I am at the tag end of Zytiga and likely headed to Xtandi next. In a conversation with my MO, he indicated that Elreada is an option, and that there are likely to be some trails available. The science is changing quickly. Also, if your Dad has not had chemo yet, after those treatments they my try Zytiga and Xtandi again looking for a response. I post often and will keep the forum posted as I move forward.
Mike (aka kmclark1)
DX 55 Yrs Old - T4,N1,M0
11/13 - PSA 130, MRI BX -8/8 cores positive -G8 (4+4), BS Mets spine hips ribs, No Symptoms
11/13 - Firmagon, 12/13 Trial S1216,1st Lupron, CasodexMy PSA Chart