Editorial
Chronische Urtikaria – gestern und heute
Bettina Wedi und Alexander Kapp
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Jahrgang 24 p. 445 - 446
Abstract
Allergologie, Jahrgang 24, Nr. 10/2001, S. 445–446
Chronische Urtikaria – gestern und heute
Bettina Wedi und Alexander Kapp
Correspondence to:
Hannover
Original
Guideline on diagnostic procedures for suspected hypersensitivity to beta-lactam antibiotics
Gerda Wurpts, Werner Aberer, Heinrich Dickel, Randolf Brehler, Thilo Jakob, Burkhard Kreft, Vera Mahler, Hans F. Merk, Norbert Mülleneisen, Hagen Ott, Wolfgang Pfützner, Stefani Röseler, Franziska Ruëff, Helmut Sitter, Cord Sunderkötter, Axel Trautmann, Regina Treudler, Bettina Wedi, Margitta Worm, und Knut Brockow
Volume 4 (2020) p. 11 - 43
Abstract
Allergologie select, Vol. 4/2020 (11-43)
Guideline on diagnostic procedures for suspected hypersensitivity to beta-lactam antibiotics
Gerda Wurpts1, Werner Aberer2, Heinrich Dickel3, Randolf Brehler4, Thilo Jakob5, Burkhard Kreft6, Vera Mahler7,8, Hans F. Merk1, Norbert Mülleneisen9, Hagen Ott10, Wolfgang Pfützner11, Stefani Röseler1, Franziska Ruëff12, Helmut Sitter13, Cord Sunderkötter6, Axel Trautmann14, Regina Treudler15, Bettina Wedi16, Margitta Worm17, und Knut Brockow18
1Clinic for Dermatology and Allergology, Aachen Comprehensive Allergy Center (ACAC), Uniklinik RWTH Aachen, Germany 2Department of Dermatology, Graz Medical University, Graz, Austria, 3Department of Dermatology, Venereology and Allergology, St. Josef Hospital, University Hospital of the Ruhr University Bochum, Bochum, 4Department of Dermatology, University Hospital Münster, Münster, 5Department of Dermatology and Allergology, University Hospital Gießen und Marburg, Gießen Site, Gießen, 6Department of Dermatology and Venereology, University, Hospital Halle (Saale), Halle (Saale), 7Paul-Ehrlich Institute, Langen, 8Department of Dermatology, University Hospital Erlangen, Erlangen, 9Asthma and Allergy Centre, Leverkusen, 10Division of Pediatric Dermatology and Allergology, Auf der Bult Children’s Hospital, Hannover, 11Department of Dermatology and Allergology, University Hospital Gießen und Marburg, Marburg Site, Marburg, 12Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, 13Institute of Surgical Research, Philipps University Marburg, Marburg, 14Department of Dermatology and Allergy, Allergy Center Mainfranken, University Hospital Würzburg, Würzburg, 15Department of Dermatology, Venereology, and Allergology and Leipzig Interdisciplinary Center for Allergology – LICA-CAC, University of Leipzig, Leipzig, 16Department of Dermatology and Allergy, Comprehensive Allergy Center, Hannover Medical School, Hannover, 17Department of Dermatology, Venereology, and Allergology, Charité University Hospital Berlin, Allergy Center Charité (ACC), Berlin, and 18Department of Dermatology and Allergology am Biederstein, School of Medicine, Technical University of Munich, Munich, Germany
This guideline on diagnostic procedures for suspected beta-lactam antibiotic (BLA) hypersensitivity was written by the German and Austrian professional associations for allergology, and the Paul-Ehrlich Society for Chemotherapy in a consensus procedure according to the criteria of the German Association of Scientific Medical Societies. BLA such as penicillins and cephalosporins represent the drug group that most frequently triggers drug allergies. However, the frequency of reports of suspected allergy in patient histories clearly exceeds the number of confirmed cases. The large number of suspected BLA allergies has a significant impact on, e.g., the quality of treatment received by the individual patient and the costs to society as a whole. Allergies to BLA are based on different immunological mechanisms and often manifest as maculopapular exanthema, as well as anaphylaxis; and there are also a number of less frequent special clinical manifestations of drug allergic reactions. All BLA have a beta-lactam ring. BLA are categorized into different classes: penicillins, cephalosporins, carbapenems, monobactams, and beta-lactamase inhibitors with different chemical structures. Knowledge of possible cross-reactivity is of considerable clinical significance. Whereas allergy to the common beta-lactam ring occurs in only a small percentage of all BLA allergic patients, cross-reactivity due to side chain similarities, such as aminopenicillins and aminocephalosporins, and even methoxyimino cephalosporins, are more common. However, the overall picture is complex and its elucidation may require further research. Diagnostic procedures used in BLA allergy are usually made up of four components: patient history, laboratory diagnostics, skin testing (which is particularly important), and drug provocation testing. The diagnostic approach – even in cases where the need to administer a BLA is acute – is guided by patient history and risk – benefit ratio in the individual case. Here again, further studies are required to extend the present state of knowledge. Performing allergy testing for suspected BLA hypersensitivity is urgently recommended not only in the interests of providing the patient with good medical care, but also due to the immense impact of putative BLA allergies on society as a whole.Correspondence to:
Dr. med. Gerda Wurpts, Clinic for Dermatology and Allergology, Aachen Comprehensive Allergy Center (ACAC), Uniklinik RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany
Email: [email protected]
Statement
Induction of penicillin tolerance during pregnancy: Allergological opinion on the recommendation of the current AWMF Guidelines on Diagnosis and Treatment of Syphilis (AWMF Registry No. 059-002)
Bettina Wedi, Werner Aberer, Knut Brockow, Heinrich Dickel, Randolf Brehler, Thilo Jakob, Burkhard Kreft, Vera Mahler, Hans F. Merk, Norbert Mülleneisen, Hagen Ott, Wolfgang Pfützner, Stefani Röseler, Franziska Ruëff, Cord Sunderkötter, Axel Trautmann, Regina Treudler, Margitta Worm, and Gerda Wurpts
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Volume 5 (2021) p. 67 - 71
Abstract
Allergologie select, Vol. 5/2021 (67-71)
Induction of penicillin tolerance during pregnancy: Allergological opinion on the recommendation of the current AWMF Guidelines on Diagnosis and Treatment of Syphilis (AWMF Registry No. 059-002)
Bettina Wedi1, Werner Aberer2, Knut Brockow3, Heinrich Dickel4, Randolf Brehler5, Thilo Jakob6, Burkhard Kreft7, Vera Mahler8,9, Hans F. Merk10, Norbert Mülleneisen11, Hagen Ott12, Wolfgang Pfützner13, Stefani Röseler14, Franziska Ruëff15, Cord Sunderkötter16, Axel Trautmann17, Regina Treudler18, Margitta Worm19, and Gerda Wurpts20
1Department of Dermatology, Allergology, and Venereology, Comprehensive Allergy Center, Hannover Medical School, Germany, 2Department of Dermatology, Medical University Graz, Austria, 3Department and Outpatient Clinic for Dermatology and Allergology am Biederstein, Technical University of Munich, 4Department of Dermatology, Venereology, and Allergology, St. Josef-Hospital, University Hospital of the Ruhr University of Bochum, 5Department of Dermatology, University Hospital Muenster, 6Department of Dermatology and Allergology, University Medical Center Gießen and Marburg, Campus Gießen, 7Department of Dermatology and Venereology, University Hospital Halle (Saale), 8Paul-Ehrlich-Institut, Langen, 9Dermatologists at the Merckhaus Dr. Herbst and Kollegen, Darmstadt, 10Department of Dermatology and Allergology, Aachen Comprehensive Allergy Center (ACAC), University Hospital RWTH Aachen, 11Lung and Allergy Center, Leverkusen, 12Pediatric Dermatology and Allergology, Children’s and Youth Hospital “Auf der Bult”, Hannover, 13Department of Dermatology and Allergology, University Medical Center Gießen and Marburg, Campus Marburg, 14Augustinians Hospital, Academic Teaching Hospital of the University of Cologne, 15Department and Outpatient Clinic of Dermatology, and Allergology, Allergy Center, Hospital of the University of Munich, 16University Hospital and Outpatient Clinic of Dermatogy and Venereology, University Hospital Halle (Saale), 17Department and Outpatient Clinic of Dermatology, Venereology, and Allergology, Allergy Center Mainfranken, University Hospital Würzburg, 18Department and Outpatient Clinic of Dermatology, Venereology, and Allergology and Leipzig Interdisciplinary Allergy Center – LICACAC, University of Leipzig, 19Department for Dermatology, Venereology, and Allergology, Charité-University Medicine Berlin, Allergy Center-Charité (ACC), Berlin, 20Department of Dermatology and Allergology, Aachen Comprehensive Allergy Center (ACAC), University Hospital RWTH Aachen, Germany
Correspondence to:
Prof. Dr. Bettina Wedi, Klinik für Dermatologie, Allergologie und Venerologie, Comprehensive Allergy Center, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
Email: [email protected]
Statement
Practical recommendations for the allergological risk assessment of the COVID-19 vaccination – a harmonized statement of allergy centers in Germany
Margitta Worm, Andrea Bauer, Bettina Wedi, Regina Treudler, Wolfgang Pfuetzner, Knut Brockow, Timo Buhl, Torsten Zuberbier, Joachim Fluhr, Gerda Wurpts, Ludger Klimek, Thilo Jakob, Hans F. Merk, Norbert Mülleneisen, Stefani Roeseler, Heinrich Dickel, Ulrike Raap, and Jörg Kleine-Tebbe
Volume 5 (2021) p. 72 - 76
Abstract
Allergologie select, Vol. 5/2021 (72-76)
Practical recommendations for the allergological risk assessment of the COVID-19 vaccination – a harmonized statement of allergy centers in Germany
Margitta Worm1, Andrea Bauer2, Bettina Wedi3, Regina Treudler4, Wolfgang Pfuetzner5, Knut Brockow6, Timo Buhl7, Torsten Zuberbier8, Joachim Fluhr8, Gerda Wurpts9, Ludger Klimek10, Thilo Jakob11, Hans F. Merk12, Norbert Mülleneisen13, Stefani Roeseler14, Heinrich Dickel15, Ulrike Raap16, and Jörg Kleine-Tebbe17
1Allergology and Immunology, Department of Dermatology, Venereology and Allergology, Campus Charité Mitte, University Medicine Berlin, 2Clinic and Polyclinic for Dermatology, University Hospital Carl Gustav Carus at the Technical University Dresden, 3Department of Dermatology, Allergology and Venereology Comprehensive Allergy Center (CAC) Treatment Center for Hereditary Angioedema in the ZSE, Hannover Medical School, 4Clinic of Dermatology, Venereology and Allergology, Leipzig University Medical Center, 5Hesse Allergy Center, Clinic for Dermatology and Allergology, Marburg University Hospital, 6Dermatology Clinic Campus Biederstein, Klinikum rechts der Isar, Technical University of Munich, 7Dermatology Venereology and Allergology Clinic, University Medical Center Göttingen Georg-August-University, 8Department of Dermatology and Allergy, Comprehensive Allergy Center Charité – Universitätsmedizin Berlin, Germany, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, 9Department of Dermatology and Allergology, University Hospital Aachen, 10Center for Rhinology and Allergology of the ENT University Clinic Mannheim, Wiesbaden, 11Department of Dermatology, Venerology and Allergology, University Hospital Giessen, 12Dermatology Clinic, RWTH Aachen University, 13Asthma and Allergy Center, Leverkusen, 14Allergy, Asthma and Anaphylaxis Center, Clinic of Pneumology, Allergology, Sleep and Respiratory Medicine, Augustinians Hospital, Cologne, 15Department of Allergology, Occupational and Environmental Dermatology, Clinic for Dermatology, Venereology and Allergology, St. Josef Hospital, Ruhr University Bochum, 16Department of Experimental Allergology and Immunodermatology, Department of Human Medicine, University of Oldenburg, and 17Allergy and Asthma Center Westend, Berlin, Germany
Severe allergic reactions to vaccines are very rare. Single severe reactions have occurred worldwide after vaccination with the new mRNA-based COVID-19 vaccines. PEG2000 is discussed as a possible trigger. We provide guidance on risk assessment regarding COVID-19 vaccination in patients with allergic diseases and suggest a standardized, resource-oriented diagnostic and therapeutic procedure. Reports of severe allergic reactions in the context of COVID-19 vaccination can be made via www.anaphylaxie.net using an online questionnaire.Correspondence to:
Univ.-Prof. Dr. med. Margitta Worm, Charité – Universitätsmedizin Berlin, Allergologie und Immunologie, Klinik für Dermatologie und Allergologie, Charitéplatz 1, 10117 Berlin
Email: [email protected]
Guideline
Guideline on allergen immunotherapy in IgE-mediated allergic diseases
Oliver Pfaar, Tobias Ankermann, Matthias Augustin, Petra Bubel, Sebastian Böing, Randolf Brehler, Peter A. Eng, Peter J. Fischer, Michael Gerstlauer, Eckard Hamelmann, Thilo Jakob, Jörg Kleine-Tebbe, Matthias Volkmar Kopp, Susanne Lau, Norbert Mülleneisen, Christoph Müller, Katja Nemat, Wolfgang Pfützner, Joachim Saloga, Klaus Strömer, Peter Schmid-Grendelmeier, Antje Schuster, Gunter Johannes Sturm, Christian Taube, Zsolt Szépfalusi, Christian Vogelberg, Martin Wagenmann, Wolfgang Wehrmann, Thomas Werfel, Stefan Wöhrl, Margitta Worm, and Bettina Wedi
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Volume 6 (2022) p. 167 - 232
Abstract
Allergologie select, Vol. 6/2022 (167-232)
Guideline on allergen immunotherapy in IgE-mediated allergic diseases
Oliver Pfaar1, Tobias Ankermann2, Matthias Augustin3, Petra Bubel4, Sebastian Böing5, Randolf Brehler6, Peter A. Eng7, Peter J. Fischer8, Michael Gerstlauer9, Eckard Hamelmann10, Thilo Jakob11, Jörg Kleine-Tebbe12, Matthias Volkmar Kopp13, Susanne Lau14, Norbert Mülleneisen15, Christoph Müller16, Katja Nemat17,18, Wolfgang Pfützner19, Joachim Saloga20, Klaus Strömer21, Peter Schmid-Grendelmeier22, Antje Schuster23, Gunter Johannes Sturm24, Christian Taube25, Zsolt Szépfalusi26, Christian Vogelberg27, Martin Wagenmann28, Wolfgang Wehrmann29, Thomas Werfel30, Stefan Wöhrl31, Margitta Worm32, and Bettina Wedi30
1Department of Otorhinolaryngology, Head and Neck Surgery, Section of Rhinology and Allergy, University Hospital Marburg, Philipps-Universität Marburg, Marburg, 2Department of Pediatrics, Städtisches Krankenhaus Kiel, Kiel, 3Institute for Health Services Research in Dermatology and Nursing, University Medical Center Hamburg, Hamburg, 4ENT practice Dr. Bubel, Eisleben, 5Specialized Practice in Pneumology, Allergology and Sleep Medicine, Düsseldorf/Meerbusch, 6Department of Dermatology, University Hospital Münster, Münster, Germany, 7Section of Pediatric Pulmonology and Allergy Children’s Hospital, Aarau, Switzerland, 8Practice for Pediatric and Adolescent Medicine m.S. Allergology and Pediatric Pneumology, Schwäbisch Gmünd, 9Paediatric Pulmonology and Allergology, University Medical Center Augsburg, Augsburg, 10Department of Paediatrics, Children‘s Center Bethel, University Bielefeld, Bielefeld, 11Department of Dermatology and Allergology, University Medical Center, Justus Liebig University Gießen, Gießen, 12Allergy & Asthma Center Westend, Outpatient Clinic & Research Center, Berlin, Germany, 13Department of Paediatrics, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland, 14Charité Universitätsmedizin Berlin, Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Berlin, 15Asthma-Allergiezentrum Leverkusen, 16Medical Center – University of Freiburg, Center for Pediatrics, Department of General Pediatrics, Adolescent Medicine and Neonatology, Freiburg, 17Pediatric Pneumology and Allergology (medical practice), Children’s Center Dresden-Friedrichstadt (Kid), Dresden, 18University AllergyCenter Dresden, University Hospital Dresden (UKD), Dresden, 19Department of Dermatology and Allergology, University Clinic, Philipps-Universität Marburg, Marburg, 20Department of Dermatology, University Medical Center, Johannes Gutenberg-University, Mainz, 21Private Office Dermatology, Ahaus, Germany, 22Allergy Unit, Dept. Of Dermatology, University Hospital of Zurich, Zurich, Switzerland, 23Department of Pediatrics, Düsseldorf University Hospital, Düsseldorf, Germany, 24Department of Dermatology and Venerology, Medical University of Graz, Allergy Outpatient Clinic Reumannplatz, Vienna, Austria, 25Department of Pulmonary Medicine, University Hospital Essen – Ruhrlandklinik, Essen, Germany, 26Department of Pediatrics and Adolescent Medicine, Division of Pediatric Pulmonology, Allergology and Endocrinology, Comprehensive Center Pediatrics, Medical University of Vienna, Vienna, Austria, 27Department of Pediatric Pneumology and Allergology, University Hospital Carl Gustav Carus Dresden, Technical, University Dresden, Dresden, 28Department of Otorhinolaryngology (HNO-Klinik), Düsseldorf University Hospital (UKD), Düsseldorf, 29MVZ Dermatology and Dermatological Surgery Münster, Münster, 30Department of Dermatology & Allergy, Comprehensive Allergy Center, Hannover Medical School, Hannover, Germany, 31Floridsdorf Allergy Center (FAZ), Vienna, Austria, 32Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Dermatology and Allergy, Berlin
Correspondence to:
Prof. Dr. med. Oliver Pfaar, Klinik für Hals-, Nasen- und Ohrenheilkunde, Universitätsklinikum Gießen und Marburg GmbH, Standort Marburg, Baldingerstraße, 35043 Marburg
Email: [email protected]
Original
Prospective, monocentric, observational study of the long-term effectiveness of omalizumab in chronic urticaria
Stephan Traidl and Bettina Wedi
Volume 7 (2023) p. 1 - 7
Abstract
Allergologie select, Vol. 7/2023 (1-7)
Prospective, monocentric, observational study of the long-term effectiveness of omalizumab in chronic urticaria
Stephan Traidl and Bettina Wedi
Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
Omalizumab, a monoclonal antibody targeting IgE, has been approved in 2014 for the treatment of H1 antihistaminerefractory chronic urticaria. Data on longterm effectiveness and predictive factors for treatment response are currently limited. In this monocentric, prospective, observational study, 112 patients with chronic spontaneous urticaria (CSU) and 32 patients with chronic inducible urticaria (CIndU) were included. In addition to a rapid response, omalizumab also showed good effectiveness on both forms of chronic urticaria over 2 years. Low total IgE and elevated Yersinia IgA were identified as potential predictive markers for slower treatment responses in CSU. In conclusion, the present study highlights the efficacy of omalizumab for the treatment of chronic urticaria. With emerging new therapeutic options for chronic urticaria, further genetic as well as molecular markers are needed to establish patientspecific therapy selection.Correspondence to:
Dr. med. Stephan Traidl, Klinik für Dermatologie, Allergologie und Venerologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
Email: [email protected]
Guideline
Guideline for allergological diagnosis of drug hypersensitivity reactions
Knut Brockow, Gerda Wurpts, Axel Trautmann, Wolfgang Pfützner, Regina Treudler, Andreas J. Bircher, Randolf Brehler, Timo Buhl, Heinrich Dickel, Thomas Fuchs, Thilo Jakob, Julia Kurz, Burkhard Kreft, Lars Lange, Hans F. Merk, Maja Mockenhaupt, Norbert Mülleneisen, Hagen Ott, Johannes Ring, Franziska Ruëff, Bernhardt Sachs, Helmut Sitter, Bettina Wedi, Stefan Wöhrl, Margitta Worm, and Torsten Zuberbier
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Volume 7 (2023) p. 122 - 139
Abstract
Allergologie select, Vol. 7/2023 (122-139)
Guideline for allergological diagnosis of drug hypersensitivity reactions
Knut Brockow1, Gerda Wurpts2, Axel Trautmann3, Wolfgang Pfützner4, Regina Treudler5, Andreas J. Bircher6, Randolf Brehler7, Timo Buhl8, Heinrich Dickel9, Thomas Fuchs8, Thilo Jakob10, Julia Kurz4, Burkhard Kreft11, Lars Lange12, Hans F. Merk2, Maja Mockenhaupt13, Norbert Mülleneisen14, Hagen Ott15, Johannes Ring1, Franziska Ruëff16, Bernhardt Sachs2, Helmut Sitter17, Bettina Wedi18, Stefan Wöhrl19, Margitta Worm20, and Torsten Zuberbier20
1Department of Dermatology and Allergology Biederstein, Faculty of Medicine, Technical University of Munich, Munich, 2Department of Dermatology and Allergology, Germany, Aachen Comprehensive Allergy Center (ACAC), University Hospital of RWTH Aachen University, Aachen, 3Department of Dermatology and Allergology, Allergy Center Mainfranken, University Hospital Würzburg, Würzburg, 4Department of Dermatology and Allergology, University Hospital Giessen and Marburg, Marburg, 5Department of Dermatology, Venerology and Allergology, University of Leipzig, Leipzig, Germany, 6Facoltà di Scienze biomediche, Università della Svizzera italiana, Lugano, and Department of Dermatology and Allergology, University Hospital Basel, Switzerland, 7Department of Dermatology, Münster University Hospital, Münster, 8Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, 9Department of Dermatology, Venerology and Allergology, St. Josef Hospital, University Hospital of the Ruhr University Bochum, Bochum, 10Department of Dermatology and Allergology, University Hospital, Justus-Liebig University, Gießen, 11Department of Dermatology and Venereology, University Hospital Halle, Halle (Saale), 12Pediatric Clinic, Marienhospital Bonn, Bonn, 13Documentation Center for Severe Skin Reactions, Department of Dermatology and Venereology, University Medical Center Freiburg, Freiburg, 14Asthma Allergy Center Leverkusen, Leverkusen, 15Children’s and Youth Hospital Auf der Bult, Hanover, 16Department of Dermatology and Allergology, Allergy Center, Ludwig Maximilian University of Munich, 17Institute for Theoretical Surgery, Philipps University of Marburg, Marburg, 18Hanover Medical School, Department of Dermatology, Allergology and Venereology, Hanover, Germany, 19Floridsdorf Allergy Center (FAZ), Vienna, Austria, and 20Allergology and Immunology, Department of Dermatology, Venereology and Allergology, Charité-Universitätsmedizin Berlin, Berlin, Germany
Correspondence to:
Prof. Dr. med. Knut Brockow, Department of Dermatology and Allergology at Biederstein, Faculty of Medicine, Technical University of Munich, Biedersteiner Straße 29, 80802 Munich, Germany
Email: [email protected]
Guideline
Diagnosis and treatment of Hymenoptera venom allergy
Franziska Ruëff, Andrea Bauer, Sven Becker, Randolf Brehler, Knut Brockow, Adam M. Chaker, Ulf Darsow, Jörg Fischer, Thomas Fuchs, Michael Gerstlauer, Sunhild Gernert, Eckard Hamelmann, Wolfram Hötzenecker, Ludger Klimek, Lars Lange, Hans Merk, Norbert K. Mülleneisen, Irena Neustädter, Wolfgang Pfützner, Wolfgang Sieber, Helmut Sitter, Christoph Skudlik, Regina Treudler, Bettina Wedi, Stefan Wöhrl, Margitta Worm and Thilo Jakob
Volume 7 (2023) p. 154 - 190
Abstract
Allergologie select, Vol. 7/2023 (154-190)
Diagnosis and treatment of Hymenoptera venom allergy
Franziska Ruëff1, Andrea Bauer2, Sven Becker3, Randolf Brehler4, Knut Brockow5, Adam M. Chaker6, Ulf Darsow5, Jörg Fischer7, Thomas Fuchs8, Michael Gerstlauer9, Sunhild Gernert10, Eckard Hamelmann11, Wolfram Hötzenecker12, Ludger Klimek13, Lars Lange10, Hans Merk14, Norbert K. Mülleneisen15, Irena Neustädter16, Wolfgang Pfützner17, Wolfgang Sieber18, Helmut Sitter19, Christoph Skudlik20, Regina Treudler21, Bettina Wedi22, Stefan Wöhrl23, Margitta Worm24 and Thilo Jakob25
1Department of Dermatology and Allergy, LMU University Hospital, Munich, 2Department of Dermatology, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, 3Department of Otorhinolaryngology, Head and Neck Surgery, University of Tuebingen, Tübingen, 4Department of Dermatology, Münster University Hospital, Münster, 5Department of Dermatology and Allergology Biederstein, Faculty of Medicine, Technical University of Munich, Munich, 6Department of Otorhinolaryngology Klinikum rechts der Isar, Faculty of Medicine, Technical University of Munich, Munich, 7University Hospital for Dermatology and Allergology, Clinic Oldenburg, Oldenburg, 8Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, 9Clinic for Children and Adolescents, University Hospital Augsburg, Augsburg, 10Pediatric Clinic, Marienhospital Bonn, GFO Kliniken, Bonn, 11Children’s Center Bethel, University Hospital OWL, Bielefeld University, Bielefeld, Germany, 12Department of Dermatology, Kepler University Hospital, Medical Faculty of University Linz, Linz, Austria, 13Center for Rhinology and Allergology, Wiesbaden, 14Department of Dermatology and Allergology, University Hospital of RWTH Aachen University, Aachen, 15Center for Asthma and Allergy, Leverkusen, 16Cnopfsche Paediatric Clinic, Nuremberg, 17Department of Dermatology and Allergology, University Hospital Marburg, Philipps-Universität Marburg, Marburg, 18Hospital Wörth an der Donau, Wörth an der Donau, 19Institute for Theoretical Surgery, Philipps-University Marburg, Marburg, 20Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at the University of Osnabrueck, Osnabrueck, and BG Clinic Hamburg, Hamburg, 21University Leipzig Medical Faculty, Leipzig, 22Comprehensive Allergy, Department of Dermatology and Allergy, Hannover Medical School, Hanover, Germany, 23Floridsdorf Allergy Center (FAZ), Vienna, Austria, 24Department of Dermatology, Venereology and Allergology, Charité-Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, and 25Department of Dermatology and Allergology, University Hospital Giessen, Justus Liebig University Gießen, Gießen, Germany
Hymenoptera venom (HV) is injected into the skin during a sting by Hymenoptera such as bees or wasps. Some components of HV are potential allergens and can cause large local and/or systemic allergic reactions (SAR) in sensitized individuals. During their lifetime, ~ 3% of the general population will develop SAR following a Hymenoptera sting. This guideline presents the diagnostic and therapeutic approach to SAR following Hymenoptera stings. Symptomatic therapy is usually required after a severe local reaction, but specific diagnosis or allergen immunotherapy (AIT) with HV (VIT) is not necessary. When taking a patient’s medical history after SAR, clinicians should discuss possible risk factors for more frequent stings and more severe anaphylactic reactions. The most important risk factors for more severe SAR are mast cell disease and, especially in children, uncontrolled asthma. Therefore, if the SAR extends beyond the skin (according to the Ring and Messmer classification: grade > I), the baseline serum tryptase concentration shall be measured and the skin shall be examined for possible mastocytosis. The medical history should also include questions specific to asthma symptoms. To demonstrate sensitization to HV, allergists shall determine concentrations of specific IgE antibodies (sIgE) to bee and/or vespid venoms, their constituents and other venoms as appropriate. If the results are negative less than 2 weeks after the sting, the tests shall be repeated (at least 4 – 6 weeks after the sting). If only sIgE to the total venom extracts have been determined, if there is double sensitization, or if the results are implausible, allergists shall determine sIgE to the different venom components. Skin testing may be omitted if in-vitro methods have provided a definitive diagnosis. If neither laboratory diagnosis nor skin testing has led to conclusive results, additional cellular testing can be performed. Therapy for HV allergy includes prophylaxis of reexposure, patient self treatment measures (including use of rescue medication) in the event of re-stings, and VIT. Following a grade I SAR and in the absence of other risk factors for repeated sting exposure or more severe anaphylaxis, it is not necessary to prescribe an adrenaline auto-injector (AAI) or to administer VIT. Under certain conditions, VIT can be administered even in the presence of previous grade I anaphylaxis, e.g., if there are additional risk factors or if quality of life would be reduced without VIT. Physicians should be aware of the contraindications to VIT, although they can be overridden in justified individual cases after weighing benefits and risks. The use of β-blockers and ACE inhibitors is not a contraindication to VIT. Patients should be informed about possible interactions. For VIT, the venom extract shall be used that, according to the patient’s history and the results of the allergy diagnostics, was the trigger of the disease. If, in the case of double sensitization and an unclear history regarding the trigger, it is not possible to determine the culprit venom even with additional diagnostic procedures, VIT shall be performed with both venom extracts. The standard maintenance dose of VIT is 100 µg HV. In adult patients with bee venom allergy and an increased risk of sting exposure or particularly severe anaphylaxis, a maintenance dose of 200 µg can be considered from the start of VIT. Administration of a non-sedating H1-blocking antihistamine can be considered to reduce side effects. The maintenance dose should be given at 4-weekly intervals during the first year and, following the manufacturer’s instructions, every 5 – 6 weeks from the second year, depending on the preparation used; if a depot preparation is used, the interval can be extended to 8 weeks from the third year onwards. If significant recurrent systemic reactions occur during VIT, clinicians shall identify and as possible eliminate co-factors that promote these reactions. If this is not possible or if there are no such co-factors, if prophylactic administration of an H1-blocking antihistamine is not effective, and if a higher dose of VIT has not led to tolerability of VIT, physicians should should consider additional treatment with an anti IgE antibody such as omalizumab as off lable use. For practical reasons, only a small number of patients are able to undergo sting challenge tests to check the success of the therapy, which requires in-hospital monitoring and emergency standby. To perform such a provocation test, patients must have tolerated VIT at the planned maintenance dose. In the event of treatment failure while on treatment with an ACE inhibitor, physicians should consider discontinuing the ACE inhibitor. In the absence of tolerance induction, physicians shall increase the maintenance dose (200 µg to a maximum of 400 µg in adults, maximum of 200 µg HV in children). If increasing the maintenance dose does not provide adequate protection and there are risk factors for a severe anaphylactic reaction, physicians should consider a co-medication based on an anti-IgE antibody (omalizumab; off-label use) during the insect flight season. In patients without specific risk factors, VIT can be discontinued after 3 – 5 years if maintenance therapy has been tolerated without recurrent anaphylactic events. Prolonged or permanent VIT can be considered in patients with mastocytosis, a history of cardiovascular or respiratory arrest due to Hymenoptera sting (severity grade IV), or other specific constellations associated with an increased individual risk of recurrent and/or severe SAR (e.g., hereditary α-tryptasemia). In cases of strongly increased, unavoidable insect exposure, adults may receive VIT until the end of intense contact. The prescription of an AAI can be omitted in patients with a history of SAR grade I and II when the maintenance dose of VIT has been reached and tolerated, provided that there are no additional risk factors. The same holds true once the VIT has been terminated after the regular treatment period. Patients with a history of SAR grade ≥ III reaction, or grade II reaction combined with additional factors that increase the risk of non response or repeated severe sting reactions, should carry an emergency kit, including an AAI, during VIT and after regular termination of the VIT.Correspondence to:
Prof. Dr. med. Franziska Ruëff, Klinik und Poliklinik für Dermatologie, und Allergologie, Klinikum der Universität München, Frauenlobstraße 9-11, 80337 Munich, Germany,
Email: [email protected]
Discussion
DGAKI and PEI in dialogue 2023: Diagnostics and allergen immunotherapy
Oliver Pfaar, Eckard Hamelmann, Christian Taube, Martin Wagenmann, Bettina Wedi, Thomas Werfel, Detlef Bartel, Andreas Bonertz, Diana Hartenstein, Susanne Kaul, Vera Mahler, and Margitta Worm
Volume 7 (2023) p. 229 - 235
Abstract
Allergologie select, Vol. 7/2023 (229-235)
DGAKI and PEI in dialogue 2023: Diagnostics and allergen immunotherapy
Oliver Pfaar1, Eckard Hamelmann2, Christian Taube3, Martin Wagenmann4, Bettina Wedi5, Thomas Werfel6, Detlef Bartel7, Andreas Bonertz7, Diana Hartenstein7, Susanne Kaul7, Vera Mahler7, and Margitta Worm8
1Section of Rhinology and Allergy, Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Marburg, 2Children’s Center Bethel, University Hospital OWL, Bielefeld University, Bielefeld, 3Department of Pulmonary Medicine, University Hospital Essen – Ruhrlandklinik, Essen, 4Department of Otorhinolaryngology, Düsseldorf University Hospital, Heinrich Heine University, Düsseldorf, 5Comprehensive Allergy Center, Department of Dermatology and Allergy, Hannover Medical School, Hannover, 6Department of Dermatology and Allergy, Hannover Medical School, Hannover, 7Paul-Ehrlich-Institut, Langen, 8Allergology and Immunology, Department of Dermatology, Venereology and Allergology, Charité-Universitätsmedizin Berlin, Berlin, Germany
A roundtable discussion on February 10, 2023 between the German Society for Allergology and Clinical Immunology (DGAKI) and the Paul-Ehrlich-Institut (PEI) aimed to discuss in detail current aspects of allergen immunotherapy (AIT), its regulatory framework under the transitional provision of the Therapy Allergen Ordinance (TAO), and the consequences for the planned guideline work of the DGAKI, regulatory challenges in the approval of AIT products for children and adolescents as well as allergy diagnostics. The content and discussion points of this dialogue are summarized and are set in context with the current literature.Correspondence to:
Prof. Dr. med. Oliver Pfaar, Section of Rhinology and Allergy, Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität, Marburg, Baldinger Strasse, 35043 Marburg, Germany
Email: [email protected]
Consensus paper
“Delabeling” by direct provocation testing in children and adolescents with a suspected history of a delayed reaction to β-lactam antibiotics. Consensus paper of Gesellschaft für pädiatrische Allergologie und Umweltmedizin (GPAU
Irena Neustädter, Sophie Blatt, Gerda Wurpts, Heinrich Dickel, Christian Walter, Werner Aberer, Sebastian Bode, Timo Buhl, Sunhild Gernert, Susanne Harner, Guido Heine, Sebastian Kerzel, Meike Köhler, Lars Lange, Joachim List, Hans F. Merk, Thomas Nüßlein, Hagen Ott, Franziska Sattler, Antje Schuster, Helen Straube, Bettina Wedi, Torsten Zuberbier, and Knut Brockow
Volume 8 (2024) p. 206 - 211
Abstract
Allergologie select, Vol. 8/2024 (206-211)
“Delabeling” by direct provocation testing in children and adolescents with a suspected history of a delayed reaction to β-lactam antibiotics. Consensus paper of Gesellschaft für pädiatrische Allergologie und Umweltmedizin (GPAU
Irena Neustädter1, Sophie Blatt1, Gerda Wurpts3, Heinrich Dickel4, Christian Walter5, Werner Aberer6, Sebastian Bode7, Timo Buhl8, Sunhild Gernert9, Susanne Harner10, Guido Heine11, Sebastian Kerzel10, Meike Köhler12, Lars Lange9, Joachim List13, Hans F. Merk2, Thomas Nüßlein14, Hagen Ott15, Franziska Sattler12, Antje Schuster16, Helen Straube17, Bettina Wedi18, Torsten Zuberbier19, and Knut Brockow2
1Pediatric and Adolescent Medicine, Diakoneo Klinik Hallerwiese-Cnopfsche Kinderklinik, Nuremberg, 2Clinic and Polyclinic for Dermatology and Allergology at Biederstein, Technical University of Munich, Munich, 3Clinic for Dermatology and Allergology, Aachen Comprehensive Allergy Center (ACAC), University Hospital of RWTH Aachen University, Aachen, 4Clinic for Dermatology, Venereology and Allergology, St. Josef Hospital, University Hospital of the Ruhr University Bochum, Bochum, 5Practice for Pediatric and Adolescent Medicine, Allergology, Bad Homburg, Germany, 6Department of Dermatology and Venereology, Medical University of Graz, Austria, 7University Clinic for Children and Adolescents, Ulm, 8Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, 9Department of Pediatrics, St. Marien Hospital, GFO Clinics, Bonn, 10Clinic and Polyclinic for Pediatrics and Adolescent Medicine, University of Regensburg, Regensburg, 11Department of Dermatology, Venereology and Allergology, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, 12Asthma and Allergy Outpatient Clinic, Dr. von Hauner Children’s Hospital, LMU University Hospital, Munich, 13University of Freiburg, Center for Pediatric and Adolescent Medicine, Freiburg, 14Clinic for Pediatrics and Adolescent Medicine, Gemeinschaftsklinikum Mittelrhein, Koblenz, 15Children’s and Youth Hospital Auf der Bult, Hanover, 16Clinic for General Pediatrics, Neonatology and Pediatric Cardiology, University Hospital Düsseldorf, Düsseldorf, 17Princess Margaret Children’s Hospital, Darmstadt, 18Hannover Medical School, Clinic for Dermatology, Allergology and Venereology, Hanover, and 19Allergology and Immunology, Department of Dermatology, Venereology and Allergology, Charité-Universitätsmedizin Berlin, Berlin, Germany
Background: Approximately 10% of European children are classified as allergic to drugs. In the majority of these children, no allergy to β-lactam antibiotics (BLA) can be found. In most cases, the exanthema is caused by the infection. Materials and methods: The objective of this paper is to describe the causes and consequences of a misdiagnosis of drug allergy. We propose a method for establishing a correct diagnosis in the case of a history of a delayed reaction during treatment with a BLA. For this purpose, a proposal was discussed via e-mail communication, and consensus was reached among the members of the drug allergy working groups of the participating medical societies. Results: The suspicion of a BLA allergy based on the medical history alone can have a negative impact on future antibiotic treatment. Exanthema associated with febrile infections not related to drug administration is a frequent finding in children. This makes it all the more important to be able to recommend a standardized procedure for clarification in children and adolescents with suspected hypersensitivity reactions. The medical history should be the basis on which to diagnose either a drug allergy or another possible differential diagnosis. A mild maculopapular exanthema (MPE) can be an expression of a drug allergy or a nonspecific viral exanthema. Uncomplicated MPE is not associated with significant systemic involvement, and there is no involvement of the mucous membranes or cutaneous blistering. Only a small number of children with uncomplicated MPE show positive skin tests and only ~ 7 – 16% of suspected BLA diagnoses can be confirmed by provocation tests. Thus, in children with uncomplicated MPE, drug provocation can be performed in an outpatient setting even without prior skin testing. This paper presents a 3-day outpatient direct provocation scheme for BLA delabeling in children with uncomplicated MPE. Conclusion: Many children and adolescents are unnecessarily denied treatment with BLA after an uncomplicated MPE while being treated with a BLA.Correspondence to:
Dr. med. Irena Neustädter, Pediatric and Adolescent Medicine, Diakoneo Klinik Hallerwiese-Cnopfsche Kinderklinik, St.-Johannis-Mühlgasse 19, 90419 Nuremberg, Germany
Email: [email protected]
Review
Hereditary angioedema (HAE) in children and adolescents: New treatment options
Maria Fasshauer and Bettina Wedi
Volume 8 (2024) p. 336 - 345
Abstract
Allergologie select, Vol. 8/2024 (336-345)
Hereditary angioedema (HAE) in children and adolescents: New treatment options
Maria Fasshauer1 and Bettina Wedi2
1Klinikum St. Georg Leipzig, Clinic for Pediatrics and Adolescent Medicine, ImmunDefektCentrum Leipzig (IDCL), Leipzig, and 2Hannover Medical School (MHH), Department of Dermatology, Allergology and Venereology, Interdisciplinary Allergy Center of the MHH, Treatment Center for Hereditary Angioedema of the MHH, Hannover, Germany
Modern management of hereditary angioedema (HAE) due to reduced C1 inhibitor (C1-INH) function or concentration (HAE-C1-INH) focuses on individualized therapeutic strategies to address the specific needs of children and adolescents as well as the severity of the disease. Psychosocial factors such as the burden of disease and therapy on quality of life and participation play an important role. New medications have already significantly improved the prognosis and health related quality of life in HAE patients, but not all of these therapies have yet been approved for children. Further treatment options that inhibit bradykinin effects are currently being investigated. They target factor XIIa, prekallikrein, plasma kallikrein, or the bradykinin B2 receptor. Modern research focuses on oral options or long-acting parenteral therapy approaches to further optimize care and, in particular, the needs of children. There are also initial developments in the field of gene therapy, which could represent a causal treatment option for HAE in the future.Correspondence to:
Dr. med. Maria Fasshauer, Klinikum St. Georg Leipzig, Clinic for Pediatrics and Adolescent Medicine, ImmunDefektCentrum Leipzig (IDCL), Delitzscher Str. 141, 04129 Leipzig, Germany
Email: [email protected]
Position Paper
Occupational anaphylaxis: A Position Paper of the German Society of Allergology and Clinical Immunology (DGAKI)
Regina Treudler, Margitta Worm, Andrea Bauer, Heinrich Dickel, Guido Heine, Uta Jappe, Ludger Klimek, Monika Raulf, Bettina Wedi, Dorothea Wieczorek, Wojciech Francuzik, Thilo Jakob, Oliver Pfaar, Johannes Ring, Franziska Rueff, Sabine Schnadt, Thomas Werfel, Gerda Wurpts, Julia Zarnowski, Torsten Zuberbier, and Knut Brockow
Volume 8 (2024) p. 407 - 424
Abstract
Allergologie select, Vol. 8/2024 (407-424)
Occupational anaphylaxis: A Position Paper of the German Society of Allergology and Clinical Immunology (DGAKI)
Regina Treudler1, Margitta Worm2, Andrea Bauer3, Heinrich Dickel4, Guido Heine5, Uta Jappe6, Ludger Klimek7, Monika Raulf8, Bettina Wedi9, Dorothea Wieczorek9, Wojciech Francuzik2, Thilo Jakob10, Oliver Pfaar11, Johannes Ring12, Franziska Rueff13, Sabine Schnadt14, Thomas Werfel9, Gerda Wurpts15, Julia Zarnowski16, Torsten Zuberbier1,17, and Knut Brockow12
1Institute of Allergology, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, 2Department of Dermatology, Venereology and Allergology, Charité – Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, 3Department of Dermatology, University AllergyCenter, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, 4Department of Dermatology, Venereology and Allergology, St. Josef Hospital, University Medical Center, Ruhr University Bochum, Bochum, 5Department of Dermatology, Venereology and Allergy, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, 6Division of Clinical and Molecular Allergology, Research Center Borstel, Airway Research, Center North (ARCN), Member of the German Center for Lung Research, Borstel, Interdisciplinary Allergy Outpatient Clinic, Department of Pneumology, University of Luebeck, 7Department of Otolaryngology, Head and Neck Surgery, Universitätsmedizin Mainz, Mainz and Center for Rhinology and Allergology, Wiesbaden, 8Department of Allergology/Immunology; Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bochum, Germany, 9Department of Dermatology and Allergy, Comprehensive Allergy Center, Hannover Medical School, Hannover, 10Department of Dermatology and Allergology, University Medical Center Giessen (UKGM), Justus-Liebig-University Giessen, Giessen, 11Department of Otorhinolaryngology, Head and Neck Surgery, Section of Rhinology and Allergy, University Hospital Marburg, Philipps-Universität Marburg, Marburg, 12Department of Dermatology and Allergy Biederstein, School of Medicine and Health, Technical University of Munich TUM), 13Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, 14German Allergy and Asthma Association (DAAB), Mönchengladbach, 15Clinic for Dermatology and Allergology, Aachen Comprehensive Allergy Center (ACAC), University Hospital of RWTH Aachen University, Aachen, 16Department of Dermatology, Venerology and Allergology, University of Leipzig Medical Center, Leipzig, and 17Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology, Berlin, Germany
Background: Anaphylaxis is a systemic allergic reaction that is potentially life-threatening. Occupational anaphylaxis is an anaphylaxis that occurs in an occupational context. In this position paper, we propose diagnostic criteria for occupational anaphylaxis and provide an overview of the current state of knowledge in terms of prevalence, triggers, prevention, and management. Results: The most common triggers of occupational anaphylaxis include Hymenoptera venoms, followed by food and drugs. Chemicals, bites or contact with animals (mammals/snakes/insects) and natural rubber latex are far less common. Occupations at risk for occupational anaphylaxis are therefore beekeepers, outdoor workers, or those who handle food as well as healthcare workers. The route of contact, intensity, and frequency of exposure, type of allergen, and the simultaneous occurrence of co-factors determine the clinical manifestation. A detailed medical history is required to confirm the diagnosis of anaphylaxis and to identify the trigger. Both skin tests and the determination of specific IgE are recommended, but only very few commercially available and quality-tested allergens are available that can be examined using both test methods. Preventive measures are based on avoiding further exposure or, if necessary, replacing a working substance. A written emergency plan and the prescription of an adrenaline autoinjector as well as instructions for its use are mandatory. Allergen immunotherapy is recommended for systemic Hymenoptera venom allergy. Depending on the national healthcare systems, patients with occupational anaphylaxis must be reported to the accident insurance. Conclusion: Occupational anaphylaxis is very rare. We recommend educational measures and generally standardized recording of occupational anaphylaxis for occupations with an increased risk of anaphylaxis.Correspondence to:
Prof. Dr. Regina Treudler, Charité – Universitätsmedizin Berlin, Campus Benjamin Franklin, Institute of Allergology, Hindenburgdamm 30, 12203 Berlin, Germany
Email: [email protected]
Position Paper
Recommendations on how to proceed in case of suspected allergy to penicillin/β-lactam antibiotics. Position paper of the German Society for Allergology and Clinical Immunology (DGAKI) in cooperation with the German Society for Pediatric Allergology (
Knut Brockow, Wolfgang Pfützner, Bettina Wedi, Gerda Wurpts, Axel Trautmann, Burkhard Kreft, Timo Buhl, Mathias Sulk, Andreas Recke, Kathrin Scherer, Stefan Wöhrl, Irena Neustädter, Regina Treudler, Christiane Querbach, and Margitta Worm
Volume 9 (2025) p. 28 - 39
Abstract
Allergologie select, Vol. 9/2025 (28-39)
Recommendations on how to proceed in case of suspected allergy to penicillin/β-lactam antibiotics. Position paper of the German Society for Allergology and Clinical Immunology (DGAKI) in cooperation with the German Society for Pediatric Allergology (
Knut Brockow1, Wolfgang Pfützner2, Bettina Wedi3, Gerda Wurpts4, Axel Trautmann5, Burkhard Kreft6, Timo Buhl7, Mathias Sulk8, Andreas Recke9, Kathrin Scherer10, Stefan Wöhrl11, Irena Neustädter12, Regina Treudler13, Christiane Querbach14, and Margitta Worm15
1Department of Dermatology and Allergology Biederstein, Faculty of Medicine and Health, Technical University of Munich, Munich, 2Department of Dermatology and Allergology, University Hospital Giessen and Marburg, Marburg, 3Hanover Medical School, Department of Dermatology, Allergology and Venereology, Hanover, 4Department of Dermatology and Allergology, Germany, Aachen Comprehensive Allergy Center (ACAC), University Hospital of RWTH Aachen University, Aachen, 5Department of Dermatology and Allergology, Allergy Center Mainfranken, University Hospital Würzburg, Würzburg, 6Department of Dermatology and Venereology, University Hospital Halle, Halle (Saale), 7Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, 8Department of Dermatology, Münster University Hospital, Münster, 9Department of Dermatology, Allergology and Venereology, University Hospital Schleswig-Holstein, Holstein Campus Lübeck, Lübeck, Germany, 10Department of Dermatology, Cantonal Hospital Aarau, Aarau, and Department of Dermatology and Allergology, University Hospital Basel, Switzerland, 11Floridsdorf Allergy Center (FAZ), Vienna, Austria, 12Pediatric Clinic, Diakoneo Klinik Hallerwiese-Cnopfsche Kinderklinik, Nuremberg, 13Institute for Allergy Research, Charité Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, 14Hospital Pharmacy, Klinikum rechts der Isar, Technical University of Munich, Munich, and 15Allergology and Immunology, Department of Dermatology, Venereology and Allergology, Charité-Universitätsmedizin Berlin, Berlin, Germany
β-lactam antibiotics (BLAs) are still the antibiotics of first choice for the treatment of many bacterial infections. Treatment with a BLA is often hindered by a suspected allergy, up to 10% of the population report an allergy to penicillin. After Position Paper allergological evaluation of the suspected allergic reaction to a BLA, most patients show a low probability of a BLA allergy; only in a minority of cases an allergic reaction to the repeated administration of a BLA appear likely in view of the previous history. In > 90% of cases, the suspected BLA allergy can be ruled out by allergy diagnostics. We recommend a risk-stratified approach in the context of an urgent need for BLA, which should enable most patients to receive a BLA therapy. After acute therapy, allergy diagnostics have to be done to clearly prove or reliably rule out a BLA allergy.Correspondence to:
Prof. Dr. med. Knut Brockow, Department of Dermatology and Allergology Biederstein, Faculty of Medicine and Health, Technical University of Munich, Biedersteiner Strasse 29, 80802 Munich, Germany
Email: [email protected]
Consensus paper
Expert consensus on the long-term use of lanadelumab in hereditary angioedema: Toward harmonized care
Emel Aygören-Pürsün, Jens Greve, Inmaculada Martinez-Saguer, Susanne Trainotti, Mathias Sulk, Bettina Wedi, Ellen Witte-Händel, and Markus Magerl
Volume 10 (2026) p. 86 - 97
Abstract
Allergologie select, Vol. 10/2026 (86-97)
Expert consensus on the long-term use of lanadelumab in hereditary angioedema: Toward harmonized care
Emel Aygören-Pürsün1, Jens Greve2, Inmaculada Martinez-Saguer3, Susanne Trainotti4, Mathias Sulk5, Bettina Wedi6, Ellen Witte-Händel7,8, and Markus Magerl7,9
1University Hospital Frankfurt, Goethe University, Frankfurt, 2Department of Otorhinolaryngology, Head and Neck Surgery, Ulm University Medical Center, Ulm, 3Haemophilia Centre Rhine Main, Frankfurt/Main, 4Technical University of Munich, TUM School of Medicine and Health, Department of Otorhinolaryngology, Head and Neck Surgery, TUM University Hospital, Munich, 5Department of Dermatology, University of Münster, Münster, 6Department of Dermatology and Allergy, Comprehensive Allergy Center, Hannover Medical School, Hannover, 7Angioedema Center of Reference and Excellence (ACARE), Institute of Allergology, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 8Global Allergy and Asthma Excellence Network, ACARE/UCARE coordinating office, and 9Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology, Berlin, Germany
Background: Hereditary angioedema (HAE) is a rare, potentially life-threatening disease caused in most cases by C1 inhibitor deficiency. Lanadelumab, a monoclonal antibody targeting plasma kallikrein, is an effective long-term prophylactic (LTP) treatment for HAE. However, consensus on best practices remains lacking. Objectives: This study aimed to report consensus statements on key principles on long-term lanadelumab therapy for HAE in Germany developed at an HAE LTP Expert Meeting in the year 2024 in Frankfurt, Germany. Materials and methods: A multidisciplinary panel of seven German HAE experts participated in a consensus process to align current guidelines with real-world clinical practice. Following literature review and debate, keynotes were drafted, refined, and voted on. Consensus was defined as ≥ 70% agreement. Key domains included: shared decision-making; flexibility in initiating or adjusting prophylaxis; structured patient education; self-administration; individualized dosing; emergency medication availability; and proactive follow-up, including specific guidance for women of childbearing age. Results: Ten core consensus statements were developed, achieving unanimous (100%, n = 9/10 statements) or strong (≥ 85%, n = 1/10 statements) agreement. It is recommended that the decision to initiate long-term prophylaxis be made through shared decision-making and that the decision made can and should be adjusted again in the further course of treatment. It is advisable to train patients in the technique of self-injection and to start therapy with lanadelumab with a 2-week injection interval in accordance with the product information. The injection interval should be adjusted to the individual patient, and all well-controlled patients should be offered the option of extending the interval without compromising the goal of complete disease control. Even and especially when the prophylaxis is well tolerated, emergency medication must not be neglected. Conclusion: These consensus statements provide a practical, expert-endorsed framework for implementing lanadelumab LTP in clinical practice emphasizing individualized treatment aligned with international guidelines and patient needs.Correspondence to:
Markus Magerl, MD, Charité – Universitätsmedizin Berlin, Institute of Allergology, Hindenburgdamm 27, 12203 Berlin, Germany
Email: [email protected]
Original
Prick tests and basophil activation tests in hypersensitivity to SARS-CoV-2 vaccines and components
Anna-Emilia Aust, Heidi Reh, and Bettina Wedi
Volume 10 (2026) p. 63 - 72
Abstract
Allergologie select, Vol. 10/2026 (63-72)
Prick tests and basophil activation tests in hypersensitivity to SARS-CoV-2 vaccines and components
Anna-Emilia Aust, Heidi Reh, and Bettina Wedi
Department of Dermatology and Allergy, Comprehensive Allergy Center, Hanover Medical School, Hannover, Germany
In collaboration with certified allergy centers (CACs) in Germany, a standardized procedure was developed for the allergologic evaluation of hypersensitivity reactions to SARS-CoV-2 vaccines. Our CAC prospectively evaluated 60 subjects with prior allergic reactions to SARS-CoV-2 vaccines or components. The investigations included a comprehensive medical history, in-vitro and skin tests. Prick tests were negative in all participants. Two positive basophil activation tests suggested a hypersensitivity to the component polyethylene glycol; however, no clinical relevance was found. Approximately 73% of the subjects reported symptoms during subsequent immunizations, which were milder than the reactions prior to the diagnostic procedures. Most index reactions manifested as non-specific symptoms. The results suggest that subsequent vaccinations following diagnostic procedures were well tolerated, underscoring the importance of careful allergological evaluation prior to vaccination.Correspondence to:
Professor Bettina Wedi, MD, Department of Dermatology and Allergy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
Email: [email protected]
Review
Decoding allergy in vitro: Challenges and clinical use of humoral and cellular methods
Bettina Wedi and Timo Buhl
Volume 10 (2026) p. 73 - 85
Abstract
Allergologie select, Vol. 10/2026 (73-85)
Decoding allergy in vitro: Challenges and clinical use of humoral and cellular methods
Bettina Wedi1 and Timo Buhl2
1Department of Dermatology and Allergy, Comprehensive Allergy Center, Hannover Medical School, Hanover, and 2Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany
In vitro assays are essential tools in diagnosing IgE-mediated allergic diseases and complement clinical history and skin testing across food, inhalant, venom, and drug allergies. This methodological review is intended for clinicians seeking a more detailed understanding of current laboratory-based allergy diagnostics. It summarizes current humoral and cellular diagnostic methods, including total IgE, singleplex and component-resolved specific IgE testing, multiplex IgE platforms, and functional cellular assays such as the basophil activation test and T-cell–based approaches. Humoral assays remain the quantitative foundation of molecular allergy diagnostics, while multiplex arrays broaden diagnostic scope and map sensitization profiles, although platform variability requires cautious interpretation. Cellular assays may add functional information in selected constellations but remain technically demanding, insufficiently standardized, and are best regarded as adjunctive tools in specialized or research settings, with evidence largely derived from selected cohorts. Additional areas – immunotherapy monitoring, mast cell disorders, contact allergy, and oncology – illustrate the broader methodological spectrum of in vitro methods. Persistent unmet needs include harmonization, validated reference standards, and robust interpretive frameworks. Disease-specific applications are discussed in companion articles in this issue.Correspondence to:
Timo Buhl, MD, University Medical Center Göttingen, Department of Dermatology, Venereology and Allergology, Robert Koch Str. 40, 37075 Göttingen, Germany
Email: [email protected]
