NorthWest Biotherapeutics Inc (NWBO)

[Steady_T]

If MHRA can use a mechanism to stop the clock then the delay doesn't count against the 210 day time clock.
MHRA has several methods to stop the clock and standard 2 clock stop periods are just one of the methods.

They can ask CHM for advice on an issues the MHRA doesn't have the expertise on, or to consult with other UK governmental agencies.
Given the recent policy changes that would seem a likely clock stop. The MHRA can also clock stop to consult with third parties and other governments.

NWBO has indicated that it has received a stream of questions from MHRA, each of those could stop the clock while NWBO prepares a response.