Does CT approval by the national ethics committee have to be included in the full proposal?

No. What might be helpful for your application: show that you have ethic committees at (some of) your partner institutions, show that you have experience with similar CTs in the past, or that you are already in discussions with ethic committee, and sometime an ethical board (with supervisory function) may be a good idea, if e.g. with transplanting organs, you have VERY sensible aspects.