Loss of Chemokine Receptor Expression and Tetraspanins Is Correlated with Extramedullary Disease In Multiple Myeloma

Blood ◽  
2010 ◽  
Vol 116 (21) ◽  
pp. 2983-2983
Author(s):  
Zeba N Singh ◽  
Rebecca B Owens ◽  
Bijay Nair ◽  
John Shaughnessy ◽  
Bart Barlogie
Keyword(s):  
Multiple Myeloma ◽  
High Risk ◽  
Disease Progression ◽  
Plasma Cell ◽  
Chemokine Receptor ◽  
Chemokine Receptors ◽  
Antigen Expression ◽  
Risk Category ◽  
Down Regulation ◽  
Risk Categorization

Abstract Abstract 2983 Background: Extramedullary disease (EMD) portends poor prognosis in multiple myeloma (MM). Human MM cells show different chemokine receptor profiles at different sites of disease activity; down regulation in advanced stages results in impaired retention of MM cells in the bone marrow (BM) thus promoting EMD. Tetraspanins (Tspns) are cell surface proteins involved in cellular adhesion, motility, tumor invasion, etc. Tspn expression is often deregulated in cancer and correlates with metastasis in various cancers. In vitro studies show down regulation of Tspn CD82 in human myeloma cell line (HMCL) in end stage disease and reduced cell motility and invasive potential with re-induction of CD81/CD82. Epigenetic silencing of CD9 is reported to correlate with disease progression and cell survival. It is likely that decreased expression of these membrane proteins is related to disease dissemination in MM. Based on the known function of chemokine receptors and Tspns, we hypothesize that 1) EM spread of myeloma is mediated, at least in part by down regulation of Tspns CD81, CD82, and CD9, and chemokine receptors CXCR4 and CCR2 on the BM MM cells 2) The decreased expression is likely limited to a subpopulation of neoplastic cells. In this study we examine the expression of Tspns CD81, CD82, and CD9, chemokine receptors CXCR4, CCR2, and intercellular antigen CD56 on surface of BM myeloma cells, and correlate expression of these antigens with presence of EMD, and with the 70-gene expression profiling (GEP) determined risk category. Patients and Methods: We studied consecutive BM aspirate specimens from patients with MM with at least 10% aneuploid plasma cell population, or clearly light chain restricted if <10% or diploid. Four-color flow cytometry was performed on the BD FACSCanto II. Using CD138, CD38 and CD45 antibodies to gate, the bright CD138 cells were selected for further analysis using fluorescent-tagged antibodies to CD81, CD82, CD9, CD184 (CXCR4), and CD192 (CCR2). GEP was performed on the Affymetrix U133Plus 2.0 microarray platform (Santa Clara, CA) using CD138-enriched cells. Risk categorization was done using the 70 gene-discriminatory model: High Risk score >0.66 (Blood 2006; 108: 2020–2028). The molecular subtypes: HY, CD-1, CD-2, LB, MY, MS, MF, and PR, are as previously described. EMD was determined by PET scans. Active disease was defined as presence of ≥ 3 FDG-avid lesions on PET scan. The analysis was done using STATA and test of significance was done using chi2. Results: 77 patients were analyzed; Age: 41–88 years; M/F: 1.6:1; EMD: 12 (15.6%) without EMD: 65 (84.4%). Sites of EMD: soft tissue 8; lymph node 3; spleen 2; pleura 2; breast 1, muscle 1; nasopharynx 1; CNS 1; plasma cell leukemia 1. The GEP data for risk categorization was available in 75/77 patients. Table 1 shows the distribution of disease status, risk category and antigen expression in the EMD and no EMD groups. Summary: EMD is not uncommon (15.4% of patients in this study). High-risk disease was present in 58% of patients with EMD compared to only 22% in those without EMD. Expression of CD56, CD81, CD82, CD9, CXCR4, and CCR2 on individual patient samples was heterogeneous with respect to proportion of positive cells and the mean fluorescence intensity (MFI). Loss of surface CXCR4 was seen in 50% of EMD vs. 18% without EMD (p = 0.01), while loss of surface CD82 occurred in 75% of EMD vs. 58% without. Loss of CXCR4 expression was noted in 43% of high-risk group compared to 17% in the low risk (p = 0.04). Preliminary results suggest that EMD may be correlated with loss of surface antigens especially CXCR4 and CD82. It is likely that combinations of antigen loss are more relevant than single antigen losses. MFI analysis shows that loss of CXCR4 and CD82 is not related to decreased antigen density on individual cells but loss of a subset of plasma cells with antigen expression, suggesting clonal evolution. Down regulation of cytokine receptors or Tspns may be related to genomic events that occur with disease progression. Disclosures: No relevant conflicts of interest to declare.

scholarly journals MUKnine OPTIMUM protocol: a screening study to identify high-risk patients with multiple myeloma suitable for novel treatment approaches combined with a phase II study evaluating optimised combination of biological therapy in newly diagnosed high-risk multiple myeloma and plasma cell leukaemia

BMJ Open ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. e046225
Author(s):  
Sarah Brown ◽  
Debbie Sherratt ◽  
Samantha Hinsley ◽  
Louise Flanagan ◽  
Sadie Roberts ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
High Risk ◽  
Plasma Cell ◽  
Phase Ii ◽  
Whole Body ◽  
Cell Leukaemia ◽  
High Dose ◽  
Newly Diagnosed ◽  
Genetic Changes ◽  
Novel Treatment

IntroductionMultiple myeloma (MM) is a plasma cell tumour with over 5800 new cases each year in the UK. The introduction of biological therapies has improved outcomes for the majority of patients with MM, but in approximately 20% of patients the tumour is characterised by genetic changes which confer a significantly poorer prognosis, generally termed high-risk (HR) MM. It is important to diagnose these genetic changes early and identify more effective first-line treatment options for these patients.Methods and analysisThe Myeloma UK nine OPTIMUM trial (MUKnine) evaluates novel treatment strategies for patients with HRMM. Patients with suspected or newly diagnosed MM, fit for intensive therapy, are offered participation in a tumour genetic screening protocol (MUKnine a), with primary endpoint proportion of patients with molecular screening performed within 8 weeks. Patients identified as molecularly HR are invited into the phase II, single-arm, multicentre trial (MUKnine b) investigating an intensive treatment schedule comprising bortezomib, lenalidomide, daratumumab, low-dose cyclophosphamide and dexamethasone, with single high-dose melphalan and autologous stem cell transplantation (ASCT) followed by combination consolidation and maintenance therapy. MUKnine b primary endpoints are minimal residual disease (MRD) at day 100 post-ASCT and progression-free survival. Secondary endpoints include response, safety and quality of life. The trial uses a Bayesian decision rule to determine if this treatment strategy is sufficiently active for further study. Patients identified as not having HR disease receive standard treatment and are followed up in a cohort study. Exploratory studies include longitudinal whole-body diffusion-weighted MRI for imaging MRD testing.Ethics and disseminationEthics approval London South East Research Ethics Committee (Ref: 17/LO/0022, 17/LO/0023). Results of studies will be submitted for publication in a peer-reviewed journal.Trial registration numberISRCTN16847817, May 2017; Pre-results.

Depth of response and minimal residual disease status in ultra high-risk multiple myeloma and plasma cell leukemia treated with daratumumab, bortezomib, lenalidomide, cyclophosphamide and dexamethasone (Dara-CVRd): Results of the UK optimum/MUKnine trial.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 8001-8001
Author(s):  
Martin F. Kaiser ◽  
Andrew Hall ◽  
Katrina Walker ◽  
Ruth De Tute ◽  
Sadie Roberts ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
High Risk ◽  
Minimal Residual Disease ◽  
Plasma Cell ◽  
Residual Disease ◽  
Cell Leukemia ◽  
Ultra High Risk ◽  
Grade 3 ◽  
Minimal Residual

8001 Background: Patients with ultra high-risk (UHiR) newly diagnosed multiple myeloma (NDMM) and patients with plasma cell leukemia (PCL) continue to have dismal outcomes and are underrepresented in clinical trials. Recently, improved responses with anti-CD38 monoclonal antibody combination therapy have been reported for NDMM patients. We report here outcomes for NDMM UHiR and PCL patients treated in the OPTIMUM/MUKnine (NCT03188172) trial with daratumumab, cyclophosphamide, bortezomib, lenalidomide, dexamethasone (Dara-CVRd) induction, augmented high-dose melphalan (HDMEL) and ASCT. With final analysis follow-up surpassed in Feb 2021, we report here early protocol defined endpoints from induction to day 100 post ASCT. Methods: Between Sep 2017 and Jul 2019, 107 patients with UHiR NDMM by central trial genetic (≥2 high risk lesions: t(4;14), t(14;16), t(14;20), gain(1q), del(1p), del(17p)) or gene expression SKY92 (SkylineDx) profiling, or with PCL (circulating plasmablasts > 20%) were included in OPTIMUM across 39 UK hospitals. Patients received up to 6 cycles of Dara-CVRd induction, HDMEL and ASCT augmented with bortezomib, followed by Dara-VR(d) consolidation for 18 cycles and Dara-R maintenance. Primary trial endpoints are minimal residual disease (MRD) status post ASCT and progression-free survival. Secondary endpoints include response, safety and quality of life. Data is complete but subject to further data cleaning prior to conference. Results: Median follow-up for the 107 patients in the safety population was 22.2 months (95% CI: 20.6 – 23.9). Two patients died during induction due to infection. Bone marrow aspirates suitable for MRD assessment by flow cytometry (10-5 sensitivity) were available for 81% of patients at end of induction and 78% at D100 post ASCT. Responses in the intention to treat population at end of induction were 94% ORR with 22% CR, 58% VGPR, 15% PR, 1% PD, 5% timepoint not reached (TNR; withdrew, became ineligible or died) and at D100 post ASCT 83% ORR with 47% CR, 32% VGPR, 5% PR, 7% PD, 10% TNR. MRD status was 41% MRDneg, 40% MRDpos and 19% not evaluable post induction and 64% MRDneg, 14% MRDpos and 22% not evaluable at D100 post ASCT. Responses at D100 post ASCT were lower in PCL with 22% CR, 22% VGPR, 22% PR, 22% PD, 12% TNR. Most frequent grade 3/4 AEs during induction were neutropenia (21%), thrombocytopenia (12%) and infection (12%). Grade 3 neuropathy rate was 3.7%. Conclusions: This is to our knowledge the first report on a trial for UHiR NDMM and PCL investigating Dara-CVRd induction and augmented ASCT. Response rates were high in this difficult-to-treat patient population, with toxicity comparable to other induction regimens. However, some early progressions highlight the need for innovative approaches to UHiR NDMM. Clinical trial information: NCT03188172.

scholarly journals Phase II Trial of the Combination of Ixazomib, Lenalidomide, and Dexamethasone in High-Risk Smoldering Multiple Myeloma

Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 804-804 ◽  
Author(s):  
Mark Bustoros ◽  
Chia-jen Liu ◽  
Kaitlen Reyes ◽  
Kalvis Hornburg ◽  
Kathleen Guimond ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Bone Marrow ◽  
High Risk ◽  
Disease Progression ◽  
Board Of Directors ◽  
Rna Sequencing ◽  
Research Funding ◽  
Response Rate ◽  
Advisory Committees ◽  
Equity Ownership

Abstract Background. This study aimed to determine the progression-free survival and response rate using early therapeutic intervention in patients with high-risk smoldering multiple myeloma (SMM) using the combination of ixazomib, lenalidomide, and dexamethasone. Methods. Patients enrolled on study met eligibility for high-risk SMM based on the newly defined criteria proposed by Rajkumar et al., Blood 2014. The treatment plan was designed to be administered on an outpatient basis where patients receive 9 cycles of induction therapy of ixazomib (4mg) at days 1, 8, and 15, in combination with lenalidomide (25mg) at days 1-21 and Dexamethasone at days 1, 8, 15, and 22. This induction phase is followed by ixazomib (4mg) and lenalidomide (15mg) maintenance for another 15 cycles. A treatment cycle is defined as 28 consecutive days, and therapy is administered for a total of 24 cycles total. Bone marrow samples from all patients were obtained before starting therapy for baseline assessment, whole exome sequencing (WES), and RNA sequencing of plasma and bone marrow microenvironment cells. Moreover, blood samples were obtained at screening and before each cycle to isolate cell-free DNA (cfDNA) and circulating tumor cells (CTCs). Stem cell collection is planned for all eligible patients. Results. In total, 26 of the planned 56 patients were enrolled in this study from February 2017 to April 2018. The median age of the patients enrolled was 63 years (range, 41 to 73) with 12 males (46.2%). Interphase fluorescence in situ hybridization (iFISH) was successful in 18 patients. High-risk cytogenetics (defined as the presence of t(4;14), 17p deletion, and 1q gain) were found in 11 patients (61.1%). The median number of cycles completed was 8 cycles (3-15). The most common toxicities were fatigue (69.6%), followed by rash (56.5%), and neutropenia (56.5%). The most common grade 3 adverse events were hypophosphatemia (13%), leukopenia (13%), and neutropenia (8.7%). One patient had grade 4 neutropenia during treatment. Additionally, grade 4 hyperglycemia occurred in another patient. As of this abstract date, the overall response rate (partial response or better) in participants who had at least 3 cycles of treatment was 89% (23/26), with 5 Complete Responses (CR, 19.2%), 9 very good partial responses (VGPR, 34.6%), 9 partial responses (34.6%), and 3 Minimal Responses (MR, 11.5%). None of the patients have shown progression to overt MM to date. Correlative studies including WES of plasma cells and single-cell RNA sequencing of the bone microenvironment cells are ongoing to identify the genomic and transcriptomic predictors for the differential response to therapy as well as for disease evolution. Furthermore, we are analyzing the cfDNA and CTCs of the patients at different time points to investigate their use in monitoring minimal residual disease and disease progression. Conclusion. The combination of ixazomib, lenalidomide, and dexamethasone is an effective and well-tolerated intervention in high-risk smoldering myeloma. The high response rate, convenient schedule with minimal toxicity observed to date are promising in this patient population at high risk of progression to symptomatic disease. Further studies and longer follow up for disease progression are warranted. Disclosures Bustoros: Dava Oncology: Honoraria. Munshi:OncoPep: Other: Board of director. Anderson:C4 Therapeutics: Equity Ownership; Celgene: Consultancy; Bristol Myers Squibb: Consultancy; Takeda Millennium: Consultancy; Gilead: Membership on an entity's Board of Directors or advisory committees; Oncopep: Equity Ownership. Richardson:Celgene: Membership on an entity's Board of Directors or advisory committees, Research Funding; Oncopeptides: Membership on an entity's Board of Directors or advisory committees; Karyopharm: Membership on an entity's Board of Directors or advisory committees; Jazz Pharmaceuticals: Membership on an entity's Board of Directors or advisory committees, Research Funding; Amgen: Membership on an entity's Board of Directors or advisory committees; BMS: Research Funding; Janssen: Membership on an entity's Board of Directors or advisory committees; Takeda: Membership on an entity's Board of Directors or advisory committees, Research Funding. Ghobrial:Celgene: Consultancy; Takeda: Consultancy; Janssen: Consultancy; BMS: Consultancy.

scholarly journals Peripheral blood monoclonal plasma cells as a predictor of survival in patients with multiple myeloma [see comments]

Blood ◽  
1996 ◽  
Vol 88 (5) ◽  
pp. 1780-1787 ◽  
Author(s):  
TE Witzig ◽  
MA Gertz ◽  
JA Lust ◽  
RA Kyle ◽  
WM O'Fallon ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Prognostic Factors ◽  
High Risk ◽  
Plasma Cell ◽  
Plasma Cells ◽  
Cell Labelling ◽  
Newly Diagnosed ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Beta 2 Microglobulin

Abstract The purpose of this study was to quantitate the number and labeling index of monoclonal plasma cells in the blood of patients with newly diagnosed multiple myeloma (MM) to learn if these values were independent prognostic factors for survival. Patients were candidates for this study if they had untreated myeloma requiring therapy, were evaluated at our institution between 1984 and 1993, and had a sample of blood analyzed with a sensitive immunofluorescence technique for monoclonal plasma cells and the blood B-cell labelling index (BLI). The % blood monoclonal plasma cells (%BPC) and the BLI were analyzed along with stage, marrow plasma cell LI, % marrow plasma cells, calcium, creatinine, albumin, beta-2-microglobulin, and C-reactive protein as univariate and multivariate factors for survival. Eighty percent of the 254 patients accrued to this study had monoclonal BPC detected. The median % BPC was 6% and 57% (144 of 254) of patients had a high number (> or = 4%). Patients with > or = 4% BPC had a median survival of 2.4 years vs 4.4 years for those with < 4% BPC (P < .001). The BLI was also prognostic (P = .008). In a multivariate analysis, the % BPC, age, albumin, stage, marrow plasma cell LI, and the BLI were independent factors for survival. The %BPC and the marrow plasma cell LI best separated the group into low, intermediate, and high risk myeloma with median survivals of 52, 35, and 26 months, respectively. Patients with high %BPC were less likely to have lytic bone disease from their MM (P = .002). The %BPC and the BLI are independent prognostic factors for survival and are useful in identifying patients as low, intermediate, and high risk. Clonal cells in the blood should be quantified in future clinical trials for myeloma.

Inhibition of Usp9x Deubiquitinase Activity by WP1130 Reduces Mcl-1 Levels and Induces Apoptosis In Cells From Patients with Plasma Cell Dyscrasia and Drug-Refractory Multiple Myeloma

Blood ◽  
2010 ◽  
Vol 116 (21) ◽  
pp. 3005-3005 ◽  
Author(s):  
Hanshi Sun ◽  
Vaibhav Kapuria ◽  
Luke F. Peterson ◽  
Diane Giannola ◽  
Kandarpa Malathi ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Plasma Cell ◽  
Proteasomal Degradation ◽  
Plasma Cell Dyscrasia ◽  
Newly Diagnosed ◽  
Down Regulation ◽  
Rapid Reduction ◽  
Protein Levels ◽  
Advanced Therapy

Abstract Abstract 3005 Multiple myeloma (MM) patients are typically treated with a number of combinations of unconventional drugs that provide excellent and sometimes durable responses. However, most patients are expected to relapse or progress and relapsed disease is usually less sensitive to chemotherapy. Therefore, drug resistance remains a key concern in MM therapy. Some important clues regarding MM drug and apoptotic resistance have been obtained from biochemical and molecular studies of pro-survival genes. Mcl-1 is one member of the Bcl-2 family with strong anti-apoptotic activity. Mcl-1 binds pro-apoptotic proteins such as Bim and Bak, forming hetero-dimers to suppress apoptosis. Specific knockdown of Mcl-1 but not other anti-apoptotic Bcl-2 proteins (Bcl-2, Bcl-xL) induces apoptosis in MM cells and a critical level of Mcl-1 is essential to MM cell viability. Also, drug resistant MM patients are reported to express higher levels of Mcl-1 when compared to drug naïve patients. These observations suggest that Mcl-1 plays a key role in MM drug and apoptotic resistance. Mcl-1 is unique among survival proteins as its cellular protein level is primarily controlled by its ubiquitination and proteasomal degradation. Recently Usp9x, a high MW de-ubiquitinase (DUB), was shown to bind and stabilize Mcl-1 by mediating its de-ubiquitination and loss of recognition by the proteasome. Usp9x was also shown to be highly expressed in MM patients with short term progression-free survival. Analysis of Usp9x gene expression in MM patients treated at our center supports a correlation between elevated Usp9x expression (>4-fold over normal PBMCs) and poor patient prognosis. These observations suggest that agents that inhibit Usp9x activity may be effective in controlling Mcl-1 levels and have therapeutic impact in MM patients. Here we describe a small molecule Usp9x inhibitor, WP1130, that causes a rapid reduction in Mcl-1 protein levels and stimulates apoptosis in MM cells. We further demonstrate that the anti-tumor activity of WP1130 is mediated through inhibition of Usp9x and other active DUBs in B-cell tumors. WP1130-mediated inhibition of Usp9x activity promotes Mcl-1 ubiquitination leading to its rapid (1-4 hours) proteasomal degradation with subsequent induction of apoptosis. Pretreatment of MM cells with proteasome inhibitors (MG-132 or bortezomib) prior to WP1130 treatment blocked the down-regulation of Mcl-1, demonstrating proteasome involvement in regulation of Mcl-1 levels by WP1130. Primary MM tumor cells (bone marrow aspirates) derived from newly diagnosed and advanced therapy refractory patients were also screened for their responsiveness to WP1130 by DUB activity assays. Samples were obtained from a newly diagnosed plasmacytoma/plasma cell leukemia patient and 4 MM patients refractory to the Velcade/Doxorubicin/Dexamethasone (VDD) regimen. Usp9x activity was detected in 4 of 5 patient specimens and WP1130 treatment reduced Mcl-1 protein levels and induced apoptosis only in samples with active Usp9x. Furthermore, WP1130 completely eliminated CD138+ cells after 24 hours in MM patient specimens with active Usp9x while only an 11% reduction was measured in MM cells that did not exhibit Usp9x activity. Cytogenetic prognostic predictors (del13) did not distinguish between WP1130-responsive and non-responsive cells. Our results suggest that inhibition of Usp9x activity by WP1130 is associated with Mcl-1 down-regulation in MM cells. These results also suggest that drug-refractory MM patients with elevated Usp9x activity would likely benefit from Usp9x inhibitor-based therapy. Preliminary MM tumor studies have shown that WP1130 suppresses tumor growth in vivo and can be administered safely. Together, these results suggest that WP1130-mediated Usp9x inhibition may be an effective and novel approach in treating progressive or drug-refractory MM patients. Disclosures: Jakubowiak: Millenium, Celgene, Bristol-Myers Squibb, Johnson & Johnson Ortho-Centocor: Honoraria; Millennium, Bristol-Myers Squibb: Membership on an entity's Board of Directors or advisory committees; Millennium, Celgene, Centocor-Ortho Biotech: Speakers Bureau.

Genetic plasma cell signatures in high-risk smoldering myeloma versus multiple myeloma patients.

2016 ◽  
Vol 34 (15_suppl) ◽  
pp. 8003-8003 ◽  
Author(s):  
Sham Mailankody ◽  
Neha Korde ◽  
Mark J. Roschewski ◽  
Austin Christofferson ◽  
Martin Boateng ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
High Risk ◽  
Plasma Cell ◽  
Smoldering Myeloma

scholarly journals Evaluation of Functional and Cytogenetic High-Risk Multiple Myeloma Using Real-World Data

Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 4093-4093
Author(s):  
Ankit Kansagra ◽  
Eric Hansen ◽  
Andrew J. Belli ◽  
Stefanie Goran ◽  
Ching-Kun Wang
Keyword(s):  
Multiple Myeloma ◽  
High Risk ◽  
Disease Progression ◽  
Real World ◽  
Multivariate Analyses ◽  
Rapid Disease Progression ◽  
High Risk Patients ◽  
Risk Patients ◽  
High Risk Populations ◽  
Equity Ownership

Abstract Introduction: Multiple myeloma (MM) is a heterogeneous disease with wide variability in outcomes. The presence of cytogenetic abnormalities in MM is of critical importance for prognosis and risk stratification. However, patients who may or may not have sufficient cytogenetic abnormalities to classify as high-risk can still experience rapid disease progression despite therapy, or functional high risk (FHR) disease. These two high risk cohorts comprise vulnerable subpopulations who have a significant burden of disease, and it is critical that we understand the underlying patient characteristics and optimal treatment sequence. We sought to investigate these two high risk patient populations treated in the contemporary real-world practice setting. Methods: A total of 1719 patients were identified in the COTA real-world database as having been diagnosed with active MM on or after January 1, 2015 and classified as either FHR, cytogenetic high risk (CHR), or both. The COTA real-world database is a USA-based real-world evidence database comprised of longitudinal, Health Insurance Portability and Accountability Act (HIPAA)-compliant, data on the diagnosis, clinical management, and outcomes of patients with cancer. Of the 1719 patients, 1260 were identified to be FHR, defined as relapse &lt;18 months from initial active MM diagnosis. A total of 459 patients were identified as CHR, among which 347 were both FHR and CHR. CHR was defined as a patient having at least one of the following abnormalities: t(4;14), t(14;16), t(14;20), del(17p), 1q gain, or hypoploid. Line of therapy was applied programmatically using an algorithm based on International Myeloma Working Group criteria and clinical guidance. The primary outcome was time to next treatment (TTNT) calculated using the Kaplain Meier method. Univariate and multivariate analyses were conducted to understand predictors of rapid disease progression among high-risk patients. Results: In our real-world population, FHR patients tended to be slightly younger, African American, and treated predominantly in the academic setting (Table 1). First-line (1L) and second-line (2L) treatment patterns by category are shown in Table 2. A lower proportion of FHR patients received 1L immunomodulators as compared to the other high-risk groups, while almost half of the CHR patients received 1L stem cell transplant (SCT). In 2L, among patients not receiving 2L SCT, a higher proportion of CHR patients received a daratumamab-based treatment as compared to FHR (23.2% vs. 12.0%, respectively). We observed a longer median (95% CI) TTNT for high-risk patients receiving 2L daratumamab-based treatment as compared to patients who did not: 8.5 months (6.4-13.0) vs. 6.0 months (5.3-6.9), p=0.07 (Figure 1). Univariate and multivariate analyses showed age at diagnosis (HR: 0.98, CI: 0.97, 0.99), normal cytogenetics (HR: 0.78, CI: 0.63, 0.97), 1L immunomodulator (HR: 0.39, CI: 0.22, 0.69), 1L proteasome inhibitor (HR: 1.4, CI: 1.1, 1.8), and 1L SCT (HR: 0.22, CI: 0.15, 0.32) as significant predictors of rapid disease progression. Conclusions: Our study provides important insights comparing high risk populations with MM treated in the real-world setting. A higher proportion of CHR patients received 1L SCT and this provided the longest 1L TTNT as compared to other treatments. In 2L, among patients not receiving 2L SCT, we observed a trend towards significantly longer TTNT provided by dara-based treatment as compared to non-dara based treatment; however, our TTNT is lower than progression-free survival results observed in pivotal trials. We identified potential underlying differences in our patient populations that may be driving the predictors of rapid disease progression, including 1L SCT eligibility and renal disease, and these will be further investigated in propensity score matched populations. Future research will continue to explore optimal treatment sequences in high-risk populations with multiple myeloma to improve patient outcomes. These data highlight an urgent need to better predict FHR patients at diagnosis and develop clinical trials incorporating novel compounds in high risk patients. Figure 1 Figure 1. Disclosures Hansen: COTA, Inc.: Current Employment. Belli: COTA, Inc.: Current Employment, Other: Equity ownership. Goran: COTA, Inc.: Current Employment. Wang: COTA, Inc.: Current Employment, Other: Equity ownership.

Early versus late treatment for smoldering (asymptomatic) multiple myeloma: A systematic review.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 8593-8593
Author(s):  
Mubarak Salem Alahamdi ◽  
Jason Tay
Keyword(s):  
Systematic Review ◽  
Multiple Myeloma ◽  
High Risk ◽  
Disease Progression ◽  
Controlled Trial ◽  
Population Sample ◽  
Expectant Management ◽  
Therapeutic Interventions ◽  
Current Standard ◽  
Risk Of Disease

8593 Background: Expectant management remains the current standard of care for patients with smoldering multiple myeloma (SMM). Recent appreciation of "high risk" smoldering myeloma and the advent of novel therapeutic agents may allow one to better tailor the timing of therapeutic interventions. Herein, we performed a systematic review of the literature, summarizing the available randomized controlled trial (RCT) evidence for treatment of SMM. Methods: Our systematic search strategy includes MEDLINE, EMBASE, Cochrane Database, and relevant bibliographies where the following search concepts were used: RCT, SMM as defined as per the IMW Criteria, and treatment. Two reviewers independently extracted data on study design, population, sample size, treatment, clinical outcomes, and trial quality, were any discrepancies were discussed and resolved. Results: We identified 7 RCTs (2 articles and 5 abstracts) representing 869 patients. Six articles compared early versus deferred treatment for SMM; 2 studies compared early Melphalan plus Prednisone (MP) versus deferred MP. 3 studies compared bisphosphonates versus abstention while one study compared lenalidomide with dexamethasone to therapeutic abstention. Further, one study compared thalidomide with zoledronate to zoledronate alone. The median age is 66. Four studies received a Jadad score of 3 while three studies received a score of 2. Allocation concealment was described in four studies. Risk of disease progression was lower in patients receiving therapy compared to abstention OR 0.5(0.38-0.68). The events that demonstrate disease progression were not clearly defined. Further, the use of combination therapy compared to a single intervention decreased the risk of progression OR 0.23(0.11-0.51). No difference in OS was noted in patients receiving therapy compared to abstention OR 0.95(0.57-1.57). Conclusions: Early treatment of SMM compared with abstention decreases the risk of disease progression. However, OS was not improved by earlier intervention. High risk SMM may benefit from early intervention. The optimal intervention(s) remains to be defined, and further studies are warranted in this understudied population.

Risk of Progression and Survival in Newly Diagnosed Multiple Myeloma Patients Non-Responsive to Bortezomib-Based Induction Therapy: an Observational Multicenter International Study

Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 3488-3488
Author(s):  
Yael C Cohen ◽  
Erel Joffe ◽  
Noam Benyamini ◽  
Meletios A. Dimopoulos ◽  
Svetlana Trestman ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
High Risk ◽  
Disease Progression ◽  
Line Treatment ◽  
Second Line ◽  
Newly Diagnosed ◽  
Inclusion Criteria ◽  
First Line ◽  
Line Therapy ◽  
Induction Regimen

Abstract INTRODUCTION Botezomib-based induction is widely used and highly effective for the treatment of patients with newly diagnosed multiple myeloma (NDMM), with an overall response rate (ORR) of 75-80%. However, the outcomes of patients who fail to respond to this treatment remain unclear. The goal of this study was to investigate the outcome of patients with NDMM who failed to respond to bortezomib-based induction as compared to induction-responsive patients. METHODS We reviewed consecutive patients with NDMM between 1-JAN-2007 and 31-JAN-2014 in three participating centers in Greece and Israel. Inclusion criteria were measurable disease and an induction regimen containing bortezomib in combination with alkylators and/or corticosteroids. Patients who failed to achieve at least partial response in accordance with IMWG criteria after 4 cycles of therapy were classified as non-responsive and their baseline characteristics, next treatment, overall survival and progression following second-line treatment (2ndPFS) were assessed and compared to responsive patients. 2ndPFS was defined as the time from 2nd line treatment to disease progression, death or censoring. In the non-responsive group we limited this analysis to patients advancing to 2nd line within six months of initiation of induction. RESULTS Two hundred and ninety five patients met inclusion criteria and 74 (25%) were non-responsive to bortezomib-containing induction. Non-responsive patients were older, more anemic and had more often ISS-3, del17p and ECOG performance status 2-4 (table 1). Notably, these patients received less often a bi-weekly bortezomib schedule, a triple-drug regimen and high dose melphalan treatment at first line. Of the non-responsive patients 57% (n=42) received salvage treatment immediately following induction non-response, with an ORR of 59% (25/42); 12/31(39%) of those treated with salvage 2nd line and 13/15(87%) of those who underwent HDM at first line, responded. Failure to respond to bortezomib induction was associated with increased mortality (HR 5.06, 95% CI 2.80 – 9.16) (Fig. a), which remained significant in multivariate analysis. One- and 3-years OS in responsive vs. non-responsive patients were 97% vs 76% and 88% vs 53%, respectively (p<0.0001). 2ndPFS in patients who received salvage second line therapy immediately following induction failure was similar to that measured in bortezomib-responsive patients receiving 2nd-line therapy for disease progression, approaching 14 months. However, survival from time of salvage 2nd-line treatment was significantly lower among patients non-responsive to bortezomib-based induction compared to that measured in responsive patients (25 months vs. not reached, respectively, p=0.024; Fig. b). CONCLUSIONS Failure to respond to a bortezomib-based induction was found to be an independent risk factor for mortality. Despite the non-inferior 2ndPFS reported in these patients as compared with their bortezomib-responsive counterparts, survival remained significantly inferior. Possibly this difference is because non-responsive patients are less likely to respond to further proteasome inhibitor therapy at following relapses. Randomized controlled trials are needed to test whether intensification of induction and/or of further treatment may improve the poor prognosis of patients who fail to respond to bortezomib-based induction. Table 1: All patients n = 295 Induction non-responsive n = 74 Induction - responsive n =221 P value Demographic Median Age (yrs) 62.0 66.8 61.0 0.004 Gender Male Female 148 (50%) 147 (50%) 42 (55%) 33 (45%) 107 (48%) 114 (52%) 0.347 Patient / Disease ECOG 0-1 2-4 182 (63%) 107 (37%) 33 (45%) 40 (55%) 149 (69%) 67 (31%) <0.0001 ISS I II III 74 (28%) 95 (36%) 95 (36%) 9 (14%) 20 (33%) 33 (53%) 65 (32%) 75 (37%) 62 (31%) 0.002 High risk Cytogenietics Del17p High risk (%) Elevated LDH (%) Extramedullary disease (%) Hb≤ 10 gr% Creatinine > 2mg% 23 (14%) 69 (34%) 66 (27%) 23 (9.5%) 114 (43%) 64 (23%) 10 (26%) 13 (28%) 21 (36%) 5 (8.1%) 35 (54%) 20 (30%) 13 (10%) 56 (36%) 45 (24%) 18 (9.7%) 79 (39) 44 (21%) 0.031 0.297 0.091 0.805 0.044 0.094 Therapy Induction regimen VCD Vd VMP PAD 204 (69%) 49 (17%) 11 (4%) 19 (6%) 52 (57%) 18 (24%) 3 (4%) 4 (5%) 162 (73%) 31 (14%) 8 (4%) 15 (7%) 0.007 Any triplet 243 (82%) 55 (74%) 188 (85%) 0.051 Bortezomib schedule Bi-weekly Weekly 239 (81%) 56 (19%) 52 (70%) 22 (30%) 187 (85%) 34 (15%) 0.010 HDM at first line 143 (48%) 15 (20%) 128 (58%) <0.0001 Figure 1 Figure 1. Disclosures Dimopoulos: Celgene: Consultancy, Honoraria.

Rising Plasma Cell Proliferation By Ki67/CD138 Ratio at Relapse Is a Marker of High Risk Disease in Multiple Myeloma

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 2991-2991
Author(s):  
Peter A. Forsberg ◽  
Tomer M Mark ◽  
Sujitha Yadlapati ◽  
Adriana C Rossi ◽  
Roger N Pearse ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Bone Marrow ◽  
Cell Proliferation ◽  
Overall Survival ◽  
High Risk ◽  
Plasma Cell ◽  
Plasma Cells ◽  
Initial Therapy ◽  
First Line ◽  
High Risk Disease

Abstract Background: Assessment of malignant plasma cell cycling via plasma cell labeling index (PCLI) has been a validated prognostic tool in multiple myeloma (MM) for years but utilization remains limited. We recently developed a novel immunohistochemical (IHC) co-staining technique for CD138 and Ki67 expression to quantify plasma cells in active cycling. Previously presented results from newly diagnosed patients demonstrate that having an elevated ratio of plasma cells in active cycle by co-expression of CD138 and Ki67 (>5%) is associated with aggressive disease and poor outcomes including shorter overall survival (OS). The expansion of subclones with higher proliferative capacity following initial therapy may be an indicator of a higher risk relapse event and indicate poor prognosis. Here we assess MM patients (pts) with Ki67/CD138 co-staining on bone marrow samples both at diagnosis and relapse to assess the impact of changes in cell cycling ratio on outcomes with subsequent therapy and overall clinical course. Methods: A retrospective cohort study of pts with treated symptomatic MM was performed by interrogation of the clinical database at the Weill Cornell Medical College / New York Presbyterian Hospital (WCMC/NYPH). For inclusion in the analysis, pts must have had bone marrow evaluation with double-staining for Ki67 and CD138 by immunohistochemistry both at diagnosis and relapse. Pts must have completed their first line and relapse treatments at WCMC/NYPH. The Ki67% was calculated as the ratio of plasma cells expressing CD138 that were also found to express Ki67. Treatment outcomes were stratified and compared based on alterations in Ki67% between diagnosis and relapse. Results: We identified 37 pts with bone marrow sampling that was evaluated for CD138 and Ki67 co-expression both at diagnosis and at the time of relapse. These pts had undergone a median of 2 lines of prior treatment at the time of relapse bone marrow biopsy (range 1-7). 19 pts were identified to have a rising Ki67% between diagnosis and relapse defined at a 5% or greater increase, the other 18 pts had stable or decreased Ki67%. Pts with a rising Ki67% at relapse had a shorter OS with a median of 72 months vs not reached (p=0.0069), Figure 1. Pts who had rising Ki67% at relapse had shorter progression free survival (PFS) on first line treatment with a median of 25 vs 47 months (p=0.036), Figure 2. Additionally pts with rising Ki67% had a trend towards shorter PFS with the treatment they received after relapse with median of 12.5 vs 3.5 months (p=0.09). Relapse regimens were most commonly carfilzomib (n=9), pomalidomide (5) or ixazomib (4) based. 37% of pts (7/19) with rising Ki67% achieved PR or better on relapsed treatment vs 67% (12/18) with stable Ki67%. Discussion: The presence of clonal evolution and selection of higher risk clones under therapeutic pressure in multiple myeloma is a key feature of disease progression. The ability to improve risk stratification at the time of relapse may help guide clinical decision making to best suit individual patient needs. We have identified rising plasma cell proliferation through quantification of Ki67/CD138 co-expression at relapse to be a useful marker of high risk disease evolution. This appears to help identify the emergence of higher risk clones which are ultimately responsible for treatment resistant disease. Patients with rising Ki67% were more likely than patients with stable Ki67% to have early relapses to initial therapy, were less likely to achieve responses to relapse regimens or to maintain their response and had shorter overall survival. Further evaluation is needed to identify if different approaches to patients with increasing proliferation may improve outcomes in these patients. Figure 1. Figure 1. Figure 2. Figure 2. Disclosures Mark: Calgene: Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau. Rossi:Calgene: Speakers Bureau. Pearse:Celegen: Consultancy. Pekle:Celgene: Speakers Bureau; Takeda: Speakers Bureau. Perry:Celgene: Speakers Bureau; Takeda: Speakers Bureau. Coleman:Celgene: Speakers Bureau; Takeda: Speakers Bureau. Niesvizky:Celgene: Consultancy, Speakers Bureau.

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