I do not work in the biotech field, I am not a medical doctor or scientist.
When I read the definitions of these two cancers, "castration resistant" means hormone therapy is no longer effective while "hormone sensitive" means hormone therapy is effiective.
The Clinical trials specifiy this cancer type in the "conditions" section so I think they are different because they are targeting two different cancer conditions.
I'd like Bear to chime in here, I think this is a good 'Bear' question.