BACKGROUND: Epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) are the standard first-line treatment regimen for EGFR mutated non-small cell lung cancer (NSCLC) patients. However, the efficacy of EGFR-TKIs widely varies. The aim of this study is to determine whether the pretreatment serum cytokeratin-19 fragments (CYFRA21-1) and carcinoembryonic antigen (CEA) are associated with the efficacy of EGFR-TKIs in EGFR-mutated NSCLC patients. METHODS: We retrospectively enrolled 194 NSCLC patients harboring EGFR mutations who received EGFR-TKIs. Clinical characteristics were collected, and the relation between the efficacy of EGFR-TKIs and pretreatment serum CYFRA21-1 and CEA was analyzed. RESULTS: In all cases, progression-free survival (PFS) in patients with high CYFRA21-1 level was significantly shorter than PFS in patients with normal CYFRA21-1 (7.0 vs 11.9 months, P<0.001). Overall survival (OS) in patients with high CYFRA21-1 was significantly shorter than in the normal-CYFRA21-1 group (12.6 vs 28.0 months, P<0.001). In adenocarcinoma patients, PFS in the high-CYFRA21-1 level group was significantly shorter than in patients with normal CYFRA21-1 (7.0 vs 12.0 months, P<0.001). OS in patients with high CYFRA21-1 was significantly shorter than that in the normal-CYFRA21-1 group (13.1 vs 28.1 months, P<0.001). Among squamous carcinoma patients, CYFRA21-1 level did not affect survival. No significant difference in PFS and OS was observed between patients with high CEA and patients with normal CEA. CONCLUSIONS: EGFR-mutated patients with high CYFRA21-1 had significantly shorter PFS and OS than patients with normal CYFRA21-1 after receiving EGFR-TKIs. Pretreatment serum CYFR21-1 level was a predictive marker of EGFR-TKI treatment in EGFR-mutated NSCLC patients. .
BACKGROUND:Epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) are the standard first-line treatment regimen for EGFR mutated non-small cell lung cancer (NSCLC) patients. However, the efficacy of EGFR-TKIs widely varies. The aim of this study is to determine whether the pretreatment serum cytokeratin-19 fragments (CYFRA21-1) and carcinoembryonic antigen (CEA) are associated with the efficacy of EGFR-TKIs in EGFR-mutated NSCLCpatients. METHODS: We retrospectively enrolled 194 NSCLCpatients harboring EGFR mutations who received EGFR-TKIs. Clinical characteristics were collected, and the relation between the efficacy of EGFR-TKIs and pretreatment serum CYFRA21-1 and CEA was analyzed. RESULTS: In all cases, progression-free survival (PFS) in patients with high CYFRA21-1 level was significantly shorter than PFS in patients with normal CYFRA21-1 (7.0 vs 11.9 months, P<0.001). Overall survival (OS) in patients with high CYFRA21-1 was significantly shorter than in the normal-CYFRA21-1 group (12.6 vs 28.0 months, P<0.001). In adenocarcinomapatients, PFS in the high-CYFRA21-1 level group was significantly shorter than in patients with normal CYFRA21-1 (7.0 vs 12.0 months, P<0.001). OS in patients with high CYFRA21-1 was significantly shorter than that in the normal-CYFRA21-1 group (13.1 vs 28.1 months, P<0.001). Among squamous carcinomapatients, CYFRA21-1 level did not affect survival. No significant difference in PFS and OS was observed between patients with high CEA and patients with normal CEA. CONCLUSIONS:EGFR-mutated patients with high CYFRA21-1 had significantly shorter PFS and OS than patients with normal CYFRA21-1 after receiving EGFR-TKIs. Pretreatment serum CYFR21-1 level was a predictive marker of EGFR-TKI treatment in EGFR-mutated NSCLCpatients. .
Kaplan-Meier survival curves of progression-free survival (PFS) according to serum CYFRA21-1 level in lung adenocarcinoma patients.PFS in normal-and high serum CYFRA21-1 level was 12.0 months and 7.0 months, respectively (P=0.006, HR=0.62, 95%CI:0.44-0.87).
Kaplan-Meier survival curves of overall survival (OS) according to serum CYFRA21-1 level in lung adenocarcinoma patients.OS in normal-and high serum CYFRA21-1 level was 28.1 months and 13.1 months, respectively (P < 0.001, HR=0.30, 95%CI:0.19-0.47).
肺腺癌患者血清CYFRA21-1水平和PFS生存曲线关系。血清CYFRA21-1水平正常和增高PFS分别为12.0个月和7.0个月(P=0.006, HR=0.62, 95%CI:0.44-0.87)。Kaplan-Meier survival curves of progression-free survival (PFS) according to serum CYFRA21-1 level in lung adenocarcinomapatients.PFS in normal-and high serum CYFRA21-1 level was 12.0 months and 7.0 months, respectively (P=0.006, HR=0.62, 95%CI:0.44-0.87).肺腺癌患者血清CYFRA21-1水平和OS生存曲线关系。血清CYFRA21-1水平正常和增高OS分别为28.1个月和13.1个月(P < 0.001, HR=0.30, 95%CI:0.19-0.47)。Kaplan-Meier survival curves of overall survival (OS) according to serum CYFRA21-1 level in lung adenocarcinomapatients.OS in normal-and high serum CYFRA21-1 level was 28.1 months and 13.1 months, respectively (P < 0.001, HR=0.30, 95%CI:0.19-0.47).
Kaplan-Meier survival curves of progression-free survival (PFS) according to serum CEA level in lung adenocarcinoma patients.PFS in normal-and high serum CEA level both were 9.0 months (P=0.436, HR=0.86, 95%CI:0.61-1.22).
Kaplan-Meier survival curves of overall survival (OS) according to serum CEA level in lung adenocarcinoma patients.OS in normal-and high serum CEA level was 24.8 months and 23.0 months, respectively (P=0.104, HR=0.72, 95%CI:0.47-1.11).
肺腺癌患者血清CEA水平和PFS生存曲线关系。血清CEA水平正常和增高PFS均为9.0个月(P=0.436, HR=0.86, 95%CI:0.61-1.22)。Kaplan-Meier survival curves of progression-free survival (PFS) according to serum CEA level in lung adenocarcinomapatients.PFS in normal-and high serum CEA level both were 9.0 months (P=0.436, HR=0.86, 95%CI:0.61-1.22).肺腺癌患者, 血清CEA水平和OS生存曲线关系。血清CEA水平正常和增高OS分别为24.8个月和23.0个月(P=0.104, HR=0.72, 95%CI:0.47-1.11)。Kaplan-Meier survival curves of overall survival (OS) according to serum CEA level in lung adenocarcinomapatients.OS in normal-and high serum CEA level was 24.8 months and 23.0 months, respectively (P=0.104, HR=0.72, 95%CI:0.47-1.11).血清CEA、CYFRA21-1水平亚组生存分析Subset analysis of PFS and OS
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