Can you do more than 4 cycles of THP before surgery?

Decker

My mom has done 3 cycles of THP now (out of 4 total) after 4 cycles of AC, and has had a good response to the THP. However, it's not likely that the last cycle of THP will lead to a pathological complete response / remove all the tumor before scheduled surgery, so would it be possible to do one or two more cycles of THP before surgery? She has been responding well to the THP. I think with maybe 2 more cycles of THP it would get close to removing all the tumor at the current rate of tumor size reduction.

She will also have Herceptin after surgery, but without the taxotere and perjeta I feel it may not be as effective as having THP together.