RT Journal Article SR Electronic T1 The relationship between treatment-induced hypertension and efficacy of anlotinib in recurrent or metastatic esophageal squamous cell carcinoma JF Cancer Biology and Medicine JO Cancer Biol Med FD China Anti-Cancer Association SP 562 OP 568 DO 10.20892/j.issn.2095-3941.2020.0187 VO 18 IS 2 A1 Song, Yan A1 Xiao, Juxiang A1 Fang, Wentao A1 Lu, Ping A1 Fan, Qingxia A1 Shu, Yongqian A1 Feng, Jifeng A1 Zhang, Shu A1 Ba, Yi A1 Zhao, Yang A1 Liu, Ying A1 Bai, Chunmei A1 Bai, Yuxian A1 Tang, Yong A1 He, Jie A1 Huang, Jing YR 2021 UL http://www.cancerbiomed.org/content/18/2/562.abstract AB Objective: In this post-hoc analysis, we evaluated anlotinib treatment-induced hypertension as a potential predictive factor of efficacy in esophageal squamous cell carcinoma (ESCC) patients.Methods: A total of 109 patients enrolled in the anlotinib group in a phase 2 trial were included. The tumor response was assessed by computed tomography at week 3, week 6, and then every 6 weeks until progressive disease was observed. The primary endpoint of the study was progression free survival (PFS). The secondary endpoints included overall survival (OS) and objective response rate (ORR).Results: In all patients, the median PFS was 3.02 months [95% confidence interval (CI): 2.63–3.65 months] and the OS was 6.11 months (95% CI: 4.40–7.79 months). The ORR was 7.34% (95% CI: 3.22%–13.95%). A total of 59 (54%) patients were diagnosed with treatment-induced hypertension (Group A), and the remaining patients (n = 50, 46%) were in Group B. Baseline prognostic factors were similar between the 2 groups. Patients in Group A had a longer PFS and OS and higher ORR. When stratifying patients using a previously known history of hypertension, treatment-induced hypertension was a predictor only for patients without previous hypertension, who had longer PFS [hazard ratio (HR): 0.40, 95% CI: 0.24–0.68] and OS (HR: 0.37, 95% CI: 0.21–0.67).Conclusions: We showed, for the first time, a correlation between treatment-induced hypertension and better prognoses in recurrent or metastatic ESCC patients treated with anlotinib, without a previously known history of hypertension. Treatment-induced hypertension may be a simple and low cost predictor for anlotinib antitumor efficacy in these patients, which may also reflect the intended target inhibition.