Evidence map›Paper›PMID 23936370›Full record

ArticlePloS one2013

Biomarker report from the phase II lamotrigine trial in secondary progressive MS - neurofilament as a surrogate of disease progression.

Sharmilee Gnanapavan, Donna Grant, Steve Morant, Julian Furby, Tom Hayton, Charlotte E Teunissen, Valerio Leoni, Monica Marta, Robert Brenner, Jacqueline Palace and 3 more

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02104661 (OxCarbazepine as a Neuroprotective Agent in MS), which is not on this map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 pooled it
4.5field-weighted citation impact, top 5% 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.

NCT02104661 phase2completednot on this mapstarted 2014, after this paper: background citation

OxCarbazepine as a Neuroprotective Agent in MS: A Phase 2a Trial

TypeinterventionalSponsorQueen Mary University of LondonRan2014 to 2018Enrolled30ConditionsMultiple SclerosisArmsOxcarbazepine, Placebo
3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 2 syntheses or guidelines pooled it, 60 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Review
  6. Neurofilament heavy chain in secondary progressive multiple sclerosis.Multiple sclerosis (Houndmills, Basingstoke, England) · 2025
    Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Review
  16. ALS Yeast Models-Past Success Stories and New Opportunities.Frontiers in molecular neuroscience · 2018
    Review
  17. Review
  18. Article
  19. The influence of sodium on pathophysiology of multiple sclerosis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2017
    Review
  20. Review
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

13 authors at 5 institutions in 3 countries.

Sharmilee GnanapavanDepartment of Neuroinflammation, UCL Institute of Neurology, London, United Kingdom. s.gnanapavan@ucl.ac.uk
Donna Grant
Steve Morant
Julian Furby
Tom Hayton
Charlotte E Teunissen
Valerio Leoni
Monica Marta
Robert Brenner
Jacqueline Palace
David H Miller
Raj Kapoor
Gavin Giovannoni
University College London · GBQueen Mary University of London · GBAmsterdam UMC Location VUmc · NLFondazione IRCCS Istituto Neurologico Carlo Besta · ITUniversity of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveLamotrigine trial in SPMS was a randomised control trial to assess whether partial blockade of sodium channels has a neuroprotective effect. The current study was an additional study to investigate the value of neurofilament (NfH) and other biomarkers in predicting prognosis and/or response to treatment.

methodsSPMS patients who attended the NHNN or the Royal Free Hospital, UK, eligible for inclusion were invited to participate in the biomarker study. Primary outcome was whether lamotrigine would significantly reduce detectable serum NfH at 0-12, 12-24 and 0-24 months compared to placebo. Other serum/plasma and CSF biomarkers were also explored.

resultsTreatment effect by comparing absolute changes in NfH between the lamotrigine and placebo group showed no difference, however based on serum lamotrigine adherence there was significant decline in NfH (NfH 12-24 months p=0.043, Nfh 0-24 months p=0.023). Serum NfH correlated with disability: walking times, 9-HPT (non-dominant hand), PASAT, z-score, MSIS-29 (psychological) and EDSS and MRI cerebral atrophy and MTR. Other biomarkers explored in this study were not found to be significantly associated, aside from that of plasma osteopontin.

conclusionsThe relations between NfH and clinical scores of disability and MRI measures of atrophy and disease burden support NfH being a potential surrogate endpoint complementing MRI in neuroprotective trials and sample sizes for such trials are presented here. We did not observe a reduction in NfH levels between the Lamotrigine and placebo arms, however, the reduction in serum NfH levels based on lamotrigine adherence points to a possible neuroprotective effect of lamotrigine on axonal degeneration.

Indexed as

Clinical Trials, Phase II as TopicDisease ProgressionAtrophyBiomarkersBrainFemaleHumansLamotrigineMagnetic Resonance ImagingMaleMiddle AgedMultiple SclerosisNeurofilament ProteinsPrognosisSpinal CordTime FactorsBiomarkersLamotrigineNeurofilament ProteinsTriazines

Identifiers

PMID23936370
PMCPMC3731296
OpenAlexW2052994550

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.