Did some more research for you. Teva (Copaxone's manufacturer) has completed trials and studies with oral Copax, and the results weren't any better than placebo. (google Oral copaxone for specifics) I don't think there will be any more studies on oral GA.
That said, there is tons of research coming out quite recently regarding Copaxone and its success of slowing disease progression in RRMS and even PPMS.
My husband wasn't thrilled with needles every day, but he uses the auto-inject device, and he's tolerated this medication really well. It was a good choice for him. You can private mail me if you have more specific questions-