The purpose of this study is to evaluate sacituzumab tirumotecan versus chemotherapy (docetaxel or pemetrexed) for the treatment of previously-treated non-small cell lung cancer (NSCLC) with exon 19del or exon 21 L858R EGFR mutations (hereafter referred to as EGFR mutations or EGFR-mutated) or any of the follow genomic alterations: ALK gene rearrangements, ROS1 rearrangements, BRAF V600E mutations, NTRK gene fusions, MET exon 14 skipping mutations, RET rearrangements, or less common EGFR point mutations of exon 20 S768I, exon 21 L861Q, or exon 18 G719X mutations. The primary hypotheses are that sacituzumab tirumotecan is: (1) superior to chemotherapy with respect to progression-free survival (PFS) per RECIST 1.1 as assessed by BICR in NSCLC with EGFR mutations; and (2) superior to chemotherapy with respect to overall survival (OS) in NSCLC with EGFR mutations.
Phase 3 trials are pivotal studies with large patient populations (hundreds to thousands) designed to prove efficacy and safety for FDA submission. A successful Phase 3 readout is typically the last major hurdle before a New Drug Application (NDA) or BLA filing.
Currently recruiting: the trial is enrolling patients. A data readout is not expected until after enrollment closes and the follow-up period is complete.
Merck & Co (MRK) is the sponsoring company for this trial. BiotechSign currently grades this company F (35/100) based on composite catalyst signals across its full pipeline. This trial is one data point in that overall catalyst picture.