Genentech and Biogen Idec Announce Top-Line Results from a Phase II/III Clinical Trial of Rituxan in Primary-Progressive Multiple Sclerosis SOUTH SAN FRANCISCO, Calif. & CAMBRIDGE, Mass. — Genentech, Inc. (NYSE:DNA) and Biogen Idec, Inc. (Nasdaq:BIIB) today announced that a Phase II/III study of Rituxan(R) (rituximab) for primary-progressive multiple sclerosis (PPMS) did not meet its primary endpoint as measured by the time to confirmed disease progression during the 96-week treatment period. Genentech and Biogen Idec will continue to analyze the study results and will submit the data for presentation at an upcoming medical meeting. "We are disappointed in the outcome of...