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On July 7, 2025,
experienced a significant drop of 64.55% in pre-market trading, marking a dramatic shift in investor sentiment towards the biopharmaceutical company.Jasper Therapeutics recently reported updated clinical data from its studies on briquilimab, a treatment for Chronic Spontaneous Urticaria (CSU) and Chronic Inducible Urticaria (CIndU). The data showed an 89% complete response rate in the briquilimab trials for CSU, highlighting the drug's efficacy and safety. However, operational challenges have been noted, which could be contributing to the stock's decline.
The company's BEACON Phase 1b/2a study of briquilimab in adult participants with chronic spontaneous urticaria also reported promising results. Despite the positive clinical data, the market reaction suggests that investors may be concerned about the operational hurdles and the overall trajectory of the company's development pipeline.

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