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Article History

Received: 30 September 2019

Accepted: 19 June 2020

First Online: 12 August 2020

Ethics approval and consent to participate

: This study reports on a secondary analysis of qualitative data that arose from three individual studies. Each individual study received approval from the relevant research ethics committee or Institutional Review Board. The NZ study was approved by the New Zealand Northern A Health and Disability Ethics Committee (reference NTY/06/12/136/AM03). The US study was approved and overseen by an Independent Review Board in the US (approval codes: ADE1–14-472, ADE2–14-168). The Spanish study was approved by the Ethic Committee of Clinical Investigation of the Fundació de Gestió Sanitaria de l’Hospital de la Santa Creu i Sant Pau (approval number 17/034 (OTROS)). Written informed consent was obtained prior to the collection of any data.

: Not applicable.

: ND has received consulting fees, speaker fees or grants from Takeda, Ardea, AstraZeneca, Cymabay, Abbvie, and Crealta, outside the submitted work. WT has received consulting fees from Pfizer (NZ) and Janssen-Cilag Pty Ltd., outside the submitted work. CDT has received consulting fees, speaker fees or grants from AstraZeneca and Grünenthal. BRT declares no conflicts of interest. RA, ST and CP are employees of Adelphi Values and as such were contracted by Pfizer to conduct the research; they perform research for many other pharmaceutical companies for payment.