Evidence map›Paper›PMID 17261612›Full record

Trial reportInfection and immunity2007

Functional antibodies elicited by two heptavalent pneumococcal conjugate vaccines in the Finnish Otitis Media Vaccine Trial.

Nina Ekström, Merja Väkeväinen, Jouko Verho, Terhi Kilpi, Helena Käyhty

Open access · greenAbstract readClinical TrialComparative Study
In one paragraph

Trial report in Infection and immunity, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

23 citing papers in PubMed, 45 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. Trial
  5. Review
  6. Article
  7. Diverse Mechanisms of Protective Anti-Pneumococcal Antibodies.Frontiers in cellular and infection microbiology · 2022
    Review
  8. Determination of avidity of IgG against protein antigens from Streptococcus pneumoniae: assay development and preliminary application in clinical settings.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2018
    Article
  9. Article
  10. Article
  11. Next generation protein based Streptococcus pneumoniae vaccines.Human vaccines & immunotherapeutics · 2016
    Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  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

5 authors at 1 institution in 1 country.

Nina EkströmDept. of Vaccines, National Public Health Institute, Mannerheimintie 166, 00300 Helsinki, Finland. nina.ekstrom@ktl.fi
Merja Väkeväinen
Jouko Verho
Terhi Kilpi
Helena Käyhty
Institute for Molecular Medicine Finland · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the Finnish Otitis Media Vaccine Trial, the now-licensed pneumococcal conjugate vaccine containing polysaccharides conjugated to protein CRM(197) (PncCRM) and the experimental pneumococcal polysaccharide-meningococcal outer membrane protein complex conjugate vaccine (PncOMPC), showed similar efficacy profiles against acute otitis media despite different antibody concentrations in sera. We now report the opsonophagocytic activities (OPA) in these sera. OPA, antibody concentration, and avidity for serotypes 6B, 19F, and 23F were determined in sera of infants who received either pneumococcal conjugate (PCV) or control vaccine at 2, 4, and 6 months of age and either the homologous or pneumococcal polysaccharide vaccine at 12 months of age. OPA varied by vaccine and serotype. The majority of PCV recipients had positive OPA after the fourth dose, while OPA was undetectable in the control group. Coinciding with the efficacy data, the concentration of antibodies required for 50% killing was low for 6B and high for 19F for both PCVs. Contradictory to the efficacy data, PncOMPC induced lower functional capacity to 23F than PncCRM. OPA correlated with antibody concentration, while avidity and functional capacity of antibodies showed no correlation. The OPA data provide valuable additional information for serotype-specific differences in protection and when evaluating serotype-specific immunogenicity and should thus be considered when defining serological correlates of protection.

Indexed as

Antibodies, BacterialAntibody AffinityChild, PreschoolFinlandHeptavalent Pneumococcal Conjugate VaccineHumansInfantMeningococcal VaccinesMicrobial ViabilityOpsonin ProteinsOtitis MediaPhagocytosisPneumococcal InfectionsPneumococcal VaccinesStatistics as TopicStreptococcus pneumoniaeAntibodies, BacterialHeptavalent Pneumococcal Conjugate VaccineMeningococcal VaccinesOpsonin ProteinsPneumococcal Vaccines

Identifiers

PMID17261612
PMCPMC1865725
OpenAlexW2129091558

What OpenQuestion holds

Textmetadata
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.