By acquiring Enzon sigma-tau will gain a manufacturing facility in Indianapolis, Indiana, US and the marketed products Oncaspar, Adagen, DepoCyt and Abelcet.
The approval of Enzon’s stockholders comes after the company entered into a definitive agreement to sell the business to sigma-tau. Enzon will receive $300m from sigma-tau, plus an additional amount of up to $27m in milestone payments.
Furthermore, Enzon will receive royalties of five to 10 per cent on incremental net sales above a 2009 baseline.