CT-P39: An Omalizumab Biosimilar

CT-P39 [Omlyclo^® (omalizumab-igec)] is a biosimilar of the reference monoclonal anti-immunoglobulin E (IgE) antibody omalizumab. It is approved for use in all indications for which reference omalizumab is approved, including allergic asthma, chronic rhinosinusitis with nasal polyps, chronic spontaneous urticaria (CSU) and (in the USA) IgE-mediated food allergy. CT-P39 has similar physicochemical and pharmacodynamic properties to those of reference omalizumab, and the pharmacokinetic equivalence and comparability of the agents has been demonstrated in healthy volunteers and patients with CSU, respectively. CT-P39 demonstrated clinical efficacy equivalent to that of reference omalizumab in patients with CSU and was generally well tolerated in this population. The tolerability, safety and immunogenicity profiles of CT-P39 were similar to those of reference omalizumab, and switching from reference omalizumab to CT-P39 appeared to have no impact on efficacy or safety. The role of reference omalizumab in the management of allergic asthma, chronic rhinosinusitis with nasal polyps, CSU and IgE-mediated food allergy is well established and CT-P39 provides an effective alternative for patients requiring omalizumab therapy.