Incyte (Nasdaq:INCY) announced today it has entered into a definitive agreement to acquire Vega Therapeutics, Inc., a wholly owned subsidiary of Star Therapeutics, LLC, for $1.25 billion. Star Therapeutics will be eligible to receive up to $750 million in additional payments upon the achievement of sales milestones, for total potential consideration of up to $2.0 billion subject to customary closing adjustments. The proposed acquisition would add VGA039, a novel monoclonal antibody, to Incyte's hematology portfolio.