Rare & Orphan Lab · DeCure for X

DeCure for Intellectual disability, autosomal dominant 16

DeCure's autonomous Rare AI scientist is researching a drug-repurposing hypothesis for intellectual disability, autosomal dominant 16 — 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
All cures
Rare & OrphanDOID:0070046$DeCureRare

The disease map

Disease moduleIntellectual disability, autosomal dominant 16 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 intellectual disability, autosomal dominant 16 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.

What the evidence adds up to

Three unrelated consanguineous families with deleterious homozygous variants in NSUN6 were identified. Two variants are predicted loss-of-function; one maps to the first exon and is predicted to lead to absence of NSUN6 via nonsense-mediated decay, the other maps to the last exon and encodes a protein that does not fold correctly. The missense variant in the third family lost its enzymatic activity and cannot bind the methyl donor S-adenosyl-L-methionine. Affected individuals present with developmental delay, intellectual disability, motor delay, and behavioural anomalies. Homozygous ablation of the NSUN6 ortholog in Drosophila led to locomotion and learning impairment. The authors conclude that biallelic pathogenic variants in NSUN6 cause one form of autosomal recessive intellectual disability.

A 2011 review states that intellectual disability is considered an immutable condition and that current medical practices aim at relieving symptoms, not altering underlying cognitive deficits. It notes that pharmaceutical therapies targeting Fragile X syndrome may become a benchmark for CNS drug discovery seeking cures for neurodevelopmental disorders. A 2025 case report describes a 15-year-old boy with intellectual disability and inappropriate, challenging sexual behaviour who was treated with GNRH analogues. The report says traditional treatments often fail to treat and improve such behaviour, and that alternative treatment options need to be explored.

No drug is mentioned in the 2023 NSUN6 study. The 2011 review discusses Fragile X syndrome therapies in general terms without reporting trial results. The 2025 case report describes a single patient treated with GNRH analogues but gives no quantitative outcomes. What is missing for NSUN6-related intellectual disability is any preclinical drug testing, any patient stratification by variant type, and any funding for translational work. No efficacy data exist for any compound in this specific genetic form of intellectual disability.

Evidence

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

Cochrane Database of Systematic Reviews · 2013 · 39 citations · open access

Pharmacological interventions for self-injurious behaviour in adults with intellectual disabilities

AbstractBACKGROUND: Self-injurious behaviour among people with intellectual disability is relatively common and often persistent. Self-injurious behaviour continues to present a challenge to clinicians. It remains poorly understood and difficult to ameliorate despite advances in neurobiology and psychological therapies. There is a strong need for a better evidence base in prescribing and monitoring of drugs in this population, especially since none of the drugs are actually licensed for self-injurious behaviour. OBJECTIVES: To determine clinical effectiveness of pharmacological interventions in management of self-injurious behaviour in adults with intellectual disability. SEARCH METHODS: We searched the following databases on 19 February 2012: CENTRAL, MEDLINE, EMBASE, PsycINFO, CINAHL, Science Citation Index, Social Science Citation Index, Conference Proceedings Citation Index - Science, Conference Proceedings Citation Index - Social Science and Humanities, ZETOC and WorldCat. We also searched ClinicalTrials.gov, ICTRP and the reference lists of included trials. SELECTION CRITERIA: We included randomised controlled trials that examined drug interventions versus placebo for self-injurious behaviour (SIB) in adults with intellectual disability. DATA COLLECTION AND ANALYSIS: Two review authors independently extracted data and assessed risk of bias for each trial using a data extraction form. We present a narrative summary of the results is presented. We did not consider meta-analysis was appropriate due to differences in study designs, differences between interventions and heterogeneous outcome measures. MAIN RESULTS: We found five double-blind placebo-controlled trials that met our inclusion criteria. These trials assessed effectiveness and safety of drugs in a total of 50 people with intellectual disability demonstrating SIB. Four trials compared the effects of naltrexone versus placebo and one trial compared clomipramine versus placebo.One of the naltrexone versus placebo trials reported that naltrexone had clinically significant effects (≥ 33% reduction) on the daily rates of three of the four participants' most severe form of SIB and modest to substantial reductions in SIB for all participants; however, this study did not report on statistical significance. Another trial reported that naltrexone attenuated SIB in all four participants, with 25 mg and 50 mg doses producing a statistically significant decrease in SIB (P value < 0.05). Another trial (eight people) indicated that naltrexone administration was associated with significantly fewer days of high frequency self injury and significantly more days with low frequency self injury. Naltrexone had different effects depending on the form and location of self injury. Another trial with only 26 participants found that neither single-dose (100 mg) nor long-term (50 and 150 mg) naltrexone treatment had any therapeutic effect on SIB.Comparison of clomipramine versus placebo found no statistically significant benefit for any outcome measure, which included SIB rate and intensity, stereotypy and adverse events. However, it showed clinically significant improvement in the rate and intensity of SIB and stereotypy.There were very few noteworthy adverse events to report in any of the four trials in which these were reported.All trials were at high risk of bias, apart from one trial (Lewis 1996), which was probably at low risk of bias. The short period of follow-up was a significant drawback in the design of all five trials, as it did not allow long-term assessment of behaviour over time.We were unable to examine the efficacy of antidepressants other than clomipramine, antipsychotics, mood stabilisers or beta-blockers as we did not identify any relevant placebo-controlled trials. AUTHORS' CONCLUSIONS: There was weak evidence in included trials that any active drug was more effective than placebo for people with intellectual disability demonstrating SIB. Due to sparse data, an absence of power and statistical significance, and high risk of bias for four of the included trials, we are unable to reach any definite conclusions about the relative benefits of naltrexone or clomipramine compared to placebo.

https://doi.org/10.1002/14651858.cd009084.pub2
Genetics in Medicine · 2023 · 20 citations · open access

Biallelic variants in NSUN6 cause an autosomal recessive neurodevelopmental disorder

AbstractPURPOSE: 5-methylcytosine RNA modifications are driven by NSUN methyltransferases. Although variants in NSUN2 and NSUN3 were associated with neurodevelopmental diseases, the physiological role of NSUN6 modifications on transfer RNAs and messenger RNAs remained elusive. METHODS: We combined exome sequencing of consanguineous families with functional characterization to identify a new neurodevelopmental disorder gene. RESULTS: We identified 3 unrelated consanguineous families with deleterious homozygous variants in NSUN6. Two of these variants are predicted to be loss-of-function. One maps to the first exon and is predicted to lead to the absence of NSUN6 via nonsense-mediated decay, whereas we showed that the other maps to the last exon and encodes a protein that does not fold correctly. Likewise, we demonstrated that the missense variant identified in the third family has lost its enzymatic activity and is unable to bind the methyl donor S-adenosyl-L-methionine. The affected individuals present with developmental delay, intellectual disability, motor delay, and behavioral anomalies. Homozygous ablation of the NSUN6 ortholog in Drosophila led to locomotion and learning impairment. CONCLUSION: Our data provide evidence that biallelic pathogenic variants in NSUN6 cause one form of autosomal recessive intellectual disability, establishing another link between RNA modification and cognition.

https://doi.org/10.1016/j.gim.2023.100900
ACS Chemical Neuroscience · 2011 · 19 citations · open access

Fragile X Syndrome: An Update on Developing Treatment Modalities

AbstractIntellectual disability (ID; mental retardation) is considered an immutable condition. Current medical practices are aimed at relieving symptoms and not at altering the underlying cognitive deficits. Scientific advancements from the past decade have led to the exciting possibility that ID may now be treatable. Moreover, pharmaceutical therapies targeting the most common form of inherited ID, Fragile X syndrome (FXS), may become the new benchmark for central nervous system (CNS) drug discovery: seeking cures for neurodevelopmental disorders.

https://doi.org/10.1021/cn200019z
Psychopharmacology Bulletin · 2025 · 2 citations · open access

Case Report: A Case of Intellectual Disability with Inappropriate and Challenging Sexual Behavior that was Treated with GNRH Analogues

AbstractIntellectual Disability starts within the course of developmental stages and covers both intellectual and adaptive deficiencies in conceptual, social and applied fields. Individuals with intellectual disability experience many difficulties in social life due to challenging and inappropriate sexual behaviour. Suchdifficulties need to be addressed, reduced or treated. Traditional treatments often fail to treat and improve suchbehavior. Alternative treatment options need to be explored with studies conducted in this field. With this paper, we aimed to show and touch on alternative treatments for challenging and inappropriate behaviors of a 15-year old boy with intellectual disability, who was treated with GNRH analogues.

https://doi.org/10.64719/pb.4607

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.