Real-world ramucirumab and immune checkpoint inhibitor sequences in US patients with advanced gastroesophageal cancer.

Aim: To describe real-world treatment sequences of ramucirumab relative to immune checkpoint inhibitors (ICIs) in patients with advanced gastroesophageal cancer. Methods: Retrospective, observational study including adult patients treated with ramucirumab (April 2014-June 2020) from a nationwide health-record database. Results: In 1117 eligible patients, ramucirumab + paclitaxel was the most common ramucirumab-containing regimen (72.0%). A total of 217 patients also received an ICI. For ramucirumab then ICI (n = 148) and ICI then ramucirumab (n = 50), ramucirumab + taxane and ICI monotherapy were the most frequent approaches, most commonly observed as second- and third-line (2L and 3L). Median time on ramucirumab in 2L and 3L was similar regardless of sequence with ICI. Conclusion: Most patients with advanced gastroesophageal cancer received ramucirumab before ICI, with ramucirumab + paclitaxel as the most common ramucirumab-based regimen.