Ramucirumab

Although advances in chemotherapy have improved the prognosis of gastric cancer patients, many patients still suffer from adverse events. Therefore, it is necessary to establish personalized treatment by identifying patients at high risk for side effects. Although paclitaxel-based therapy is the standard second-line treatment, peripheral neuropathy is a troublesome adverse event. The purpose of this study is to establish a liquid biopsy assay to predict paclitaxel-induced peripheral neuropathy in gastric cancer patients.

This anchored matching-adjusted indirect comparison (MAIC) evaluates the relative efficacy of fruquintinib-paclitaxel (using IPD from the FRUTIGA trial, n=703) versus ramucirumab-paclitaxel (using published AgD from RAINBOW-Asia, n=440) in advanced gastric/GEJ adenocarcinoma. Baseline characteristics are adjusted via entropy balancing weights. Primary endpoint is progression-free survival (PFS) analyzed by Bucher method; secondary endpoints include overall survival (OS) and objective response rate (ORR). Sensitivity analyses comprise restricted mean survival time (RMST) analysis and simulated treatment comparison (STC).