New PROSPER Data Demonstrate Real-World Impact of Mogamulizumab on Symptoms and Health-Related Quality of Life in Mycosis Fungoides and Sézary Syndrome
PRINCETON, N.J., June 29, 2026 (GLOBE NEWSWIRE) -- Kyowa Kirin, Inc., a wholly owned subsidiary of Kyowa Kirin Co. Ltd (TSE: 4151), today announced positive results from PROSPER, a real-world observational study of mogamulizumab in adults with mycosis fungoides (MF) or Sézary syndrome (SS). In the study, patients reported clinically meaningful improvements in skin symptoms (itch, flaking, and redness) and body temperature regulation as early as week 4, with improvements in sleep and health-rel
PRINCETON, N.J., June 29, 2026 (GLOBE NEWSWIRE) -- Kyowa Kirin, Inc., a wholly owned subsidiary of Kyowa Kirin Co. Ltd (TSE: 4151), today announced positive results from PROSPER, a real-world observational study of mogamulizumab in adults with mycosis fungoides (MF) or Sézary syndrome (SS). In the study, patients reported clinically meaningful improvements in skin symptoms (itch, flaking, and redness) and body temperature regulation as early as week 4, with improvements in sleep and health-related quality of life (HRQoL) starting at week 12. Improvements were sustained throughout the study period, with additional gains in HRQoL reported through week 48.
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