Onconova Therapeutics, Inc. announced that Dr. Adar Makovski Silverstein has joined the company as Director, Corporate Development. Dr. Makovski Silverstein joins Onconova from Amgen, where she worked as Sr. Licensing Associate, Business Development, External R&D. Prior to her time at Amgen, Dr. Makovski Silverstein interned as a member of the Research Program Management Team at Regeneron.