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Leber congenital amaurosis (LCA) is a severe inherited retinal dystrophy defined by markedly reduced or absent visual responses on electroretinogram (ERG) testing and profound visual impairment presenting within the first year of life. Affecting approximately 1–9 per 100,000 individuals, LCA encompasses at least 20 recognized subtypes, reflecting substantial genetic heterogeneity across this diagnostic grouping.
Severely reduced visual acuity and abnormal retinal pigmentation are documented in 80–99% of cases. Abnormal optic disc morphology falls within the same very-frequent range. Features documented in 30–79% of reported cases include abnormal electroretinogram, cataract, hypermetropia, keratoconus, photophobia, nystagmus, hypotonia, eye poking behavior, encephalocele, abnormality of neuronal migration, hemiplegia or hemiparesis, aplasia or hypoplasia of the cerebellar vermis, and slow pupillary light response. Hearing impairment, optic disc pallor, autistic behavior, intellectual disability, global developmental delay, motor delay, and optic disc drusen occur in 5–29% of cases.
LCA arises from inherited alterations affecting retinal photoreceptor development and visual signal transduction. The condition demonstrates significant genetic heterogeneity. Certified gene-level records for specific causative variants are not present in this data packet for the broad LCA umbrella grouping.
Diagnosis is based on the combination of profound visual impairment presenting within the first year of life and markedly reduced or undetectable responses on electroretinogram (ERG). Documented affected organ systems include the eye, ear, and nervous system.
No FDA-approved treatments are recorded in this data packet for the broad LCA grouping. Multiple orphan drug designations have been granted for investigational agents targeting specific LCA subtypes; designation does not constitute regulatory approval.
13 trials found
Prognosis data is not certified in this packet. The condition is associated with severe visual impairment from early infancy or childhood.
Thirteen active clinical trials are registered for LCA. The HYPERION Phase 3 trial (NCT06891443, Laboratoires Thea) is recruiting to evaluate sepofarsen in LCA type 10, with anticipated completion October 2028. A Phase 1 subretinal gene transfer study of OPGx-RDH12-1001 (NCT07681778, Opus Genetics) is planned for initiation September 2026 with a primary completion date of July 2034. An expanded newborn screening study (NCT03655223, RTI International) is active but no longer recruiting. The research base includes 178 classified publications dominated by basic science and preclinical research; gene therapy and biomarker publications are present in the record.
Data assembled from 6 of 12 sources · Last updated Sep 19, 2026, 5:33 AM UTC
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AI-curated news mentioning Leber congenital amaurosis
Updated Feb 18, 2026
A study identifies dual mutations in CEP290 and GLI3 in an infant presenting with Leber congenital amaurosis and postaxial polydactyly, resembling Bardet-Biedl syndrome. This research enhances understanding of genetic contributions to these rare conditions.