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Positive Top Line Results from Confirmatory Efficacy Study for Proposed Biosimilar to Xolair® (omalizumab)
AlvotechAlvotech(US:ALVO) GlobeNewswire News Room·2025-06-25 08:00

Core Insights - Alvotech, Kashiv Biosciences, and Advanz Pharma announced positive topline results from a confirmatory efficacy study for AVT23, a proposed biosimilar to Xolair® (omalizumab) [1][2][3] Study Details - The study was a randomized, double-blind, multicenter trial assessing the efficacy, safety, and immunogenicity of AVT23 in patients with Chronic Spontaneous Urticaria (CSU) who were symptomatic despite H1 antihistamine treatment [2] - The primary endpoint was met, demonstrating equivalence in therapeutic outcomes and comparable safety between AVT23 and Xolair® [2] - A total of 600 patients were enrolled, with efficacy and safety evaluated in 400 patients receiving a confirmatory dose of 300 mg over a 24-week period [2] Company Statements - Joseph McClellan, Chief Scientific Officer of Alvotech, emphasized the importance of the study results for increasing global patient access to the biosimilar [3] - Dr. Sandeep Athalye, CEO of Kashiv, highlighted the advancement of their biosimilar pipeline and commitment to delivering cost-effective therapies [4] - Nick Warwick, Chief Medical Officer of Advanz Pharma, noted the milestone in expanding patient access to specialty medicines in key markets [4] Regulatory Progress - The UK Medicines and Healthcare Products Regulatory Agency (MHRA) has validated the marketing authorization application (MAA) for AVT23, with a filing to the European Medicines Agency (EMA) expected by year-end [5] Product Information - AVT23 is an investigational biosimilar to Xolair®, which is indicated for severe persistent allergic asthma, chronic rhinosinusitis with nasal polyps, and IgE-mediated food allergy [6] - The biosimilarity of AVT23 has not yet been established by regulatory authorities [6] Company Backgrounds - Alvotech focuses on developing and manufacturing biosimilar medicines, with a pipeline that includes nine disclosed biosimilar candidates targeting various therapeutic areas [9][10] - Kashiv BioSciences is a vertically integrated biopharmaceutical company with a robust infrastructure for R&D, clinical, manufacturing, and regulatory capabilities [16] - Advanz Pharma aims to improve patient lives through specialty, hospital, and rare disease medicines, with a commercial presence in over 90 countries [14]