priors.science/reviews/antisense-oligonucleotide-gene-silencing-in-amyotrophic-lateral-sclerosis-with-sod1-mutation

Antisense Oligonucleotide Gene Silencing in Amyotrophic Lateral Sclerosis with SOD1 Mutation

The current evidence on 15 claims, ordered from most established to most contested. Each score is the panel’s evidence certainty — how firmly the literature supports the claim as stated.

15claims tracked
78primary papers reviewed
4 May 2026latest evidence review
Weeklyre-scored against new papers
6 Established · 6 Likely · 3 Uncertain · 0 Doubtful  |  four-reviewer panel · PICO Framework
SignalClaimStandingEvidence certaintyCorpus
StableTofersen RNase-H-mediated SOD1 mRNA degradationMechEstablished93%20
StableTofersen reduces cerebrospinal fluid SOD1 proteinBioEstablished92%20
StableTofersen reduces plasma neurofilament light chainBioEstablished91%20
StableIntrathecal tofersen central nervous system penetrationMechEstablished90%20
StableTofersen causes cerebrospinal fluid pleocytosisSafeEstablished89%19
StableNeurofilament light chain predicts amyotrophic lateral sclerosis progressionBioEstablished88%20
StableTofersen versus placebo at 28 weeks (VALOR trial)EffcLikely78%20
StableNeurofilament light chain identifies imminent amyotrophic lateral sclerosis phenoconversionPresymLikely75%20
StableNeurofilament light chain elevation precedes amyotrophic lateral sclerosis symptom onsetBioLikely74%18
StableTofersen myelitis events are reversibleSafeLikely73%19
StableTofersen slows functional decline (open-label extension)EffcLikely72%20
StableEarly tofersen initiation confers advantageEffcLikely71%20
StableTofersen prolongs survival in SOD1 amyotrophic lateral sclerosisEffcUncertain55%20
StableIntrathecal immunoglobulin synthesis is manageableSafeUncertain52%19
StableTofersen prevents amyotrophic lateral sclerosis onset in SOD1 mutation carriersPresymUncertain44%17
Standing — what the evidence certainty means
Established≥ 85%Strong, consistent evidence. Unlikely to change.
Likely65–84%Well supported, with some gaps or indirect evidence.
Uncertain40–64%Mixed or limited evidence. Genuinely open.
Doubtful15–39%Little support; the weight of evidence leans against it.
Refuted< 15%The evidence contradicts it — confidently false as stated.
Recent signal
strengthenedNew evidence raised the certainty since the last review.
weakenedNew evidence lowered the certainty since the last review.
newA claim added to the review recently.
StableNo recent change to the standing.
Standing, evidence certainty and corpus are always shown. The study behind each move, why it moved, and the sceptic’s challenge are delivered to subscribers.
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