Hereditary Angioedema Consensus 2010

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ALLERGY, ASTHMA & CLINICAL IMMUNOLOGY

EDITORIAL

Open Access

Hereditary Angioedema Consensus 2010 Tom Bowen Editorial The 2010 International Consensus Algorithm for the Diagnosis, Therapy and Management of Hereditary Angioedema was arrived at during the Canadian Hereditary Angioedema Network (CHAEN)/Réseau Canadien d’angioédème héréditaire (RCAH) second meeting held May 15th/16th, 2010, Toronto, Canada and was cosponsored by CHAEN/RCAH, the Canadian Society of Allergy and Clinical Immunology, and the University of Calgary and was funded through an unrestricted educational grant from CSL Behring. This is the third international consensus and is meant to be a living document requiring continual updating and rethinking. The first consensus conference was scheduled for Toronto, Ontario, Canada in April 2003 but was SARSed out. That conference was rescheduled and held in Toronto in October 2003 and published in 2004. The next consensus was again held in Toronto Canada in 2006 and rediscussed in Budapest in 2007 and published in 2008. This third consensus conference was in danger of being ashed out from the volcanic activity in Iceland making planning of such meetings a challenge. Rare disorders such as Hereditary Angioedema require international collaboration to push ahead with progress in the management of the disorders. The Hungarian group under Dr. Henriette Farkas and the Italian group under Dr. Marco Cicardi have certainly led the way in organizing these essential get-togethers. Patient Group participation in these discussions has been strongly encouraged and the Consensus Algorithms have been signed off by various National Patient Organizations. The patients should decide how they wish to be treated. I usually bore audiences with my motto: It can be done - It must be done for the sake of our patients. This concept continues in this third consensus algorithm development. We have moved from 2003 from only a few controlled trials in prophylaxis and treatment in HAE-Types I and II to now several clinical trials in various stages of publication. Prophylaxis options have moved from anti-fibrinolytics and androgens Correspondence: [email protected] Department of Medicine and Paediatrics, University of Calgary, Calgary, Alberta, Canada

to include consideration of plasma-derived C1-inhibitor (pdC1INH) prophylaxis. Therapy options have broadened from pdC1INH to now include bradykinin receptor antagonist Icatibant and kallikrein antagonist Ecallantide and recombinant C1INH under clinical trial. These phase III clinical trials will move this current consensus algorithm approach to evidence-based approach and Dr. Marco Cicardi is moving this along with an important meeting in Italy in September 2010. Clinical trials in rare disorders are difficult at the best of times but exceptionally difficult in HAE where swelling events are unpredictable and require quick intervention at all hours of day, night, weekends. These clinical trials are difficult for patients and clinic staff alike and it is to the credit of the Patients and the