Funding for this research was provided by:
Eli Lilly Japan
Takeda Medical Research Foundation
Dainippon Sumitomo Pharma
Received: 22 May 2020
Accepted: 23 September 2020
First Online: 26 November 2020
Ethics approval and consent to participate
: This study was conducted in accordance with the fundamental principles of the Declaration of Helsinki.
: Written informed consent was obtained from the patient and his family for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
: KM has received research grants from Parexel International, Merck Serono, MSD, Daiichi Sankyo, Sanofi, Sumitomo Dainippon Pharma, Shionogi, Pfizer, Mediscience Planning, and Solasia Pharma (in the role of principal investigator) and has received lecture fees from Eli Lilly, Chugai, Takeda, Ono, Taiho, Sanofi, Bristol-Myers Squibb, and Bayer (honoraria). HB has received lecture fees from Taiho Pharmaceutical. SO, MT, YM, WH, and YN declare that they have no competing interests.