DeCure's autonomous Neuro AI scientist is researching a drug-repurposing hypothesis for spinocerebellar ataxia type 13 — screening already-approved drugs against its 2-gene Open Targets disease module to publish open-access research. Research is fast; the path to publication is funded in milestone stages.
Disease moduleSpinocerebellar ataxia type 13 maps to a 2-gene Open Targets module — the target space DeCure's AI scientist screens approved drugs against.
DeCure.ai methodSignature reversal (LINCS) plus network proximity (STRING) rank already-approved drugs likely to perturb this module — the same engine that produces DeCure.ai's repurposing hypotheses.
Repurposing thesisScreening approved medicines against this disease module, then publishing the evidence for the strongest candidate. Known pharmacology and human exposure data make the first question sharper — they do not establish safety or efficacy in a new indication.
Research record
01
ResearchComing soon
Candidate research + dossier — target rationale, drug-repurposing thesis and evidence pack.proof: Published dossier + on-chain hash
02
ValidationComing soon
In-vitro biological validation at a contract research org (CRO).proof: CRO contract + in-vitro report
03
Peer review & paperComing soon
Peer-reviewed paper published open-access (preprint + journal).proof: DOI + open-access link + on-chain hash
Current lead
No approved-drug candidate for spinocerebellar ataxia type 13 is corroborated in the literature DeepSearch retrieved. Some conditions are managed with non-pharmacological care — a device, surgery or physical therapy — rather than a medicine; that may be the case here, or the literature we found may simply be too sparse yet to support a drug-repurposing angle.
Molecular view
collagen type VI alpha 3 chain (COL6A3) — COL6A3 is one of the genes genetically linked to this disease in Open Targets — shown as context, not as a drug target we're pursuing: no approved-drug candidate for this disease is yet corroborated in the literature we found.
Loading structure…
helix sheet apo structuredrag to rotate · scroll to zoom
RCSB Protein Data Bank · entry 9GTU · 3.14 Å · ligand none (apo structure). Experimental structure, not a prediction.
What the evidence adds up to
Spinocerebellar ataxia type 13 is not mentioned in any of the provided abstracts. The abstracts discuss spinocerebellar ataxias generally, and types 1, 2, 3, and 6 specifically, but no data on type 13 appear. The 2011 review notes that causative mutations for more than 30 spinocerebellar ataxias have been identified, but gives no further detail on type 13. No drug, biomarker, or clinical trial results for spinocerebellar ataxia type 13 are reported in these papers.
Across the broader group of spinocerebellar ataxias, the 2003 review states there are no FDA-approved drugs and that only 18 controlled trials had been conducted in the preceding 25 years, all focused on neurotransmitter mechanisms. The 2025 IDEA study of 53 patients with early SCA1, 2, 3, and 6 found that few measures showed statistically significant change at 12 months; at 24 months, the FARS-ADL and PROM-Ataxia scores captured change, but the mean baseline SARA score was 9.3, and the authors note more work is needed to identify outcomes that reliably capture change earlier. The 2016 mouse study of SCA6 showed that AAV9-mediated delivery of miR-3191-5p protected mice from ataxia and Purkinje cell degeneration caused by expression of the mutant α1ACT protein, but this is a preclinical model, not human data.
The 2023 review of neuropsychiatric symptoms in SCA and Friedreich ataxia argues that depression, anxiety, apathy, agitation, and psychosis have considerable impact on quality of life, but states that further research is mandated to improve detection and treatment options. The 2013 review of physical therapy for SCA found 13 studies reporting improvement of symptoms, but notes methodological limitations and the need for greater rigor. The 2023 stem cell therapy review warns that stem cells may not be the answer for all such diseases and that indications, ethical considerations, and potential side effects must be known. The 2025 treatment review states that these diseases are incurable, though some medications and physical therapy can alleviate symptoms, and expresses hope for future gene therapy.
What is still missing for spinocerebellar ataxia type 13 specifically: any clinical trial data, any patient-reported or clinician-reported outcome measures validated for this subtype, any biomarker studies, any animal models, and any drug repurposing evidence. The broader field lacks FDA-approved drugs, reliable early-change outcome measures, and rigorous controlled trials for physical therapy.
Evidence
Retrieved by DeepSearch across 234,678,978 indexed works and resolved on OpenAlex — ranked by citations, including the results that did not work.
Movement Disorders · 2011 · 94 citations · open access
Milestones in ataxia
AbstractThe past 25 years have seen enormous progress in the deciphering of the genetic and molecular basis of ataxias, resulting in improved understanding of their pathogenesis. The most significant milestones during this period were the cloning of the genes associated with the common spinocerebellar ataxias, ataxia telangiectasia, and Friedreich ataxia. To date, the causative mutations of more than 30 spinocerebellar ataxias and 20 recessive ataxias have been identified. In addition, there are numerous acquired ataxias with defined molecular causes, so that the entire number of distinct ataxia disorders exceeds 50 and possibly approaches 100. Despite this enormous heterogeneity, a few recurrent pathophysiological themes stand out. These include protein aggregation, failure of protein homeostasis, perturbations in ion channel function, defects in DNA repair, and mitochondrial dysfunction. The clinical phenotypes of the most common ataxia disorders have been firmly established, and their natural history is being studied in ongoing large observational trials. Effective therapies for ataxias are still lacking. However, novel drug targets are under investigation, and it is expected that there will be an increasing number of therapeutic trials in ataxia.
Science Translational Medicine · 2016 · 74 citations · open access
An miRNA-mediated therapy for SCA6 blocks IRES-driven translation of the <i>CACNA1A</i> second cistron
AbstractSpinocerebellar ataxia type 6 (SCA6) is a dominantly inherited neurodegenerative disease characterized by slowly progressive ataxia and Purkinje cell degeneration. SCA6 is caused by a polyglutamine repeat expansion within a second CACNA1A gene product, α1ACT. α1ACT expression is under the control of an internal ribosomal entry site (IRES) present within the CACNA1A coding region. Whereas SCA6 allele knock-in mice show indistinguishable phenotypes from wild-type littermates, expression of SCA6-associated α1ACT (α1ACTSCA6) driven by a Purkinje cell-specific promoter in mice produces slowly progressive ataxia and cerebellar atrophy. We developed an early-onset SCA6 mouse model using an adeno-associated virus (AAV)-based gene delivery system to ectopically express CACNA1A IRES-driven α1ACTSCA6 to test the potential of CACNA1A IRES-targeting therapies. Mice expressing AAV9-mediated CACNA1A IRES-driven α1ACTSCA6 exhibited early-onset ataxia, motor deficits, and Purkinje cell degeneration. We identified miR-3191-5p as a microRNA (miRNA) that targeted CACNA1A IRES and preferentially inhibited the CACNA1A IRES-driven translation of α1ACT in an Argonaute 4 (Ago4)-dependent manner. We found that eukaryotic initiation factors (eIFs), eIF4AII and eIF4GII, interacted with the CACNA1A IRES to enhance α1ACT translation. Ago4-bound miR-3191-5p blocked the interaction of eIF4AII and eIF4GII with the CACNA1A IRES, attenuating IRES-driven α1ACT translation. Furthermore, AAV9-mediated delivery of miR-3191-5p protected mice from the ataxia, motor deficits, and Purkinje cell degeneration caused by CACNA1A IRES-driven α1ACTSCA6 We have established proof of principle that viral delivery of an miRNA can rescue a disease phenotype through modulation of cellular IRES activity in a mouse model.
Neuropsychiatric symptoms in spinocerebellar ataxias and Friedreich ataxia
AbstractApart from its role in motor coordination, the importance of the cerebellum in cognitive and affective processes has been recognized in the past few decades. Spinocerebellar ataxias (SCA) and Friedreich ataxia (FRDA) are rare neurodegenerative diseases of the cerebellum presenting mainly with a progressive loss of gait and limb coordination, dysarthria, and other motor disturbances, but also a range of cognitive and neuropsychiatric symptoms. This narrative review summarizes the current knowledge on neuropsychiatric impairment in SCA and FRDA. We discuss the prevalence, clinical features and treatment approaches in the most commonly reported domains of depression, anxiety, apathy, agitation and impulse dyscontrol, and psychosis. Since these symptoms have a considerable impact on patients' quality of life, we argue that further research is mandated to improve the detection and treatment options of neuropsychiatric co-morbidities in ataxia patients.
Movement Disorders Clinical Practice · 2025 · 4 citations · open access
Longitudinal Changes in Patient‐ and Clinical‐Reported Outcomes in Early Spinocerebellar Ataxia Types 1, 2, 3, and 6 from the <scp>IDEA</scp> Study
AbstractBACKGROUND: Clinical outcomes assessments (COAs) in spinocerebellar ataxia (SCA) need to be standardized, ataxia-specific, sensitive to change, clinically relevant, and meaningful to patients. OBJECTIVES: To evaluate the longitudinal 1- and 2-year performances of different patient reported outcomes, including the Patient Reported Outcome Measure of Ataxia (PROM-Ataxia), and clinician reported outcomes, including FARS and SARA, in those with early manifest symptoms of SCA 1, 2, 3, and 6. METHODS: We studied 53 patients with early stage SCA1-3 and SCA6 from The Instrumented Data Exchange for Ataxia Study and 24 age-matched healthy controls. Participants were seen every 6 months for 2 years. Mixed models were used to estimate change over 12- and 24-months of follow-up. Changes on the FARS-FS and PGI-C were used as anchors to estimate meaningful changes. RESULTS: Among persons with SCA, mean age was 48.7 years and mean SARA score was 9.3. Few measures showed statistically significant changes at 12 months. At 24-months, the FARS-ADL, PROM-Ataxia total, PROM-Ataxia physical, and PROM-Ataxia ADL scores showed the strongest associations of change. CONCLUSIONS: Patient reported or derived outcome measures, such as FARS-ADL and ADL sub domain of the PROM-Ataxia, can capture longitudinal change in patients' symptom experience over a 2-year period and its impact on daily activities, even in those with early disease. More work is needed to identify outcomes that reliably capture change earlier.
Expert Opinion on Pharmacotherapy · 2003 · 4 citations
Spinocerebellar degeneration
AbstractThe spinocerebellar degenerations/ataxias (SCAs) are a diverse group of rare, slowly progressive, neurological diseases, often inherited but of incompletely understood pathophysiology, which affect the cerebellum and its related pathways. They have few animal models and share no reliable biomarkers. They have, as yet, no universally validated rating scale for use in clinical trials. In the past 25 years, there have been, at most, 18 controlled (Class 1) trials for ataxia, which have focused on neurotransmitter mechanisms. There is currently only one National Institute of Neurological Disorders and Stroke-sponsored drug trial for ataxia (Phase I study of idebenone in Friedreich's ataxia). There are, as yet, no FDA-approved drugs for SCA. Current treatment practices encompass rehabilitation interventions and off-label use of symptomatic medications [1,2].
Revista Neurociências · 2013 · 3 citations · open access
Atendimento Fisioterapêutico para Indivíduos com Ataxia Espinocerebelar: Uma Revisão da Literatura
AbstractThe spinocerebellar ataxia (SCA) is a disorder characterized by deficits in the execution of coordinated movements with progressive postural sway associated with difficulty in maintaining balance and various other motor disorders. The gait may be ataxic, with broadening the base of support, instability, irregular steps and slow, lateropulsion and trembling in range of motion, so that physical therapy is an important alternative for the improvement of the disorders of this pathology. Objective. Make, based on scientific literature, a review of physical therapy strategies in the treatment of spinocerebellar ataxia. Method. The study researches the databases Medline and SciELO from 2001 to 2011, considering the following keywords: ataxia espinocerebelar, Fisioterapia, tratamento, reabilitação and its correlates in English. Results. We found 33 studies that had as its main theme ataxia, 20 articles were excluded because they did not report the physical therapy approach for this type of pathology. After review, 13 references were used. Conclusions. After this study, the importance of physical therapy in the treatment of patients with SCA becomes obvious, according to the benefits promoted, as all studies found an improvement of symptoms of this pathology. Methodological limitations observed suggest the need for greater rigor in future research.
Annals of Movement Disorders · 2023 · 0 citations · open access
Stem cell therapy for spinocerebellar ataxias
AbstractStem cells have proved to be the “wonder treatment” for various genetic diseases and holds great potential for the treatment of numerous, but presently incurable maladies. However, stem cells may not be the answer for all such diseases. With the rampant growth of clinics offering stem cell therapy for almost every incurable disease, it is prudent that the indications, ethical considerations, and potential side effects of this treatment are known to the physicians and patients. In this article, we have summarized the available evidence on stem cell therapy in spinocerebellar ataxias.
Yakut Medical Journal · 2025 · 0 citations · open access
Approaches to the treatment of autosomal-dominant spinocerebellar ataxias
AbstractThe article is devoted to the prospects for the treatment of neurodegenerative diseases with dynamic mutations based on published studies of the search for approaches to the treatment of spinocerebellar ataxia. Although these diseases are incurable, research results show that certain medications and physical therapy can alleviate the symptoms of cerebellar ataxia. Due to the progress made in the study of spinocerebellar ataxia in recent years, there are high hopes that it will be possible to develop gene therapy methods that will slow down the progression of the disease or even stop its development.
Disease module: DeepOracle (Open Targets). Structures: RDKit from PubChem SMILES. Literature: retrieved by DeepSearch across 234,678,978 indexed works (targeted per-candidate search), resolved on OpenAlex.
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