Amplicon Based Panel Targeted Resequencing Identified ZRSR2 As a Potential New Favorable Marker in Pediatric AML

Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 2905-2905
Author(s):  
Christiane Walter ◽  
Zhenyu Xu ◽  
Martin Zimmermann ◽  
Dirk Reinhardt ◽  
Nils Von Neuhoff
Keyword(s):  
Board Of Directors ◽  
Cumulative Incidence ◽  
Pediatric Patients ◽  
Patient Characteristics ◽  
Event Free Survival ◽  
Advisory Committees ◽  
Free Survival ◽  
Targeted Resequencing ◽  
Prognostic Relevance ◽  
Pediatric Aml

Abstract Introduction: Acute myeloid leukemia (AML) is one of the most threatening malignancies in children and adolescents. The accumulation of mutations in leukemia stem cells (LSC) is believed to lead to the development of leukemia. Cyto- and molecular genetics already identified several aberrations which are relevant in leukemogenesis, prognosis and therapy. Nevertheless, the molecular landscape and clonal evolution of AML and its clinical relevance, especially for pediatric patients, is not yet well described. Next Generation Sequencing (NGS) as an emerging sequencing technology provides the possibility to generate sequence data of high quality and detect genetic aberrations in a minimum of time. The aim of this study was to apply amplicon based panel targeted resequencing by using the TruSight Myeloid Panel (Illumina) to identify variants in 54 genes. Methods Patients: In total 150 samples derived from pediatric patients diagnosed with AML at the time of initial diagnosis or relapse were analysed regarding their mutational profile. All patients treated according to the AML-BFM therapy protocols (n=103) were chosen to determine the potential impact in prognosis. Sequencing and analysis of variants Sequencing with the TruSight Myeloid panel (Illumina) was performed on a MiseqDX. The sequencing panel is designed to identify somatic mutations associated with myeloid malignancies in 54 genes. To define variants, we excluded intronic, synonymous and variants with an allele frequency below 5% and a read depth below 50 reads. False positive variants were excluded by including healthy donors and reference samples. Variants were detected and analysed using Variant studio (Illumina) and Sophia DDM (Sophia Genetics). Almost all variants were detectable in both software, although great insertions and deletions were detectable only by Sophia DDM. Results In the cohort of 150 patients, we detected 408 mutations in the 54 genes included in the panel (fig. 1). 26% of the patients showed more than 4, 24% 3, 24% 2, 17% 1 and 9% of the patients showed 0 mutations. Four and more mutations occurred mostly in AML FAB M1 (n=17) and patients with a complex karyotype (n=6). Treatment related AML show less mutations compared to primary AML. Within the group of patients treated according the 1st line AML-BFM protocol (n=103), CEBPA, FLT3, KIT, NRAS, KRAS, NPM1 or WT1 mutations did not have prognostic relevance. Interestingly, we were able to detect mutations in ZRSR2 in 21 patients in total (SNVs in 6, InDels in 9 and splice acceptor variants in 6 patients). 15 patients were part of the group of patients who were treated according to the 1st line AML-BFM protocol. ZRSR2 encodes an essential splicing factor and the encoded protein associates with the U2 auxiliary factor heterodimer and may play a role in network interactions during spliceosome assembly [RefSeq 2008]. The presence of a ZRSR2 mutation seems to be associated with better EFS and lower cumulative incidence of relapse, respectively (fig.2). Even if patients with favourable cytogenetics were excluded, patients with mutated ZRSR2 might have better EFS (fig.2). Conclusions: Amplicon based panel targeted resequencing with the TruSight Myeloid panel provides the possibility to detect mutations in 54 genes associated to myeloid malignancies within 3 days. This will enable a faster and possible more precise characterisation of pediatric AML, either for risk group stratification or the addition of more specific treatment options. Due to the limited number of patients, the results concerning the prognostic relevance of ZRSR2 need to be confirmed in a larger patient group. Table patient characteristics Table. patient characteristics Figure 1 Number of variants detected in 54 genes Figure 1. Number of variants detected in 54 genes Figure 2 Event-free survival (EFS) and cumulative incidence for relapse for patients showing no mutation (blue) or mutations (red) in ZRSR2. Figure 2. Event-free survival (EFS) and cumulative incidence for relapse for patients showing no mutation (blue) or mutations (red) in ZRSR2. Disclosures Reinhardt: Jazz Pharma: Other: Travel Accomodation; Celgene: Research Funding; Celgene: Membership on an entity's Board of Directors or advisory committees; Pfizer: Membership on an entity's Board of Directors or advisory committees; Boehringer Ingelheim: Membership on an entity's Board of Directors or advisory committees.

scholarly journals Low Dose Rituximab Plus High Dose Dexamethasone As First-Line Treatment for Autoimmune Hemolytic Anemia

Blood ◽  
2020 ◽  
Vol 136 (Supplement 1) ◽  
pp. 13-14
Author(s):  
Carlos Saúl Rodríguez-Roque ◽  
Andres Gomez-De Leon ◽  
Michelle Morcos-Sandino ◽  
Nelson Josafat López-Flores ◽  
David David Galindo-Calvillo ◽  
...  
Keyword(s):  
Board Of Directors ◽  
Hemolytic Anemia ◽  
Autoimmune Hemolytic Anemia ◽  
Low Dose ◽  
Complete Response ◽  
Event Free Survival ◽  
First Line ◽  
Advisory Committees ◽  
Free Survival ◽  
Loss Of Response

Introduction Corticosteroids are the first line therapy for autoimmune hemolytic anemia (AIHA), but are associated with significant adverse events, dependency and frequent relapses. Rituximab is reserved for severe or steroid-resistant disease. Low-dose rituximab is also effective, but its efficacy in the first line has been poorly described. We report our results with this combination. Methods Adults older than 16 years newly diagnosed with warm antibody AIHA either primary or secondary were included. Patients systematically received dexamethasone 40 mg for 4 days followed by a 1 mg/kg rapid prednisone taper plus rituximab 100 mg weekly for 4 doses. Our primary outcome was response at day 28 based on the First International Consensus Meeting (complete response: normalization of Hb, no evidence of hemolysis and absence of transfusions; response: increase of Hb by >2g/dl, or normalization of biochemical resolution of hemolysis or absence of transfusion in 7 days), secondary outcome was event-free survival with an event defined as a laboratory or clinical relapse or loss of response. Results Sixteen patients were treated with low-dose rituximab during the study period, ten women (62.5%), six men (37.5%). The median age was 34 years (range, 17-78). Three (18.75%) were secondary to lupus erythematosus. The median follow-up was 20 months (range, 0.4-66). Most received 4 doses of rituximab (87.5%). All patients responded at day 28, (100%) 31.2% achieved a complete response (CR). Subsequently, 81.3% achieved CR. Ten (62.5%) were considered steroid-dependent, however, most discontinued treatment without loss of response (75%). The event-free survival was 63.8% to 5 years. Conclusion Low-dose rituximab therapy as a first-line in AIHA showed encouraging results as most patients were able to discontinue treatment without relapse. Disclosures Gomez-Almaguer: Amgen: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Novartis: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; AbbVie: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Janssen: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Celgene/BMS: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; AstraZeneca: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Pfizer: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Roche: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau.

scholarly journals Ponatinib and Chemotherapy in Young Adults with De Novo Philadelphia Chromosome-Positive Acute Lymphoblastic Leukemia. Results of Ponalfil Clinical Trial after Completion of Recruitment

Blood ◽  
2020 ◽  
Vol 136 (Supplement 1) ◽  
pp. 29-30
Author(s):  
Josep-Maria Ribera ◽  
Olga García ◽  
Pau Montesinos ◽  
Pilar Martinez ◽  
Jordi Esteve ◽  
...  
Keyword(s):  
Board Of Directors ◽  
Research Funding ◽  
Lymphoblastic Leukemia ◽  
Philadelphia Chromosome ◽  
Molecular Response ◽  
Event Free Survival ◽  
Advisory Committees ◽  
Free Survival ◽  
Allogeneic Hsct ◽  
Central Artery

Background and objective. The combination of tyrosine kinase inhibitors (TKI) and chemotherapy (intensive, attenuated or minimal) has improved the prognosis of patients (pts) with Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ALL). The combination of HyperCVAD and ponatinib has improved the molecular response and survival compared with other combinations of chemotherapy with first or second generation TKI (Jabbour E, et al, Lancet Haematol. 2018; 5:e618-e627). The Spanish PETHEMA group conducted the phase 2 PONALFIL trial, which incorporates ponatinib to the same induction and consolidation schedule of the ALL Ph08 trial (Ribera JM et al. Cancer 2019;125:2810-2817) The results of this trial after completed recruitment are herein reported. Patients and method. The PONALFIL trial (NCT02776605) combined ponatinib (30 mg/d) and induction chemotherapy (vincristine, daunorubicin and prednisone) followed by consolidation (high-dose methotrexate, ARA-C, mercaptopurine, etoposide) and allogeneic HSCT. TKI use as maintenance was only scheduled for pts with persistence or reappearance of MRD. By July 2020 the 30 scheduled pts were recruited. The response to therapy (complete morphological [CR], molecular [complete, CMR or major, MMR] after induction and before allogeneic HSCT) (assessed by centralized BCR-ABL/ABL ratio),event-free survival (EFS), overall survival [OS]) and toxicity are herein analyzed. Results. Median age was 50 (20-59) years and 14/30 pts were female. One pt showed CNS involvement at diagnosis. ECOG score at diagnosis was <2 in 86% of pts. Median of WBC count was 6.4 (0.6-359.3) x109/L, Hb 90 (63-145) g/L, platelets 38 (11-206) x109/L. The immunologic phenotype was common in 26 cases, with molecular isoform p190 in 20 patients (67%), p210 in 9 (30%) and p230 in 1 (3%). CR was attained 26/26 patients (100%) (4 are still on induction therapy), with CMR in 11/26 cases (42%), MMR in 6/26 (23%) and no molecular response in 9/26 (35%)).Two patients withdrew the trial (thrombosis of the central retina artery and severe intestinal infection, one case each). Consolidation was given to 24 patients, 2/24 are receiving consolidation and 22 patients received allogeneic HSCT (14 in CMR, 6 in MMR, 2 without molecular response). No relapses before HSCT were detected. No transplant-related mortality was observed to date, but 1 patient withdrew the trial by severe GVHD. Ponatinib was given after HSCT in 4 pts due to loss of molecular response. Three pts relapsed after HSCT, one of them after documented loss of molecular response. All pts are alive (median follow-up of 4.5 months, range 0.5-26.2.2). The EFS probability at 30 months was 91% (79%, 100%) (Figure 1). One hundred and two adverse events (AE) have been registered in 20 patients, 25 of whom were severe (SAE) and occurred in 14 patients, prompting to withdrawn of the trial in 3 (thrombosis of the central artery of the retina, severe bowel infection, grade IV aGVHD, one case each). The most frequent AE were hematologic (26%), gastrointestinal (15%), infections (10%), hepatic (8%) and cutaneous (5%). Cardiovascular events occurred in 2 patients (angor pectoris and thrombosis of central artery of the retina, one case each). Conclusions. The preliminary results of the PONALFIL trial after recruitment completed show a high short-term antileukemic efficacy with acceptable toxicity profile. Supported in part by grant 2017 SGR288 (GRC) Generalitat de Catalunya and "La Caixa" Foundation. Figure 1. Event free survival (EFS) of the whole series. Figure 1 Disclosures Ribera: Pfizer, Amgen, Ariad, Novartis: Consultancy, Speakers Bureau; Pfizer, Amgen: Research Funding. Martinez-Lopez:Incyte: Consultancy, Research Funding; Novartis: Consultancy; BMS: Consultancy, Research Funding; Janssen-cilag: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; Janssen: Consultancy, Honoraria. Garcia-Sanz:Amgen: Membership on an entity's Board of Directors or advisory committees; BMS: Honoraria; Gilead: Honoraria, Research Funding; Incyte: Research Funding; Janssen: Honoraria, Research Funding; Novartis: Honoraria; Pharmacyclics: Honoraria; Takeda: Consultancy, Research Funding.

Maintaining Imatinib ≥600 Mg Daily in the First 12 Months of Chronic Phase CML Treatment Is Associated with Superior Event-Free Survival at 5 Years.

Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 1125-1125 ◽  
Author(s):  
Michael P Osborn ◽  
Susan Branford ◽  
Deborah L White ◽  
John F Seymour ◽  
Ruth Columbus ◽  
...  
Keyword(s):  
Board Of Directors ◽  
Research Funding ◽  
Blast Crisis ◽  
Chronic Phase ◽  
Cytogenetic Response ◽  
Molecular Response ◽  
Event Free Survival ◽  
Advisory Committees ◽  
Free Survival ◽  
Event Rates

Abstract Abstract 1125 Poster Board I-147 The Australasian Leukaemia and Lymphoma Group conducted a trial (TIDEL I) in 103 patients with newly diagnosed chronic phase CML, using imatinib 600 mg/day with dose escalation to 800 mg/day for suboptimal response. This was defined as failure to achieve (1) complete haematological response (CHR) at 3 months, (2) major cytogenetic response (MCR) at 6 months, (3) complete cytogenetic response (CCR) or molecular equivalent at 9 months, or (4) less than 0.01% (IS) BCR-ABL by RQ-PCR at 12 months. Here we report the outcomes with all surviving patients having been treated for at least 60 months. We aimed to determine whether the patient outcome at 60 months was predicted by the molecular response within the first 18 months of imatinib therapy. The outcomes for patients maintaining a dose of imatinib of ≥600 mg/day in the first 12 months was compared to those who were on a reduced dose for at least part of this time. Event-free survival (EFS) was defined as death from any cause, accelerated phase/blast crisis (AP/BC), and loss of CHR, MCR or CCR. The 103 patients included 66 males and 37 females with a median (±SD) age of 49 (±14) years. All patients had an ECOG performance status of 0-2 at enrolment. The 5-year EFS was 71%, transformation (AP/BC) free survival (TFS) was 95%, and overall survival was 87%. Of the 14 patients who died, 3 died in blast crisis, 2 from transplant-related complications, 8 from CML-unrelated causes, and the cause of death of 1 patient was unavailable. The annual rates of progression to AP/BC over 5 years were 3%, 1%, 0%, 1%, and 0%, while annual event rates were 13%, 8%, 8%, 1%, and 4%. CCR was achieved by 89% of patients by 60 months, while 72% achieved a major molecular response (MMR) by this time. In the first 12 months of treatment, 55% of patients maintained an imatinib dose of ≥600 mg/day (mean ±SD dose = 604 ±10 mg/day), while 45% were on <600 mg/day for at least part of this time (mean ±SD dose = 511 ±100 mg/day). EFS at 60 months was significantly higher in patients taking ≥600 mg/day compared with those who had been dose-reduced to <600 mg/day (89% vs 56%, P<0.001). Annual event rates for the ≥600 mg/day group were 6%, 2%, 2%, 0%, and 2%, while annual event rates for those on <600 mg/day were 14%, 16%, 16%, 8%, and 4%. By 60 months, 96% of patients who had been on ≥600 mg/day within the first 12 months had achieved CCR, while only 80% of those who had been on <600 mg/day had achieved this milestone (P<0.001). Log rank analysis of the achievement of MMR was also significant (P=0.03). Overall survival and TFS after 12 months were both similar between the dosing groups. There was no difference between the dosing groups' median age (50 vs 48 years, P=0.36) or Sokal score (1.04 vs 0.94, P=0.33) that may otherwise account for these results. The outcome was also determined for all patients dependent on the BCR-ABL levels at various assessment timepoints. Patients with a BCR-ABL level of <10% (IS) at 6 months (n=92) had an EFS of 78% at 60 months, while all of those with a level >10% (IS) (n=8) had an event (P<0.001). Patients with a level of ≤1% (IS) at 12 months (equivalent to CCR) (n=81) had an EFS of 75% compared with 25% (n=13) for those with levels >1% (IS) (P<0.001). At 18 months, a level ≤0.1% (IS) (n=58) conferred an EFS of 88%, while those who had failed to attain this depth of response (n=30) had an EFS of 60%. There was a significant difference in EFS between those who had achieved an MMR at 18 months and those who had achieved a CCR, but no MMR (88% vs 67%, P=0.03). In conclusion, our data suggest that patients maintaining a dose of ≥600mg in the first 12 months of imatinib therapy are more likely to achieve CCR and MMR, and superior EFS compared to those with a lower dose. This study also confirms that achieving an MMR by 18 months is associated with improved EFS. This emphasises the value of achieving a molecular response early in the treatment course, as well as adding weight to the evidence supporting the role of molecular monitoring in CML. Disclosures Branford: Novartis Pharmaceuticals: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Bristol-Myers Squibb: Honoraria, Research Funding. White:Novartis and Britol-Myers Squibb: Research Funding. Seymour:Bayer Schering: Consultancy, Membership on an entity's Board of Directors or advisory committees, Travel grants; Roche: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding, Travel Grants. Catalano:Roche: Honoraria, Research Funding, Travel grants. Mills:Celgene Pty Ltd: Honoraria, Membership on an entity's Board of Directors or advisory committees. Hughes:Bristol-Myers Squibb: Advisor, Honoraria, Research Funding; Novartis: Advisor, Honoraria, Research Funding.

The Impact of Rituximab and Radiotherapy On Treatment Outcome of Patients with DLBCL and Skeletal Involvement

Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 690-690
Author(s):  
Gerhard Held ◽  
Samira Zeynalova ◽  
Niels Murawski ◽  
Marita Ziepert ◽  
Barbara Kempf ◽  
...  
Keyword(s):  
Overall Survival ◽  
Board Of Directors ◽  
Cox Regression ◽  
Multivariable Analysis ◽  
Event Free Survival ◽  
Advisory Committees ◽  
Free Survival ◽  
Skeletal Involvement ◽  
The Impact

Abstract Abstract 690 Background: There is limited information on the role of skeletal involvement in DLBCL patients treated with rituximab. Methods: In a retrospective subgroup analysis patients with aggressive B-cell lymphomas with and without skeletal involvement were compared with respect to clinical presentation, event-free and overall survival. Results: Of 3840 patients 292 (7.6%) had skeletal involvement. In a multivariable analysis of patients treated within the randomized MInT and RICOVER-60 trials, the two largest randomized trials addressing the role of rituximab in DLBCL to date, skeletal involvement was associated with a reduced hazard ratio (HR) of 0.8 (p=0.181) for event-free survival and 0.7 (p=0.083) for overall survival for patients treated without, but with an increased HR (1.5; p=0.048) for event-free and (1.1; p=0.828) for overall survival in patients treated with rituximab. This was due to the failure of rituximab to improve the outcome of patients with skeletal involvement. In the MInT trial, the 3-year EFS rates were 64% without and 63% with rituximab (p=0.680) and the 3-year OS rates were 83% without and 90% with rituximab (p=0.542). similarly, in the RICOVER-60 trial, the 3-year EFS rates were 45% without and 50% with rituximab (p=0.593) and the 3-year OS rates were 68% without and 68% with rituximab. In a Cox regression model for event-free survival adjusted for the IPI risk factors a relevant interaction (HR 1.5; p=0.056) term between rituximab and skeletal involvement was observed. In contrast to rituximab, additive radiotherapy to sites of skeletal involvement was associated with a better outcome: 3-year EFS rates were 40% without and 75% with radiotherapy (p<0.001), 3-year OS rates were 70% without and 86% with radiotherapy to sites of skeletal involvement (p=0.064). In a multivariable analysis radiotherapy reduced the risk for an event in EFS by 70% (HR=0.3; p=0.001) and by 50% in OS (HR=0.5; p=0.111). Conclusion: Addition of rituximab failed, but radiotherapy to sites of skeletal involvement did improve the outcome of DLBCL patients with skeletal involvement. Radiotherapy to sites of skeletal involvement, though abandoned by many cooperative groups world-wide, is recommended in the rituximab era, unless prospective trials demonstrate that it might be omitted in cases with a negative PET after immunochemotherapy. Disclosures: Dreyling: Roche: Membership on an entity's Board of Directors or advisory committees. Hallek:Roche: Membership on an entity's Board of Directors or advisory committees. Schmitz:Chugai: Membership on an entity's Board of Directors or advisory committees. Pfreundschuh:Roche: Membership on an entity's Board of Directors or advisory committees; Chugai: Consultancy.

Early Versus Deferred Treatment With Combined Fludarabine, Cyclophosphamide and Rituximab (FCR) Improves Event-Free Survival In Patients With High-Risk Binet Stage A Chronic Lymphocytic Leukemia – First Results Of a Randomized German-French Cooperative Phase III Trial

Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 524-524 ◽  
Author(s):  
Carmen D Schweighofer ◽  
Florence Cymbalista ◽  
Carolin Müller ◽  
Raymonde Busch ◽  
Raphael Porcher ◽  
...  
Keyword(s):  
High Risk ◽  
Board Of Directors ◽  
Early Stage ◽  
Phase Iii ◽  
Event Free Survival ◽  
Advisory Committees ◽  
Phase Iii Trial ◽  
Free Survival ◽  
Risk Patients ◽  
Binet Stage

Abstract Introduction Patients with asymptomatic early Rai or Binet stage chronic lymphocytic leukemia (CLL) do not benefit from mono-chemotherapy. Therefore, clinical observation without treatment (watch&wait; W&W) has been the gold standard for the management of these patients. Chemoimmunotherapy with FCR improves the outcome of patients with advanced CLL, but its efficacy in early stage disease has not been investigated. Several clinical and biological variables identify those patients who have a high risk of an aggressive disease course and who might benefit from early interventions. Consequently, this trial was conducted to test the value of FCR treatment in patients with early stage, high-risk CLL. Methods This report represents the endpoint and safety analysis of a randomized German-French cooperative phase III trial comparing the efficacy of early versus deferred FCR therapy in treatment-naïve Binet stage A CLL patients with a high risk of disease progression. Risk assessment was performed using 4 prognostic markers: Lymphocyte doubling time <12 months, serum thymidine kinase >10 U/L, an unmutated immunoglobulin heavy chain variable region gene (IGHV) status, and presence of unfavorable cytogenetics (del11q, del17p, trisomy 12) by fluorescence-in-situ hybridization. Presence of at least 2 versus less than 2 of these factors defined “high-risk” versus “low-risk” CLL. High-risk CLL patients were further randomized to receive either 6 cycles FCR (HR-FCR) or to be followed by a W&W strategy (HR-W&W). Patients with low-risk CLL were observed only (LR-W&W). Results Between 2005 and 2010, a total of 824 patients was enrolled, 423 patients in 69 centers of the German CLL Study Group and 401 patients in 25 centers of the French Cooperative Group on CLL. The diagnosis of CLL needed to be established no longer than 12 months prior to enrollment and patients were required to present with previously untreated stage Binet A CLL at the time of inclusion. Overall, 800 patients (97.1%) were stratified, 201 of them categorized as high-risk CLL (25.1%). There was no significant difference between high-risk patients from the two study groups regarding common baseline characteristics (e.g., age, sex, comorbidity, immunophenotype) and the distribution of risk factors used for stratification. 100 out of 201 high-risk patients were randomized to receive FCR therapy (HR-FCR), while 101 patients were allocated to the HR-W&W arm. 18 out of 100 patients (18%) withdrew consent for FCR therapy before treatment was started. 71 (86.6%) of 82 treated patients completed ≥4 cycles. The most common of 228 CTC grade III/IV adverse events reported within 12 months after treatment initiation were hematotoxicity (73.2% of patients) and infections (19.5% of patients). Three patients (3.7%) developed fatal CTC grade V infections (2 septic bacteremias, 1 of them with pulmonary aspergillosis; 1 encephalitis). Out of 79 patients available for response assessment until month 12 after treatment start, 76 showed a complete or partial remission (ORR 96.2%), 2 patients had stable disease (2.5%) and 1 patient had progressed (1.3%). After a median follow up of 46 months (range 0-88 months), HR-FCR patients demonstrated a significantly improved event-free survival (EFS) compared to HR-W&W patients (median EFS not reached versus 24.5 months, respectively, P<0.0001, Fig. 1). Overall survival was not significantly different between HR-FCR and HR-W&W with 181 high-risk patients (90%) being alive at last follow up. Both, HR-FCR and HR-W&W patients exhibited a significant shorter event-free and overall survival than LR-W&W patients, demonstrating an efficient prognostic segregation of patients by the risk assessment used for this trial (analysis based on the German LR-W&W cohort only, complete German-French LR-W&W data will be presented at the meeting). Conclusion This is the first randomized phase III trial investigating the efficacy of FCR chemoimmunotherapy in early stage CLL. So far, the study has revealed two major results: 1. A combination of clinical and biological factors can be used to identify early stage CLL patients who experience a rapid disease progression with unfavorable outcome, 2. FCR chemoimmunotherapy substantially improves event-free survival in early stage high-risk CLL. Disclosures: Langerbeins: Roche: travel grants Other. Cazin:roche: meeting invitation Other, Membership on an entity’s Board of Directors or advisory committees; GSK: meeting invitation, meeting invitation Other, Membership on an entity’s Board of Directors or advisory committees. Fischer:Mundipharma: Travel grants, Travel grants Other; Roche: Travel grants Other. Stilgenbauer:Roche: Consultancy, Research Funding, Travel grants Other; Mundipharma: Consultancy, Research Funding. Leblond:Roche : Consultancy, Honoraria, Membership on an entity’s Board of Directors or advisory committees, Speakers Bureau; Janssen: Honoraria, Membership on an entity’s Board of Directors or advisory committees; Mundipharma: Honoraria, Membership on an entity’s Board of Directors or advisory committees, Speakers Bureau. Hallek:F. Hoffmann-La Roche: Consultancy, Honoraria, Research Funding.

scholarly journals Administration of BPX-501 Cells Following Aβ T and B-Cell-Depleted HLA Haploidentical HSCT (haplo-HSCT) in Children with Acute Leukemias

Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 307-307 ◽  
Author(s):  
Franco Locatelli ◽  
Annalisa Ruggeri ◽  
Pietro Merli ◽  
Swati Naik ◽  
Rajni Agarwal ◽  
...  
Keyword(s):  
B Cell ◽  
Board Of Directors ◽  
Pediatric Patients ◽  
Unrelated Donor ◽  
Relapse Free Survival ◽  
Advisory Committees ◽  
Steroid Resistant ◽  
Free Survival ◽  
Equity Ownership

Abstract Background Allogeneic hematopoietic stem cell transplantation (HSCT) is a well-established treatment for children with Acute Leukemia (AL). For patients lacking a compatible matched related or unrelated donor, HLA-haploidentical HSCT (haplo-HSCT) from a relative represents a viable alternative. Promising results were reported with a novel method of selective depletion of αβ T and B cells (Locatelli, Blood 2017). This approach is associated with limitations such as suboptimal adaptive immune reconstitution, increased risk of infection and disease relapse. BPX-501 is an allogeneic product consisting of T cells modified to express the inducible caspase-9 (iC9) safety switch and truncated CD19 to allow monitoring and expansion of BPX-501 following transplant. The polyclonal nature of the BPX-501 provides broad virus and tumor-specific immunity, while the safety switch provides the unique ability to promptly and durably resolve graft-versus-host disease (GvHD) symptoms following the administration of rimiducid which induces dimerization and activation of iC9, inducing apoptosis of BPX-501. Aims To evaluate the safety and efficacy of BPX-501 administered after a αβ T and B-cell depleted haplo-HSCT in pediatric patients with AL in morphological complete remission (CR). The objective was to determine whether BPX-501 infusion can increase relapse-free survival (RFS) and overall survival (OS) through an enhanced graft-versus-leukemic (GvL) effect, while maintaining a low risk of GvHD. Methods This multicenter US (NCT03301168) and EU (NCT02065869), prospective trial utilizes αβ-T and B-cell-depleted haplo-HSCT followed by infusion of donor lymphocytes genetically modified with iC9 safety switch (BPX-501) in patients with malignant or non-malignant disorders. A subset of patients had acute high-risk leukemias (AML and ALL). BPX-501 was planned to be infused on day14±4 after the allograft. No post-transplant pharmacological GvHD prophylaxis was employed. Patients who develop GvHD resistant to conventional steroid therapy could receive ≥1 dose of rimiducid to activate iC9. The efficacy-evaluable population (EEP) was defined as any patient with AL who received HSCT, BPX-501 infusion, and at least one follow-up assessment. Results At clinical cut-off (June 30, 2018), 100 patients (EU: 75, US: 25) with AL met the EEP definition. Median follow-up was 14.7 mos (1 - 40.6 mos). Key baseline characteristics are shown in Table 1. The median time for neutrophil and platelet engraftment was 16 (15 - 17) and 12 (11 - 12) days, respectively. Four patients (4.1% [95% CI: 0 - 8%]) experienced primary graft failure. Of 96 evaluable patients, 21 patients developed Grade I-IV aGvHD (21.7% [95% CI: 13.5 - 29.8%]). Five patients developed Grade III-IV aGvHD (3.1% [95% CI: 0 - 6.5%]). Of 82 evaluable patients, 12 patients developed cGvHD (18.1% [95% CI: 8.2 - 22%]), with only three cases being moderate-severe. Rimiducid was administered to 10 patients with steroid-resistant acute GvHD. Best overall clinical response of CR or PR post-rimiducid administration was seen in 8 patients (80%). Among responding patients, 7 patients (87.5%) had a CR. Six patients died after transplantation (6.6% [95% CI: 1.4 - 11.7%]). Relapse Free Survival (RFS) was 82.2% (95% CI: 74.5 - 89.7%). Overall Survival (OS) was 90.1% (95% CI: 83.9 - 96.3%). Efficacy outcomes (TRM, RFS and OS) in AL subsets (AML and ALL) are shown in Table 2. CD3+ and CD3+CD4+ T cells above 500 cells/ml were achieved by 180 and 270 days, respectively. IgA and IgM levels achieved normal values by 180 days. The percentage of circulating and median absolute BPX-501 cells at Day 100 were 9.96% ± 11.6% (0 - 54.9%) and 85.58 ± 165.57 cells/ul (0 - 1001 cells/ml), respectively. Conclusion The adoptive transfer of BPX-501 following αβ-T and B-cell depleted haplo-HSCT represents a novel and highly effective transplantation strategy for pediatric patients with AL. Compared to data from children receiving only αβ T and B-cell depleted haplo-HSCT or matched unrelated donor HSCT (https://bloodcell.transplant.hrsa.gov/research/transplant_data/us_tx_data/survival_data/survival.aspx), this novel approach resulted in a comparable risk of transplant-related mortality and a lower risk of recurrence. Rimiducid was also an effective treatment for patients who developed steroid-resistant GvHD. Disclosures Locatelli: bluebird bio: Consultancy; Novartis: Consultancy, Membership on an entity's Board of Directors or advisory committees; Miltenyi: Honoraria; Bellicum: Consultancy, Membership on an entity's Board of Directors or advisory committees; Amgen: Honoraria, Membership on an entity's Board of Directors or advisory committees. Qasim:Orchard: Equity Ownership; Autolus: Equity Ownership; Servier: Research Funding; Bellicum: Research Funding. Nemecek:Novartis Pharmaceuticals Corporation: Other: advisory boards.

scholarly journals Similar Quality of Life with 5mg Versus 25mg Lenalidomide Maintenance after First-Line High-Dose Therapy and Autologous Blood Stem Cell Transplantation for Multiple Myeloma: Results of the Lenamain Trial

Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 2003-2003 ◽  
Author(s):  
Amelie Boquoi ◽  
Aristoteles Giagounidis ◽  
Hartmut Goldschmidt ◽  
Michael Heinsch ◽  
Mathias J Rummel ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Board Of Directors ◽  
Research Funding ◽  
High Dose ◽  
Event Free Survival ◽  
Advisory Committees ◽  
Free Survival ◽  
Travel Grant ◽  
Grade 3

Abstract Introduction The LenaMain study is a prospective, randomized, open label, multicenter phase III trial which included 188 patients 3 months after first-line high dose treatment and autologous stem cell transplantation (NCT number: NCT00891384). Patients were equally randomized to receive either 25 (n = 94, arm A) or 5 mg (n = 94, arm B) lenalidomide maintenance until disease progression following a uniform 6 months of 25 mg lenalidomide consolidation. Final analysis after follow-up of 46.7 months was presented at ASCO 2018 (#8016) demonstrating an extended event-free survival for arm A (11.8 months, p=0.032) and an about 10% increase of grade 3/4 infections per year as main toxicity. Here we report analysis of quality of life (QoL) data as secondary endpoint of the study. Materials & Methods The EORTC Quality of Life Questionnaire C30 (QLQ-C30) was collected at baseline and then monthly at every new cycle. The Global Health Status/Quality of Life (GHS/QoL) scale, the utility score and seven subscales (fatigue, nausea and vomiting, pain, physical functioning, role functioning, disease symptoms, and adverse effects of treatment) were compared between groups using a mixed model for repeated measures. Results Baseline questionnaire compliance was excellent (95.7%) and declined over time (82%, 76%, 71%, 54%, 49% after consolidation and after year 1, 2, 3 and 4 of maintenance, respectively). At baseline, GHS/QoL (67/67) and utility (0.73/0.72) scores for arm A/B were generally high and did not differ between both arms. The median GHS/QoL change between consolidation baseline and maintenance baseline was -1%. GHS/QoL scores appear constant for both treatment arms at most time points in the first 2 years of maintenance. Relevant improvements ≥ 5 points were observed in 30% of patients while improvements ≥ 15 points were observed in 20% of patients. During the same time a similar percentage of patients had relevant ≥ 5 and ≥15 point deteriorations, with a general tendency for a slight increase at the end of year 2. Notably, a greater number of deteriorations was found in the 5 mg lenalidomide arm. Mean GHS/QoL was constant during maintenance with a slight decrease of <2 over the 1st year, reaching borderline relevance after the 2nd year with a mean change of -6 which was mainly driven by the 5 mg lenalidomide treatment arm (25 mg arm: -4 vs. 5 mg arm: -8). Utility values remained constant during maintenance (change from baseline 0.003, p=0.9 at year 1; 0.02, p=0.7 at year 2) and the overall pattern in the change over time does not appear to show any clear differences between the two treatment arms. Looking at QLQ-C30 subgroup domains after two years of maintenance, we observed a significantly higher change from baseline for diarrhea in the 25 mg lenalidomide arm, which may be a long-term drug-related effect. Conversely, role functioning was also significantly better in patients treated within the 25 mg lenalidomide arm. Other subgroups did not show significant differences after the second year. Overall GHS/QOL scores were not significantly different in patients with CR vs. ≥ vgPR. Similarly, there was no statistical difference in patients on treatment for 1, 2, 3 or 4 years of maintenance or in patients suffering from grade 3/4 adverse events or not. Thus, neither disease activity, nor duration of treatment nor high-grade toxicity biased our results. Conclusion The LenaMain trial shows that maintenance treatment with 25 mg lenalidomide vs. 5 mg significantly prolongs event-free survival. QoL, as secondary objective, was not different between both treatment arms, even showing a trend for improved QoL in the 25 mg lenalidomide treatment arm. Thus, QoL was not governed by the higher rate of infectious toxicity during high-dose lenalidomide maintenance. Disclosures Boquoi: Amgen: Honoraria, Other: Travel grant; Bristol-Myers Squibb: Honoraria; Janssen: Other: Travel grant; Celgene: Other: Travel grant. Goldschmidt:Celgene: Consultancy, Honoraria, Research Funding; Chugai: Honoraria, Research Funding; ArtTempi: Honoraria; Takeda: Consultancy, Research Funding; Janssen: Consultancy, Honoraria, Research Funding; Sanofi: Consultancy, Research Funding; Novartis: Honoraria, Research Funding; Mundipharma: Research Funding; Bristol Myers Squibb: Consultancy, Honoraria, Research Funding; Amgen: Consultancy, Research Funding; Adaptive Biotechnology: Consultancy. Rummel:Gilead: Honoraria, Membership on an entity's Board of Directors or advisory committees; Roche: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Mundipharma: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Astellas: Honoraria; Janssen: Honoraria, Membership on an entity's Board of Directors or advisory committees; Eisai: Honoraria; Celgene: Honoraria; Amgen: Honoraria, Membership on an entity's Board of Directors or advisory committees; Symbio: Honoraria. Kroeger:Sanofi: Honoraria; JAZZ: Honoraria; Novartis: Honoraria, Research Funding; Neovii: Honoraria, Research Funding; Celgene: Honoraria, Research Funding; Riemser: Honoraria, Research Funding. Mai:Celgene: Other: travel grant; Janssen: Honoraria, Other: Travel grant; Takeda: Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: Travel grant, Research Funding; Onyx: Other: travel grant; Mundipharma: Other: travel grant. Kobbe:Amgen: Honoraria, Research Funding; Roche: Honoraria, Research Funding; Celgene: Honoraria, Other: Travel Support, Research Funding. Fenk:Amgen: Honoraria; Takeda: Honoraria; Celgene: Honoraria, Other: Travel grant, Research Funding; Bristol-Meyers Squibb: Honoraria, Other: travel grant; Janssen: Honoraria.

Impact of the Timing of Complete Remission and Transplantation on Estimates of Event-Free Survival in Acute Myeloid Leukemia

Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 214-214 ◽  
Author(s):  
Jun Yin ◽  
Betsy R. Laplant ◽  
Geoffrey L. Uy ◽  
Guido Marcucci ◽  
William Blum ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Complete Remission ◽  
Board Of Directors ◽  
Phase Ii Study ◽  
Phase Iii ◽  
Event Free Survival ◽  
Advisory Committees ◽  
Free Survival ◽  
Phase Iii Study ◽  
Induction Failure

Abstract Background: Event free survival (EFS) is often used as an endpoint in AML clinical trials. EFS-based endpoints are controversial due to the lack of a consistent definition for the timing of complete remission (CR), and consideration of hematopoietic cell transplantation (HCT). Here, we examined the impact of the timing of achievement of CR and censoring for HCT in the estimation of the EFS, and assessed its robustness as an endpoint in AML. Methods: All prospective trials since 2003 using anthracycline and cytarabine chemotherapy for newly diagnosed patients (pts) with AML conducted through the Alliance for Clinical Trials in Oncology, and whose primary endpoint data has been reported, were included (5 trials total). Trial 1 - randomized phase III study in older AML pts (n=504, median age 69, 61% male); trial 2 - single-arm phase II study in older FLT3-mutated AML pts (n=54, median age 67, 56% male); trial 3 - randomized phase III study in younger AML pts (n=546, median age 48, 55% male); trial 4 - randomized phase III study in younger FLT3-mutated AML pts (n=717, median age 48, 45% male); and trial 5 - single arm phase II study in core-binding factor AML pts with no restriction on age (n=61, median age 51, 51% male). Induction failure was defined as one of: no CR by 60 days (Definition 1), no CR by the end of all protocol induction courses (Definition 2), or no CR by the end of all protocol treatment (Definition 3). CR was defined as <5% blasts in a cellular marrow with recovery of >1000 neutrophils/ul (>1500 neutrophils/ul for trial 1), >100,000 platelets/ul, and no red cell transfusion requirement. EFS was defined as the time from randomization / registration to the first evidence of induction failure using each of the 3 methods above, relapse, or death from any cause. Patients last known to be alive without relapse were censored at the date of last contact. Including the 3 induction failure definitions and consideration of censoring or no censoring for HCT, the Kaplan Meier estimates of EFS were computed for the six different definitions of EFS. Results: The number of deaths was respectively 464, 38, 307, 357, and 13 across the 5 trials, with a median follow-up of 99.7, 28.2, 60.1, 58.2, and 33.5 months on the alive patients, respectively. Not considering HCT, in trial 1, the median EFS ranged from 2.0 to 4.3 months (115% difference); in trial 2, the median EFS ranged from 6.9 to 8.3 months (20% difference); in trial 3, the median EFS ranged from 9.8 to11.2 months (14% difference); and in trial 4, the median EFS ranged from 5.5 to 9.7 months (76% difference). The median EFS was not achieved in trial 5; however the 1-year EFS estimates ranged from 78 to 83% (6% difference). Consistently across all trials, as expected, the EFS estimate using the 60-day induction failure yielded the shortest estimates, whereas the end-of-treatment induction failure yielded the longest estimates. Results were similar both with and without censoring at the time of HCT as the event of interest occurred prior to transplantation in most cases. Conclusions: Although relapse and death are firm endpoints, the determination of failure to achieve CR is not consistent across studies. While there is minimal impact of censoring at HCT on EFS estimates, the median EFS estimates differed considerably based on the timing of CR used to define induction failure, with the magnitude of difference being large enough in most cases (observed range: 14% to >100%) to lead to incorrect conclusions about efficacy in a single arm trial if the trial definition was not consistent with the definition used for the historical control. The timing of CR should be carefully examined in the historical control data used to guide the design of the next trial. Table. Table. Disclosures Uy: Glycomimetics: Consultancy; Boehringer Ingelheim: Consultancy. Stone:Celator: Consultancy; Abbvie: Consultancy, Membership on an entity's Board of Directors or advisory committees; Agios: Consultancy; Amgen: Consultancy; Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees; Karyopharm: Consultancy; Novartis: Consultancy; Jansen: Consultancy; Pfizer: Consultancy; ONO: Consultancy; Juno Therapeutics: Consultancy; Merck: Consultancy; Roche: Consultancy; Seattle Genetics: Consultancy; Sunesis Pharmaceuticals: Consultancy; Xenetic Biosciences: Consultancy.

Final Results of a Phase 2 Study of Bendamustine in Combination with Dexamethasone in Patients with Previously Treated Systemic Light-Chain (AL) Amyloidosis

Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 4523-4523
Author(s):  
Galina Grigoriev Lagos ◽  
Suzanne Lentzsch ◽  
Raymond L. Comenzo ◽  
Jeffrey Zonder ◽  
Keren Osman ◽  
...  
Keyword(s):  
Board Of Directors ◽  
Research Funding ◽  
Response Rate ◽  
Al Amyloidosis ◽  
Event Free Survival ◽  
Advisory Committees ◽  
Free Survival ◽  
Hematologic Response ◽  
Phase 2 Study ◽  
Organ Response

Abstract Background: No established therapies exist for patients who fail or relapse after initial therapy for AL amyloidosis. Bendamustine has shown potential in treating multiple myeloma, chronic lymphocytic leukemia and non-Hodgkins lymphoma but it has not been well studied in AL amyloidosis. We sought to investigate the efficacy and safety of using Bendamustine in combination with dexamethasone (Ben/Dex) in patients with relapsed AL amyloidosis in a multi-center phase 2 study and present the results of the final analysis. Methods: This Phase IIa clinical trial enrolled 31 patients who had persistent or progressive AL amyloidosis after at least 1 prior therapy. An optimal two-stage Simon design approach was used. Of 13 patients initially enrolled, 3 experienced hematologic partial response (PR), and an additional 16 were treated in the second stage. It was pre-determined that if 9 or more of the 29 patients with evaluable response had hematologic PR or better the treatment would be considered worthy of further development. Evaluable response was defined as patients who completed at least 2 treatment cycles. The primary objective was to determine the rate of partial hematologic response (PR). Secondary objectives included the overall hematologic response rate, organ response rate, toxicity profile, event free survival, and overall survival (OS). Patients received treatment in 28 day cycles with Bendamustine given on day 1 and day 2 (100 mg/m2 IV for CrCl≥60 mL/min, 90 mg/m2 IV for CrCl 59-30 mL/min, 70 mg/m2 IV for CrCl 15-30 mL/min) and dexamethasone 20-40 mg given weekly. Treatment was continued until disease progression or for up to 6 courses after complete response (CR). Reasons for discontinuation also included unacceptable toxicity, patient refusal, and non-response. Results :Of the 31 patients enrolled in the trial, 29 had evaluable responses and completed a median of 4 cycles of therapy (range 2-12) with one patient still undergoing treatment as of 7/1/2016. Median age of enrolled patients was 64 (range 42-78). Primarily involved organs included heart (53%), kidney (36%), nerve (7%), and liver (4%); 18 patients had ≥2 major organs involved. The patients received a median of 1.5 prior treatments (range 1-4) and 13 had received prior autologous stem cell transplants. Of evaluable patients (n=29), 41% had hematologic response to Ben/Dex (3% CR, 17% very good partial response, 24% PR). Of these 13 patients, 6 had a response after only 1 cycle of therapy and the median time to best response was 1 cycle (range 1-6 cycles). The median follow up of patients was relatively long, 18.4 months (range 1.5-41.5) and the median OS has not yet been reached (Figure 1). Event free survival defined as time to death, progression of disease or initiation of new therapy was 9.24 months (range 1.8-18.0) (Figure 2). Only 3 patients discontinued treatment due to disease progression while 8 stopped due to an adverse event (AE) although 5 AEs were only grade 1-2 events. There was 1 death during treatment that was unrelated to the study drug and due to underlying cardiac amyloidosis. The most common drug related all grade AEs included anemia (9%), fatigue (8%), and nausea (7%). Organ response was observed in 5 out of 16 patients with renal involvement and 2 out of the 19 patients with cardiac involvement. Conclusions : Bendamustine in combination with dexamethasone is active treatment in patients with AL amyloidosis who had failed multiple prior therapies and results in a significant hematologic response. Treatment was very well tolerated with a low incidence of severe AE in this delicate patient population. Therefore bendamustine is another treatment approach for AL amyloidosis patients who currently have limited therapeutic options. Figure 1 Figure 1. Figure 2 Figure 2. Disclosures Lentzsch: Foundation One: Consultancy; BMS: Consultancy; Celgene: Consultancy, Honoraria. Comenzo:Karyopharm: Research Funding; Prothena: Consultancy, Research Funding; Janssen: Consultancy, Research Funding; Takeda: Consultancy, Research Funding. Zonder:Celgene: Consultancy, Honoraria, Research Funding; Janssen: Consultancy, Honoraria; Prothena: Consultancy, Honoraria; Seattle Genetics: Consultancy, Honoraria; Bristol Myers Squibb: Consultancy, Honoraria; Takeda: Consultancy, Honoraria; Pharmacyclics: Other: DSMC membership. Pregja:Takeda: Consultancy, Honoraria; Celgene: Consultancy, Honoraria, Research Funding; Seattle Genetics: Consultancy, Honoraria; Janssen: Consultancy, Honoraria; Prothena: Consultancy, Honoraria; Bristol Myers Squibb: Consultancy, Honoraria; Pharmacyclics: Other: data safety monitoring committee. Landau:Prothena: Honoraria, Membership on an entity's Board of Directors or advisory committees; Spectrum Pharmaceuticals: Honoraria, Membership on an entity's Board of Directors or advisory committees; Onyx/Amgen: Research Funding; Takeda: Membership on an entity's Board of Directors or advisory committees, Research Funding; Janssen: Consultancy.

scholarly journals Long-Term Outcome of Total Therapy Regimens: Impact of Molecular Subgroups

Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. 3309-3309
Author(s):  
Frits van Rhee ◽  
Maurizio Zangari ◽  
Carolina D. Schinke ◽  
Guido J. Tricot ◽  
Doug Steward ◽  
...  
Keyword(s):  
Board Of Directors ◽  
Research Funding ◽  
Low Risk ◽  
Event Free Survival ◽  
Advisory Committees ◽  
Free Survival ◽  
Cure Fraction ◽  
Research Grant

Introduction. Our TT regimens for newly diagnosed multiple myeloma (MM) incorporate novel agents into a sequential treatment program comprising induction, tandem autologous stem cell transplantation and consolidation followed by 3 years of maintenance. Herein, we report the very long-term results in a large cohort of 1986 patients treated on successive TT protocols, the most mature of which (TT1, 2, and 3a) have a median follow-up ranging from 12.8 to 23.1 yrs. Methods. TT1 (1990) was followed by TT2 (1998), which introduced Thalidomide (T) in a randomized fashion. TT3 used bortezomib (V) throughout, with TT3a (2003) and 3b (2006) having different maintenance. TT3a used in year 1 of maintenance V, T and dexamethasone (D) and in years 2 and 3 TD. TT3b introduced lenalidomide (R) during maintenance for 3 years together with V and D. TT4 (2009) only enrolled patients with GEP-defined low risk disease and randomized patients to a standard arm or light arm using a similar regimen as TT3b. TT5 (2009) was specifically designed for patients who have a high 70-gene score and employed a dose dense treatment approach. Finally, TT6 (2009) accrued previously treated, patients irrespective of GEP-defined risk using a treatment schema similar to that used in TT5. Gene expression profiling was used to assign molecular classifications. These include HY (hyperdiploidy), LB (gene expression patterns frequently seen in patients with fewer focal bone lesions), MF (spikes in MAF and MAFB expression), MS (hyperactivation of MMSET +/- FGFR3), PR (over-expression of proliferation-related genes), and CD-1 or CD-2 (different forms of aberrant CCND1 and CCND3 expression). A mixed parametric cure model was used to estimate the proportion of patients with long-term, event-free survival, or the "cure fraction." When using progression free survival (PFS) in the model, the cure fraction is the percent of patients who are likely to never experience relapse based on trends in the survival times that have been observed. When using complete remission duration (CRD) in the model, the model estimates the cure fraction among patients who achieved complete response. Results. The median follow-up on the entire cohort patients was 11.6 years (range: 0.0-27.6) The median overall survival was 9.2 years, with 79.3% and 48.0% having an event-free survival greater than 3 and 10 years, respectively. Overall, patients with GEP70 low risk MM had estimated PFS and CRD cure fractions of 20.1% and 32.7%, respectively. GEP70 high risk MM patients fared much worse with estimated cure fractions of only 8.2 and 11.0%. The estimated PFS- and-CRD based cure fractions increased over time with successive protocols (PFS-cure: 6.0% in TT1 to 27.7% in TT4; CRD-cure: 9.3 to 49.8%). These cure fractions were consistent with the early plateau in the PFS and CRD curves seen at 9 years in TT4 patients. The highest cure fractions were seen in the CD-1 molecular group (34.9 and 40.3%) with intermediate outcomes in the HY (20.1 and 30.0%) and MS (22.8 and 33.5%) groups (Table 1). Surprisingly, low cure fractions were observed in the LB (1.1 and 13.5%) and CD-2 groups (13.5 and 26.4%). CD-1, LB and CD-2 groups had similar 5-yr PFS rates of 60, 60 and 63% respectively, but a steady low rate of relapse was observed in the CD-2 and especially the LB group. These findings were confirmed in a 5-yr landmark analysis showing high PFS and CRD cure fractions in the CD-1 group of 62.7 and 72.3% respectively contrasting to much lower cure fractions in the CD-2 (47.2 and 49.2%) and LB (30.8 and 45.0%) groups. Conclusions. We report excellent long-term outcomes in patients with GEP70 low risk MM and cure fractions in the range of 20-30%. Patients with LB and CD-2 subgroups have lower overall cure rates, despites similar initial 5-yr PFS rates compared to the superior performing CD-1 group, which can be explained by the occurrence of late relapses. Table 1 Disclosures van Rhee: EUSA: Consultancy; Adicet Bio: Consultancy; Takeda: Consultancy; Sanofi Genzyme: Consultancy; Kite Pharma: Consultancy; Karyopharm Therapeutics: Consultancy; Castleman Disease Collaborative Network: Consultancy. Walker:Celgene: Research Funding. Davies:Janssen, Celgene: Other: Research Grant, Research Funding; Amgen, Celgene, Janssen, Oncopeptides, Roche, Takeda: Membership on an entity's Board of Directors or advisory committees, Other: Consultant/Advisor. Morgan:Amgen, Roche, Abbvie, Takeda, Celgene, Janssen: Honoraria, Membership on an entity's Board of Directors or advisory committees; Celgene: Other: research grant, Research Funding. OffLabel Disclosure: anti-CD38 monoclonal antibody targeting myeloma

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