Tertiary Lymphoid Structures Validated as Biomarker

Abstract New trial data confirm the potential of tertiary lymphoid structures to serve as a predictive biomarker of responsiveness to an immune checkpoint inhibitor–based drug regimen. According to study results presented at the Society for Immunotherapy of Cancer Annual Meeting, treatment with a PD-L1–targeted agent plus a multikinase inhibitor with anti-angiogenic activity yielded clinical responses in patients with TLS-positive tumors, even in cancer types typically considered resistant to checkpoint inhibitors.