Dear Big Sis
I cannot comment on the effects of the chemo, but from what I have read, early chemo is the best treatment that you can get at the moment, and not all trusts are doing it, so in that sense your brother has been lucky to be offered it.
I am sorry to hear that the side effects are so debilitating, and others will be able to comment on these.
In terms of the diagnosis, I am no expert but I think he may be in the cure camp, or the chance of a cure, looking at the scores, again others will comment.
I hope he will feel a little better soon.
Alison