Evidence map›Paper›PMID 19903213›Full record

Trial reportInfluenza and other respiratory viruses2009

Safety and immunogenicity of an inactivated thimerosal-free influenza vaccine in infants and children.

Terry Nolan, Peter C Richmond, Jodie McVernon, Maryanne V Skeljo, Gunter F Hartel, Jillian Bennet, Russell L Basser

Open access · greenAbstract readClinical Trial, Phase IIIMulticenter Study
In one paragraph

Trial report in Influenza and other respiratory viruses, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 13% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
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  5. Review
  6. Observational
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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 3 institutions in 2 countries.

Terry NolanVaccine and Immunisation Research Group at the Murdoch Children's Research Institute and the Melbourne School of Population Health, University of Melbourne, Victoria 3010, Australia. t.nolan@unimelb.edu.au
Peter C Richmond
Jodie McVernon
Maryanne V Skeljo
Gunter F Hartel
Jillian Bennet
Russell L Basser
CSL (United Kingdom) · GBThe University of Melbourne · AUThe University of Western Australia · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveFew prospective studies of inactivated split virion influenza vaccine have been conducted in infants and children. Our objective was to evaluate the safety, reactogenicity and immunogenicity of a thimerosal-free inactivated influenza vaccine (Fluvax; CSL Limited, Parkville, Australia) in children aged 6 months to <9 years.

methodsA prospective, open-label, phase III clinical trial was conducted in 298 healthy children previously unvaccinated with influenza, commencing in the Southern Hemisphere 2005 autumn. Participants were divided into two groups (Group A: > or =6 months to <3 years; Group B: > or =3 years to <9 years), and received two doses of the 2005 vaccine, and one dose of the 2006 vaccine one year later (Group A: 0.25 ml per dose; Group B: 0.5 ml per dose). Vaccine safety and reactogenicity was evaluated for 30 days after each dose. Immunogenicity was assessed using hemagglutination inhibition and single radial hemolysis assays.

resultsThere were no withdrawals due to adverse events (AEs). The majority of solicited local and systemic AEs were of mild severity. A maximum intensity of severe was reported for injection site pain and fever by only 3.0% and 3.4% of participants, respectively. The vaccine was immunogenic for all antigens, with > or =95% of both younger and older children achieving seroprotection after dose 2.

conclusionsThis thimerosal-free inactivated influenza vaccine had a favorable safety profile and was immunogenic in children aged > or =6 months and <9 years. Primary and booster vaccination produced consistently immunogenic responses including in children under 3 years of age receiving 0.25 ml doses of vaccine.

Indexed as

Antibodies, ViralAustraliaChildChild, PreschoolDrug-Related Side Effects and Adverse ReactionsExcipientsFemaleFeverHemagglutination Inhibition TestsHumansImmunization, SecondaryInfantInfluenza, HumanInfluenza VaccinesMalePainAntibodies, ViralExcipientsInfluenza VaccinesThimerosalVaccines, Inactivated

Identifiers

PMID19903213
PMCPMC4941394
OpenAlexW2166946114

What OpenQuestion holds

Textmetadata
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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.