Sandecka V.,Interni Hematoonkologicka Klinika FN Brno |
Spicka I.,Interni klinika VFN |
Gregora E.,FN Kralovske Vinohrady |
Scudla V.,III. Interni Klinika FN a LF UP Olomouc |
And 10 more authors.
Onkologie | Year: 2011
Bortezomib (Velcade) is a representative of class of medicines called proteasome inhibitors. This drug represents quite new and unique medical treatment of the patients with multiple myeloma (MM). This article presents a retrospective analysis of effectiveness and adverse effects in patients with multiple myeloma treated at reference centers of CMG in the Czech Republic. A total 424 patients with multiple myeloma treated with bortezomib from June 2004 to June 2010 were evaluated. The median follow-up was 12,4 months. The mean age of patients was 66 year (34,1-86,5) and majority of them were patients with relapsed multiple myeloma. Of the total 424 patients, 205 patients had bortezomib as second line therapy (48,3 %). Assessment of terapeutic response was possible in 83,3 % of treated patients (353/424). Therapeutic response (defined as a ≥ 50 % decrease in the serum MIG) was achieved in 52,7 % (186/353). Among mentioned responses, complete response was obtained in 14,2 % (50/353). The most severe toxicity observed was peripheral neuropathy, grade 3 or higher was developed in 14 % (49/358). There was recorded a thrombocytopenia grade 3 or higher in 28,8 % (103/357), further occurance of infections grade 2 or higher in 33,6 % (121/359) and eventually we could observe increased number of thromboembolic disease as well. Rapid onset of therapeutic responses and high percentage of obtained complete responses are the main reasons of extraordinary clinical benefit of bortezomib. The most of adverse effects are well controllable by means of appropriate prophylactic precautions, short-term interruptions of treatment, followed by adjustments based on the valid recommendations.