Evidence map›Paper›PMID 32311390›Full record

ArticleThe Journal of allergy and clinical immunology2020

Biomarkers of severity and threshold of allergic reactions during oral peanut challenges.

Alexandra F Santos, George Du Toit, Colin O'Rourke, Natalia Becares, Natália Couto-Francisco, Suzana Radulovic, Ekaterina Khaleva, Monica Basting, Kristina M Harris, David Larson and 5 more

Registry-linked trialOpen access · hybridAbstract read
In one paragraph

Article in The Journal of allergy and clinical immunology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06554691 (Exploring the Immunological Basis in the Evolution of Tree Nut and Peanut Allergy During Treatment Care for Understanding Markers and Treatment Targets), which is not on this map. Cited by 76 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 4 pooled it
14.0field-weighted citation impact, top 1% 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.

NCT06554691 active not recruitingnot on this mapstarted 2023, after this paper: background citation

Exploring the Immunological Basis in the Evolution of Tree Nut and Peanut Allergy During Treatment Care for Understanding Markers and Treatment Targets

Typeobservational_patient_registrySponsorLuxembourg Institute of HealthRan2023 to 2026Enrolled90ConditionsFood Allergy, Food Allergy in Children, Food Allergy Peanut, Tree Nut Allergies
3 · Its place in the literature

Who cites it

76 citing papers in PubMed, 4 syntheses or guidelines pooled it, 150 citations in OpenAlex.

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16 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors at 9 institutions in 2 countries.

Alexandra F SantosDepartment of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, London, United Kingdom; Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom; Children's Allergy Service, Evelina London Children's Hospital, Guy's and St Thomas' Hospital, London, United Kingdom; Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom. Electronic address: alexandra.santos@kcl.ac.uk.
George Du ToitDepartment of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, London, United Kingdom; Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom; Children's Allergy Service, Evelina London Children's Hospital, Guy's and St Thomas' Hospital, London, United Kingdom.
Colin O'RourkeImmune Tolerance Network, Benaroya Research Institute, Seattle, Wash.
Natalia BecaresDepartment of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, London, United Kingdom; Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom; Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom.
Natália Couto-FranciscoDepartment of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, London, United Kingdom; Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom; Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom.
Suzana RadulovicDepartment of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, London, United Kingdom; Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom; Children's Allergy Service, Evelina London Children's Hospital, Guy's and St Thomas' Hospital, London, United Kingdom.
Ekaterina KhalevaChildren's Allergy Service, Evelina London Children's Hospital, Guy's and St Thomas' Hospital, London, United Kingdom.
Monica BastingDepartment of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, London, United Kingdom; Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom.
Kristina M HarrisImmune Tolerance Network, Bethesda, Md.
David LarsonImmune Tolerance Network, Bethesda, Md.
Peter SayreDivision of Hematology-Oncology, Department of Medicine, University of California, San Francisco, Calif.
Marshall PlautNational Institute of Allergy and Infectious Diseases, Bethesda, Md.
Graham RobertsDavid Hide Asthma and Allergy Research Centre, St Mary's Hospital, Isle of Wight, Southampton, United Kingdom; National Institute for Health Research Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and Clinical and Experimental Sciences Academic Unit, University of Southampton Faculty of Medicine, Southampton, United Kingdom.
Henry T BahnsonImmune Tolerance Network, Benaroya Research Institute, Seattle, Wash.
Gideon LackDepartment of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, London, United Kingdom; Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom; Children's Allergy Service, Evelina London Children's Hospital, Guy's and St Thomas' Hospital, London, United Kingdom; Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom. Electronic address: gideon.lack@kcl.ac.uk.
King's College London · GBImmune Tolerance Network · USEvelina London Children's Healthcare · GBAsthma UK · GBBenaroya Research InstituteNational Institute of Allergy and Infectious Diseases · USSt Thomas' Hospital · GBUniversity of California, San Francisco · USUniversity of Southampton · GB

Funding

Immune Tolerance Network UM1 2023 SupplementUM1AI109565 · NIAID · BENAROYA RESEARCH INST AT VIRGINIA MASON · PI Mark S Anderson, Jane Hoyt Buckner · 2014 to 2026
$451.6M
IMMUNE TOLERANCE NETWORK-266015416-266015416N01AI015416 · NIAID · REGENTS OF THE UNIVERSITY OF C · PI BLUESTONE, JEFFREY A · 2002 to 2006
–
Department of HealthMedical Research Council G0902018Medical Research Council G090218Medical Research Council MR/M008517/1NIAID NIH HHS N01 AI015416NIAID NIH HHS UM1 AI109565
6 · The paper itself

Abstract

backgroundOral food challenge (OFC) is the criterion standard to assess peanut allergy (PA), but it involves a risk of allergic reactions of unpredictable severity.

objectiveOur aim was to identify biomarkers for risk of severe reactions or low dose threshold during OFC to peanut.

methodsWe assessed Learning Early about Peanut Allergy study, Persistance of Oral Tolerance to Peanut study, and Peanut Allergy Sensitization study participants by administering the basophil activation test (BAT) and the skin prick test (SPT) and measuring the levels of peanut-specific IgE, Arachis hypogaea 2-specific IgE, and peanut-specific IgG4, and we analyzed the utility of the different biomarkers in relation to PA status, severity, and threshold dose of allergic reactions to peanut during OFC.

resultsWhen a previously defined optimal cutoff was used, the BAT diagnosed PA with 98% specificity and 75% sensitivity. The BAT identified severe reactions with 97% specificity and 100% sensitivity. The SPT, level of Arachis hypogaea 2-specific IgE, level of peanut-specific IgE, and IgG4/IgE ratio also had 100% sensitivity but slightly lower specificity (92%, 93%, 90%, and 88%, respectively) to predict severity. Participants with lower thresholds of reactivity had higher basophil activation to peanut in vitro. The SPT and the BAT were the best individual predictors of threshold. Multivariate models were superior to individual biomarkers and were used to generate nomograms to calculate the probability of serious adverse events during OFC for individual patients.

conclusionsThe BAT diagnosed PA with high specificity and identified severe reactors and low threshold with high specificity and high sensitivity. The BAT was the best biomarker for severity, surpassed only by the SPT in predicting threshold. Nomograms can help estimate the likelihood of severe reactions and reactions to a low dose of allergen in individual patients with PA.

Indexed as

Administration, OralAllergensAnaphylaxisArachisBasophil Degranulation TestBasophilsBiomarkersChildDisease ProgressionDrug-Related Side Effects and Adverse ReactionsFemaleHumansImmunizationMalePeanut HypersensitivitySensitivity and SpecificityAllergensBiomarkersadverse eventsBasophilbasophil activation testdiagnosisfood allergyLEAP studypeanut allergyseveritythreshold

Identifiers

PMID32311390
PMCPMC7417812
OpenAlexW3017305108

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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.