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Article History

Received: 16 April 2017

Accepted: 8 April 2018

First Online: 20 April 2018

Ethics approval and consent to participate

: The ACTS-GC trial was conducted in accordance with the World Medical Association Declaration of Helsinki and Japanese Good Clinical Practice guidelines. The protocol of ACTS-GC was approved by the institutional review board of each participating hospital. The institutions participated in the ACTS-GC were shown in Additional file : Text S1. Written informed consent was obtained from all patients. Since this analysis was an ad-hoc exploratory analysis, we did not seek additional approval and consent.

: SI received honoraria from Taiho, Chugai, Yakult Honsha, Covidien, Eli Lilly, Takeda, Nippon Kayaku, Kyowa Hakko Kirin, and a grant from Chugai, Yakult Honsha, and writing assistance from Taiho; YO has stock in Statcom and received personal fees as executive salaries from Statcom, honoraria from Sanofi and Eisai, and consulting fees from Chugai, Taiho, Shionogi, Kowa and Eisai, and travel expenses from Yakult Honsha, and Takeda; MS received honoraria from Taiho, Yakult Honsha, Chugai, Eli Lilly, Ono, Takeda, and Sanofi, and grants from Taiho, Yakult Honsha, Eli Lilly, Sanofi, and Takeda.

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