CytoTherapeutics Inc. announced that ThomasWiggans has resigned as president and chiefoperating officer, saying he is eager to pursuediscussions with "several companies" regardinga chief executive officer position. He will remaina director of the Providence, R.I., company.David Royce has been promoted to president,chief operating officer and chief scientific officerat Organogenesis Inc. He was vice president ofresearch and development. Royce succeedsThomas Tully, who resigned. Michael Pieniazekalso has been promoted to executive vicepresident and chief financial officer at theCanton, Mass., company.Cell Genesys Inc. has elected Stephen Sherwinchairman of its board of directors. He joined theFoster City, Calif., company four years ago andis currently president and chief executive officer.Celgene Corp. of Warren, N.J., has appointedRichard Wright chairman and chief executiveofficer. Wright was group vice president at StorzInstrument Co.Bruce Peacock was named chief operatingofficer and director at Cephalon Inc. of WestChester, Pa. He was senior vice president andchief financial officer at Centocor Inc. Cephalonalso named Kevin Buchi vice president offinance and administration. Buchi held variousfinancial and accounting positions at E.I DuPontde Nemours Co. Ltd.North American Vaccine Inc. of Beltsville, Md.,has appointed Arthur Elliott chief operatingofficer. He comes from Merck & Co., where hehas held various positions since 1978.Rodney Dausch has joined Oncologix Inc. ofGaithersburg, Md., as vice president of financeand administration, the same position he held atOncor Inc.RiboGene Inc. has named two new vicepresidents: Arthur Goldberg and LeonardLachman. Both joined the Hayward, Calif.,company from Darby Pharmaceuticals Inc.,where Goldberg was executive vice presidentand senior director of scientific affairs andLachman was vice president and medicaldirector.Geron Corp. of Menlo Park, Calif., namedWilliam Andrews director of molecular biology,Federico Gaeta director of chemistry andMichael Kozlowski director of screening.Andrews was director of molecular biology andsenior scientist at Berlex Biosciences. Gaetawas with Cytel Corp. as director of chemistry,and Kozlowski came to Geron from Bristol-MyersSquibb Co., where he was project director of thecell-based screening group.Human Genome Sciences of Rockville, Md., hasappointed Bradley Lorimer senior vice presidentfor business development He was vice presidentof commercial development for Johnson &Johnson subsidiary Ortho Pharmaceutical Co.Gerson Greenburg has been appointed medicaldirector at Hemosol Inc. of Etobicoke, Ontario.He is surgeon-in-chief at The Miriam Hospital atBrown University in Providence, R.I.031794 People

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