First-Line Tislelizumab Plus Chemotherapy for Esophageal Squamous Cell Carcinoma with Programmed Death-Ligand 1 Expression ≥ 1%: A Retrospective Analysis of RATIONALE-306.

ABSTRACT:

Introduction

The United States Food and Drug Administration Oncologic Drugs Advisory Committee voted (September 2024) against the use of programmed cell death protein-1 inhibitors for first-line treatment of advanced or metastatic unresectable esophageal squamous cell carcinoma (ESCC) with a programmed death-ligand 1 (PD-L1) expression Tumor Area Positivity (TAP) score < 1% or combined positive score < 1 due to an unfavorable benefit-risk profile observed across the phase 3 CheckMate 648, KEYNOTE-590, and RATIONALE-306 trials. Therefore, we conducted a retrospective analysis of RATIONALE-306 to evaluate the efficacy and safety of tislelizumab plus investigator-chosen chemotherapy (ICC) versus placebo plus ICC in patients with advanced or metastatic unresectable ESCC and a PD-L1 TAP

SUBMITTER: Xu J 

PROVIDER: S-EPMC12006250 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature