Evidence map›Paper›PMID 34064483›Full record

ArticleVaccines2021

Post-Marketing Active Surveillance of Adverse Reactions Following Influenza Cell-Based Quadrivalent Vaccine: An Italian Prospective Observational Study.

Pasquale Stefanizzi, Sara De Nitto, Giuseppe Spinelli, Sabrina Lattanzio, Paolo Stella, Domenica Ancona, Maria Dell'Aera, Margherita Padovano, Savino Soldano, Silvio Tafuri and 1 more

Open access · goldAbstract read
In one paragraph

Article in Vaccines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

19 citing papers in PubMed, 30 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

11 authors at 2 institutions in 1 country.

Pasquale StefanizziDepartment of Biomedical Science and Human Oncology, Aldo Moro University of Bari, 70124 Bari, Italy.
Sara De NittoDepartment of Biomedical Science and Human Oncology, Aldo Moro University of Bari, 70124 Bari, Italy.
Giuseppe SpinelliDepartment of Biomedical Science and Human Oncology, Aldo Moro University of Bari, 70124 Bari, Italy.
Sabrina LattanzioDepartment of Biomedical Science and Human Oncology, Aldo Moro University of Bari, 70124 Bari, Italy.
Paolo StellaRegional Center for Pharmacovigilance, 52100 Puglia, Italy.
Domenica AnconaRegional Center for Pharmacovigilance, 52100 Puglia, Italy.
Maria Dell'AeraDepartment of Pharmacy, Bari Policlinico General Hospital, 70124 Bari, Italy.
Margherita PadovanoDepartment of Pharmacy, Bari Policlinico General Hospital, 70124 Bari, Italy.
Savino SoldanoHealth Hospital Management, Bari Policlinico General Hospital, 70124 Bari, Italy.
Silvio TafuriDepartment of Biomedical Science and Human Oncology, Aldo Moro University of Bari, 70124 Bari, Italy.ORCID 0000-0003-4194-0210
Francesco Paolo BianchiDepartment of Biomedical Science and Human Oncology, Aldo Moro University of Bari, 70124 Bari, Italy.ORCID 0000-0002-9659-0193
University of Bari Aldo Moro · ITRegione Puglia · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Since the influenza season 2018/19, the Italian Ministry of Health recommended a dose of cell-based quadrivalent vaccine (Flucelvax Tetra) for HCWs (healthcare workers), because this vaccine seemed more efficacious in the prevention of AH3N2 virus. Due to the lack of pre-registration data, the safety profile of this new vaccine must be investigated in post-marketing surveillance. The aim of our study is to evaluate, through a post-marketing active surveillance program developed during the 2019/20 influenza season, any Adverse Events Following Immunization (AEFIs) that happened in the 7 days after immunization with Flucelvax Tetra. The study was carried out in a sample of HCWs of Policlinico General University-Hospital (Apulia, South Italy). AEFIs were classified as 'serious' or 'not serious' according to the WHO (World Health Organization) guidelines; the WHO causality assessment algorithm was applied to classify serious AEFIs. A total of 741 HCWs were enrolled, and 430 AEFIs (reporting rate: 58.0 (95%CI: 54.4-61.6) × 100 enrolled) were recorded. Of these, 429 of 430 (99.8%; reporting rate: 57.8 (95%CI: 54.2-61.5) × 100 enrolled) were classified as not serious and one (0.2%; reporting rate: 0.13 (0.03-0.75) × 100 enrolled) was classified as serious. Local reactions were the adverse reaction reported most frequently (88%); regarding the serious AEFI, causality assessment excluded the causal link with the administration of the vaccine. All the AEFIs resolved without sequelae. Flucelvax Tetra showed a profile of high safety. Due to their characteristics of greater sensitivity than passive surveillance, active surveillance programs can be useful in defining the safety profiles of a given vaccine/drug in certain population subgroups.

Indexed as

adverse reactionscausality assessmentinfluenzapost-marketing active surveillancevaccination

Identifiers

PMID34064483
PMCPMC8147936
OpenAlexW3159858569

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.