 A Less than a CCR after receiving GleevecTM for at least one year at a minimum dose of 400 mgday. A stable dose of GleevecTM must have been maintained for the last six months prior to eligibility testing OR B Stable cytogenetic status without CCR no cytogenic response or progression in three consecutive determinations over six months while on a stable dose of GleevecTM at a minimum of 400mgday for at least 6 months OR C Cytogenetic progression while on a stable dose of GleevecTM at a minimum dose of 400mgdayfor at least 2 consecutive evaluations at least one month apart 