{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Retinitis+Pigmentosa+%28RP%29",
    "query": {
      "condition": "Retinitis Pigmentosa (RP)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 35,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Retinitis+Pigmentosa+%28RP%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-10T17:07:15.779Z",
  "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": "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": "2026-06-10T17:07:15.779Z",
      "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"
    },
    {
      "nct_id": "NCT05176717",
      "title": "Study to Evaluate the Efficacy Safety and Tolerability of QR-421a in Subjects With RP Due to Mutations in Exon 13 of the USH2A Gene With Early to Moderate Vision Loss (Celeste)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Retinitis Pigmentosa",
        "Usher Syndrome Type 2",
        "Deaf Blind",
        "Retinal Disease",
        "Eye Diseases",
        "Eye Diseases, Hereditary",
        "Eye Disorders Congenital",
        "Vision Disorders"
      ],
      "interventions": [
        {
          "name": "QR-421a",
          "type": "DRUG"
        },
        {
          "name": "Sham-procedure",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Laboratoires Thea",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 5,
      "start_date": "2021-12-15",
      "completion_date": "2022-08-02",
      "has_results": true,
      "last_update_posted_date": "2024-08-07",
      "last_synced_at": "2026-06-10T17:07:15.779Z",
      "location_count": 2,
      "location_summary": "Dallas, Texas • Madison, Wisconsin",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05176717"
    },
    {
      "nct_id": "NCT05392751",
      "title": "Dose Escalation Study to Evaluate the Safety/Tolerability and Efficacy of EA-2353 in Subjects With Retinitis Pigmentosa",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Retinitis Pigmentosa",
        "Retinitis Pigmentosa Syndrome"
      ],
      "interventions": [
        {
          "name": "EA-2353",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Endogena 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": 14,
      "start_date": "2022-06-02",
      "completion_date": "2024-04-24",
      "has_results": false,
      "last_update_posted_date": "2024-10-15",
      "last_synced_at": "2026-06-10T17:07:15.779Z",
      "location_count": 5,
      "location_summary": "Miami, Florida • Ann Arbor, Michigan • Portland, Oregon + 2 more",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "McAllen",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05392751"
    },
    {
      "nct_id": "NCT02320812",
      "title": "Safety of a Single, Intravitreal Injection of Human Retinal Progenitor Cells (jCell) in Retinitis Pigmentosa",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Retinitis Pigmentosa (RP)"
      ],
      "interventions": [
        {
          "name": "human retinal progenitor cells",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "jCyte, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2015-06",
      "completion_date": "2017-07-19",
      "has_results": true,
      "last_update_posted_date": "2019-03-05",
      "last_synced_at": "2026-06-10T17:07:15.779Z",
      "location_count": 2,
      "location_summary": "Irvine, California • Los Angeles, California",
      "locations": [
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02320812"
    },
    {
      "nct_id": "NCT06627179",
      "title": "Study to Evaluate Ultevursen in Subjects With Retinitis Pigmentosa (RP) Due to Mutations in Exon 13 of the USH2A Gene",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Retinitis Pigmentosa (RP)",
        "Usher Syndrome Type 2",
        "Deaf Blind",
        "Retinal Disease",
        "Eye Diseases, Hereditary",
        "Eye Disorders Congenital",
        "Vision Disorders"
      ],
      "interventions": [
        {
          "name": "Intravitreal Injection of Ultevursen",
          "type": "DRUG"
        },
        {
          "name": "No intervention, will not receive any active study intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Laboratoires Thea",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "8 Years and older"
      },
      "enrollment_count": 81,
      "start_date": "2024-12-11",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-30",
      "last_synced_at": "2026-06-10T17:07:15.779Z",
      "location_count": 11,
      "location_summary": "San Francisco, California • Miami, Florida • Atlanta, Georgia + 8 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06627179"
    },
    {
      "nct_id": "NCT01949623",
      "title": "Biomarkers In Retinitis Pigmentosa (BIRP)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "Anterior Chamber (AC) tap",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 100,
      "start_date": "2013-09",
      "completion_date": "2017-07",
      "has_results": false,
      "last_update_posted_date": "2017-08-16",
      "last_synced_at": "2026-06-10T17:07:15.779Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01949623"
    },
    {
      "nct_id": "NCT00407602",
      "title": "Argus® II Retinal Stimulation System Feasibility Protocol",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "Implant of Argus II Retinal Prosthesis",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Second Sight Medical Products",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2006-09",
      "completion_date": "2019-12-31",
      "has_results": true,
      "last_update_posted_date": "2022-01-20",
      "last_synced_at": "2026-06-10T17:07:15.779Z",
      "location_count": 7,
      "location_summary": "Los Angeles, California • San Francisco, California • Baltimore, Maryland + 3 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00407602"
    },
    {
      "nct_id": "NCT02548572",
      "title": "Transcorneal Electrical Stimulation for the Treatment of Retinitis Pigmentosa - a Safety and Efficacy Multicenter Study",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "Transcorneal Electrical Stimulation using Okustim device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Wills Eye",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "22 Years to 80 Years"
      },
      "enrollment_count": 0,
      "start_date": "2019-01",
      "completion_date": "2020-12",
      "has_results": false,
      "last_update_posted_date": "2019-05-01",
      "last_synced_at": "2026-06-10T17:07:15.779Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02548572"
    },
    {
      "nct_id": "NCT06789445",
      "title": "A Study to Investigate the Safety of OpCT-001 in Adults Who Have Primary Photoreceptor Disease (CLARICO)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Primary Photoreceptor Disease",
        "Retinitis Pigmentosa (RP)",
        "Usher Syndrome",
        "Inherited Retinal Disease (IRD)",
        "Rod-Cone Dystrophy",
        "Rod-Cone Disease",
        "Retinal Degeneration",
        "Cone-Rod Disease (C-RD)",
        "Cone-Rod Dystrophy"
      ],
      "interventions": [
        {
          "name": "OpCT-001",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "BlueRock Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 54,
      "start_date": "2025-03-10",
      "completion_date": "2030-10",
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-06-10T17:07:15.779Z",
      "location_count": 4,
      "location_summary": "Miami, Florida • Philadelphia, Pennsylvania • Dallas, Texas + 1 more",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06789445"
    },
    {
      "nct_id": "NCT00458575",
      "title": "A Study to Evaluate the Safety of CNTO 2476 in Patients With Advanced Retinitis Pigmentosa",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "CNTO 2476",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Centocor, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 7,
      "start_date": "2007-04",
      "completion_date": "2013-08",
      "has_results": false,
      "last_update_posted_date": "2014-06-26",
      "last_synced_at": "2026-06-10T17:07:15.779Z",
      "location_count": 3,
      "location_summary": "Miami, Florida • Southwest Portland, Oregon • Dallas, Texas",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Southwest Portland",
          "state": "Oregon"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00458575"
    }
  ]
}