Merck Breakthrough Status for Lung Cancer Drug
FDA has granted Merck a breakthrough therapy designation for sacituzumab tirumotecan (sac-TMT) and its use in treating patients with advanced or metastatic nonsquamous non-small cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) mutations (exon 19 deletion [19del] or exon 21 L858R) whose disease progressed on or after tyrosine kinase inhibitor and platinum-based chemotherapy. Merck says the investigational trophoblast cell-surface antigen 2-directed antibody drug conjugate is being developed in collaboration with Kelun-Biotech.
The designation is based on data from a Phase 2 expansion cohort of a Phase 1/2 study evaluating sac-TMT in patients with EGFR-mutated NSCLC, and data from a Phase 2 study in the same patient population who have been treated with at least two lines of prior therapy.
Merck says it is “rapidly advancing the global clinical development program evaluating sac-TMT as a monotherapy and in combination with Keytruda (pembrolizumab) with 10 ongoing Phase 3 studies across various solid tumors.”