scholarly journals Efficacy and Safety of Isatuximab in Relapsed Refractory Multiple Myeloma: A Systematic Review

Blood ◽  
2020 ◽  
Vol 136 (Supplement 1) ◽  
pp. 8-9
Author(s):  
Mydah Sajid Hashmi ◽  
Ali Jaan ◽  
Muhammad Ans Sharif ◽  
Summera Aziz ◽  
Zahoor Ahmed ◽  
...  

Introduction: Multiple myeloma (MM) plasma cells express CD38, which is the target of isatuximab (ISA), a monoclonal antibody (mAb), approved for treatment. This systematic review aims to explore the efficacy and safety of ISA based regimens for the treatment of relapsed refractory MM (RRMM). Methods: A systematic search of the literature was performed by searching PubMed, Cochrane Library, Embase, and Clinicaltrials.gov. Our search strategy included MeSH (Medical Subject Headings) terms and keywords for multiple myeloma, and isatuximmab including trade name and generic name from the date of inception to June 5, 2020. Initial databases search yielded 371 articles. After excluding review articles, duplicates, and non-relevant articles, we included five clinical trials reporting the efficacy and safety of ISA for RRMM. Results: Among a total of 526 enrolled patients, 517 patients were evaluated, ISA was given as a monotherapy in 84 patients and given as a part of the combination regimen in 433 patients. In these studies, patients were refractory to multiple lines of therapy. In phase III trial, Attal et al. (2019) studied ISA + Pomalidomide (P) and dexamethasone (d) (n=307) compared with Pd (n=153) with an overall response rate (ORR) of 63% (n=97) in ISA-PD group compared to 32% (n=49) in PD group. At a median follow-up of 11·6 months, median progression-free survival (PFS) was 11·5 months (95% CI: 0·9-13·9) in the ISA-PD group versus 6·5 months (95% CI: 4·5-8·3) in the PD group; hazard ratio (HR) 0·596, (95% CI: 0·44-0·81; p=0·001). Martin et al. (2019) studied ISA as monotherapy in RRMM patients with a median of five prior therapy and observed an ORR of 20 % (n=17) and clinical benefit rate (CBR) of 16.7 % (n=14). For the high-risk cohort, the ORR was 16.7% (3/18), and CBR 27.8% and progression-free survival (PFS) was 2.9 months (95% confidence interval (CI) 1.87 to 5.49). In another phase 1b clinical trial by Mikhael et al. (2019) using ISA-Pd. It showed an ORR of 62.2% (n=28), and partial response (PR) of 35.6% (n=16) with median PFS of 17.6 months (95 % CI: 6.8-20.5 months). Richter et al. (2018) reported a phase 1b clinical trial of ISA in combination with carfilzomib with ORR of 69% (n=20), and PR of 41.4% (n=12). Martin et al. (2017) (phase 1b) studied ISA + lenalidomide + d. The ORR was 56% (n=29) and median PFS was 8.5 months (95 % CI: 4.73-16.59). The ORR of 31% was observed in the high-risk cohort. The majority of adverse effects were hematological: pancytopenia. The main non-hematological adverse effects encountered were infusion-related reactions, fatigue, upper and lower respiratory tract infections (table 02). Conclusion: Isatuximab showed promising responses for the treatment of RRMM, maximal responses were observed with combination regimens. Disclosures Anwer: Incyte, Seattle Genetics, Acetylon Pharmaceuticals, AbbVie Pharma, Astellas Pharma, Celegene, Millennium Pharmaceuticals.: Honoraria, Research Funding, Speakers Bureau.

Blood ◽  
2008 ◽  
Vol 112 (12) ◽  
pp. 4445-4451 ◽  
Author(s):  
Michael Wang ◽  
Meletios A. Dimopoulos ◽  
Christine Chen ◽  
M. Teresa Cibeira ◽  
Michel Attal ◽  
...  

AbstractThis analysis assessed the efficacy and safety of lenalidomide + dexamethasone in patients with relapsed or refractory multiple myeloma (MM) previously treated with thalidomide. Of 704 patients, 39% were thalidomide exposed. Thalidomide-exposed patients had more prior lines of therapy and longer duration of myeloma than thalidomide-naive patients. Lenalidomide + dexamethasone led to higher overall response rate (ORR), longer time to progression (TTP), and progression-free survival (PFS) versus placebo + dexamethasone despite prior thalidomide exposure. Among lenalidomide + dexamethasone-treated patients, ORR was higher in thalidomide-naive versus thalidomide-exposed patients (P = .04), with longer median TTP (P = .04) and PFS (P = .02). Likewise for dexamethasone alone-treated patients (P = .03 for ORR, P = .03 for TTP, P = .06 for PFS). Prior thalidomide did not affect survival in lenalidomide + dexamethasone-treated patients (36.1 vs 33.3 months, P > .05). Thalidomide-naive and thalidomide-exposed patients had similar toxicities. Lenalidomide + dexamethasone resulted in higher rates of venous thromboembolism, myelosuppression, and infections versus placebo + dexamethasone, independent of prior thalidomide exposure. Lenalido-mide + dexamethasone was superior to placebo + dexamethasone, independent of prior thalidomide exposure. Although prior thalidomide may have contributed to inferior TTP and PFS compared with thalidomide-naive patients, these parameters remained superior compared with placebo + dexamethasone; similar benefits compared with placebo + dexamethasone were not evident for thalidomide-exposed patients in terms of overall survival. Studies were registered at http://www.clinicaltrials.gov under NCT00056160 and NCT00424047.


2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Shenghao Wu ◽  
Cuiping Zheng ◽  
Songyan Chen ◽  
Xiaoping Cai ◽  
Yuejian Shi ◽  
...  

Objective. To investigate the efficacy and safety of the treatment of the newly diagnosed multiple myeloma (MM) patients with the therapy of subcutaneous (subQ) administration of bortezomib and dexamethasone plus thalidomide (VTD) regimen.Methods. A total of 60 newly diagnosed MM patients were analyzed. 30 patients received improved VTD regimen (improved VTD group) with the subQ injection of bortezomib and the other 30 patients received conventional VTD regimen (VTD group).The efficacy and safety of two groups were analyzed retrospectively.Results. The overall remission (OR) after eight cycles of treatment was 73.3% in the VTD group and 76.7% in the improved VTD group (P>0.05). No significant differences in time to 1-year estimate of overall survival (72% versus 75%,P=0.848) and progression-free survival (median 22 months versus 25 months;P=0.725) between two groups. The main toxicities related to therapy were leukopenia, neutropenia, thrombocytopenia, asthenia, fatigue, and renal and urinary disorders. Grade 3 and higher adverse events were significantly less common in the improved VTD group (50%) than VTD group (80%,P=0.015).Conclusions. The improved VTD regimen by changing bortezomib from intravenous administration to subcutaneous injection has noninferior efficacy to standard VTD regimen, with an improved safety profile and reduced adverse events.


Blood ◽  
2005 ◽  
Vol 106 (11) ◽  
pp. 5160-5160
Author(s):  
Miles Prince ◽  
Michael Adena ◽  
Dell Kingsford Smith ◽  
Judy Hertel

Abstract Aim: To perform a systematic review of the efficacy of monotherapy with bortezomib versus thalidomide in patients with relapsed or refractory multiple myeloma. Methods: Published English literature from 1966 to June 2005 (MEDLINE, EMBASE, Cochrane library), publication reference lists, Janssen-Cilag Pty Ltd data-on-file, and abstracts from recent multiple myeloma conferences were reviewed. Prospective studies containing at least a single arm of any treatment group with n ≥ 30 and using continuing or variable thalidomide dosing were included. Studies adding dexamethasone for non-responders were excluded. Outcomes were analysed on an intent-to-treat basis. Statistical pooling was performed where possible for the following outcome measures: primary outcome of response rate, defined by a serum M-protein reduction ≥50% (A) and strict (e.g. EBMT) criteria (B), and for the secondary outcomes of overall survival and progression-free survival. Results: One bortezomib (n=333, APEX, NEJM2005, 352; 2487–98) and 15 thalidomide (n=1007) studies were included. Patient baseline characteristics including age, gender, IgG:IgA, disease duration and β2M were well matched, except that 48% of bortezomib patients had received prior thalidomide. On an intent-to-treat basis, the overall estimate for response rate (A) was 53% for patients receiving bortezomib versus 32% for thalidomide (p<0.001, n=10 studies). For response rate (B) the estimate was 36% for patients receiving bortezomib versus 22% for thalidomide (p<0.001, n=4 studies). One-year survival was 81% for patients receiving bortezomib versus 67% for thalidomide (p<0.001, n=6 studies). Due to differences in disease monitoring and definitions of progression, it was not possible to compare results for progression-free survival. Conclusion: In patients with relapsed or refractory multiple myeloma, bortezomib achieved significantly higher response rates and longer one-year survival than thalidomide, despite 48% of bortezomib-treated patients having received prior thalidomide.


Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 2111-2111 ◽  
Author(s):  
Heinz Ludwig ◽  
Katja Weisel ◽  
Maria Teresa Petrucci ◽  
Xavier Leleu ◽  
Anna Maria Cafro ◽  
...  

Abstract Background Olaptesed, an L-stereo-isomer RNA aptamer, binds and neutralizes the chemokine CXCL12. By interaction with the chemokine receptors CXCR4 and CXCR7, CXCL12 is responsible for trafficking and homing of normal and malignant blood cells to the bone marrow. Preclinical studies have shown synergistic activity of CXCL12-targeting and anti-myeloma agents, specifically bortezomib (BTZ). Thus, targeting the myeloma niche may increase treatment efficacy. Aims This open label single arm study was conducted to assess the activity and safety of olaptesed when added to the combination of BTZ and dexamethasone (DEX) in patients with relapsed / refractory multiple myeloma (MM). Patients and Methods Twenty-eight relapsed or refractory MM patients (males:females 14:14) were enrolled and treated according to a dose titration design. Olaptesed was administered intravenously at doses increasing from 1 mg/kg to 2 mg/kg and 4 mg/kg in cycles 1, 2 and 3, respectively, at 1 hour prior to bortezomib administration. During cycles 4 to 8, olaptesed was dosed at the highest individually titrated dose. BTZ (1.3 mg/m2) was given on days 1, 4, 8 and 11 as intravenous injection. Oral DEX (20 mg) was added on the day of and on the day after BTZ administration. Response was evaluated based on the uniform IMWG response criteria (Rajkumar SV et. al. Blood 2011; 117: 4691-5). Plasma cell mobilization was studied after a pilot dose of 1 to 4 mg/kg olaptesed administered to the initial 10 patients before start of the regular treatment regimen. Results From Aug 2012 to Feb 2014 we enrolled 28 patients who had received a median of 2 (range 1-6) lines of prior therapy. Pretreatments were lenalidomide (LEN) in 20, BTZ in 14 and carfilzomib in 1 patient. Ten patients had autologous stem cell transplantations prior to entering this study. The patient population enrolled presented predominantly with advanced disease and with adverse outcome predictors. Ten patients had ISS stage III. High-risk cytogenetics were identified in 9 of the 20 patients (45%) with FISH testing available for t(4;14), t(14;16) and/or del17p. Eleven patients were refractory to their last prior treatment, which contained BTZ in 8 cases. After two early withdrawals, 26 patients were available for outcome evaluations. The median number of completed cycles was 8. Progression led to treatment termination in 8 patients. The dose of olaptesed was titrated to 4 mg/kg in all 18 patients treated for 3 or more cycles. The single dose of olaptesed administered to 10 pilot-patients effectively mobilized plasma cells, which increased by approximately 200% for up to 3 days. Based on “best response” of the 26 evaluable patients, the overall response rate was 73%: Two patients (8%) achieved a complete response (CR), 6 patients (23%) a very good partial response (VGPR) and 11 patients (42%) a partial response (PR). Minimal response was recorded in 2 patients (8%), 4 patients (15%) had stable disease and 1 patient (4%) progressive disease. In the 9 evaluable patients with high-risk cytogenetics, the clinical responses were similar. The ORR was 67% with VGPR in 3 (33%) and PR in 3 (33%) patients. Of the 14 patients pre-treated with BTZ, 1 had a CR and 8 a PR (ORR 64%). M-protein decreased rapidly from treatment cycle 1 to cycle 4 with a decrease of ≥50% being observed in 15 of the 26 evaluable patients. Figure 1 shows a waterfall plot of the maximum observed decrease in M-protein. Figure 1: Waterfall Plot of Maximum M-Protein Change Figure 1:. Waterfall Plot of Maximum M-Protein Change Median progression-free survival (PFS) of the evaluable population was 6.5 months. It was also 6.5 months in the 9 patients with high-risk cytogenetics and 6.3 months in the 14 patients pre-treated with BTZ (Figure 2). The median follow-up was 6.3 months. Figure 2: Progression-Free Survival Figure 2:. Progression-Free Survival Treatment with olaptesed in combination with BTZ-DEX was safe and well tolerated without any appreciable increase in adverse events. Conclusions A single dose of olaptesed effectively mobilized plasma cells. Olaptesed in combination with BTZ and DEX resulted in an ORR rate of 73% and PFS of 6.5 months. Response rates and PFS were similar in patients with or without high risk cytogenetic features or with or without previous exposure to BTZ. The combination regimen was well tolerated. These findings merit further exploration of this strategy in randomized trials. Disclosures Weisel: NOXXON Pharma AG: Consultancy. Petrucci:Celgene: Honoraria; Jannsen-Cilag: Honoraria; Sanofi: Honoraria; Bristol-Myers Squibb: Honoraria. Leleu:Janssen, Celgene, leopharma, Takeda, Amgen, Novartis: Honoraria, Membership on an entity's Board of Directors or advisory committees. Laurent:Bristol-Myers Squibb: Honoraria. Kruschinski:NOXXON Pharma AG: Employment. Dümmler:NOXXON Pharma AG: Employment. Riecke:NOXXON Pharma AG: Employment. Engelhardt:NOXXON Pharma AG: Consultancy.


Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 3946-3946
Author(s):  
Takeshi Yoroidaka ◽  
Hiroyuki Takamatsu ◽  
Mitsuhiro Itagaki ◽  
Satoshi Yoshihara ◽  
Kota Sato ◽  
...  

Abstract Background: Novel agents capable of inducing deeper responses dramatically improve the prognosis of patients with multiple myeloma (MM). Innovative technologies such as multiparameter flow cytometry (MFC) and next-generation sequencing (NGS) are utilized to assess minimal residual disease (MRD) for further stratification of patients who achieve a complete response (CR). EuroFlow-next-generation flow (EuroFlow-NGF) is one of the gold standard MFC methods. Recently, both NGF and NGS have been used in many clinical trials to assess MRD levels associated with progression-free survival (PFS) and overall survival (OS). The present study prospectively assessed MRD levels by both NGF and NGS to elucidate the prognostic impact of both methods and clarify their characteristics in MM patients in an autologous stem cell transplantation (ASCT) setting. Methods: We prospectively assessed the response in Japanese patients with newly diagnosed MM who underwent ASCT and lenalidomide-based maintenance therapy at multiple Japanese medical centers between September 2016 and July 2021. The diagnosis of MM and patients' responses to therapy were assessed using the IMWG criteria. Only patients with CR or stringent CR on days 100-365 post-ASCT were included, and bone marrow (BM) samples were obtained to assess MRD. Four milliliters of BM was divided equally. Cells derived from 2 mL BM were analyzed by the NGF method (Flores-Montero et al., Leukemia 2017) at Kanazawa University, and DNA extracted from the remaining 2 mL BM cells was processed by Adaptive Biotechnologies' standardized NGS-MRD assay (Seattle, WA) (Ching et al., BMC Cancer 2020) to assess MRD levels. MRD levels in BM were also monitored at 1-year (± 20 days) and 2-year (± 20 days) post-ASCT. The prognostic value of MRD levels in BM was assessed, and their correlation between NGF and NGS was compared at a cut-off value of 1×10 -5. Sustained MRD negativity was defined as the maintenance of MRD negativity in the BM for more than 6 months. BM cells were analyzed for high-risk cytogenetics (del(17p), t(4;14), and t(14;16)) by FISH. Results: A total of 60 patients (male = 29, female = 31) underwent bortezomib-based induction therapy, ASCT conditioned with high-dose melphalan, and lenalidomide-based maintenance. The median age was 62 years at the ASCT (range 36-71; ISS 1 [n = 13], 2 [n = 24], and 3 [n = 23]). Thirty-three percent of patients showed high-risk chromosomal abnormalities (del17p (n=11), t(4;14) (n=10), t(14;16) (n=2)), 3 patients had double hit diseases, and five patients had extramedullary diseases. With a median follow-up of 3 years, the 3-year progression-free survival (PFS) and 3-year overall survival (OS) rates were 69.2% and 94.2%, respectively. In total, 148 samples were analyzed using NGF and 138 were analyzed using NGS. The rates of MRD negativity at least once using NGF and NGS were 80% and 61%, respectively. The patients who achieved at least one MRD negativity exhibited significantly better 3-year PFS (82.9% by NGF; 84.8% by NGS) than those who did not (P < 0.0001, 0% by NGF; P = 0.005, 49.1% by NGS). Patients who sustained MRD negativity for more than 6 months also showed significantly better 3-year PFS (96.7% by NGF; 92.3% by NGS) compared with those without sustained MRD negativity (Figure; P < 0.0001, 37.1% by NGF; P < 0.01, 50.9% by NGS). The MRD levels between the NGF and NGS methods were significantly correlated with each other (r = 0.9295, P < 0.0001). Among the 17 patients who developed PD after ASCT, seven cases showed discrepancies in the MRD results and two cases in which one case was MRD-positive and the other was MRD-negative by both methods progressed with extramedullary diseases. Five of the seven cases were MRD-positive by NGS and MRD-negative by NGF. Conclusions: In this prospective comparison study of MRD assessment in BM cells using EuroFlow-NGF and NGS approaches, MRD levels highly correlated with each other, and MRD negativity and sustained MRD negativity were significantly associated with prolonged PFS. Multiple MRD assessments by NGF or NGS are essential for predicting durable remission and prolonged clinical outcomes. Figure 1 Figure 1. Disclosures Takamatsu: Bristol-Myers Squibb: Honoraria, Research Funding; Adaptive Biotechnologies, Eisai: Honoraria; SRL: Consultancy; Janssen: Consultancy, Honoraria, Research Funding. Yoshihara: Bristol-Myers Squibb: Honoraria; Janssen: Honoraria; Novartis: Honoraria. Matsumoto: Sanofi: Honoraria; Janssen: Honoraria; Ono: Honoraria; Bristol-Myers Squibb: Honoraria. Yamashita: Janssen: Honoraria; Bristol-Myers Squibb: Honoraria; celgene: Honoraria; Takeda: Honoraria. Fuchida: Takeda Pharmaceutical Co., Ltd.: Honoraria; Ono Pharmaceutical Co., Ltd.: Honoraria; Janssen Pharmaceutical K.K.: Honoraria; Sanofi: Honoraria; Bristol-Myers Squibb Co., Ltd.: Honoraria; Celgene Co., Ltd.: Honoraria. Hiragori: BML: Current Employment. Suzuki: Amgen: Consultancy, Honoraria, Research Funding; Takeda: Consultancy, Honoraria; ONO: Honoraria; Novartis: Honoraria; Sanofi: Honoraria; Abie: Honoraria; Janssen: Consultancy, Honoraria; Celgene: Consultancy, Honoraria, Research Funding; Bristol-Myers Squibb: Honoraria, Research Funding. Nakao: Symbio: Consultancy; Kyowa Kirin: Honoraria; Novartis Pharma: Honoraria; Alexion Pharma: Research Funding. Durie: Amgen: Other: fees from non-CME/CE services ; Amgen, Celgene/Bristol-Myers Squibb, Janssen, and Takeda: Consultancy.


BMJ Open ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. e048975
Author(s):  
Huan Wang ◽  
Jianxin Guo ◽  
Tianze Wang ◽  
Kai Wang ◽  
Zhuojun Wu ◽  
...  

ObjectiveTo assess the efficacy and safety of bevacizumab (BEV) in patients with glioma.DesignSystematic review and meta-analysis.ParticipantsAdults aged 18 years and above, whose histology was confirmed to be malignant glioma.Primary and secondary outcome measuresThe main indicators included progression-free survival (PFS) rate and overall survival (OS) rate, and the secondary indicators were adverse reactions.ResultsA total of 11 clinical centre trials were included in this study for meta-analysis, including 2392 patients. The results of the meta-analysis showed that the median PFS rate of the BEV group was significantly higher than that of the non-BEV group (p<0.00001). When comparing PFS between two groups, we found that the PFS in the BEV group was higher than that in the non-BEV group at 6 months (OR 3.31, 95% CI 2.74 to 4.00, p<0.00001), 12 months (OR 2.05, 95% CI 1.70 to 2.49, p<0.00001) and 18 months (OR 1.31, 95% CI 1.02 to 1.69, p=0.03). But at 24 months (OR 0.83, 95% CI 0.50 to 1.37, p=0.47), there was no significant difference between the two groups. At 30 months (OR 0.62, 95% CI 0.39 to 0.97, p=0.04), the PFS of the BEV group was lower than that of the non-BEV group. Moreover, The results showed that BEV had no significant effect on improving OS, but the adverse reaction in BEV group was significantly higher than that in non-BEV group.ConclusionThe evidence suggests that BEV can significantly prolong the PFS of patients with glioma within 18 months and shorten the PFS of patients after 30 months. This limitation may be related to the subgroup of patients, the change of recurrence mode, the optimal dose of drug, the increase of hypoxia, the enhancement of invasiveness and so on. Therefore, it is necessary to carry out more samples and higher quality large-scale research in the future.


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.


Blood ◽  
2019 ◽  
Vol 134 (5) ◽  
pp. 421-431 ◽  
Author(s):  
Ajai Chari ◽  
Joaquín Martinez-Lopez ◽  
María-Victoria Mateos ◽  
Joan Bladé ◽  
Lotfi Benboubker ◽  
...  

Abstract Patients with relapsed or refractory multiple myeloma (RRMM) have limited treatment options and poor survival outcomes. The increasing adoption of lenalidomide-based therapy for frontline treatment of multiple myeloma has resulted in a need for effective regimens for lenalidomide-refractory patients. This phase 1b study evaluated daratumumab plus carfilzomib and dexamethasone (D-Kd) in patients with RRMM after 1 to 3 prior lines of therapy, including bortezomib and an immunomodulatory drug; lenalidomide-refractory patients were eligible. Carfilzomib- and daratumumab-naïve patients (n = 85) received carfilzomib weekly on days 1, 8, and 15 of each 28-day cycle (20 mg/m2 initial dose, escalated to 70 mg/m2 thereafter) and dexamethasone (40 mg/wk). Of these, 10 patients received the first daratumumab dose as a single infusion (16 mg/kg, day 1 cycle 1), and 75 patients received a split first dose (8 mg/kg, days 1-2 cycle 1). Subsequent dosing was per the approved schedule for daratumumab. Patients received a median of 2 (range, 1-4) prior lines of therapy; 60% were lenalidomide refractory. The most common grade 3/4 treatment-emergent adverse events were thrombocytopenia (31%), lymphopenia (24%), anemia (21%), and neutropenia (21%). Infusion-related reactions were observed in 60% and 43% of single and split first-dose patients, respectively. Overall response rate was 84% (79% in lenalidomide-refractory patients). Median progression-free survival (PFS) was not reached; 12-month PFS rates were 74% for all treated patients and 65% for lenalidomide-refractory patients. D-Kd was well tolerated with low neutropenia rates, and it demonstrated deep responses and encouraging PFS, including in patients refractory to lenalidomide. The trial was registered at www.clinicaltrials.gov as #NCT01998971.


2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e20509-e20509
Author(s):  
Christopher Lemieux ◽  
Lori S. Muffly ◽  
David Joseph Iberri ◽  
Andrew Rezvani ◽  
Robert Lowsky ◽  
...  

e20509 Background: We evaluated outcomes of patients with multiple myeloma (MM) ≥ 70 years who were seen for Autologous Stem Cell Transplant (ASCT) consult, based on whether they underwent transplant vs. non-transplant treatment. Methods: 138 patients with MM ≥ 70 years (median 71, range 70-78) were evaluated in the BMT clinic from 1/2010 to 11/2019 for a transplant consult. Results: Of the 138 patients, 53 proceeded to ASCT. ASCT was not pursued in 85 patients despite most (79%) being eligible for transplant. Reasons for deferring ASCT in eligible patients included patient preference (48%, n = 32) and physician preference (52%, n = 35). 68 patients were seen during first-line therapy, of which 29 underwent upfront transplant. The remainder were seen at second-line or beyond. There was no difference in baseline characteristics among the 113 patients with available follow-up (ASCT = 53, non-ASCT = 60), including median age (71 vs. 72 years, p = 0.4), high-risk cytogenetics (41% vs. 31%, p = 0.4), high-risk HCT-CI (32% vs. 20% p = 0.2), and ISS stage III (34% vs. 27%, p = 0.6). In the 53 patients who underwent transplant, conditioning melphalan dose was 200 mg/m2 (75%, n = 40) and 140 mg/m2 (25%, n = 13). Day 100 transplant related mortality was 0% (n = 0). Progression-free survival (PFS) and overall survival (OS) were compared in patients who were seen for consultation within 1 year of diagnosis (n = 80). With a median follow-up of 27 months, median PFS amongst patients ≥ 70 years undergoing ASCT (n = 39) was 47 months compared to 34 months in the non-ASCT (n = 41) group, p = 0.006. Median OS was not reached in either group. Estimated 5-years OS was 76% in the ASCT group and 82% in the non-ASCT group (p = 0.6). There was no difference in PFS of patients ≥ 70 undergoing ASCT compared to a cotemporaneous cohort of patients < 70 (n = 639) from our institution (47 vs. 57 months, p = 0.3). Conclusions: Selected patients ≥ 70 years with MM undergoing ASCT have better PFS compared to patients with similar characteristics who do not undergo ASCT. ASCT is safe in this older population and outcomes were similar compared to younger patients. [Table: see text]


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