{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Vision%3B+Loss%2C+Both+Eyes",
    "query": {
      "condition": "Vision; Loss, Both Eyes"
    },
    "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": "2026-07-23T16:05:25.300Z",
  "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": "NCT01163032",
      "title": "Efficacy and Safety of Tasimelteon Compared With Placebo in Totally Blind Subjects With Non-24-Hour Sleep-Wake Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Non-24-Hour Sleep-Wake Disorder"
      ],
      "interventions": [
        {
          "name": "tasimelteon",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanda Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 136,
      "start_date": "2010-08",
      "completion_date": "2012-11",
      "has_results": true,
      "last_update_posted_date": "2014-10-16",
      "last_synced_at": "2026-07-23T16:05:25.300Z",
      "location_count": 23,
      "location_summary": "Phoenix, Arizona • Orange, California • Palo Alto, California + 20 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01163032"
    },
    {
      "nct_id": "NCT06121219",
      "title": "Effect of Visual Retraining After Stroke",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vision Loss Partial",
        "Vision; Loss, Both Eyes",
        "Hemianopia Homonymous",
        "Hemianopia",
        "Quadrantanopia",
        "Stroke, Ischemic",
        "Stroke - Occipital Infarction",
        "Cortical Blindness"
      ],
      "interventions": [
        {
          "name": "Training in the Blind Field",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "21 Years to 80 Years"
      },
      "enrollment_count": 100,
      "start_date": "2024-09-05",
      "completion_date": "2032-01",
      "has_results": false,
      "last_update_posted_date": "2025-07-16",
      "last_synced_at": "2026-07-23T16:05:25.300Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06121219"
    },
    {
      "nct_id": "NCT00795236",
      "title": "Melatonin Studies of Totally Blind Children",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Disorder",
        "Blindness"
      ],
      "interventions": [
        {
          "name": "Melatonin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "5 Years to 20 Years"
      },
      "enrollment_count": 13,
      "start_date": "2009-11",
      "completion_date": "2015-06",
      "has_results": true,
      "last_update_posted_date": "2019-11-27",
      "last_synced_at": "2026-07-23T16:05:25.300Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00795236"
    },
    {
      "nct_id": "NCT04798924",
      "title": "Visual Rehabilitation After Occipital Stroke",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stroke, Ischemic",
        "Quadrantanopia",
        "Vision Loss Partial",
        "Visual Field Defect, Peripheral",
        "Peripheral Visual Field Defect of Both Eyes",
        "Peripheral Visual Field Defect",
        "Hemianopsia",
        "Hemianopia",
        "Homonymous Hemianopia",
        "Homonymous Hemianopsia",
        "Visual Fields Hemianopsia",
        "Occipital Lobe Infarct",
        "Quadrantanopsia",
        "Stroke Hemorrhagic"
      ],
      "interventions": [
        {
          "name": "Subacute Training in the intact field",
          "type": "DEVICE"
        },
        {
          "name": "Subacute Training in the blind field",
          "type": "DEVICE"
        },
        {
          "name": "Chronic Training in the blind field",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "21 Years to 75 Years"
      },
      "enrollment_count": 60,
      "start_date": "2021-07-19",
      "completion_date": "2028-01",
      "has_results": false,
      "last_update_posted_date": "2025-12-03",
      "last_synced_at": "2026-07-23T16:05:25.300Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04798924"
    },
    {
      "nct_id": "NCT04249505",
      "title": "Refractive Accuracy of \"2WIN\" and Portable Autorefractors",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Refractive Error - Myopia Axial",
        "Astigmatism",
        "Accomodation",
        "Visual Impairment",
        "Hyperopia of Both Eyes"
      ],
      "interventions": [
        {
          "name": "\"2WIN\" Photoscreener",
          "type": "DEVICE"
        },
        {
          "name": "\"Plusoptix A12\"",
          "type": "DEVICE"
        },
        {
          "name": "\"Retinomax\"",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Alaska Blind Child Discovery",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "6 Months to 95 Years"
      },
      "enrollment_count": 708,
      "start_date": "2020-01-09",
      "completion_date": "2021-04-01",
      "has_results": false,
      "last_update_posted_date": "2021-07-23",
      "last_synced_at": "2026-07-23T16:05:25.300Z",
      "location_count": 1,
      "location_summary": "Anchorage, Alaska",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04249505"
    },
    {
      "nct_id": "NCT00972075",
      "title": "Efficacy and Safety of Circadin for Non-24 Hour Sleep-Wake Disorder in Totally Blind Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Non-24 Hour Sleep-Wake Disorder",
        "Blindness"
      ],
      "interventions": [
        {
          "name": "melatonin (Circadin)",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Neurim Pharmaceuticals Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "20 Years to 80 Years"
      },
      "enrollment_count": 13,
      "start_date": "2006-02",
      "completion_date": "2007-10",
      "has_results": false,
      "last_update_posted_date": "2009-09-09",
      "last_synced_at": "2026-07-23T16:05:25.300Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia • New York, New York",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00972075"
    }
  ]
}