Is not true that the effectiveness of using Zytiga is based on ones biomarkers or lack of certain biomarkers? Same is true for Xtandi, correct? Thank you.
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That's backwards. The effectiveness of Zytiga/Xtandi is not based on your biomarkers. Biomarkers (and scans) can be used to monitor the effectiveness of Zytiga/Xtandi.
There are mutations of the androgen receptor that allow the cancer to progress when treated with Zytiga or enzalutamide. One of these splice variants is the AR-V7. If the cancer is AR-V7 positive it may not respond to zytiga or enza treatment.
Thank you. Is there currently a blood workup that is available for individuals to measure for AR-V7 Splice Variant? The little that I have read is that there is not?
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