期刊
BLOOD
卷 113, 期 14, 页码 3168-3171出版社
AMER SOC HEMATOLOGY
DOI: 10.1182/blood-2008-10-184853
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Although immunoglobulin V-H mutation status (IgV(H) MS) is prognostic in patients with chronic lymphocytic leukemia (CLL) who are treated with alkylating agents or single-agent fludarabine, its significance in the era of chemoimmunotherapy is not known. We determined the IgV(H) somatic mutation status (MS) in 177 patients enrolled in a phase 2 study of fludarabine, cyclophosphamide, and rituximab (FCR) and in 127 patients treated with subsequent chemoimmunotherapy protocols. IgV(H) MS did not impact significantly on the complete remission (CR) rate of patients receiving FCR or related regimens. However, CR duration was significantly shorter in patients with CLL that used unmutated IgV(H) than those whose CLL used mutated IgV(H) (TTP 47% vs 82% at 6 years, P < .001). In a multivariate model considering all baseline characteristics, IgV(H) MS emerged as the only determinant of remission duration (hazard ratio 3.8, P < .001). Our results suggest that postremission interventions should be targeted toward patients with unmutated IgV(H) status. (Blood. 2009; 113:3168-3171)
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