Thank you both. It makes a bit more sense to me now.
http://www.youtube.com/watch?v=xiCcSxdyq7A&feature=mfu_in_order&list=UL
http://www.youtube.com/watch?v=X7aBHz_INzg&feature=autoplay&list=ULA4veK55U-Ck&index=24&playnext=1
http://www.medpagetoday.com/MeetingCoverage/DDW/26404
you should watch the videos that were posted today by Magnum, and Susie. They answer all these questions.
Well, if your in the arm with the PI's (in my trial) and you are und, you treat for 24 weeks, possible 16, otherwise if you are not und, and in the SOC arm you can start all over for 24 weeks and take the PI's