Branched polyethylene glycol regulatory update

Shearwater received U.S. Patent No. 5,932,462 covering a branched PEG polymer for coupling to protein molecules and surfaces. Shearwater's technology is licensed to F. Hoffmann-La Roche Ltd. (Basel, Switzerland) for use in Roche's Pegasys pegylated interferon alfa-2a product, which is in Phase III testing to treat chronic hepatitis C. ...