Rare & Orphan Lab · DeCure for X

DeCure for Leber congenital amaurosis 7

DeCure's autonomous Rare AI scientist is researching a drug-repurposing hypothesis for Leber congenital amaurosis 7 — screening already-approved drugs against its 1-gene Open Targets disease module to publish open-access research. Research is fast; the path to publication is funded in milestone stages.

Disease module1 genesLead labRare & Orphan
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Rare & OrphanDOID:0110333$DeCureRare

The disease map

Disease moduleLeber congenital amaurosis 7 maps to a 1-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 leber congenital amaurosis 7 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

cone-rod homeobox (CRX)CRX 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 cacdrag to rotate · scroll to zoom

RCSB Protein Data Bank · entry 9B8U · 2.9 Å · ligand CACODYLATE ION (CAC). Experimental structure, not a prediction.

What the evidence adds up to

In a 2000 study of 100 consecutive Leber congenital amaurosis patients, mutations were found in only 11% across the three then-known genes: GUCY2D in 6%, RPE65 in 3%, and CRX in 2%. Visual evolution differed by genotype: patients with GUCY2D or CRX mutations remained stable, while those with RPE65 mutations showed progressive visual loss. The authors concluded that molecular diagnosis could inform prognosis and course of treatment.

A 2017 case report describes a girl followed from age 4 to 11 with nyctalopia, myopia, and choroid fundus changes, whose electroretinogram was unmeasurable at all phases and whose diagnosis was confirmed by RPE65 mutation testing. The report notes that RPE65 Leber congenital amaurosis has been researched for gene therapy with good functional outcomes so far, but provides no patient-level data on any treatment.

A 2009 commentary recounts that in 2001 a Nature Genetics paper reported restored vision in three dogs with LCA after gene transfer, which generated intense hope among families. The author describes the response as “wildfire” and notes that the lead researcher received hundreds of inquiries from expectant parents, but the commentary offers no human trial results.

No controlled human trial data for any drug or gene therapy in Leber congenital amaurosis 7 are presented in these abstracts. What remains missing is evidence from randomised trials with measurable endpoints, long-term safety data, and patient stratification by mutation type and disease stage.

Evidence

Retrieved by DeepSearch across 234,678,978 indexed works and resolved on OpenAlex — ranked by citations, including the results that did not work.

Ophthalmic Genetics · 2000 · 111 citations

Mutational analysis and clinical correlation in Leber congenital amaurosis

AbstractUNLABELLED: Leber congenital amaurosis (LCA, MIM 204001) is a clinically and genetically heterogeneous retinal disorder characterized by severe visual loss from birth, nystagmus, poor pupillary reflexes, retinal pigmentary or atrophic changes, and a markedly diminished electroretinogram (ERG). PURPOSE: To examine 100 consecutive patients with LCA in order to assess the relative burden of the three known genes involved in LCA, namely retinal guanylyl cyclase (GUCY2D), retinal pigment epithelium protein ( RPE65), and the cone-rod homeobox (CRX), and to define their clinical correlates. METHODS: Mutational analysis and detailed clinical examinations were performed in patients diagnosed with LCA at the Johns Hopkins Center for Hereditary Eye Diseases and the Montreal Children's Hospital. RESULTS: Mutations were identified in 11% of our patients: GUCY2D mutations accounted for 6%, while RPE65 and CRX gene mutations accounted for 3% and 2%, respectively. The clinical presentation was variable; however, the visual evolution in patients with mutations in GUCY2D and CRX remained stable, while individuals with mutations in the RPE65 gene showed progressive visual loss. CONCLUSIONS: This study suggests that molecular diagnosis of Leber congenital amaurosis could provide important information concerning prognosis and course of treatment.

https://doi.org/10.1076/1381-6810(200009)2131-zft135
Gaceta Médica de México · 2017 · 1 citations · open access

Amaurosis congénita de Leber RPE-65, seguimiento a 7 años

AbstractLeber congenital amaurosis is a retinal dystrophy with several forms of presentation due to its genetic variability. Case of a female girl followed up from 4 to 11 years old is presented, with positive clinical data of nyctalopia, myopia and choroid ocular fundus. Electroretinogram was not measurable in all phases but diagnostic was confirmed by RPE65 mutation genetic study. RPE65 Leber congenital amaurosis is particularly important as it has been researched for a gene therapy treatment with good functional outcomes up to now, awaiting to offer hope and a better quality of life to people with this disease.

https://doi.org/10.24875/gmm.17002945
Cambridge University Press eBooks · 2009 · 0 citations

Great Expectations and Hard Times: expectation management in gene transfer

AbstractIn 2001, a report in Nature Genetics raised the possibility that a rare, hereditary form of blindness, Leber's congenital amaurosis (LCA), might soon have a cure. A team of researchers led by Jean Bennett of the University of Pennsylvania's Scheie Eye Institute had successfully restored vision to three dogs with LCA. According to news stories, the report “electrified” families with the disease; said one mother of an LCA child, “we are bursting at the seams.” Word spread like “wildfire,” according to Bennett, who received hundreds of inquiries from expectant parents.

https://doi.org/10.1017/cbo9780511642364.009

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.

DeCure is a research and publication project, not medical advice and not a treatment. "DeCure for X" describes a research goal, not a claim that a cure exists. Backing a cure is a contribution to fund the research — it is not an investment, and confers no yield, royalty, equity or IP ownership. Papers are published open-access by the DeCure.ai DAO.