EFS at 36 months in key subgroups. EFS rate was estimated per Kaplan-Meier method at 36 months among baseline patient and disease characteristics in response-evaluable patients (n = 37). Lower CI and upper CI were 95% confidence limits of EFS rate from Kaplan-Meier estimates. The dotted vertical line presents the point estimate of overall population. ABC, activated B cell; C-MYC, myc proto-oncogene protein; ECOG, Eastern Cooperative Oncology Group; GCB, germinal-center type B cell; PD, progressive disease; PR, partial response; SD, stable disease.