Keymed Biosciences announced the National Medical Products Administration (the "NMPA") of China has recently approved the supplemental New Drug Application (the "sNDA") of Stapokibart (anti-IL-4Rα monoclonal antibody, trade name: Kangyueda (康悦达), for the treatment of seasonal allergic rhinitis.

The approval is based on a multi-center, randomized, double-blind, placebo-controlled phase III study to confirm the efficacy and safety of Stapokibart injection in treatment of adult patients with seasonal allergic rhinitis who are poorly controlled with nasal corticosteroids or other therapies.

The study findings demonstrate that during the pollen season, in comparison with the standard treatment group, which consists of nasal spray hormones combined with antihistamine drugs, the administration of Stapokibart for two weeks effectively controls the typical nasal allergic symptoms of patients, including runny nose, nasal congestion, nasal itching, and sneezing. The least-squares mean (LSMean) of the inter-group difference is -1.3, and its 95% confidence interval (CI) is also -1.3, indicating a highly significant statistical difference (P = 0.0008).

This difference far exceeds the minimal clinically important difference (MCID) of 0.23, clearly demonstrating substantial clinical benefits. Moreover, Stapokibart can effectively alleviate ocular allergic symptoms such as eye itching or burning, eye tearing or watering, and eye redness. It comprehensively enhances the quality of life of patients and exhibits excellent safety.