Sichuan Kelun-Biotech Biopharmaceutical Co., Ltd. has announced that its TROP2-directed antibody-drug conjugate, sacituzumab tirumotecan (sac-TMT, also known as SKB264/MK-2870), has received marketing approval from the National Medical Products Administration (NMPA) for its third indication. The newly approved use is for the treatment of adult patients with EGFR mutant-positive locally advanced or metastatic non-squamous non-small cell lung cancer (NSCLC) who have progressed after EGFR-tyrosine kinase inhibitor (TKI) therapy. This approval is based on positive results from the Phase III OptiTROP-Lung04 study, which demonstrated significant improvements in overall survival and progression-free survival compared to platinum-based chemotherapy in this patient population. No grant or funding information involving multiple organizations was mentioned.