I have been in touch with Novartis and it is my understanding that once you are on the new TKI's you cannot be taken off it by a PCT unless there is clear clinical evidence that to carry on would cause you further problems or for some reason it stopped working.
So I believe that anyone taking it would not have any problems if NICE fail to give the go ahead.
I hope that this may give some comfort to those taking these TKI's and were worried.
Steven D