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Ataxia-telangiectasia variant is a rare, genetic, persistent combined dystonia characterized by clinical signs similar to ataxia-telangiectasia but with a later (usually adulthood) onset and slower progression. Patients typically present extrapyramidal signs, such as resting tremor, choreathetosis, and dystonia, as the initial symptoms and later often develop mild cerebellar ataxia (with gait usually preserved). Telangiectasia and immunodeficiency may be absent but secondary features of ataxia-telangiectasia, such as risk of malignancy, dysarthria and peripheral neuropathy, are frequently present.
No clinical trials have been registered for ataxia - telangiectasia variant.
4 publications have been identified in PubMed for ataxia - telangiectasia variant. Research spans Case Report / Case Series (50%), Basic Science / Preclinical (25%), and Epidemiology / Natural History (25%).
Jenni R (2026). [PMID: 41715124](https://pubmed.ncbi.nlm.nih.gov/41715124/). *J Transl Med*. [Basic Science / Preclinical]
Milanovic B (2025). [PMID: 40564629](https://pubmed.ncbi.nlm.nih.gov/40564629/). *Children (Basel)*. [Case Report / Case Series]
Ammous-Boukhris N (2024). [PMID: 38882696](https://pubmed.ncbi.nlm.nih.gov/38882696/). *Front Neurol*. [Case Report / Case Series]
Elitzur S (2024). [PMID: 38917355](https://pubmed.ncbi.nlm.nih.gov/38917355/). *Blood*. [Epidemiology / Natural History]
Data assembled from 3 of 12 sources · Last updated Nov 2, 2026, 8:19 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
AI-curated news mentioning ataxia - telangiectasia variant
Updated Oct 20, 2026
A systematic review protocol has been established to enhance the diagnosis of genetic ataxias in adulthood. This initiative aims to consolidate existing knowledge and improve diagnostic accuracy for these rare conditions.
Recent research highlights the potential of drug repurposing strategies in treating hereditary ataxia. This approach could accelerate access to effective therapies for patients with this rare neurological disorder.
A recent publication discusses ataxias, highlighting their diagnosis, genetic underpinnings, and treatment options. This research contributes to the understanding of rare diseases and may inform future therapeutic strategies.
Rare Disease Day 2026 highlights the ongoing struggles of families facing undiagnosed conditions, including hydrocephalus and Dandy-Walker syndrome. The event emphasizes the need for awareness and support for those dealing with complex health challenges.