "completion_date": "2009-04-30",
      "has_results": false,
      "last_update_posted_date": "2024-12-13",
      "last_synced_at": "2026-10-03T23:25:43.007Z",
      "location_count": 6,
      "location_summary": "La Jolla, California • Overland Park, Kansas • New York, New York + 1 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Overland Park",
          "state": "Kansas"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01027936"
    },
    {
      "nct_id": "NCT01398852",
      "title": "Safety and Effectiveness Study of the VEGA UV-A System for Cross-linking in Eyes With Keratoconus and Ectasia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Keratoconus and Ectasia"
      ],
      "interventions": [
        {
          "name": "Riboflavin",
          "type": "DRUG"
        },
        {
          "name": "VEGA UV-A Illumination System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Topcon Medical Systems, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 500,
      "start_date": "2010-12",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2022-06-29",
      "last_synced_at": "2026-10-03T23:25:43.007Z",
      "location_count": 13,
      "location_summary": "Phoenix, Arizona • Atlanta, Georgia • Boston, Massachusetts + 7 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Bloomington",
          "state": "Minnesota"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01398852"
    },
    {
      "nct_id": "NCT02293174",
      "title": "Retinal Fundus Camera Evaluation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Normal Healthy Subjects With no Known Ocular Diseases"
      ],
      "interventions": [
        {
          "name": "Topcon TRC-NW400",
          "type": "DEVICE"
        },
        {
          "name": "TRC-NW8",
          "type": "DEVICE"
        },
        {
          "name": "TRC-NW400",
          "type": "DEVICE"
        },
        {
          "name": "Canon-CR2",
          "type": "DEVICE"
        },
        {
          "name": "Zeiss Visucam PRO",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Topcon Medical Systems, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2014-09",
      "completion_date": "2015-01",
      "has_results": false,
      "last_update_posted_date": "2022-06-08",
      "last_synced_at": "2026-10-03T23:25:43.007Z",
      "location_count": 1,
      "location_summary": "Oakland, New Jersey",
      "locations": [
        {
          "city": "Oakland",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02293174"
    },
    {
      "nct_id": "NCT02427256",
      "title": "Second Comparative Study of Specular Microscopes for Endothelial and Corneal Cell Measurements",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Corneal Endothelial Cell Loss"
      ],
      "interventions": [
        {
          "name": "Topcon Specular Microscope SP-1P",
          "type": "DEVICE"
        },
        {
          "name": "Konan Specular Microscope CELLCHEK XL",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Topcon Medical Systems, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 76,
      "start_date": "2015-02",
      "completion_date": "2015-02",
      "has_results": false,
      "last_update_posted_date": "2022-06-08",
      "last_synced_at": "2026-10-03T23:25:43.007Z",
      "location_count": 1,
      "location_summary": "Andover, Massachusetts",
      "locations": [
        {
          "city": "Andover",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02427256"
    },
    {
      "nct_id": "NCT02138266",
      "title": "Comparative Study of Specular Microscopes for Endothelial and Corneal Cell Measurements",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Corneal Endothelial Cell Loss"
      ],
      "interventions": [
        {
          "name": "Topcon Specular Microscope SP-1P",
          "type": "DEVICE"
        },
        {
          "name": "Konan Specular Microscope CELLCHEK XL",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Topcon Medical Systems, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 65,
      "start_date": "2014-02",
      "completion_date": "2014-09",
      "has_results": false,
      "last_update_posted_date": "2022-06-08",
      "last_synced_at": "2026-10-03T23:25:43.007Z",
      "location_count": 1,
      "location_summary": "Andover, Massachusetts",
      "locations": [
        {
          "city": "Andover",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02138266"
    }
  ]
}