PFS and OS landmark analysis of patients treated for Tγδ LGLL. Kaplan-Meier curves showing 6-month landmark analysis for PFS (A) and OS (B) of Tγδ LGLL patients achieving at least a partial response to first-line therapy (Responders) compared with nonresponding patients (Non-responders) at 6 months from the start of therapy. Curves were compared by log-rank test.