a trend toward significanceP =0.051
A trend toward significance of worsening ORR (RR 0.86, P =0.051) was evident.
A trend toward significance of worsening ORR (RR 0.86, P =0.051) was evident.
25 , 27 , 47 One study involving 83 patients with activating EGFR mutations showed that patients with an increasing trend for T790M quantity from pretreatment to posttreatment of EGFR-TKIs had superior PFS and OS, compared to patients with a decreasing trend of T790M quantity. 44 , 48 Thanks to recent advances in the era of third-generation EGFR-TKIs such as osimertinib, it is better understood that patients with acquired T790M mutation will benefit more from osimertinib treatment than patients without T790M mutation.