{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hereditary+Retinal+Dystrophy&page=3",
    "query": {
      "condition": "Hereditary Retinal Dystrophy",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 164,
    "total_pages": 17,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hereditary+Retinal+Dystrophy&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hereditary+Retinal+Dystrophy&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-21T03:40:59.711Z",
  "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": "NCT01233609",
      "title": "Trial of Oral Valproic Acid for Retinitis Pigmentosa",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "Valproic Acid",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Foundation Fighting Blindness",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 90,
      "start_date": "2010-11",
      "completion_date": "2015-12",
      "has_results": true,
      "last_update_posted_date": "2017-12-02",
      "last_synced_at": "2026-10-21T03:40:59.711Z",
      "location_count": 6,
      "location_summary": "Miami, Florida • Ann Arbor, Michigan • Portland, Oregon + 3 more",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01233609"
    },
    {
      "nct_id": "NCT05179460",
      "title": "A Study of Pentosan Polysulfate Sodium and the Development of Pigmentary Maculopathy and Pigmentary Retinopathy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pigmentary Maculopathy",
        "Pigmentary Retinopathy",
        "Interstitial Cystitis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Janssen Research & Development, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2021-10-26",
      "completion_date": "2022-05-20",
      "has_results": false,
      "last_update_posted_date": "2025-06-26",
      "last_synced_at": "2026-10-21T03:40:59.711Z",
      "location_count": 1,
      "location_summary": "Titusville, New Jersey",
      "locations": [
        {
          "city": "Titusville",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05179460"
    },
    {
      "nct_id": "NCT03845218",
      "title": "Retinitis Pigmentosa Clinical Measures and Repeatability Testing of Potential Outcome Measures",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Retinitis Pigmentosa"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Eye Institute (NEI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "12 Years to 100 Years"
      },
      "enrollment_count": 49,
      "start_date": "2019-09-27",
      "completion_date": "2023-07-19",
      "has_results": false,
      "last_update_posted_date": "2026-09-17",
      "last_synced_at": "2026-10-21T03:40:59.711Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03845218"
    },
    {
      "nct_id": "NCT06574997",
      "title": "Expanded Access Program for RP in Adults",
      "overall_status": "NO_LONGER_AVAILABLE",
      "study_type": "EXPANDED_ACCESS",
      "phases": [],
      "conditions": [
        "Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "OCU400",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ocugen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": null,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2026-10-02",
      "last_synced_at": "2026-10-21T03:40:59.711Z",
      "location_count": 5,
      "location_summary": "Phoenix, Arizona • Deerfield Beach, Florida • Erie, Pennsylvania + 2 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Deerfield Beach",
          "state": "Florida"
        },
        {
          "city": "Erie",
          "state": "Pennsylvania"
        },
        {
          "city": "McAllen",
          "state": "Texas"
        },
        {
          "city": "La Crosse",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06574997"
    },
    {
      "nct_id": "NCT03322930",
      "title": "Rod Sensitivity in Age-related Macular Degeneration (AMD) and Retinitis Pigmentosa (RP)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Retinitis Pigmentosa",
        "AMD"
      ],
      "interventions": [
        {
          "name": "Rod sensitivity",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Retina Foundation of the Southwest",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "10 Years to 85 Years"
      },
      "enrollment_count": 40,
      "start_date": "2017-10-01",
      "completion_date": "2019-03-01",
      "has_results": true,
      "last_update_posted_date": "2019-12-23",
      "last_synced_at": "2026-10-21T03:40:59.711Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03322930"
    },
    {
      "nct_id": "NCT03597399",
      "title": "A Patient Registry Study for Patients Treated With Voretigene Neparvovec in US",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Confirmed Biallelic RPE65 Mutation-associated Retinal Dystrophy"
      ],
      "interventions": [
        {
          "name": "AAV2-hRPE65v2,voretigene neparvovec-rzyl",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Spark Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Months and older"
      },
      "enrollment_count": 87,
      "start_date": "2019-01-10",
      "completion_date": "2025-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-09-22",
      "last_synced_at": "2026-10-21T03:40:59.711Z",
      "location_count": 10,
      "location_summary": "Los Angeles, California • Miami, Florida • Iowa City, Iowa + 6 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03597399"
    },
    {
      "nct_id": "NCT00346853",
      "title": "Phase 1 Pilot Study of 4-MP to Treat Stargardt Macular Dystrophy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Macular Dystrophy, Corneal"
      ],
      "interventions": [
        {
          "name": "4-Methylpyrazole",
          "type": "DRUG"
        },
        {
          "name": "saline",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 10,
      "start_date": "2005-11",
      "completion_date": "2006-09",
      "has_results": false,
      "last_update_posted_date": "2020-08-05",
      "last_synced_at": "2026-10-21T03:40:59.711Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00346853"
    },
    {
      "nct_id": "NCT03629899",
      "title": "RETINA IMPLANT Alpha AMS in Blind Patients With Retinitis Pigmentosa",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "RETINA IMPLANT Alpha AMS",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Wills Eye",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2019-03",
      "completion_date": "2025-07",
      "has_results": false,
      "last_update_posted_date": "2019-05-10",
      "last_synced_at": "2026-10-21T03:40:59.711Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03629899"
    },
    {
      "nct_id": "NCT04239625",
      "title": "Open-Label Extension: Tolerability and Effects of ALK-001 on Stargardt Disease (TEASE)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Stargardt Disease",
        "Stargardt Macular Degeneration",
        "Stargardt Macular Dystrophy",
        "Autosomal Recessive Stargardt Disease 1 (ABCA4-related)"
      ],
      "interventions": [
        {
          "name": "ALK-001",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Alkeus Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "8 Years to 70 Years"
      },
      "enrollment_count": 200,
      "start_date": "2019-12-20",
      "completion_date": "2029-12",
      "has_results": false,
      "last_update_posted_date": "2026-09-21",
      "last_synced_at": "2026-10-21T03:40:59.711Z",
      "location_count": 8,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Aurora, Colorado + 5 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04239625"
    },
    {
      "nct_id": "NCT04285398",
      "title": "Prospective Natural History Study of Retinitis Pigmentosa",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "Ophthalmic examinations",
          "type": "OTHER"
        },
        {
          "name": "Mobility Test",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "SparingVision",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 82,
      "start_date": "2020-02-12",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-05-22",
      "last_synced_at": "2026-10-21T03:40:59.711Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04285398"
    }
  ]
}