Kaplan-Meier estimates of the distribution of progression-free survival and overall survival for all 56 patients included in the study.

(A) Progression-free survival (PFS). (B) Overall survival (OAS). The dotted lines show the 95% confidence limits of the estimated survival probabilities. The median PFS was 16 months. The median OAS time could not be calculated, since the observed death was after 16 months of follow-up with a corresponding estimated survival probability of 55%.