GlaxoSmithKline's Ultra-Long-Acting Antibody Drug Gains Additional Approval in China

Stock News04-03

On April 3, the National Medical Products Administration (NMPA) website indicated that a new indication for GlaxoSmithKline PLC's "Depemokimab" has been approved for market entry in China, for the treatment of chronic rhinosinusitis with nasal polyps. Depemokimab is a novel anti-interleukin-5 (IL-5) monoclonal antibody developed by GSK, characterized by an extended half-life, high binding affinity, and high potency. It is the world's first ultra-long-acting IL-5 biologic administered just twice a year. Depemokimab received its first global approval in the United States in December 2025 for the treatment of eosinophilic asthma. It was first introduced to the Chinese market in March 2026. This latest approval marks the second indication for Depemokimab in China. GSK possesses a robust and industry-leading respiratory product pipeline. The newly approved Depemokimab is the successor to the once-monthly IL-5 inhibitor "Mepolizumab" (marketed as Nucala®), a blockbuster drug that generated $2.651 billion in revenue in 2025, and is poised to become the next market leader.

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