PMID- 17096015 OWN - NLM STAT- MEDLINE DCOM- 20070209 LR - 20151119 IS - 0887-6924 (Print) IS - 0887-6924 (Linking) VI - 21 IP - 1 DP - 2007 Jan TI - Bortezomib in relapsed multiple myeloma: response rates and duration of response are independent of a chromosome 13q-deletion. PG - 164-8 AB - Studies of bortezomib in patients with relapsed multiple myeloma (MM) suggested that bortezomib may be active even in the presence of adverse prognostic factors. We therefore evaluated 62 patients with relapsed/refractory MM who were treated with single-agent bortezomib, and addressed the question whether or not the negative prognostic impact of unfavorable cytogenetic abnormalities may be overcome by bortezomib. By interphase fluorescence in situ hybridization (FISH), a deletion of chromosome 13q14 [del(13q14)] was present in 33 patients (53%). Overall response rates to bortezomib were similar in patients with and without del(13q14) (45 versus 55%; P=0.66), and rates of complete remission (CR) near CR were also not different between the two patient populations (18 versus 14%). Three patients had a t(4;14)(p16;q32) in addition to del(13q14), and all of them had a >50% paraprotein reduction. Median duration of response was 12.3 months in patients with del(13q14) compared with 9.3 months in patients with normal 13q-status (P=0.25), and survival was also not different between the two patient populations. Patients not benefiting from single-agent bortezomib were characterized by the combined presence of a del(13q14) and low serum albumin (median survival 4.6 months). Our results provide evidence for remarkable activity of bortezomib in MM with del(13q14). Patients who do not respond to bortezomib and consecutively have short time to treatment failure and overall survival can be identified by low serum albumin in addition to del(13q14) and should be considered for bortezomib combinations. FAU - Sagaster, V AU - Sagaster V AD - Department of Internal Medicine I, Clinical Division of Oncology, Medical University of Vienna, Vienna, Austria. FAU - Ludwig, H AU - Ludwig H FAU - Kaufmann, H AU - Kaufmann H FAU - Odelga, V AU - Odelga V FAU - Zojer, N AU - Zojer N FAU - Ackermann, J AU - Ackermann J FAU - Kuenburg, E AU - Kuenburg E FAU - Wieser, R AU - Wieser R FAU - Zielinski, C AU - Zielinski C FAU - Drach, J AU - Drach J LA - eng PT - Clinical Trial PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20061109 PL - England TA - Leukemia JT - Leukemia JID - 8704895 RN - 0 (Antineoplastic Agents) RN - 0 (Boronic Acids) RN - 0 (Pyrazines) RN - 69G8BD63PP (Bortezomib) SB - IM MH - Adult MH - Aged MH - Antineoplastic Agents/*therapeutic use MH - Boronic Acids/*therapeutic use MH - Bortezomib MH - *Chromosome Deletion MH - *Chromosomes, Human, Pair 13 MH - Cohort Studies MH - Humans MH - In Situ Hybridization, Fluorescence MH - Middle Aged MH - Multiple Myeloma/*drug therapy/genetics/mortality/pathology MH - Prognosis MH - Pyrazines/*therapeutic use MH - Recurrence MH - Survival Analysis EDAT- 2006/11/11 09:00 MHDA- 2007/02/10 09:00 CRDT- 2006/11/11 09:00 PHST- 2006/11/11 09:00 [pubmed] PHST- 2007/02/10 09:00 [medline] PHST- 2006/11/11 09:00 [entrez] AID - 2404459 [pii] AID - 10.1038/sj.leu.2404459 [doi] PST - ppublish SO - Leukemia. 2007 Jan;21(1):164-8. doi: 10.1038/sj.leu.2404459. Epub 2006 Nov 9.