Trial reportMuscle & nerve2021
Safety, tolerability, and pharmacokinetics of casimersen in patients with Duchenne muscular dystrophy amenable to exon 45 skipping: A randomized, double-blind, placebo-controlled, dose-titration trial.
Trial report in Muscle & nerve, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 107 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
107 citing papers in PubMed, 1 synthesis or guideline pooled it, 139 citations in OpenAlex.
- Pooled it
- Advancements from the EVOLVE study for assessing real-world experience with eteplirsen, golodirsen and casimersen for the treatment of DMD.Journal of comparative effectiveness research · 2026Trial
- Phase 1/2 trial of brogidirsen: Dual-targeting antisense oligonucleotides for exon 44 skipping in Duchenne muscular dystrophy.Cell reports. Medicine · 2025Trial
- Increase in Full-Length Dystrophin by Exon Skipping in Duchenne Muscular Dystrophy Patients with Single Exon Duplications: An Open-label Study.Journal of neuromuscular diseases · 2024Trial
- Dual-energy X-ray absorptiometry measures of lean body mass as a biomarker for progression in boys with Duchenne muscular dystrophy.Scientific reports · 2022Trial
- Long-Term Safety and Efficacy Data of Golodirsen in Ambulatory Patients with Duchenne Muscular Dystrophy Amenable to Exon 53 Skipping: A First-in-human, Multicenter, Two-Part, Open-Label, Phase 1/2 Trial.Nucleic acid therapeutics · 2022Trial
- Trial
- FDA-approved antisense oligonucleotide therapies for duchenne muscular dystrophy: current status and future outlook.RNA biology · 2026Review
- Mutational Spectrum of DMD Gene Variants and Cascade Screening Outcomes in the Central-Eastern Black Sea Region of Türkiye: A Single-Centre Retrospective Study.Molecular biology reports · 2026Article
- Meta-analysis of adverse events in clinical studies with antisense oligonucleotide therapies.Molecular therapy. Nucleic acids · 2026Review
- A Real-World Target Trial Emulation of Eteplirsen, Casimersen, and Golodirsen to Evaluate Survival Among Patients with Duchenne Muscular Dystrophy.Advances in therapy · 2026Article
- A female manifesting carrier of DMD with exon 45 deletion: a case report.Translational pediatrics · 2026Article
- Skeletal-muscle-targeted non-viral delivery of full-length DMD mRNA for Duchenne muscular dystrophy.Nature biomedical engineering · 2026Article
- MDBiomarkers: A queryable biomarkers database integrating multiple serum and tissue datasets for Duchenne muscular dystrophy.Journal of neuromuscular diseases · 2026Article
- Analysis of adverse event reporting with casimersen: a pharmacovigilance study based on the United States food and drug administration adverse event reporting system database.International journal of clinical pharmacy · 2026Article
- RNA Therapeutics Targeting Skeletal Muscle: Emerging Antisense and Gene-Modifying Strategies.Biomolecules · 2026Review
- Enhanced splicing modulation by NMA-modified antisense oligonucleotides.Nucleic acids research · 2026Article
- Gene Editing Strategies for Duchenne Muscular Dystrophy: From Molecular Mechanisms to Clinical Translation.Cells · 2026Review
- Current and Emerging Therapeutic Strategies for the Treatment of Duchenne Muscular Dystrophy.Genes · 2026Review
- Myopathies in clinical care: a focus on treatable causes.Journal of neural transmission (Vienna, Austria : 1996) · 2026Review
47 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
INTRODUCTION/
aimsDuchenne muscular dystrophy (DMD) is caused by mutations in the DMD gene resulting in the absence of dystrophin. Casimersen is a phosphorodiamidate morpholino oligomer designed to bypass frameshift DMD mutations and produce internally truncated, yet functional, dystrophin protein in patients amenable to exon 45 skipping. Our primary study objective was to evaluate safety and tolerability of casimersen; the secondary objective was to characterize the plasma pharmacokinetics.
methodsThis multicenter, phase 1/2 trial enrolled 12 participants (aged 7-21 years, who had limited ambulation or were nonambulatory) and comprised a 12-week, double-blind dose titration, then an open-label extension for up to 132 weeks. During dose titration, participants were randomized 2:1 to weekly casimersen infusions at escalating doses of 4, 10, 20, and 30 mg/kg (≥2 weeks per dose), or placebo.
resultsParticipants received casimersen for a mean 139.6 weeks. Treatment-emergent adverse events (TEAEs) occurred in all casimersen- and placebo-treated participants and were mostly mild (over 91.4%) and unrelated to casimersen or its dose. There were no deaths, dose reductions, abnormalities in laboratory parameters or vital signs, or casimersen-related serious AEs. Casimersen plasma concentration increased with dose and declined similarly for all dose levels over 24 hours postinfusion. All pharmacokinetic parameters were similar at weeks 7 and 60. DISCUSSION: Casimersen was well tolerated in participants with DMD amenable to exon 45 skipping. Most TEAEs were mild, nonserious, and unrelated to casimersen. Plasma exposure was dose proportional with no suggestion of plasma accumulation. These results support further studies of casimersen in this population.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.