Literatür Detay Bilgisi
Lenalidomide and Rituximab for the Initial Treatment of Patients With Chronic Lymphocytic Leukemia: A Multicenter Clinical-Translational Study From the Chronic Lymphocytic Leukemia Research Consortium.

Yazarlar : James DF, Werner L, Brown JR et al

Yayın : J Clin Oncol.

Yayın Yılı : 2014

Pubmed Linki :

Konu : Geriyatrik Hematoloji

Literatür İçeriği :  



Lenalidomide is an immunomodulatory agent with therapeutic activity in chronic lymphocytic leukemia (CLL). In preclinical models, lenalidomide acted synergistically with rituximab. The CLL Research Consortium initiated a phase II study to evaluate this combination in treatment-naive patients.


Lenalidomide was initiated at 2.5 mg/day and was escalated based on treatment tolerability to a maximum of 10 mg/day, for 21 days/cycle, for a maximum of seven cycles. Rituximab was administered at the end of cycle 1 and was continued for seven cycles. Patients received allopurinol and aspirin for prophylaxis.


Sixty-nine patients enrolled onto one of two age-specific strata; patients' median age was 56 and 70 years for arms A and B, respectively. Patients in the older-patient stratum more frequently had elevated serum beta-2 microglobulin levels, high-risk Rai stage, and were less likely to complete the maximum planned therapy. Adverse events were similar in the two arms. Nonhematologic toxicity was predominantly at grade 1/2, and neutropenia was the most common hematologic adverse event. The response rate for arm A was 95%, with 20% complete responses (CRs) and 20% nodular partial responses. Of arm B patients, 78% achieved a response, of which 11% were CRs. Median progression-free survival (PFS) was 19 months for the younger cohort and 20 months for the older cohort.


Intrapatient dose-escalation was safe. The majority of patients reached the maximum lenalidomide dose and experienced a response to a defined seven-cycle course of lenalidomide and rituximab therapy. Despite differences in baseline characteristics and the response rate between the two strata, the PFS did not differ.

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