Marcus Maurer, Thomas B. Casale, Sarbjit S. Saini, Moshe Ben-Shoshan, Elizabeth Laws, Jennifer Maloney, Deborah Bauer, Allen Radin, Melanie Makhija
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This analysis explores the impact of dupilumab on CSU signs and symptoms and serum IgE levels in patients from LIBERTY-CSU CUPID Study A with serum total IgE above and below 100 IU/mL at baseline.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>Patients with H1-antihistamine-refractory CSU received dupilumab (<i>n</i> = 70) or placebo (<i>n</i> = 68) for 24 weeks. Efficacy endpoints were change from baseline to weeks 12 and 24 in serum total IgE levels, Itch Severity Score over 7 days (ISS7), Urticaria Activity Score over 7 days (UAS7), and Hives Severity Score over 7 days (HSS7) in dupilumab- or placebo-treated patients with serum total IgE above and below 100 IU/mL at baseline.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>Dupilumab treatment significantly reduced median (interquartile range) IgE levels at week 12 [dupilumab: −31.9% (−41.9; −22.6); placebo: −6.3% (−21.3; 14.9)] and week 24 [dupilumab: −48.2% (−56.8; − 39.5); placebo: − 6.3% (−34.5; 14.8)]. Similar IgE reductions relative to baseline were observed in dupilumab-treated patients regardless of baseline IgE level. Dupilumab treatment improved ISS7, UAS7, and HSS7 over 12 and 24 weeks, regardless of baseline serum IgE level (interaction <i>p</i> ≥ 0.59 for all treatment by subgroup comparisons), with weak correlations (<i>r</i> < 0.2) observed between IgE level changes and ISS7, UAS7, and HSS7 outcomes.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>Dupilumab significantly improved CSU signs and symptoms and reduced serum IgE, regardless of baseline IgE levels. In the current analysis, baseline total IgE had no predictive value as a dupilumab treatment response biomarker in CSU. Downregulation of IgE, a key mediator of mast cell activation and histamine release, may at least partially explain the effectiveness of dupilumab in reducing CSU signs and symptoms.</p><h3 data-test=\"abstract-sub-heading\">Trial Registration</h3><p>ClinicalTrials.gov Identifier: NCT04180488.</p>","PeriodicalId":11186,"journal":{"name":"Dermatology and Therapy","volume":"41 1","pages":""},"PeriodicalIF":3.5000,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dupilumab Reduces Urticaria Activity, Itch, and Hives in Patients with Chronic Spontaneous Urticaria Regardless of Baseline Serum Immunoglobulin E Levels\",\"authors\":\"Marcus Maurer, Thomas B. Casale, Sarbjit S. Saini, Moshe Ben-Shoshan, Elizabeth Laws, Jennifer Maloney, Deborah Bauer, Allen Radin, Melanie Makhija\",\"doi\":\"10.1007/s13555-024-01231-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Introduction</h3><p>In chronic spontaneous urticaria (CSU), interleukin (IL)-4 and IL-13 may promote mast cell activation directly via IL-4 receptor expression, or indirectly via upregulated immunoglobulin E (IgE) production. Dupilumab significantly improved CSU signs and symptoms in the phase 3, randomized, placebo-controlled LIBERTY-CSU CUPID Study A. This analysis explores the impact of dupilumab on CSU signs and symptoms and serum IgE levels in patients from LIBERTY-CSU CUPID Study A with serum total IgE above and below 100 IU/mL at baseline.</p><h3 data-test=\\\"abstract-sub-heading\\\">Methods</h3><p>Patients with H1-antihistamine-refractory CSU received dupilumab (<i>n</i> = 70) or placebo (<i>n</i> = 68) for 24 weeks. Efficacy endpoints were change from baseline to weeks 12 and 24 in serum total IgE levels, Itch Severity Score over 7 days (ISS7), Urticaria Activity Score over 7 days (UAS7), and Hives Severity Score over 7 days (HSS7) in dupilumab- or placebo-treated patients with serum total IgE above and below 100 IU/mL at baseline.</p><h3 data-test=\\\"abstract-sub-heading\\\">Results</h3><p>Dupilumab treatment significantly reduced median (interquartile range) IgE levels at week 12 [dupilumab: −31.9% (−41.9; −22.6); placebo: −6.3% (−21.3; 14.9)] and week 24 [dupilumab: −48.2% (−56.8; − 39.5); placebo: − 6.3% (−34.5; 14.8)]. Similar IgE reductions relative to baseline were observed in dupilumab-treated patients regardless of baseline IgE level. Dupilumab treatment improved ISS7, UAS7, and HSS7 over 12 and 24 weeks, regardless of baseline serum IgE level (interaction <i>p</i> ≥ 0.59 for all treatment by subgroup comparisons), with weak correlations (<i>r</i> < 0.2) observed between IgE level changes and ISS7, UAS7, and HSS7 outcomes.</p><h3 data-test=\\\"abstract-sub-heading\\\">Conclusions</h3><p>Dupilumab significantly improved CSU signs and symptoms and reduced serum IgE, regardless of baseline IgE levels. In the current analysis, baseline total IgE had no predictive value as a dupilumab treatment response biomarker in CSU. 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Dupilumab Reduces Urticaria Activity, Itch, and Hives in Patients with Chronic Spontaneous Urticaria Regardless of Baseline Serum Immunoglobulin E Levels
Introduction
In chronic spontaneous urticaria (CSU), interleukin (IL)-4 and IL-13 may promote mast cell activation directly via IL-4 receptor expression, or indirectly via upregulated immunoglobulin E (IgE) production. Dupilumab significantly improved CSU signs and symptoms in the phase 3, randomized, placebo-controlled LIBERTY-CSU CUPID Study A. This analysis explores the impact of dupilumab on CSU signs and symptoms and serum IgE levels in patients from LIBERTY-CSU CUPID Study A with serum total IgE above and below 100 IU/mL at baseline.
Methods
Patients with H1-antihistamine-refractory CSU received dupilumab (n = 70) or placebo (n = 68) for 24 weeks. Efficacy endpoints were change from baseline to weeks 12 and 24 in serum total IgE levels, Itch Severity Score over 7 days (ISS7), Urticaria Activity Score over 7 days (UAS7), and Hives Severity Score over 7 days (HSS7) in dupilumab- or placebo-treated patients with serum total IgE above and below 100 IU/mL at baseline.
Results
Dupilumab treatment significantly reduced median (interquartile range) IgE levels at week 12 [dupilumab: −31.9% (−41.9; −22.6); placebo: −6.3% (−21.3; 14.9)] and week 24 [dupilumab: −48.2% (−56.8; − 39.5); placebo: − 6.3% (−34.5; 14.8)]. Similar IgE reductions relative to baseline were observed in dupilumab-treated patients regardless of baseline IgE level. Dupilumab treatment improved ISS7, UAS7, and HSS7 over 12 and 24 weeks, regardless of baseline serum IgE level (interaction p ≥ 0.59 for all treatment by subgroup comparisons), with weak correlations (r < 0.2) observed between IgE level changes and ISS7, UAS7, and HSS7 outcomes.
Conclusions
Dupilumab significantly improved CSU signs and symptoms and reduced serum IgE, regardless of baseline IgE levels. In the current analysis, baseline total IgE had no predictive value as a dupilumab treatment response biomarker in CSU. Downregulation of IgE, a key mediator of mast cell activation and histamine release, may at least partially explain the effectiveness of dupilumab in reducing CSU signs and symptoms.
期刊介绍：
Dermatology and Therapy is an international, open access, peer-reviewed, rapid publication journal (peer review in 2 weeks, published 3–4 weeks from acceptance). The journal is dedicated to the publication of high-quality clinical (all phases), observational, real-world, and health outcomes research around the discovery, development, and use of dermatological therapies. Studies relating to diagnosis, pharmacoeconomics, public health and epidemiology, quality of life, and patient care, management, and education are also encouraged.
Areas of focus include, but are not limited to all clinical aspects of dermatology, such as skin pharmacology; skin development and aging; prevention, diagnosis, and management of skin disorders and melanomas; research into dermal structures and pathology; and all areas of aesthetic dermatology, including skin maintenance, dermatological surgery, and lasers.
The journal is of interest to a broad audience of pharmaceutical and healthcare professionals and publishes original research, reviews, case reports/case series, trial protocols, and short communications. Dermatology and Therapy will consider all scientifically sound research be it positive, confirmatory or negative data. Submissions are welcomed whether they relate to an International and/or a country-specific audience, something that is crucially important when researchers are trying to target more specific patient populations. This inclusive approach allows the journal to assist in the dissemination of quality research, which may be considered of insufficient interest by other journals. The journal appeals to a global audience and receives submissions from all over the world.
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