Abstract
e17525 Background: The Sintilimab plus Anlotinib in patients with advanced cervical cancer trial was a single-arm, phase II study that showed promising activity of the programmed death-1 (PD-1) inhibitor sintilimab plus the vascular endothelial growth factor receptor inhibitor Anlotinib in patients with advanced cervical cancer. We aimed to identify prognostic values of inflammation biomarkers and coagulation biomarkers in advanced cervical cancer treated with Sintilimab and Anlotinib. Methods: We conducted a post-hoc analysis of the data from the ALTER-C201 study (Clinical trial information: ChiCTR1900023015). The predictive value of coagulation variables and inflammation variables was evaluated by receiver operating characteristic (ROC) curves. Through Cox hazards regression models, prognostic factors were determined for overall survival (OS). Survival curves were visualized by Kaplan–Meier method and compared through Log-rank analysis. Results: We involved 41 patients and followed up for 38.0 (range, 0.6–44.0) months. According to the ROC curve, the predictive values of baseline CRP and D-dimer are better than other indicators, with area under the curve (AUC) values of 0.748 and 0.848, respectively. The cut-off values for D-dimer and CRP are 1.75ug/ml and 10.9mg/L, respectively. Through regression analysis, we demonstrated that CRP (HR 2.591; 95%CI 1.099–6.106; P = 0.030) and D-dimer (HR 2.669; 95%CI 1.154–6.173; P = 0.022) were independent prognostic factors. Compared to patients with CRP ≥ 10.9mg/L, those with CRP < 10.9mg/L have a longer OS (28.93 months, 95% CI, 15.23 to not reached v 10.57 months, 95% CI, 6.14 to not reached; log-rank test, P = 0.007). Compared to patients with D-dimer ≥ 1.75ug/ml, those with D-dimer < 1.75ug/ml have a longer OS (28.93 months, 95% CI, 17.09 to not reached v 10.73 months, 95% CI, 4.63 to not reached; log-rank test, P = 0.005). Conclusions: CRP and D-dimer predict survival in advanced cervical cancer patients undergoing combined ICI/ VEGF-TKI therapy. We advocate further work to validate utilisation of CRP and D-dimer as prognostic biomarkers for advanced cervical cancer in clinical practice.
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