Feasibility of peripheral blood stem cell rescue as intensification in elderly patients with acute myelocytic leukaemia: a pilot study from the Gimema Group. Gruppo Italiano Malattie Ematologiche Maligne Dell'Adulto.

Elderly patients with untreated acute myeloid leukaemia (AML, n = 47) tested the feasibility of out-patient consolidation therapy and post-consolidation treatment (for patients aged < 71 years) with autologous peripheral blood stem cell transplantation (APBSCT). Overall, 13 patients out of 24 (51%) who achieved complete remission (CR) were eligible for further treatment after consolidation. Five patients were primed with granulocyte colony stimulating factor (G-CSF); a suitable number of CD34+ cells were harvested in three patients and were actually autotransplanted. The toxicity of APBSCT was negligible. Psychosocial problems impaired treatment of some patients on an out-patient basis. Resistant disease, toxicity and logistic problems reduced the number of patients to whom this procedure could actually be applied.