Evidence map›Paper›PMID 37005891›Full record

Trial reportJournal of neuromuscular diseases2023

Efficacy and Safety of Viltolarsen in Boys With Duchenne Muscular Dystrophy: Results From the Phase 2, Open-Label, 4-Year Extension Study.

Paula R Clemens, Vamshi K Rao, Anne M Connolly, Amy D Harper, Jean K Mah, Craig M McDonald, Edward C Smith, Craig M Zaidman, Tomoyuki Nakagawa, CINRG DNHS Investigators and 1 more

Registry-linked trialOpen access · hybridAbstract readClinical Trial, Phase II
In one paragraph

Trial report in Journal of neuromuscular diseases, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03167255 (A Phase II, Open-Label, Extension Study to Assess the Safety and Efficacy of NS-065/NCNP-01 in Boys With Duchenne Muscular Dystrophy), which is not on this map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
5.1field-weighted citation impact, top 4% of its field
1 · What the graph read from 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.

2 · The registry

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.

NCT03167255 phase2completednot on this map

A Phase II, Open-Label, Extension Study to Assess the Safety and Efficacy of NS-065/NCNP-01 in Boys With Duchenne Muscular Dystrophy (DMD)

TypeinterventionalSponsorNS Pharma, Inc.Ran2017 to 2021Enrolled16ConditionsDuchenne Muscular DystrophyArmsNS-065/NCNP-01
3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 33 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Clinical applications of exon-skipping antisense oligonucleotides in neuromuscular diseases.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
  12. Association ofNeurology. Genetics · 2025
    Article
  13. Review
  14. Article
  15. Article
  16. Gene-based therapies for neuromuscular disorders.Arquivos de neuro-psiquiatria · 2024
    Article
  17. Review
  18. Review
  19. Review
  20. Evolving Therapeutic Options for the Treatment of Duchenne Muscular Dystrophy.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 7 institutions in 2 countries.

Paula R ClemensDepartment of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Vamshi K RaoDivision of Neurology, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA.
Anne M ConnollyDivision of Neurology, Nationwide Children's Hospital, The Ohio State University College of Medicine, Columbus, OH, USA.
Amy D HarperChildren's Hospital of Richmond at Virginia Common wealth University, Richmond, VA, USA.
Jean K MahDepartment of Pediatrics, University of Calgary, Calgary, Alberta, Canada.
Craig M McDonaldDepartment of Physical Medicine and Rehabilitation, Department of Pediatrics, UC Davis Health, University of California, Davis, Sacramento, CA, USA.
Edward C SmithDepartment of Pediatrics, Duke University Medical Center, Durham, NC, USA.
Craig M ZaidmanDepartment of Neurology, Washington University at St Louis, St Louis, MO, USA.
Tomoyuki NakagawaNS Pharma, Inc., Paramus, NJ, USA.
CINRG DNHS Investigators
Eric P HoffmanDepartment of Pharmaceutical Sciences, Binghamton University - State University of New York, Binghamton, NY.
Binghamton University · USLurie Children's Hospital · USUniversity of Calgary · CAWashington University in St. Louis · USDuke Medical Center · USNationwide Children's Hospital · USUniversity of Pittsburgh · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDuchenne muscular dystrophy (DMD) is caused by DMD gene mutations, resulting in absence of functional dystrophin protein. Viltolarsen, an exon 53 skipping therapy, significantly increased dystrophin levels in patients with DMD. Presented here are completed study results of > 4 years of functional outcomes in viltolarsen-treated patients compared to a historical control group (Cooperative International Neuromuscular Research Group Duchenne Natural History Study [CINRG DNHS]).

objectiveTo evaluate the efficacy and safety of viltolarsen for an additional 192 weeks in boys with DMD.

methodsThis phase 2, open-label, 192-week long-term extension (LTE) study (NCT03167255) evaluated the efficacy and safety of viltolarsen in participants aged 4 to < 10 years at baseline with DMD amenable to exon 53 skipping. All 16 participants from the initial 24-week study enrolled into this LTE. Timed function tests were compared to the CINRG DNHS group. All participants received glucocorticoid treatment. The primary efficacy outcome was time to stand from supine (TTSTAND). Secondary efficacy outcomes included additional timed function tests. Safety was continuously assessed.

resultsFor the primary efficacy outcome (TTSTAND), viltolarsen-treated patients showed stabilization of motor function over the first two years and significant slowing of disease progression over the following two years compared with the CINRG DNHS control group which declined. Viltolarsen was well tolerated, with most reported treatment-emergent adverse events being mild or moderate. No participants discontinued drug during the study.

conclusionsBased on the results of this 4-year LTE, viltolarsen can be an important treatment strategy for DMD patients amenable to exon 53 skipping.

Indexed as

Muscular Dystrophy, DuchenneDystrophinGlucocorticoidsHumansMaleOligonucleotidesDystrophinGlucocorticoidsOligonucleotidesviltolarsenclinical efficacyDuchenne muscular dystrophydystrophinexon skippingviltolarsen

Identifiers

PMID37005891
PMCPMC10200237
OpenAlexW4362472971

What OpenQuestion holds

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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.