{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=X-Linked+Retinitis+Pigmentosa",
    "query": {
      "condition": "X-Linked Retinitis Pigmentosa"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 25,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=X-Linked+Retinitis+Pigmentosa&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T09:46:36.835Z",
  "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": "NCT06333249",
      "title": "A Study Comparing Two Doses of AGTC-501 in Male Subjects With X-linked Retinitis Pigmentosa Caused by RPGR Mutations (SKYLINE)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "X-Linked Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "rAAV2tYF-GRK1-RPGR",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Beacon Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "50 Years",
        "sex": "MALE",
        "summary": "8 Years to 50 Years · Male only"
      },
      "enrollment_count": 14,
      "start_date": "2021-04-13",
      "completion_date": "2027-02",
      "has_results": false,
      "last_update_posted_date": "2024-08-12",
      "last_synced_at": "2026-05-22T09:46:36.835Z",
      "location_count": 6,
      "location_summary": "Jacksonville, Florida • Boston, Massachusetts • Cincinnati, Ohio + 3 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06333249"
    },
    {
      "nct_id": "NCT07502664",
      "title": "Development and Evaluation of Functional Visual Field and Navigation Endpoints in Moderate to Profound Inherited Retinal Disease (DEFINE-IRD)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Retinitis Pigmentosa",
        "Stargardt Macular Dystrophy",
        "Stargardt Disease",
        "Geographic Atrophy From Age-related Macular Degeneration",
        "X-linked Retinoschisis",
        "Retinal Dystrophies"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Ray Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2026-02-19",
      "completion_date": "2027-02",
      "has_results": false,
      "last_update_posted_date": "2026-03-31",
      "last_synced_at": "2026-05-22T09:46:36.835Z",
      "location_count": 1,
      "location_summary": "Irvine, California",
      "locations": [
        {
          "city": "Irvine",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07502664"
    },
    {
      "nct_id": "NCT03584165",
      "title": "Long-term Safety and Efficacy Follow-up of BIIB111 for the Treatment of Choroideremia and BIIB112 for the Treatment of X-Linked Retinitis Pigmentosa",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Choroideremia",
        "X-Linked Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "BIIB111",
          "type": "GENETIC"
        },
        {
          "name": "BIIB112",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "GENETIC"
      ],
      "sponsor": "NightstaRx Ltd, a Biogen Company",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 330,
      "start_date": "2018-06-04",
      "completion_date": "2026-06-04",
      "has_results": false,
      "last_update_posted_date": "2025-06-12",
      "last_synced_at": "2026-05-22T09:46:36.835Z",
      "location_count": 10,
      "location_summary": "Los Angeles, California • Gainesville, Florida • Miami, Florida + 7 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03584165"
    },
    {
      "nct_id": "NCT02435940",
      "title": "Inherited Retinal Degenerative Disease Registry",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Eye Diseases Hereditary",
        "Retinal Disease",
        "Achromatopsia",
        "Bardet-Biedl Syndrome",
        "Bassen-Kornzweig Syndrome",
        "Batten Disease",
        "Best Disease",
        "Choroidal Dystrophy",
        "Choroideremia",
        "Cone Dystrophy",
        "Cone-Rod Dystrophy",
        "Congenital Stationary Night Blindness",
        "Enhanced S-Cone Syndrome",
        "Fundus Albipunctatus",
        "Goldmann-Favre Syndrome",
        "Gyrate Atrophy",
        "Juvenile Macular Degeneration",
        "Kearns-Sayre Syndrome",
        "Leber Congenital Amaurosis",
        "Refsum Syndrome",
        "Retinitis Pigmentosa",
        "Retinitis Punctata Albescens",
        "Retinoschisis",
        "Rod-Cone Dystrophy",
        "Rod Dystrophy",
        "Rod Monochromacy",
        "Stargardt Disease",
        "Usher Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Foundation Fighting Blindness",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 20000,
      "start_date": "2014-06",
      "completion_date": "2037-06",
      "has_results": false,
      "last_update_posted_date": "2026-05-19",
      "last_synced_at": "2026-05-22T09:46:36.835Z",
      "location_count": 1,
      "location_summary": "Columbia, Maryland",
      "locations": [
        {
          "city": "Columbia",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02435940"
    },
    {
      "nct_id": "NCT06092346",
      "title": "A Natural History Study Seeks to Understand the Clinical, Genomic, Pharmacological, Laboratory, and Dietary Determinates of Pyrimidine and Purine Metabolism Disorders",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "AMPD3, OMIM*102772, AMP Deaminase Deficiency",
        "AK1, OMIM *103000, Adenylate Kinase Deficiency",
        "AMPD1, OMIM *102770, Myopathy Due to Myoadenylate Deaminase Deficiency",
        "TPMT, OMIM *187680, Thoipurines, Poor Metabolism of",
        "IMPDH1, OMIM *146690, Retinitis Pigmentosa Type 10, Leber Congenital Amauriosis Type 11",
        "APRT, OMIM *102600, Adenine Phosphoribosyltransferase Deficiency",
        "HPRT1, OMIM *308000 Lesch-Nyhan Disease",
        "XDH, OMIM *607633, Xanthinuria Type 1",
        "SLC2A9, OMIM *606142 Hypouricemia",
        "SLC22A12, OMIM *607096 Hypouricemia",
        "PRPS1 Def, OMIM *311850, Arts Syndrome; Charcot-Marie-Tooth Disease",
        "PRPS1 SA, OMIM *311850 Gout, PRPS-related Phosphoribosylpyrophosphate Synthetase Superactivity",
        "AMPD2, OMIM *102771, Spastic Paraplegia 63; Pontocerebellar Hypoplasia",
        "ITPA, OMIM *147520, Inosine Triphosphatase Deficiency; Developmental and Epileptic Encephalopathy 35",
        "ADSL, OMIM *608222, Adenylosuccinate Lyase Deficiency",
        "PNP, OMIM *164050, Nucleoside Phosphorylase Deficiency",
        "ADA2, OMIM *607575,Sneddon Syndrome; VAIHS",
        "CAD, *1140120, Developmental and Epileptic Encephalopathy",
        "UPB1, OMIM *606673, Beta-ureidopropionase Deficiency",
        "DPYS, OMIM *613326, Dihydropyrimidinase Deficiency",
        "DPYD, OMIM *274270, Dihydropyrimidine Dehydrogenase Deficiency",
        "DHODH, OMIM *126064, Miller Syndrome (Postaxial Acrofacial Dysostosis)",
        "UMPS, OMIM *613891, Orotic Aciduria",
        "NT5C3A<TAB>, OMIM *606224, Anemia, Hemolytic, Due to UMPH1 Deficiency",
        "UNG, OMIM *191525, Hyper-IgM Syndrome 5",
        "AICDA, OMIM *605257, Immunodeficiency With Hyper-IgM, Type 2; HIGM2",
        "Purine-Pyrimidine Metabolism",
        "Metabolic Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Human Genome Research Institute (NHGRI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "1 Month to 100 Years"
      },
      "enrollment_count": 999,
      "start_date": "2023-12-19",
      "completion_date": "2099-01-01",
      "has_results": false,
      "last_update_posted_date": "2025-09-04",
      "last_synced_at": "2026-05-22T09:46:36.835Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06092346"
    },
    {
      "nct_id": "NCT04850118",
      "title": "A Clinical Trial Evaluating the Safety and Efficacy of a Single Subretinal Injection of AGTC-501 in Participants With XLRP",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "X-Linked Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "rAAV2tYF-GRK1-hRPGRco",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Control",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Beacon Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "50 Years",
        "sex": "MALE",
        "summary": "12 Years to 50 Years · Male only"
      },
      "enrollment_count": 85,
      "start_date": "2024-03-14",
      "completion_date": "2031-10-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-07",
      "last_synced_at": "2026-05-22T09:46:36.835Z",
      "location_count": 19,
      "location_summary": "Scottsdale, Arizona • Los Angeles, California • Jacksonville, Florida + 15 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Carmel",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04850118"
    },
    {
      "nct_id": "NCT04794101",
      "title": "Follow-up Gene Therapy Trial for the Treatment of X-linked Retinitis Pigmentosa Associated With Variants in the RPGR Gene",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "X-Linked Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "Genetic: AAV5-hRKp.RPGR Intermediate Dose",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Genetic: AAV5-hRKp.RPGR Low Dose",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Janssen Research & Development, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "3 Years and older"
      },
      "enrollment_count": 97,
      "start_date": "2020-12-04",
      "completion_date": "2029-12-07",
      "has_results": false,
      "last_update_posted_date": "2026-05-08",
      "last_synced_at": "2026-05-22T09:46:36.835Z",
      "location_count": 10,
      "location_summary": "La Jolla, California • Los Angeles, California • Palo Alto, California + 7 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04794101"
    },
    {
      "nct_id": "NCT03316560",
      "title": "Safety and Efficacy of rAAV2tYF-GRK1-RPGR in Subjects With X-linked Retinitis Pigmentosa Caused by RPGR Mutations",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "X-Linked Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "rAAV2tYF-GRK1-RPGR",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Beacon Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "50 Years",
        "sex": "MALE",
        "summary": "6 Years to 50 Years · Male only"
      },
      "enrollment_count": 29,
      "start_date": "2018-04-16",
      "completion_date": "2025-03",
      "has_results": false,
      "last_update_posted_date": "2024-05-20",
      "last_synced_at": "2026-05-22T09:46:36.835Z",
      "location_count": 4,
      "location_summary": "Durham, North Carolina • Cincinnati, Ohio • Portland, Oregon + 1 more",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03316560"
    },
    {
      "nct_id": "NCT03116113",
      "title": "A Clinical Trial of Retinal Gene Therapy for X-linked Retinitis Pigmentosa Using BIIB112",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "X-Linked Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "BIIB112",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "10 Years and older · Male only"
      },
      "enrollment_count": 50,
      "start_date": "2017-03-08",
      "completion_date": "2020-11-18",
      "has_results": true,
      "last_update_posted_date": "2024-01-18",
      "last_synced_at": "2026-05-22T09:46:36.835Z",
      "location_count": 5,
      "location_summary": "Gainesville, Florida • Miami, Florida • Portland, Oregon + 2 more",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03116113"
    },
    {
      "nct_id": "NCT04926129",
      "title": "Natural History of the Progression of X-Linked Retinitis Pigmentosa",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "X-Linked Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "Other: Assessments",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "NightstaRx Ltd, a Biogen Company",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "7 Years and older"
      },
      "enrollment_count": 201,
      "start_date": "2017-09-13",
      "completion_date": "2022-12-16",
      "has_results": false,
      "last_update_posted_date": "2023-02-10",
      "last_synced_at": "2026-05-22T09:46:36.835Z",
      "location_count": 10,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • San Francisco, California + 7 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04926129"
    }
  ]
}