Funding for this research was provided by:
Received: 12 May 2020
Accepted: 16 September 2020
First Online: 29 September 2020
Ethics approval and consent to participate
: The following institutional review boards approved the study: RTI International Institutional Review Board, Research Triangle Park, USA; Social Behavioral Institutional Review Board, Creighton University, Omaha, USA; Research Office, Central Manchester University Hospitals NHS Foundation Trust, Manchester, United Kingdom; The Peter MacCallum Cancer Centre Ethics Committee, Melbourne, Australia; Women’s College Hospital Research Ethics Board, Toronto, Canada. All participants provided informed consent prior to their inclusion in the study. This study was performed in accordance with the Declaration of Helsinki.
: Not applicable.
: This study was conducted by RTI Health Solutions under the direction of and funding by Amgen Inc., Thousand Oaks, California. CM is a current and JP is a former employee of RTI Health Solutions that were contracted by Amgen Inc. for the conduct of this study. AL was employed by Amgen at the time of the study and discloses salary and stock ownership. AL discloses current salary and stock ownership with AbbVie Inc. (North Chicago, Illinois) as of April 2019. GL has received research funding support from Amgen and has served on an Amgen Advisory Board. No other conflicts of interest are declared for remaining authors.