@article{Bognanni:2026:10.1016/j.waojou.2026.101436,
author = {Bognanni, A and Sousa-Pinto, B and Morais-Almeida, M and Martin, B and Ebisawa, M and Ansotegui, IJ and Wong, G and Chu, AWL and Quartucci, A and Weber, BB and Clare, Mills EN and Chu, DK and Hossny, E and Roberts, G and Gerdts, J and Koplin, J and Bartra, J and Detassis, LA and Cavaglià, E and O'B, Hourihane J and Yepes-Nuñez, JJ and Barnett, J and Monaci, L and Tanno, L and Gowland, MH and Groetch, M and Van, Ravenhorst M and Levin, M and Eigenmann, P and Gupta, R and Schnadt, S and La, Vieille S and Brooke-Taylor, S and Tsabouri, S and Arasi, S and Zuberbier, T and Fierro, V and Turner, PJ and Fiocchi, A},
doi = {10.1016/j.waojou.2026.101436},
journal = {World Allergy Organ J},
title = {World Allergy Organization (WAO) Consensus on the use and practice of precautionary allergen labelling: The international ACT-UP! e-Delphi.},
url = {http://dx.doi.org/10.1016/j.waojou.2026.101436},
volume = {19},
year = {2026}
}

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TY  - JOUR
AB  - BACKGROUND: The Food and Agriculture Organization (FAO) of the United Nations and the World Health Organization (WHO) recently convened an expert consultation to address the increasing but inconsistent use of Precautionary Allergen ("may contain") Labelling (PAL). OBJECTIVES: We conducted a Delphi study to explore the perspectives of clinicians, patient representatives, and other interest-holders on PAL practice. METHODS: We followed previous guidance on Delphi study development and reporting. A narrative review exploring the FAO/WHO Expert Consultation informed the Delphi process. The working group generated 35 items based on the review of FAO/WHO consultation, categorized into 7 domains: (i) Importance of the issue, (ii) Informing use of PAL, (iii) Action level cut-offs, (iv) Communication, (v) Liability considerations, (vi) Free From statements, and (vii) Areas for further research. Items underwent 3 iterative Delphi rounds involving a panel of 35 experts who rated their agreement narratively and on a 5-point Likert scale. Consensus was defined as ≥70% consistency in agreement or disagreement (excluding neutral responses); stability was defined as <10% variation in average scores across rounds. A public consultation was held to collect different viewpoints arising from the consensus activity. RESULTS: The Delphi was concluded after 3 rounds with consensus achieved for 33/35 items. Response rate was 100% across all 3 rounds. The panel strongly agreed that PAL should only be applied when an unintended allergen may be present above a cut-off (action level) and that it should always be based on a formal risk assessment, preferably quantitative, and mandated through legislation. Furthermore, action levels should be based on "reference doses" (amount of total allergenic protein), rather than on a concentration (eg, 10 ppm), and more specifically on population-adjusted eliciting doses ED05 (amount of allergen expected to elicit an objective rea
AU  - Bognanni,A
AU  - Sousa-Pinto,B
AU  - Morais-Almeida,M
AU  - Martin,B
AU  - Ebisawa,M
AU  - Ansotegui,IJ
AU  - Wong,G
AU  - Chu,AWL
AU  - Quartucci,A
AU  - Weber,BB
AU  - Clare,Mills EN
AU  - Chu,DK
AU  - Hossny,E
AU  - Roberts,G
AU  - Gerdts,J
AU  - Koplin,J
AU  - Bartra,J
AU  - Detassis,LA
AU  - Cavaglià,E
AU  - O'B,Hourihane J
AU  - Yepes-Nuñez,JJ
AU  - Barnett,J
AU  - Monaci,L
AU  - Tanno,L
AU  - Gowland,MH
AU  - Groetch,M
AU  - Van,Ravenhorst M
AU  - Levin,M
AU  - Eigenmann,P
AU  - Gupta,R
AU  - Schnadt,S
AU  - La,Vieille S
AU  - Brooke-Taylor,S
AU  - Tsabouri,S
AU  - Arasi,S
AU  - Zuberbier,T
AU  - Fierro,V
AU  - Turner,PJ
AU  - Fiocchi,A
DO  - 10.1016/j.waojou.2026.101436
PY  - 2026///
SN  - 1939-4551
TI  - World Allergy Organization (WAO) Consensus on the use and practice of precautionary allergen labelling: The international ACT-UP! e-Delphi.
T2  - World Allergy Organ J
UR  - http://dx.doi.org/10.1016/j.waojou.2026.101436
UR  - https://www.ncbi.nlm.nih.gov/pubmed/42598065
VL  - 19
ER  - 

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