The Royal College of Physicians is developing the ME/CFS guideline.
"Guideline development group recruitment
An independent guideline development group is set up by the NGC for each clinical guideline being developed. Group members include health professionals and patient/carer representatives with relevant expertise and experience. Registered stakeholders are invited to nominate people to join the group."
https://www.rcplondon.ac.uk/about-rcp/work-rcp/develop-guidelines
from the Full Methodology Handbook
"all GDG members will have 'interests' or they would not have been asked to be on the GDG
and a declared interest does not necessarily preclude them from being on the GDG. But, it is
important that members of the group know where members are coming from during a given
discussion. (For example, if Prof A is known to endorse stripping of varicose veins and be adamantly
opposed to tying, the other GDG members need to be aware of this before a discussion takes place.)
It may be that the chairman, with the GDG's support, will ask a member to not participate in the
discussion of a particular topic if they have a conflict in order not to have undue influence over the
discussion. (For example, Prof A could be asked to leave the room, be silent or act as an 'expert
witness' on the surgical procedure, only answering questions but not participating in the discussion).
On occasions, the affiliations or interests of an individual may be so extensive relative to the
guideline topic as to preclude them from being a GDG member. This may be the case if a particular
outcome of the guideline would significantly benefit them commercially or if they would were
employed by a company with a commercial interest in the guideline topic."