Zoledronic acid for Osteoblastic bone mets

Hello -

My brother has been diagnosed with Fibroblastic Osteosarcoma and has few Osteoblastic bone mets. I wanted to know if Zoledronic acid is of any help to someone with Osteoblastic bone mets. I've read that it usually helps in cases of osteolytic mets but is also used for any type of bone mets. Please advise if administration of zometa will be of any help to someone with Osteoblastic mets?

Regards,

Guy