Overexpression of Calreticulin in Clonal Al Plasma Cells is Associated with Response to Melphalan and Autologous Stem Cell Transplant in Systemic Light-Chain (Al) Amyloidosis

2007 ◽  
pp. 310-312
Author(s):  
P Zhou ◽  
R Comenzo ◽  
J Teruya-Feldstein ◽  
A Olshen
Keyword(s):  
Stem Cell ◽  
Light Chain ◽  
Stem Cell Transplant ◽  
Plasma Cells ◽  
Autologous Stem Cell Transplant ◽  
Al Amyloidosis ◽  
Cell Transplant

Outcomes and Treatments of Relapsed AL Amyloidosis Following Stem Cell Transplant

Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 1858-1858 ◽  
Author(s):  
Rahma Warsame ◽  
Soo-Mee Bang ◽  
Shaji K. Kumar ◽  
Martha Q Lacy ◽  
Francis K Buadi ◽  
...  
Keyword(s):  
Stem Cell ◽  
Stem Cell Transplant ◽  
Plasma Cells ◽  
Conflicts Of Interest ◽  
Treatment Options ◽  
Autologous Stem Cell Transplant ◽  
Al Amyloidosis ◽  
Cell Transplant ◽  
Post Transplant

Abstract Abstract 1858 Systemic light chain amyloidosis (AL amyloidosis) is a condition where clonal plasma cells produce misfolded insoluble immunoglobulin light chains that deposit in various organs causing progressive organ dysfunction. Chemotherapy and autologous stem cell transplant (ASCT) when eligible is the standard treatment options for patients with AL amyloidosis. There are several studies who report long term outcomes of patient post ASCT. However, there is a paucity of literature describing the outcomes of patients who have received ASCT but have relapsed. We performed a retrospective study to assess the outcomes and treatment regimens employed following relapse after ASCT. Between 1996 and 2009, 410 patients received ASCT at the Mayo Clinic as first line therapy. Of those 410 patients 42 patients died within 3 months of transplant, 64 patients died without documented relapse, 158 patients were alive without documented progression, and 146 patients had documented progression. Those 146 patients are the subject of our study. The median time to hematologic relapse was 2 years (range: 0.2–15.5 years). At relapse, 59 patients were treated with IMiD based therapy, 36 with alkylator based therapy, 24 with bortezomib, 15 with steroids, and 5 with second ASCT. The respective hematologic response rates were 58%, 33%, 50%, 53%, and 60%. The remaining six patients were not evaluable for response for one other following reasons: organ transplants; no further therapy; inevaluable disease. With a median post relapse follow up of 3.6 years, the median overall survival (OS) from the first post ASCT relapse was 4.6 years. The median post transplant follow up was 6.1 years, the median OS for these patients was 7.3 years from the time of transplant. These data provide novel information about outcomes after SCT relapse, which should be useful not only for patients and doctors but also for investigators designing studies for salvage therapies post-transplant. Disclosures: No relevant conflicts of interest to declare.

Definition of a high-risk population among patients with AL amyloidosis not undergoing autologous stem cell transplantation using bone marrow plasmacytosis and the presence of CRAB.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 8516-8516
Author(s):  
Taxiarchis Kourelis ◽  
Morie Gertz ◽  
Martha Lacy ◽  
Francis Buadi ◽  
Suzanne R. Hayman ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Stem Cell ◽  
Stem Cell Transplant ◽  
Plasma Cells ◽  
Autologous Stem Cell Transplant ◽  
Bone Lesions ◽  
High Risk Population ◽  
Al Amyloidosis ◽  
Cell Transplant ◽  
Beta 2 Microglobulin

8516 Background: There is consensus that light chain amyloidosis (AL) patients with CRAB criteria (abnormal calcium or renal function, anemia or lytic bone lesions) also have multiple myeloma (MM). These patients are typically excluded from AL trials; however, AL patients with >= 10% bone marrow plasma cells (BMPC) in the absence of CRAB are included in trials along with AL with < 10% BMPC. We postulated that the currently used dichotomy may be incorrect and examined the spectrum of AL with and without MM. Methods: We identified 1,272 patients with AL seen within 90 days of diagnosis, between January 1, 2000, and December 31, 2010. We defined the population of patients with coexisting MM based on the existence of CRAB (AL-CRAB-MM). Patients without CRAB were divided into two groups, AL-only (<10% BMPC) and AL-PC-MM (>=10% BMPC). Results: Among the 1,272 patients, 117 (9%) had AL-CRAB-MM, 476 (37%) had AL-PC-MM, and 679 (53%) had AL only. Their respective median overall survivals (OS) were 16.2, 15.8, and 28.4 months (p<0.0001). Autologous stem cell transplant (ASCT) was performed in 203 (30%), 138 (29%) and 23 (20%) patients respectively. Since the outcomes of AL-CRAB-MM and AL-PC-MM were similar, they were pooled for univariate and multivariate analyses. On multivariate analysis, AL-CRAB-MM and AL-PC-MM retained negative prognostic value independent of age, cardiac stage, prior autologous stem cell transplant (ASCT), beta 2 microglobulin, and dFLC. We next considered whether patients received ASCT as part of their treatment. For those patients who never received ASCT, the 5-year OS were 19%, 14%, and 31%, p<0.001, for AL-CRAB-MM, AL-PC-MM, and AL only respectively. In contrast, for those patients who received ASCT, the respective 5-year OS were 46%, 56%, and 73%, p<0.001. Conclusions: AL patients with >=10% BMPCs have a poor prognosis similar to patients with AL-CRAB-MM and should therefore be considered as AL with MM.

scholarly journals Autologous Stem Cell Transplant for AL Amyloidosis

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Vivek Roy
Keyword(s):  
Stem Cell ◽  
Amyloid Fibrils ◽  
Stem Cell Transplant ◽  
Plasma Cells ◽  
Cell Clone ◽  
Treatment Options ◽  
Proteasome Inhibitors ◽  
Autologous Stem Cell Transplant ◽  
Al Amyloidosis ◽  
Cell Transplant

AL amyloidosis is caused by clonal plasma cells that produce immunoglobulin light chains which misfold and get deposited as amyloid fibrils. Therapy directed against the plasma cell clone leads to clinical benefit. Melphalan and corticosteroids have been the mainstay of treatment for a number of years and the recent availability of other effective agents (IMiDs and proteasome inhibitors) has increased treatment options. Autologous stem cell transplant (ASCT) has been used in the treatment of AL amyloidosis for many years. It is associated with high rates of hematologic response and improvement in organ function. However, transplant carries considerable risks. Careful patient selection is important to minimize transplant related morbidity and mortality and ensure optimal patient outcomes. As newer more affective therapies become available the role and timing of ASCT in the overall treatment strategy of AL amyloidosis will need to be continually reassessed.

scholarly journals Is a severe and early neuropathy related to bortezomib? Is it related to the treatment response? 

2020 ◽  
Vol 8 (2) ◽  
pp. 19-21
Author(s):  
Maria Pereiro Sanchez ◽  
María Perfecta Fernández Gonzalez ◽  
María del Carmen López Doldán ◽  
Aurea María Gómez Marquez ◽  
José Luis Sastre Moral ◽  
...  
Keyword(s):  
Stem Cell ◽  
Standard Treatment ◽  
Stem Cell Transplant ◽  
Plasma Cells ◽  
White Male ◽  
Complete Response ◽  
Autologous Stem Cell Transplant ◽  
Lower Limbs ◽  
Bone Lesions ◽  
Cell Transplant

Myeloma is characterized by the neoplastic proliferation of a clone of plasma cells that invades the bone, causes destruction of the skeleton, and causes bone pain and fractures. In addition, other important features are anemia, hypercalcemia and renal failure. The standard treatment in Spain for autologous stem cell transplant (ASCT)-eligible patients is VTD (bortezomib, thalidomide, dexamethasone). Both bortezomib and thalidomide can cause or exacerbate an existing neuropathy. The mechanism by which they produce it is different in the two drugs.1 A 52-year-old white male was referred to our hospital for the evaluation of anemia (12 g/dL) and serum monoclonal protein (>4 g/dL). The diagnosis was a high cytogenetic risk MM stage R-ISS IIIA, without bone lesions. He only presented mild anemia. He started treatment with standard doses and in accordance to the usual protocol in a candidate patient for autologous stem cell transplant, based on a thalidomide and bortezomib scheme. On the 15th day of the 2nd cycle, the patient showed an autonomic neuropathy and an affectation of the deep sensibility, predominantly the vibratory and proprioceptive with generalized muscle weakness predominant in the lower limbs. He had no pain. He was totally dependent for the basic activities of daily life. Regarding the MM response, the patient showed a strict complete response. This case illustrates a young man with a high cytogenetic risk MM who developed an acute and early polyneuropathy grade IV after 1.5 cycles of standard treatment and with myeloma in strict complete response. The remarkable aspect about this case is the severe and early neuropathy, and an early, deep and persistent myeloma response. On some occasions this relationship has been reported, and we report an example of it.

scholarly journals Sequential response-driven bortezomib-based therapy followed by autologous stem cell transplant in AL amyloidosis

2020 ◽  
Vol 4 (17) ◽  
pp. 4175-4179
Author(s):  
Marco Basset ◽  
Paolo Milani ◽  
Mario Nuvolone ◽  
Francesca Benigna ◽  
Lara Rodigari ◽  
...  
Keyword(s):  
Stem Cell ◽  
Partial Response ◽  
Stem Cell Transplant ◽  
Complete Response ◽  
Autologous Stem Cell Transplant ◽  
Survival Duration ◽  
Al Amyloidosis ◽  
Cell Transplant ◽  
Duration Of Response ◽  
Landmark Analyses

Abstract Autologous stem cell transplant (ASCT) is highly effective in selected patients with light chain (AL) amyloidosis. Bortezomib, preceding or following ASCT, improves responses. Satisfactory responses, including at least a partial response, very good partial response (VGPR) with organ response, or complete response, can be observed after induction therapy alone. We report 139 patients treated upfront with cyclophosphamide/bortezomib/dexamethasone (CyBorD), followed by ASCT only if response was unsatisfactory. Only 1 treatment-related death was observed. After CyBorD, hematologic response (HR) rate was 68% (VGPR or better, 51%), with 45% satisfactory responses. Transplant was performed in 55 (40%) subjects and resulted in an 80% HR rate (65% ≥ VGPR). Five-year survival was 86% and 84% in patients treated with ASCT or CyBorD alone, respectively (P = .438). Also, 6- and 12- month landmark analyses did not show differences in survival. Duration of response was not different in the 2 groups (60 vs 49 months; P = .670). Twenty-one (15%) patients with an unsatisfactory response to CyBorD could not undergo ASCT because of ineligibility or refusal; instead, they received rescue chemotherapy, with HR in 38% of cases and 51% 5-year survival. This sequential response-driven approach, offering ASCT to patients who do not attain satisfactory response to upfront CyBorD, is very safe and effective in AL amyloidosis.

Impact of consolidation therapy post autologous stem cell transplant in patients with light chain amyloidosis

2019 ◽  
Vol 19 (10) ◽  
pp. e305
Author(s):  
Abdullah S. Al Saleh ◽  
M Hasib Sidiqi ◽  
Surbhi Sidana ◽  
Eli Muchtar ◽  
Angela Dispenzieri ◽  
...  
Keyword(s):  
Stem Cell ◽  
Light Chain ◽  
Stem Cell Transplant ◽  
Autologous Stem Cell Transplant ◽  
Cell Transplant ◽  
Consolidation Therapy ◽  
Light Chain Amyloidosis

P-021: Experience with autologous stem-cell transplant (auto-SCT) in patients with systemic light-chain amyloidosis (LA) at our center

2021 ◽  
Vol 21 ◽  
pp. S51
Author(s):  
Javier Díaz Carbonero ◽  
Elena Medina Guerrero ◽  
Albert Pérez Montaña ◽  
Antonio Gutierrez García ◽  
Jose María Sánchez Raga ◽  
...  
Keyword(s):  
Stem Cell ◽  
Light Chain ◽  
Stem Cell Transplant ◽  
Autologous Stem Cell Transplant ◽  
Cell Transplant ◽  
Light Chain Amyloidosis

Induction Therapy with Bortezomib and Dexamethasone Followed By Autologous Stem Cell Transplantation for Systemic Light Chain Amyloidosis: Our Experience

Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 5907-5907
Author(s):  
Sandeep Jain ◽  
Luciano J Costa ◽  
Robert K Stuart ◽  
Saurabh Chhabra ◽  
Alice Mims ◽  
...  
Keyword(s):  
Stem Cell ◽  
Cardiac Involvement ◽  
Stem Cell Transplant ◽  
Patient Characteristics ◽  
Autologous Stem Cell Transplant ◽  
High Dose ◽  
Al Amyloidosis ◽  
Cell Transplant ◽  
High Dose Melphalan

Abstract Introduction: The optimal treatment approach for systemic AL amyloidosis remains unclear. Autologous stem cell transplant (ASCT) is the only modality associated with long term survival, but failure to show survival benefit in randomized clinical trial raises doubts about its efficacy 1, 2. Outcomes after ASCT are better in patients who achieve complete hematologic response after the ASCT3. One report has shown improved outcomes with combining one dose of the proteasome inhibitor bortezomib with high dose melphalan as part of conditioning regimen 4. Preliminary data from a recent study suggest that the outcome of treating AL amyloidosis with two cycles of bortezomib and dexamethasone followed by ASCT was superior to the outcome of the ASCT alone5. We describe our experience with giving 4-6 cycles of bortezomib and dexamethasone induction prior to high dose melphalan and ASCT in patients with systemic AL amyloidosis. Patients and methods: We included all patients who underwent autologous transplant for symptomatic systemic AL amyloidosis at our institution from October 2010 till June 2014. Five patients were included in the analysis and patient characteristics are described in table 1. All patient received 4 -6 cycles of induction with bortezomib and dexamethasone followed by autologous stem cell transplant using high dose melphalan (200 mg/m2). One patient also received six cycles of lenalidomide and dexamethasone prior to bortezomib based induction for lack of response. Hematologic and organ response were assessed using the definitions from the 10th International symposium on Amyloid and Amyloidosis. Overall survival was calculated by Kaplan Meyer’s method using Graphpad Prism 6.0 software. Results: There was no transplant related mortality. After median follow up of 13 months (12-25 months) all patient are alive. Toxicities from the ASCT were mostly cytopenias in the immediate post-transplant period which were managed as per the standard of care. Two patients achieved hematological complete response while one more had very good partial response and other two achieved partial response. Of the four patients with nephrotic range proteinuria, two patients had > 95% reduction in proteinuria, one had > 75% reduction in proteinuria and another patient had > 50% reduction in proteinuria. One patient had Liver involvement with elevated alkaline phosphatase which normalized post-transplant (table 2). The responses were maintained on last follow up and none of the patient had hematological or organ relapses. Discussion: Bortezomib alone and in combination with steroids has shown efficacy in AL amyloidosis, but its role in induction prior to high dose melphalan/ASCT to help achieve deeper hematological response is unknown. Our experience shows that this combination may be highly efficacious without significant toxicity. Limitations of our study include the small number of patients and absence of any patients with cardiac involvement, which is a worse prognostic marker. We conclude that the bortezomib and dexamethasone induction followed by high dose melphalan/ASCT for AL amyloidosis should be studied in prospective trials. Table 1.Patient Characteristics n=5Age, years 51.2 (44-62)Race (Caucasian)4 (80%)Gender ( female)3 (60%)Cardiac involvement 0 (0)Renal involvement 4 (80%)Serum creatinine ≥ 2.5 0 (0)Organ involvement ≥21 (20%)BM plasma cells > 10%1 (20%)Hgb ≤ 10 g/dl0 (0)LVEF <50%0 (0)Induction therapy Bortezomib/dexamethasone only4 (80%)Lenalidomide/dexamethasone + Bortezomib/dexamethasone1 (20%) Table 2. Outcomes n=5 Baseline After ASCT Hematologic response n=5 M protein 0.772 gm/dl 0.096 gm/dl 2 CR, 1 VGPR, 2 PR Renal response n=4 24 hours proteinuria 3.13 gm 0.432 gm 2 > 95% reduction, 1 >75% reduction, 1 >50 % reduction. Liver response n=1 Alkaline phosphatase 700 IU/L 62 IU/L Disclosures No relevant conflicts of interest to declare.

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