* OSI Pharmaceuticals Inc., of Uniondale, N.Y., named Colin Goddard CEO.
* Oxis International Inc., of Portland, Ore., named to its scientific board Stefan Catsicas, director of the Institut de Biologie Cellulaire et de Morphologie at the Universtiy de Lausanne, Switzerland.
* A.M. Pappas & Associates, of Research Triangle Park, N.C., named Doreen Grech, manager of scientific and clinical development, and Christopher Porter manager of legal and administrative affairs.
* Photogen Technologies Inc., of Knoxville, Tenn., appointed to its scientific advisory council Daniel Tosteson, retired dean of the Harvard Medical School.