Adverse event reporting in the recent study by Imanaka et al. describing the efficacy and safety of tapentadol extended release for tumor-related pain

"Adverse event reporting in the recent study by Imanaka et al. describing the efficacy and safety of tapentadol extended release for tumor-related pain." Current Medical Research and Opinion, 30(9), pp. 1909–1910

Transparency

Declaration of funding

This letter was not funded.

Declaration of financial/other relationships

Keiichiro Imanaka is an employee of Janssen Japan and a Johnson & Johnson stockholder. Yushin Tominaga, Masaki Ohsaka, Mikio Wanibe, Keiichiro Hirose, and Taka Matsumura are employees of Janssen Japan. Mila Etropolski and Ilse Van Hove are employees of Janssen Research & Development, LLC, and Johnson & Johnson stockholders.