- In 2nd CR or in 1st CR for high risk criteria [high risk criteria defined by: LAM 7; leukocytes > 30,000/mm3; chromosomal abnormalities: t(6,9); abnormalities of 11q23, 17p, 11q, 20q, 21q, -5, del(5q), -7/del7q, del 9q et inv 3q]