Revistas
Revista:
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
ISSN:
1422-0067
Año:
2022
Vol.:
23
N°:
17
Págs.:
9895
Multiple myeloma (MM) is the second most common haematological malignancy and remains incurable despite therapeutic advances. 18F-FDG (FDG) PET/CT is a relevant tool MM for staging and it is the reference imaging technique for treatment evaluation. However, it has limitations, and investigation of other PET tracers is required. Preliminary results with L-methyl-[11C]- methionine (MET), suggest higher sensitivity than 18F-FDG. This study aimed to compare the diagnostic accuracy and prognostic value of 1FDG and MET in MM patients. We prospectively compared FDG and MET PET/CT for assessment of bone disease and extramedullary disease (EMD) in a series of 52 consecutive patients (8 smoldering MM, 18 newly diagnosed MM and 26 relapsed MM patients). Bone marrow (BM) uptake patterns and the detection of focal lesions (FLs) and EMD were compared. Furthermore, FDG PET parameters with known MM prognostic value were explored for both tracers, as well as total lesion MET uptake (TLMU). Median patient age was 61 years (range, 37-83 years), 54% were male, 13% of them were in stage ISS (International Staging System) III, and 31% had high-risk cytogenetics. FDG PET/CT did not detect active disease in 6 patients, while they were shown to be positive by MET PET/CT. Additionally, MET PET/CT identified a higher number of FLs than FDG in more than half of the patients (63%). For prognostication we focussed on the relapsed cohort, due to the low number of progressions in the two other cohorts. Upon using FDG PET/CT in relapsed patients, the presence of more than 3 FLs (HR 4.61, p = 0.056), more than 10 FLs (HR 5.65, p = 0.013), total metabolic tumor volume (TMTV) p50 (HR 4.91, p = 0.049) or TMTV p75 (HR 5.32, p = 0.016) were associated with adverse prognosis. In MET PET/CT analysis, TMTV p50 (HR 4.71, p = 0.056), TMTV p75 (HR 6.27, p = 0.007), TLMU p50 (HR 8.8, p = 0.04) and TLMU p75 (HR 6.3, p = 0.007) adversely affected PFS. This study confirmed the diagnostic and prognostic value of FDG in MM. In addition, it highlights that MET has higher sensitivity than FDG PET/CT for detection of myeloma lesions, including FLs. Moreover, we show, for the first time, the prognostic value of TMTV and TLMU MET PET/CT in the imaging evaluation of MM patients.
Autores:
Encinas, C.; Hernández-Rivas, J. A.; Oriol, A.; et al.
Revista:
BLOOD CANCER JOURNAL
ISSN:
2044-5385
Año:
2022
Vol.:
12
N°:
4
Págs.:
68
Infections remain a common complication in patients with multiple myeloma (MM) and are associated with morbidity and mortality. A risk score to predict the probability of early severe infection could help to identify the patients that would benefit from preventive measures. We undertook a post hoc analysis of infections in four clinical trials from the Spanish Myeloma Group, involving a total of 1347 patients (847 transplant candidates). Regarding the GEM2010 > 65 trial, antibiotic prophylaxis was mandatory, so we excluded it from the final analysis. The incidence of severe infection episodes within the first 6 months was 13.8%, and majority of the patients experiencing the first episode before 4 months (11.1%). 1.2% of patients died because of infections within the first 6 months (1% before 4 months). Variables associated with increased risk of severe infection in the first 4 months included serum albumin <= 30 g/L, ECOG > 1, male sex, and non-IgA type MM. A simple risk score with these variables facilitated the identification of three risk groups with different probabilities of severe infection within the first 4 months: low-risk (score 0-2) 8.2%; intermediate-risk (score 3) 19.2%; and high-risk (score 4) 28.3%. Patients with intermediate/high risk could be candidates for prophylactic antibiotic therapies.
Autores:
Dhakal, B.; Shah, N.; Kansagra, A.; et al.
Revista:
TRANSPLANTATION AND CELLULAR THERAPY
ISSN:
2666-6375
Año:
2022
Vol.:
28
N°:
6
Págs.:
284 - 293
Over the past decade, therapeutic options in multiple myeloma (MM) have changed dramatically. Given the unprecedented efficacy of novel agents, the role of hematopoietic cell transplantation (HCT) in MM remains under scrutiny. Rapid advances in myeloma immunotherapy including the recent approval of chimeric antigen receptor (CAR) T-cell therapy will impact the MM therapeutic landscape. The American Society for Transplantation and Cellular Therapy convened an expert panel to formulate clinical practice recommendations for role, timing, and sequencing of autologous (auto-HCT), allogeneic (allo-HCT) and CAR T-cell therapy for patients with newly diag-nosed (NDMM) and relapsed/refractory MM (RRMM). The RAND-modified Delphi method was used to generate consensus statements. Twenty consensus statements were generated. The panel endorsed continued use of auto-HCT consolidation for patients with NDMM as a standard-of-care option, whereas in the front line allo-HCT and CAR-T were not recommended outside the setting of clinical trial. For patients not undergoing auto-HCT upfront, the panel recommended its use in first relapse. Lenalidomide as a single agent was recommended for maintenance especially for standard risk patients. In the RRMM setting, the panel recommended the use of CAR-T in patients with 4 or more prior lines of therapy. The panel encouraged allo-HCT in RRMM setting only in the context of clinical trial. The panel found RAND-modified Delphi methodology effective in providing a formal framework for developing consensus recommendations for the timing and sequence of cellular therapies for MM.
Revista:
REVISTA ESPAÑOLA DE MEDICINA NUCLEAR E IMAGEN MOLECULAR
ISSN:
2253-8089
Año:
2022
Vol.:
41
N°:
Supl. 1
Págs.:
S48 - S50
Revista:
SCIENCE ADVANCES
ISSN:
2375-2548
Año:
2022
Vol.:
8
N°:
39
Págs.:
eabo0514
Identification of new markers associated with long-term efficacy in patients treated with CAR T cells is a current medical need, particularly in diseases such as multiple myeloma. In this study, we address the impact of CAR density on the functionality of BCMA CAR T cells. Functional and transcriptional studies demonstrate that CAR T cells with high expression of the CAR construct show an increased tonic signaling with up-regulation of exhaustion markers and increased in vitro cytotoxicity but a decrease in in vivo BM infiltration. Characterization of gene regulatory networks using scRNA-seq identified regulons associated to activation and exhaustion up-regulated in CARHigh T cells, providing mechanistic insights behind differential functionality of these cells. Last, we demonstrate that patients treated with CAR T cell products enriched in CARHigh T cells show a significantly worse clinical response in several hematological malignancies. In summary, our work demonstrates that CAR density plays an important role in CAR T activity with notable impact on clinical response.
Revista:
JOURNAL OF CLINICAL ONCOLOGY
ISSN:
0732-183X
Año:
2022
Vol.:
40
N°:
27
Págs.:
3151 - 3161
PURPOSE Patients with multiple myeloma (MM) may show patchy bone marrow (BM) infiltration and extramedullary disease. Notwithstanding, quantification of plasma cells (PCs) continues to be performed in BM since the clinical translation of circulating tumor cells (CTCs) remains undefined. PATIENTS AND METHODS CTCs were measured in peripheral blood (PB) of 374 patients with newly diagnosed MM enrolled in the GEM2012MENOS65 and GEM2014MAIN trials. Treatment included bortezomib, lenalidomide, and dexamethasone induction followed by autologous transplant, consolidation, and maintenance. Next-generation flow cytometry was used to evaluate CTCs in PB at diagnosis and measurable residual disease (MRD) in BM throughout treatment. RESULTS CTCs were detected in 92% (344 of 374) of patients with newly diagnosed MM. The correlation between the percentages of CTCs and BM PCs was modest. Increasing logarithmic percentages of CTCs were associated with inferior progression-free survival (PFS). A cutoff of 0.01% CTCs showed an independent prognostic value (hazard ratio: 2.02; 95% CI, 1.3 to 3.1; P = .001) in multivariable PFS analysis including the International Staging System, lactate dehydrogenase levels, and cytogenetics. The combination of the four prognostic factors significantly improved risk stratification. Outcomes according to the percentage of CTCs and depth of response to treatment showed that patients with undetectable CTCs had exceptional PFS regardless of complete remission and MRD status. In all other cases with detectable CTCs, only achieving MRD negativity (and not complete remission) demonstrated a statistically significant increase in PFS. CONCLUSION Evaluation of CTCs in PB outperformed quantification of BM PCs. The detection of >= 0.01% CTCs could be a new risk factor in novel staging systems for patients with transplant-eligible MM.
Revista:
THE LANCET. HAEMATOLOGY
ISSN:
2352-3026
Año:
2022
Vol.:
9
N°:
11
Págs.:
E799 - E801
Revista:
AMERICAN JOURNAL OF HEMATOLOGY
ISSN:
0361-8609
Año:
2022
Vol.:
97
N°:
3
Págs.:
E113 - E117
Autores:
Mateos, M. V. (Autor de correspondencia); Weisel, K.; De Stefano, V.; et al.
Revista:
LEUKEMIA
ISSN:
0887-6924
Año:
2022
Vol.:
36
N°:
5
Págs.:
1371 - 1376
Despite treatment advances, patients with multiple myeloma (MM) often progress through standard drug classes including proteasome inhibitors (PIs), immunomodulatory drugs (IMiDs), and anti-CD38 monoclonal antibodies (mAbs). LocoMMotion (ClinicalTrials.gov identifier: NCT04035226) is the first prospective study of real-life standard of care (SOC) in triple-class exposed (received at least a PI, IMiD, and anti-CD38 mAb) patients with relapsed/refractory MM (RRMM). Patients (N = 248; ECOG performance status of 0-1, >= 3 prior lines of therapy or double refractory to a PI and IMiD) were treated with median 4.0 (range, 1-20) cycles of SOC therapy. Overall response rate was 29.8% (95% CI: 24.2-36.0). Median progression-free survival (PFS) and median overall survival (OS) were 4.6 (95% CI: 3.9-5.6) and 12.4 months (95% CI: 10.3-NE). Treatment-emergent adverse events (TEAEs) were reported in 83.5% of patients (52.8% grade 3/4). Altogether, 107 deaths occurred, due to progressive disease (n = 74), TEAEs (n = 19), and other reasons (n = 14). The 92 varied regimens utilized demonstrate a lack of clear SOC for heavily pretreated, triple-class exposed patients with RRMM in real-world practice and result in poor outcomes. This supports a need for new treatments with novel mechanisms of action.
Autores:
Nadeem, O.; Mateos, M. V.; Efebera, Y. A.; et al.
Revista:
DRUGS OF TODAY
ISSN:
1699-3993
Año:
2022
Vol.:
58
N°:
8
Págs.:
407 - 423
Despite therapeutic advances and improved patient outcomes in recent years, multiple myeloma (MM) remains a mostly incurable hematologic malignancy. Patients with relapsed/refractory MM (RRMM), especially those with triple-class-refractory disease or poor-prognostic features, have substantially unmet needs for new therapies with novel mechanisms of action. Melphalan flufenamide (melflufen) is the first alkylating peptide-drug conjugate that targets aminopeptidases to show efficacy and manageable safety, in combination with dexamethasone, in patients with RRMM who had received >= 4 prior lines of therapy, including >= 1 immunomodulatory drug, >= 1 proteasome inhibitor and >= 1 anti-CD38 monoclonal antibody, and received accelerated approval by the U.S. Food and Drug Administration (FDA) in early 2021 for use in this patient population. Initial analyses of the phase III OCEAN study data led to melflufen being voluntarily withdrawn from the U.S. market in late 2021, but subsequent analyses have prompted the manufacturer to rescind its voluntary withdrawal to allow further discussions with the U.S. FDA and the regulatory review with the European Medicines Agency (EMA) is also ongoing. Here, we provide a review of the novel mechanism of action and pharmacokinetics of melflufen, as well as key efficacy and safety from clinical studies that supported its initial approval, and discuss the nuances of the OCEAN study data. Melflufen demonstrates the potential of novel peptide-drug conjugates to positively impact the treatment landscape in RRMM.
Revista:
HEMATOLOGICAL ONCOLOGY
ISSN:
0278-0232
Año:
2022
Vol.:
40
N°:
5
Págs.:
987 - 998
The treatment scenario for newly-diagnosed transplant-ineligible multiple myeloma patients (NEMM) is quickly evolving. Currently, combinations of proteasome inhibitors and/or immunomodulatory drugs +/- the monoclonal antibody Daratumumab are used for first-line treatment, even if head-to-head comparisons are lacking. To compare efficacy and safety of these regimens, we performed a network meta-analysis of 27 phase 2/3 randomized trials including a total of 12,935 patients and 23 different schedules. Four efficacy/outcome and one safety indicators were extracted and integrated to obtain (for each treatment) the surface under the cumulative ranking-curve (SUCRA), a metric used to build a ranking chart. With a mean SUCRA of 83.8 and 80.08 respectively, VMP + Daratumumab (DrVMP) and Rd + Daratumumab (DrRd) reached the top of the chart. However, SUCRA is designed to work for single outcomes. To overcome this limitation, we undertook a dimensionality reduction approach through a principal component analysis, that unbiasedly grouped the 23 regimens into three different subgroups. On the bases of our results, we demonstrated that first line treatment for NEMM should be based on DrRd (most active, but continuous treatment), DrVMP (quite fixed-time treatment), or, alternatively, VRD and that, surprisingly, melphalan as well as Rd doublets still deserve a role in this setting.
Autores:
Ocio, E. M. (Autor de correspondencia); Perrot, A.; Bories, P.; et al.
Revista:
CLINICAL LYMPHOMA MYELOMA AND LEUKEMIA
ISSN:
2152-2650
Año:
2022
Vol.:
22
N°:
6
Págs.:
425
Autores:
Ghobrial, I. M. (Autor de correspondencia); Rodriguez, Paula; Koh, Y.; et al.
Revista:
CLINICAL LYMPHOMA MYELOMA AND LEUKEMIA
ISSN:
2152-2650
Año:
2022
Vol.:
22
N°:
7
Págs.:
545
Autores:
Larocca, A.; Leleu, X.; Touzeau, C.; et al.
Revista:
BRITISH JOURNAL OF HAEMATOLOGY
ISSN:
0007-1048
Año:
2022
Vol.:
196
N°:
3
Págs.:
639 - 648
Relapsed/refractory multiple myeloma (RRMM) is known to have a high burden of disease and complications associated with refractoriness to prior lines of therapy. Severe pain and fatigue symptoms and impairments in physical and emotional functioning have been strongly linked to reduced health-related quality of life (HRQoL) in patients with RRMM. Assessment of patient reported-outcome measures from the pivotal, Phase II HORIZON study (OP-106; NCT02963493) in patients with RRMM (n = 64) demonstrated that melphalan flufenamide (melflufen) plus dexamethasone treatment preserved HRQoL. Patients had clinically meaningful improvements, even after eight treatment cycles, in relevant scales such as global health status/QoL, physical functioning, emotional functioning, pain, and fatigue. Patients with triple-class-refractory disease (n = 50) displayed similar improvements. Patient-reported outcome deterioration was delayed for a substantial amount of time in patients who experienced a response to melflufen plus dexamethasone treatment relative to patients who did not experience a response. These findings support the notion that treatment with melflufen plus dexamethasone may sustain or improve HRQoL over time in patients with RRMM, including in patients with triple-class-refractory disease for whom outcomes are generally worse. The clinical benefits observed in patients from the HORIZON trial are encouraging and supportive of translation into real-world practice.
Autores:
Richardson, P. G. (Autor de correspondencia); Schjesvold, F.; Weisel, K.; et al.
Revista:
EUROPEAN JOURNAL OF HAEMATOLOGY
ISSN:
0902-4441
Año:
2022
Vol.:
108
N°:
1
Págs.:
73 - 83
Objective We evaluated the efficacy and safety of pomalidomide, bortezomib, and dexamethasone (PVd) vs bortezomib and dexamethasone (Vd) by age, renal function, and high-risk cytogenetic abnormalities in lenalidomide-pretreated patients with multiple myeloma at first relapse. Methods OPTIMISMM was a phase 3, multicenter, open-label, randomized study (NCT01734928; N = 559). The primary endpoint was progression-free survival (PFS). Results Overall, 226 patients had received one prior line of therapy. PVd significantly prolonged PFS vs Vd in patients aged <= 65 years (median, 22.0 vs 13.1 months; P = .0258) and >65 years (median, 17.6 vs 9.9 months; P = .0369). Median PFS in patients with renal impairment (RI; creatinine clearance <60 mL/min) was 15.1 months with PVd vs 9.5 months with Vd (hazard ratio [HR], 0.67 [95% CI, 0.34-1.34]). In patients without RI, median PFS was 22.0 vs 13.1 months (HR, 0.45 [95% CI, 0.27-0.76]). In patients with high-risk cytogenetics, median PFS was 14.7 vs 9.9 months (HR, 0.39 [95% CI, 0.13-1.17]). PVd significantly improved overall response rate vs Vd in all subgroups. The safety profile of PVd was consistent with previous reports. Conclusions These findings confirmed the benefits of PVd at first relapse, including in patients with poor prognostic factors.
Autores:
Weisel, K. (Autor de correspondencia); Ottosson Wadlund, A.; Gungor, G.; et al.
Revista:
EUROPEAN JOURNAL OF HAEMATOLOGY
ISSN:
0902-4441
Año:
2022
Vol.:
109
N°:
4
Págs.:
388 - 397
Objectives This non-interventional observational study described the current standard-of-care for transplant-eligible newly diagnosed multiple myeloma (TE-NDMM) patients in France, Germany, Spain, and Italy, and recorded the evolution in regimen adoption in distinct elements of frontline treatment during 2017-2020/2021. Methods Clinical information on ongoing (I) or previous (II) TE-NDMM patients was extracted from the Cancerology database. Proportions of patients receiving regimens in each element and the evolution in regimen adoption were determined for the entire population and each country. Results Most common induction regimens among I patients were VRd in France (75.3%) and Spain (44.1%), VTd in Italy (65.2%), and regimens other than VRd/VTd/VCd in Germany. Maintenance was ongoing/planned for 78.3%, 62.3%, 65.2%, and 61.4% patients in France, Germany, Spain, and Italy, respectively. Among II patients, VRd induction increased from 27.0% in 2017 to 65.7% in 2019 in France, remained relatively low in Spain and Germany, and not present in Italy. In Italy and Spain, VTd induction declined from 72.4% and 58.3% in 2017 to 52.8% and 17.3% in 2019, respectively. VCd induction in Germany declined from 85.2% in 2017 to 64.1% in 2019. Conclusion The use of bortezomib triplets in induction varied markedly over time and between selected countries.
Autores:
Nooka, A. K. ; Weisel, K.; van de Donk, N. W. C. J. ; et al.
Revista:
FUTURE ONCOLOGY
ISSN:
1479-6694
Año:
2021
Vol.:
17
N°:
16
Págs.:
1987 - 2003
Belantamab mafodotin (belamaf) is a BCMA-targeted antibody-drug conjugate recently approved as monotherapy for adults with relapsed/refractory multiple myeloma who have received ¿4 prior therapies. Belamaf binds to BCMA and eliminates myeloma cells by multimodal mechanisms of action. The cytotoxic and potential immunomodulatory properties of belamaf have led to novel combination studies with other anticancer therapies. Here, we describe the rationale and design of DREAMM-5, an ongoing Phase I/II platform study evaluating the safety and efficacy of belamaf combined with novel agents, including GSK3174998 (OX40 agonist), feladilimab (an ICOS; GSK3359609), nirogacestat (a gamma-secretase inhibitor; PF-03084014) and dostarlimab (a PD-1 blocker) versus belamaf monotherapy for patients with relapsed/refractory multiple myeloma. Clinical trial registration: NCT04126200 (ClinicalTrials.gov).
Autores:
Ocio, E. M. (Autor de correspondencia); Motllo, C.; Rodriguez, Paula; et al.
Revista:
BRITISH JOURNAL OF HAEMATOLOGY
ISSN:
0007-1048
Año:
2021
Vol.:
192
Págs.:
522 - 530
This phase I/II trial evaluated the combination of the kinesin spindle protein inhibitor filanesib with pomalidomide and dexamethasone in relapsed or refractory multiple myeloma (RRMM) patients. Forty-seven RRMM patients with a median of three prior lines (2-8) and 94% refractory to lenalidomide were included: 14 in phase I and 33 in phase II. The recommended dose was 1 center dot 25 mg/m(2) of filanesib on days 1, 2, 15, 16, with pomalidomide 4 mg on days 1-21 and dexamethasone 40 mg weekly. The defined threshold for success was achieved, with 18 out of 31 patients obtaining at least minor response (MR) in the phase II. In the global population, 51% of patients achieved at least partial response (PR) and 60% >= MR, resulting in a median progression-free survival (mPFS) of seven months and overall survival (OS) of 19 months. The main toxicity was haematological. Importantly, patients with low serum levels of alpha 1-acid glycoprotein (AAG) at baseline (<800 mg/l) had a superior response (overall response rate of 62% vs. 17%; P = 0 center dot 04), which also translated into a longer mPFS (9 vs. 2 months; P = 0 center dot 014). In summary, filanesib with pomalidomide and dexamethasone is active in RRMM although with significant haematological toxicity. Most importantly, high levels of AAG can identify patients unlikely to respond to this strategy.
Revista:
BLOOD CANCER JOURNAL
ISSN:
2044-5385
Año:
2021
Vol.:
11
N°:
12
Págs.:
202
There is evidence of reduced SARS-CoV-2 vaccine effectiveness in patients with hematological malignancies. We hypothesized that tumor and treatment-related immunosuppression can be depicted in peripheral blood, and that immune profiling prior to vaccination can help predict immunogenicity. We performed a comprehensive immunological characterization of 83 hematological patients before vaccination and measured IgM, IgG, and IgA antibody response to four viral antigens at day +7 after second-dose COVID-19 vaccination using multidimensional and computational flow cytometry. Health care practitioners of similar age were the control group (n = 102). Forty-four out of 59 immune cell types were significantly altered in patients; those with monoclonal gammopathies showed greater immunosuppression than patients with B-cell disorders and Hodgkin lymphoma. Immune dysregulation emerged before treatment, peaked while on-therapy, and did not return to normalcy after stopping treatment. We identified an immunotype that was significantly associated with poor antibody response and uncovered that the frequency of neutrophils, classical monocytes, CD4, and CD8 effector memory CD127low T cells, as well as naive CD21+ and IgM+D+ memory B cells, were independently associated with immunogenicity. Thus, we provide novel immune biomarkers to predict COVID-19 vaccine effectiveness in hematological patients, which are complementary to treatment-related factors and may help tailoring possible vaccine boosters.
Autores:
Jagannath, S. (Autor de correspondencia); Lin, Y.; Goldschmidt, H.; et al.
Revista:
BLOOD CANCER JOURNAL
ISSN:
2044-5385
Año:
2021
Vol.:
11
N°:
6
Págs.:
116
Patients with relapsed and refractory multiple myeloma (RRMM) who are triple-class exposed (to an immunomodulatory agent, proteasome inhibitor, and anti-CD38 antibody) have limited treatment options and there is no standard of care. Idecabtagene vicleucel (ide-cel, bb2121), a BCMA-directed CAR T-cell therapy, demonstrated efficacy in triple-class exposed RRMM patients in the KarMMa trial (NCT03361748). In this retrospective study (KarMMa-RW), patient-level data from triple-class exposed RRMM patients were merged into a single data model and compared with KarMMa using trimmed stabilized inverse probability of treatment weighting. Endpoints included overall response rate (ORR; primary), rate of very good partial response or better (>= VGPR), progression-free survival (PFS), and overall survival (OS). Of 1949 real-world triple-class exposed RRMM patients, 190 received subsequent (index) line of therapy and met KarMMa eligibility criteria (Eligible RRMM cohort). With a median follow-up of 13.3 months in KarMMa and 10.2 months in Eligible RRMM, ORR, and >= VGPR were significantly improved in KarMMa versus Eligible RRMM (ORR, 76.4% vs 32.2%; >= VGPR, 57.9% vs 13.7%; both P < 0.0001) as were PFS (11.6 vs 3.5 months; P = 0.0004) and OS (20.2 vs 14.7 months; P = 0.0006). This study demonstrated that ide-cel significantly improved responses and survival compared with currently available therapies in triple-class exposed RRMM.
Revista:
LEUKEMIA AND LYMPHOMA
ISSN:
1042-8194
Año:
2021
Vol.:
62
N°:
10
Págs.:
2482 - 2491
Idecabtagene vicleucel (ide-cel, bb2121), a chimeric antigen receptor (CAR) T cell therapy, has been investigated in patients with relapsed and refractory multiple myeloma (RRMM) who have received an immunomodulatory drug, proteasome inhibitor, and anti-CD38 antibody in the single-arm phase 2 KarMMa clinical trial. Two therapies with distinct mechanisms of action - selinexor plus dexamethasone (Sd) and belantamab mafodotin (BM) - are currently approved in the United States for heavily pretreated patients, including those who are triple-class refractory. To compare ide-cel versus Sd and ide-cel versus BM, matching-adjusted indirect comparisons were performed. Ide-cel extended progression-free survival (PFS) and overall survival (OS) versus both Sd and BM (hazard ratio (HR); 95% confidence interval (CI)). PFS: ide-cel versus Sd, 0.46; 0.28-0.75; ide-cel versus BM, 0.45; 0.27-0.77. OS: ide-cel versus Sd, 0.23; 0.13-0.42; ide-cel versus BM, 0.35; 0.14-0.87. These results suggest ide-cel offers clinically meaningful improvements over currently approved regimens for patients with heavily pretreated RRMM.
Autores:
Richardson, P. G. (Autor de correspondencia); Oriol, A.; Larocca, A.; et al.
Revista:
JOURNAL OF CLINICAL ONCOLOGY
ISSN:
0732-183X
Año:
2021
Vol.:
39
N°:
7
Págs.:
757 - 767
Purpose: Melphalan flufenamide (melflufen) is a first-in-class peptide-drug conjugate that targets aminopeptidases and rapidly and selectively releases alkylating agents into tumor cells. The phase II HORIZON trial evaluated the efficacy of melflufen plus dexamethasone in relapsed and refractory multiple myeloma (RRMM), a population with an important unmet medical need.
Patients and methods: Patients with RRMM refractory to pomalidomide and/or an anti-CD38 monoclonal antibody received melflufen 40 mg intravenously on day 1 of each 28-day cycle plus once weekly oral dexamethasone at a dose of 40 mg (20 mg in patients older than 75 years). The primary end point was overall response rate (partial response or better) assessed by the investigator and confirmed by independent review. Secondary end points included duration of response, progression-free survival, overall survival, and safety. The primary analysis is complete with long-term follow-up ongoing.
Results: Of 157 patients (median age 65 years; median five prior lines of therapy) enrolled and treated, 119 patients (76%) had triple-class-refractory disease, 55 (35%) had extramedullary disease, and 92 (59%) were refractory to previous alkylator therapy. The overall response rate was 29% in the all-treated population, with 26% in the triple-class-refractory population. In the all-treated population, median duration of response was 5.5 months, median progression-free survival was 4.2 months, and median overall survival was 11.6 months at a median follow-up of 14 months. Grade ¿ 3 treatment-emergent adverse events occurred in 96% of patients, most commonly neutropenia (79%), thrombocytopenia (76%), and anemia (43%). Pneumonia (10%) was the most common grade 3/4 nonhematologic event. Thrombocytopenia and bleeding (both grade 3/4 but fully reversible) occurred concomitantly in four patients. GI events, reported in 97 patients (62%), were predominantly grade 1/2 (93%); none were grade 4.
Conclusion: Melflufen plus dexamethasone showed clinically meaningful efficacy and a manageable safety profile in patients with heavily pretreated RRMM, including those with triple-class-refractory and extramedullary disease.
Trial registration: ClinicalTrials.gov NCT02963493.
Revista:
CLINICAL LYMPHOMA MYELOMA AND LEUKEMIA
ISSN:
2152-2650
Año:
2021
Vol.:
21
N°:
6
Págs.:
413 - 420
Treatment of relapsed/refractory multiple myeloma (RRMM) is highly challenging. We analyzed the efficacy and safety of pomalidomide, cyclophosphamide, and dexamethasone (PomCiDex) in a real-world RRMM population. Median progression-free and overall survival were 7.6 and 12.6 months, respectively, which compares favorably with other triplets in the same setting. PomCiDex remains a manageable, cost-effective, and all-oral triplet combination for RRMM. Introduction: Treatment of relapsed/refractory multiple myeloma (RRMM) is highly challenging, especially for patients with disease refractory to initial therapy, and in particular for disease developing refractoriness to lenalidomide. Indeed, with currently approved treatments, median progression-free survival (PFS) in the lenalidomide-refractory setting is less than 10 months, reflecting the difficulty in treating this patient population. Pomalidomide is a second-generation immunomodulatory drug that has shown activity in lenalidomide-refractory disease in the setting of different combinations. Patients and Methods: A real-world study was conducted by the Spanish Myeloma group in a cohort of patients with RRMM treated with pomalidomide, cyclophosphamide, and dexamethasone (PomCiDex). One hundred patients were treated with a median of 3 prior lines of therapy. Results: Overall response rate was 39%, with a clinical benefit rate of 93%. Median PFS was 7.6 months; median overall survival (OS) was 12.6 months. Median PFS and OS survival were consistent across the different subgroups analyzed. Prolonged PFS and OS were found in patients with responsive disease. Conclusion: Our results compared favorably with those obtained with different pomalidomide-based combinations in a similar patient population. PomCiDex remains a manageable, cost-effective, and all-oral triplet combination for RRMM patients. (C) 2021 Published by Elsevier Inc.
Autores:
Puig, N. (Autor de correspondencia); Flores-Montero, J.; Burgos, Leire; et al.
Revista:
CANCERS
ISSN:
2072-6694
Año:
2021
Vol.:
13
N°:
19
Págs.:
4924
Although the majority of patients with myeloma who achieve undetectable minimal residual disease show prolonged survival, some of them relapse shortly afterwards. False-negative results due to hemodiluted bone marrow samples could explain this inconsistency, but there is no guidance on how to evaluate them. We analyzed three cell populations normally absent in peripheral blood in 1404 aspirates obtained in numerous disease settings and in 85 healthy adults. Pairwise comparisons according to age and treatment showed significant variability, thus suggesting that hemodilution should be preferably evaluated with references obtained after receiving identical regimens. Leveraging the minimal residual disease results from 118 patients, we showed that a comparison with age-matched healthy adults could also inform on potential hemodilution. Our study supports the routine assessment of bone marrow cellularity to evaluate hemodilution, using as reference values either treatment-specific or from healthy adults if the former are unavailable.
Autores:
Chari, A. (Autor de correspondencia); Rodriguez, Paula; McCarthy, H. ; et al.
Revista:
BRITISH JOURNAL OF HAEMATOLOGY
ISSN:
0007-1048
Año:
2021
Vol.:
192
N°:
5
Págs.:
869 - 878
Daratumumab is a CD38-targeting monoclonal antibody approved for intravenous (IV) infusion for multiple myeloma (MM). We describe the Phase II PLEIADES study of a subcutaneous formulation of daratumumab (DARA SC) in combination with standard-of-care regimens: DARA SC plus bortezomib/lenalidomide/dexamethasone (D-VRd) for transplant-eligible newly diagnosed MM (NDMM); DARA SC plus bortezomib/melphalan/prednisone (D-VMP) for transplant-ineligible NDMM; and DARA SC plus lenalidomide/dexamethasone (D-Rd) for relapsed/refractory MM. In total, 199 patients were treated (D-VRd,n = 67; D-VMP,n = 67; D-Rd,n = 65). The primary endpoints were met for all cohorts: the >= very good partial response (VGPR) rate after four 21-day induction cycles for D-VRd was 71 center dot 6% [90% confidence interval (CI) 61 center dot 2-80 center dot 6%], and the overall response rates (ORRs) for D-VMP and D-Rd were 88 center dot 1% (90% CI 79 center dot 5-93 center dot 9%) and 90 center dot 8% (90% CI 82 center dot 6-95 center dot 9%). With longer median follow-up for D-VMP and D-Rd (14 center dot 3 and 14 center dot 7 months respectively), responses deepened (ORR: 89 center dot 6%, 93 center dot 8%; >= VGPR: 77 center dot 6%, 78 center dot 5%), and minimal residual disease-negativity (10(-5)) rates were 16 center dot 4% and 15 center dot 4%. Infusion-related reactions across all cohorts were infrequent (<= 9 center dot 0%) and mild. The median DARA SC administration time was 5 min. DARA SC with standard-of-care regimens demonstrated comparable clinical activity to DARA IV-containing regimens, with low infusion-related reaction rates and reduced administration time.
Autores:
Dhanasiri, S. (Autor de correspondencia); Hollier-Hann, G.; Stothard, C.; et al.
Revista:
CLINICAL THERAPEUTICS
ISSN:
0149-2918
Año:
2021
Vol.:
43
N°:
11
Págs.:
1983 - +
Purpose: Patients with relapsed and refractory multiple myeloma (RRMM) have a poor prognosis and limited treatment options after exposure to an immunomodulatory drug, proteasome inhibitor (PI), and anti-CD38 antibody (triple-class exposure [TCE]). However, current understanding about the management of these patients and associated health care resource use (HCRU) is limited outside the United States. The objective of the International Treatment pattern and resource use Evaluation for Multiple myeloma In a Study of triple-class Exposed patients (ITEMISE) study was to use a physician-developed survey fielded to hematologists across Europe and Canada to assess the treatment, management, HCRU, and end of-life care for patients with RRMM after TCE. Methods: The ITEMISE study used a 3-phase Delphi-like approach that consisted of in-depth interviews with 7 hematology experts; the development of a cross-sectional survey fielded to hematologists across Belgium, Canada, France, Germany, Italy, the Netherlands, Spain, Sweden, Switzerland, and the United Kingdom from August to October 2020; and a final workshop of hematology experts to validate the pooled findings. Hematologists were asked to consider the management of patients in the first 3 treatment lines after TCE, including treatment options, treatment duration and outcomes, and frequency of outpatient visits and hospitalizations. Findings: The survey was completed by 202 hematologists (60% from academic hospitals, 38% from other public hospitals, and 2% from private hospitals). Hematologists estimated that 55% of patients would receive active treatment after TCE, the equivalent of fourth-line treatment onward since diagnosis of multiple myeloma. Immunomodulatory drug, anti-CD38 antibody plus immunomodulatory drug, and PI-based regimens (received by 22.5%, 17.8%, and 15.1% of patients, respectively) were reported for first treatment strategy after TCE. Pomalidomide, daratumumab, lenalidomide, bortezomib, and carfilzomib were the most frequently selected antimyeloma agents. Associated outcomes of median overall survival, progression-free survival, and objective response rate for first treatment after TCE were estimated as 12 months, 4 months, and 40%, respectively. HCRU included outpatient visits and unplanned hospitalizations that were commonly reported during treatment after TCE. Implications: Findings indicate an intent to actively treat patients after TCE with a range of combination regimens frequently consisting of immunomodulatory drugs, PIs, and anti-CD38 antibodies, highlighting the lack of standard of care and suggesting a large clinical unmet need. Estimated clinical outcomes are consistent with data from US studies and indicate the poor prognosis for patients after TCE. Substantial HCRU is associated with management of patients after TCE across Europe and Canada, signifying a high patient and societal impact and a need for better treatment options to reduce this burden. (Clin Ther. 2021;43:1983- 1996.) (c) 2021 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY-NC ND license ( http://creativecommons.org/licenses/bync-nd/4.0/ )
Revista:
PHYSICA MEDICA
ISSN:
1120-1797
Año:
2021
Vol.:
84
Págs.:
1 - 9
Purpose: To investigate within phantoms the minimum CT dose allowed for accurate attenuation correction of PET data and to quantify the effective dose reduction when a CT for this purpose is incorporated in the clinical setting.
Methods: The NEMA image quality phantom was scanned within a large parallelepiped container. Twenty-one different CT images were acquired to correct attenuation of PET raw data. Radiation dose and image quality were evaluated. Thirty-one patients with proven multiple myeloma who underwent a dual tracer PET/CT scan were retrospectively reviewed. 18F-fluorodeoxyglucose PET/CT included a diagnostic whole-body low dose CT (WBLDCT: 120 kV-80mAs) and 11C-Methionine PET/CT included a whole-body ultra-low dose CT (WBULDCT) for attenuation correction (100 kV-40mAs). Effective dose and image quality were analysed.
Results: Only the two lowest radiation dose conditions (80 kV-20mAs and 80 kV-10mAs) produced artifacts in CT images that degraded corrected PET images. For all the other conditions (CTDIvol ¿ 0.43 mGy), PET contrast recovery coefficients varied less than ± 1.2%. Patients received a median dose of 6.4 mSv from diagnostic CT and 2.1 mSv from the attenuation correction CT. Despite the worse image quality of this CT, 94.8% of bone lesions were identifiable.
Conclusion: Phantom experiments showed that an ultra-low dose CT can be implemented in PET/CT procedures without any noticeable degradation in the attenuation corrected PET scan. The replacement of the standard CT for this ultra-low dose CT in clinical PET/CT scans involves a significant radiation dose reduction.
Revista:
CANCERS
ISSN:
2072-6694
Año:
2020
Vol.:
12
N°:
4
Págs.:
1042
C-11-methionine (C-11-MET) is a new positron emission tomography (PET) tracer for the assessment of disease activity in multiple myeloma (MM) patients, with preliminary data suggesting higher sensitivity and specificity than F-18-fluorodeoxyglucose (F-18-FDG). However, the value of tumor burden biomarkers has yet to be investigated. Our goals were to corroborate the superiority of C-11-MET for MM staging and to compare its suitability for the assessment of metabolic tumor burden biomarkers in comparison to F-18-FDG. Twenty-two patients with newly diagnosed, treatment-naive symptomatic MM who had undergone C-11-MET and F-18-FDG PET/CT were evaluated. Standardized uptake values (SUV) were determined and compared with total metabolic tumor volume (TMTV) for both tracers: total lesion glycolysis (TLG) and total lesion C-11-MET uptake (TLMU). PET-derived values were compared to Revised International Staging System (R-ISS), cytogenetic, and serologic MM markers such as M component, beta 2 microglobulin (B2M), serum free light chains (FLC), albumin, and lactate dehydrogenase (LDH). In 11 patients (50%), C-11-MET detected more focal lesions (FL) than FDG (p < 0.01). SUVmax, SUVmean, SUVpeak, TMTV, and TLMU were also significantly higher in C-11-MET than in F-18-FDG (p < 0.05, respectively). C-11-MET PET biomarkers had a better correlation with tumor burden (bone marrow plasma cell infiltration, M component; p < 0.05 versus p = n.s. respectively). This pilot study suggests that C-11-MET PET/CT is a more sensitive marker for the assessment of myeloma tumor burden than F-18-FDG. Its implications for prognosis evaluation need further investigation.
Revista:
CANCERS
ISSN:
2072-6694
Año:
2020
Vol.:
12
N°:
4
Págs.:
1042
11C-methionine (11C-MET) is a new positron emission tomography (PET) tracer for the assessment of disease activity in multiple myeloma (MM) patients, with preliminary data suggesting higher sensitivity and specificity than 18F-fluorodeoxyglucose (18F-FDG). However, the value of tumor burden biomarkers has yet to be investigated. Our goals were to corroborate the superiority of 11C-MET for MM staging and to compare its suitability for the assessment of metabolic tumor burden biomarkers in comparison to 18F-FDG. Twenty-two patients with newly diagnosed, treatment-naïve symptomatic MM who had undergone 11C-MET and 18F-FDG PET/CT were evaluated. Standardized uptake values (SUV) were determined and compared with total metabolic tumor volume (TMTV) for both tracers: total lesion glycolysis (TLG) and total lesion 11C-MET uptake (TLMU). PET-derived values were compared to Revised International Staging System (R-ISS), cytogenetic, and serologic MM markers such as M component, beta 2 microglobulin (B2M), serum free light chains (FLC), albumin, and lactate dehydrogenase (LDH). In 11 patients (50%), 11C-MET detected more focal lesions (FL) than FDG (p < 0.01). SUVmax, SUVmean, SUVpeak, TMTV, and TLMU were also significantly higher in 11C-MET than in 18F-FDG (p < 0.05, respectively). 11C-MET PET biomarkers had a better correlation with tumor burden (bone marrow plasma cell infiltration, M component; p < 0.05 versus p = n.s. respectively). This pilot study suggests that 11C-MET PET/CT is a more sensitive marker for the assessment of myeloma tumor burden than 18F-FDG. Its implications for prognosis evaluation need further investigation.
Autores:
Facon, T.; Dimopoulos, M. A.; Meuleman, N.; et al.
Revista:
LEUKEMIA
ISSN:
0887-6924
Año:
2020
Vol.:
34
N°:
1
Págs.:
224 - 233
Patients with multiple myeloma are generally older and vary in fitness levels, which may influence the clinical benefit of treatment. Patients from the large, phase 3 FIRST trial in newly diagnosed multiple myeloma (NDMM) were retrospectively investigated to determine outcomes based on frailty using scores for age, Charlson Comorbidity Index (CCI), and Eastern Cooperative Oncology Group performance status (ECOG PS), instead of the EQ-5D quality-of-life questionnaire, as previously reported. ECOG PS (n = 1618) was investigated in frailty groups: frail (49%) and nonfrail (51%). Frail patients experienced worse progression-free and overall survival vs nonfrail patients. Prognostic assessment was improved when combining frailty and International Staging System stage (I/II vs III). Frail patients had a higher risk of developing grade 3/4 treatment-emergent adverse events. Treatment effects observed in the FIRST trial were confirmed per frailty group and per frailty and ISS group. The use of this ECOG PS-containing frailty scale as a predictive measure of clinical outcomes in patients with transplant-ineligible NDMM is supported by data from the FIRST trial. This score, based on age, CCI, and ECOG PS, can be easily replicated and may help design future myeloma studies in frail or nonfrail elderly patients.
Autores:
Lonial, S. (Autor de correspondencia); Lee, H. C.; Badros, A.; et al.
Revista:
LANCET ONCOLOGY
ISSN:
1470-2045
Año:
2020
Vol.:
21
N°:
2
Págs.:
207 - 221
Background Belantamab mafodotin (GSK2857916), an immunoconjugate targeting B-cell maturation antigen, showed single-agent activity in the phase 1 DREAMM-1 study in heavily pre-treated patients with relapsed or refractory multiple myeloma. We further investigated the safety and activity of belantamab mafodotin in the DREAMM-2 study. Methods DREAMM-2 is an open-label, two-arm, phase 2 study done at 58 multiple myeloma specialty centres in eight countries. Patients (aged >= 18 years) with relapsed or refractory multiple myeloma with disease progression after three or more lines of therapy and who were refractory to immunomodulatory drugs and proteasome inhibitors, and refractory or intolerant (or both) to an anti-CD38 monoclonal antibody with an Eastern Cooperative Oncology Group performance status of 0-2 were recruited, centrally randomly assigned (1:1) with permuted blocks (block size 4), and stratified by previous lines of therapy (<= 4 vs >4) and cytogenetic features to receive 2.5 mg/kg or 3.4 mg/kg belantamab mafodotin via intravenous infusion every 3 weeks on day 1 of each cycle until disease progression or unacceptable toxicity. The intention-to-treat population comprised all randomised patients, regardless of treatment administration. The safety population comprised all patients who received at least one dose of belantamab mafodotin. The primary outcome was the proportion of randomly assigned patients in the intention-to-treat population who achieved an overall response, as assessed by an independent review committee. This study is registered with ClinicalTrials.gov, NCT03525678, and is ongoing. Findings Between June 18, 2018, and Jan 2, 2019, 293 patients were screened and 196 were included in the intention-to-treat population (97 in the 2.5 mg/kg cohort and 99 in the 3.4 mg/kg cohort). As of June 21, 2019 (the primary analysis data cutoff date), 30 (31%; 97.5% CI 20.8-42.6) of 97 patients in the 2.5 mg/kg cohort and 34 (34%; 23.9-46.0) of 99 patients in the 3.4 mg/kg cohort achieved an overall response. The most common grade 3-4 adverse events in the safety population were keratopathy (in 26 [27%] of 95 patients in the 2.5 mg/kg cohort and 21 [21%] of 99 patients in the 3.4 mg/kg cohort), thrombocytopenia (19 [20%] and 33 [33%]), and anaemia (19 [20%] and 25 [25%]); 38 (40%) of 95 patients in the 2.5 mg/kg cohort and 47 (47%) of 99 in the 3.4 mg/kg cohort reported serious adverse events. Two deaths were potentially treatment related (one case of sepsis in the 2.5 mg/kg cohort and one case of haemophagocytic lymphohistiocytosis in the 3.4 mg/kg cohort). Interpretation Single-agent belantamab mafodotin shows anti-myeloma activity with a manageable safety profile in patients with relapsed or refractory multiple myeloma.
Revista:
LEUKEMIA
ISSN:
0887-6924
Año:
2020
Vol.:
34
N°:
11
Págs.:
3007 - 3018
Multiple myeloma (MM) patients undergo repetitive bone marrow (BM) aspirates for genetic characterization. Circulating tumor cells (CTCs) are detectable in peripheral blood (PB) of virtually all MM cases and are prognostic, but their applicability for noninvasive screening has been poorly investigated. Here, we used next-generation flow (NGF) cytometry to isolate matched CTCs and BM tumor cells from 53 patients and compared their genetic profile. In eight cases, tumor cells from extramedullary (EM) plasmacytomas were also sorted and whole-exome sequencing was performed in the three spatially distributed tumor samples. CTCs were detectable by NGF in the PB of all patients with MM. Based on the cancer cell fraction of clonal and subclonal mutations, we found that similar to 22% of CTCs egressed from a BM (or EM) site distant from the matched BM aspirate. Concordance between BM tumor cells and CTCs was high for chromosome arm-level copy number alterations (>= 95%) though not for translocations (39%). All high-risk genetic abnormalities except one t(4;14) were detected in CTCs whenever present in BM tumor cells. Noteworthy, >= 82% mutations present in BM and EM clones were detectable in CTCs. Altogether, these results support CTCs for noninvasive risk-stratification of MM patients based on their numbers and genetic profile.
Revista:
BLOOD
ISSN:
0006-4971
Año:
2020
Vol.:
136
N°:
2
Págs.:
199 - 209
Granulocytic myeloid-derived suppressor cells (G-MDSCs) promote tumor growth and immunosuppression in multiple myeloma (MM). However, their phenotype is not well established for accurate monitoring or clinical translation. We aimed to provide the phenotypic profile of G-MDSCs based on their prognostic significance in MM, immunosuppressive potential, and molecular program. The preestablished phenotype of G-MDSCs was evaluated in bone marrow samples from controls and MM patients using multidimensional flow cytometry; surprisingly, we found that CD11b+CD14-CD15+CD33+HLADR- cells overlapped with common eosinophils and neutrophils, which were not expanded in MM patients. Therefore, we relied on automated clustering to unbiasedly identify all granulocytic subsets in the tumor microenvironment: basophils, eosinophils, and immature, intermediate, and mature neutrophils. In a series of 267 newly diagnosed MM patients (GEM2012MENOS65 trial), only the frequency of mature neutrophils at diagnosis was significantly associated with patient outcome, and a high mature neutrophil/T-cell ratio resulted in inferior progression-free survival (P < .001). Upon fluorescence-activated cell sorting of each neutrophil subset, T-cell proliferation decreased in the presence of mature neutrophils (0.5-fold; P = .016), and the cytotoxic potential of T cells engaged by a BCMA×CD3-bispecific antibody increased notably with the depletion of mature neutrophils (fourfold; P = .0007). Most interestingly, RNA sequencing of the 3 subsets revealed that G-MDSC-related genes were specifically upregulated in mature neutrophils from MM patients vs controls because of differential chromatin accessibility. Taken together, our results establish a correlation between the clinical significance, immunosuppressive potential, and transcriptional network of well-defined neutrophil subsets, providing for the first time a set of optimal markers (CD11b/CD13/CD16) for accurate monitoring of G-MDSCs in MM.
Autores:
Oriol, A.; Larocca, A. ; Leleu, X.; et al.
Revista:
EXPERT OPINION ON INVESTIGATIONAL DRUGS
ISSN:
1354-3784
Año:
2020
Vol.:
29
N°:
10
Págs.:
1069 - 1078
Introduction: The overall survival of patients with multiple myeloma has improved with the advent of novel agents; however, multiple myeloma remains incurable. Combinations of standard-of-care agents such as immunomodulators, proteasome inhibitors, and anti-CD38 monoclonal antibodies are increasingly used in earlier lines of therapy. Patients with disease that is refractory to multiple novel agents represent a population with high unmet medical need and for whom therapies with new mechanisms of action could be beneficial. Melphalan flufenamide (melflufen) has demonstrated encouraging activity in patients with relapsed and refractory multiple myeloma. Areas covered: This review provides an overview of the mechanism of action of melflufen, a first-in-class peptide-drug conjugate that targets aminopeptidases and rapidly delivers alkylating agents into tumor cells. It reviews key Phase I and II clinical trial data for melflufen in combination with dexamethasone as well as in triplet combinations with daratumumab or bortezomib. The safety profile of melflufen, which is characterized primarily by clinically manageable hematologic adverse events, is described. Expert opinion: Melflufen has potential to fill a gap in the myeloma treatment landscape by providing a new mechanism of action with clinically meaningful efficacy and a favorable safety profile in patients refractory to multiple novel agents.
Autores:
Alegre, A.; de la Rubia, J. ; Balari, A. S.; et al.
Revista:
HEMASPHERE
ISSN:
2572-9241
Año:
2020
Vol.:
4
N°:
3
Págs.:
e380
Daratumumab is a human CD38-targeted monoclonal antibody approved as monotherapy for heavily pretreated relapsed and refractory multiple myeloma. We report findings for the Spanish cohort of an open-label treatment protocol that provided early access to daratumumab monotherapy and collected safety and patient-reported outcomes data for patients with relapsed or refractory multiple myeloma. At 15 centers across Spain, intravenous daratumumab (16 mg/kg) was administered to 73 patients who had ¿3 prior lines of therapy, including a proteasome inhibitor and an immunomodulatory drug, or who were double refractory to both. The median duration of daratumumab treatment was 3.3 (range: 0.03-13.17) months, with a median number of 12 (range: 1-25) infusions. Grade 3/4 treatment-emergent adverse events were reported in 74% of patients and included lymphopenia (28.8%), thrombocytopenia (27.4%), neutropenia (21.9%), leukopenia (19.2%), and anemia (15.1%). Common (>5%) serious treatment-emergent adverse events included respiratory tract infection (9.6%), general physical health deterioration (6.8%), and back pain (5.5%). Infusion-related reactions occurred in 45% of patients. The median change from baseline in all domains of the EQ-5D-5L and EORTC QLQ-C30 was mostly 0. A total of 18 (24.7%) patients achieved a partial response or better, with 10 (13.7%) patients achieving a very good partial response or better. Median progression-free survival was 3.98 months. The results of this early access treatment protocol are consistent with previously reported trials of daratumumab monotherapy and confirm its safety and antitumoral efficacy in Spanish patients with heavily treated relapsed or refractory multiple myeloma. European Clinical Trials Database number: 2015-002993-19.
Revista:
JCO GLOBAL ONCOLOGY
ISSN:
2687-8941
Año:
2020
Vol.:
6
Págs.:
904 - 905
Revista:
EUROPEAN JOURNAL OF RADIOLOGY
ISSN:
0720-048X
Año:
2020
Vol.:
133
Págs.:
109403
Objectives: To analyze the feasibility of DWI-MRI and ADC to evaluate treatment response in patients with multiple myeloma (MM). To correlate the variations of ADC and SUVmax in 18F-FDG PET-CT.
Methods: 27 patients with MM that had a whole-body MRI and 18F-FDG PET-CT performed at baseline and after treatment were retrospectively recruited between February 2018 and May 2020. Three target bone lesions were selected for each patient and their ADC, SUVmax and Deauville score were measured in every study. Correlation between ADC and SUVmax of the lesions was evaluated, as well as changes in mean ADC, SUVmax, and Deauville score between studies. Patients were classified as responder or non-responder according to the IMWG, MRI (MY-RADS) and PET-CT (IMPeTUs) response criteria. Agreement between the MRI and PET-CT criteria with the IMWG criteria was evaluated.
Results: The correlation between the ADC and SUVmax of all the target lesions was strong, negative and significant (r=-0.603; p < 0.001). After treatment, mean ADC in lesions from responders was significantly higher than in non-responders (1585.51 × 10-6 mm2/s vs 698.17 × 10-6 mm2/s; p < 0.001). SUVmax of the same lesions was significantly lower in responders than in non-responders (2.05 vs 5.33; p < 0.001). There was a very strong or strong agreement of the IMWG response criteria with both MRI (¿ = 0.852; p < 0.001) and PET (¿ = 0.767; p < 0.001) criteria.
Conclusion: DWI-MRI and ADC may be used to assess treatment response in MM patients, showing a good correlation with 18F-FDG PET-CT and the IMWG response criteria.
Revista:
EUROPEAN JOURNAL OF RADIOLOGY
ISSN:
0720-048X
Año:
2020
Vol.:
133
Págs.:
109403
Objectives: To analyze the feasibility of DWI-MRI and ADC to evaluate treatment response in patients with multiple myeloma (MM). To correlate the variations of ADC and SUVmax in F-18-FDG PET-CT. Methods: 27 patients with MM that had a whole-body MRI and F-18-FDG PET-CT performed at baseline and after treatment were retrospectively recruited between February 2018 and May 2020. Three target bone lesions were selected for each patient and their ADC, SUVmax and Deauville score were measured in every study. Correlation between ADC and SUVmax of the lesions was evaluated, as well as changes in mean ADC, SUVmax, and Deauville score between studies. Patients were classified as responder or non-responder according to the IMWG, MRI (MY-RADS) and PET-CT (IMPeTUs) response criteria. Agreement between the MRI and PET-CT criteria with the IMWG criteria was evaluated. Results: The correlation between the ADC and SUVmax of all the target lesions was strong, negative and significant (r=-0.603; p < 0.001). After treatment, mean ADC in lesions from responders was significantly higher than in non-responders (1585.51 x 10(-6) mm(2)/s vs 698.17 x 10(-6) mm(2)/s; p < 0.001). SUVmax of the same lesions was significantly lower in responders than in non-responders (2.05 vs 5.33; p < 0.001). There was a very strong or strong agreement of the IMWG response criteria with both MRI (kappa = 0.852; p < 0.001) and PET (kappa = 0.767; p < 0.001) criteria. Conclusion: DWI-MRI and ADC may be used to assess treatment response in MM patients, showing a good correlation with F-18-FDG PET-CT and the IMWG response criteria.
Autores:
Chari, A. (Autor de correspondencia); Martinez-Lopez, J.; Mateos, M. V.; et al.
Revista:
BLOOD
ISSN:
0006-4971
Año:
2019
Vol.:
134
N°:
5
Págs.:
421 - 431
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; lenalidomiderefractory patients were eligible. Carfilzomib- and daratumumab-naive patients (n 5 85) received carfilzomib weekly on days 1, 8, and 15 of each 28-day cycle (20 mg/m(2) initial dose, escalated to 70 mg/m(2) 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.
Revista:
LEUKEMIA
ISSN:
0887-6924
Año:
2019
Vol.:
33
N°:
4
Págs.:
1056 - 1056
Following the publication of this article, the author notes that the following information was missed from the acknowledgments section.
Autores:
Mateos, M. V. (Autor de correspondencia); Orlowski, R. Z.; Ocio, E. M.; et al.
Revista:
BRITISH JOURNAL OF HAEMATOLOGY
ISSN:
0007-1048
Año:
2019
Vol.:
186
N°:
5
Págs.:
e117 - e121
Autores:
Mateos, M. V. (Autor de correspondencia); Blacklock, H. ; Schjesvold, F. ; et al.
Revista:
THE LANCET. HAEMATOLOGY
ISSN:
2352-3026
Año:
2019
Vol.:
6
N°:
9
Págs.:
e459 - e469
ackground: Pomalidomide and dexamethasone is a standard of care for patients with multiple myeloma in whom bortezomib and lenalidomide treatment has failed. KEYNOTE-183 assessed efficacy and safety of pomalidomide and dexamethasone with or without pembrolizumab in patients with relapsed or refractory multiple myeloma. Here, we present the findings of an unplanned, ad-hoc interim analysis at the request of the US Food and Drug Administration (FDA).
Methods: KEYNOTE-183 was a randomised, open-label, phase 3 trial done at 97 medical centres across 11 countries (Australia, Canada, France, Germany, Israel, Italy, Japan, New Zealand, Norway, Spain, and USA). Patients aged at least 18 years with multiple myeloma, an Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1, previously treated with at least two lines of therapy (excluding pomalidomide) and refractory to the last line were randomly assigned 1:1 to the pembrolizumab plus pomalidomide and dexamethasone group or the pomalidomide and dexamethasone group via an interactive voice response or integrated web response system. Patients received oral pomalidomide 4 mg daily on days 1-21 and oral low-dose dexamethasone 40 mg on days 1, 8, 15, and 22 in 28-day cycles, with or without intravenous pembrolizumab 200 mg every 3 weeks. The dual primary endpoints were progression-free survival and overall survival. Efficacy was assessed in all randomly assigned patients and safety was assessed in patients who received at leas
Revista:
BLOOD CANCER JOURNAL
ISSN:
2044-5385
Año:
2019
Vol.:
9
N°:
4
Págs.:
36
Disease control at 5 years would be a desirable endpoint for elderly multiple myeloma (MM) patients, but biomarkers predicting this are not defined. Therefore, to gain further insights in this endpoint, a population of 498 newly diagnosed transplant-ineligible patients enrolled in two Spanish trials (GEM2005MAS65 and GEM2010MAS65), has been analyzed. Among the 435 patients included in this post-hoc study, 18.6% remained alive and progression free after 5 years of treatment initiation. In these patients, overall survival (OS) rate at 10 years was 60.8% as compared with 11.8% for those progressing within the first 5 years. Hemoglobin (Hb) >= 12 g/dl (OR 2.74, p = 0.001) and MGUS-like profile (OR 4.18, p = 0.005) were the two baseline variables associated with long-term disease-free survival. Upon including depth of response (and MRD), Hb >= 12 g/dl (OR 2.27) and MGUS-like signature (OR 7.48) retained their predictive value along with MRD negativity (OR 5.18). This study shows that despite the use of novel agents, the probability of disease control at 5 years is still restricted to a small fraction (18.6%) of elderly MM patients. Since this endpoint is associated with higher rates of OS, this study provides important information about diagnostic and post-treatment biomarkers helpful in predicting the likelihood of disease control at 5 years.
Revista:
CLINICAL CANCER RESEARCH
ISSN:
1078-0432
Año:
2019
Vol.:
25
N°:
10
Págs.:
3176 - 3187
Purpose: Knowledge about the mechanism of action (MoA) of monoclonal antibodies (mAb) is required to understand which patients with multiple myeloma (MM) benefit the most from a given mAb, alone or in combination therapy. Although there is considerable research about daratumumab, knowledge about other anti-CD38 mAbs remains scarce.
Experimental Design: We performed a comprehensive analysis of the MoA of isatuximab.
Results: Isatuximab induces internalization of CD38 but not its significant release from MMcell surface. In addition, we uncovered an association between levels of CD38 expression and different MoA: (i) Isatuximab was unable to induce direct apoptosis on MM cells with CD38 levels closer to those in patients with MM, (ii) isatuximab sensitized CD38(hi) MMcells to bortezomib plus dexamethasone in the presence of stroma, (iii) antibody-dependent cellular cytotoxicity (ADCC) was triggered by CD38(lo) and CD38(hi) tumor plasma cells (PC), (iv) antibody-dependent cellular phagocytosis (ADCP) was triggered only by CD38(hi) MM cells, whereas (v) complement-dependent cytotoxicity could be triggered in less than half of the patient samples (those with elevated levels of CD38). Furthermore, we showed that isatuximab depletes CD38(hi) B-lymphocyte precursors and natural killer (NK) lymphocytes ex vivo-the latter through activation followed by exhaustion and eventually phagocytosis.
Conclusions: This study provides a framework to understand response determinants in patients treated with isatuximab based on the number of MoA triggered by CD38 levels of expression, and for the design of effective combinations aimed at capitalizing disrupted tumor-stroma cell protection, augmenting NK lymphocyte-mediated ADCC, or facilitating ADCP in CD38(lo) MM patients.
Revista:
HAEMATOLOGICA
ISSN:
0390-6078
Año:
2018
Vol.:
103
N°:
7
Págs.:
E318 - E321
Revista:
LEUKEMIA
ISSN:
0887-6924
Año:
2018
Vol.:
32
N°:
11
Págs.:
2427 - 2434
Although survival of elderly myeloma patients has significantly improved there is still a subset of patients who, despite being fit and achieving optimal responses, will die within 2 years of diagnosis due to myeloma progression. The objective of this study was to define a scoring prognostic index to identify this group of patients. We have evaluated the outcome of 490 newly diagnosed elderly myeloma patients included in two Spanish trials (GEM2005-GEM2010). Sixty-eight patients (13.8%) died within 2 years of diagnosis (early deaths) due to myeloma progression. Our study shows that the use of simple scoring model based on 4 widely available markers (elevated LDH, ISS 3, high risk CA or >75 years) can contribute to identify up-front these patients. Moreover, unsustained response (<6 months duration) emerged as one important predictor of early myeloma-related mortality associated with a significant increase in the risk of death related to myeloma progression. The identification of these patients at high risk of early death is relevant for innovative trials aiming to maintain the depth of first response, since many of them will not receive subsequent lines of therapy.
Revista:
BLOOD CANCER JOURNAL
ISSN:
2044-5385
Año:
2018
Vol.:
8
Págs.:
117
Here, we investigated for the first time the frequency and number of circulating tumor plasma cells (CTPC) in peripheral blood (PB) of newly diagnosed patients with localized and systemic plasma cell neoplasms (PCN) using next-generation flow cytometry (NGF) and correlated our findings with the distinct diagnostic and prognostic categories of the disease. Overall, 508 samples from 264 newly diagnosed PCN patients, were studied. CTPC were detected in PB of all active multiple myeloma (MM; 100%), and smoldering MM (SMM) patients (100%), and in more than half (59%) monoclonal gammopathy of undetermined significance (MGUS) cases (p < 0.0001); in contrast, CTPC were present in a small fraction of solitary plasmacytoma patients (18%). Higher numbers of CTPC in PB were associated with higher levels of BM infiltration and more adverse prognostic features, together with shorter time to progression from MGUS to MM (p < 0.0001) and a shorter survival in MM patients with active disease requiring treatment (p <= 0.03). In summary, the presence of CTPC in PB as assessed by NGF at diagnosis, emerges as a hallmark of disseminated PCN, higher numbers of PB CTPC being strongly associated with a malignant disease behavior and a poorer outcome of both MGUS and MM.
Revista:
THERANOSTICS
ISSN:
1838-7640
Año:
2017
Vol.:
7
N°:
11
Págs.:
2956 - 2964
C-11-methionine (MET) has recently emerged as an accurate marker of tumor burden and disease activity in patients with multiple myeloma (MM). This dual-center study aimed at further corroboration of the superiority of MET as positron emission tomography (PET) tracer for staging and re-staging MM, as compared to F-18-2'-deoxy-2'-fluoro-D-glucose (FDG). 78 patients with a history of solitary plasmacytoma (n=4), smoldering MM (SMM, n=5), and symptomatic MM (n=69) underwent both MET-and FDG-PET/computed tomography (CT) at the University Centers of Wurzburg, Germany and Navarra, Spain. Scans were compared on a patient and on a lesion basis. Inter-reader agreement was also evaluated. In 2 patients, tumor biopsies for verification of discordant imaging results were available. MET-PET detected focal lesions (FL) in 59/78 subjects (75.6%), whereas FDG-PET/CT showed lesions in only 47 patients (60.3%; p<0.01), accordingly disease activity would have been missed in 12 patients. Directed biopsies of discordant results confirmed MET-PET/CT results in both cases. MET depicted more FL in 44 patients (56.4%; p<0.01), whereas in two patients (2/78), FDG proved superior. In the remainder (41.0%, 32/78), both tracers yielded comparable results. Inter-reader agreement for MET was higher than for FDG (kappa=0.82 vs kappa=0.72). This study demonstrates higher sensitivity of MET in comparison to standard FDG to detect intra-and extramedullary MM including histologic evidence of FDG-negative, viable disease exclusively detectable by MET-PET/CT. MET holds the potential to replace FDG as functional imaging standard for staging and re-staging of MM.
Autores:
Kumar, S. K. (Autor de correspondencia); Dimopoulos, M. A.; Kastritis, E.; et al.
Revista:
LEUKEMIA
ISSN:
0887-6924
Año:
2017
Vol.:
31
N°:
11
Págs.:
2443 - 2448
Introduction of new myeloma therapies offers new options for patients refractory to immunomodulatory drugs (IMiDs) and proteasome inhibitors (PIs). In this multicenter study, patients with relapsed multiple myeloma, who have received at least three prior lines of therapy, are refractory to both an IMiD (lenalidomide or pomalidomide) and a PI (bortezomib or carfilzomib), and have been exposed to an alkylating agent were identified. The time patients met the above criteria was defined as time zero (T-0). Five hundred and forty-three patients diagnosed between 2006 and 2014 were enrolled in this study. Median age at T-0 was 62 years (range 31-87); 61% were males. The median duration between diagnosis and T-0 was 3.1 years. The median number of lines of therapy before T-0 was 4 (range 3-13). The median overall survival (OS) from T-0 for the entire cohort was 13 (95% confidence interval (CI) 11, 15) months. At least one regimen recorded after T-0 in 462 (85%) patients, with a median (95% CI) progression-free survival and OS from T-0 of 5 (4, 6), and 15.2 (13, 17) months, respectively. The study provides the expected outcome of relapsed multiple myeloma that is refractory to a PI and an IMiD, a benchmark for comparison of new therapies being evaluated.
Autores:
Garcia-Sanz, R.; Jimenez, C.; Puig, N.; et al.
Revista:
BEST PRACTICE & RESEARCH CLINICAL HAEMATOLOGY
ISSN:
1532-1924
Año:
2016
Vol.:
29
N°:
2
Págs.:
136 - 147
Waldenstrom's macroglobulinaemia (WM) is an MYD88(L265P)-mutated lymphoplasmacytic lymphoma that invades bone marrow and secretes monoclonal immunoglobulin M (IgM). WM cells are usually unable to undergo class switch recombination, and have mutated IGHV, with a typical immunophenotype CD19(+)/CD22(low+)/CD23(-)/CD25(+)/CD27(+)/CD45(+)/CD38(low+)/SmIgM(+) (negative for CD5, CD10, CD11c, CD103). This immunophenotype matches memory B cells (smIgM(-/+)/CD10(-)/CD19(+)/CD20(+)/CD27(+)/CD38(low+)/CD45(+)), representing 30% of B cells in the blood. Fifty percent of them have not undergone class switch recombination and are IgM(+). These cells have suffered somatic hypermutation as WM cells. Genetic abnormalities do not abrogate the capacity to progress to plasma cells that usually belong to the clonal WM compartment, with a normal immunophenotype and functional characteristics. However, some WM cells are CD27(-), MYD88(WT), without somatic hypermutation, or with class switch recombination capable of reactivation. Thus, most data support a B-memory-cell origin for WM, but a small fraction of cases may have a different origin.
Revista:
BRITISH JOURNAL OF HAEMATOLOGY
ISSN:
0007-1048
Año:
2011
Vol.:
155
N°:
1
Págs.:
73 - 83
The role of epigenetic mechanisms in the regulation of microRNAs (miRNAs) with a tumour-suppressor function in human neoplasms has recently been established. Several miRNAs have been found to be inappropriately regulated by DNA methylation in patients with acute lymphoblastic leukaemia (ALL). We analysed the methylation status of the three members of the MIR9 family (MIR9-1, MIR9-2 and MIR9-3) in a uniformly treated cohort of 200 newly diagnosed ALLs. MIR9 was methylated in 54% of the patients and was associated with downregulation of MIR9 (P < 0.01). Hypermethylation of MIR9 was an independent prognostic factor for disease-free survival, overall survival and event-free survival in a multivariate analysis (P < 0 01). Epigenetic downregulation of MIR9 induced upregulation of its targets, FGFR1 and CDK6, while treatment of ALL cells with FGFR1 (PD-173074) and CDK6 (PD-0332991) inhibitors induced a decrease in cell proliferation and an increase in apoptosis of ALL cells. Our results indicate that the MIR9 family is involved in the pathogenesis and clinical behaviour of ALL and provide the basis for new therapeutic strategies in the treatment of ALL, targeting the epigenetic regulation of miRNAs and/or the FGFR1 or CDK6-RB pathway directly
Revista:
PLOS ONE
ISSN:
1932-6203
Año:
2011
Vol.:
6
N°:
2
Págs.:
e17012
Aberrant DNA methylation is one of the most frequent alterations in patients with Acute Lymphoblastic Leukemia (ALL). Using methylation bead arrays we analyzed the methylation status of 807 genes implicated in cancer in a group of ALL samples at diagnosis (n¿=¿48). We found that 154 genes were methylated in more than 10% of ALL samples. Interestingly, the expression of 13 genes implicated in the TP53 pathway was downregulated by hypermethylation. Direct or indirect activation of TP53 pathway with 5-aza-2'-deoxycitidine, Curcumin or Nutlin-3 induced an increase in apoptosis of ALL cells. The results obtained with the initial group of 48 patients was validated retrospectively in a second cohort of 200 newly diagnosed ALL patients. Methylation of at least 1 of the 13 genes implicated in the TP53 pathway was observed in 78% of the patients, which significantly correlated with a higher relapse (p¿=¿0.001) and mortality (p<0.001) rate being an independent prognostic factor for disease-free survival (DFS) (p¿=¿0.006) and overall survival (OS) (p¿=¿0.005) in the multivariate analysis. All these findings indicate that TP53 pathway is altered by epigenetic mechanisms in the majority of ALL patients and correlates with prognosis. Treatments with compounds that may reverse the epigenetic abnormalities or activate directly the p53 pathway represent a new therapeutic alternative for patients with ALL.
Revista:
JOURNAL OF NEURO-ONCOLOGY
ISSN:
0167-594X
Año:
2011
Vol.:
103
N°:
3
Págs.:
603 - 609
Central nervous system (CNS) prophylaxis is required during initial treatment of non-Hodgkin lymphoma (NHL) subtypes that carry a high risk of CNS involvement. Intrathecal (IT) liposomal cytarabine, a formulation with prolonged half-life, has been shown to be safe and effective in the treatment of meningeal disease in patients with high-grade lymphoma. We retrospectively reviewed all adult patients with high-grade NHL that received prophylactic therapy with IT liposomal cytarabine and developed neurologic complications in our institution between April 2007 and May 2009. We recorded information on hospital admission, chemotherapy regimens, clinical features, neuroimaging, cerebrospinal fluid, neurophysiology data, and outcome. Neurotoxicity was graded according to the National Cancer Institute Common Toxicity Criteria (NCI-CTC). Four of fourteen patients (28%) developed moderate or severe neurotoxicity (grades 2 and 3 of the NCI-CTC), manifested as conus medullaris/cauda equine syndrome or pseudotumour cerebri-like syndrome, after a median of 3.5 IT courses of liposomal cytarabine. All patients had received corticosteroids to prevent arachnoiditis. Liposomal cytarabine given via the IT route, even with concomitant corticosteroid administration, can result in significant neurotoxicity in some patients. We discuss the potential pathogenesis of these effects and suggest hypothetical therapeutic measures to prevent these complications. Specialists should be aware of these possible complications when administering prophylactic IT liposomal cytarabine in high-grade NHL patients, and additional prospective studies should be conducted to more clearly delineate the frequency and characteristics of these complications.
