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Matthew J Ridd, Sian Wells, Stephanie J MacNeill, Emily Sanderson, Douglas Webb, Jonathan Banks, Eileen Sutton, Alison RG Shaw, Zoe Wilkins, Julie Clayton, Amanda Roberts, Kirsty Garfield, Lyn Liddiard, Tiffany J Barrett, J Athene Lane, Helen Baxter, Laura Howells, Jodi Taylor, Alastair D Hay, Hywel C Williams, Kim S Thomas & Miriam Santer.

Matthew J Ridd ^1,*, Sian Wells ¹, Stephanie J MacNeill ², Emily Sanderson ², Douglas Webb ¹, Jonathan Banks ³, Eileen Sutton ¹, Alison RG Shaw ¹, Zoe Wilkins ¹, Julie Clayton ¹, Amanda Roberts ⁴, Kirsty Garfield ², Lyn Liddiard ¹, Tiffany J Barrett ⁵, J Athene Lane ⁶, Helen Baxter ¹, Laura Howells ⁷, Jodi Taylor ², Alastair D Hay ¹, Hywel C Williams ⁷, Kim S Thomas ⁷, Miriam Santer ⁸

¹ Centre for Academic Primary Care, Bristol Medical School, University of Bristol, Bristol, UK
² Bristol Trials Centre, University of Bristol, Bristol, UK
³ National Institute for Health and Care Research Collaborations for Leadership in Applied Health Research and Care West, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
⁴ Nottingham Support Group for Carers of Children with Eczema, Nottingham, UK
⁵ South West Medicines Information and Training, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
⁶ Bristol Randomised Trials Collaboration, Bristol Trials Centre, University of Bristol, Bristol, UK
⁷ Centre of Evidence Based Dermatology, University of Nottingham, Nottingham, UK
⁸ Primary Care Research Centre, University of Southampton, Southampton, UK
^* Corresponding author Email: m.ridd@bristol.ac.uk

Disclosure of interests of authors

Full disclosure of interests: Completed ICMJE forms for all authors, including all related interests, are available in the toolkit on the NIHR Journals Library report publication page at https://doi.org/10.3310/GZQW6681.

Primary conflicts of interest: Alastair D Hay is currently a member of the National Institute for Health and Care Research (NIHR) Efficacy and Mechanism Evaluation Funding Committee (2019–present) and the National Institute for Health and Care Excellence Managing Common Infections Committee (2016–present). He has previously been a member of the NIHR Health Technology Assessment (HTA) Clinical Evaluation and Trials Committee (2013–17) and the NIHR Programme Grants for Applied Research (PGfAR) funding committee (2007–12). Laura Howells is employed as a research fellow to work on research grants that are funded by NIHR. She also currently acts as a consultant for the University of Oxford (Oxford, UK) on an educational grant funded by Pfizer Inc. (Pfizer Inc., New York, NY, USA), unrelated to the submitted work. J Athene Lane is a member of the NIHR Clinical Trials Unit Standing Advisory Committee (2021–present) and a clinical trials unit funded by NIHR. Stephanie MacNeill is currently a member of the NIHR HTA General Committee (August 2020–present). Matthew J Ridd is a member of NIHR In-Practice Fellowship Selection Committee (2020–present), and was previously a member of the NIHR Systematic Reviews Programme Advisory Group (2019–20) and the NIHR HTA General Committee (2016–19). Amanda Roberts was previously a member of the Pharmaceuticals Panel, and a member of the NIHR HTA General Committee (2017–21) and HTA Fast Track Committee (2010–12). Miriam Santer has received funding for other NIHR projects and is a panel member for NIHR PGfAR (2018–present). Hywel C Williams directed the NIHR HTA programme from 2015 to 2020, which funded this study. He had no role to play in the funding decision.