NEW YORK--(BUSINESS WIRE)--June 2, 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 a further update on the clinical data from a Phase I study of the safety and efficacy of Atiprimod, a novel azaspirane, for patients with advanced cancer. The trial, conducted at M.D. Anderson Cancer Center is an ongoing, single-center, open label, ascending dose Phase I trial of oral Atiprimod in patients with advanced cancer. Atiprimod was given by single dose orally for 14 days of every 28-day cycle.
