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Ataxia-intellectual disability-oculomotor apraxia-cerebellar cysts syndrome is a rare neuro-ophthalmological disease characterized by nonprogressive cerebellar ataxia, delayed motor and language development, and intellectual disability in addition to ophthalmological abnormalities (e.g. oculomotor apraxia, strabismus, amblyopia, retinal dystrophy, and myopia). Cerebellar cysts, cerebellar dysplasia and cerebellar vermis hypoplasia, seen on magnetic resonance imaging, are also characteristic of the disease.
Features include sometimes findings: Low muscle tone (hypotonia) and Generalized hypotonia. 18 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Eyes | 7 | Strabismus, Retinal thinning on OCT, Nystagmus |
Muscles |
LAMA1 encodes laminin subunit alpha 1 (3,075 aa). Binding to cells via a high affinity receptor, laminin is thought to mediate the attachment, migration and organization of cells into tissues during embryonic development by interacting with other extracellular matrix components. Highest expression in Testis (22.3 TPM) and Cells Cultured fibroblasts (17.2 TPM).
Ataxia - intellectual disability - oculomotor apraxia - cerebellar cysts syndrome is associated with mutations in the LAMA1 gene on chromosome 18.
LAMA1 is classified as a druggable target (Druggable Genome category) with score 1.4.
Genetic testing for LAMA1 is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for ataxia - intellectual disability - oculomotor apraxia - cerebellar cysts syndrome has been reported in the published literature.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for ataxia - intellectual disability - oculomotor apraxia - cerebellar cysts syndrome.
11 publications have been identified in PubMed for ataxia - intellectual disability - oculomotor apraxia - cerebellar cysts syndrome. Research spans Case Report / Case Series (82%), Diagnostic / Biomarker (9%), and Review / Meta-Analysis (9%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 9 | 82% |
Data assembled from 6 of 12 sources · Last updated Sep 20, 2026, 11:35 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
3
Low muscle tone (hypotonia), Generalized hypotonia, Retinal atrophy |
Brain and nerves | 2 | Delayed speech and language development, Abnormal periventricular white matter morphology |
Testing and diagnosis research |
1 |
9% |
Research summaries | 1 | 9% |
Huang S (2026). [PMID: 42043906](https://pubmed.ncbi.nlm.nih.gov/42043906/). *Mol Genet Genomic Med*. [Case Report / Case Series]
Yilmaz I (2026). [PMID: 42105148](https://pubmed.ncbi.nlm.nih.gov/42105148/). *Cerebellum*. [Case Report / Case Series]
Gulkas S (2026). [PMID: 41498711](https://pubmed.ncbi.nlm.nih.gov/41498711/). *Ophthalmol Retina*. [Diagnostic / Biomarker]
Moon WY (2025). [PMID: 40428839](https://pubmed.ncbi.nlm.nih.gov/40428839/). *Medicina (Kaunas)*. [Review / Meta-Analysis]
Sure A (2025). [PMID: 40711401](https://pubmed.ncbi.nlm.nih.gov/40711401/). *Ophthalmic Surg Lasers Imaging Retina*. [Case Report / Case Series]
Raftopoulos KMM (2025). [PMID: 39925441](https://pubmed.ncbi.nlm.nih.gov/39925441/). *Glob Med Genet*. [Case Report / Case Series]
Radder S (2025). [PMID: 41426793](https://pubmed.ncbi.nlm.nih.gov/41426793/). *Cureus*. [Case Report / Case Series]
Shah S (2025). [PMID: 39539843](https://pubmed.ncbi.nlm.nih.gov/39539843/). *J Vitreoretin Dis*. [Case Report / Case Series]
Alsahlawi Z (2025). [PMID: 39925523](https://pubmed.ncbi.nlm.nih.gov/39925523/). *Cureus*. [Case Report / Case Series]
Pereira-Macedo M (2024). [PMID: 39133430](https://pubmed.ncbi.nlm.nih.gov/39133430/). *Cerebellum*. [Case Report / Case Series]