nearly significantP=0.07
As shown in Figure 3A , gefitinib-treated patients who tested positive for ctDNA (ctDNA+) at baseline exhibited a nearly significant reduction in PFS compared to those with a negative ctDNA status (ctDNA-) [mPFS: 7.6 vs. 15.9 months, HR (95% CI): 2.66 (0.91–7.79); P=0.07].