Imatinib mesylate (STI571) treatment in patients with chronic-phase chronic myelogenous leukaemia previously submitted to autologous stem cell transplantation.
Imatinib mesylate (STI571) is a highly effective and well-tolerated treatment for patients with chronic-phase chronic myeloid leukaemia (CML), but information on its efficacy and tolerance in intensively pretreated patients is scarce. Thirty-three chronic-phase CML patients who were resistant or intolerant to interferon (IFN) and had been previously submitted to autologous stem cell transplantation were treated with imatinib for a median of 14 months (range: 6-19 months). Seven patients were in haematological response (HR) at the start of treatment; the remaining 26 attained a HR at a median of 3 weeks (range: 1-4 weeks). Major cytogenetic response rates at 3, 6 and 12 months were 42%, 45% and 55%, respectively, including 21%, 24% and 33% complete responses. Grade 3-4 neutropenia, thrombocytopenia and anaemia developed in 33%, 27% and 12% of patients respectively. Non-haematological toxicity included superficial oedema (21% of patients), gastrointestinal symptoms (18%), muscle cramps (15%), skin rash and liver enzyme increase (3% each). These results were not significantly different from those in 65 chronic-phase CML patients, resistant or intolerant to interferon without a previous ASCT, who were included in the same protocol. Imatinib mesylate is effective and safe in chronic-phase CML patients with a previous history of intensive treatment.
Cervantes
Francisco
F
Haematology Department, Hospital Clínic, IDIBAPS, Barcelona, Spain. fcervan@clinic.ub.es
Hernández-Boluda
Juan-Carlos
JC
Odriozola
Jesús
J
Camós
Mireia
M
Villalón
Lucía
L
Martínez-Climent
José-Angel
JA
del Campo
Raquel
R
García-Conde
Javier
J
Montserrat
Emilio
E
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D001549:Benzamides; D018572:Disease-Free Survival; D005260:Female; D018380:Hematopoietic Stem Cell Transplantation; D006801:Humans; D000068877:Imatinib Mesylate; D007372:Interferons / Q000627:therapeutic use; D015464:Leukemia, Myelogenous, Chronic, BCR-ABL Positive / Q000188:drug therapy* / Q000628:therapy; D015466:Leukemia, Myeloid, Chronic-Phase / Q000188:drug therapy* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D010879:Piperazines / Q000627:therapeutic use*; D011743:Pyrimidines / Q000627:therapeutic use*; D017211:Treatment Failure; D016896:Treatment Outcome
D000970:Antineoplastic Agents; D001549:Benzamides; D010879:Piperazines; D011743:Pyrimidines; D000068877:Imatinib Mesylate; D007372:Interferons