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 ◽  
...  
BMJ Open ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. e046225
Author(s):  
Sarah Brown ◽  
Debbie Sherratt ◽  
Samantha Hinsley ◽  
Louise Flanagan ◽  
Sadie Roberts ◽  
...  

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.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 8001-8001
Author(s):  
Martin F. Kaiser ◽  
Andrew Hall ◽  
Katrina Walker ◽  
Ruth De Tute ◽  
Sadie Roberts ◽  
...  

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.


Blood ◽  
1996 ◽  
Vol 88 (5) ◽  
pp. 1780-1787 ◽  
Author(s):  
TE Witzig ◽  
MA Gertz ◽  
JA Lust ◽  
RA Kyle ◽  
WM O'Fallon ◽  
...  

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.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 8104-8104 ◽  
Author(s):  
Mary Kwok ◽  
Neha Korde ◽  
Elisabet E. Manasanch ◽  
Manisha Bhutani ◽  
Irina Maric ◽  
...  

8104 Background: Recent guidelines emphasize tailored follow-up and the need for clinical trials for high-risk smoldering myeloma (SMM). Emerging evidence from epidemiological studies suggests that immune-related conditions play a role in the causation of myeloma precursor disease (SMM and monoclonal gammopathy of undetermined significance; MGUS) and are of clinical importance for the risk of developing multiple myeloma. The aim of our study is to assess whether there is an altered biology in SMM/MGUS patients with preceding immune-related conditions. Methods: From our ongoing prospective SMM/MGUS natural history study, we evaluated 56 SMM and 60 MGUS patients. Information on autoimmunity was identified at baseline. All patients underwent extensive clinical and molecular characterization. At baseline, all patients underwent bone marrow biopsy evaluation using immunohistochemistry and multi-color flow cytometry of plasma cells. We assessed expression patterns of adverse plasma cell markers (CD56 and CD117), and applied risk models based on serum immune markers and bone marrow findings. Results: Among enrolled SMM and MGUS patients, 7 (12%) and 9 (15%) had a preceding autoimmune disorder. We found SMM patients with (vs. without) a preceding autoimmune disorder to have a substantially lower rate of CD56 (28% vs. 61%) and CD117 (28% vs. 61%) expressing plasma cells. When we compared the same markers in MGUS patients, CD56 and CD117 expression patterns were similar among patients with vs. without preceding autoimmunity (10% vs. 17%, and 50% vs. 48%). Using the Mayo Clinic risk model, none of the SMM patients with a preceding autoimmune disorder had high-risk features; in contrast, 3/41 (7%) of those without a preceding autoimmune disorder were high-risk SMM. Using the Mayo Clinic risk model, none of the MGUS patients were high-risk independent of autoimmune status. Conclusions: Our prospective clinical study found SMM patients with preceding immune-related conditions to have less adverse biology, supportive of epidemiological studies suggesting the risk of developing multiple myeloma is substantially lower in these patients.


Hematology ◽  
2021 ◽  
Vol 2021 (1) ◽  
pp. 673-681
Author(s):  
Alissa Visram ◽  
Joselle Cook ◽  
Rahma Warsame

Abstract The adage for smoldering myeloma (SMM) has been to observe without treatment, until criteria for active multiple myeloma were satisfied. Definitions and risk stratification models have become more sophisticated, with prognostication tailored to include high-risk cytogenetics as per the most recent International Myeloma Working Group 2020 risk model. Moreover, progress in defining genomic evolution and changes in the bone marrow microenvironment through the monoclonal continuum have given insight into the complexities underlying the different patterns of progression observed in SMM. Given recent data showing improved progression-free survival with early intervention in high-risk SMM, the current dilemma is focused on how these patients should be treated. This case-based article maps the significant advancements made in the diagnosis and risk stratification of SMM. Data from landmark clinical trials will also be discussed, and ongoing trials are summarized. Ultimately, we outline our approach to SMM and hope to impart to the reader a sound concept of the current clinical management of SMM.


2020 ◽  
Vol 51 (4) ◽  
pp. 193-202
Author(s):  
Artur Jurczyszyn ◽  
Ruth Hutch ◽  
Anna Waszczuk-Gajda ◽  
Anna Suska ◽  
Katarzyna Krzanowska ◽  
...  

AbstractMonoclonal gammopathy of undetermined significance (MGUS) is a clonal plasma cell disorder implicated as a precursor of multiple myeloma (MM), while smoldering multiple myeloma (SMM) is a malignant plasma cell disorder without evidence of a myeloma-defining event(s) (MDE). This is a review article of both disorders outlining their current definition and management according to the current standard of care. We focus on the pathogenesis of MM and the role of MGUS and SMM in the development of active MM. MGUS is a benign disorder and, subsequently, is followed by observation. In contrast, for SMM, although the current standard of care is “watch and wait”, this paper will explore the circumstances in which treatment should be considered to prevent MDE.


Blood ◽  
2020 ◽  
Author(s):  
Aaron Michael Goodman ◽  
Myung S Kim ◽  
Vinay Prasad

Over the last decade, two strategies have advanced the treatment of patients with multiple myeloma and precursor diseases. First, the definition has changed to include patients without end organ damage, who previously would not be treated. Second, there is widespread enthusiasm to treat high risk smoldering myeloma. In this commentary, we explore the evidence supporting these therapeutic expansions. While treating early adds cost and therapeutic burden, it remains unknown whether survival or health related quality of life is improved from early treatment. Herein, we consider the implications of diagnostic expansion in multiple myeloma.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e18574-e18574
Author(s):  
Muhammad Jawad Popalzai ◽  
Homam Alkaied ◽  
Maryah Mansoor ◽  
Arnold Brenner ◽  
Qun Dai

e18574 Background: Whole body skeletal x-ray is considered a gold standard for detecting bone lesions in patients with plasma cell disorders. PET/CT has been increasingly used but its role is yet to be defined. We conducted this study to compare the role of these two imaging modalities in evaluation of plasma cell disorders. Methods: This is single institution, retrospective study to evaluate the role of skeletal survey and PET/CT in patients with multiple myeloma, smoldering myeloma and MGUS. Patients’ records, imaging reports and subsequent management plan were reviewed and compared. Results: A total of 16 patients were reviewed. Among them, 11 patients had multiple myeloma, 2 had smoldering myeloma, and 3 had MGUS. 7/11 patients with multiple myeloma had concordant findings on skeletal survey and PET. 3 of these patients had negative skeletal surveys but had positive finding on PET/CT. PET/CT also identified plasmacytomas in 2 patients. In 2 patients with smoldering myeloma, both skeletal survey and PET/CT were negative. 2/3 patients with MGUS had lytic lesions on skeletal surveys which were not revealed by subsequent PET/CT’s. Both patients were observed without treatment and at 2 years follow up did not show disease progression. Conclusions: Our retrospective analysis showed that skeletal survey is still important for base-line evaluation of bone lesions in multiple myeloma and related monoclonal disorders. PET/CT is more sensitive for detection of bone lesions and can also detect extraosseous lesions such as plasmacytomas. Using tumor metabolic activity, PET/CT may improve diagnostic accuracy and is complementary to conventional skeletal survey. [Table: see text]


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