Successful induction of complete remission by gemtuzumab ozogamicin following chemotherapy in three patients with relapsed or refractory acute myeloid leukemia

: The institutional review board of our hospital approved FLAG-MG therapy (G-CSF 300 microg day 1-6, fludarabin 30 mg/m(2) day 2-6, Ara-C 1 g/m(2) day 2-6, mitoxantrone 5 mg/m(2) day 2-4, gemtuzumab ozogamicin 3 mg/m(2) day 9) for relapsed or refractory elderly acute myeloid leukemia patients. We conducted this therapy for two refractory patients aged 56 and 63 and one relapsed 58-year-old patient. All three patients were induced complete remission after FLAG-MG therapy without serious complications.