D/w your oncologist: what do you mean by 5? did you mean that you get 5 doses or 5 cycles? Certainly I would like and I would hope to see that the tumor marker would go down after an effective treatment. However I would not rely solely on the tumor marker to make decision whether one fails therapy or not. I would repeat imaging study after a few cycles to see respond to therapy . You should discuss this with your MD
Answered 10/8/2017
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