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    Home > Active Ingredient News > Blood System > LEUKEMIA RESEARCH: Retrospective analysis of the relationship between tumor burden parameters and clinical prognosis of patients with multiple myeloma eligible for transplantation before and after autologous stem cell transplantation

    LEUKEMIA RESEARCH: Retrospective analysis of the relationship between tumor burden parameters and clinical prognosis of patients with multiple myeloma eligible for transplantation before and after autologous stem cell transplantation

    • Last Update: 2021-12-26
    • Source: Internet
    • Author: User
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    Multiple myeloma (MM) is a hematological malignant tumor characterized by the proliferation of monoclonal plasma cells, accounting for about 10% of all hematological malignancies.


    After 4-6 courses of treatment with high-dose melphalan-induced autologous stem cell transplantation (ASCT), it is recommended to collect peripheral blood stem cells


    A retrospective examination of 57 patients with multiple myeloma who underwent autologous stem cell transplantation (ASCT) at the research institution


    Receiver operating characteristic curve (ROC) analysis showed that the reduction rate of quantitative serum monoclonal protein (M protein) before ASCT and the difference between participating and not participating in free light chain (dFLC) at 30 days after ASCT were the largest predictions for all patients Values ​​(area under the curve [AUC] are 0.


    Receiver operating characteristic curve (ROC) analysis showed that the reduction rate of quantitative serum monoclonal protein (M protein) before ASCT and the difference between participating and not participating in free light chain (dFLC) at 30 days after ASCT were the largest predictions for all patients Values ​​(area under the curve [AUC] are 0.


    Figure 1: All patients' serum: M protein (a, e), absolute immunoglobulin (b, f), iFLC (c, g) and dFLC (d, h) progression-free survival curve analysis


    Figure 1: All patients' serum: M protein (a, e), absolute immunoglobulin (b, f), iFLC (c, g) and dFLC (d, h) progression-free survival curve analysis


    Figure 2: Kaplan-Meier estimated the 30-day serum (a) protein reduction rate after ASCT and the progression-free survival of all patients with dFLC (a, b) and patients who could not reach VGPR (c) (b, c)


    Figure 2: Kaplan-Meier estimated the 30-day serum (a) protein reduction rate after ASCT and the progression-free survival of all patients with dFLC (a, b) and patients who could not reach VGPR (c) (b, c)


    Based on the cut-off values ​​of tumor burden parameters based on the ROC curve, the progression-free survival (PFS) of the high serum M protein reduction (≥90%) group was significantly better than the low serum M protein reduction group (<90%) (2 years PFS 79.


    Table: Univariate and multivariate analysis of PFS before and after ASCT (all patients, patients who did not achieve VGPR before ASCT)


    Table: Univariate and multivariate analysis of PFS before and after ASCT (all patients, patients who did not achieve VGPR before ASCT)


    Multivariate analysis determined that the decrease of serum M protein was an independent predictor of PFS before ASCT (hazard ratio [HR] 0.


    This study analyzed the tumor burden parameters of MM before and after ASCT to determine its relationship with patient prognosis, and showed that PFS is superior to patients whose serum m protein reduction rate is ≥90%, that is, those patients who reach VGPR before ASCT


    Early dFLC after transplantation can predict its prognosis


    Original source:

    Minakata D,Fujiwara SI,Murahashi R,et al.




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