ASH Clinical News FINAL_ACN_3.14_FULL_ISSUE_DIGITAL | Page 48

Written in Blood (conducted in 147 evaluable patients), only TP53 mutations remained statisti- cally significantly associated with poorer OS and PFS: • hazard ratio (HR) for PFS = 6.2 (95% CI 2.6-14.9; p<0.0001) • HR for OS = 6.8 (95% CI 3.3-14.5; p<0.001) Combined MIPI (MIPI-c) high-risk (defined as high-risk MIPI with Ki67 expression) was also significantly associated with poorer PFS and cumula- tive incidence of relapse (CIR; HR=2.2; 95% CI 1.2-4.0; p=0.01 for PFS and HR=2.6; 95% CI 1.4-4.9; p=0.003 for CIR). When the authors compared out- comes between patients with (n=20) and without (n=156) TP53 mutations, they confirmed the poor prognosis conferred by TP53 mutations: • median OS: 1.8 years vs. not reached (p<0.001) • median PFS: 0.9 years vs. 10.2 years (p<0.001) • median time to relapse: 1.0 year vs. 12.3 years (p>0.001)