ArticleJournal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG2026
Implementing PEN-FAST for penicillin allergy delabeling in a high-prevalence population.
Article in Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Article
- Performance of PEN-FAST and CEPH-FAST for Cephalosporin Allergy Delabeling.Clinical and translational allergy · 2026Article
- Implementing PEN-FAST for penicillin allergy delabeling in a high-prevalence population.Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG · 2026Article
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5 authors.
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Abstract
BACKGROUND AND
objectivesSelf-reported penicillin allergies lead to the use of broad-spectrum antibiotics, increase drug resistance, and constitute an economic burden. The PEN-FAST score aims to identify low-risk patients for direct drug provocation tests (DPT) without prior skin testing with a reported negative predictive value (NPV) of over 95%. PATIENTS AND
methodsIn this single-center study (Department of Dermatology, University Hospital Heidelberg, Germany), the PEN-FAST score was evaluated for patients carrying a penicillin allergy label between 2004 and 2024. Skin testing, allergen-specific IgE, and consecutive DPT were performed.
resultsA total of 189 patients were analyzed. In a retrospective cohort, 106 of 149 patients showed negative skin tests and received DPT, leading to the delabeling of 99 patients (66.4%). PEN-FAST identified 55 of 149 (36.9%) as low-risk, of which three low-risk patients were misclassified. In a prospective PEN-FAST low-risk cohort, one of 40 patients showed a mild reaction after DPT. Overall, NPVs of both PEN-FAST and formal allergy testing were 95.8%.
conclusionsOur results advocate for direct DPT in patients carrying a penicillin allergy label classified as low-risk by PEN-FAST. PEN-FAST demonstrated high NPV, safety, and feasibility in a cohort with a high prevalence of true allergies.
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