The global impact of the COVID-19 pandemic on the management and course of chronic urticaria

Introduction: the COVID-19 pandemic dramatically disrupts health care around the globe. The impact of the pandemic on chronic urticaria (CU) and its management are largely unknown. Aim: to understand how CU patients are affected by the COVID-19 pandemic; how specialists alter CU patient management; and the course of CU in patients with COVID-19. Materials and methods: our cross-sectional, international, questionnaire-based, multicenter UCARE COVID-CU study assessed the impact of the pandemic on patient consultations, remote treatment, changes in medications, and clinical consequences. Results: the COVID-19 pandemic severely impairs CU patient care, with less than 50% of the weekly numbers o…

Travel‐associated infectious skin diseases

Efficacy and safety of omalizumab in patients with chronic urticaria who exhibit IgE against thyroperoxidase

Background A subgroup of patients with chronic spontaneous urticaria (CU) exhibits IgE antibodies directed against autoantigens, such as thyroperoxidase (TPO). We conducted this study to investigate whether such patients with CU with IgE against TPO benefit from treatment with omalizumab, a humanized anti-IgE mAb licensed for the treatment of severe persistent allergic (IgE-mediated) asthma. Objectives We sought to assess the efficacy of omalizumab treatment in patients with CU with IgE autoantibodies against TPO. Methods In this multicenter, randomized, double-blind, placebo-controlled study patients with CU (male/female, 18-70 years of age) with IgE autoantibodies against TPO who had pers…

15. Mainzer Allergie-Workshop 2003

Allergen-Immuntherapie in der aktuellen COVID-19-Pandemie – ein Positionspapier von ARIA, EAACI, AeDA, GPA und DGAKI (Kurzversion) – Positionspapier der deutschen ARIA-GruppeA in Kooperation mit der österreichischen ARIA-GruppeB, der schweizerischen ARIA-GruppeC, dem Ärzteverband Deutscher Allergologen (AeDA)D, der Deutschen Gesellschaft für Allergologie und Klinische Immunologie (DGAKI)E und der Gesellschaft für Pädiatrische Allergologie (GPA)F in Kooperation mit der AG Klinische Immunologie, Allergologie und Umweltmedizin der DGHNO-KHCG und der Europäischen Akademie für Allergologie und Klinische Immunologie (EAACI)H

Omalizumab is effective in symptomatic dermographism-results of a randomized placebo-controlled trial.

Crosstalk of regulatory T cells and tolerogenic dendritic cells prevents contact allergy in subjects with low zone tolerance

Background Allergic contact dermatitis is one of the most common occupational diseases. A main protective mechanism in those who do not develop allergic contact dermatitis is tolerance induction by repeated exposure to low doses of contact allergen, which is termed low zone tolerance (LZT). The mechanisms that determine the tolerance induction in subjects with LZT are still elusive. Objective We performed analysis of the role of CD4 + CD25 + forkhead box protein 3 (FOXP3)–positive regulatory T (Treg) cells and dendritic cells (DCs) in mice with LZT. Methods Mechanisms of tolerance induction were analyzed in a murine model of LZT by using FOXP3 and IL-10 reporter mice, as well as mice that a…

Definition, aims, and implementation of GA [sup] 2 LEN/HAEi Angioedema Centers of Reference and Excellence

This document summarizes the aims of GA2 LEN/HAEi Angioedema Centers of Reference and Excellence (ACAREs) and elaborates the requirements that ACAREs must fulfill to become certified. It also provides (see Appendix S1) background information on GA2LEN and HAEi, including HAEi member organizations and regional patient advocates, on why we need an Angioedema Center of Reference and Excellence (ACARE) program and network, and on the accreditation and certification process, governance and funding, and on the interaction with other GA2LEN networks of centers of reference and excellence. The protocols, aims, requirements, and provisions related to becoming a certified CARE are based on (a) the ex…

Omalizumab in patients with symptomatic chronic idiopathic/spontaneous urticaria despite standard combination therapy

Patients with chronic idiopathic urticaria/chronic spontaneous urticaria (CIU/CSU) often continue to experience symptoms despite receiving standard-of-care therapy with H1-antihistamines along with 1 or more add-on therapies.We sought to evaluate the safety and efficacy of 24 weeks of treatment with omalizumab in patients with persistent CIU/CSU despite treatment with H₁-antihistamines at up to 4 times the approved dose plus H₂-antihistamines, leukotriene receptor antagonists, or both.In this phase III study patients were randomized to receive 6 subcutaneous injections at 4-week intervals of either 300 mg of omalizumab or placebo, followed by a 16-week observation period. The primary object…

Biomarkers and clinical characteristics of autoimmune chronic spontaneous urticaria: Results of the PURIST Study.

Background: Autoimmune chronic spontaneous urticaria (aiCSU) is an important subtype of chronic spontaneous urticaria (CSU) in which functional IgG autoantibodies to IgE or its high-affinity receptor (FcεRI) induces mast cell degranulation and subsequent symptom development. However, it has not been tightly characterized. This study aimed to better define the clinical and immunological features and to explore potential biomarkers of aiCSU. Methods: This was a multinational, multicenter study of 182 CSU patients. The clinical features studied included: urticaria activity and impact (UAS7 and quality of life); autologous serum skin test (ASST); IgG anti-FcεRI and IgG anti-IgE; IgG-anti-thyrop…

17. Mainzer Allergie-Workshop