{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Visual+Loss&page=4",
    "query": {
      "condition": "Visual Loss",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 104,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Visual+Loss&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Visual+Loss&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-25T18:05:13.296Z",
  "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": "NCT04424979",
      "title": "Feasibility Tests for Various Prism Configurations for Visual Field Loss",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hemianopia, Homonymous",
        "Tunnel Vision",
        "Visual Field Defect, Peripheral",
        "Visual Field Constriction Bilateral",
        "Visual Field Defect Homonymous Bilateral"
      ],
      "interventions": [
        {
          "name": "High power prisms",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Massachusetts Eye and Ear Infirmary",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "7 Years to 80 Years"
      },
      "enrollment_count": 10,
      "start_date": "2020-11-06",
      "completion_date": "2026-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-10-06",
      "last_synced_at": "2026-10-25T18:05:13.296Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04424979"
    },
    {
      "nct_id": "NCT01703559",
      "title": "The Safety and Efficacy of Phentolamine Mesylate Ophthalmic Solution in Subjects With Severe Night Vision Disturbances",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Night Vision Complaints",
        "Decrease in Night Vision",
        "Disturbance; Vision, Loss"
      ],
      "interventions": [
        {
          "name": "Phentolamine Mesylate Ophthalmic Solution 1.0%",
          "type": "DRUG"
        },
        {
          "name": "Phentolamine Mesylate Ophthalmic Solution 0.5%",
          "type": "DRUG"
        },
        {
          "name": "Phentolamine Mesylate Ophthalmic Solution Vehicle (Placebo)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Opus Genetics, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 60,
      "start_date": "2011-09-09",
      "completion_date": "2012-04-30",
      "has_results": true,
      "last_update_posted_date": "2026-10-08",
      "last_synced_at": "2026-10-25T18:05:13.296Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01703559"
    },
    {
      "nct_id": "NCT01653184",
      "title": "Effect of Omega-3-fatty Acids on Blood Levels Omega-3 Fatty Acids in Patients With Age-related Macular Degeneration",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Macular Degeneration"
      ],
      "interventions": [
        {
          "name": "Omega-3 fatty acid",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Wills Eye",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "55 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2012-07",
      "completion_date": "2014-03",
      "has_results": false,
      "last_update_posted_date": "2016-12-12",
      "last_synced_at": "2026-10-25T18:05:13.296Z",
      "location_count": 4,
      "location_summary": "Cherry Hill, New Jersey • Bethlehem, Pennsylvania • Huntingdon Valley, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "Cherry Hill",
          "state": "New Jersey"
        },
        {
          "city": "Bethlehem",
          "state": "Pennsylvania"
        },
        {
          "city": "Huntingdon Valley",
          "state": "Pennsylvania"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01653184"
    },
    {
      "nct_id": "NCT05537220",
      "title": "Oral N-acetylcysteine for Retinitis Pigmentosa",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "N-acetylcysteine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 485,
      "start_date": "2023-10-11",
      "completion_date": "2030-05",
      "has_results": false,
      "last_update_posted_date": "2026-06-15",
      "last_synced_at": "2026-10-25T18:05:13.296Z",
      "location_count": 24,
      "location_summary": "Davis, California • Los Angeles, California • San Francisco, California + 21 more",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05537220"
    },
    {
      "nct_id": "NCT07891910",
      "title": "Iopidine to Decrease Intraocular Pressure Rise After Injections",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Macular Degeneration",
        "Diabetic Retinopathy",
        "Retinal Vein Occlusion",
        "Glaucoma"
      ],
      "interventions": [
        {
          "name": "Apraclonidine 1.0% ophthalmic solution",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Retina Consultants of Delmarva",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2026-10-01",
      "completion_date": "2027-01-01",
      "has_results": false,
      "last_update_posted_date": "2026-10-23",
      "last_synced_at": "2026-10-25T18:05:13.296Z",
      "location_count": 1,
      "location_summary": "Easton, Maryland",
      "locations": [
        {
          "city": "Easton",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07891910"
    },
    {
      "nct_id": "NCT00066248",
      "title": "Cyproheptadine and Megestrol in Preventing Weight Loss in Children With Cachexia Caused By Cancer or Cancer Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Brain Tumor",
        "Central Nervous System Tumors",
        "Cachexia",
        "Leukemia",
        "Lymphoma",
        "Myelodysplastic Syndromes",
        "Myelodysplastic/Myeloproliferative Diseases",
        "Unspecified Childhood Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "cyproheptadine hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "megestrol acetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of South Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "2 Years to 20 Years"
      },
      "enrollment_count": 70,
      "start_date": "2003-06",
      "completion_date": "2007-08",
      "has_results": false,
      "last_update_posted_date": "2014-02-03",
      "last_synced_at": "2026-10-25T18:05:13.296Z",
      "location_count": 40,
      "location_summary": "Oakland, California • Washington D.C., District of Columbia • Gainesville, Florida + 33 more",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00066248"
    },
    {
      "nct_id": "NCT06670989",
      "title": "Training to Modify Fixational Eye Movements for Optimizing Visual Performance in People With Central Vision Loss",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Central Vision Loss From Macular Diseases"
      ],
      "interventions": [
        {
          "name": "Fixation training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "National Eye Institute (NEI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2022-06-01",
      "completion_date": "2025-06-30",
      "has_results": false,
      "last_update_posted_date": "2024-11-01",
      "last_synced_at": "2026-10-25T18:05:13.296Z",
      "location_count": 1,
      "location_summary": "Berkeley, California",
      "locations": [
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06670989"
    },
    {
      "nct_id": "NCT00696189",
      "title": "Effects of Nitrous Oxide on Intraocular Pressure",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Post Operative Visual Loss"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Rutgers, The State University of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 30,
      "start_date": "2006-09",
      "completion_date": "2011-09",
      "has_results": false,
      "last_update_posted_date": "2015-04-24",
      "last_synced_at": "2026-10-25T18:05:13.296Z",
      "location_count": 1,
      "location_summary": "Newark, New Jersey",
      "locations": [
        {
          "city": "Newark",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00696189"
    },
    {
      "nct_id": "NCT00133952",
      "title": "Effect of Ruboxistaurin on Clinically Significant Macular Edema",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Diabetic Macular Edema"
      ],
      "interventions": [
        {
          "name": "Ruboxistaurin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Chromaderm, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 309,
      "start_date": "2005-08",
      "completion_date": "2011-07",
      "has_results": true,
      "last_update_posted_date": "2016-10-06",
      "last_synced_at": "2026-10-25T18:05:13.296Z",
      "location_count": 19,
      "location_summary": "Phoenix, Arizona • Artesia, California • Newark, Delaware + 16 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Artesia",
          "state": "California"
        },
        {
          "city": "Newark",
          "state": "Delaware"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00133952"
    },
    {
      "nct_id": "NCT04458935",
      "title": "Retrospective Case Series of Trans-scleral Cryotherapy for Retinal Hemangioblastoma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Retinal Hemangioblastoma",
        "Von Hippel-Lindau Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Eye Institute (NEI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "7 Years to 120 Years"
      },
      "enrollment_count": 25,
      "start_date": "2020-07-02",
      "completion_date": "2026-06-02",
      "has_results": false,
      "last_update_posted_date": "2026-06-10",
      "last_synced_at": "2026-10-25T18:05:13.296Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04458935"
    }
  ]
}