Rituximab in combination with high-dose dexamethasone for the treatment of relapsed/refractory chronic lymphocytic leukemia

Warning

This publication doesn't include Faculty of Medicine. It includes Central European Institute of Technology. Official publication website can be found on muni.cz.

Authors

SMOLEJ Lukáš DOUBEK Michael PANOVSKÁ Anna ŠIMKOVIČ Martin BRYCHTOVÁ Yvona BELADA David MOTYČKOVÁ Monika MAYER Jiří

Year of publication 2012
Type Article in Periodical
Magazine / Source Leukemia Research
MU Faculty or unit

Central European Institute of Technology

Citation
Web http://www.sciencedirect.com/science/article/pii/S0145212612002925#gs0025
Doi http://dx.doi.org/10.1016/j.leukres.2012.07.005
Field Oncology and hematology
Keywords Chronic lymphocytic leukemia Rituximab Dexamethasone Refractory disease Chemoimmunotherapy Corticosteroids
Attached files
Description High-dose methylprednisolone is active in treatment of relapsed/refractory chronic lymphocytic leukemia (CLL) but infectious toxicity is serious. The aim of this project was to retrospectively assess efficacy and safety of high-dose dexamethasone combined with rituximab (R–dex) in this setting. Patients and methods: We treated 54 patients (pts) with relapsed/refractory CLL using R–dex regimen at two tertiary centers. Two schedules of rituximab were used (not randomized – based on the choice of the center): group 1, rituximab 500 mg/m2 day 1, 8, 15, 22 (375 mg/m2 in 1st dose) every 4 weeks (n = 29); group 2, 500 mg/m2 day 1 (375 mg/m2 in 1st cycle) repeated every 3 weeks (n = 25). The target dose of dexamethasone was 40 mg on days 1–4 and 10–13 or 15–18. Rai III/IV stages were present in 82%, unmutated IgVH genes in 82%, del 11q in 38% and del 17p in 19% pts; 46% had bulky lymph nodes; 82% were pretreated with fludarabine and 29% with alemtuzumab. Results: Overall response rate/complete remissions were 62/21% (Group 1) and 72/4% (Group 2). In three patients, R–dex was successfully used for debulking before nonmyeloablative allogeneic stem cell transplantation. R–dex was particularly effective in improvement of anemia and thrombocytopenia (p = 0.0055 and p = 0.0036); B-symptoms resolved after treatment in 11/17 pts. Hematological toxicity was mild. Serious infections occurred in 32% pts. At the median follow-up of 9 and 10 months, median progression-free survival was 6 months in Group 1 and 6.9 months in Group 2 (p = ns); median overall survival was 14.1 months in Group 1 vs. not reached in Group 2 (p = ns). Conclusions: R–dex appears to be an active and feasible treatment for relapsed/refractory CLL. Infectious toxicity remains an important issue. Further investigation of this regimen in larger studies appears fully warranted.
Related projects:

You are running an old browser version. We recommend updating your browser to its latest version.

More info