Core Insights - The FDA has approved Wayrilz (rilzabrutinib) as the first BTK inhibitor for adults with persistent or chronic immune thrombocytopenia (ITP) who have not responded adequately to previous treatments [1][11] - The approval is based on the LUNA 3 phase 3 study, which demonstrated significant improvements in platelet counts and other ITP symptoms [1][6] Company Overview - Sanofi is committed to addressing unmet patient needs through innovative therapies, with Wayrilz representing a significant advancement in the treatment of ITP [3][11] - The company utilizes its TAILORED COVALENCY® technology to selectively inhibit BTK, which plays a critical role in immune-mediated disease processes [11] Study Details - The LUNA 3 study involved 202 adult patients and showed that 64% of patients on Wayrilz achieved a platelet count response at 12 weeks compared to 32% in the placebo group [3][10] - Patients on Wayrilz reported a 10.6-point improvement in health-related quality of life measures, while the placebo group showed a 2.3-point increase [4] Treatment Mechanism - Wayrilz functions as a novel oral, reversible BTK inhibitor that targets multiple pathways in the immune system, addressing the root causes of ITP through multi-immune modulation [2][11] - This approach is expected to provide a new treatment option for patients who have not responded to traditional therapies [5][6] Regulatory Status - Wayrilz has received Fast Track and Orphan Drug Designations from the FDA for ITP, and similar designations in Japan and the EU [8] - The drug is also under regulatory review for ITP in the EU and China, indicating potential for broader market access [8] Patient Support - Sanofi offers the HemAssist patient support program to assist patients with treatment navigation, insurance coverage, and financial assistance [9]