Journal
ANTICANCER RESEARCH
Volume 41, Issue 6, Pages 3131-3137Publisher
INT INST ANTICANCER RESEARCH
DOI: 10.21873/anticanres.15098
Keywords
TAS-102; bevacizumab; colorectal cancer; lymphocyteto-monocyte ratio (LMR); neutrophil-to-lymphocyte ratio (NLR)
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The pre-treatment lymphocyte-to-monocyte ratio (LMR) is a valid predictive and prognostic biomarker for metastatic colorectal cancer patients undergoing TAS-102 and bevacizumab treatment, with higher LMR group showing significantly better disease control rate and longer survival compared to the low LMR group.
Background/Aim: Our multicenter phase II TAS-CC3 study demonstrated favorable median progression-free survival (PFS) and overall survival (OS) of 32 metastatic colorectal cancer (mCRC) patients treated with TAS-102 + bevacizumab as 3rd-line treatment. Patients and Methods: We investigated the predictive and prognostic values of pretreatment blood inflammation-based scores, including the neutrophil-to-lymphocyte (NLR), platelet-to-lymphocyte (PLR) and lymphocyte-to-monocyte ratio (LMR) on disease-control (DC), PFS and OS by a post-hoc analysis. Results: Receiver operating characteristic curve analyses of the 3 inflammation-based scores versus DC showed the best predictive performance for LMR, followed by NLR and PLR. The high-LMR group had a significantly higher DC rate than the low group (87.5 vs. 43.8%). The high-LMR group showed significantly longer survival than the low group (4.9 vs. 23 m for median PFS) (21.0 vs. 6.1 m for median OS). Conclusion: The pre-treatment LMR is a valid predictive and prognostic biomarker for mCRC patients undergoing TAS-102 and bevacizumab treatment.
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