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Bortezomib-based therapy for newly diagnosed multiple myeloma patients ineligible for autologous stem cell transplantation: Czech Registry Data

V. Sandecká, L. Pour, I. Špička, J. Minařík, J. Radocha, T. Jelínek, A. Heindorfer, P. Pavlíček, M. Sýkora, A. Jungová, P. Kessler, M. Wróbel, D. Starostka, J. Ullrychová, L. Stejskal, M. Štork, J. Straub, T. Pika, L. Brožová, S. Ševčíková, V....

. 2021 ; 107 (4) : 466-474. [pub] 20210728

Language English Country Great Britain

Document type Journal Article

Persistent link   https://www.medvik.cz/link/bmc22012133

OBJECTIVES: This study compared the use of bortezomib in different combination regimens in newly diagnosed multiple myeloma (NDMM) patients who were transplant ineligible. PATIENTS AND METHODS: We analyzed data from the Registry of Monoclonal Gammopathies (RMG) of the Czech Myeloma Group (CMG) to provide real-world evidence of outcome for 794 newly diagnosed MM transplant ineligible patients. The most frequently used regimen was VCd (bortezomib-cyclophosphamide-dexamethasone) (47.5%) over VMP (bortezomib-melphalan-prednisone) (21.7%), BDd (bortezomib-doxorubicin-dexamethasone) (9.8%), and VTd (bortezomib-thalidomide-dexamethasone) (2.9%). RESULTS: The overall response rate (ORR) was 69.2% (478/691), including 12.6% (≥ CR); 34.7% very good partial responses (VGPR); and 21.9% partial responses (PR). Among triplet regimens, VMP was the most effective regimen compared to VCd, BDd, and VTd. Median PFS was 22.3 vs. 18.5 vs. 13.7 vs. 13.8 mo, (P = .275), respectively, and median OS was 49 vs. 41.7 vs. 37.9 vs. 32.2 mo (P = .004), respectively. The most common grade 3-4 toxicities were anemia in 17.4% and infections in 18% of patients. CONCLUSION: Our study confirmed that bortezomib-based treatment is effective and safe in NDMM transplant ineligible patients, especially VMP, which was identified as superior between bortezomib-based induction regimens not only in clinical trials, but also in real clinical practice.

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$a Sýkora, Michal $u Department of Clinical Hematology, Hospital Ceske Budejovice, Ceske Budejovice, Czech Republic
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$a Starostka, David $u Department of Clinical Hematology, Hospital Havirov, Czech Republic
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