European journal of haematology · 2015
Gender and BCR-ABL transcript type are correlated with molecular response to imatinib treatment in patients with chronic myeloid leukemia.
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Lin Han-Xin, Sjaarda Jenny, Dyck Jocob, Stringer Randa, Hillis Chris, Harvey Maria, Carter Ronald, Ainsworth Peter, Leber Brian, Pare Guillaume, Sadikovic Bekim
Аннотация
OBJECTIVES: Achieving a major molecular response (MMR) is the goal of imatinib therapy for chronic myeloid leukemia. However, the association between gender, BCR-ABL transcript type, and age with MMR is not well understood and often controversial.
METHODS: We retrospectively analyzed 166 patients who have been treated with imatinib for up to 10 yr.
RESULTS: Men had a lower MMR rate than women (63.3% vs. 81.6%, P = 0.006) and a shorter time to relapse (median 354 vs. 675 d, P = 0.049), while patients with b3a2 or with both b3a2 and b2a2 break point transcripts had higher MMR rate than those with b2a2 (81.8%, 77.1% vs. 60.7%, P = 0.023 for b3a2 vs. b2a2, P = 0.043 for both vs. b2a2). A striking difference was found between men with b2a2 and women with both b2a2 and b3a2 in terms of MMR rate (43.8% vs. 88.9%), MMR rate within 6 months (7.1% vs. 62.5%) and the time to MMR (median d 493 vs. 159, P = 0.036).
CONCLUSIONS: Both gender and BCR-ABL transcript, but not age, were significantly associated with the molecular response. Men with b2a2 represent a less favorable group in their response to imatinib treatment and may need alternative therapy regimen and closer monitoring.
METHODS: We retrospectively analyzed 166 patients who have been treated with imatinib for up to 10 yr.
RESULTS: Men had a lower MMR rate than women (63.3% vs. 81.6%, P = 0.006) and a shorter time to relapse (median 354 vs. 675 d, P = 0.049), while patients with b3a2 or with both b3a2 and b2a2 break point transcripts had higher MMR rate than those with b2a2 (81.8%, 77.1% vs. 60.7%, P = 0.023 for b3a2 vs. b2a2, P = 0.043 for both vs. b2a2). A striking difference was found between men with b2a2 and women with both b2a2 and b3a2 in terms of MMR rate (43.8% vs. 88.9%), MMR rate within 6 months (7.1% vs. 62.5%) and the time to MMR (median d 493 vs. 159, P = 0.036).
CONCLUSIONS: Both gender and BCR-ABL transcript, but not age, were significantly associated with the molecular response. Men with b2a2 represent a less favorable group in their response to imatinib treatment and may need alternative therapy regimen and closer monitoring.