Evidence map›Paper›PMID 34689351›Full record

ArticleAllergy2022

The value of the basophil activation test in the evaluation of patients reporting allergic reactions to the BNT162b2 mRNA COVID-19 vaccine.

Marina Labella, Jose Antonio Céspedes, Inmaculada Doña, Mohamed H Shamji, Ioana Agache, Cristobalina Mayorga, Maria José Torres

Open access · bronzeAbstract read
In one paragraph

Article in Allergy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 4% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
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  12. From Immunogen to COVID-19 vaccines: Prospects for the post-pandemic era.Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2023
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  17. PEG allergy - A COVID-19 pandemic-made problem? A German perspective.The World Allergy Organization journal · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 3 countries.

Marina LabellaAllergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain.ORCID 0000-0001-9618-4067
Jose Antonio CéspedesAllergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain.
Inmaculada DoñaAllergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain.ORCID 0000-0002-5309-4878
Mohamed H ShamjiNational Heart and Lung Institute, Imperial College London, London, UK.ORCID 0000-0003-3425-3463
Ioana AgacheFaculty of Medicine, Transylvania University, Brasov, Romania.ORCID 0000-0001-7994-364X
Cristobalina MayorgaAllergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain.ORCID 0000-0001-8852-8077
Maria José TorresAllergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain.ORCID 0000-0001-5228-471X
Hospital Regional Universitario de Málaga · ESInstituto de Investigación Biomédica de Málaga · ESNIHR Imperial Biomedical Research Centre · GBTransylvania University of Brașov · RO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundmRNA-based COVID-19 vaccines have been reported to induce hypersensitivity reactions (HSR) in a small number of individuals. We aimed to evaluate the real-world incidence of the BNT162b2 mRNA COVID-19 vaccine HSR and to determine the value of the basophil activation test (BAT) in the allergological workup of patients reporting these reactions.

methodsWe prospectively enrolled patients with a clinical history indicative of HSR to the BNT162b2 mRNA COVID-19 vaccine. The allergological workup included skin testing (STs) and BAT with polyethylene glycol (PEG) and the vaccine. In those with negative allergy assessments, the administration of the second dose of the BNT162b2 mRNA COVID-19 vaccine was offered.

resultsSeventeen adults were included. Eleven cases (64.7%) tested negative in the allergological workup and tolerated the re-administration of the second dose of the vaccine and considered non-allergic. Six cases (35.3%) were considered allergic and classified into three groups: 2 subjects displayed positive STs and/or BAT to PEG (Group A), two individuals displayed positive BAT to the vaccine (Group B), and in 2 patients with moderate or severe reactions, the culprit was not identified, tested negative to STs and BAT to both PEG and vaccine (Group C). We further evaluated the value of BAT when the results were positive to the vaccine and negative to PEG by performing BAT in controls groups, finding positive BAT results in 50% of controls, all of them recovered from COVID-19 infection. In contrast, BAT was negative in patients who had not suffered from COVID-19 disease.

conclusionsBAT can be used as a potential diagnostic tool for confirming allergy to PEG excipient but not to the vaccine as a positive result in BAT may indicate a past COVID-19 infection instead of an allergy.

Indexed as

COVID-19Drug HypersensitivityAdultBasophil Degranulation TestBasophilsBNT162 VaccineCOVID-19 VaccinesHumansRNA, MessengerBNT162 VaccineCOVID-19 VaccinesRNA, Messengerallergic reactionsbasophil activation testBNT162b2COVID-19vaccines

Identifiers

PMID34689351
PMCPMC8653141
OpenAlexW3208249819

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.