Evidence map›Paper›PMID 25270680›Full record

Trial reportJournal of neurology2014

Magnetization transfer ratio in the delayed-release dimethyl fumarate DEFINE study.

Douglas L Arnold, Ralf Gold, Ludwig Kappos, Amit Bar-Or, Gavin Giovannoni, Krzysztof Selmaj, Minhua Yang, Ray Zhang, Monica Stephan, Sarah I Sheikh and 1 more

Open access · hybridAbstract readClinical Trial, Phase IIIRandomized Controlled Trial
In one paragraph

Trial report in Journal of neurology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 7% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Review
  5. Review
  6. Review
  7. Review
  8. Current Landscape of NRF2 Biomarkers in Clinical Trials.Antioxidants (Basel, Switzerland) · 2020
    Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Advances in brain imaging in multiple sclerosis.Therapeutic advances in neurological disorders · 2019
    Review
  14. Article
  15. Magnetic Resonance Imaging in Multiple Sclerosis.Cold Spring Harbor perspectives in medicine · 2018
    Review
  16. Review
  17. Review
  18. The Role of Advanced Magnetic Resonance Imaging Techniques in Multiple Sclerosis Clinical Trials.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2017
    Review
  19. Assessing Repair in Multiple Sclerosis: Outcomes for Phase II Clinical Trials.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2017
    Review
  20. Article
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

11 authors at 7 institutions in 6 countries.

Douglas L ArnoldNeuroRx Research, Montreal, QC, Canada, darnold@neurorx.com.
Ralf Gold
Ludwig Kappos
Amit Bar-Or
Gavin Giovannoni
Krzysztof Selmaj
Minhua Yang
Ray Zhang
Monica Stephan
Sarah I Sheikh
Katherine T Dawson
Biogen (United States) · USMcGill University · CAMedical University of Lodz · PLNeuroRx Research (Canada) · CAQueen Mary University of London · GBSt. Josef-Hospital · DEUniversity Hospital of Basel · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We measured changes in brain magnetization transfer ratio (MTR) as a potential indicator of myelin density in brain tissue of patients with relapsing-remitting multiple sclerosis (RRMS) treated with delayed-release dimethyl fumarate (DMF) in the Phase 3 DEFINE study. DEFINE was a randomized, double-blind, placebo-controlled study in which patients with RRMS were randomized 1:1:1 to 2 years of treatment with delayed-release DMF 240 mg twice daily (BID) or three times daily (TID) or placebo. MTR was analyzed in whole brain and normal-appearing brain tissue (NABT) at baseline, week 24, 1 year, and 2 years in a subset of patients. MTR data from 392 patients were analyzed. Mean percentage reduction from baseline to 2 years in median whole brain MTR was -0.386% in the placebo group vs increases of 0.129% (p = 0.0027) and 0.096% (p = 0.0051) in the delayed-release DMF BID and TID groups, respectively. Similarly, mean percentage reduction from baseline in median NABT MTR was -0.392% with placebo vs increases of 0.190% (p = 0.0006) and 0.115% (p = 0.0029) with delayed-release DMF BID and TID, respectively. Post hoc analysis of data from patients with no new or enlarging T2 lesions (n = 147), or who experienced no relapses (n = 238), yielded similar results. In this analysis, increases in MTR in brain tissue most likely reflect increases in myelin density in response to delayed-release DMF. These data in patients with RRMS are consistent with preclinical studies that indicate a potential for cytoprotection and remyelination with delayed-release DMF treatment.

Indexed as

Magnetic Resonance ImagingAdolescentAdultBrainDelayed-Action PreparationsDimethyl FumarateDouble-Blind MethodFemaleFumaratesHumansImmunosuppressive AgentsMaleMiddle AgedMultiple SclerosisMultiple Sclerosis, Relapsing-RemittingPlacebosDelayed-Action PreparationsDimethyl FumarateFumaratesImmunosuppressive AgentsPlacebos

Identifiers

PMID25270680
PMCPMC4242981
OpenAlexW1994080411

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.