Daiichi Sankyo announced that the first patient has been dosed in the global, randomized TROPION-Lung07 phase 3 trial evaluating datopotamab deruxtecan (Dato-DXd) in combination with pembrolizumab with or without platinum chemotherapy, in patients with previously untreated advanced or metastatic non-squamous non-small cell lung cancer (NSCLC) with PD-L1 expression less than 50% (TPS<50%) and without actionable genomic alterations. Datopotamab deruxtecan is a specifically engineered TROP2 directed DXd antibody drug conjugate (ADC) being jointly developed by Daiichi Sankyo and AstraZeneca. Among patients with NSCLC, nearly half are diagnosed at an advanced stage and generally have a poor prognosis.1,2,3 While first-line treatment with pembrolizumab or other checkpoint inhibitors, with or without chemotherapy, has improved outcomes in patients with NSCLC without actionable genomic alterations, disease progression still occurs in the majority of patients.4,5.TROPION-Lung07 is the third clinical trial collaboration and supply agreement between Daiichi Sankyo and AstraZeneca with a subsidiary of Merck & Co.

Inc., Rahway, NJ., USA to evaluate the combination of datopotamab deruxtecan and pembrolizumab. Previous clinical trial collaboration agreements were entered in October 2021 for the TROPION-Lung08 phase 3 trial and May 2020 for the TROPION-Lung02 phase 1b trial.