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A rare condition that affects the nervous system. Signs and symptoms of the condition generally develop between ages 18 months and 8 years, although later onset cases have been reported. Affected people may experience loss of muscle coordination (ataxia), seizures that do not respond to medications, muscle twitches (myoclonus), visual impairment, and developmental regression (loss of previously acquired skills). It occurs predominantly in people of Portuguese, Indian, Pakistani, or Czech ancestry. CLN6-NCL is caused by changes (mutations) in the CLN6 gene and is inherited in an autosomal recessive manner. Treatment options are limited to therapies that can help relieve some of the symptoms.
Features include: Motor deterioration, Abnormal nervous system electrophysiology, Progressive visual loss, and Seizure and 4 more.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 1 | Seizure |
Eyes | 1 | Retinal degeneration |
Arms and legs | 1 | Fingerprint intracellular accumulation of autofluorescent lipopigment storage material |
CLN6 encodes CLN6 transmembrane ER protein (311 aa). Highest expression in Cells EBV-transformed lymphocytes (51.6 TPM) and Cells Cultured fibroblasts (31.6 TPM).
Ceroid lipofuscinosis, neuronal, 6A is associated with mutations in the CLN6 gene on chromosome 15.
CLN6 is classified as a druggable target with score 0.0.
Genetic testing for CLN6 is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for ceroid lipofuscinosis, neuronal, 6A has been reported in the published literature.
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.
39 publications have been identified in PubMed for ceroid lipofuscinosis, neuronal, 6A. Research spans Case Report / Case Series (33%), Basic Science / Preclinical (26%), and Epidemiology / Natural History (18%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 13 | 33% |
Laboratory research | 10 | 26% |
Disease patterns and progression | 7 | 18% |
Testing and diagnosis research | 3 | 8% |
New treatment approaches | 3 | 8% |
Clinical study results | 2 | 5% |
Research summaries | 1 | 3% |
Liu K (2026). [PMID: 41986128](https://pubmed.ncbi.nlm.nih.gov/41986128/). *Zhonghua Yi Xue Za Zhi*. [Case Report / Case Series]
Chaoul V (2026). [PMID: 41827875](https://pubmed.ncbi.nlm.nih.gov/41827875/). *Cells*. [Basic Science / Preclinical]
Oliveira JA (2026). [PMID: 41160491](https://pubmed.ncbi.nlm.nih.gov/41160491/). *J Child Neurol*. [Review / Meta-Analysis]
Tsuchie H (2026). [PMID: 42186472](https://pubmed.ncbi.nlm.nih.gov/42186472/). *Yonago Acta Med*. [Case Report / Case Series]
Chandra S (2026). [PMID: 42146023](https://pubmed.ncbi.nlm.nih.gov/42146023/). *NeuroImmune Pharm Ther*. [Gene Therapy / Novel Therapeutics]
Raman R (2026). [PMID: 41576655](https://pubmed.ncbi.nlm.nih.gov/41576655/). *Mol Genet Metab*. [Gene Therapy / Novel Therapeutics]
Fote GM (2025). [PMID: 40845388](https://pubmed.ncbi.nlm.nih.gov/40845388/). *J Neurosurg Pediatr*. [Clinical Trial Publication]
Corti S (2025). [PMID: 40706588](https://pubmed.ncbi.nlm.nih.gov/40706588/). *Cell Rep Med*. [Gene Therapy / Novel Therapeutics]
Schulz A (2025). [PMID: 40162009](https://pubmed.ncbi.nlm.nih.gov/40162009/). *Front Neurol*. [Epidemiology / Natural History]
Chaoul V (2025). [PMID: 40358187](https://pubmed.ncbi.nlm.nih.gov/40358187/). *Cells*. [Basic Science / Preclinical]
Data assembled from 7 of 12 sources · Last updated Sep 19, 2026, 9:41 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center