Abstract:
:We describe results from IMmotion150, a randomized phase 2 study of atezolizumab (anti-PD-L1) alone or combined with bevacizumab (anti-VEGF) versus sunitinib in 305 patients with treatment-naive metastatic renal cell carcinoma. Co-primary endpoints were progression-free survival (PFS) in intent-to-treat and PD-L1+ populations. Intent-to-treat PFS hazard ratios for atezolizumab + bevacizumab or atezolizumab monotherapy versus sunitinib were 1.0 (95% confidence interval (CI), 0.69-1.45) and 1.19 (95% CI, 0.82-1.71), respectively; PD-L1+ PFS hazard ratios were 0.64 (95% CI, 0.38-1.08) and 1.03 (95% CI, 0.63-1.67), respectively. Exploratory biomarker analyses indicated that tumor mutation and neoantigen burden were not associated with PFS. Angiogenesis, T-effector/IFN-γ response, and myeloid inflammatory gene expression signatures were strongly and differentially associated with PFS within and across the treatments. These molecular profiles suggest that prediction of outcomes with anti-VEGF and immunotherapy may be possible and offer mechanistic insights into how blocking VEGF may overcome resistance to immune checkpoint blockade.
journal_name
Nat Medjournal_title
Nature medicineauthors
McDermott DF,Huseni MA,Atkins MB,Motzer RJ,Rini BI,Escudier B,Fong L,Joseph RW,Pal SK,Reeves JA,Sznol M,Hainsworth J,Rathmell WK,Stadler WM,Hutson T,Gore ME,Ravaud A,Bracarda S,Suárez C,Danielli R,Gruenwald V,Chdoi
10.1038/s41591-018-0053-3subject
Has Abstractpub_date
2018-06-01 00:00:00pages
749-757issue
6eissn
1078-8956issn
1546-170Xpii
10.1038/s41591-018-0053-3journal_volume
24pub_type
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