Design of Children's Cancer Group AML Treatment Studies 2891 and 2961. (A) CCG-2891. (B) CCG-2961. DCTER refers to dexamethasone, cytarabine, 6-thioguanine, etoposide, and rubidomycin (daunorubicin). Idarubicin (IDA) replaced daunorubicin in IDA-DCTER. FAMP, fludarabine; Ara-C, cytarabine. Intrathecal cytarabine was administered to all patients.