(ATO) and thalidomide. Seven patients responded including one complete hematologic and
cytogenetic response and one with regression in spleen size. Two trilineage responses
were seen in patients with inv (3)(q21q26. 2). Three of five patients who had high pre-
therapy EVI1 levels showed unexpectedly good responses while two died early in the first
cycle. In vitro studies using 32Dcl3 cells forced to express EVI1 confirmed increased …