We retrospectively investigated the role of serial serum-free light chain (sFLC) evaluations in 150 multiple myeloma (MM) patients treated with first-line bortezomib-based regimens. Baseline sFLC ratio (sFLCR) identified three groups of patients - normal, lightly abnormal (<100), and highly abnormal (≥100) - with different progression-free survival (PFS: 3-year estimate 72% versus 61% versus 44%, respectively, p = 0.03). Moreover, the achievement of a normal sFLCR correlated with extended PFS (49 versus 17 months, p < 0.0001) and overall survival (75 versus 43 months, p < 0.0001) as compared with abnormal sFLCR, a gain maintained in a multivariate analysis for PFS. At relapse, a high sFLCR was associated with earlier start of salvage therapy compared with sFLCR <100 (3-month probability: 89% versus 64%, p = 0.0426). In 20% of patients, sFLC escape preceded the conventional relapse by a median of 3.8 months. Our results highlight the role of sFLC assay in the prognosis and follow-up of MM.
Titolo: | Prognostic impact of serial measurements of serum-free light chain assay throughout the course of newly diagnosed multiple myeloma treated with bortezomib-based regimens | |
Autore/i: | TACCHETTI, PAOLA; CAVO, MICHELE; ROCCHI, SERENA; PEZZI, ANNALISA; PANTANI, LUCIA; BRIOLI, ANNAMARIA; TESTONI, NICOLETTA; TERRAGNA, CAROLINA; ZANNETTI, BEATRICE ANNA; MANCUSO, KATIA; MARZOCCHI, GIULIA; BORSI, ENRICA; MARTELLO, MARINA; RIZZELLO, ILARIA; ZAMAGNI, ELENA | |
Autore/i Unibo: | ||
Anno: | 2016 | |
Rivista: | ||
Digital Object Identifier (DOI): | http://dx.doi.org/10.3109/10428194.2015.1124994 | |
Abstract: | We retrospectively investigated the role of serial serum-free light chain (sFLC) evaluations in 150 multiple myeloma (MM) patients treated with first-line bortezomib-based regimens. Baseline sFLC ratio (sFLCR) identified three groups of patients - normal, lightly abnormal (<100), and highly abnormal (≥100) - with different progression-free survival (PFS: 3-year estimate 72% versus 61% versus 44%, respectively, p = 0.03). Moreover, the achievement of a normal sFLCR correlated with extended PFS (49 versus 17 months, p < 0.0001) and overall survival (75 versus 43 months, p < 0.0001) as compared with abnormal sFLCR, a gain maintained in a multivariate analysis for PFS. At relapse, a high sFLCR was associated with earlier start of salvage therapy compared with sFLCR <100 (3-month probability: 89% versus 64%, p = 0.0426). In 20% of patients, sFLC escape preceded the conventional relapse by a median of 3.8 months. Our results highlight the role of sFLC assay in the prognosis and follow-up of MM. | |
Data stato definitivo: | 2016-11-18T12:58:17Z | |
Appare nelle tipologie: | 1.01 Articolo in rivista |