Avastin 7.5mg/kg every 3 weeks + CG 6
PD
Avastin 15mg/kg every 3 weeks + CG 6
PD
Two-stage design – Initially, 210 patients were randomised to one of the three arms (1:1:1) – following assessment, 1:1 randomisation continues to the CG-alone plus one CG + Avastin arm – no crossover allowed
12
18
24
30
36
Months
Sandler A, NEJM 2019
Gemcitabine-cisplatin +/- Avastin in NSCLC: a phase III trial
CG alone 6
Previously untreated, stage IIIb,
IV or recurrent NSCLC (n=830)
OS 高加索人(n=945)
亚裔(n=121) 腺癌(n=412)
11.3月 10.5月 17.6月 12.0月
鳞癌(n=347)
10.2月
B组(CV) 10.1月 9.1月 20.4月 10.2月
8.9月
P 0.0441 0.0025 0.4992 0.0673
0.0567
结论:联合治疗对高加索人总生存期的改善优于亚洲人, 而且独立于组织学分型,不过亚洲人总生存期较长
EGFR-TKI与化疗药物联合存在某些共同获益人群 EGFR-TKI与化疗药物存在拮抗的作用