Six Years of Experience and Outcome with Maintenance Therapy with Very Low Dose Thalidomide after Auto-SCT in Multiple Myeloma

Abstract New drugs and high dose therapy with auto-transplantation (auto-SCT) has improved prognosis of multiple myeloma (MM). New drugs are promising in upfront therapy while the role of maintenance is still debated. Thalidomide (thal) is an active drug in the treatment of myeloma, and is been investigated as first line therapy, the limit of this drug is the toxicity dependent dose and this determines a poor compliance. It could be useful in the control of minimal residual disease. We used low dose of thal as maintenance after autologous transplantation in patient with MM from January 2002 and here we bring our experience after six years of observation. From January 2002 to August 2008 17 patients (8 males and 9 females) with MM have been treated in our institution. Median age was 59,5 years (range 48–72). 10 were IgG, 3 IgA, 3 light chains and 1 plasma-cell leukaemia. Treatment was 4 cycles of VAD regimen followed by auto-SCT. 4/17 performed double auto-SCT. Three months after SCT these patients has begun the maintenance with thal 50 mg/die, to start thal maintenance 9 patients were in CR, 5 in PR and 3 in resistant disease and the median somministration of thal has been of 12 months (range 3–24 months). Median follow up from the beginning of maintenance therapy was 40 months (range 4–76) with 11/17 (64%) patients in CR or stable disease, with progression free survival (PFS) and overall survival (OS) projected at 75 months respectively of 53% and 51% from to start thal. In our experience we have observed a neurological toxicity (grade I–III) in the 65% of the patients but only 4 have had to suspend the treatment; a haematological toxicity of grade I in the 55% of the patients that have not behaved interruption of the treatment and finally in any case we have documented thrombotic episodes. Finally we have compared this group of patients with another group (18 patients) with the same clinical characteristics that we have observed in the same period but that have not effected maintenance with thal. In this last group 13/18 patients (72%) relapsed with median follow-up of 36 months (range 14–75) and median PFS and OS of 16 and 30 months respectively. The difference between the 2 groups is statistically significant for PFS (p: 0.003) and OS (p: 0.04). The median overall survival observed after progression, in the two groups, has been of 13 months in thal group and 17 months in the group of patients that have not effected the maintenance, this difference is not statistically different (p:0.06). In conclusion in 6 years of observation our experience has shown, even if the number of the patients is small, that maintenance with low doses of thal, after auto-transplantation, it not only has a good compliance but it improves the PFS and OS in this cohort and it doesn’t worsen the OS from the relapse.

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Melphalan/prednisone/lenalidomide (MPR) versus high-dose melphalan and autologous transplantation (MEL200) plus lenalidomide maintenance or no maintenance in newly diagnosed multiple myeloma (MM) patients.

Journal of Clinical Oncology ◽

10.1200/jco.2013.31.15_suppl.8509 ◽

2013 ◽

Vol 31 (15_suppl) ◽

pp. 8509-8509 ◽

Cited By ~ 11

Author(s):

Mario Boccadoro ◽

Federica Cavallo ◽

Francesca Maria Gay ◽

Francesco Di Raimondo ◽

Arnon Nagler ◽

...

Keyword(s):

Maintenance Therapy ◽

Autologous Transplantation ◽

Previous Treatment ◽

New Drugs ◽

High Dose ◽

Risk Of Progression ◽

Treatment Paradigm ◽

High Dose Melphalan ◽

To Receive

8509 Background: The incorporation of new drugs into induction, consolidation, and maintenance therapy is changing the treatment paradigm of MM. Methods: At diagnosis, 402 pts (< 65 years) were randomly assigned to receive six MPR cycles (N=202) or tandem MEL200 (N=200). After MPR or MEL200, pts were further randomized, within each group, for no maintenance (N=204) or lenalidomide maintenance (N=198). A 2x2 factorial randomized trial was designed. The primary end point was PFS. An enrolment of 170 pts/arm was required to demonstrate a 15% improvement of PFS at 2 years (2-sides a = 0.05, 1- β 80%). Results: After a median follow-up of 45 mos from diagnosis, the median PFS was 25 mos with MPR and 39 mos with MEL200 (p=.0002). Median PFS were 37.5 mos for maintenance and 25.7 mos for no maintenance (p=.0008). The 4-year OS from diagnosis was 71% with MPR and 72% with MEL200 (p=0.71), 76% for maintenance and 68% for no maintenance (p=.08). After a median follow-up of 32 mos from start of maintenance, the median PFS was for 41 mos for maintenance and 18 mos for no maintenance (p<.0001). The 3-year OS from start of maintenance was 81% for maintenance and 72% for no maintenance (p=.04). Conclusions: MEL200 significantly prolonged PFS in comparison with MPR. Lenalidomide maintenance significantly reduced the risk of progression independently from the previous treatment. OS is similar between MPR and MEL200, with a trend for an improved OS in pts receiving lenalidomide as maintenance therapy. Clinical trial information: NCT00551928. [Table: see text]

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Double Autologous Transplant Versus Tandem Autologus - Non Myeloablative Allogeneic Transplant for Newly Diagnosed Multiple Myeloma.

Blood ◽

10.1182/blood.v106.11.46.46 ◽

2005 ◽

Vol 106 (11) ◽

pp. 46-46 ◽

Cited By ~ 4

Author(s):

B. Bruno ◽

M. Rotta ◽

F. Patriarca ◽

N. Mordini ◽

B. Allione ◽

...

Keyword(s):

Multiple Myeloma ◽

Low Dose ◽

High Dose Chemotherapy ◽

High Dose ◽

Newly Diagnosed ◽

Allogeneic Hct ◽

Autologous Transplant ◽

Autologous Hct ◽

Beta 2 Microglobulin

Abstract Allogeneic approaches employing low dose TBI nonmyeloablative conditionings reported a dramatic reduction of transplant-related mortality (TRM) compared to conventional high dose regimens in newly diagnosed multiple myeloma (MM) (Maloney et al, Blood, 2003). The role of allografting, however, compared to autologous HCT remains to be determined. From September 1999 to July 2004, 241 consecutive MM patients, up to the age of 65, were diagnosed at five academic Italian Institutions. Overall, 194/241 had natural siblings (Table 1): 158/194 (81%) were HLA typed, while 36/194 (19%) were not typed for the following reasons: patients not eligible for high dose chemotherapy (n. 14); siblings not eligible for peripheral hematopoietic cell (PHC) donation (n.11); patient refusal to high dose chemotherapy (n. 9), unknown (n.2). Seventy-six/158 (48%) with a matched donor were offered a tandem autologous- nonmyeloablative allogeneic HCT approach. Eventually, 56/76 (73%), the “auto-allo group”, were enrolled while 20 did not enter the tandem program as 5 siblings (5/76, 7%) were not eligible for PHC donation, 5 patients refused an allogeneic HCT, and 10 patients preferred allografting as a possible salvage treatment. Of 102 patients without matched donors or after refusal to allografting, 73, “double-auto group”, underwent a standard double autologous transplant while 29 received less intense treatments because of clinical conditions or patient preference. Table 1 Newly diagnosed pts 241 With sibs/without sibs 194 /47 (total 241) HLA typed /not HLA typed 158 /36 (total 194) Matched sibs /No matched sibs 76 /82 (total 158) Auto-Allo”/“Double Auto”/Other”“ 56 /73 /29 (total 158) After induction chemotherapy, patients of both groups underwent G-CSF mobilised autografting with high dose melphalan (200 mg/m2). In the “auto-allo” group, the autologous HCT was followed, 2-4 months later, by low dose (2.0 Gy) TBI, allogeneic PHC infusion, and post transplant mycophenolate mofetil and cyclosporin. In the “double-auto group”, patients received a second autologous HCT. Patients characteristics were as follows: age: 54 (range 34–65) vs 53 (range 33–64) (p=ns); stage III myeloma: 77% vs 64% (p=0.03); beta 2 microglobulin > 2,5 mg/dl: 75% vs 59% (p=0.005), for the “auto-allo group” and for “the double-auto group”, respectively. At the time of this analysis, 56/56 of the “auto-allo group” and 55/73 of “the double-auto group” had completed the transplant programs. After median follow up of 3 years (range 11–80 months), TRM was 11% vs 4% (p=0.09); complete remission rates, defined as the disappearance of the monoclonal paraprotein by immunofixation, were 46% vs 16% (p=0.0001); overall survivals were 84% versus 62% (p=0.003); progression free survivals were 75% vs 41% (p=0.00008); event free survivals were 61% (34/56)% vs 38% (30/73) (p=0.006) in the “auto-allo group” and in the “double-auto” group, respectively. Longer follow up is needed, however data suggest that the “auto- non myeloablative allo” approach is not inferior to “double autologous” HCT in newly diagnosed MM.

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Primary Plasma Cell Leukaemia and Autologous Stem Cell Transplantation.

Blood ◽

10.1182/blood.v110.11.731.731 ◽

2007 ◽

Vol 110 (11) ◽

pp. 731-731

Author(s):

Mary B. Drake ◽

Simona Iacobelli ◽

Anja van Biezen ◽

Jane F. Apperley ◽

Dietger W. Niederwieser ◽

...

Keyword(s):

Multiple Myeloma ◽

Overall Survival ◽

Plasma Cell ◽

Autologous Transplantation ◽

Cell Leukaemia ◽

Rank Test ◽

Tumour Mass ◽

Data Set ◽

Significant Difference ◽

Plasma Cell Leukaemia

Abstract Introduction: Primary plasma cell leukaemia (PCL) is a rare disorder representing less than 5% of malignant plasma cell disease and is associated with a poor prognosis with median survivals in PCL reported at 8 to 12 months, significantly shorter than for Multiple Myeloma even when the comparison is adjusted to compare only with Multiple Myeloma of high tumour mass. Treatment of PCL with alkylating agent-based therapy is ineffective and while polychemotherapy may offer improved survival, results remain disappointing with a few exceptions. Autologous transplantation is now being used widely in the treatment of these patients and this report summarises the European Blood and Marrow Transplant (EBMT) experience of this disorder. Patients and Methods: A retrospective study was carried out with 20844 patients with common type multiple myeloma (58% IgG, 21% IgA and 19% light chain types only) and 272 patients with primary plasma cell leukaemia who underwent first autologous transplantation between 1980 and 2006. All patients were reported to the EBMT registry using MED-A (limited data set) or MED-B (more extensive data set) forms. All autografted patients were included in the study regardless of the availability of complete MED-A or MED-B data. The proportion of patients that could be evaluated for each parameter was noted and the number of evaluable patients included in the result. Comparisons between the two groups were made using Chi-squared test for categorical data and the Mann-Whitney test for continuous data. Overall Survival and Progression-Free Survival were calculated using the Kaplan-Meier method and comparisons were made using the Log-Rank test. Relapse/Progression and Death without relapse or progression probabilities were computed by the proper non-parametric estimator for outcomes with competing risks and compared by the Gray test. Results: There were no significant differences in age and gender of the PCL and myeloma groups. Calcium and albumin were also not significantly different, however, haemoglobin was significantly lower in the PCL group (11g/dl versus 9g/dl - P=0.000) while creatinine was significantly higher in the PCL group - 92 micro mol/l versus 122 micro mol/l - P=0.000). B2 microglobulin was significantly higher in the PCL group which tends to be diagnosed with a more advanced disease. There was no difference in the type of graft used or in the use of total body irradiation but the PCL group were transplanted within a shorter time from diagnosis (6.0 v 7.7 months - P=0.000). While there was no significant difference in engraftment, PCL patients were more likely than myeloma patients to enter CR post-autologous transplantation. Despite this, overall survival for the PCL patients was greatly inferior to the myeloma patients - 62.3 months (CI 60.4–64.3) versus 25.7 months (CI 19.5–31.9 - P=0.000). Poor survival is accounted for by an increase in relapse-related mortality and post-transplant responses of short duration. Conclusion: This is the largest study of plasma cell leukaemia patients ever reported. Our data shows an improved outcome for these patients with use of autologous transplantation but undoubtedly this transplant group represents the fittest of such patients and their outcome is still greatly inferior to comparable myeloma patients.

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An Update of a Comparison of Nonmyeloablative Allografting with Autografting for Newly Diagnosed Myeloma.

Blood ◽

10.1182/blood.v110.11.482.482 ◽

2007 ◽

Vol 110 (11) ◽

pp. 482-482

Author(s):

B. Bruno ◽

R. Sorasio ◽

F. Patriarca ◽

N. Mordini ◽

B. Allione ◽

...

Keyword(s):

Statistical Power ◽

Autologous Transplantation ◽

New Drugs ◽

High Dose ◽

Newly Diagnosed ◽

Cox Models ◽

Intention To Treat ◽

Hematological Cancers ◽

Intent To Treat

Abstract The concept of genetic randomisation has been applied to assess clinical outcomes between patients with hematological cancers treated with allografting or other therapies. Though not universally accepted, the comparison by the intention-to-treat principle between patients with HLA-identical siblings, who can be assigned to allografting, and those without, who cannot receive an allograft, is used as a surrogate for an unbiased randomisation. We previously published the results of a study where the treatment assignment of 162 newly diagnosed patients younger than 65 years was based only on the presence/absence of an HLA-identical sibling (Bruno et al, N Engl J Med). First-line treatment plans included a cytoreductive autograft followed by a nonmyeloablative allograft (Tandem auto-allo) or a second melphalan-based autograft (Double-auto). Primary endpoints were overall (OS) and event-free (EFS) survivals by intention-to-treat analysis. The 80 patients with a sibling donor were offered a Tandem auto-allo and the 82 without a Double-auto after high (140–200 mg/m2) or intermediate dose melphalan (100 mg/m2). After a median follow up of 45 (range 21–90) months, OS and EFS were significantly longer in patients with donors: 80 versus 54 months (p=0.01) and 35 versus 29 months (p=0.02). Median OS was not reached in the 58 (out of 60 enrolled, 97%) patients who completed Tandem auto-allo and was 58 months in the 46 (out of 59 enrolled, 78%) who completed high-dose double-auto (p=0.03). Here, we report a update analysis. At a median follow up of 56 months, OS was not reached for the 80 patients with an HLA-identical sibling and was 56 months for those without (HR 0.53, CI 95% 0.33–0.86, p=0.009). EFS remained significantly longer in patients with HLA-identical siblings: 35 versus 29 months (HR: 0.61; 95% Cl: 0.42–0.88, p=0.008). Median OS was not reached in the 58 patients who completed Tandem auto-allo and was 63 months in the 46 who completed high-dose double-auto (HR 0.47, CI 95% 0.25–0.86, p=0.016). EFS was 43 and 33 months (HR 0.64, CI 95% 0.40–1.02, p=0.06). By multivariate analysis, the presence of HLA-identical siblings was significantly correlated with longer OS and EFS. We carried out a stratified analysis, on the intent-to-treat population, that defined a patient subgroup at high risk in the light of high b -2-microglobulin levels or presence of del(13). The adjusted HRs by Cox models were 0.34 for OS and 0.52 for EFS similar to those obtained in the whole series. Though this exploratory analysis has low statistical power, its results indicate that del(13) does not offset the advantage in OS and EFS for patients with an HLA-identical sibling, but do not exclude an impact of del(13) in those patients undergoing an allograft. Attal et al. (N Engl J Med) previously reported median OS and EFS of 58 and 30 months, respectively, after double autologous transplantation, consistent with our results (OS: 63 months; EFS: 33 months). However, the EFS after Tandem auto-allo also indicates that long-term disease control is an issue. Allografting and new drugs with molecular targets should not be viewed as mutually exclusive. Thus, it is imperative to thoroughly explore their roles in increasing the response rates and their duration in Tandem auto-allo.

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Durable Remission with Salvage Autotransplants in Patients with Multiple Myeloma.

Blood ◽

10.1182/blood.v114.22.1227.1227 ◽

2009 ◽

Vol 114 (22) ◽

pp. 1227-1227

Author(s):

Nina Shah ◽

Khawaja Fraz Ahmed ◽

Sofia Qureshi ◽

Jatin Shah ◽

Robert Z Orlowski ◽

...

Keyword(s):

Multiple Myeloma ◽

Overall Survival ◽

Median Time ◽

Chromosomal Abnormalities ◽

Retrospective Chart Review ◽

Progression Free Survival ◽

High Dose ◽

Hematopoietic Stem ◽

Remission Duration

Abstract Abstract 1227 Poster Board I-249 Background In comparison with single autologous hematopoietic stem cell transplantation (auto HCT), tandem autologous HCT has resulted in longer event-free and overall survival in randomized trials for patients with newly diagnosed multiple myeloma (MM). Most myeloma patients, however, only receive a single auto HCT. Many of these patients are eligible for a second auto HCT as salvage at the time of relapse. We evaluated the outcome of salvage auto HCT for MM patients treated at our institution. Methods We performed a retrospective chart review and identified 62 MM patients (38 males, 24 females) who received a second auto HCT as salvage between 1/3/1992 and 11/4/2008.. Preparative regimen was high-dose melphalan alone or in combination with other chemotherapy agents, including busulfan, topotecan and bortezomib. Three patients received a combination of thiotepa, busulfan and cyclophosphamide. Results Median interval between the first and salvage auto HCT was 21 months (range 2-81). Median age at salvage HCT was 55 years (37-73) and median prior treatment regimens were 4 (range 2-16). Twelve patients had chromosomal abnormalities on conventional cytogenetic studies. Patients received a median CD34 cell dose of 4 ×106 / kg (range 2.3-11.2). Fourteen patients (22%) experienced grade 3 or higher toxicity after the salvage auto HCT. Two patients died within 100 days with a TRM of 3%. Median time to neutrophil engraftment was 10 days (8-38). Responses after salvage auto HCT were as follows: CR+ near CR 15%, PR 48%, with an overall response rate of 63%. Twenty-seven (44%) patients received post auto HCT maintenance therapy. Median follow-up from salvage HCT was 25 months. Kaplan-Meier estimates of median progression-free survival and overall survival (OS) were 15.5 and 43.3 months, respectively. Median time to progression after the first and salvage auto HCT was 20 and 12 months, respectively, with total remission duration of 32 months from two HCTs. Median OS from the time of diagnosis was 72 months, comparable to reported results with tandem auto HCT. At last follow up, 20 patients were alive and in remission. Conclusions In selected MM patients a second auto HCT for salvage therapy is well tolerated with acceptable toxicity. The combined remission duration and overall survival are comparable to outcomes with tandem autotransplants. Disclosures Qazilbash: Cephalon: Speakers Bureau.

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Lenalidomide Maintenance Therapy After Toxicity-Reduced Myeloablative Allograft As Salvage Therapy for Efractory/Relapsed Myeloma Patients

Blood ◽

10.1182/blood.v118.21.3024.3024 ◽

2011 ◽

Vol 118 (21) ◽

pp. 3024-3024

Author(s):

Nicolaus Kröger ◽

Evgeny Klyuchnikov ◽

Thomas Stübig ◽

Christine Wolschke ◽

Francis Ayuk ◽

...

Keyword(s):

Multiple Myeloma ◽

Overall Survival ◽

Maintenance Therapy ◽

Graft Versus Host Disease ◽

Cumulative Incidence ◽

Myeloablative Conditioning ◽

Host Disease ◽

Graft Versus Host ◽

Grade Iii

Abstract Abstract 3024FN2 Reduced-intensity conditioning (RIC) regimen followed by allogeneic stem cell transplantation (SCT) has become a reasonable treatment option for patients with multiple myeloma who are refractory or have relapse to an autograft. However, in comparison to standard myeloablative conditioning RIC resulted in higher risk of relapse. Maintenance therapy after autologous transplantation has shown to improve survival while after allogeneic SCT data are lacking so far. We here report the results of myeloablative toxicity-reduced allograft consisting of intravenous busulfan (12.2 mg/kg) and cyclophosphamide (120 mg/kg) followed by lenalidomide maintenance in 33 patients with multiple myeloma who relapsed to an autograft. A total of 32 patients had received one (n=16), two (n=15), or even three (n=1) autografts, and 1 patient was refractory to 2 induction therapies and failed to collect autologous stem cells. The median duration of remission after the autograft was 12 months. The primary endpoint of the study was non-relapse mortality at 1 year and secondary objectives were evaluation of response, incidence of acute and chronic graft-versus-host disease as well as progression and overall survival. To prevent graft-versus-host disease antithymocyte globulin (ATG Fresenius®) was given at a median dose of 20 mg/kg on day -3, -2, and -1. Lenalidomide was started earliest at day 120 after transplantation if there were no signs of infection or graft-versus-host disease. The median time between last autograft and allogeneic transplantation was 20 months. 19 patients were treated with fully HLA-matched unrelated donor, 8 patients had a mismatch donor, and 6 patients were transplanted from an HLA-identical sibling. 2 patients died of treatment-related complications resulting in a cumulative incidence of non-relapse mortality at 1 year of 6% (95% CI: 0–14%). After transplantation 27% developed grade II graft-versus-host disease, and severe grade III graft-versus-host disease was seen in 6% of the patients. Complete remission was noted in 46% of the patients, partial remission was seen in 48% and stable disease in 3%. The median interval between allogeneic transplant and start of lenalidomide was 168 days. The median starting dose was 5 mg (range 5–15 mg) without dexamethasone for 21 day followed by 1 week rest. 9 patients did not receive lenalidomide maintenance due to ongoing graft-versus-host disease, cytopenia or patient's wish. The median number of lenalidomide cycles was 6 (range 1–30). During follow-up 13 patients discontinued lenalidomide treatment due to progressive disease (n=6), GvHD (n=3), thrombocytopenia (n=2), or fatigue (n=2). In 10 patients lenalidomide dose could be increased to 10 or 15 mg, respectively. The major toxicities of lenalidomide were acute graft-versus-host disease grade I – III (21%), viral reactivation (12%), thrombocytopenia grade III-IV (12%), neutropenia grade III-IV (6%), peripheral neuropathy grade I-II (12%), or other infectious complications (6%). During follow-up 9 patients experienced relapse resulting in a cumulative incidence of relapse at 3 years of 42% (95% CI: 18–66%). The 3 year estimated probability of progression-free and overall survival was 52 % (95% CI: 28–76%) and 79 % (95% CI: 63–95%), respectively. In the current trial neither the deletion 13q14 nor the use of mismatch donor nor the chemosensitivity prior allogeneic SCT could be identified as risk factor for survival. This study showed that toxicity-reduced myeloablative conditioning regimen is feasible and highly effective in relapsed patients with multiple myeloma resulting in an acceptable treatment-related mortality. Lenalidomide as maintenance therapy is feasible early after transplantation but toxicity especially the induction of graft-versus-host disease should be considered. Disclosures: Kröger: Celgene: Research Funding. Kropff:Janssen-Cilag: Consultancy, Honoraria; Celgene: Consultancy, Honoraria.

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Multiple Myeloma Profile In Latin America: Clinical and Epidemiological Observational Study

Blood ◽

10.1182/blood.v122.21.5327.5327 ◽

2013 ◽

Vol 122 (21) ◽

pp. 5327-5327

Author(s):

Vania T M Hungria ◽

Angelo Maiolino ◽

Gracia Aparecida Martinez ◽

Carmino A De Souza ◽

Rosane Bittencourt ◽

...

Keyword(s):

Multiple Myeloma ◽

Overall Survival ◽

Latin America ◽

Clinical Features ◽

Median Overall Survival ◽

High Dose Chemotherapy ◽

Patterns Of Care ◽

Disease Stage ◽

High Dose

Abstract Introduction Little is known about the incidence and clinical features of Multiple Myeloma (MM) in Latin America. A clinical registry of Latin American (LA) patients with MM represents an opportunity to gain insight into the prevalence of the disease in this region, the patterns of care and the current treatment status in different LA countries. Objective To characterize the demographic and clinical features of patients with multiple myeloma from five LA countries (Brazil, Argentina, Chile, Mexico and Peru) and to create a LA database on MM; in addition to investigating the patterns of care for MM patients in Latin America. Patients and Methods This is an observational, non-intervention study, with a prospective evaluation of data. Eligible patients were diagnosed with multiple myeloma, between January 1, 2005, and December 31, 2007, at any one of the participating centers, regardless of disease stage or treatment modality. The follow-up period extended to at least 5 years for each patient (December 31, 2012). Results Eight hundred and seventy six patients were included. The median age was 60 years old (25-97), 53.4% male and 46.6% female. The median follow-up was 31.4 months, and the median overall survival was 57 months. The median overall survival to patients who received high-dose chemotherapy was 77 months and for patients who received conventional chemotherapy was 48 months (p<0.001). The multivariate prognostic model included patient baseline variables that were associated with mortality in the Kaplan-Meier univariate analyses. Only hypercalcemia, DSS II and III, ISS stage III andnon- high-dose chemotherapy were independent predictors of mortality. Conclusion This current study, which is the largest case series of MM patients in Latin America, recognizes the feasibility of large, collaborative, observational studies among various tertiary-care hematology centers in Latin America. Note We will present more details related to the demographic and most frequently used treatments in Latin America for newly diagnosed and relapsed patients in these LA countries. Disclosures: No relevant conflicts of interest to declare.

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Impact of Addition of Maintenance Therapy to Intensive Induction and Consolidation Chemotherapy for Childhood Acute Myeloblastic Leukemia: Results of a Prospective Randomized Trial, LAME 89/91

Journal of Clinical Oncology ◽

10.1200/jco.2002.07.300 ◽

2002 ◽

Vol 20 (12) ◽

pp. 2774-2782 ◽

Cited By ~ 52

Author(s):

Yves Perel ◽

Anne Auvrignon ◽

Thierry Leblanc ◽

Jean-Pierre Vannier ◽

Gerard Michel ◽

...

Keyword(s):

Overall Survival ◽

Maintenance Therapy ◽

Low Dose ◽

Disease Free Survival ◽

High Dose ◽

Induction Phase ◽

Consolidation Therapy ◽

Free Survival ◽

Childhood Acute Myeloid Leukemia ◽

To Receive

PURPOSE: To determine whether the use of maintenance therapy (MT) delivered after intensive induction and consolidation therapy confers any advantage in childhood acute myeloid leukemia (AML). PATIENTS AND METHODS: A total of 268 children with AML were registered in the Leucámie Aiquë Myéloïde Enfant (LAME) 89/91 protocol. This regimen included an intensive induction phase (mitoxantrone plus cytarabine) and, for patients without allograft, two consolidation courses, one containing timed-sequential high-dose cytarabine, asparaginase, and amsacrine. In the LAME 89 pilot study, patients were given an additional MT consisting of mercaptopurine and cytarabine for 18 months. In the LAME 91 trial, patients were randomized to receive or not receive MT. RESULTS: A total of 241 (90%) of 268 patients achieved a complete remission. The overall survival and event-free survival at 6 years were 60% ± 6% and 48% ± 6%, respectively. For the complete responders after consolidation therapy, the 5-year disease-free survival was not significantly different in MT-negative and in MT-positive randomized patients (respectively, 60% ± 19% v 50% ± 15%; P = .25), whereas the 5-year overall survival was significantly better in MT-negative randomized patients (81% ± 13% v 58% ± 15%; P = .04) due to a higher salvage rate after relapse. CONCLUSION: More than 50% of patients can be cured of AML in childhood. Either drug intensity or each of the induction and postremission phases may have contributed to the outstanding improvement in outcome. Low-dose MT is not recommended. Exposure to this low-dose MT may contribute to clinical drug resistance and treatment failure in patients who experience relapse.

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Carfilzomib-Pomalidomide-Dexamethasone (KPD) in Relapsed/Refractory Multiple Myeloma Patients - an Institutional Retrospective Analysis

Blood ◽

10.1182/blood-2019-131674 ◽

2019 ◽

Vol 134 (Supplement_1) ◽

pp. 5572-5572

Author(s):

Pallavi Mehta ◽

Neha Yadav ◽

Mohan Bhaarat ◽

Sumeet Prakash Mirgh ◽

Vishvdeep Khushoo ◽

...

Keyword(s):

Multiple Myeloma ◽

Maintenance Therapy ◽

Progressive Disease ◽

Conflicts Of Interest ◽

Haematological Toxicity ◽

Response Assessment ◽

Median Number ◽

Entire Cohort ◽

Response Status

Introduction Multiple myeloma has relished the emergence of various novel agents in last few decades. Unfortunately,relapses are still an inevitable part and at each relapse, treatment choice becomes a complex decision making process as these patients usually have exhausted conventional therapeutic regimens.Carfilzomib is a second-in class Proteosome Inhibitor (PI) and has been approved for patientsrefractory to minimum 2 lines of prior therapies. We are, hereby, presenting our initial experience with this novel combination (KPD)in RRMM patients at our centre. Methodology Retrospective study of RRMM patients who received KPD therapy from August 2017 till October 2018. Responses were assessed as per International Myeloma Working Group. Study was approved by Institutional Review Board. Results Total 39 patients were treated with KPD regimen during study period. Median age was 56 (32-74 years) with male ratio of 51.2% (n=20). At baseline presentation, bone disease {n=32 (82%)} was the most common presenting complaint followed by anemia {n=21 (53.8%)} and renal failure {n=16 (41%)}. Most common ISS staging was ISS-3 {n=18(46.1%)} and subtype was Light chain myeloma {n=15 (38.3%)} followed by IgG {n=13 (33.3%)}.Fluorescence In Situ Hybridization (FISH) was available in {n= 10 (25%)} and it was positive for del13q (n=1/10) and del17p (n=1/10) and t(11;14) (n=1/10). (Table-1) Median number of prior lines of chemotherapy was 3(1-15). Thirty-six (91%) patients were relapsed/refractory to both bortezomib and lenalidomide whereas n=3(9%) were relapsed/refractory to bortezomib only. Eleven (30.5%) patients underwent SCT pre KPD therapy including 2/11 patients received double SCT. Pre KPD 25 (64.1%) patients had progressive disease (PD), 10 (25%) had relapse and 4 (11.1%) patients had stable disease (SD). Median number of KPD cycles were 3(1-8). Median number of KPD cycles after which response assessment was donewas 3 (2-8). Median time to treatment response was 3 (2-7) months. ORR was 51.2% {CR-n=5 (12.8%); VGPR-n=5 (12.8%), PR-n=10 (25.6%)} whereas 2 (5.1%) patient had SD and 10 (25.6%) patients had PD at 2-8 cycles. Two (5.1%) patients are yet to be assessed. (Table-1) Common hematological toxicities seen were anemia (n=8), thrombocytopenia (n=13){grade-3/4=30.7%; n=4/13} and neutropenia(n=14){grade3/4=21.4%; n=3/14}.Non haematological toxicity such as cardiac toxicity was not observed in our patients. Pre KPD 2D-ECHO was available for 13 patients and which was normal in all patients. Post 2-4 cycles of KPD, 2D-ECHO was available for 7 patients and all patients had normal ECHO. Carfilzomib induced hypertension was seen in 20 patientsand could be well controlled with antihypertensives. Peripheral neuropathy (grade1/2) was seen in 10 patients. We also observedCarfilzomib induced hyponatremia in one patient.Febrile neutropenia(bacterial =6, viral=4, possible fungal=5) was seen in 14 patients.(Table-2) Twelve (20.5%) patients proceeded to either maintenance therapy or autologous stem cell transplantation (ASCT). Eight patients opted only for maintenance (carfilzomib=5, pomalidomide-dexamethasone=2 and pomalidomide =1). Remaining n=4/12(16%) patients received SCT. Pre SCT response status was VGPR n=2; PR n=1 and SD=1. Post SCT response status was VGPR (n=3) &PR (n=1). Post SCT, 3 patients were started on maintenance therapy as Bortezomib/pomalidomide=1, Pomalidomide/dexamethasone=2. One patient has been continued on KPD as a consolidation therapy. At a median follow-up of 10 months (1-14 months), relapse rate was 12.8% (n=5). Ten (25.6%) patients had PD.Mortality rate was 8.3% (n=3), commonest cause being progressive disease. The estimated mean PFS, OS and EFS of entire cohort was 11.9 months (95% C.I. 10.8- 13 months) (figure-1 a), 13 months (95% C.I. 11.9-14 months) (figure-1 b) and 7.9 months (95% C.I. 6.5-9.3 months) (figure - 1 c) respectively. Conclusion KPD is a well-tolerated regimen for patients with RRMM who have exhausted frontline myeloma regimen, however at the cost of significant side effects like infections and hypertension. It seems to be a convincing regimen as a bridge to ASCT but warrants further studies with longer follow-up to validate our results. Disclosures No relevant conflicts of interest to declare.

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Combined Treatment of Bortezomib, Continuous Low-Dose Cyclophosphamide and Dexamethasone Followed By One Year of Maintenance Treatment for Refractory or Relapsed Multiple Myeloma Patients: A Prospective Phase II Study

Blood ◽

10.1182/blood.v124.21.4733.4733 ◽

2014 ◽

Vol 124 (21) ◽

pp. 4733-4733

Author(s):

Esther GM Waal de ◽

Linda Munck de ◽

Gerhard Woolthuis ◽

Annet velden Van Der ◽

Yvonne Tromp ◽

...

Keyword(s):

Overall Survival ◽

Maintenance Therapy ◽

Research Funding ◽

Low Dose ◽

Progression Free Survival ◽

Free Survival ◽

First Relapse ◽

Grade 3 ◽

One Year

Abstract Introduction: Combination therapy for longer periods but at low dose, also called metronomic scheduling, might be an effective manner to treat patients with relapsing myeloma. In particular if the used agents attack the malignant clone in an alternative manner. Therefore we used the combination of bortezomib, dexametasone and daily low dose of oral cyclophosphamide as an induction regimen followed by one year of maintenance therapy consisting of bortezomib and cyclophosphamide. Methods: Relapsing myeloma patients, bortezomib naïve, were treated with three cycles of 1.3 mg/m2 bortezomib at day 1, 4, 8 and 11, cyclophosphamide 50 mg daily, and 20 mg dexamethasone at day 1, 2, 4, 5, 8, 9, 11 and 12 followed by three cycles of bortezomib 1.6 mg/m2 (day 1, 8, 15 and 2), cyclophosphamide (50 mg) daily and dexamethasone (20 mg) at day 1, 2, 8, 9, 15, 16, 22 and 23. Maintenance therapy consisting of bortezomib 1.3 mg/m2 every two weeks and daily dose of 50 mg cyclophosphamide for one year was applied to patients in partial or complete remission. Primary endpoints were toxicity during re-induction and maintenance therapy. Secondary endpoints were response to treatment and progression free and overall survival. Results: 59 patients with relapsing multiple myeloma were included of whom 69% were in first relapse (Table 1). The upfront treatment consisted mainly of thalidomide-based and vincristine-based chemotherapy and 40% of the patients have been treated with an autologous stem cell transplantation. All 6 cycles of induction chemotherapy could be given in 49% of the patients. Premature discontinuation before starting maintenance therapy was due to toxicity (31%), progressive disease (7%), death (7%) or other reasons (6%). Myelosuppression was the most common side effect with WHO grade 3-4 in 31% of the patients. Neuropathy grade 3-4 was observed in 16% of patients, partially due to the fact that bortezomib was given intravenously during the first 2 yrs of the protocol which included 76% of the patients. Maintenance therapy was started in 47% of the patients with a median duration of 7.3 months (range 0.36.-13.4). Grade 3-4 toxicity was observed in 25% of the patients including infections (n=3) and myelosuppression (n=3) which did not resulted in discontinuation of therapy. Median follow up time was 29 months with an overall response of 62%, and a very good partial response (VGPR), complete remission (CR) in 21% and 7% of the patients respectively. During the maintenance phase an improvement in responsiveness was observed in 25% of the patients. The CR rate increased with 9% to a total of 16%. VGPR rate was 20% and 16% of the patient had a PR. At end of the maintenance therapy 50% of patients started with maintenance had stable disease. The median progression free survival (PFS) was 17.2 months (range 0.13 – 43.5) as depicted in figure 1. and the median overall survival was 21.6 months (range 0.46-54.4, figure 2). During follow up 33 % of the patients died due to progression of MM. Conclusion: The present study demonstrates that combination therapy with bortezomib, continuous low dose cyclophosphamide and dexamethasone is an effective and manageable regimen. Adding a year of maintenance was feasible with limited side effects and an increase in CR rate. Table 1: patient characteristics Patients (%) Age, mean (min,max) 69 (46-86) Sex Male 56 Female 44 Relapse number First relapse 75 Second relapse 20 Third relapse 5 Performance status 0 65 1 29 2 5 M-protein heavy chain IgA 18 IgG 65 Light chain disease 18 Polyneuropathy No 61 Yes 39 Figure 1: Progression free survival Figure 1:. Progression free survival Figure 2: Overall survival Figure 2:. Overall survival Disclosures Waal de: Jansen Cilag: Research Funding. Munck de:Jansen Cilag: Research Funding. Woolthuis:Jansen Cilag: Research Funding. velden Van Der:Jansen Cilag: Research Funding. Tromp:Jansen Cilag: Research Funding. Hoogendoorn:Jansen Cilag: Research Funding. Vellenga:Jansen Cilag: Research Funding. Hovenga:Jansen Cilag: Research Funding.

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