Evidence map›Paper›PMID 32766853›Full record

ArticleBlood advances2020

Eculizumab impairs Neisseria meningitidis serogroup B killing in whole blood despite 4CMenB vaccination of PNH patients.

Jeroen D Langereis, Bryan van den Broek, Sjoerd Franssen, Irma Joosten, Nicole M A Blijlevens, Marien I de Jonge, Saskia Langemeijer

Open access · goldAbstract read
In one paragraph

Article in Blood advances, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 11% 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

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

  1. Pediatric stiff-person syndrome and related disorders: A systematic review.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
    Pooled it
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  15. Role of complement in myasthenia gravis.Frontiers in neurology · 2023
    Review
  16. Review
  17. Eculizumab versus rituximab in generalised myasthenia gravis.Journal of neurology, neurosurgery, and psychiatry · 2022
    Observational
  18. Anti-complement Agents for Autoimmune Neurological Disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2022
    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 2 institutions in 2 countries.

Jeroen D LangereisSection of Pediatric Infectious Diseases, Laboratory of Medical Immunology, Radboud Institute for Molecular Life Sciences.
Bryan van den BroekSection of Pediatric Infectious Diseases, Laboratory of Medical Immunology, Radboud Institute for Molecular Life Sciences.
Sjoerd FranssenDepartment of Hematology, Radboudumc, Nijmegen, The Netherlands.
Irma JoostenLaboratory of Medical Immunology, Department of Laboratory Medicine.
Nicole M A BlijlevensDepartment of Hematology, Radboudumc, Nijmegen, The Netherlands.
Marien I de JongeSection of Pediatric Infectious Diseases, Laboratory of Medical Immunology, Radboud Institute for Molecular Life Sciences.
Saskia LangemeijerDepartment of Hematology, Radboudumc, Nijmegen, The Netherlands.
Radboud University Nijmegen · NLLaboratory of Molecular Genetics · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Complement C5 inhibitor eculizumab has a great impact on the treatment of patients with paroxysmal nocturnal hemoglobinuria (PNH). However, this treatment success has a major drawback: a substantially increased susceptibility for life-threatening Neisseria meningitidis infections. Therefore, N meningitidis vaccination is strongly advised before initiating complement C5-blocking therapy. In this study, we show that the multicomponent N meningitidis serogroup B (4CMenB) vaccination of PNH patients treated with eculizumab results in a significant increase in anti-N meningitidis serogroup B (MenB) plasma immunoglobulin G (IgG) levels. Anti-MenB IgG was able to bind to the bacterial surface and initiate complement activation; however, inhibition of the membrane attack complex formation completely blocked whole blood-mediated killing of MenB. This would suggest that, despite 4CMenB vaccination, PNH patients taking C5 inhibitors are not sufficiently protected against MenB infection, which is in line with the fact that vaccinated PNH patients still experience meningococcal infections.

Indexed as

Hemoglobinuria, ParoxysmalMeningococcal InfectionsMeningococcal VaccinesNeisseria meningitidisAntibodies, Monoclonal, HumanizedHumansSerogroupVaccinationAntibodies, Monoclonal, HumanizedeculizumabMeningococcal Vaccines

Identifiers

PMID32766853
PMCPMC7422103
OpenAlexW3048185747

What OpenQuestion holds

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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.