A first-in-human, phase 1 study of BGB-15025 (hematopoietic progenitor kinase 1 [HPK1] inhibitor) as monotherapy and in combination (combo) with tislelizumab (TIS; anti-PD-1 antibody) in patients (pts) with advanced solid tumors (ST)

RATIONALE-305 (NCT03777657) is a randomized, double-blind, placebo-controlled, global Phase 3 study of tislelizumab combined with platinum and fluoropyrimidine chemotherapy compared to placebo combined with platinum and fluoropyrimidine chemotherapy as a first-line treatment for patients with advanced unresectable or metastatic gastric or gastroesophageal junction adenocarcinoma (GC/GEJC).

RATIONALE-305 (NCT03777657) is a randomized, double-blind, placebo-controlled, global Phase 3 study of tislelizumab combined with platinum and fluoropyrimidine chemotherapy compared to placebo combined with platinum and fluoropyrimidine chemotherapy as a first-line treatment for patients with advanced unresectable or metastatic gastric or gastroesophageal junction adenocarcinoma (GC/GEJC).