NEW YORK--(BUSINESS WIRE)--April 19, 2006--Callisto Pharmaceuticals, Inc. (AMEX:KAL - News; FWB:CA4), a developer of new drug treatments in the fight against cancer and other major health threats, announced today that four abstracts on the Degrasyn class of drug candidates were subjects of poster presentations at the 97th annual meeting of the American Association of Cancer Research (AACR) in Washington D.C., April 1-5, 2006, a leading scientific conference in the field of cancer research.
