DCIS Hormone Therapy
Dear OncoLink "Ask The Experts,"
Has any new information come out at recent conferences about the addition of aromatase inhibitors after 2.5 yrs. of Tamoxifen for estrogen-positive DCIS, after a lumpectomy with clear margins? A consultation indicated that it was not necessary in my case. In my research, I find that 5 yrs. of Tamoxifen is considered adequate for DCIS.
Kevin R. Fox, MD, Assistant Director, Clinical Affairs and Associate Professor of Hematology/Oncology at the Abramson Cancer Center of the University of Pennsylvania, responds:
Your research is correct. The current standard for DCIS is tamoxifen for five years. There is no role for aromotase inhibitors in the treatment of DCIS at this time.