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A member asked:
Does pr-negative breast cancer respond to tamoxifen?
9 doctors weighed in across 3 answers
It depends.: Tamoxifen is used to treat hormone-sensitive breast cancer. This is determined by checking for estrogen receptors (er) and Progesterone receptors (pr) on the cancer. If the cancer is er+ and pr- (or vice-versa), it should respond to tamoxifen. However, if the cancer is er- and pr-, tamoxifen is not effective.
Answered 8/4/2014
6.3k views
Yes if ER+: If the breast cancer is er +, tamoxifen will work- however it will not work if the cancer is er-, pr-.
Answered 9/21/2012
5.7k views
ER?: Response to tamoxifen depends on the er (estrogen receptor) status.
Answered 10/4/2016
5.2k views
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