Keiichi Sawachi, Naoki Matsumaru, Katsura Tsukamoto. Clinical development of anticancer drugs can be enhanced using efficacy data of small population clinical trials. Journal of Clinical Pharmacy and Therapeutics. 2022
Gentaro Tajima, Naoki Matsumaru, Katsura Tsukamoto. Impact of expedited programs in the United States, as foreign regulatory factors, on clinical development time in Japan. Journal of Clinical Pharmacy and Therapeutics. 2022
Takayuki Miyazaki, Michiyuki Komiyama, Naoki Matsumaru, Hideki Maeda, Katsura Tsukamoto. Lag Time for New Innovative, First-in-Class, Drug Approval in Japan. Biological and Pharmaceutical Bulletin. 2022. 45. 4. 477-482