another avenue, but unsure if your daughter qualifies if she has already had WBR--also
they need some tissue brain met biopsy best) to determine if your brain mets contain Na-I symporter
here are two threads to explore with info on clinical trial requirements(link) etc:
http://her2support.org/vbulletin/sho...ghlight=Wapnir
http://her2support.org/vbulletin/sho...ghlight=Wapnir