Upfront Autologous Stem Cell Transplantation for Newly Diagnosed Elderly Multiple Myeloma (MM) Patients: A Prospective Multicenter Study

Abstract Introduction: Previous trials have shown that autologous stem cell transplantation (ASCT) is superior to conventional chemotherapy in terms of remission rate and PFS in younger MM patients. Concerns about toxicity and potential efficacy of ASCT in older MM patients lead most centers to limit ASCT indications to patients aged <65 years. However, at the era of novel induction regimens, and because of better patient selection and supportive care, ASCT may prove to be a valid treatment option even in older MM patients. Therefore, some investigators are questioning the widely used 65 years age limit. Patients and Methods: We prospectively analyzed the outcomes of 56 consecutive MM patients who had received ASCT between September 2012 and September 2014 in 6 institutions in France (protocol ClinicalTrials.gov Identifier: NCT01671826). Patients were newly diagnosed MM. For induction therapy, all patients received a bortezomib-based induction regimen (VD, VTD, VCD, or VRD, 4 to 6 cycles) according to center's local guidelines. Mobilization was performed with G-CSF or G-CSF+cyclophosphamide and plerixafor whenever needed. High-dose chemotherapy consisted of either 140 mg/m2 or 200 mg/m2 Melphalan. A short two months consolidation phase post ASCT was allowed (lenalidomide-dexamethasone, VD, VTD, VCD or VRD). No maintenance treatment was given. Response, disease progression and relapse were defined according to the IMWG uniform response criteria. All patients signed an informed consent form according to the EBMT guidelines. Results: At time of diagnosis, median age was 67 (range, 64-74) years with 23% of patients being >70 years. There were 30 males and 26 females. The immunoglobulin subtype was IgG (n=29), IgA (n=15), light chain (n=10), other (n=2). The Salmon and Durie stage was III in 89% of cases (n=47), and the ISS score was I (n=18; 35%), II (n=19; 37%), III (n=14; 27%). Patients had high risk cytogenetics features (t(4;14) and/or del17p) in 9 cases (16%). 10% of patients had a serum creatinine level >176 micromol/L. None of the patients underwent hemodialysis. The Sorror comorbidity score was 0 (34), 1 (6), 2 (2), 3 (6), 6 (1), unknown (7). The median age at time of ASCT was 68 years, and the median time from diagnosis to ASCT was 5 months. In an intention to treat analysis, out of 56 patients, 6 patients could not proceed to ASCT because of an early infectious death (n=1), serious comorbidity (n=2), disease refractoriness to induction (n=1), and failure to collect an adequate PBSC graft (n=2). A median of 5.31x106/Kg CD34+ cells could be collected. Disease status at time of ASCT was: CR (n=12; 24%), VGPR (n=19; 38%), PR (n=17; 34%), and SD/non-responding (n=2; 4%). The conditioning regimen consisted of 140mg/m² melphalan in 18 cases (36%) and 200mg/m2 in 32 patients (64%). Moreover, 4 patients (8%) received a tandem ASCT. The median time for neutrophils and platelets engraftment was 12 days. The day-100 post ASCT non-relapse mortality was 0% and the 2-year NRM was 4.2% (95% CI:[0.3-18.3]). The overall response rate at day 100 was 96% (CR: 34%, VGPR: 47%, PR: 15%, SD/non-responsive: 4%). At 3 months post ASCT, 82% patients were able to receive the planned post ASCT consolidation treatment. After a median follow-up of 12 months, the estimated progression-free (PFS) and overall survival (OS) rates at 2 years were 76% (95%CI: [61.6-94.1]) and 88% (95%CI: [76.7-100]), respectively. The incidences of infectious complications post ASCT, and response rates were comparable between the two melphalan dose levels (p=0.28). However, in the univariate analysis, the 200 mg/m2 melphalan conditioning group showed a better OS rate compared to the 140 mg/m2 group (1-year OS: 100% vs. 67%; p=0.012). Conclusion: These prospective multicenter results indicate that ASCT is a safe and effective treatment modality for elderly, but fit MM patients at the era of novel induction agents. Of note, patients above age 70 did not experience a worse prognosis. Thus, age per se should not be used as an exclusion criterion for ASCT. Longer follow-up data will be presented, but these results already set the frame for a randomized comparison to the non-transplant approaches in this patients' subgroup. Disclosures Garderet: Bristol-Myers Squibb: Consultancy. Touzeau:AbbVie: Research Funding. Stoppa:Janssen: Consultancy, Honoraria; Novartis: Consultancy, Honoraria; Celgene: Consultancy, Honoraria, Research Funding; Amgen: Consultancy, Honoraria. Karlin:Celgene: Honoraria; Janssen: Honoraria; BMS: Honoraria; Amgen: Honoraria; Sandoz: Honoraria, Membership on an entity's Board of Directors or advisory committees. Moreau:Celgene, Janssen, Takeda, Novartis, Amgen: Membership on an entity's Board of Directors or advisory committees.

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Outcome of Autologous Stem Cell Transplantation in Waldenström's Macroglobulinemia

Blood ◽

10.1182/blood-2018-99-116496 ◽

2018 ◽

Vol 132 (Supplement 1) ◽

pp. 2149-2149

Author(s):

Romil Patel ◽

Neeraj Y Saini ◽

Ankur Varma ◽

Omar Hasan ◽

Qaiser Bashir ◽

...

Keyword(s):

Overall Survival ◽

Stem Cell ◽

Stem Cell Transplantation ◽

Board Of Directors ◽

Cell Transplantation ◽

Research Funding ◽

Advisory Committees ◽

First Remission ◽

Relapsed Disease

Abstract Introduction: The role of autologous hematopoietic stem cell transplantation (auto-HCT) in the management of patients with Waldenström Macroglobulinemia (WM), a rare, indolent lymphoma, has not been established. We had previously published our experience with auto-HCT in a small cohort of WM patients1. Here, we present an updated analysis of auto-HCT with a larger cohort of WM patients. Methods and study population: The study cohort was comprised of 29 patients who underwent high-dose chemotherapy and auto-HCT at MD Anderson Cancer Center (MDACC). The Kaplan-Meier method was used to create survival curves. Overall survival (OS) was defined as the duration from date of transplant to death or last date of follow-up in living patients. Progression-free survival (PFS) was defined as the duration from date of transplant to either progressive disease or death, whichever occurred first. Results: Median age at auto-HCT was 60 (range, 43-75 years). Eight patients (28%) had concurrent light chain amyloidosis (AL). Of the five patients who had MYD88 testing completed, 3 were positive for the MYD88 mutation. Additionally, of these 3 patients, 2 were also positive for CXCR4 mutation. Patients received a median of 2 lines (range 1-6) of therapy prior to auto-HCT; 3(10%) patients had primary refractory disease, 8(28%) were in first remission, and 18 (62%) had relapsed disease. Median time from transplant to last follow-up for the surviving patients was 5.3 years. Preparative regimens received by the patients were: Melphalan (n=20), BEAM-R (n=2), Busulfan/Melphalan (n=1), Cyclophosphomaide/Etoposide/total body irradiation (n=1), Thiotepa/Busulfan/Cyclophosphamide (n=1), and Carmustine/Thiotepa (n=1). Three patients further went on to receive allogeneic transplant either after relapse from auto-HCT or due to disease transformation to aggressive lymphoma. Twenty-eight patients achieved engraftment with a median time to neutrophil engraftment of 11 days (range, 10-15 days). One patient suffered primary graft failure due to progression of disease and died 84 days after transplant. Non-relapse mortality was 3.4% at 1 year. All patients were eligible for response evaluation. The median OS from diagnosis was 12.2 years. Overall response rate was 96%: complete response (n=8, 27.6%), very good partial response (n=5, 17.3%), partial response (n=15, 51.7%), and progressive disease (n=1, 3.4%). PFS and OS at 5 years were 43.3% and 62.9%, respectively. Median PFS and OS from auto-HCT were 4.1 and 7.3 years (Fig. 1A). The median OS from auto-HCT in first remission + primary refractory and relapsed disease was 8.2 years and 4.1 years, respectively.16 patients were alive at the time of censoring while 13 patients had died. Causes of death include relapsed disease (n=6), secondary malignancy (n=2), infection (n=1), chronic graft-versus-host disease (n=1), and unknown (n=3). 8 patients (28%) were positive for concurrent AL amyloidosis. The sites of amyloid involvement were kidneys (n=2), lungs (n=1), bone marrow (n=1), heart(n=1), lymph nodes(n=1), gastrointestinal tract (n=1) and subcutaneous fat aspirate(n=5). The median overall survival for patients with amyloid involvement (n=8) was 12 years. On univariate analyses, the number of chemotherapy regimens prior to transplant (≤ 2 vs >2 lines) was the strongest predictor of overall survival (p=0.03, HR 0.3, CI: 0.09-0.9, log-rank) and PFS (p=0.001, HR 0.24, CI: 0.07-0.85, log-rank). The median PFS in patients with ≤ 2 lines and > 2 lines of therapy was 71 months versus 19 months, respectively (Fig. 1B). Conclusion: Auto-HCT is safe and feasible in selected patients with WM, with a high response rate and durable remission even in patients with relapsed or refractory disease. References: Krina Patel et.al. Autologous Stem Cell Transplantation in Waldenstrom's Macroglobulinemia. Blood 2012 120:4533; Disclosures Thomas: Celgene: Research Funding; Bristol Myers Squibb Inc.: Research Funding; Acerta Pharma: Research Funding; Array Pharma: Research Funding; Amgen Inc: Research Funding. Lee:Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees; Adaptive Biotechnologies Corporation: Consultancy; Amgen: Consultancy, Membership on an entity's Board of Directors or advisory committees; Chugai Biopharmaceuticals: Consultancy; Takeda Oncology: Consultancy, Membership on an entity's Board of Directors or advisory committees; Kite Pharma: Consultancy, Membership on an entity's Board of Directors or advisory committees. Orlowski:Takeda: Consultancy; Celgene: Consultancy; Spectrum Pharma: Research Funding; Janssen: Consultancy; Kite Pharma: Consultancy; Sanofi-Aventis: Consultancy; BioTheryX: Research Funding; Amgen: Consultancy, Research Funding; Bristol-Myers Squibb: Consultancy. Champlin:Otsuka: Research Funding; Sanofi: Research Funding. Patel:Poseida Therapeutics, Inc.: Research Funding; Takeda: Research Funding; Abbvie: Research Funding; Celgene: Research Funding.

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Stem Cell Transplantation Can Provide Durable Disease Control in Blastic Plasmacytoid Dendritic Cell Neoplasia (BPDC): A Retrospective Study From the European Group for Blood and Marrow Transplantation (EBMT)

Blood ◽

10.1182/blood.v118.21.3077.3077 ◽

2011 ◽

Vol 118 (21) ◽

pp. 3077-3077

Author(s):

Sascha Dietrich ◽

Damien Roos-Weil ◽

Ariane Boumendil ◽

Emanuelle Polge ◽

Jian-Jian Luan ◽

...

Keyword(s):

Stem Cell ◽

Stem Cell Transplantation ◽

Board Of Directors ◽

Cell Transplantation ◽

Research Funding ◽

Nk Cell ◽

Plasmacytoid Dendritic Cell ◽

Advisory Committees

Abstract Abstract 3077 Blastic plasmacytoid dendritic cell neoplasm (BPDC), formerly known as blastic NK cell lymphoma, is a rare hematopoietic malignancy preferentially involving the skin, bone marrow and lymph nodes. The overall prognosis of BPDC is dismal. Most patients show an initial response to acute leukemia-like chemotherapy, but relapses with subsequent drug resistance occur in virtually all patients resulting in a median overall survival of only 9–13 months. However, anecdotal long-term remissions have been reported in young patients who received early myeloablative allogeneic stem cell transplantation (alloSCT). We therefore performed a retrospective analysis of patients identified in the EBMT registry in order to evaluate the outcome of autologous stem cell transplantation (autoSCT) or alloSCT for BPDC. Eligible were all patients who had been registered with a diagnosis of BPDC or Blastic NK cell lymphoma and had received autologous stem cell transplantation (autoSCT) or alloSCT in 2000–2009. Centres were contacted to provide a written histopathology and immunophenotyping report and information about treatment and follow-up details. Patients who did not have a diagnostic score ≥ 2 as proposed by Garnache-Ottou et al. (BJH 2009) were excluded. RESULTS: Overall, 139 patients could be identified in the database who fulfilled the inclusion criteria (alloSCT 100, autoSCT 39). Of 74 patients for whom the requested additional information could be obtained, central review confirmed the diagnosis of BPDC in 39 patients (34 alloSCT, 5 autoSCT). The 34 patients who had undergone alloSCT had a median age of 41 years (range: 10–70 years), were transplanted from a related (n=11) or unrelated donor (n=23); received peripheral blood stem cells (n=9), bone marrow stem cells (n=19) or cord blood (n=6); and had been treated with a reduced intensity conditioning regimen (RIC, n=9) or myeloablative conditioning (MAC, n=25). Nineteen of 34 patients were transplanted in CR1. After a median follow up time of 28 months (range: 4–77+ months), 11 patients relapsed (median time to relapse: 8 months, range: 2–27 months) of whom 8 died due to disease progression. 9 patients died in the absence of relapse. No relapse occurred later than 27 months after transplant. Median disease free survival (DFS) was 15 months (range: 4–77+ months) and median overall survival (OS) was 22 months (range: 8–77+ months; Figure 1a). However, long-term remissions of up to 77 months after alloSCT could be observed. Patients allografted in CR1 tended to have a superior DFS (p=0.119) and OS (p=0.057; Figure 1b). MAC was associated with a better OS (p=0.001) which was attributable to the significantly higher non-relapse mortality (NRM) rate of patients after RIC (p=0.014), who had been significantly older (age RIC: 56 years, age MAC: 36 years, p=0.0014). The relapse rate was not different in patients after RIC and MAC, respectively. However, there was no survivor after RIC. Median age in the autoSCT group was 47 years (range: 14–62 years). Three of 5 patients were transplanted in CR1 of whom 1 patient relapsed after 8 months, 1 patient experienced treatment related mortality and 1 patient remained in CR for 28 months. The 2 remaining patients had more advanced disease at autoSCT and relapsed 4 and 8 months thereafter. CONCLUSION: AlloSCT is effective in BPDC and might provide curative potential in this otherwise incurable disease, especially when performed in CR1. However, it remains to be shown by prospective studies if the potential benefit of alloSCT in BPDC is largely due to conditioning intensity, or if there is a relevant contribution of graft-versus-leukemia activity. Disclosures: Tilly: Seattle Genetics, Inc.: Membership on an entity's Board of Directors or advisory committees, Research Funding; Celgene: Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau, Travel/accommodations/meeting expenses; Genentech: Membership on an entity's Board of Directors or advisory committees; Roche: Membership on an entity's Board of Directors or advisory committees, Research Funding; Amgen: Research Funding, Speakers Bureau; Pfizer: Speakers Bureau; Janssen Cilag: Speakers Bureau.

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Allogeneic Stem Cell Transplantation in Patients Aged ≥70 Years: Epidemiology, Outcomes, and Risk Factors Based on the German Registry for Stem Cell Transplantation (DRST)

Blood ◽

10.1182/blood-2021-152349 ◽

2021 ◽

Vol 138 (Supplement 1) ◽

pp. 3926-3926

Author(s):

Jan Frederic Weller ◽

Louisa Kaufmann ◽

Claudia Lengerke ◽

Jürgen Finke ◽

Johannes Schetelig ◽

...

Keyword(s):

Stem Cell ◽

Stem Cell Transplantation ◽

Board Of Directors ◽

Cell Transplantation ◽

Research Funding ◽

Underlying Disease ◽

Advisory Committees ◽

Elder Patients ◽

Karnofsky Index

Abstract Introduction. Malignant diseases treated with allogeneic hematopoietic stem cell transplantation (alloHSCT) predominantly occur beyond the 7 th decade of life. Numerical age per se is not regarded an adverse risk factor in alloHSCT. In an aging society, interventions historically deemed high risk are increasingly used in elder patients. Methods. Epidemiology, outcomes and risk factors of patients aged ≥70 years undergoing alloHSCT in Germany 1999-2019 and registered with the DRST/EBMT database were analyzed retrospectively. Baseline patient, disease, and transplant data were collected from MED-A forms. Centers were contacted to provide additional treatment and follow-up information. Results. Between 1999 and 2019, 1648 patients aged ≥70 years (median 72, range 70-79.7; 585 female) were transplanted in 50 German centers. More than 90% of all patients were transplanted 2010-2019. Centers transplanted between 2 and 192 patients, with 14 centers contributing <10 and 4 centers contributing >100 patients each. Most patients suffered acute leukemia (1084, 65.8%) or MDS/MPN (410, 24.9%). Karnofsky index before start of conditioning was 100% (n=230, 14%), 90% (n=651, 39.5%), 80% (n=480, 29.1%), 70% (n=94, 5.7%), <70% (n=55, 3.3%). Myeloablative conditioning was chosen in 25.6%. Total body irradiation was used for 305 patients (18.6%). Conditioning contained antithymocyteglobulin in 49.6%. Donors were unrelated for 85.5%. Median donor age was 37 (18-79) years. Patient CMV IgG was positive in 63.1% and the constellation 'negative donor, positive patient' was present in 19.9%. Median overall survival (OS) and disease free survival (DFS) was 408/ 344 days. With a median follow up of 536 days for surviving patients, Kaplan Meier estimates of OS/ DFS were 52.6%/ 48.5% and 40.9%/ 38.6% at 1 and 2 years. In a competing risk analysis, cumulative incidence of non-relapse-mortality (NRM)/ relapse (RI) was 22.2%/ 29.3% at 365 days. Frequency of acute graft versus host disease (GvHD) II-IV was 25.1% and chronic limited/ extended GvHD 11.7%/ 14.8%. Karnofsky performance score, CMV IgG matching, acute and chronic GvHD and stem cell source showed a prognostic impact on OS, DFS, RI and/ or NRM (Table 1). Underlying disease did not impact outcome, neither did age amongst patients at an age of 70-80 years. To compare with outcome in the decade below (60-69 years), an analysis after matching for underlying disease, CMV relation, and Karnofsky index included 2728 patients (each 1364 patients 60-69 and ≥70 years of age). For each year of life, univariate HR for OS and DFS were 1.01 [95%CI 1.001-1.023, p=0.035] and 1.01 [95%CI 0.99-1.02, p=n.s.], respectively, in this matched-pair analysis. The cumulative HR (OS, DFS) for both age groups was 1.16 [95%CI 1.05-1.28, p<0.01] and 1.13 [95%CI 1.02-1.24, p=0.016] for patients ≥70 years. Conclusion. AlloHSCT is increasingly used to treat elder patients in Germany with a sharp increase during the last decade. Age per se is a modest adverse risk factor for adult patients after alloHSCT with slightly increased mortality in patients 70-80 versus those at 60-69. Further research might concentrate on patient selection and further reduction of procedural toxicity. Figure 1 Figure 1. Disclosures Schetelig: Roche: Honoraria, Other: lecture fees; Novartis: Honoraria, Other: lecture fees; BMS: Honoraria, Other: lecture fees; Abbvie: Honoraria, Other: lecture fees; AstraZeneca: Honoraria, Other: lecture fees; Gilead: Honoraria, Other: lecture fees; Janssen: Honoraria, Other: lecture fees . Einsele: Janssen, Celgene/BMS, Amgen, GSK, Sanofi: Consultancy, Honoraria, Research Funding. Stelljes: Pfizer: Consultancy, Research Funding, Speakers Bureau; Medac: Speakers Bureau; Amgen: Consultancy, Speakers Bureau; Celgene/BMS: Consultancy, Speakers Bureau; Novartis: Consultancy, Speakers Bureau; MSD: Consultancy, Speakers Bureau; Kite/Gilead: Consultancy, Speakers Bureau. Dreger: AbbVie: Consultancy, Speakers Bureau; Bluebird Bio: Consultancy; Novartis: Consultancy, Speakers Bureau; Janssen: Consultancy; AstraZeneca: Consultancy, Speakers Bureau; Gilead Sciences: Consultancy, Speakers Bureau; BMS: Consultancy; Riemser: Consultancy, Research Funding, Speakers Bureau; Roche: Consultancy, Speakers Bureau. Wulf: Takeda: Consultancy, Honoraria; Novartis: Consultancy, Honoraria; Gilead: Consultancy, Honoraria; Clinigen: Consultancy, Honoraria. Scheid: Amgen: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; Takeda: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Janssen: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; BMS: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Abbvie: Honoraria; Roche: Consultancy; Novartis: Honoraria, Membership on an entity's Board of Directors or advisory committees. Bethge: Novartis: Consultancy, Honoraria, Speakers Bureau; Kite-Gilead: Consultancy, Honoraria, Speakers Bureau; Miltenyi Biotec: Consultancy, Honoraria, Research Funding, Speakers Bureau; Janssen: Consultancy, Honoraria, Speakers Bureau; Celgene: Consultancy, Honoraria, Speakers Bureau.

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Immunoparesis Recovery As Predictor Marker of Progression after Autologous Stem Cell Transplantation in Multiple Myeloma

Blood ◽

10.1182/blood.v126.23.4356.4356 ◽

2015 ◽

Vol 126 (23) ◽

pp. 4356-4356 ◽

Cited By ~ 1

Author(s):

Veronica Gonzalez De La Calle ◽

Eduardo Sobejano ◽

Julio Davila ◽

Enrique M Ocio ◽

Noemi Puig ◽

...

Keyword(s):

Multiple Myeloma ◽

Stem Cell ◽

Stem Cell Transplantation ◽

Board Of Directors ◽

Cell Transplantation ◽

Autologous Stem Cell Transplantation ◽

Research Funding ◽

B Lymphocyte ◽

Disease Stage ◽

Advisory Committees

Abstract BACKGROUND High dose therapy followed by autologous stem cell transplantation (ASCT) remains the standard of care, especially in Europe, for young and eligible multiple myeloma patients (usually younger than 65 years old). Immunoparesis is defined as a reduction (below the lower normal limit) in the levels of 1 or 2 uninvolved immunoglobulins (Ig) and it is related to a reversible suppression of B lymphocytes that correlates inversely with disease stage. B Lymphocyte reconstitution begins at 3 months after ASCT, with maximum B lymphocyte levels at 1 year after ASCT. AIMS The goal of the present study was to investigate the role of the immunoparesis recovery after ASCT as predictor of relapse or progression in multiple myeloma (MM). METHODS We reviewed medical records of MM patients who underwent to ASCT at University Hospital of Salamanca between 1992 and 2013. The primary endpoint was time to relapse or progression from ASCT. Ig (Ig G, Ig A e Ig M) were collected at the time of diagnosis, before ASCT, every 3 months during the first year after ASCT, and every year up to 5 years after ASCT among eligible patients until the relapse or disease progression. RESULTS 106 multiple myeloma patients who underwent ASCT were included in the analysis. Conventional chemotherapy was administered as induction regimen in 69 patients (65%), whereas novel agents were used in 37 patients (35%). Most patients had immunoparesis at diagnosis (91%) and at the moment of ASCT as well (94%). After a median follow-up of 62 months, median time to progression or relapse (TTP) from ASCT was 31 months (95 % CI: 24.1 - 37.1 months). MM patients with immunoparesis 1 year after ASCT had a significantly shorter median TTP as compared with patients without immunoparesis (33.5 months vs 94.2 months; HR: 2.14, 95% CI: 1.13-4.05; p=0.019). In the group of patients with reduction of both Igs, median TTP was slightly inferior than in the group with reduction of only one of them(33.5 vs 36.4 months, p=0.03). Presence of ISS 3, high-risk cytogenetics at diagnosis, less than partial response achieved before and three months after ASCT were also identified as predictors of progression. Multivariate analysis selected immunoparesis 1 year after ASCT as an independent variable for relapse or progression (HR: 5.97, 95% CI: 1.63-21.88; P=0.007). CONCLUSIONS The lack of immunoparesis recovery at 1 year after ASCT in MM patients is associated with significantly higher risk of relapse or progression and this group of patients could potentially benefit of continuous treatment after ASCT to enhance the immune recovery. Disclosures Ocio: Array BioPharma: Consultancy, Research Funding; Celgene: Consultancy, Honoraria; Amgen/Onyx: Consultancy, Honoraria, Research Funding; Bristol Myers Squibb: Consultancy; Mundipharma: Consultancy, Research Funding; Novartis: Consultancy, Research Funding; MSD: Research Funding; Pharmamar: Consultancy, Research Funding; Janssen: Honoraria. Puig:The Binding Site: Consultancy; Janssen: Consultancy. Mateos:Novartis: Consultancy, Membership on an entity's Board of Directors or advisory committees; Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees; Janssen: Consultancy, Membership on an entity's Board of Directors or advisory committees; Onyx: Consultancy; BMS: Consultancy; Takeda: Consultancy, Membership on an entity's Board of Directors or advisory committees; Amgen: Consultancy, Membership on an entity's Board of Directors or advisory committees.

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Safety and Efficacy of Autologous Stem Cell Transplantation in Dialysis-Dependent Myeloma Patients - the Diadem Study from the Chronic Malignancies Working Party of the EBMT

Blood ◽

10.1182/blood-2019-127238 ◽

2019 ◽

Vol 134 (Supplement_1) ◽

pp. 4574-4574

Author(s):

Anna Waszczuk-Gajda ◽

Junfeng Wang ◽

Liesbeth C. de Wreede ◽

Tiarlan Sirait ◽

Zubeyde Nur Ozkurt ◽

...

Keyword(s):

Quality Of Life ◽

Stem Cell ◽

Stem Cell Transplantation ◽

Board Of Directors ◽

Cell Transplantation ◽

Autologous Stem Cell Transplantation ◽

Research Funding ◽

Advisory Committees ◽

Safety And Efficacy

Introduction Multiple myeloma (MM) patients with renal impairment (RI), especially dialysis-dependent (DD) RI, have poorer outcomes than MM patients with normal renal function. Autologous stem cell transplantation (ASCT) is a treatment option, but there is concern at a perceived higher risk of complications which may be limiting consideration of the use of ASCT in this population. The evidence is inconsistent among studies and interpretation is complicated by heterogeneous datasets, some dating to before the availability of novel agents. Finally, the reversibility of RI following ASCT is an important prognostic factor for both survival and quality of life. Aim To evaluate the safety and efficacy of ASCT in MM patients with DD RI transplanted in EBMT centres between 1997 and 2017. Methods Baseline characteristics at diagnosis, patient treatment regimens and clinical outcomes were collected using standardised report forms. OS was defined as the period between the date of ASCT and the date of death or the date of last observation. PFS was defined as the period between the date of ASCT and date of progression/relapse or death of any causes or the date of the last observation. Cox proportional hazard regression analysis was applied to assess risk factors for progression and death. Survival curves were plotted by the Kaplan-Meier method and compared using log-rank test. P<0.05 was judged as statistically significant. Results A total of 109,959 adult MM patients are registered in the EBMT database as having undergone ASCT between 1997 and 2017. We further analysed 118 DD MM patients who had a first ASCT during this period. The median (range) age was 57 (27-71) years. Seventy (59%) patients were males. Forty nine patients (49/94 patients, 52%) had Karnofsky score ≥90. One hundred and ten patients were treated with hemodialysis and eight with peritoneal dialysis. A total of 68 (58%) patients had Light Chain MM, 43 kappa and 25 Lambda. In first-line induction therapy, 47/76 (62%) patients received bortezomib-based regimens. Forty-four (37%) patients achieved at least VGPR pre-ASCT. The median time from diagnosis to ASCT was 0.7 years (0.3-4.9). Melphalan doses were as follows: 140 mg/m2 (n=55, 67%), 70-100 mg/m2 (n=15, 18%), and >140 mg/m2 (n=12, 15%). The times to Neutrophil (>0.5) and Platelet (>20) engraftment were 12 (10-37) and 14 (4-128) days, respectively. The 30-day and 100-day transplant-related mortality (TRM) rates were 0.0% and 0.9%, respectively. ASCT was associated with a significant deepening of response (at least VGPR pre- vs post-ASCT: 36/93 (39%) vs 48/93 (52%), p < 0.001). The median PFS was 37 months (95% CI: 24-43) and 5-year PFS was 31% (95% CI: 20-41). The median OS was 102 months (95% CI: 67-129). Five-year OS post-ASCT was 62% (52-72) and 10-year OS 36% (17-55). Thirty-one (26%) DD MM patients achieved dialysis independence. There were no differences in PFS or OS when comparing the 1997-2007 and 2008-2017 cohorts: 5-year PFS - 28% (6-49) vs 31% (19-43) (p=0.7) and 5-year OS - 61% (38-84) vs 63% (51-74) (p=0.9), respectively. On univariate analysis of factors affecting PFS, achievement of an Overall Response Rate (ORR) (CR+VGPR+PR vs. Other) pre-ASCT was associated with a lower risk (HR 0.467, p=0.032) and older age (>55 years) with a higher risk (HR 1.786, p=0.035) of post-ASCT progression. Age higher than 55 (HR 2.033, 95%CI: 0.992 - 4.166, p=0.053) increased and achievement of at least VGPR pre-transplant (HR 0.494, 95%CI: 0.224 - 1.091, p=0.081, on the verge of statistical significance) decreased the risk of death. Conclusion To the best of our knowledge, the DIADEM study is the largest analysis of ASCT in DD MM pts to date. This cohort of 118 unselected patients had an OS comparable to patients without RI. This may reflect patient selection based on younger age, Karnofsky scores and pre-ASCT response. The low TRM and excellent outcomes support consideration of the use of ASCT in pts with DD RI. Notably, more than a quarter of patients became dialysis independent, an outcome likely to confer an improved Quality-of-Life.. These results can also inform the debate around the role of renal transplantation in younger DD MM patients who do not achieve dialysis independence. Disclosures Snowden: IDMC: Honoraria; Kiadis: Membership on an entity's Board of Directors or advisory committees; Janssen: Honoraria; Mallinckrodt: Honoraria; Jazz: Honoraria; Gilead: Honoraria. Dreger:MSD: Membership on an entity's Board of Directors or advisory committees, Other: Sponsoring of Symposia; AbbVie, AstraZeneca, Gilead, Janssen, Novartis, Riemser, Roche: Consultancy; AbbVie, Gilead, Novartis, Riemser, Roche: Speakers Bureau; Neovii, Riemser: Research Funding. Illés:Takeda, Seattle: Research Funding; Janssen, Celgene, Novartis, Takeda, Roche, Pfizer: Honoraria, Membership on an entity's Board of Directors or advisory committees. Basak:Teva: Honoraria; Celgene: Honoraria. Gyan:Pfizer: Honoraria. Hayden:Alnylam: Honoraria; Amgen: Honoraria. Beksac:Amgen: Consultancy; Celgene: Consultancy; Janssen&Janssen: Consultancy; Takeda: Consultancy. Schönland:Janssen: Membership on an entity's Board of Directors or advisory committees, Research Funding; Medac: Other: Travel Grant; Takeda: Membership on an entity's Board of Directors or advisory committees, Research Funding; Prothena: Membership on an entity's Board of Directors or advisory committees, Research Funding.

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Post-Transplant Cyclophosphamide in Acute Leukemia Patients Receiving More Than 5/10 HLA-Mismatched Allogeneic Stem Cell Transplantation: A Study on Behalf of the ALWP of the EBMT

Blood ◽

10.1182/blood-2021-151087 ◽

2021 ◽

Vol 138 (Supplement 1) ◽

pp. 3890-3890

Author(s):

Michele Wieczorek ◽

Myriam Labopin ◽

Luca Castagna ◽

Eolia Brissot ◽

Gerard Socié ◽

...

Keyword(s):

Stem Cell ◽

Stem Cell Transplantation ◽

Acute Leukemia ◽

Board Of Directors ◽

Cell Transplantation ◽

Median Time ◽

Cumulative Incidence ◽

Research Funding ◽

Advisory Committees ◽

Free Survival

Abstract Background Post-transplant cyclophosphamide (PTCy) is a powerful strategy to prevent occurrence of graft-versus-host disease (GvHD) following allogeneic hematopoietic stem cell transplantation (HSCT). Initially developed in the setting of haploidentical HSCT, PTCy has been increasingly used for fully HLA-matched transplants with favorable results. The purpose of this retrospective multi-center study is to evaluate PTCy-based GvHD prevention for patients with acute leukemia receiving a traditionally prohibitive highly mismatched HSCT and to describe their outcome. Methods This is a registry-based study employing the data set of the Acute Leukemia Working Party (ALWP) of the European Society of Blood and Marrow Transplantation (EBMT). We retrospectively assessed the outcome of adult patients with acute myeloid or lymphoblastic leukemia (AML/ALL), transplanted between 2010 and 2020 with grafts from HLA-mismatched donors with more than 5/10 mismatches using PTCy-based GvHD prophylaxis. Results The study cohort consisted of 59 patients, with a median time of follow up of 20 (95% CI, 14-39) months. The median age was 47 (range, 18-69) years. Forty-four patients had a diagnosis of AML, 14 of ALL and one case of mixed phenotype acute leukemia. At time of transplant, 39 (66%) were in first or second complete remission, 4 (7%) were in later remission and 16 (27%) had active, relapsed or refractory, disease. Conditioning regimens were myeloablative for 54% of cases and peripheral blood was the preferred source of stem cells (64%). All donors were related. Most patients (85%) received a 4/10 HLA-matched transplant, the most commonly mismatched loci were C and DQB1, often with a double mismatch involving the same locus. Two cases of fully mismatched donors were also recorded. PTCy was always associated with other immunosuppressive treatments, especially with the standard combination of calcineurin inhibitors and mycophenolate mofetil. In only 8 cases in vivo T-cell depletion was realized with anti-thymocyte globulin. A large proportion of patients (86%) attained engraftment with a median time of 19 (range, 11-37) days. Only 8 patients did not reach engraftment and all of them died of infection or disease relapse in the first one-hundred days (range, 6-99) after HSCT. Thirty-three patients (58%) did not present any sign of acute GvHD (aGvHD). Cumulative incidence of grade II-IV and grade III-IV aGvHD at day 180 were 30.3% and 14.3%, respectively. At 2 years, the cumulative incidence of chronic GvHD (cGvHD) was 21%, and 7% for extensive cGvHD. Twenty-four patients died during the study period, mostly because of leukemia progression (n=13, 54%), infectious complications (n=6, 25%) and interstitial pneumonia (n=2, 8%). Other causes of death were hemorrhage, GvHD, and another non HSCT-related that accounted for one case (4%) each. At 2 years, the overall survival (OS), leukemia-free survival (LFS), and a GVHD and relapse free survival (GRFS) were 56%, 54% and 47% respectively. Rates of relapse incidence and non-relapse mortality were 28% and 19%, respectively. Conclusion According to this preliminary data overview, transplantation in a highly mismatched framework is possible, without unfavorable OS, LFS and GVHD rates. Despite the important limitation of the retrospective non-controlled nature of this analysis, these findings suggest that PTCy-based strategies could help overcome the barrier of HLA-matching and configure a new setting of transplantation, encouraging more in-depth investigations. Figure 1 Figure 1. Disclosures Labopin: Jazz Pharmaceuticals: Honoraria. Angelucci: Novartis: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Celgene BSM: Honoraria, Other: DMC; Blue Bird Bio: Honoraria, Membership on an entity's Board of Directors or advisory committees; Menarini-Stemline: Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: steering commitee, Speakers Bureau; Vertex Pharmaceuticals: Honoraria, Other: DMC; Crispr therapeutics: Honoraria, Other: DMC; Glaxo: Honoraria, Membership on an entity's Board of Directors or advisory committees; Gilead: Honoraria, Membership on an entity's Board of Directors or advisory committees. Yakoub-Agha: Jazz Pharmaceuticals: Honoraria. Mohty: Takeda: Honoraria; Jazz: Honoraria, Research Funding; Gilead: Honoraria; Adaptive Biotechnologies: Honoraria; Sanofi: Honoraria, Research Funding; Pfizer: Honoraria; Novartis: Honoraria; Janssen: Honoraria, Research Funding; Celgene: Honoraria, Research Funding; Bristol Myers Squibb: Honoraria; Amgen: Honoraria; Astellas: Honoraria.

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PD-1 Blockade with Pembrolizumab for Classical Hodgkin Lymphoma after Autologous Stem Cell Transplantation

Blood ◽

10.1182/blood-2018-99-113685 ◽

2018 ◽

Vol 132 (Supplement 1) ◽

pp. 1650-1650 ◽

Cited By ~ 2

Author(s):

Philippe Armand ◽

Yi-Bin Chen ◽

Robert A. Redd ◽

Robin M. Joyce ◽

Jad Bsat ◽

...

Keyword(s):

Stem Cell ◽

High Risk ◽

Stem Cell Transplantation ◽

Board Of Directors ◽

Hodgkin Lymphoma ◽

Autologous Stem Cell Transplantation ◽

Research Funding ◽

Classical Hodgkin Lymphoma ◽

Advisory Committees

Abstract Background: Classical Hodgkin lymphoma (cHL) displays near-universal genetic deregulation of PD-1 ligand expression, and relapsed/refractory (R/R) cHL is uniquely sensitive to PD-1 blockade. However, such treatment for patients (pts) who relapse after or are ineligible for autologous stem cell transplantation (ASCT) appears to be rarely, if ever, curative. Deploying PD-1 blockade early after ASCT could leverage the remodeling immune landscape and minimal residual disease state to increase the cure rate of ASCT. We therefore conducted a phase 2 multi-center single-arm study of the anti-PD-1 monoclonal antibody pembrolizumab (pembro) in pts with chemosensitive R/R cHL after ASCT. Another arm of this study enrolled pts with R/R DLBCL and will be presented separately. Methods: Adult pts with R/R cHL who had received 2-3 lines of prior therapy and ASCT and who were chemosensitive prior to ASCT were enrolled on this study. In addition to meeting standard eligibility criteria for pembro treatment, pts had to have recovered from ASCT toxicities and begin study treatment within 60 days of stem cell infusion (goal within 21 days). They received pembro 200mg IV every 3 weeks for 8 cycles. PET-CT scans were obtained at post-ASCT baseline, after 3 and 7 cycles, then at 12 and 18 months post-ASCT. The primary endpoint was the progression-free survival rate (PFS) at 18 months after ASCT, assessed using International Harmonization Project 2007 criteria. Results: 31 pts were enrolled and 1 withdrew consent before starting treatment. Among the 30 eligible patients, median age was 33 (20-69). 26 pts (87%) were high-risk by virtue of primary refractory disease (57%), relapse within 12 months (17%), extranodal disease at relapse (27%) or absence of metabolic CR at ASCT (10%). At study baseline post-ASCT, 97% were in CR. 24 pts (80%) completed 8 cycles of pembro per protocol. 6 pts (20%) stopped pembro early for pt choice (n=2, including 1 pt with gr2 pneumonitis) or toxicity (n=4, including 2 pts with gr3 hepatitis, 1 with g3 pneumonitis, 1 with g2 diplopia). 9 pts (30%) experienced a total of 28 gr3 or higher adverse events (AEs). The most common gr4 AE was neutropenia (10%). 3 patients (10%) experienced 7 gr3-4 AEs at least probably related to pembro (gr3 diarrhea and gr3 eosinophilic colitis in 1 pt, gr3 leukopenia and gr4 neutropenia in 1 pt, gr3 leukopenia and gr3 ALT and AST elevation in 1 pt). 11 pts (37%) experienced at least one immune-related AE of gr2 or higher severity: pneumonitis (n=2 gr2, n=1 gr3), thyroid dysfunction (n=1 gr2), transaminitis (n=2 gr3), colitis/diarrhea (n=1 gr2, n=2 gr3), rash (n=2 gr2), pulmonary hemorrhage (n=1 gr3), arthritis (n=1 gr2), and increased creatinine (n=1 gr2). There was no treatment-related death. Among the 30 eligible pts, 2 were lost to follow-up after their 12m assessments (both in CR). 27 pts (90%) were evaluable for the primary endpoint (the last pt is still in follow-up and results will be updated for the meeting). 6 patients (20%) relapsed at a median of 8 months (3-18) from ASCT, and all other evaluable patients were in CR at the 18m timepoint. The KM estimate of 18m PFS for high-risk patients was 78% (95%CI 54-91). The 18m overall survival was 100%. Tumor biopsies from a pt who progressed on study demonstrated an increase in the %age of PD1+ T cells at progression, as well as an increase in the %age of PD-L1+ macrophages and PD-L1+ Reed-Sternberg cells (Figure). Other correlative studies including immune reconstitution and MRD analyses are ongoing. Conclusions: Pembrolizumab administered after ASCT in patients with R/R cHL has a safety profile that appears similar to its use in the R/R setting, although possibly with a higher rate of neutropenia. The 18-month progression-free rate in this high-risk cohort compares favorably with previous published studies, and supports the hypothesis that PD-1 blockade in this setting may increase the efficacy of ASCT. This should be tested in a randomized trial. Figure. Figure. Disclosures Armand: Pfizer: Consultancy; Affimed: Consultancy, Research Funding; Otsuka: Research Funding; Merck: Consultancy, Research Funding; Infinity: Consultancy; Adaptive: Research Funding; Bristol-Myers Squibb: Consultancy, Research Funding; Roche: Research Funding; Tensha: Research Funding. Chen:Incyte: Consultancy, Membership on an entity's Board of Directors or advisory committees; Takeda Pharmaceuticals: Consultancy; Magenta Therapeutics: Consultancy; REGiMMUNE: Consultancy. LaCasce:Humanigen: Consultancy, Honoraria; Research to Practice: Speakers Bureau; Bristol-Myers Squibb: Other: Data safety and monitoring board; Seattle Genetics: Consultancy, Honoraria. Jacobson:Pfizer: Consultancy; Humanigen: Consultancy; Precision Bioscience: Consultancy; Novartis: Consultancy; Kite: Consultancy; Bayer: Consultancy. Jacobsen:Merck: Consultancy; Seattle Genetics: Consultancy. Rodig:Bristol-Meyers-Squibb: Research Funding; KITE Pharma: Research Funding; Affimed Inc.: Research Funding; Merck & Co., Inc.: Research Funding. Shipp:AstraZeneca: Honoraria; Bristol-Myers Squibb: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Bayer: Research Funding; Merck: Research Funding. Herrera:BMS: Consultancy, Research Funding; Merck: Consultancy, Research Funding; Genentech: Consultancy, Research Funding; Pharmacyclics: Consultancy, Research Funding; KiTE Pharma: Consultancy, Research Funding; Seattle Genetics: Research Funding; Immune Design: Research Funding; Astra Zeneca: Research Funding.

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RVD Induction Followed by Consolidation with ASCT in Patients with Newly Diagnosed Multiple Myeloma,

Blood ◽

10.1182/blood.v118.21.4134.4134 ◽

2011 ◽

Vol 118 (21) ◽

pp. 4134-4134

Author(s):

Marlise R Luskin ◽

Federico Campigotto ◽

Paul G. Richardson ◽

John Koreth ◽

Irene M. Ghobrial ◽

...

Keyword(s):

Stem Cell ◽

Board Of Directors ◽

Median Time ◽

Research Funding ◽

M Protein ◽

Newly Diagnosed ◽

Advisory Committees ◽

Disease Response ◽

Stem Cell Collection

Abstract Abstract 4134 Introduction: Lenalidomide, bortezomib, and dexamethasone (RVD) is an active and well tolerated induction regimen in newly diagnosed multiple myeloma (MM). Clinical trials show this regimen to have an overall response rate (ORR) of 95–100%. Appropriately selected patients who receive RVD induction may proceed to consolidation with high-dose therapy and autologous stem cell transplantation (ASCT). In this retrospective study we characterize the experience of patients at our center who received RVD induction followed by ASCT. Methods: Demographic and outcome data were collected retrospectively among patients with MM who underwent ASCT between January 1, 2005 and December 31, 2010 (n=482) and received at least 2 cycles of RVD induction (n=82). Data collected include demographics, disease sub-type and International Staging System (ISS) stage, cytogenetics, treatment summary, treatment-related peripheral neuropathy and venous thromboembolism (VTE), CD34+ stem cell yield, time to hematopoietic recovery post-ASCT, disease response to induction and ASCT, and time to progression after ASCT. Response was based on M-protein or serum free light chain (FLC) response and bone marrow findings. Results: The cohort was 63% male with median age at induction of 57.5 years (range 24 to 71). By ISS stage, 51, 32, 12, and 5% had stage I, II, III, and unknown disease, respectively. Based on cytogenetic findings, 56, 33, and 12% had standard, high, and unknown-risk disease, respectively. IgG was the most common subtype (48% IgG, 24% IgA, and 26% light chain disease). Patients received a median of 5 cycles (range 2 to 16) of RVD induction. 50% of patients reported any-grade peripheral neuropathy. Two patients developed VTE. In 8 (10%) patients, bortezomib or lenalidomide was discontinued due to drug toxicity. In 5 (6%) patients, omission of lenalidomide in the final cycle prior to stem cell collection was planned. Partial response (PR) or better M-protein (or FLC) response was observed in 96% (95% CI: [88%, 99%]) with 44% complete response (CR), 26% very good partial response (VGPR), 26% PR, 4% stable disease (SD) pre-ASCT. 50% of patients who achieved a CR by M-protein response had no evidence of clonal plasma cells in their bone marrow. Sixty-three (77%) patients proceeded directly to ASCT after RVD induction with median time to ASCT 187 days (range 119 to 510). Nineteen (23%) patients received further therapy prior to ASCT: 8 patients to either deepen treatment response prior to ASCT (n=6) or for progressive disease (PD) after a transient response to RVD (n=2), while 11 were either observed (n=7) or received maintenance therapy (n=4) after induction with further therapy for PD or for cytoreduction prior to ASCT. Among patients who received additional therapy, 16% improved their response with median time to ASCT 394 days (range 155 to 975). Median CD34+ stem cell collection was 10.0 × 10^6 (range 2.0 × 10^6 to 75.4 × 10^6). More than 4 × 10^6 stem cells were collected in 95% of patients. Median time to neutrophil and platelet engraftment was 11 (range 6 to 19) and 19 (range 10 to 92) days, respectively. At 100 days post-ASCT, 33% showed improvement in disease response, 59% showed the same response, no one had PD, and 7% had unknown response due to no assessment ≤ 150 days post-ASCT. Lenalidomide maintenance was given to 71% of patients after day 100 post-ASCT. At median follow-up of 12.1 months, 12 subjects progressed and one patient died of angioimmunoblastic lymphoma on day 289 post-ASCT without myeloma progression (3 subjects had no follow-up data). No other second new primary malignancies were reported. The Kaplan-Meier estimate of progression-free survival (PFS) at 12 months post-ASCT is 85% (95% CI:[72;92]). Similar results were observed among the 63 patients who proceeded directly to ASCT. Conclusion: RVD is a well tolerated, highly active induction regimen for patients with newly diagnosed MM. The ORR of 96% and CR rate of 44% to RVD induction prior to ASCT in our study are consistent with previous results. Stem cell collection following RVD induction was successful in all patients and post-ASCT engraftment was rapid. ASCT improved disease response and these responses appear durable at median 12 month follow-up. Data from on-going phase III trials will provide insight in a prospective manner on outcomes after RVD induction followed by ASCT (either early or late) for MM patients. Disclosures: Richardson: Celgene: Membership on an entity's Board of Directors or advisory committees; Johnson & Johnson: Membership on an entity's Board of Directors or advisory committees; Novartis: Membership on an entity's Board of Directors or advisory committees; Bristol Myers Squibb: Membership on an entity's Board of Directors or advisory committees; Millennium: Membership on an entity's Board of Directors or advisory committees. Koreth:Millennium Pharmaceuticals Inc: Membership on an entity's Board of Directors or advisory committees, Research Funding. Ghobrial:Bristol-Myers Squibb: Research Funding; Millennium: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Celgene: Consultancy; Novartis: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Noxxon: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding. Munshi:Novartis: Consultancy, Membership on an entity's Board of Directors or advisory committees; Millennium: Consultancy, Membership on an entity's Board of Directors or advisory committees; Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees; Onyx: Membership on an entity's Board of Directors or advisory committees. Anderson:Onyx: Consultancy; Bristol-Myers Squibb: Consultancy; Celgene: Consultancy; Millennium: Consultancy; Novartis: Consultancy; Merck: Consultancy; Acetylon: Founder.

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Evaluating the PET Parameters SUVmax and TMTV in the Setting of Autologous Stem Cell Transplantation for DLBCL

Blood ◽

10.1182/blood-2020-135920 ◽

2020 ◽

Vol 136 (Supplement 1) ◽

pp. 38-38

Author(s):

Rachel Brown ◽

Alessandro Lambertini ◽

Michael S Hofman ◽

Mathias Bressel ◽

Michael P Macmanus ◽

...

Keyword(s):

Stem Cell ◽

Stem Cell Transplantation ◽

Board Of Directors ◽

Cell Transplantation ◽

Autologous Stem Cell Transplantation ◽

Research Funding ◽

Prognostic Significance ◽

B Cell Lymphoma ◽

Advisory Committees ◽

Relative Change

Introduction Where tolerated,high dose chemotherapy supported by autologous stem cell transplantation (ASCT) is the standard of care for patients with relapsed or refractory diffuse large B cell lymphoma (DLBCL). Disease recurrence post-ASCT however is common and carries an extremely poor prognosis, highlighting the need for improved pre-transplant prognostic stratification. This study investigates the prognostic utility of the PET parameters total metabolic tumour volume (TMTV) and standardised uptake value (SUV)max in the peri-transplant setting. Methods 125 patients underwent ASCT for relapsed or refractory DLBCL between 1/1/2002 and 31/1/2017 at the Peter MacCallum Cancer Centre. All patients received multi-agent salvage immuno-chemotherapy before proceeding to ASCT. 58 patients were treated with peri-transplant radiotherapy, with indications including incomplete response post-salvage therapy, and bulky and/or localised disease. 122 patients had their treatment response assessed with PET. TMTV and SUVmax were measured at time of primary disease relapse/progression prior to salvage immuno-chemotherapy (pre-salvage PET) and post-salvage immuno-chemotherapy prior to ASCT (pre-ASCT PET). 93 patients had pre-salvage and pre-ASCT PETs available for TMTV and SUVmax measurement. Results Median follow up was 5.6 years. The 5-year progression free survival (PFS) and overall survival (OS) were 52% (95% CI: 42-60) and 65% (95% CI: 56-73). In patients demonstrating complete metabolic response (CMR) and non-CMR on pre-ASCT PET the 5-year PFS was 58% (95% CI: 44-70) and 44% (95% CI: 29-57) respectively. The 5-year OS with CMR and non-CMR on pre-ASCT PET was 73% (95% CI: 59-83) and 54% (95% CI: 39-67). TMTV and SUVmax were investigated as potential prognostic factors in the peri-transplant setting. In this patient group, pre-salvage TMTV and SUVmax were not found to be of prognostic significance. Pre-salvage TMTV and SUVmax PFS hazard ratios (HR)s were 1.06 per 100ml (95% CI:0.96-1.17; p = 0.27) and 1.00 (95% CI: 0.98-1.03; p = 0.78) respectively, and OS HRs were 1.10 per 100ml (95% CI: 0.86-1.18; p = 0.07) and 1.02 (95% CI: 0.96-1.04 p = 0.24). In contrast, pre-ASCT TMTV was a significant negative prognostic factor for both PFS (HR = 1.22 per 100ml; 95%CI: 1.10-1.37; p < 0.001) and OS (HR = 1.96 per 100ml; 95% CI: 1.38-2.79; p < 0.001). Pre-ASCT SUVmax similarly demonstrated a negative association with PFS (HR = 1.07; 95% CI: 1.04-1.10; p < 0.001) and OS (HR of 1.08 ; 95% CI: 1.04-1.11; p < 0.001). In addition to the TMTV and SUVmax absolute values, the relative change from pre-salvage to pre-ASCT PET was investigated for prognostic value. No significant association with PFS or OS was demonstrated for the relative change of either parameter. The relative change in TMTV had a HRs of 1.21 (95% CI: 0.54- 2.72; p = 0.65) and 1.15 (95% CI: 0.45-2.93; p = 0.77) for PFS and OS respectively, and relative change in SUVmax had a HRs of 1.30 (95% CI: 0.68- 2.50; p = 0.43) and 1.20 (CI 95% 0.57-2.54; p = 0.64) for PFS and OS. Conclusion As prognostic tools, pre-ASCT TMTV and SUVmax were both predictors for PFS and OS. In contrast, pre-salvage TMTV and SUVmax did not demonstrate an association with PFS or OS, reinforcing the prognostic significance of the pre-ASCT PET scan. The relative change in SUVmax and TMTV were similarly not associated with PFS and OS. These findings indicate that in the context of TMTV and SUVmax measurement, residual disease on pre-ASCT PET may be of greater predictive value than degree of response to salvage immuno-chemotherapy. While TMTV and SUVmax have primarily been studied in the context of first-line therapy for DLBCL, these results suggest a promising prognostic role for these PET parameters in the peri-transplant setting. Disclosures Seymour: AbbVie: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau; Celgene: Consultancy, Honoraria, Research Funding; AstraZeneca: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; Janssen: Consultancy, Honoraria, Research Funding; F. Hoffmann-La Roche: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau; Gilead: Consultancy; Nurix: Honoraria; Mei Pharma: Consultancy, Honoraria; Morphosys: Consultancy, Honoraria. Dickinson:Novartis: Consultancy, Honoraria, Research Funding, Speakers Bureau; Merck Sharp & Dohme: Consultancy; Gilead: Consultancy, Honoraria, Research Funding, Speakers Bureau; Janssen: Consultancy, Honoraria, Speakers Bureau; Roche: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau.

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A Phase I Trial of Venetoclax in Combination with BEAM Conditioning Chemotherapy (V-BEAM) with Autologous Stem Cell Transplantation in Non-Hodgkin Lymphoma

Blood ◽

10.1182/blood-2019-124602 ◽

2019 ◽

Vol 134 (Supplement_1) ◽

pp. 5705-5705

Author(s):

Allison M. Winter ◽

Kirsten M Boughan ◽

Jack Khouri ◽

Paolo Caimi ◽

Faiz Anwer ◽

...

Keyword(s):

Stem Cell ◽

Stem Cell Transplantation ◽

Board Of Directors ◽

Cell Transplantation ◽

Autologous Stem Cell Transplantation ◽

Dose Level ◽

Research Funding ◽

Cell Lymphoma ◽

Advisory Committees ◽

Level 2

Background: High-dose chemotherapy (HDCT) followed by autologous stem cell transplantation (ASCT) is a standard treatment both as consolidation after induction chemotherapy and as second-line therapy depending on the histologic subtype of NHL. BEAM (BCNU, etoposide, cytarabine, and melphalan) is a commonly used conditioning regimen for NHL but often fails to produce durable remission, likely due to inherent chemoresistance. Many B-cell NHL subtypes including diffuse large B-cell lymphoma and double-hit lymphoma are resistant to chemotherapy-induced apoptosis by overexpression of Bcl-2. Venetoclax is an orally administered selective Bcl-2 inhibitor with significant single agent activity in CLL and mantle cell lymphoma. In addition, the efficacy of venetoclax is potentiated by combination with rituximab [Seymour 2018, Kater 2018] and multiple lines of preclinical data show synergistic efficacy with a range of both novel and conventional antineoplastic agents [Johnson-Farley 2015, Li 2015]. Study Design and Methods: This is a single arm, open-label, dose-escalation phase I trial to evaluate the safety of venetoclax in combination with BEAM (V-BEAM) conditioning chemotherapy. Key inclusion criteria include patients with pathologically confirmed NHL, regardless of specific histology, who have received one prior systemic therapy and are eligible for and proceeding with HDCT followed by ASCT. The trial employs a standard 3+3 cohort-based dose escalation design of venetoclax (800 mg daily days -7 through -6 on dose level 1, 800 mg daily days -7 through -5 on dose level 2, 800 mg daily days -7 through -4 on dose level 3, 800 mg daily days -7 through -3 on dose level 4, and 800 mg daily days -7 through -2 on dose level 5) with standard doses of BEAM followed by ASCT. The primary objectives are to assess safety, describe dose-limiting toxicities, engraftment of stem cells and to identify the recommended phase II dose. Secondary objectives include evaluation of progression-free survival (PFS) and overall survival (OS) compared to historical controls treated with BEAM as part of ASCT. Neutrophil and platelet engraftment will be estimated with cumulative incidence and compared to controls with Gray test. OS and PFS will be estimated with Kaplan-Meier and compared to controls with the log-rank test. As of 8/1/2019, the first dosing cohort of 3 patients have been enrolled and successfully completed study treatment. There are 3 patients in screening to be enrolled in dose level 2. Additional accrual will be presented at the time of the meeting. Clinical trial information: NCT03713580. Disclosures Anwer: Seattle Genetics: Membership on an entity's Board of Directors or advisory committees; In-Cyte: Speakers Bureau. Gerds:Celgene Corporation: Consultancy, Research Funding; Sierra Oncology: Research Funding; Pfizer: Consultancy; Incyte: Consultancy, Research Funding; CTI Biopharma: Consultancy, Research Funding; Roche: Research Funding; Imago Biosciences: Research Funding. Majhail:Nkarta: Consultancy; Atara Bio: Consultancy; Mallinckrodt: Honoraria; Incyte: Consultancy; Anthem, Inc.: Consultancy. Hill:TG therapeutics: Research Funding; Abbvie: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Genentech: Consultancy, Research Funding; Kite: Consultancy, Honoraria; Gilead: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; Pharmacyclics: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; AstraZeneca: Consultancy, Honoraria; Celegene: Consultancy, Honoraria, Research Funding; Seattle Genetics: Consultancy, Honoraria; Takeda: Research Funding; Amgen: Research Funding. OffLabel Disclosure: Our trial in progress is investigating the use of venetoclax in combination with BEAM conditioning chemotherapy prior to autologous stem cell transplantation. Venetoclax is not currently approved in this setting.

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