RT Journal Article SR Electronic T1 Changes in Chemotherapeutic Strategies and Their Prognostic Impact in Patients With Advanced Gastric Cancer JF In Vivo JO In Vivo FD International Institute of Anticancer Research SP 409 OP 415 DO 10.21873/invivo.12718 VO 36 IS 1 A1 TAKAAKI ARIGAMI A1 DAISUKE MATSUSHITA A1 KEISHI OKUBO A1 TAKAKO TANAKA A1 KEN SASAKI A1 YUSUKE TSURUDA A1 YOSHIAKI KITA A1 SHINICHIRO MORI A1 HIROSHI KURAHARA A1 YOSHIKAZU UENOSONO A1 TAKAO OHTSUKA YR 2022 UL http://iv.iiarjournals.org/content/36/1/409.abstract AB Background/Aim: To investigate changes in post-progression chemotherapy (PPC) before and after nivolumab approval and determine their prognostic impact. Patients and Methods: A total of 146 patients with unresectable gastric cancer who had at least progressive disease after first- and/or second-line chemotherapy were retrospectively enrolled. Results: Among the 146 patients, 46 and 23 received ramucirumab and nivolumab, respectively. Moreover, 95 and 62 patients received PPC after first- and second-line chemotherapy, respectively. Group B (i.e., at least chemotherapy after nivolumab approval) had significantly higher proportions of patients receiving ramucirumab therapy, nivolumab therapy, and PPC after first- or second-line chemotherapy compared to group A (i.e., termination of chemotherapy before nivolumab approval). Group A had significantly poorer prognosis than group B. Multivariate analysis showed that age, number of distant metastatic sites, and ramucirumab therapy were independent prognostic factors. Conclusion: Changes in chemotherapeutic strategies, including PPC, might contribute to improved prognosis in patients with advanced gastric cancer.