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Background: Multiple myeloma (MM), an incurable disease characterized by frequent relapses and a need for multiple treatments, often progresses to a relapse/refractory status resistant to all available drugs and drug classes. Bispecific antibodies, specifically BCMA T‐cell engagers, have emerged as effective treatments for MM, demonstrating impressive efficacy. However, these treatments can adversely affect the immune system, increasing vulnerability to infections. Methods/Results: This study evaluated the efficacy and safety of BCMA T‐cell engagers in 58 Swedish patients with poor MM prognosis. The patients exhibited a 69% overall response rate, with 69% survival and 60% progression‐free survival at 15 months. Conclusions: Despite the risk of infectious complications, the prognosis of MM patients can be significantly improved with vigilant monitoring and proactive management of infections. This real‐world data highlight the potential of BCMA T‐cell engagers in treating MM, emphasizing the need for careful patient monitoring to mitigate infection risks. [ABSTRACT FROM AUTHOR]

Simple Summary: Outcomes for high-risk myeloma patients are still poor, despite many advances in treatment. In addition, scarce data exist on double maintenance in transplant-eligible high-risk newly diagnosed multiple myeloma (NDMM) patients. We present the results of a prospective study on 120 transplant-eligible NDMM patients with prolonged cytogenetic risk-based all-oral maintenance with lenalidomide + ixazomib (IR) for high-risk patients and lenalidomide (R) alone for non-high-risk patients after ixazomib–lenalidomide–dexamethasone (IRD) induction plus autologous stem cell transplantation followed by IRD consolidation. We found that high-risk cytogenetics had no impact on the proportion of patients achieving sustained undetectable minimal residual disease or on the rate of progression-free survival with IR maintenance. Our data suggest that prolonged use of all-oral double maintenance with IR with reasonable adverse effects would be a potential option for high-risk myeloma patients. Scarce data exist on double maintenance in transplant-eligible high-risk (HR) newly diagnosed multiple myeloma (NDMM) patients. This prospective phase 2 study enrolled 120 transplant-eligible NDMM patients. The treatment consisted of four cycles of ixazomib–lenalidomide–dexamethasone (IRD) induction plus autologous stem cell transplantation followed by IRD consolidation and cytogenetic risk-based maintenance therapy with lenalidomide + ixazomib (IR) for HR patients and lenalidomide (R) alone for NHR patients. The main endpoint of the study was undetectable minimal residual disease (MRD) with sensitivity of <10−5 by flow cytometry at any time, and other endpoints were progression-free survival (PFS) and overall survival (OS). We present the preplanned analysis after the last patient has been two years on maintenance. At any time during protocol treatment, 28% (34/120) had MRD < 10−5 at least once. At two years on maintenance, 66% of the patients in the HR group and 76% in the NHR group were progression-free (p = 0.395) and 36% (43/120) were CR or better, of which 42% (18/43) had undetectable flow MRD <10−5. Altogether 95% of the patients with sustained MRD <10−5, 82% of the patients who turned MRD-positive, and 61% of those with positive MRD had no disease progression at two years on maintenance (p < 0.001). To conclude, prolonged maintenance with all-oral ixazomib plus lenalidomide might improve PFS in HR patients. [ABSTRACT FROM AUTHOR]

Background: The presence of minimal residual disease (MRD+) following autologous stem cell transplantation (ASCT) in multiple myeloma represents a poor prognostic factor for progression‐free survival (PFS) and overall survival (OS). Methods: At our department, we recommend lenalidomide maintenance for patients who are MRD+ after ASCT, while MRD‐negative (MRD−) patients, after information about the national guidelines, were not advised to follow this regimen. Results: Out of the total 228 patients, 175 received ASCT following first‐line induction (MRD− 92 (53%), MRD+ 83 (47%), at 2 months post‐ASCT), while 53 underwent ASCT after second‐line treatment (MRD− 27 (51%), MRD+ 26 (49%), at the same time point). Comparatively, MRD− patients who did not receive maintenance demonstrated better OS than MRD+ patients who received upfront ASCT and maintenance treatment (96% vs. 86%, p = 0.030, at 3 years). However, nonsignificant difference was found in PFS (76% vs. 62%, at 3 years). Furthermore, second‐line ASCT, MRD− non‐maintained patients exhibited significantly better PFS than MRD+ (71% vs. 27%, p > 0.001, at 3 years). However, OS was better but nonsignificant (96% vs. 76%, at 3 years). Fluorescence in situ hybridization (FISH) analysis was performed on 141 out of the 228 patients. Of these, 85 (60%) patients were deemed standard risk (SR), and 56 (40%) were classified as high risk (HR). In the SR cohort, MRD− patients exhibited better PFS and OS than MRD+ patients (71% vs. 59% and 100% vs. 85%, respectively). In the HR cohort, the MRD− patients showed superior PFS but similar OS compared to MRD+ patients (66% vs. 42% and 81% vs. 80%, respectively). Conclusions: Our results indicate that being MRD− is a more crucial prognostic factor for the 3‐year PFS and OS than the presence of high‐risk cytogenetic markers or undergoing maintenance treatment. The latter appears insufficient, particularly for MRD+ patients following ASCT in the second‐line setting, suggesting that these patients may require a more intensive treatment approach. [ABSTRACT FROM AUTHOR]

Objectives: Despite the effectiveness of newer drugs for the treatment of multiple myeloma (MM), the outcomes are further improved by subsequent autologous stem cell transplantation (ASCT). Data on effectiveness in older patients are limited. We compared outcomes in patients aged 65–75 years depending on whether they were treated with ASCT or not and compared those to outcomes in patients <65 years. Methods: This was a retrospective, single‐center study. We compared progression‐free survival (PFS) and overall survival (OS) for all MM patients below and above the age of 65 years treated ± ASCT at the Karolinska University Hospital between 2010 and 2020. PFS and OS were calculated by the Kaplan–Meier method. Variables affecting PFS and OS were evaluated using Cox regression model. Results: Both PFS and OS were improved in the group 65–75 years treated +ASCT compared to those treated pharmacologically (p = 0.008 and p < 0.001, respectively). There were no significant differences between patients <65 years and those 65–75 years treated with ASCT. Conclusion: The findings indicate that even patients >65 years should be evaluated as candidates for ASCT. An individualized approach supported by a frailty/geriatric assessment score could assist clinicians to select the appropriate treatment for each patient. [ABSTRACT FROM AUTHOR]

Introduction: Novel drugs and drug combinations have improved outcomes for multiple myeloma patients. However, subgroups of patients still have a poor progression‐free survival (PFS) and overall survival (OS). In an attempt to identify how the novel drugs affect the outcome in standard‐risk and high‐risk patients, respectively, we have investigated 715 multiple myeloma (MM) patients who have undergone high dose treatment followed by autologous stem cell transplantation at our center during 1995 ‐ 2020. Outcomes during three time periods, 1995‐1999 (period I), 2000‐2009 (period II), and 2010‐2020 (period III), were compared separately for standard‐risk and high‐risk patients. Risk stratification was based on chromosome analysis for periods II and III. Results: The whole cohort of patients showed significantly improved OS with time during the three periods being at a median of 5.8, 7.0, and 10.0 years, respectively. There is also a weak tendency for improved PFS, that is, a median of 2.4, 2.6, and 2.9 years, respectively, during the same periods. However, the separate analysis of standard‐risk and high‐risk patients showed that the overall improvement with time was due to improved standard‐risk patients (median OS 8.4 years for the period I and not reached for period II and III). In contrast, no significant improvement was seen in high‐risk patients. For patients with del17p, PFS was even worse during period III as compared to period II (median 1.6 vs 3.2 years respectively). Conclusion: Our results show that the dramatic improvement in outcome for MM patients during the last 20 years only applies for standard‐risk patients, while high‐risk MM patients still are doing poorly, indicating that the novel drugs developed during this time are preferentially effective in standard‐risk patients. New treatment modalities like CAR‐T cells, CAR‐NK cells, and/or bispecific antibodies should be tried in clinical studies early in the course of the disease, especially in patients with high‐risk cytogenetics. [ABSTRACT FROM AUTHOR]

Objectives: The most common translocation in multiple myeloma (MM) is t(11;14)(q13;q32), and its importance as prognostic factor has been controversial. The aim was to analyze its prognostic value. Method: In this retrospective study of 469 newly diagnosed myeloma patients, outcomes in patients with (11;14) and standard risk (t(11;14)SR) or high risk (t(11;14)HR) cytogenetics were compared to outcomes of patients without t(11;14) and SR (non‐t(11;14)SR) or HR (non‐t(11;14)HR), respectively. Results: Overall progression‐free survival (PFS) was shorter in t(11;14)SR than non‐t(11;14)SR (median 28.9 vs 35.3 months); however, the difference was not significant (P = .2). Overall survival (OS) did not differ significantly between the groups. In the subgroup of patients that did not receive high‐dose treatment, PFS was shorter for t(11;14)SR compared to non‐t(11;14)SR, 10.6 vs 24.6 months (P = .01). Although OS were shorter for t(11,14)SR compared to non‐t(11;14)SR (5‐year OS 41.7% vs 63.8%), the difference was not significant (P = .1). In HDT patients, no significant difference was observed for OS or PFS between those with or without t(11;14). Conclusion: This study shows that t(11;14) is associated with poorer outcome in MM, particularly in non‐high‐dose‐treated SR patients. It should be considered an intermediate or high‐risk marker in these patients. [ABSTRACT FROM AUTHOR]

Objectives: At our center, patients with multiple myeloma (MM) were treated upfront with bortezomib, cyclophosphamide, and dexamethasone (VCD) until cyclophosphamide was replaced with lenalidomide in the combination (VRD). These treatments have never been compared head‐to‐head in large real‐life patient material. Method: A retrospective analysis of patients treated with VRD and VCD in the first line, both with and without subsequent high‐dose treatment (HDT) and autologous stem cell transplantation. A total of 681 patients were included, 117 receiving VRD (71 with, 46 without HDT) and 564 receiving VCD (351 with, 213 without HDT). Results: Overall response rate (≥partial response) was higher with VRD compared to VCD in the entire VRD group (98% vs 88%, P < 0.001) and in the non‐HDT group (98% vs 79%, P < 0.001). Progression‐free survival (PFS) at 18 months was longer with VRD compared to VCD in the entire VRD group, the non‐HDT group and the HDT group (88% vs 63%, 82% vs 32% and 91% vs 73%, respectively). Overall survival at 18 months was better for VRD‐treated patients in the entire VRD group (95% vs 89%, P = 0.048). Conclusion: Upfront VRD gives better responses and longer PFS compared to VCD in MM patients with or without subsequent HDT. [ABSTRACT FROM AUTHOR]

Dear Editor, We have with interest read the response by Dr. Caravita di Toritto and Dr. Rago to our recently published article entitled "Conditioning with melphalan (Mel) 200 mg/m SP 2 sp and subsequent autologous stem cell transplantation (ASCT) improves progression-free survival (PFS) and overall survival (OS) in elderly multiple myeloma (MM) patients compared to standard of care". 9 Badros A, Barlogie B, Siegel E. Results of autologous stem cell transplant in multiple myeloma patients with renal failure. Autologous stem cell transplantation in multiple myeloma patients over 70 years: a GIMEMA Lazio working group experience in a retrospective case-control study. [Extracted from the article]

Loss of the chromosomal region 8p21 negatively effects survival in patients with multiple myeloma (MM) that undergo autologous stem cell transplantation (ASCT). In this study, we aimed to identify the immunological and molecular consequences of del(8)(p21) with regards to treatment response and bortezomib resistance. In patients receiving bortezomib as a single first line agent without any high-dose therapy, we have observed that patients with del(8)(p21) responded poorly to bortezomib with 50% showing no response while patients without the deletion had a response rate of 90%. In vitro analysis revealed a higher resistance to bortezomib possibly due to an altered gene expression profile caused by del(8)(p21) including genes such as TRAIL-R4, CCDC25, RHOBTB2, PTK2B, SCARA3, MYC, BCL2 and TP53. Furthermore, while bortezomib sensitized MM cells without del(8)(p21) to TRAIL/APO2L mediated apoptosis, in cells with del(8)(p21) bortezomib failed to upregulate the pro-apoptotic death receptors TRAIL-R1 and TRAIL-R2 which are located on the 8p21 region. Also expressing higher levels of the decoy death receptor TRAIL-R4, these cells were largely resistant to TRAIL/APO2L mediated apoptosis. Corroborating the clinical outcome of the patients, our data provides a potential explanation regarding the poor response of MM patients with del(8)(p21) to bortezomib treatment. Furthermore, our clinical analysis suggests that including immunomodulatory agents such as Lenalidomide in the treatment regimen may help to overcome this negative effect, providing an alternative consideration in treatment planning of MM patients with del(8)(p21). [ABSTRACT FROM AUTHOR]

Background: Renal impairment is a common feature in multiple myeloma and is considered a poor prognostic factor. Aim: To determine the impact of novel drugs (i.e. bortezomib, lenalidomide and thalidomide) in the treatment of myeloma patients with renal impairment. The primary endpoint was overall survival and secondary endpoints were time to next treatment and response. Methods: The study population included all patients diagnosed with treatment-demanding multiple myeloma January 2000 to June 2011 at 15 Swedish hospitals. Renal impairment was defined as an estimated glomerular filtration rate under 60 mL/min/1.73 m2. Result: The study population consisted of 1538 patients, of which 680 had renal impairment at diagnosis. The median overall survival in patients with renal impairment was 33 months, which was significantly shorter than 52 months in patients with normal renal function (P<0.001). Novel agents in first line improved overall survival (median 60 months) in non-high-dose treated patients with renal impairment (n = 143) as compared to those treated with conventional cytotoxic drugs (n = 411) (median 27 months) (P<0.001). In the multivariate analysis up front treatment with bortezomib was an independent factor for better overall survival in non-high-dose treated renally impaired patients. High-dose treated renally impaired patients had significantly better median overall survival than non-high-dose ones (74 versus 26 months) and novel drugs did not significantly improve survival further in these patients. Patients with renal impairment had both a shorter median time to next treatment and a lower response rate than those with normal renal function. However, novel drugs and high dose treatment lead to a significantly longer time to next treatment and the use of novel agents significantly improved the response rate of these patients. Conclusion: High dose treatment and novel drugs, especially bortezomib, can effectively overcome the negative impact of renal impairment in patients with multiple myeloma. [ABSTRACT FROM AUTHOR]

Background: Daratumumab, an anti-CD38 monoclonal antibody, has been approved for the treatment of multiple myeloma. Data are needed regarding the use of daratumumab for high-risk smoldering multiple myeloma, a precursor disease of active multiple myeloma for which no treatments have been approved., Methods: In this phase 3 trial, we randomly assigned patients with high-risk smoldering multiple myeloma to receive either subcutaneous daratumumab monotherapy or active monitoring. Treatment was continued for 39 cycles, for 36 months, or until confirmation of disease progression, whichever occurred first. The primary end point was progression-free survival; progression to active multiple myeloma was assessed by an independent review committee in accordance with International Myeloma Working Group diagnostic criteria., Results: Among the 390 enrolled patients, 194 were assigned to the daratumumab group and 196 to the active-monitoring group. With a median follow-up of 65.2 months, the risk of disease progression or death was 51% lower with daratumumab than with active monitoring (hazard ratio, 0.49; 95% confidence interval [CI], 0.36 to 0.67; P<0.001). Progression-free survival at 5 years was 63.1% with daratumumab and 40.8% with active monitoring. A total of 15 patients (7.7%) in the daratumumab group and 26 patients (13.3%) in the active-monitoring group died (hazard ratio, 0.52; 95% CI, 0.27 to 0.98). Overall survival at 5 years was 93.0% with daratumumab and 86.9% with active monitoring. The most common grade 3 or 4 adverse event was hypertension, which occurred in 5.7% and 4.6% of the patients in the daratumumab group and the active-monitoring group, respectively. Adverse events led to treatment discontinuation in 5.7% of the patients in the daratumumab group, and no new safety concerns were identified., Conclusions: Among patients with high-risk smoldering multiple myeloma, subcutaneous daratumumab monotherapy was associated with a significantly lower risk of progression to active multiple myeloma or death and with higher overall survival than active monitoring. No unexpected safety concerns were identified. (Funded by Janssen Research and Development; AQUILA ClinicalTrials.gov number, NCT03301220.)., (Copyright © 2024 Massachusetts Medical Society.)

Objectives: Despite the effectiveness of newer drugs for the treatment of multiple myeloma (MM), the outcomes are further improved by subsequent autologous stem cell transplantation (ASCT). Data on effectiveness in older patients are limited. We compared outcomes in patients aged 65-75 years depending on whether they were treated with ASCT or not and compared those to outcomes in patients <65 years., Methods: This was a retrospective, single-center study. We compared progression-free survival (PFS) and overall survival (OS) for all MM patients below and above the age of 65 years treated ± ASCT at the Karolinska University Hospital between 2010 and 2020. PFS and OS were calculated by the Kaplan-Meier method. Variables affecting PFS and OS were evaluated using Cox regression model., Results: Both PFS and OS were improved in the group 65-75 years treated +ASCT compared to those treated pharmacologically (p = 0.008 and p < 0.001, respectively). There were no significant differences between patients <65 years and those 65-75 years treated with ASCT., Conclusion: The findings indicate that even patients >65 years should be evaluated as candidates for ASCT. An individualized approach supported by a frailty/geriatric assessment score could assist clinicians to select the appropriate treatment for each patient., (© 2022 The Authors. European Journal of Haematology published by John Wiley & Sons Ltd.)