{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Retinitis+Pigmentosa+Syndrome&page=2",
    "query": {
      "condition": "Retinitis Pigmentosa Syndrome",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Retinitis+Pigmentosa+Syndrome&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T14:56:58.563Z",
  "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": "NCT01920867",
      "title": "Stem Cell Ophthalmology Treatment Study",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Retinal Disease",
        "Macular Degeneration",
        "Hereditary Retinal Dystrophy",
        "Optic Nerve Disease",
        "Glaucoma"
      ],
      "interventions": [
        {
          "name": "RB (Retrobulbar)",
          "type": "PROCEDURE"
        },
        {
          "name": "ST (Subtenon)",
          "type": "PROCEDURE"
        },
        {
          "name": "IV (Intravenous)",
          "type": "PROCEDURE"
        },
        {
          "name": "IVIT (Intravitreal)",
          "type": "PROCEDURE"
        },
        {
          "name": "IO (Intraocular)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "MD Stem Cells",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2012-08",
      "completion_date": "2020-07",
      "has_results": false,
      "last_update_posted_date": "2019-10-23",
      "last_synced_at": "2026-07-23T14:56:58.563Z",
      "location_count": 1,
      "location_summary": "Westport, Connecticut",
      "locations": [
        {
          "city": "Westport",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01920867"
    },
    {
      "nct_id": "NCT02065011",
      "title": "A Study to Determine the Long-Term Safety, Tolerability and Biological Activity of SAR421869 in Patients With Usher Syndrome Type 1B",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Usher's Syndrome"
      ],
      "interventions": [
        {
          "name": "Blood draw for the laboratory assessment",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 9,
      "start_date": "2013-09-12",
      "completion_date": "2031-06-13",
      "has_results": false,
      "last_update_posted_date": "2026-01-13",
      "last_synced_at": "2026-07-23T14:56:58.563Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02065011"
    },
    {
      "nct_id": "NCT05194124",
      "title": "Phase 3 Crossover Trial of Two Formulations of Setmelanotide in Participants With Specific Gene Defects in the MC4R Pathway",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Bardet-Biedl Syndrome",
        "POMC Deficiency"
      ],
      "interventions": [
        {
          "name": "Setmelanotide 2 mg",
          "type": "DRUG"
        },
        {
          "name": "Setmelanotide 2.5 mg",
          "type": "DRUG"
        },
        {
          "name": "Setmelanotide 3 mg",
          "type": "DRUG"
        },
        {
          "name": "Setmelanotide 20 mg",
          "type": "DRUG"
        },
        {
          "name": "Setmelanotide 25 mg",
          "type": "DRUG"
        },
        {
          "name": "Setmelanotide 30 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rhythm Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Years and older"
      },
      "enrollment_count": 19,
      "start_date": "2021-12-21",
      "completion_date": "2023-10-19",
      "has_results": true,
      "last_update_posted_date": "2024-11-26",
      "last_synced_at": "2026-07-23T14:56:58.563Z",
      "location_count": 2,
      "location_summary": "Scottsdale, Arizona • Marshfield, Wisconsin",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Marshfield",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05194124"
    },
    {
      "nct_id": "NCT00001347",
      "title": "Study of Usher Syndromes, Type 1 and Type 2",
      "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": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 200,
      "start_date": "1993-06",
      "completion_date": "2002-08",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-07-23T14:56:58.563Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001347"
    },
    {
      "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": "2026-07-06",
      "last_synced_at": "2026-07-23T14:56:58.563Z",
      "location_count": 5,
      "location_summary": "Los Angeles, California • Miami, Florida • Philadelphia, Pennsylvania + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "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": "NCT05012358",
      "title": "Genomic Profiling of Mitochondrial Disease - Imaging Analysis for Precise Mitochondrial Medicine",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Mitochondrial Myopathies",
        "Mitochondrial DNA Mutation",
        "Mitochondrial Diseases",
        "Chronic Progressive External Ophthalmoplegia With Myopathy",
        "Kearns-Sayre Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "15 Years to 80 Years"
      },
      "enrollment_count": 9,
      "start_date": "2022-05-01",
      "completion_date": "2024-01-22",
      "has_results": false,
      "last_update_posted_date": "2024-06-12",
      "last_synced_at": "2026-07-23T14:56:58.563Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05012358"
    },
    {
      "nct_id": "NCT01530659",
      "title": "Retinal Imaging in CNTF -Releasing Encapsulated Cell Implant Treated Patients for Early-stage Retinitis Pigmentosa",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Retinitis Pigmentosa",
        "Usher Syndrome Type 2",
        "Usher Syndrome Type 3"
      ],
      "interventions": [
        {
          "name": "NT-501",
          "type": "DRUG"
        },
        {
          "name": "Sham",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Neurotech Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 22,
      "start_date": "2012-01",
      "completion_date": "2019-07-01",
      "has_results": true,
      "last_update_posted_date": "2023-02-14",
      "last_synced_at": "2026-07-23T14:56:58.563Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01530659"
    },
    {
      "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": "ACTIVE_NOT_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": "2028-07",
      "has_results": false,
      "last_update_posted_date": "2026-07-09",
      "last_synced_at": "2026-07-23T14:56:58.563Z",
      "location_count": 10,
      "location_summary": "San Francisco, California • Miami, Florida • Atlanta, Georgia + 7 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": "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": "2026-07-23T14:56:58.563Z",
      "location_count": 1,
      "location_summary": "Columbia, Maryland",
      "locations": [
        {
          "city": "Columbia",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02435940"
    },
    {
      "nct_id": "NCT04765345",
      "title": "Rate of Progression of PCDH15-Related Retinal Degeneration in Usher Syndrome 1F",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Retinal Degeneration",
        "Retinitis Pigmentosa",
        "Eye Diseases, Hereditary"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Jaeb Center for Health Research",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "8 Years and older"
      },
      "enrollment_count": 44,
      "start_date": "2021-06-08",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-02-04",
      "last_synced_at": "2026-07-23T14:56:58.563Z",
      "location_count": 3,
      "location_summary": "San Francisco, California • Baltimore, Maryland • Durham, North Carolina",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04765345"
    }
  ]
}