Multicenter Phase 2 Trial of Ramucirumab Plus Irinotecan in Patients with Early Relapsed Gastric Cancer During or After Adjuvant Docetaxel Plus S-1 Therapy: RAMIEL Trial (OGSG1901)

ASTRON (OGSG 2401): A multicenter prospective trial of ferric carboxymaltose for patients with gastrointestinal cancer and iron deficiency anemia undergoing chemotherapy

Tumor Response Predicts Survival Time of Ramucirumab Plus Irinotecan in Advanced Gastric Cancer: An Exploratory Analysis of the Phase III RINDBeRG Trial

Identification of Prognostic Factors and Construction of Prognostic Index for Later-line Treatment in Advanced Gastric Cancer: Sub-analysis from the Phase III RINDBeRG Trial

進行胃癌に対する周術期capecitabine＋oxaliplatin(CapeOx)療法の術前化学療法としての有用性（OGSG1601、1701試験より）

Conversion Surgery in Advanced Gastric Cancer Patients Aged over 80 : Results from a Multi-Institutional Retrospective Study (OGSG2301)

Prognostic Implications of Neutropenia in Advanced Gastric Cancer: An Exploratory Analysis of the RINDBeRG Trial

Predictive Value of Nivolumab-Free Interval in Ramucirumab Plus Irinotecan Therapy: An Exploratory Analysis of the RINDBeRG Trial

胃癌術後補助化学療法時の栄養介入が予後に与える影響（OGSG1108試験の追加観察研究）

Phase I/II study of neoadjuvant chemoradiotherapy consisting of S-1 and cisplatin for patients with clinically resectable type 4 and large type 3 gastric cancer (OGSG1205)