Here is an international trial (TRUST) for Sub-clinical hypothryoid folks over 65 , not sure if it has started yet sorry, but if you are in Glasgow or Cork maybe you know more. (trial mentioned in Dr Linder's letter to Scottish Parliament).
trustthyroidtrial.com/index...
For one definition of Sub-clinical (2008) and a bigger version of the flowchart, see here
bmj.com/content/337/bmj.a80...
link to Scottish Parliament petition, letters of submission here
scottish.parliament.uk/Gett...
Jane