Evidence map›Paper›PMID 34477330›Full record

Trial reportAnnals of clinical and translational neurology2021

Safety and efficacy of dimethyl fumarate in ALS: randomised controlled study.

Steve Vucic, Robert D Henderson, Susan Mathers, Merrilee Needham, David Schultz, Matthew C Kiernan, TEALS study group

Open access · goldAbstract readClinical Trial, Phase IIMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Annals of clinical and translational neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
2.7field-weighted citation impact, top 8% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 37 citations in OpenAlex.

  1. The landscape of neurophysiological outcome measures in ALS interventional trials: A systematic review.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2022
    Pooled it
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  13. Inflammasomes in neurodegenerative diseases.Translational neurodegeneration · 2024
    Review
  14. Article
  15. Therapeutic targeting of ALS pathways: Refocusing an incomplete picture.Annals of clinical and translational neurology · 2023
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 6 institutions in 2 countries.

Steve VucicBrain and Nerve Research Centre, Concord Clinical School, Concord Hospital, University of Sydney, Sydney, Australia.ORCID 0000-0002-8323-873X
Robert D HendersonDepartment of Neurology, Royal Brisbane & Women's Hospital, Brisbane, Australia.
Susan MathersDepartment of Neurology, Calvary Health Care Bethlehem, Caulfield South, Australia.
Merrilee NeedhamDepartment of Neurology, Fiona Stanley Hospital, Murdoch University, Murdoch, Australia.
David SchultzFlinders Medical Centre, Bedford Park, Australia.
Matthew C KiernanBrain and Mind Centre, University of Sydney, Sydney, Australia.ORCID 0000-0001-9054-026X
TEALS study group
The University of Sydney · AUCalvary Health Care Bethlehem · AUFlinders Medical Centre · AUMurdoch University · AUOrano (United States) · USRoyal Brisbane and Women's Hospital · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveNeuroinflammation is an important pathogenic mechanism in amyotrophic lateral sclerosis (ALS), with regulatory T cells (Tregs) mediating a slower rate of disease progression. Dimethyl fumarate enhances Treg levels and suppresses pro-inflammatory T cells. The present study assessed the safety and efficacy of dimethyl fumarate in ALS.

methodsPhase-2, double-blind, placebo-controlled randomised clinical trial recruited participants from May 1, 2018 to September 25, 2019, across six Australian sites. Participants were randomised (2:1 ratio) to dimethyl fumarate (480 mg/day) or matching placebo, completing visits at screening, baseline, weeks 12, 24 and 36. The primary efficacy endpoint was a change in Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised (ALSFRS-R) at week 36. Secondary outcome measures included survival, neurophysiological index (NI), respiratory function, urinary neurotrophin-receptor p75 and quality of life.

resultsA total of 107 participants were randomised to dimethyl fumarate (n = 72) or placebo (n = 35). ALSFRS-R score was not significantly different at week 36 (-1.12 [-3.75 to 1.52, p = 0.41]). Dimethyl fumarate was associated with a reduced NI decline week 36 (differences in the least-squares mean: (0.84 [-0.51 to 2.22, p = 0.22]). There were no significant differences in other secondary outcome measures. Safety profiles were comparable between groups.

interpretationDimethyl fumarate, in combination with riluzole, was safe and well-tolerated in ALS. There was no significant improvement in the primary endpoint. The trial provides class I evidence for safety and lack of efficacy of dimethyl fumarate in ALS.

Indexed as

AdultAgedAmyotrophic Lateral SclerosisDimethyl FumarateDouble-Blind MethodFemaleHumansImmunologic FactorsMaleMiddle AgedOutcome Assessment, Health CareDimethyl FumarateImmunologic Factors

Identifiers

PMID34477330
PMCPMC8528453
OpenAlexW3197782901

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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Registered trials

None linked

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.