Evidence map›Paper›PMID 29995300›Full record

ArticleAdvances in therapy2018

Enhanced Safety Surveillance of Seasonal Quadrivalent Influenza Vaccines in English Primary Care: Interim Analysis.

Simon de Lusignan, Gaël Dos Santos, Rachel Byford, Anne Schuind, Silvia Damaso, Vishvesh Shende, Chris McGee, Ivelina Yonova, Filipa Ferreira

Open access · hybridAbstract read
In one paragraph

Article in Advances in therapy, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

11 citing papers in PubMed, 14 citations in OpenAlex.

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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

9 authors at 3 institutions in 3 countries.

Simon de LusignanDepartment of Clinical and Experimental Medicine, University of Surrey, Surrey, UK. s.lusignan@surrey.ac.uk.ORCID 0000-0002-8553-2641
Gaël Dos SantosGlaxoSmithKline, Wavre, Belgium.
Rachel ByfordDepartment of Clinical and Experimental Medicine, University of Surrey, Surrey, UK.
Anne SchuindVaccine Discovery and Clinical Research and Development, GlaxoSmithKline, Rockville, MD, USA.
Silvia DamasoGlaxoSmithKline, Wavre, Belgium.
Vishvesh ShendeVaccines Clinical Safety and Pharmacovigilance Department, VPN Consultancy Ltd (on behalf of GSK), London, UK.
Chris McGeeDepartment of Clinical and Experimental Medicine, University of Surrey, Surrey, UK.
Ivelina YonovaDepartment of Clinical and Experimental Medicine, University of Surrey, Surrey, UK.
Filipa FerreiraDepartment of Clinical and Experimental Medicine, University of Surrey, Surrey, UK.
University of Surrey · GBGlaxoSmithKline (Belgium) · BEGlaxoSmithKline (United States) · US

Funding

GlaxoSmithKline Biologicals SA EPI FLU-046 VS UK
6 · The paper itself

Abstract

introductionThe European Medicines Agency (EMA) requires vaccine manufacturers to conduct enhanced safety surveillance (ESS) of seasonal influenza vaccines including a near real-time evaluation of collected data. The objective was to identify whether the use of passive surveillance or active surveillance provides different results of reported adverse events of interest (AEIs) by specified age strata and AEI type. We report the weekly incidence rates of AEIs within 7 days following seasonal influenza vaccination using passive and active surveillance.

methodsAEIs were collected within 7 days of vaccination from ten general practices predominantly administering inactivated quadrivalent influenza vaccine (IIV4, Fluarix Tetra, GSK). Vaccinees completed an adverse drug reaction (ADR) card. ADR card and medically attended AEIs data were recorded in practice electronic health records. We report the outcome of the first 5 weeks of safety surveillance (September 12, 2016-October 16, 2016); in an exploratory analysis, rates of AEI for IIV4 are compared to those passively reported through a sentinel network.

resultsPractices vaccinated 13.1% (12,864/98,091) of their registered population; 5.6% (95% CI 5.20-6.00) of them reported AEIs, none serious. The most frequent were respiratory 2.60% (95% CI 2.33-2.88), musculoskeletal 1.82% (95% CI 1.59-2.05) and neurological 1.05% (95% CI 0.88-1.23). AEIs were more frequently reported for adults than for children; 5.91% (95% CI 5.49-6.34) compared to 1.49% (95% CI 0.69-2.29); 47.18% of the adults reported AEI using the ADR card, none were returned for subjects < 18 years old. The frequency of AEIs reporting was higher, 6.88% (95% CI 6.35-7.42) vs. 3.30% (95% CI 2.68-3.96, 100/3028, p < 0.000), through ESS than passive surveillance.

conclusionThe ESS did not reveal any safety signal and we demonstrated the feasibility of conducting ESS following EMA recommendations. The use of a customised ADR card led to a doubling of AEIs reports over passive surveillance in adults.

fundingGlaxoSmithKline Biologicals SA, Wavre, Belgium.

Indexed as

Primary Health CareAdolescentAdultAgedChildChild, PreschoolData CollectionDrug-Related Side Effects and Adverse ReactionsElectronic Health RecordsFemaleHumansInfantInfluenza, HumanInfluenza VaccinesMaleMiddle AgedfluarixInfluenza VaccinesVaccines, InactivatedAdverse eventsAdverse reaction reporting systemsEvaluation studies as a topicGeneral practiceImmunologyInfectious diseasesInfluenzaMedical record systems, computerizedVaccination

Identifiers

PMID29995300
PMCPMC6096981
OpenAlexW2811764283

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.