You do not need to get any other special tests for Her1 as Tykerb targets both Her1 and Her2. Therefore, if you are Her2 positive, Tykerb can be a benefit. However, Tykerb could also be a benefit to those who are only Her1 positive. Therefore, women with progression who are triple negative or only ER/PR positive (but not Her2 +) should get tested because if they are Her1 positive, Tykerb could be a benefit to them.
Kind regards
Becky
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