Published in:
21-11-2022 | Gastric Cancer | Original Article
Treatment efficacy of ramucirumab-containing chemotherapy in patients with alpha-fetoprotein producing gastric cancer
Authors:
Daisaku Kamiimabeppu, Takeru Wakatsuki, Daisuke Takahari, Naoki Fukuda, Keitaro Shimozaki, Hiroki Osumi, Izuma Nakayama, Mariko Ogura, Akira Ooki, Eiji Shinozaki, Keisho Chin, Kensei Yamaguchi
Published in:
International Journal of Clinical Oncology
|
Issue 1/2023
Login to get access
Abstract
Background
Alpha-Fetoprotein Producing Gastric Cancer (AFPGC) is an aggressive subgroup of gastric cancer. Recently ramucirumab has shown survival benefits in hepatocellular carcinoma, but only in those with higher Alpha-Fetoprotein (AFP) levels. However, the efficacy of ramucirumab-containing chemotherapy in AFPGC remains unclear.
Methods
We retrospectively assessed 352 patients who received ramucirumab-containing chemotherapy between June 2015 and December 2019. AFPGC was defined when serum AFP levels were elevated at diagnosis and correlated with the disease state during treatment. Non-AFPGC was defined when serum AFP levels were normal at diagnosis.
Results
Among the 352 patients, 28 patients were defined as AFPGC and 246 patients were defined as non-AFPGC. AFPGC was characterized by high frequency of liver metastasis and low frequency of peritoneal metastasis compared to non-AFPGC. Ramucirumab containing chemotherapy showed higher response rates in AFPGC (39.1% vs 24.8%, p = 0.198) and disease control rates (86.9% vs 61.5%, p = 0.028) than those of non-AFPGC, respectively. Median progression-free survival (PFS) was 5.5 months (95%CI 3.9–7.1) in AFPGC and 4.0 months (95%CI 3.6–4.6) in non-AFPGC (HR: 0.91, 95% CI 0.61–1.36, p = 0.66), and median overall survival (OS) was 10.7 months (95% CI 7.4–20.8) in AFPGC and 9.2 months (95% CI 8.1–10.4) in non-AFPGC (HR: 0.72, 95% CI 0.48–1.08, p = 0.11), respectively. In multivariate analysis, AFPGC was not a negative prognostic factor both for PFS and OS.
Conclusion
Ramucirumab containing chemotherapy showed higher response and comparable survival in AFPGC compared to those of non-AFPGC. Considering the generally poor prognosis of AFPGC, ramucirumab-containing chemotherapy might be a promising treatment option in AFPGC.