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Article History

Accepted: 8 July 2025

First Online: 29 August 2025

Declarations

:

: Open Access funding enabled and organized by CAUL and its Member Institutions. This review is part of the project “Characterising and measuring fatigue in progressive multiple sclerosis; a person-centred approach” funded by the International Progressive MS Alliance (International Progressive MS Alliance—2023 Well-being RFA, Application ID: PA-2304-41169).

: The present study’s authors are part of a broader team that has received funding from the International Progressive MS Alliance.

: Data sharing does not apply to this article as no new data were created or analysed in this study. However, the data are available from the corresponding author upon reasonable request.

: Tergel Namsrai – Conceptualisation (support), data curation (lead), formal analysis (equal), visualisation, methodology (equal), project administration (support), software, writing – original draft preparation (lead), writing – editing. Anne Parkinson – Conceptualisation (support), funding acquisition (equal), formal analysis (equal), methodology (equal), project administration (lead). Richard Burns – Conceptualisation (support), funding acquisition (equal), formal analysis (support). Geoffrey Herkes – Conceptualisation (support), funding acquisition (equal), formal analysis (support). Mark Elisha – Conceptualisation (support), formal analysis (support), writing – reviewing and editing (support). Katrina Chisholm – Conceptualisation (support), formal analysis (support), writing – reviewing and editing (support). Janet Drew – Conceptualisation (support), formal analysis (support), writing – reviewing and editing (support). Vanessa Fanning – Conceptualisation (support), funding acquisition (equal), formal analysis (support), writing – reviewing and editing (support). Anne Bruestle – Conceptualisation (support), funding acquisition (lead), visualisation, writing – reviewing and editing (support). Hanna Suominen – Conceptualisation (support), funding acquisition (equal), writing – reviewing and editing (support). Nicolas Cherbuin – Conceptualisation (equal lead), formal analysis (support), funding acquisition (equal), writing – reviewing and editing, supervision (equal). Jane Desborough – Conceptualisation (equal lead), formal analysis (equal), funding acquisition (equal), methodology (equal), writing – reviewing and editing (lead), supervision (equal). Note: Some authors who contributed to the conceptualisation of this review were involved in the broader project design during grant development, prior to the registration of the rapid review protocol on PROSPERO.