Journal article

FIR: Efficacy, Safety, and Biomarker Analysis of a Phase II Open-Label Study of Atezolizumab in PD-L1-Selected Patients With NSCLC

David R Spigel, Jamie E Chaft, Scott Gettinger, Bo H Chao, Luc Dirix, Peter Schmid, Laura QM Chow, Rodney J Hicks, Larry Leon, Jill Fredrickson, Marcin Kowanetz, Alan Sandler, Roel Funke, Naiyer A Rizvi

JOURNAL OF THORACIC ONCOLOGY | ELSEVIER SCIENCE INC | Published : 2018

Abstract

INTRODUCTION: The FIR phase II study (NCT01846416) evaluated the efficacy and safety of anti-programmed death-ligand 1 (PD-L1) atezolizumab in advanced NSCLC selected by tumor cell (TC) or tumor-infiltrating immune cell (IC) PD-L1 expression. METHODS: Patients with PD-L1 TC2/3 (PD-L1 staining on ≥5% of TC) or IC2/3 tumors (PD-L1 staining on ≥5% of IC; determined by SP142 PD-L1 immunohistochemistry assay) with paired fresh and archival histology samples were recruited into cohort 1 (chemotherapy-naive/>6 months between adjuvant chemotherapy and recurrence), cohort 2 (≥ second-line without brain metastases), or cohort 3 (≥ second-line with treated brain metastases). Patients received 1200 mg a..

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