Hcc 3rd stage?

Hi everyone.dont know if any one change help but here goes.friday my dad got diagnosed with stage 3 HCC .he has cirrhosis of the liver and a very large tumor.yesterday we met with 2 specialist that say he qualifies for a clinical trial studie that uses therasphere and sorafenib.im just wondering if anyone has done a clinical study.sucessful or not.thanks in advance.staying hopeful:)