Evidence map›Paper›PMID 24729444›Full record

ArticleAnnals of neurology2014

Cerebrospinal fluid JC virus antibody index for diagnosis of natalizumab-associated progressive multifocal leukoencephalopathy.

Clemens Warnke, Gloria von Geldern, Philipp Markwerth, Thomas Dehmel, Robert Hoepner, Ralf Gold, Michael Pawlita, Tania Kümpfel, Mathias Mäurer, Martin Stangel and 14 more

Open access · greenAbstract read
In one paragraph

Article in Annals of neurology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
7.9field-weighted citation impact, top 2% 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

44 citing papers in PubMed, 96 citations in OpenAlex.

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  20. Effects of natalizumab therapy on intrathecal antiviral antibody responses in MS.Neurology(R) neuroimmunology & neuroinflammation · 2019
    Observational
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

24 authors at 15 institutions in 4 countries.

Clemens WarnkeDepartment of Neurology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany.
Gloria von Geldern
Philipp Markwerth
Thomas Dehmel
Robert Hoepner
Ralf Gold
Michael Pawlita
Tania Kümpfel
Mathias Mäurer
Martin Stangel
Florian Wegner
Reinhard Hohlfeld
Vera Straeten
Volker Limmroth
Thomas Weber
Derik Hermsen
Christoph Kleinschnitz
Hans-Peter Hartung
Mike P Wattjes
Anders Svenningson
Eugene Major
Tomas Olsson
Bernd C Kieseier
Ortwin Adams
Heinrich Heine University Düsseldorf · DELudwig-Maximilians-Universität München · DEMedizinische Hochschule Hannover · DENational Institute of Neurological Disorders and Stroke · USRuhr University Bochum · DEAmsterdam UMC Location VUmc · NLCaritas-Krankenhaus Bad Mergentheim · DEDüsseldorf University Hospital · DEHeidelberg University · DEJohannes Wesling Klinikum Minden · DEKarolinska Institutet · SELungenklinik Köln-Merheim · DEMarienkrankenhaus Hamburg · DEUmeå University · SEUniversity of Würzburg · DE

Funding

Intramural NIH HHS Z99 NS999999
6 · The paper itself

Abstract

objectiveProgressive multifocal leukoencephalopathy (PML), caused by JC virus (JCV), can occur in patients receiving natalizumab for multiple sclerosis (MS). JCV detection by quantitative polymerase chain reaction (qPCR) in cerebrospinal fluid (CSF), or brain biopsy, is required for probable or definite diagnosis of PML. However, in some patients only low levels of JCV DNA (<100 copies/ml) are present in CSF, making the diagnosis challenging. Our objective was to assess the complementary value of a CSF JCV antibody index (AIJCV ) in the diagnosis of natalizumab-associated PML.

methodsAIJCV was assessed in 37 cases of natalizumab-associated PML and 89 MS-patients treated with natalizumab without PML. Sera and CSF were tested in a capture enzyme-linked immunosorbent assay, using JCV-VP1 fused to glutathione S-transferase as antigen. Albumin levels and total immunoglobulin G concentration were determined by immunonephelometry, and the AIJCV was calculated as published.

resultsTwenty-six of 37 (70%) patients with natalizumab-associated PML exhibited an AIJCV > 1.5, whereas this was seen in none of the controls (p < 0.0001). At time of the first positive qPCR for JCV DNA, 11 of 20 (55%) patients with natalizumab-associated PML had an AIJCV > 1.5. JCV DNA levels of <100 copies/ml were seen in 14 (70%) of these 20 patients, of whom 8 (57%) demonstrated an AIJCV > 1.5.

interpretationDetermination of the AIJCV could be an added tool in the diagnostic workup for PML and should be included in the case definition of natalizumab-associated PML.

Indexed as

AdultAntibodies, Monoclonal, HumanizedAntibodies, ViralBiomarkersDNA, ViralFemaleHumansJC VirusLeukoencephalopathy, Progressive MultifocalMaleMiddle AgedMultiple SclerosisNatalizumabYoung AdultAntibodies, Monoclonal, HumanizedAntibodies, ViralBiomarkersDNA, ViralNatalizumab

Identifiers

PMID24729444
PMCPMC4194179
OpenAlexW2163435011

What OpenQuestion holds

Textmetadata
LicenceTDM
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.