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Spinocerebellar ataxia type 30 (SCA30) is a very rare subtype of autosomal dominant cerebellar ataxia type III (ADCA type III) characterized by a slowly progressive and relatively pure ataxia.
Features include sometimes findings: Gaze-evoked nystagmus. 5 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Eyes | 2 | Gaze-evoked nystagmus, Hypermetric saccades |
Brain and nerves |
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
1 clinical trial registered, 1 recruiting. Interventions under study include other interventions. Research is primarily sponsored by academic and government institutions.
4 publications have been identified in PubMed for spinocerebellar ataxia type 30. Research spans Clinical Trial Publication (50%), Review / Meta-Analysis (25%), and Case Report / Case Series (25%).
Nakagawa Y (2025). [PMID: 41079917](https://pubmed.ncbi.nlm.nih.gov/41079917/). *Journal of Alzheimer's disease reports*. [Case Report / Case Series]
Macpherson CE (2025). [PMID: 41445681](https://pubmed.ncbi.nlm.nih.gov/41445681/). *International journal of telerehabilitation*. [Clinical Trial Publication]
McNames J (2025). [PMID: 41107202](https://pubmed.ncbi.nlm.nih.gov/41107202/). *The Lancet. Digital health*. [Clinical Trial Publication]
Zesiewicz TA (2025). [PMID: 40748127](https://pubmed.ncbi.nlm.nih.gov/40748127/). *Continuum (Minneapolis, Minn.)*. [Review / Meta-Analysis]
Data assembled from 6 of 12 sources · Last updated Sep 19, 2026, 3:01 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
2
Dysarthria, Ataxia |
Muscles | 1 | Shrinkage of the cerebellum (cerebellar atrophy) |