Prognostic Relevance of the Proportion of Residual Polyclonal Plasma Cells in the Diagnostic Bone Marrow of Newly Diagnosed Multiple Myeloma Patients Managed Without Autologous Stem Cell Transplantation

2019 ◽  
Vol 19 (10) ◽  
pp. e238-e239
Author(s):  
Prashant Tembhare ◽  
Prathyusha Gudapati ◽  
Sitaram Ghogale ◽  
Nitin Inamdar ◽  
Twinkle Khanka ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Bone Marrow ◽  
Stem Cell ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Autologous Stem Cell Transplantation ◽  
Plasma Cells ◽  
Newly Diagnosed ◽  
Prognostic Relevance

Flow Cytometric Disease Monitoring in Patients with Multiple Myeloma Undergoing Autologous Stem Cell Transplantation: A Retrospective Study.

Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 5014-5014
Author(s):  
Hong Liu ◽  
Constance M. Yuan ◽  
Raul C. Braylan ◽  
Myron N. Chang ◽  
John R. Wingard ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Bone Marrow ◽  
Flow Cytometry ◽  
Stem Cell ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Autologous Stem Cell Transplantation ◽  
Plasma Cells ◽  
Flow Cytometric ◽  
Before And After

Abstract The persistence of abnormal neoplastic plasma cells (APC) detectable in the bone marrow by flow cytometry at more than 3 months after autografting for multiple myeloma (MM) has been reported to predict early disease progression. In this study, we retrospectively reviewed the flow cytometric data from bone marrow aspirates of MM patients before and after autologous stem cell transplantation (ASCT). Light scatter properties and CD38 expression were used to identify plasma cells, and CD19/CD45/CD56 further distinguished normal plasma cells (NPC) from APC. Conventional response criteria (Blade criteria) and survival data were also collected. Forty-seven (47) patients treated with the same conditioning regimen were screened. Median follow up from ASCT was 19 months. After ASCT, 66% (31/47) patients achieved complete remission (CR)/very good partial remission (VGPR), as compared to only 36% (17/47) prior to ASCT. In 39 patients with data before and after ASCT, all 39 (100%) had a detectable abnormal plasma cell population identified phenotypically by flow cytometry prior to ASCT. Of these patient, 18/39 (46%) had greater than 30 APC and these patients had significantly shorter PFS independent of other covariates (1-sided P=0.036, 2 sided P=0.072, logrank). Twenty-six out of 39 patients (67%) also had detectable NPC. Following ASCT, the number of patients with detectable NPC increased to 35/39 (89%), while 3/39 (8%) had no detectable NPC and 1/39 (3%) had neither NPC or APC. The proportion of APC decreased significantly after transplant (81% prior to transplant vs. 59% post-transplant, P=0.008, 2 tailed t-test). Patients with a APC to NPC ratio < 1 post transplant has higher PFS rate at 2 year (54%) when compared to patients with higher APC/NPC ratio (29% PFS at 2 year), however, the difference is not statistically significant. In addition to the presence of APC, the ratio of APC to NPC, age, beta-2 microglobulin levels, and the presence of normal immunoglobulin levels were analyzed. Patients who achieved CR/VGPR after transplant had significantly longer PFS (23 months vs. 11 months, P=0.03). All other covariates were not found to be significant. Because only 10 deaths were observed, covariate analysis for OS was not feasible. In conclusion, the recovery of NPC after ASCT is seen in a substantial propotion of patients with a trend towards better PFS in patients with low APC/NPC ratio. On the other hand, the presence of a significant population of APC (> 30) prior to transplant appears to correlate with poorer PFS in MM patients.

Prospective, Randomized Study of Single Compared With Double Autologous Stem-Cell Transplantation for Multiple Myeloma: Bologna 96 Clinical Study

2007 ◽  
Vol 25 (17) ◽  
pp. 2434-2441 ◽  
Author(s):  
Michele Cavo ◽  
Patrizia Tosi ◽  
Elena Zamagni ◽  
Claudia Cellini ◽  
Paola Tacchetti ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Stem Cell ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Autologous Stem Cell Transplantation ◽  
Randomized Study ◽  
Prospective Randomized Study ◽  
Newly Diagnosed ◽  
Free Survival ◽  
To Receive

Purpose We performed a prospective, randomized study of single (arm A) versus double (arm B) autologous stem-cell transplantation (ASCT) for younger patients with newly diagnosed multiple myeloma (MM). Patients and Methods A total of 321 patients were enrolled onto the study and were randomly assigned to receive either a single course of high-dose melphalan at 200 mg/m2 (arm A) or melphalan at 200 mg/m2 followed, after 3 to 6 months, by melphalan at 120 mg/m2 and busulfan at 12 mg/kilogram (arm B). Results As compared with assignment to the single-transplantation group (n = 163 patients), random assignment to receive double ASCT (n = 158 patients) significantly increased the probability to attain at least a near complete response (nCR; 33% v 47%, respectively; P = .008), prolonged relapse-free survival (RFS) duration of 18 months (median, 24 v 42 months, respectively; P < .001), and significantly extended event-free survival (EFS; median, 23 v 35 months, respectively; P = .001). Administration of a second transplantation and of novel agents for treating sequential relapses in up to 50% of patients randomly assigned to receive a single ASCT likely contributed to prolong the survival duration of the whole group, whose 7-year rate (46%) was similar to that of the double-transplantation group (43%; P = .90). Transplantation-related mortality was 3% in arm A and 4% in arm B (P = .70). Conclusion In comparison with a single ASCT as up-front therapy for newly diagnosed MM, double ASCT effected superior CR or nCR rate, RFS, and EFS, but failed to significantly prolong overall survival. Benefits offered by double ASCT were particularly evident among patients who failed at least nCR after one autotransplantation.

Up-Front Therapy for Multiple Myeloma: A Survey of Practice Patterns in the USA.

Blood ◽  
2005 ◽  
Vol 106 (11) ◽  
pp. 5172-5172
Author(s):  
Kavita Natarajan ◽  
Gary H. Lyman ◽  
Oscar F. Ballester
Keyword(s):  
Multiple Myeloma ◽  
Clinical Trials ◽  
Stem Cell ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Autologous Stem Cell Transplantation ◽  
Initial Therapy ◽  
Newly Diagnosed ◽  
The Usa ◽  
Choice Of Therapy

Abstract Introduction: Several treatment programs are available for the initial management of patients with multiple myeloma, with no clear documented advantage(s) of one regimen over the others in terms of time to progression (TTP) or overall survival (OS). Materials and Methods: A questionnaire was mailed to 540 randomly selected members of ASH during early 2005. Practitioners were asked their choice of therapy for newly diagnosed myeloma patients during 2004, based on 2005 NCCN guidelines, including: 1) melphalan/prednisone (MP), 2) vincristine / adriamycin / decadron (VAD), 3) high-dose decadron (HD), 4) thalidomide / decadron (Thal/Dex), 5) doxyl / vincristine / decadron (DVD); the options of a clinical trial (CT) or “other” were also included. Physicians were asked about factors influencing their choice of therapy for individual patients and their recommendations for autologous stem cell transplantation as part of the initial treatment schema. Results: Surveys were returned by 123 physicians(19.2%), of which 93 contained evaluable data. Among responders, 52% were in private practice and 47% in academic institutions and 74% respondants reporting having been in practice for more than 10 years. A large majority of physicians (74%) utilized 3 or more different regimens, only 10.7% of responders used a single regimen for all of their patients. Thal/Dex was used by 87% of responders, with 47% of them recommending this regimen in ≥ 50% of their patients. MP, HD and VAD were used by 67.7%, 49% and 44% of responders, but only 10.7%, 4% and 3% respectively, recommended them to ≥ 50% of their patients. DVD was used by 25% of physicians. Of respondants, 64.5% did not accrued patients to clinical trials and only 7.5% of physicians accrued ≥ 50% of their patients to clinical trials. No significant differences in the choice of regimen were apparent based on years of practice. Physicians in academic centers tended to use HD (p =.002) and accrue patients to CT (p=. 001) more often than those in private practice. Factors identified as important in selecting initial therapy for individual patients included: age (92%); performance status (95%); prognostic factors, such as β2-microglobulin and cytogenetics (75%); and candidacy for stem cell transplantation (93%). Respondants consider autologous stem cell transplantation as part of the initial therapy for all eligible patients (47%), only those with responsive disease (42%) and normal renal function (30%); only in selected cases (76%). Conclusions: Thal/Dex appears to be currently the most commonly recommended up-front therapy for multiple myeloma in the USA, in spite of the lack of published data documenting patient benefit in terms of TTP and OS. A sizable proportion of physicians do not recommend autologous stem cell transplantation as part of the initial therapy of newly diagnosed myeloma patients despite confirmed randomized clinical trials documenting benefit.

Sequential VAD (Vincristine, Adriamycin, Dexamethasone) and VTD (VELCADE®, Thalidomide, Dexamethasone) Induction Followed by High-Dose Therapy with Autologous Stem Cell Transplantation and Maintenance Treatment with VELCADE for Newly Diagnosed Multiple Myeloma: Interim Results of Phase II Trial.

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 952-952 ◽  
Author(s):  
Sung-Soo Yoon ◽  
Hye Jin Kim ◽  
Dong Soon Lee ◽  
Hyeon Seok Eom ◽  
Jun Ho Jang ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Stem Cell ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Autologous Stem Cell Transplantation ◽  
Maintenance Treatment ◽  
Response Rate ◽  
High Dose ◽  
Hematologic Toxicity ◽  
Newly Diagnosed

Abstract Introduction Effective reduction of myeloma before autologous stem cell transplantation (ASCT) prolongs survival in multiple myeloma patients. Recently, incorporation of novel agents resulted in improved response rate and reduced side effect in newly diagnosed multiple myeloma. Method: Patients are planned to receive 2 cycles of VAD (vincristine 0.4mg D1-4, adriamycin 9mg/m2 D1-4, dexamethasone 40mg D1-4, 9–12 every 3 weeks), and VTD (bortezomib 1.3mg/m2 D1, 4, 8, 11, thalidomide 100mg daily, dexamethasone 40mg D1-4, 9–12 every 3 weeks). High dose melphalan (200mg/m2) is used as a conditioning regimen for ASCT. Bortezomib (1.3mg/m2) as a maintenance treatment is administered weekly x 4 times every 6 weeks for 4 cycles after ASCT. Response was assessed by EBMT criteria, with additional category of nCR. Adverse events were graded by the NCI-CTCAE, Version 3.0. Result: At this interim analysis, 60 patients have been entered into the ongoing trial, and efficacy could be assessed in 53 patients. After 2 cycles of VAD, response rate was 70%. After VTD, two patients showed further improvement with additional CR, and an overall response was 97% with 14% CR. Especially, patients with poor prognostic cytogenetics (n=6) all responded after VTD. So far, autologous stem cells were successfully collected in all 28 patients with a median CD34+ count of 7.8 x 106/kg (range, 2.17–44.7 x 106/kg). In 24 patients who underwent autologous stem cell transplantation, five patients gained additional CR. There was no progression in patients completed bortezomib maintenance (n=9, CR 77%). The median follow-up duration was 6 months, median time to response was 1.4 months, and median overall survival was not reached. Grade 3,4 hematologic toxicity was more frequently observed after VAD than VTD (anemia 15.8%, 4.6%, neutropenia 7.9%, 3.5%), and incidence of grade 2,3 peripheral neuropathy was low (VAD 3.5%, VTD 7%). Conclusion: Sequential VAD and VTD induction therapy in newly diagnosed multiple myeloma was highly effective, even in patients with poor prognostic cytogenetics, and did not prejudice stem cell collection. VTD could have contributed to increased RR and minimized side effects. An updated results will be presented at the ASH meeting. *Protocol Number: KMM51-NCT00378755.

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