Han et al. [11] reported a genotype-pharmacokinetics association analysis among irinotecan-treated Korean NSCLC patients, and the UGT1A1*6/*6, UGT1A7*3/*3, and UGT1A9-118(T)9/9 genotypes were associated with significantly lower area under the time-concentration curve ratios of SN-38G to SN-38. Here, UGT1A7 is linked to non-small cell lung carcinoma.