- All adverse events (excluding alopecia, acne, rash) due to agents administered more than 2 weeks earlier should recover to =< grade 1; patients with hematologic malignancies are expected to have hematologic abnormalities at study entry; these abnormalities which are thought to be primarily related to the underlying leukemia, are not considered to be toxicities (adverse events [AE]) and do not need to resolve to =< grade 1