Lapatinib in combination with capecitabine plus oxaliplatin (CapeOx) in HER2-positive advanced or metastatic gastric, esophageal, or gastroesophageal adenocarcinoma (AC): The TRIO-013/LOGiC Trial.
2013
LBA4001 Background: HER2 amplification is common in upper GI tract (UGIT) adenocarcinomas and inhibition improves clinical outcomes. Lapatinib ditosylate (L), a dual anti EGFR and anti HER2 tyrosine kinase inhibitor with preclinical activity against these cancers, was investigated in a phase III, randomized, double blind trial evaluating efficacy and safety in combination with CapeOx as first-line treatment of advanced or metastatic HER2+ UGIT ACs. Methods: Subjects had measurable and/or non-measurable disease with overexpression or amplification of HER2 (IHC2+ and FISH amplified, or IHC 3+, or FISH, CISH, or SISH amplified). HER2 status was reviewed by the central lab. Subjects were randomized 1:1 to CapeOx q3w (oxaliplatin 130mg/m2 day 1; capecitabine 850mg/m2/BID days 1 – 14), and daily L (1250mg) (CapeOx+L) or placebo (CapeOx+P). The primary efficacy population (PEP) comprised all subjects whose tumors were centrally confirmed to be FISH amplified. The primary endpoint was overall survival (OS) of the...
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