Bruton tyrosine kinase inhibitor

Mechanism

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FDA Accepts NDA for Tirabrutinib in Relapsed/Refractory Primary CNS Lymphoma

The FDA has accepted for review a New Drug Application for tirabrutinib, a Bruton tyrosine kinase inhibitor, for relapsed or refractory primary central nervous system lymphoma. The application is based on phase 2 PROSPECT trial data showing an overall response rate of 67% and complete response rate of 44%. The target action date is December 18, 2026.