NEW YORK--(BUSINESS WIRE)--Callisto Pharmaceuticals, Inc. (AMEX: KAL; FWB: CA4), a developer of new drug treatments in the fight against cancer and gastrointestinal disorders, announced today that Dr. Kunwar Shailubhai, Sr. VP Discovery Research, will give an oral presentation covering preclinical data on Guanilib at the 5th Cancer Drugs Research and Development conference, to be held February 21-22, 2008 in Phoenix, Arizona. Dr. Shailubhai’s presentation entitled “Guanilib, a guanylate cyclase-C (GC-C) agonist, is a new class of oral drug candidate for GI disorders and colon cancer” is scheduled for 1:00 pm on February 21, 2008. The 5th Cancer Drugs R&D conference is a leading forum gathering top researchers from academia and major pharmaceutical and biotechnology companies.