Evidence map›Paper›PMID 19175802›Full record

Trial reportImmunology2009

Plasma and memory B-cell kinetics in infants following a primary schedule of CRM 197-conjugated serogroup C meningococcal polysaccharide vaccine.

Dominic F Kelly, Matthew D Snape, Kirsten P Perrett, Elizabeth A Clutterbuck, Susan Lewis, Geraldine Blanchard Rohner, Meryl Jones, Ly-Mee Yu, Andrew J Pollard

Erratum issued Registry-linked trialOpen access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in Immunology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT00310700 (A Phase IV, Single Centre, Open-label Study to Investigate the Kinetics of the B Cell Response to the First and the Third Immunization With Chiron Meningococcal C Conjugate Vaccine Administered to Healthy Infants at 2, 3 and 4 Months of Age), which is not on this map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.8field-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.

NCT00310700 phase4completednot on this map

A Phase IV, Single Centre, Open-label Study to Investigate the Kinetics of the B Cell Response to the First and the Third Immunization With Chiron Meningococcal C Conjugate Vaccine Administered to Healthy Infants at 2, 3 and 4 Months of Age

TypeinterventionalSponsorNovartisRan2005 to 2005Enrolled75ConditionsPrevention of Meningococcal InfectionArmsMeningococcal C conjugate vaccine
3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 37 citations in OpenAlex.

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  2. Differential B-cell memory around the 11-month booster in children vaccinated with a 10- or 13-valent pneumococcal conjugate vaccine.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2015
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4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Dominic F KellyOxford Vaccine Group, Department of Paediatrics, Oxford University, Oxford, UK. andrew.pollard@paediatrics.ox.ac.uk
Matthew D Snape
Kirsten P Perrett
Elizabeth A Clutterbuck
Susan Lewis
Geraldine Blanchard Rohner
Meryl Jones
Ly-Mee Yu
Andrew J Pollard
University of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The induction of persistent protective levels of pathogen-specific antibody is an important goal of immunization against childhood infections. However, antibody persistence is poor after immunization in infancy versus later in life. Serogroup C meningococci (MenC) are an important cause of bacteraemia and meningitis in children. The use of protein-polysaccharide conjugate vaccines against MenC has been associated with a significant decline in the incidence of invasive disease. However, vaccine effectiveness is negligible by more than 1 year after a three-dose priming series in infancy and corresponds to a rapid decline in antibody following an initial immune response. The cellular mechanisms underlying the generation of persistent antibody in this age group are unclear. An essential prelude to larger studies of peripheral blood B cells is an understanding of B-cell kinetics following immunization. We measured MenC- and diphtheria-specific plasma and memory B-cell kinetics in infants receiving a CRM(197) (cross-reactive material; mutant diphtheria toxoid)-conjugated MenC vaccine at 2, 3 and 4 months of age. Plasma cell responses were more delayed after the first dose when compared with the rapid appearance of plasma cells after the third dose. Memory B cells were detectable at all time-points following the third dose as opposed to the low frequency seen following a first dose. This study provides data on B-cell kinetics following a primary schedule of immunization in young infants upon which to base further studies of the underlying cellular mechanism of humoral immunity.

Indexed as

Bacterial ProteinsB-LymphocytesFemaleFollow-Up StudiesHumansImmunity, CellularImmunization ScheduleImmunologic MemoryInfantMaleMeningococcal VaccinesVaccines, ConjugateBacterial ProteinsCRM197 (non-toxic variant of diphtheria toxin)Meningococcal Vaccinesserogroup C meningococcal conjugate vaccineVaccines, Conjugate

Identifiers

PMID19175802
PMCPMC2678189
OpenAlexW1592061050

What OpenQuestion holds

Textmetadata
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.