SOUTH SAN FRANCISCO, Calif.--(BUSINESS WIRE)--Genentech, Inc., a member of the Roche Group (SIX: RO, ROG; OTCQX: RHHBY), today announced that information submitted by the company to the U.S. Food and Drug Administration (FDA) during the review of the supplemental Biologics License Applications (sBLAs) for Avastin® (bevacizumab) for previously untreated (first-line) advanced HER2-negative breast cancer has been deemed a major amendment. In accordance with FDA guidelines, the agency has extended the review period for the sBLAs by an additional 90 days. The company now anticipates FDA action on the sBLAs by December 17, 2010.