“…Second-line therapy after first-line doublet generates RRs of 5-20%, increases TTP to 4-6 months (Rothenberg et al, 2003;Grothey et al, 2004;Kemeny et al, 2004;Tournigand et al, 2004;Pfeiffer et al, 2006) and also adds to a prolonged OS. A recent review pointed out that OS was significantly correlated with the percentage of patients who received all three drugs .…”