How are trial outcomes prioritised by stakeholders from different regions? Analysis of an international Delphi survey to develop a core outcome set in gastric cancer surgery

• Bilal Alkhaffaf ,

  Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: bilal.alkhaffaf@srft.nhs.uk

  Affiliations Department of Oesophago-Gastric Surgery, Salford Royal Hospital, Salford Royal NHS Foundation Trust, Manchester, United Kingdom, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom

  https://orcid.org/0000-0001-5751-1846

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• Aleksandra Metryka,

  Roles Data curation, Formal analysis, Project administration, Writing – review & editing

  Affiliation Paediatric ENT Department, Royal Manchester Children’s Hospital, Manchester University NHS Foundation Trust, Manchester, United Kingdom

  https://orcid.org/0000-0001-9871-5167

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• Jane M. Blazeby,

  Roles Conceptualization, Funding acquisition, Methodology, Supervision, Writing – review & editing

  Affiliation Centre for Surgical Research and Bristol NIHR Biomedical Research Centre, University of Bristol, Bristol, United Kingdom

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• Anne-Marie Glenny,

  Roles Funding acquisition, Supervision, Writing – review & editing

  Affiliation Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom

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• Paula R. Williamson ,

  Roles Funding acquisition, Methodology, Supervision, Writing – review & editing

  ¶‡ PRW and IAB are joint senior authors on this work.

  Affiliation MRC North West Hub for Trials Methodology Research, University of Liverpool and a Member of Liverpool Health Partners, Liverpool, United Kingdom

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• Iain A. Bruce ,

  Roles Funding acquisition, Supervision, Writing – original draft, Writing – review & editing

  ¶‡ PRW and IAB are joint senior authors on this work.

  Affiliations Paediatric ENT Department, Royal Manchester Children’s Hospital, Manchester University NHS Foundation Trust, Manchester, United Kingdom, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom

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• on behalf of the GASTROS International Working Group

  ¶Membership of the GASTROS working group is listed in the Acknowledgments.

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