• Dr. Hugo Castro

Cancer de la unión gastroesofágica con o sin quimioterapia +/- quimioterapia

Actualizado: sep 28



Authors:

Josep Tabernero, Eric Van Cutsem, Yung-Jue Bang, Charles S. Fuchs, Lucjan Wyrwicz, Keun Wook Lee, Iveta Kudaba, Marcelo Garrido, Hyun Cheol Chung, Hugo Raul Castro Salguero, Wasat Mansoor, Maria Ignez Freitas Melro Braghiroli, Eray Goekkurt, Joseph Chao, Zev A. Wainberg, Uma Kher, Sukrut Shah, SoonMo Peter Kang, Kohei Shitara; Vall d’Hebron University Hospital and Institute of Oncology,


Background:KEYNOTE062 (NCT02494583) was a randomized, active controlled study of 1L P or P+C vs C in pts with PD-L1 combined positive score ≥1 (CPS ≥1), HER2-negative, advanced GC.


Methods: Eligible pts were randomized 1:1:1 to P 200 mg Q3W for up to 2 y, P+C (cisplatin 80 mg/m2 + 5-FU 800 mg/m2/d on d1-d5 Q3W [or capecitabine 1000 mg/m2 BID on d1-d14 Q3W per local guideline]) or placebo Q3W + C. Randomization was stratified by region, disease status, and fluoropyrimidine treatment. Primary endpoints were OS in CPS ≥1 and CPS ≥10 for P+C vs C and P vs C and PFS (RECIST v1.1; central review) in CPS ≥1 for P+C vs C. ORR (RECIST v1.1; central review) in CPS ≥1 for P+C vs C was the secondary endpoint. Final analysis cutoff date was 26 Mar 2019.


Results: 763 pts (281 with CPS ≥10) were randomized to P+C (257), P (256), or C (250) (Table). Median follow-up was 11.3 mo. P was noninferior to C for OS in CPS ≥1 per prespecified margins. P vs C prolonged OS in CPS ≥10 (median 17.4 vs 10.8 mo; HR 0.69; 95% CI 0.49-0.97) but wasn’t tested per analysis plan. P+C vs C was not superior for OS in CPS ≥1 or CPS ≥10, with a favorable trend for P+C. P+C did not significantly prolong PFS in CPS ≥1. ORR was higher for P+C vs C. Grade 3-5 drug-related AE rates were 17% (P), 73% (P+C), and 69% (C).


Conclusions: As 1L therapy for advanced GC, P was noninferior to C for OS in CPS ≥1 with clinically meaningful improvement for OS in CPS ≥10. P+C did not show superior OS and PFS in CPS ≥1 and OS in CPS ≥10. The safety profile was more favorable for P vs C. Clinical trial information: NCT02494583





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