Clinical Significance of Prior Ramucirumab Use on the Effectiveness of Nivolumab as the Third-Line Regimen in Gastric Cancer: A Multicenter Retrospective Study

Abstract Background and Objective Because vascular endothelial growth factor inhibition has been suggested to improve immune cell function in the cancer microenvironment, we examined whether using ramucirumab (RAM) before nivolumab usage is more effective in advanced gastric cancer. Methods This was...

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Main Authors: Yuka Obayashi, Shoichiro Hirata, Yoshiyasu Kono, Makoto Abe, Koji Miyahara, Masahiro Nakagawa, Michihiro Ishida, Yasuhiro Choda, Kenta Hamada, Masaya Iwamuro, Seiji Kawano, Yoshiro Kawahara, Motoyuki Otsuka
Format: Article
Language:English
Published: Adis, Springer Healthcare 2024-10-01
Series:Drugs - Real World Outcomes
Online Access:https://doi.org/10.1007/s40801-024-00460-z
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author Yuka Obayashi
Shoichiro Hirata
Yoshiyasu Kono
Makoto Abe
Koji Miyahara
Masahiro Nakagawa
Michihiro Ishida
Yasuhiro Choda
Kenta Hamada
Masaya Iwamuro
Seiji Kawano
Yoshiro Kawahara
Motoyuki Otsuka
author_facet Yuka Obayashi
Shoichiro Hirata
Yoshiyasu Kono
Makoto Abe
Koji Miyahara
Masahiro Nakagawa
Michihiro Ishida
Yasuhiro Choda
Kenta Hamada
Masaya Iwamuro
Seiji Kawano
Yoshiro Kawahara
Motoyuki Otsuka
author_sort Yuka Obayashi
collection DOAJ
description Abstract Background and Objective Because vascular endothelial growth factor inhibition has been suggested to improve immune cell function in the cancer microenvironment, we examined whether using ramucirumab (RAM) before nivolumab usage is more effective in advanced gastric cancer. Methods This was a multicenter retrospective observational study. We analyzed patients who received nivolumab monotherapy as the third-line regimen for unresectable advanced or recurrent gastric cancer between October 2017 and December 2022. They were divided into the RAM (RAM-treated) group and the non-RAM (non-treated) group according to the RAM usage in the second-line regimen. The primary outcome was to compare the overall survival after nivolumab administration in the third-line regimen between the RAM and non-RAM groups. Results Fifty-two patients were included in the present study: 42 patients in the RAM group and ten patients in the non-RAM group. The median overall survival was significantly longer in the RAM group than in the non-RAM group (8.5 months vs 6.9 months, p < 0.05). In the RAM group, patients without peritoneal metastasis had significantly better median overall survival than those with peritoneal metastasis (23.8 months vs 7.7 months, p = 0.0033). Multivariate Cox-proportional hazards analyses showed that the presence of peritoneal metastasis (hazard ratio, 2.4; 95% confidence interval 1.0–5.7) alone was significantly associated with overall survival in the RAM group. Conclusions The use of RAM prior to nivolumab monotherapy may contribute to prolonged survival in patients with gastric cancer, especially those without peritoneal metastasis.
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spelling doaj-art-76c4b7f4fda143e6882288444e5bffd12025-08-20T02:56:10ZengAdis, Springer HealthcareDrugs - Real World Outcomes2199-11542198-97882024-10-0111455756410.1007/s40801-024-00460-zClinical Significance of Prior Ramucirumab Use on the Effectiveness of Nivolumab as the Third-Line Regimen in Gastric Cancer: A Multicenter Retrospective StudyYuka Obayashi0Shoichiro Hirata1Yoshiyasu Kono2Makoto Abe3Koji Miyahara4Masahiro Nakagawa5Michihiro Ishida6Yasuhiro Choda7Kenta Hamada8Masaya Iwamuro9Seiji Kawano10Yoshiro Kawahara11Motoyuki Otsuka12Department of Internal Medicine, Hiroshima City Hiroshima Citizens HospitalDepartment of Gastroenterology and Hepatology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityDepartment of Gastroenterology and Hepatology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityDepartment of Internal Medicine, Hiroshima City Hiroshima Citizens HospitalDepartment of Internal Medicine, Hiroshima City Hiroshima Citizens HospitalDepartment of Endoscopy, Hiroshima City Hiroshima Citizens HospitalDepartment of Surgery, Hiroshima City Hiroshima Citizens HospitalDepartment of Surgery, Hiroshima City Hiroshima Citizens HospitalDepartment of Practical Gastrointestinal Endoscopy, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityDepartment of Gastroenterology, Okayama University HospitalDepartment of Gastroenterology, Okayama University HospitalDepartment of Practical Gastrointestinal Endoscopy, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityDepartment of Gastroenterology and Hepatology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityAbstract Background and Objective Because vascular endothelial growth factor inhibition has been suggested to improve immune cell function in the cancer microenvironment, we examined whether using ramucirumab (RAM) before nivolumab usage is more effective in advanced gastric cancer. Methods This was a multicenter retrospective observational study. We analyzed patients who received nivolumab monotherapy as the third-line regimen for unresectable advanced or recurrent gastric cancer between October 2017 and December 2022. They were divided into the RAM (RAM-treated) group and the non-RAM (non-treated) group according to the RAM usage in the second-line regimen. The primary outcome was to compare the overall survival after nivolumab administration in the third-line regimen between the RAM and non-RAM groups. Results Fifty-two patients were included in the present study: 42 patients in the RAM group and ten patients in the non-RAM group. The median overall survival was significantly longer in the RAM group than in the non-RAM group (8.5 months vs 6.9 months, p < 0.05). In the RAM group, patients without peritoneal metastasis had significantly better median overall survival than those with peritoneal metastasis (23.8 months vs 7.7 months, p = 0.0033). Multivariate Cox-proportional hazards analyses showed that the presence of peritoneal metastasis (hazard ratio, 2.4; 95% confidence interval 1.0–5.7) alone was significantly associated with overall survival in the RAM group. Conclusions The use of RAM prior to nivolumab monotherapy may contribute to prolonged survival in patients with gastric cancer, especially those without peritoneal metastasis.https://doi.org/10.1007/s40801-024-00460-z
spellingShingle Yuka Obayashi
Shoichiro Hirata
Yoshiyasu Kono
Makoto Abe
Koji Miyahara
Masahiro Nakagawa
Michihiro Ishida
Yasuhiro Choda
Kenta Hamada
Masaya Iwamuro
Seiji Kawano
Yoshiro Kawahara
Motoyuki Otsuka
Clinical Significance of Prior Ramucirumab Use on the Effectiveness of Nivolumab as the Third-Line Regimen in Gastric Cancer: A Multicenter Retrospective Study
Drugs - Real World Outcomes
title Clinical Significance of Prior Ramucirumab Use on the Effectiveness of Nivolumab as the Third-Line Regimen in Gastric Cancer: A Multicenter Retrospective Study
title_full Clinical Significance of Prior Ramucirumab Use on the Effectiveness of Nivolumab as the Third-Line Regimen in Gastric Cancer: A Multicenter Retrospective Study
title_fullStr Clinical Significance of Prior Ramucirumab Use on the Effectiveness of Nivolumab as the Third-Line Regimen in Gastric Cancer: A Multicenter Retrospective Study
title_full_unstemmed Clinical Significance of Prior Ramucirumab Use on the Effectiveness of Nivolumab as the Third-Line Regimen in Gastric Cancer: A Multicenter Retrospective Study
title_short Clinical Significance of Prior Ramucirumab Use on the Effectiveness of Nivolumab as the Third-Line Regimen in Gastric Cancer: A Multicenter Retrospective Study
title_sort clinical significance of prior ramucirumab use on the effectiveness of nivolumab as the third line regimen in gastric cancer a multicenter retrospective study
url https://doi.org/10.1007/s40801-024-00460-z
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