scholarly journals Baseline PET-Derived Metabolic Tumor Volume Metrics Predict Progression-Free and Overall Survival in DLBCL after First-Line Treatment: Results from the Phase 3 GOYA Study

Blood ◽  
2017 ◽  
Vol 130 (Suppl_1) ◽  
pp. 824-824 ◽  
Author(s):  
Lale Kostakoglu ◽  
Maurizio Martelli ◽  
Laurie H. Sehn ◽  
David Belada ◽  
Angelo-Michele Carella ◽  
...  

Abstract Introduction: Quantitative 18fluorodeoxyglucose positron emission tomography (PET)/computed tomography assessment using total metabolic tumor volume (TMTV) and tumor lesion glycolysis (TLG) measurements has been found promising as an objective method to predict survival in diffuse large B-cell lymphoma (DLBCL) patients (pts). However, the methodology for PET-derived metrics is still evolving, and their predictive value is yet to be proven in large-scale, prospective, multicenter studies. We investigated the prognostic value of baseline maximum standardized uptake value (SUVmax), TMTV and TLG for progression-free survival (PFS) in a large pt cohort treated with obinutuzumab (GA101; G) or rituximab (R) combined with cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) in the Phase 3 GOYA study (NCT01287741; Vitolo et al. J Clin Oncol 2017). Methods: Pts aged ≥18 years, with previously untreated, CD20-positive DLBCL and an International Prognostic Index (IPI) score ≥2 and low-risk pts with IPI scores of 1 (not due to age alone) or 0 (with bulky disease) were randomized 1:1 to receive 8 x 21-day cycles of G (1000mg intravenous [IV] on Days [D] 1, 8, and 15 of Cycle [C] 1 and D1, C2-8) or R (375mg/m2 IV on D1, C1-8) plus 6 or 8 cycles of CHOP. All pts had a baseline and end of treatment (EOT) PET. PET images were segmented using an automated workflow program in MIM software, applying thresholds of 1.5 x liver background and a minimum volume of 1mL to the whole body PET images. The data were analyzed for the overall population and according to germinal center B-cell-like (GCB), unclassified, and activated B-cell-like (ABC) subtypes of DLBCL. TMTV, TLG, and SUVmax were split into 4 categories/levels according to the following quartiles: Q1, <25%; Q2, 25-50%; Q3, 50-75%; and Q4, 75-100%, which were obtained based on their distribution in the available population. The reported hazard ratios (HRs) refer to stratified log-rank tests comparing Q2, Q3, and Q4 to Q1, adjusted for stratification factors of the study: IPI score (low [0-2], intermediate [3], and high [4-5]) and number of planned CHOP cycles (6 or 8). Results: Of 1418 enrolled pts, 1346 had a baseline PET scan and 1334 had detectable lesions. There was no statistical difference in PFS between the treatment arms (G vs R), thus the entire cohort was analyzed as a whole. Results of the predictive value of baseline TMTV for PFS are presented in quartiles in Figure 1, and results of the predictive value of TLG for PFS are presented in quartiles in Figure 2, for the overall PET intent-to-treat population. After a median follow-up of 29 months TMTV and TLG were highly predictive of PFS when comparing Q4 vs Q1: HR=2.21, 95% CI 1.48-3.29, p<0.0001, and HR=1.91, 95% CI 1.28-2.85, p=0.0005, respectively. TMTV was also predictive of overall survival (OS): HR=2.63, 95% CI 1.55-4.46; p<0.0001. However, SUVmax-based prediction of PFS was not statistically significant (HR=0.84, 95% CI 0.57-1.23, p=0.3782). Three-year PFS for pts in TMTV Q1, 2, 3 and 4 was 86% (95% CI 81-89%), 84% (95% CI 78-88%), 78% (95% CI 72-83%) and 66% (95% CI 59-71%), respectively. TMTV also showed a trend for a better prediction of PFS (Figure 3) and OS in pts with the unclassified and ABC DLBCL subtypes when compared with those with the GCB subtype. Conclusions: This large prospective study confirms baseline TMTV and TLG as predictors of PFS and OS in DLBCL after first-line immunochemotherapy, while SUVmax may not be a predictor. Furthermore, TMTV and TLG appear to be better predictors of survival for pts with the unclassified and ABC subtypes of DLBCL than for those pts with the GCB subtype. Further analyses are underway comparing these results with the predictive value of percentage change from baseline to EOT PET, Deauville score-based analysis of EOT PET, and the various molecular DLBCL subtypes. Figure 1 Figure 1. Disclosures Kostakoglu: Roche: Consultancy, Other: GOYA is sponsored by F. Hoffmann-La Roche Ltd. Third-party editorial support, under the direction of Lale Kostakoglu and Denis Sahin, was provided by Helen Cathro of Gardiner-Caldwell Communications, and was funded by F. Hoffmann-La Roche Ltd. Sehn: Celgene: Consultancy, Honoraria; Seattle Genetics: Consultancy, Honoraria; Janssen: Consultancy, Honoraria; Abbvie: Consultancy, Honoraria; Amgen: Consultancy, Honoraria; Roche/Genentech: Consultancy, Honoraria. Chua: Lundbeck: Honoraria; Roche: Honoraria; Seattle Genetics: Honoraria; Gilead Sciences: Honoraria; Merck: Honoraria. Gonzalez-Barca: Gilead: Consultancy; Sandot: Consultancy; Janssen: Speakers Bureau; Roche: Speakers Bureau. Pinto: Millenium Takeda: Research Funding; Gilead: Honoraria; Roche: Honoraria; Bristol Myers Squibb: Honoraria; Merck Sharp Dome: Honoraria; Celgene: Honoraria; Helssin: Honoraria; Mundipharma EDO: Speakers Bureau. Fingerle-Rowson: F. Hoffmann-La Roche Ltd: Employment, Equity Ownership. Knapp: Roche: Employment. Mattiello: Roche: Employment. Nielsen: F. Hoffmann-La Roche Ltd: Employment, Equity Ownership. Sellam: Roche: Employment. Sahin: Roche: Employment, Equity Ownership. Vitolo: Janssen: Honoraria, Membership on an entity's Board of Directors or advisory committees; Gilead: Honoraria; Mundipharma: Honoraria; Takeda: Honoraria; Celgene: 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. Trněný: Janssen: Consultancy, Honoraria; Abbvie: Consultancy, Honoraria; Gilead: Consultancy, Honoraria; BMS: Consultancy, Honoraria; Takeda: Consultancy, Honoraria; Roche: Consultancy, Honoraria, Research Funding; Celgene: Consultancy, Honoraria, Research Funding.

Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 2882-2882 ◽  
Author(s):  
Sally F Barrington ◽  
Judith Trotman ◽  
Deniz Sahin ◽  
David Belada ◽  
Andrew Davies ◽  
...  

Abstract Introduction: Evidence suggests that baseline 18fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography-derived parameters, such as metabolic tumor volume (MTV) and maximum standardized uptake value (SUVmax), may predict progression-free survival (PFS) in patients (pts) with follicular lymphoma (FL) treated with first-line R-CHOP immunochemotherapy. However, data from pts routinely treated with bendamustine or antibody maintenance are lacking, and several methods have been used to evaluate PET metrics for tumor burden in pts with lymphoma. This prospective exploratory analysis assessed the prognostic value of baseline MTV, total glycolytic activity (TLG), and SUVmax for PFS and overall survival (OS) in pts with FL treated with first-line obinutuzumab (GA101; G) or rituximab (R) plus chemotherapy (chemo) in the Phase III GALLIUM study (NCT01332968; Marcus et al. N Engl J Med 2017), using two published methods for measuring tumor burden. Methods: Pts ≥18 years with previously untreated FL (grade 1-3a) and advanced disease (Stage III/IV or Stage II with tumor diameter ≥7cm) requiring treatment were randomized 1:1 to receive 6-8 cycles of G (1000mg intravenous [IV] on days [D] 1, 8, and 15 of cycle [C] 1 and D1, C2-6 or 8) or R (375mg/m2 IV on D1) plus standard chemo (CHOP, bendamustine, or CVP). Responding pts received the same antibody as maintenance every 2 months for up to 2 years. After an early protocol amendment, PET imaging at baseline and end of induction (EOI) was mandatory in the first 170 pts and optional thereafter. Independent reviewers segmented FDG-avid tumors applying thresholds of I) standardized uptake value (SUV)max ≥2.5, and II) SUVmax ≥41% of lesional maximum SUV and a minimum volume of 1mL, using MIM software. Results were analyzed for the PET intent-to-treat population. MTV, TLG, and SUVmax were split into quartiles: Q1, <25%; Q2, 25-49%; Q3, 50-74%; and Q4, 75-100%, based on their distribution in the available population. Investigator-assessed PFS and OS were estimated using Kaplan-Meier methods (data cut-off, February 12, 2018). Hazard ratios refer to stratified log-rank tests comparing Q2, Q3, and Q4 with Q1, adjusted for the randomization stratification factors FLIPI score and chemo regimen. Multivariable Cox analyses were also undertaken to investigate whether baseline MTV quartiles and other covariates were prognostic for PFS. Statistical significance at 0.05 was determined using the Wald test. Results: Of 1202 enrolled FL pts, 609 had a baseline PET scan and 521 had baseline PET scans available for all quantitative assessments by central review; 303 pts (58%) received bendamustine, 179 (34%) CHOP, and 39 (8%) CVP. After a median follow-up of 57 months, none of the 3 baseline PET parameters (MTV or TLG measured by either method or SUVmax) significantly predicted PFS (Table). Multivariable analysis, which included baseline pt and disease characteristics, confirmed that MTV did not predict PFS. Consistent with the primary analysis, receipt of G-chemo was an independent predictor of improved PFS. Conclusions: Contrary to previous reports, these prospective data from the Phase III GALLIUM study show that baseline quantitative PET metrics do not predict PFS or OS in FL pts receiving first-line immunochemotherapy (of whom the majority received bendamustine) followed by antibody maintenance treatment, irrespective of the measurement method applied. Conversely, a previously reported analysis from GALLIUM suggests that PET-complete metabolic response at EOI assessed using Lugano 2014 criteria is a strong predictor of long-term outcome in these pts. Table. Table. Disclosures Barrington: EPSRC: Research Funding; Department of Health (England): Research Funding; F.Hoffmann-La Roche: Membership on an entity's Board of Directors or advisory committees; National Institute of Health Research: Research Funding; MRC: Research Funding; CRUK: Research Funding. Trotman:Janssen: Other: Unremunerated member of Ad Board, Research Funding; Celgene: Other: Unremunerated member of Ad Board, Research Funding; PCYC: Research Funding; Takeda: Other: Unremunerated member of Ad Board; F. Hoffman-La Roche: Other: Travel to meeting, Unremunerated member of Ad Board, Research Funding; Beigene: Research Funding. Sahin:Roche: Employment, Equity Ownership. Belada:Janssen-Cilag: Consultancy, Research Funding; Gilead Sciences: Consultancy, Research Funding; Seattle Genetics: Consultancy, Research Funding; Celgene: Research Funding; Roche: Consultancy, Research Funding; Takeda: Consultancy, Research Funding. Davies:Janssen: Consultancy, Honoraria; GSK: Research Funding; Karyopharma: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Takeda: Consultancy, Membership on an entity's Board of Directors or advisory committees; ADC Therapeutics: Research Funding; Acerta Pharma: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; F. Hoffman-La Roche: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau; Kite: Consultancy; Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Gilead: Honoraria, Research Funding; Pfizer: Research Funding. MacEwan:Consultant Radiologist/ Nuc Med Physician: Consultancy. Owen:Pharmacyclics: Research Funding; F. Hoffmann-La Roche Ltd: Honoraria, Research Funding; Celgene: Research Funding; AstraZeneca: Honoraria, Research Funding; Merck: Honoraria; Janssen: Honoraria, Research Funding; Teva: Honoraria; AbbVie: Research Funding. Ptáčník:F. Hoffman-La Roche: Honoraria. Hiddemann:F. Hoffman-La Roche: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Celgene: Consultancy, 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, Research Funding; Bayer: Consultancy, Research Funding. Marcus:Roche: Consultancy, Other: Travel support and lecture fees ; Gilead: Consultancy; F. Hoffman-La Roche: Other: Travel support and lecture fees. Nielsen:F. Hoffmann-La Roche Ltd: Employment, Other: Ownership interests PLC. Mattiello:Roche: Employment. Zeuner:F. Hoffman-La Roche: Employment, Equity Ownership. Meignan:F. Hoffman-La Roche Ltd: Honoraria.


Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 613-613 ◽  
Author(s):  
Christiane Pott ◽  
Eva Hoster ◽  
Britta Kehden ◽  
Michael Unterhalt ◽  
Michael Herold ◽  
...  

Abstract Background: Minimal residual disease (MRD) status reflects treatment efficacy and may predict prognosis after first-line therapy in patients (pts) with follicular lymphoma (FL). GALLIUM (NCT01332968) is an ongoing, randomized global Phase 3 study evaluating the efficacy and safety of obinutuzumab (GA101; GAZYVA/GAZYVARO; G) vs rituximab (R) as induction (with chemotherapy [chemo]; bendamustine, CHOP or CVP) and maintenance (in responders) in previously untreated pts with indolent non-Hodgkin lymphoma. In GALLIUM, the primary endpoint of investigator-assessed PFS in pts with FL was significantly improved with G- vs R-based treatment. We report the results of MRD assessment at mid induction (MI) and end of induction (EOI) in FL pts in GALLIUM. Methods: Diagnostic peripheral blood (PB) and bone marrow (BM) samples from FL pts were screened by consensus PCR to detect a t(14;18) translocation and/or clonal Ig variable domain rearrangement suitable for MRD assessment. In pts with a detectable clonal marker, allele- or translocation-specific real-time quantitative (RQ)-PCR assays were designed with a sensitivity ≤10-4. RQ-PCR data were evaluated by European Study Group criteria for MRD detection (van der Velden, Leukemia 2007). MRD status was assessed at MI in PB, and at EOI in PB and BM, and defined as negative (MRD response) if RQ-PCR and subsequent nested PCR were negative in all samples analyzed at the respective time point. Results: Of the 1202 FL pts enrolled in GALLIUM, 1138 provided consent for MRD analyses. Baseline PB or BM samples were available for 1101 pts; a clonal marker was detected in 968 (88%) of these pts and 815 (74%) had an RQ-PCR assay fulfilling sensitivity criteria. Pts with a detectable clonal marker had baseline characteristics comparable to pts without a marker, with the exception of higher-stage disease (61% vs 34% Ann Arbor stage IV), reflecting increased BM involvement. Among 696 pts with an available PB or BM sample at EOI, MRD response was significantly higher in the G-chemo arm than the R-chemo arm (92% vs 85%; p=0.0041; Table 1). BM clearance of residual tumor cells at EOI was higher in the G-chemo vs R-chemo arm (93% [199/214] vs 83% [165/200]; p=0.0014), whereas PB clearance at EOI was similarly high in both arms (96% [323/336] vs 94% [320/341]; p=0.22). MRD clearance occurred early during treatment: at MI, 94% of pts in the G-chemo arm achieved MRD-negative status in PB compared with 89% in the R-chemo arm (p=0.013; Table 2). The anti-lymphoma activity of G-chemo induction was confirmed by analyzing quantitative MRD data in PB at MI: all 20 (100%) pts who remained MRD-positive at MI in the G-chemo arm had low-level MRD (below the limit of quantification) compared with 24/38 (63%) pts in the R-chemo arm. The chemo backbone in the R-chemo arm affected MRD status in PB at EOI giving an MRD response rate of 96% (201/209) after R-bendamustine (B), 93% (100/108) after R-CHOP, and 79% (19/24) after R-CVP. No such effect was seen in the G-chemo arm, where MRD response rates in PB at EOI were high and similar with all three chemo regimens: 96% (187/194), 96% (105/109), and 94% (31/33), respectively. Similarly, in BM, chemo had a large influence on MRD-negative status at EOI in the R-chemo arm (87% [100/115] after R-B, 74% [55/74] after R-CHOP), but negligible impact in the G-chemo arm (93% [109/117] after G-B, 93% [76/82] after G-CHOP). Achievement of MRD negativity at EOI in PB/BM for pts with CR/PR at EOI was associated with longer subsequent PFS, with a hazard ratio of 0.35 (95% CI, 0.22, 0.56; p<0.0001; Figure 1), and comparable effects in both treatment arms. Conclusions: Data from this exploratory analysis support the potential prognostic value of MRD assessment after EOI in FL pts treated with immunochemotherapy. The higher proportion of pts achieving MRD-negative status at MI and EOI, and of pts with low-level MRD among MRD-positives at MI, in the G-chemo arm suggests that G-based induction induces rapid and more effective tumor cell clearance than R-containing therapy. G was more effective than R at enhancing the depth of response to induction therapy in PB and BM, potentially leading to a compensation of differential chemo activity. Future analyses of MRD kinetics during maintenance/follow-up will investigate the pattern and prognostic value of changes in MRD status before relapse, and further evaluate the impact of different chemo regimens. Figure 1. PFS from date of EOI sample by MRD status in PB and/or BM Figure 1. PFS from date of EOI sample by MRD status in PB and/or BM Disclosures Herold: Roche: Honoraria, Other: Grants; Genentech: Other: Grants; Celgene: Honoraria; Gilead: Other: Personal fees from member advisory board. Kneba:AbbVie: Consultancy, Honoraria, Other: Travel grants; Gilead: Consultancy, Honoraria, Other: Travel grants, Research Funding; Janssen-Cilag: Consultancy, Honoraria, Other: Travel grants; Roche: Consultancy, Honoraria, Other: Travel grants, Research Funding; Amgen: Research Funding; Glaxo-SmithKline: Other: Travel grants. Mayer:AOP Orphan Pharmaceuticals: Research Funding; Novartis: Research Funding. Danesi:F. Hoffmann-La Roche Ltd: Employment. Fingerle-Rowson:Roche: Employment, Equity Ownership. Harbron:Roche: Employment, Equity Ownership; AstraZeneca: Equity Ownership. Mundt:Roche: Employment. Marcus:Takeda: Consultancy, Speakers Bureau; Roche: Consultancy, Speakers Bureau. Hiddemann:Janssen: Membership on an entity's Board of Directors or advisory committees, Research Funding; Roche: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Gilead: Research Funding.


Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 3750-3750
Author(s):  
Jorge E. Cortes ◽  
Ricardo Pasquini ◽  
Hagop M. Kantarjian ◽  
David Joske ◽  
Luis A Meillon ◽  
...  

Abstract Abstract 3750 Background: The WORLD CML Registry is a multinational, prospective registry established to longitudinally assess global patterns of current and evolving methods for diagnosis, treatment, and clinical outcome measures in pts with CML and to compare clinical practice patterns to management recommendations provided by the European LeukemiaNet (ELN; Baccarani M, et al. J Clin Oncol. 2009;27:6041–6051). Here, we report overall efficacy and safety data from this registry, as well as clinical monitoring practices and outcomes in the subgroup of pts with CML in chronic phase (CP) treated with first-line imatinib. Methods: Pts (≥ 16 y of age) with CML in CP, accelerated phase (AP), or blast crisis (BC) within 6 mo + 2 weeks of confirmed CML diagnosis were enrolled at sites in Latin America, Asia-Pacific, the United States, Russia, Turkey, the Middle East, and Africa. Baseline demographics and medical history were collected at enrollment; disease status and management information were collected at approximate 6-mo intervals or when there was a change in disease status/management. Adverse events (AEs) were collected only if they resulted in a dose/regimen change, nonadherence to treatment, or death. Results: A total of 1837 of the 1889 pts enrolled between February 2008 and December 31, 2010, were evaluable (ie, had confirmed informed consent forms and no protocol deviations) and are the basis for this analysis. Median age was 47 y (range, 16–92 y), and 58% of pts were male. CML diagnosis was established using hematologic (91% of pts), bone marrow (82%), cytogenetic (83%), and molecular (polymerase chain reaction [PCR]; 53%) assessments. Nearly all pts (94%) were initially diagnosed in CP (Table). As of the data cutoff (December 31, 2010), median overall survival (OS) and median event-free survival (EFS) in all pts were not reached. Estimated OS and EFS rates at 3 y were 90.4% and 74.8%, respectively. AEs reported in ≥ 1% of pts were thrombocytopenia (3%) and neutropenia (2%). In the CML-CP subgroup, imatinib (Glivec®/Gleevec®) was administered as first-line therapy (in clinical practice or in a clinical trial) to 63% of pts (n = 1083). Disease burden in CML-CP pts on imatinib over time was most commonly assessed via blood counts (Table). Cytogenetic and molecular assessments were used in a minority of CML-CP pts at most time points. Only 50% of pts had a disease assessment at 3 mo (hematologic, 49%; cytogenetic, 10%; molecular, 15%). Of the pts on first-line imatinib outside of a clinical trial setting (n = 1024), 95 (9%) had their dose increased, 77 (8%) had their dose decreased, and 82 (8%) were switched to nilotinib or dasatinib. In all CML-CP pts treated with first-line imatinib, estimated OS and EFS rates at 3 y were 92.1% and 76.6%, respectively (Table). Estimated OS and EFS rates at 3 y were higher in pts who had higher imatinib exposure (treatment received ≥ 85% of total days) vs pts who received imatinib treatment on < 85% of days. Conclusions: The majority of CML-CP pts treated with first-line imatinib did not have cytogenetic or molecular assessments in accordance with current ELN recommendations, particularly at early time points. Additionally, pts who had higher drug exposure to imatinib had higher estimated OS and EFS rates at 3 y than those who did not. Disclosures: Cortes: Novartis: Consultancy, Research Funding; BMS: Consultancy, Research Funding; Pfizer: Consultancy, Research Funding; Ariad: Consultancy, Research Funding. Kantarjian:Novartis Pharmaceuticals Corp: Consultancy, Research Funding; BMS: Research Funding; Pfizer: Research Funding. Piccolo:Novartis Pharma AG: Employment. Zernovak:Novartis Pharmaceuticals Corp: Employment, Equity Ownership. Sivarathinasami:Novartis Healthcare Pvt. Ltd,: Employment. Eng:Novartis Pharmaceuticals Corp: Employment, Equity Ownership. Kim:Novartis: Consultancy, Research Funding, Speakers Bureau; BMS: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau; Pfizer: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau; ARIAD: Research Funding; II-Yang: Consultancy, Honoraria, Research Funding. Hughes:Novartis Pharmaceuticals Corp: Consultancy, Honoraria, Research Funding; Bristol Myers Squibb: Consultancy, Honoraria, Research Funding; Ariad: Consultancy; CSL: Research Funding.


Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 3026-3026 ◽  
Author(s):  
Jesús F. San-Miguel ◽  
Vania T.M. Hungria ◽  
Sung-Soo Yoon ◽  
Meral Beksac ◽  
Meletios A. Dimopoulos ◽  
...  

Abstract Introduction: Panobinostat is a potent pan-deacetylase inhibitor (pan-DACi) that targets key aberrations in multiple myeloma (MM) cell biology, including epigenetics and protein metabolism. In the phase 3 clinical trial PANORAMA 1, panobinostat in combination with bortezomib and dexamethasone (PAN-BTZ-Dex) led to a statistically significant and clinically relevant increase in progression-free survival of approximately 4 months compared with that with placebo plus bortezomib and dexamethasone (Pbo-BTZ-Dex). Further analyses of patient outcomes by prior treatment demonstrated that the magnitude of PFS benefit was greatest among patients who received at least 2 prior regimens, including bortezomib and an immunomodulatory drug (IMiD; PAN-BTZ-Dex [n = 73]: 12.5 months [95% CI, 7.3-14.0 months]; Pbo-BTZ-Dex [n = 74]: 4.7 months (95% CI, 3.7-6.1 mo; HR 0.47 [95% CI, 0.32-0.72]). These data supported the regulatory approvals of PAN-BTZ-Dex for the treatment of patients with multiple myeloma who received at least 2 prior regimens, including bortezomib and an IMiD. Here we present the final analysis of overall survival (OS) for the entire patient population and among patients who received at least 2 prior regimens, including bortezomib and an IMiD. Methods: The study design for the PANORAMA 1 trial was described previously (San-Miguel. Lancet Oncol. 2014;15:1195-206). The key secondary endpoint was OS. As of June 29, 2015, the 415 events required to conduct the final analysis of OS had been observed. Kaplan-Meier estimation was utilized for OS analyses for the entire population (N = 768), the pre-specified subgroup of patients who received prior bortezomib and IMiD (n = 193), and patients who received at least 2 prior regimens including bortezomib and an IMiD (n = 147). Results: The median OS of patients who received PAN-BTZ-Dex in the overall population was 40.3 months (95% CI, 35.0-44.8 months) vs 35.8 months (95% CI, 29.0-40.6 months) for the Pbo-BTZ-Dex arm with HR 0.94 [95% CI, 0.78-1.14], P = .5435 (Fig 1A). The percentage of patients in each arm who received post-study therapy was 37.7% in the PAN-BTZ-Dex arm and 48.8% in the Pbo-BTZ-Dex arm. The median OS of patients who received at least 2 prior lines, including bortezomib and an IMiD, was 25.5 months (95% CI, 19.6-34.3 months) in the PAN-BTZ-Dex arm vs 19.5 months (95% CI, 14.1-32.5 months) in the Pbo-BTZ-Dex arm (Fig. 1B). The proportion of patients in this subgroup who received post-study therapy was 35.6% in the PAN-BTZ-Dex arm and 66.2% in the Pbo-BTZ-Dex arm. Conclusion: For the overall PANORAMA 1 study population, patients in the PAN-BTZ-Dex arm demonstrated an increase in median OS of 4.5 months vs patients in the Pbo-BTZ-Dex arm, but this result was not statistically significant (P = .5435). Median OS was also slightly longer for the PAN-BTZ-Dex arm among the more heavily pretreated subgroup of patients who received at least 2 prior regimens, including bortezomib and an IMiD. A higher percentage of patients on the Pbo-BTZ-Dex arm received post-study therapy vs the PAN-BTZ-Dex arm, which may have confounded the OS results. In summary, PAN-BTZ-Dex demonstrates statistically significant increases in PFS vs Pbo-BTZ-Dex in patients with relapsed or relapsed and refractory MM; however, this did not translate to a statistically significant increase in OS. Future trials will plan to focus on further optimization of dose and schedule of panobinostat and bortezomib to improve outcome, as well as novel combinations with other agents, including IMiDs and next-generation proteasome inhibitors. Figure 2. Figure 2. Disclosures Beksac: Bristol-Myers Squibb: Consultancy, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Celgene: Consultancy, Speakers Bureau; Amgen: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Takeda: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; Novartis: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; Janssen-Cilag: Consultancy, Speakers Bureau. Dimopoulos:Janssen: Honoraria; Janssen-Cilag: Honoraria; Onyx: Honoraria; Amgen: Honoraria; Genesis: Honoraria; Celgene: Honoraria; Novartis: Honoraria. Jedrzejczak:Onconova: Membership on an entity's Board of Directors or advisory committees; Roche: Membership on an entity's Board of Directors or advisory committees; Pfizer: Membership on an entity's Board of Directors or advisory committees; Janssen: Membership on an entity's Board of Directors or advisory committees; Novartis: Membership on an entity's Board of Directors or advisory committees; Celgene: Membership on an entity's Board of Directors or advisory committees. Siritanaratkul:Pfizer: Research Funding; Roche: Research Funding; Novartis: Research Funding; Janssen-Cilag: Research Funding. Schlossman:Millennium: Consultancy. Hou:Novartis: Membership on an entity's Board of Directors or advisory committees. Moreau:Novartis: Honoraria, Membership on an entity's Board of Directors or advisory committees; Bristol-Myers Squibb: Honoraria, Membership on an entity's Board of Directors or advisory committees; Celgene: Honoraria, Membership on an entity's Board of Directors or advisory committees; Janssen-Cilag: Honoraria, Membership on an entity's Board of Directors or advisory committees; Millennium: Honoraria, Membership on an entity's Board of Directors or advisory committees. Lonial:Bristol-Myers Squibb: Consultancy, Research Funding; Millennium: Consultancy, Research Funding; Janssen: Consultancy, Research Funding; Novartis: Consultancy, Research Funding; Onyx: Consultancy, Research Funding; Celgene: Consultancy, Research Funding. Sopala:Novartis Pharma: Employment, Equity Ownership. Bengoudifa:Novartis: Employment. Corrado:Novartis: Employment, Equity Ownership. Richardson:Bristol-Myers Squibb: Membership on an entity's Board of Directors or advisory committees; Celgene: Membership on an entity's Board of Directors or advisory committees; Novartis: Membership on an entity's Board of Directors or advisory committees; Millennium Takeda: Membership on an entity's Board of Directors or advisory committees; Johnson & Johnson: Membership on an entity's Board of Directors or advisory committees.


Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 737-737
Author(s):  
Paul G. Richardson ◽  
Marcie Riches ◽  
Nancy A. Kernan ◽  
Joel A. Brochstein ◽  
Shin Mineishi ◽  
...  

Introduction Hepatic veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS), is a rare and potentially life-threatening complication of hematopoietic stem cell transplantation (HSCT). Severe cases, historically defined by multi-organ dysfunction (MOD), may be associated with mortality rates of >80%. There is no FDA-approved treatment for VOD/SOS. Defibrotide (DF) has a proposed mechanism of action that includes stabilization of endothelial cells and restoration of thrombo-fibrinolytic balance. Earlier analyses of a pivotal phase 3 trial of DF in VOD/SOS plus MOD (Richardson et al. Blood. 2009;114:Abstract 654) underpinned approval of DF in the EU to treat severe hepatic VOD/SOS after HSCT. Additional data were obtained at the request of US health authorities. Here we present the final analysis: day +100 survival (primary endpoint) and complete response (CR; secondary). Methods This was a multicenter, open-label, phase 3 historical control (HC) study assessing DF. Eligible patients met Baltimore VOD/SOS criteria (total bilirubin ≥2.0 mg/dL with ≥2 of: hepatomegaly, ascites, or 5% weight gain) by day +21 post-HSCT, plus MOD (renal [trebling of creatinine levels, reduced creatinine clearance, or dialysis] and/or pulmonary [oxygen saturation ≤90%, need for oxygen supplementation/ventilator dependence]) by day +28 post-HSCT. Exclusion criteria included severe graft-versus-host disease (GvHD) of liver or gut, clinically significant bleeding, or need for ≥2 pressors. HC patients were reviewed for inclusion/exclusion criteria in a sequential review of medical charts starting 6 months prior to use of DF at each site; a blinded medical review committee made the final determination of HCs unequivocally meeting criteria for VOD/SOS with MOD. DF dose was 25 mg/kg/d in 4 divided 2-hour IV infusions q6h; recommended treatment duration was ≥21 days. Primary endpoint was day +100 survival. CR by day +100 was a secondary endpoint. Treatment difference in survival and CR rates and their 95% confidence intervals were estimated using propensity-stratified and weighted (Koch-adjusted) estimates of differences in proportions that account for baseline prognostic factors of survival (ie, ventilator and/or dialysis dependency at entry, age ≤/>16 years, transplant type, and prior HSCT). Analyses included patients treated with DF and HCs. Results There were 102 patients in the DF group and 32 cases selected as HCs. Baseline characteristics were similar in the DF and HC groups: mean age (26 and 25 years; 43% and 44% ≤16 years), allogeneic graft (88% and 84%), prior HSCT (13% and 9%), ventilator- and/or dialysis-dependent at study entry (33% and 22%), myeloablative conditioning (87% and 94%), and the most common underlying diseases (acute leukemias: 45% and 47%), respectively. In the DF-treated group, common GvHD medications included tacrolimus (49%), methotrexate (41%), and cyclosporine (38%); in the HC group, common medications were cyclosporine (72%) and methotrexate (63%). Survival at day +100 in the DF and HC groups was 38% and 25%, respectively. The propensity-stratified difference in survival was 23.0% (95.1% CI, 5.2-40.8, P = .0109). Respective observed CR rates by day +100 were 25.5% and 12.5%, and the propensity-stratified difference in CR was 19.0% (95.1% CI, 3.5-34.6, P = .0160). Comparing the earlier EU and final analyses, the survival rates at day +100 in each group did not vary; however, the propensity adjusted final analysis provided a different level of statistical significance. Day +100 CR rates in the original analysis were slightly lower in both arms at 24% and 9% due to increased data capture to investigate CR; the P value was essentially unchanged. For the DF group, 45% had an adverse event (AE) at least possibly related to study drug, and 21% had a serious AE at least possibly related to study drug. In this very sick population, percentages of patients with ≥1 AE leading to death were similar between DF and HC patients (64% and 69%), as were hemorrhagic AEs (64%, 75%) and hypotension (39%, 50%). Conclusions Based on observed study data and using a propensity-adjusted rate difference estimator, patients treated with DF had a 23% reduction in risk of death by day +100 and 19% improvement in CR rate. Overall incidence of hemorrhage and fatal AEs were similar between groups with AEs consistent with those expected in this critically ill population. Support: Jazz Pharmaceuticals. Disclosures Richardson: Novartis: Membership on an entity's Board of Directors or advisory committees; Jazz Pharmaceuticals: Membership on an entity's Board of Directors or advisory committees, Research Funding; Celgene Corporation: Membership on an entity's Board of Directors or advisory committees; Gentium S.p.A.: Membership on an entity's Board of Directors or advisory committees, Research Funding; Millennium Takeda: Membership on an entity's Board of Directors or advisory committees. Off Label Use: Marizomib, pmalidomide, and low dose dexamethasone in RR MM. Defibrotide is an investigational treatment for hepatic veno-occlusive disease/sinusoidal obstruction syndrome in the United States. . Kernan:Gentium S.p.A.: Research Funding. Grupp:Novartis: Consultancy, Research Funding. Guinan:Gentium SpA/Jazz Pharmaceuticals: Other: My institution received fees for research.. Martin:Jazz Pharmaceuticals: Membership on an entity's Board of Directors or advisory committees; Gentium SpA/Jazz Pharmaceuticals: Research Funding. Steinbach:Gentium SpA/Jazz Pharmaceuticals: Research Funding. Krishnan:Celgene: Consultancy, Speakers Bureau; BMS: Consultancy; Janssen: Consultancy; Onyx: Speakers Bureau; Jazz: Consultancy; Millenium: Speakers Bureau. Giralt:SANOFI: Consultancy, Honoraria, Research Funding; CELGENE: Consultancy, Honoraria, Research Funding; AMGEN: Consultancy, Research Funding; JAZZ: Consultancy, Honoraria, Research Funding, Speakers Bureau; TAKEDA: Consultancy, Honoraria, Research Funding. Rodriguez:Gentium SpA/Jazz Pharmaceuticals: Research Funding. Doyle:Gentium SpA/Jazz Pharmaceuticals: Research Funding. Antin:Gentium SpA/Jazz Pharmaceuticals: Membership on an entity's Board of Directors or advisory committees. D'Agostino:Gentium SpA/Jazz Pharmaceuticals: Consultancy. Massaro:Gentium SpA/Jazz Pharmaceuticals: Consultancy. Miloslavsky:Jazz Pharmaceuticals: Employment, Equity Ownership. Hume:Jazz Pharmaceuticals: Employment, Equity Ownership. Iacobelli:Gentium SpA: Employment. Nejadnik:Jazz Pharmaceuticals: Employment, Equity Ownership. Hannah:Gentium SpA: Other: Personal fees during conduct of the study.. Soiffer:Gentium SpA/Jazz Pharmaceuticals: Membership on an entity's Board of Directors or advisory committees.


Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. 4248-4248 ◽  
Author(s):  
Uwe Platzbecker ◽  
David P. Steensma ◽  
Koen Van Eygen ◽  
Azra Raza ◽  
Valeria Santini ◽  
...  

Background: Current treatment options for red blood cell (RBC) transfusion-dependent (TD) patients with lower risk (LR) myelodysplastic syndromes (MDS) relapsed after or refractory to erythropoiesis-stimulating agents (ESAs) have limited efficacy and durability; new approaches are needed. Imetelstat is a 13-mer lipid-conjugated oligonucleotide that targets the RNA template of human telomerase and is a competitive inhibitor of telomerase enzymatic activity (Asai et al, Cancer Res 2003; Herbert et al, Oncogene 2005). Preclinical, in vivo xenograft models (Dikmen et al, Cancer Res 2005; Hochreiter et al, Clin Cancer Res 2006) and preliminary clinical data from a pilot study conducted at Mayo Clinic (Tefferi et al, Blood Cancer Journal 2016) supported initiation of a study in TD LR MDS patients. A Phase 2 study of imetelstat, IMerge, demonstrated an 8-week RBC transfusion independence (RBC-TI) rate of 42%, 24-week RBC-TI rate of 29%, and 68% erythroid hematologic improvement (HI-E) rate in 38 heavily TD patients (median prior RBC transfusion burden 8 units / 8 weeks over the 16 weeks pre-study period) with LR MDS. Responses were durable with median duration of 8-week RBC-TI of 85.9 weeks by Kaplan Meier estimates (range 8.0-140.9) (Steensma ASH 2018, Fenaux EHA 2019). These Phase 2 results provided further evidence of potential clinical benefit of imetelstat treatment in TD LR MDS, and supported initiation of a Phase 3 trial. Methods: IMerge is two-part, Phase 2/3 study (ClinicalTrials.gov: NCT02598661). The Phase 2 portion of the study described above is closed for enrollment. The Phase 3 portion of the study is open for enrollment of adult patients with International Prognostic Scoring System (IPSS) low or intermediate-1 risk, non-del(5q) MDS, who are TD, are relapsed after or refractory to ESAs, and have not received treatment with lenalidomide or hypomethylating agents. The study is a randomized (2:1) double-blind, placebo-controlled trial to compare efficacy of imetelstat vs. placebo that will enroll approximately 170 patients and will be conducted at approximately 90 centers in North America, Europe, Asia and Middle East. Imetelstat will be administered as 2-hour IV infusion every 4 weeks at 7.5 mg/kg. The primary endpoint of the study is to assess the rate of RBC-TI lasting ≥8 weeks. Secondary endpoints include safety, rate of RBC-TI ≥24 weeks, time to RBC-TI start, RBC-TI duration, rate of HI-E, the amount and relative change in RBC transfusions, rate of CR or PR, overall survival, progression of MDS, pharmacokinetics and effect of treatment on quality of life. Biomarkers relevant to the mechanism of action of imetelstat will be assessed to demonstrate target inhibition and their association with clinical responses. Cytogenetics and mutation analyses will be performed to evaluate the impact of imetelstat on reduction/depletion of malignant clones leading to disease modification. Disclosures Platzbecker: Novartis: Consultancy, Honoraria, Research Funding; Celgene: Consultancy, Honoraria, Research Funding; Abbvie: Consultancy, Honoraria. Steensma:Astex: Consultancy; Arrowhead: Equity Ownership; Summer Road: Consultancy; Onconova: Consultancy; Aprea: Research Funding; Pfizer: Consultancy; Stemline: Consultancy; H3 Biosciences: Other: Research funding to institution, not investigator.. Santini:Celgene Corporation: Honoraria, Membership on an entity's Board of Directors or advisory committees; Novartis: Honoraria, Membership on an entity's Board of Directors or advisory committees; Johnson & Johnson: Honoraria; Acceleron: Membership on an entity's Board of Directors or advisory committees; Amgen: Membership on an entity's Board of Directors or advisory committees; Menarini: Membership on an entity's Board of Directors or advisory committees. Germing:Novartis: Honoraria, Research Funding; Celgene: Honoraria, Research Funding; Jazz Pharmaceuticals: Honoraria; Amgen: Honoraria. Font:Celgene: Consultancy, 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; Pfizer: Membership on an entity's Board of Directors or advisory committees. Díez-Campelo:Novartis: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Celgene Corporation: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding. Patnaik:Stem Line Pharmaceuticals.: Membership on an entity's Board of Directors or advisory committees. Sherman:Geron Corporation: Employment, Equity Ownership. Dougherty:Geron Corporation: Employment, Equity Ownership. Feller:Geron Corporation: Employment. Sun:Geron Corporation: Employment, Equity Ownership. Wan:Geron Corporation: Employment, Equity Ownership. Huang:Geron Corporation: Employment, Equity Ownership. Rizo:Geron Corporation: Employment, Equity Ownership. Fenaux:Celgene Corporation: Honoraria, Research Funding; Aprea: Research Funding; Astex: Honoraria, Research Funding; Jazz: Honoraria, Research Funding.


Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. 758-758 ◽  
Author(s):  
Pieternella Lugtenburg ◽  
Rogier Mous ◽  
Michael Roost Clausen ◽  
Martine E.D. Chamuleau ◽  
Peter Johnson ◽  
...  

Introduction: CD20-specific monoclonal antibodies (mAbs) have demonstrated efficacy in the treatment of B-cell non-Hodgkin lymphomas (B-NHL); however, a significant proportion of patients (pts) present with refractory disease or will experience relapse. GEN3013 (DuoBody®-CD3×CD20) is the first subcutaneously administered IgG1 bispecific antibody (bsAb) that targets the T-cell surface antigen CD3 and the B-cell surface antigen CD20, triggering T-cell-mediated killing of B cells. In vitro, GEN3013 efficiently activates and induces cytotoxic activity of CD4+ and CD8+ T cells in the presence of B cells (Hiemstra et al. Blood 2018), and results in long-lasting depletion of B cells in cynomolgus monkeys. Subcutaneous (SC) GEN3013 in cynomolgus monkeys resulted in lower plasma cytokine levels, and similar bioavailability and B-cell depletion, compared with intravenous administration. GEN3013 has higher potency in vitro than most other CD3×CD20 bsAbs in clinical development (Hiemstra et al. HemaSphere 2019). SC GEN3013 in pts with B-NHL is being evaluated in a first-in-human, Phase 1/2 trial (NCT03625037), which comprises a dose-escalation part and a dose-expansion part. Here we report preliminary dose-escalation data. Methods: Pts with CD20+ B-NHL with relapsed, progressive, or refractory disease following anti-CD20 mAb treatment, and ECOG PS 0-2 were included. During dose escalation, pts received SC GEN3013 flat dose in 28-day cycles (q1w: cycle 1-2; q2w: cycle 3-6; q4w thereafter) until disease progression or unacceptable toxicity. Risk of cytokine release syndrome (CRS) was mitigated with the use of a priming dose and premedication with corticosteroids, antihistamines, and antipyretics. Primary endpoints were adverse events (AEs) and dose-limiting toxicities (DLTs). Secondary endpoints included pharmacokinetics (PK), immunogenicity (anti-drug antibodies [ADA]), pharmacodynamics (PD) (cytokine measures; laboratory parameters), and anti-tumor activity (tumor size reduction; objective and best response). Results: At data cut-off (June 28, 2019), 18 pts were enrolled into the dose-escalation part of the trial, with safety data available for pts receiving doses starting at 4 µg. Most pts had diffuse large B-cell lymphoma (DLBCL; n=14) and were heavily pre-treated; 10 pts had received ≥3 prior lines of therapy (overall median [range]: 3 [1-11]). The median age was 58.5 years (range: 21-80), and 13 pts were male. At a median follow-up of 1.9 months, pts received a median of 5 doses (range: 1-14); treatment is ongoing in 6 pts. Twelve pts discontinued treatment due to progressive disease. Six pts died (2 during treatment, 4 during survival follow-up), all due to disease progression and unrelated to treatment. The most common (n≥5) treatment-emergent AEs were pyrexia (n=8), local injection-site reactions (n=7), diarrhea (n=5), fatigue (n=5), and increased aspartate aminotransferase (n=5). The most common Grade (G) 3/4 AEs were anemia (n=3) and neutropenia (n=3). Despite increasing GEN3013 doses, all CRS events were non-severe (initial observation: 3/8 pts, G1: n=1, G2: n=2; following modification of premedication plan [corticosteroids for 3 days]: 6/10 pts, G1: n=4, G2: n=2). Increases in peripheral cytokine (IL6, IL8, IL10, IFNγ, TNFα) concentrations after GEN3013 dosing correlated with clinical symptoms of CRS in most pts. No pts had tumor lysis syndrome or neurological symptoms. No DLTs were observed. GEN3013 PK profiles reflect SC dosing; Cmax occurred 2-4 days after dosing. No ADAs were detected. PD effects following GEN3013 dosing were observed at dose levels as low as 40 µg and included rapid, complete depletion of circulating B cells (if present after prior anti-CD20 therapy) and peripheral T-cell activation and expansion. The first evidence of clinical activity was observed at a dose level of 120 µg, with complete metabolic response observed in a pt with DLBCL. Conclusions: Subcutaneously administered GEN3013, a potent CD3×CD20 bsAb, shows good tolerability and early evidence of clinical activity at low dose levels in heavily pretreated pts with relapsed or refractory B-NHL. All CRS events were non-severe and did not lead to discontinuation. No DLTs were observed. Dose escalation is ongoing; updated data will be presented. Dose expansion will begin upon determining the recommended Phase 2 dose (RP2D) (NCT03625037). Disclosures Lugtenburg: Janssen Cilag: Honoraria; Roche: Consultancy, Honoraria, Research Funding, Speakers Bureau; Celgene: Consultancy, Honoraria; Servier: Consultancy, Honoraria, Research Funding; Genmab: Consultancy, Honoraria; BMS: Consultancy; Takeda: Consultancy, Honoraria, Research Funding. Mous:Bristol-Myers Squibb: Honoraria; Celgene: Honoraria; Sandoz: Honoraria; Roche: Honoraria; Abbvie: Honoraria; Takeda: Honoraria, Research Funding; Janssen Cilag: Consultancy, Honoraria; MSD: Honoraria; Gilead: Consultancy, Honoraria, Research Funding. Clausen:Abbvie: Other: Travel grant to attend ASH 2019. Johnson:Boehringer Ingelheim: Honoraria; Janssen: Consultancy, Honoraria, Research Funding; Celgene: Honoraria; Epizyme: Honoraria, Research Funding; Incyte: Honoraria; Takeda: Honoraria; Genmab: Honoraria; Bristol-Myers Squibb: Honoraria; Kite: Honoraria; Novartis: Honoraria. Rule:Janssen: Consultancy, Honoraria, Research Funding; Roche: Consultancy, Honoraria, Research Funding; Astra-Zeneca: Consultancy, Honoraria; Celgene: Consultancy, Honoraria; Pharmacyclics: Consultancy, Honoraria; Gilead: Consultancy, Honoraria; Sunesis: Consultancy, Honoraria; TG Therapeutics: Consultancy, Honoraria; Napp: Consultancy; Kite: Consultancy. Oliveri:Genmab: Employment, Equity Ownership. DeMarco:Genmab: Employment, Equity Ownership. Hiemstra:Genmab: Employment, Equity Ownership, Other: Warrants. Chen:Genmab: Employment. Azaryan:Genmab: Employment. Gupta:Genmab: Employment, Equity Ownership. Ahmadi:Genmab Inc: Employment, Other: stock and/or warrants. Hutchings:Incyte: Research Funding; Roche: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Takeda: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Novartis: Research Funding; Genmab: Membership on an entity's Board of Directors or advisory committees, Research Funding; Celgene: Research Funding; Janssen: Research Funding; Pfizer: Research Funding.


Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. 4175-4175 ◽  
Author(s):  
Claire N Harrison ◽  
Aaron T. Gerds ◽  
Jean-Jacques Kiladjian ◽  
Konstanze Döhner ◽  
Sarah A Buckley ◽  
...  

Background: Myelofibrosis (MF) is a life-limiting condition with severe morbidity in advanced stages. Patients with MF and severe thrombocytopenia (platelet counts <50,000/mL) have a particularly poor prognosis, with more frequent anemia and leukopenia, higher rates of hemorrhagic and thrombotic complications, and worse overall survival (~15 months) compared to the overall MF population (Scotch AH, et al, Leuk Res. 2017; Masarova L, et al, Eur J Haematol. 2018). Moreover, effective treatment options are limited in this high-risk population as the currently approved JAK inhibitor, ruxolitinib (RUX), is associated with treatment-related thrombocytopenia and often requires dose reductions for patients with platelet counts <100,000/mL, with reduced efficacy compared to patients able to tolerate higher doses. Further, there is no approved dose of RUX for patients with platelet counts <50,000/mL, and NCCN guidelines encourage physicians to consider clinical trials for such patients given the lack of approved therapies. Pacritinib (PAC) is an oral JAK2/IRAK1 inhibitor that has demonstrated clinical activity in MF patients in two prior Phase 3 studies (PERSIST-1, PERSIST-2) as well as a Phase 2 dose-finding study (PAC203), including patients with severe thrombocytopenia. The PACIFICA trial has been designed to evaluate the efficacy and safety of PAC 200 mg BID vs. physician's choice (P/C) therapy in patients with MF and severe thrombocytopenia. Study Design and Methods: PACIFICA is a randomized, controlled Phase 3 trial of PAC vs. P/C in adult patients with primary or secondary MF who are not candidates for stem cell transplant, with DIPSS intermediate- or high-risk disease, ECOG PS ≤2, and platelet counts <50,000/mL, who have had up to 90 days of prior treatment with a JAK2 inhibitor or are JAK2 inhibitor-naïve. Additional exclusion criteria exist for patients with recent cardiac or hemorrhagic events, ejection fraction <50%, QTc >450 msec, or use of medications that increase the risk of hemorrhage or QT prolongation. On the PAC arm, patients receive continuous PAC 200mg BID. On the P/C arm, one of the following agents is selected prior to randomization: low-dose ruxolitinib (no more than 5 mg BID while platelet counts remain <50,000/mL), thalidomide, lenalidomide, corticosteroids, or hydroxyurea. The primary objective is to compare the efficacy of PAC vs. P/C based on the proportion of patients achieving a ≥35% spleen volume response (SVR) at Week 24. Secondary objectives include comparisons of the proportion of patients achieving a ≥50% reduction in total symptom score (TSS) at Week 24, overall survival, and proportion of patients who self-assess as "very much improved" or "much improved" as measured by the patient global impression of change (PGIC). Tertiary endpoints include alternative methods of evaluating SVR improvement, hematologic improvement (transfusion independence and improvement in anemia and thrombocytopenia), improvement in fatigue as measured by the PROMIS - Fatigue - Short form 7a, and changes in mutated allelic burden and gene expression (including correlation with response data). The study will enroll ~180 patients in a 2:1 ratio (PAC to P/C), which will have >80% power to achieve the primary endpoint. Enrollment is anticipated to begin in Q3 2019, as PACIFICA is expected to open as an amendment to the Phase 2 PAC203 study (NCT03165734) in select sites. Disclosures Harrison: Janssen: Speakers Bureau; Celgene: Honoraria, Speakers Bureau; CTI: Speakers Bureau; Roche: Honoraria; Gilead: Speakers Bureau; AOP: Honoraria; Promedior: Honoraria; Novartis: Honoraria, Research Funding, Speakers Bureau; Sierra Oncology: Honoraria. Gerds:Roche: Research Funding; CTI Biopharma: Consultancy, Research Funding; Celgene Corporation: Consultancy, Research Funding; Pfizer: Consultancy; Sierra Oncology: Research Funding; Imago Biosciences: Research Funding; Incyte: Consultancy, Research Funding. Kiladjian:Novartis: Honoraria, Research Funding; Celgene: Consultancy; AOP Orphan: Honoraria, Research Funding. Döhner:Daiichi: Honoraria; Jazz: Honoraria; Novartis: Honoraria; Celgene: Honoraria; Janssen: Honoraria; CTI Biopharma: Consultancy, Honoraria. Buckley:CTI BioPharma: Employment, Equity Ownership. Smith:CTI BioPharma: Employment, Equity Ownership. Craig:CTI BioPharma: Employment, Equity Ownership, Membership on an entity's Board of Directors or advisory committees. Mascarenhas:Incyte: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Novartis: Research Funding; Roche: Consultancy, Research Funding; Merck: Research Funding; Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; CTI Biopharma: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Janssen: Research Funding; Promedior: Research Funding; Merus: Research Funding; Pharmaessentia: Consultancy, Membership on an entity's Board of Directors or advisory committees. Verstovsek:Incyte: Research Funding; Celgene: Consultancy, Research Funding; Novartis: Consultancy, Research Funding; Sierra Oncology: Research Funding; Pharma Essentia: Research Funding; Gilead: Research Funding; Promedior: Research Funding; CTI BioPharma Corp: Research Funding; Genetech: Research Funding; Blueprint Medicines Corp: Research Funding; Astrazeneca: Research Funding; Ital Pharma: Research Funding; Protaganist Therapeutics: Research Funding; Constellation: Consultancy; Pragmatist: Consultancy; NS Pharma: Research Funding; Roche: Research Funding.


Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 1437-1437 ◽  
Author(s):  
Uma Borate ◽  
Amir T. Fathi ◽  
Bijal D. Shah ◽  
Daniel J. DeAngelo ◽  
Lewis B. Silverman ◽  
...  

Abstract Background CD19, a member of the immunoglobulin superfamily, is a B-cell specific marker that is found on B cells as early as the pro-B cell stage. CD19 is maintained upon malignant transformation and is expressed in the majority of patients with B-lineage leukemia and non-Hodgkin lymphoma (NHL). SGN-CD19A is a novel antibody-drug conjugate composed of a humanized anti-CD19 monoclonal antibody conjugated to the microtubule-disrupting agent monomethyl auristatin F (MMAF) via a maleimidocaproyl (mc) linker. Upon binding to CD19, SGN-CD19A internalizes and releases cys-mcMMAF, which binds to tubulin and induces G2/M arrest and apoptosis in the targeted cells. Methods A first-in-human, phase 1, open-label, dose-escalation study has been initiated to investigate the safety, tolerability, pharmacokinetics (PK), and antitumor activity of SGN-CD19A in adult and pediatric patients with relapsed or refractory (R/R) B-cell leukemia or highly aggressive B-cell lymphoma (CT.gov NCT01786096). Eligible patients must have a pathologically confirmed diagnosis of B-cell acute leukemia (B-ALL), Burkitt leukemia or lymphoma, or B-cell lymphoblastic lymphoma (B-LBL), and be R/R to at least 1 (adults) or 2 (pediatric) prior systemic regimens. A modified continual reassessment method is being used for dose allocation and maximum tolerated dose (MTD) estimation. SGN-CD19A is administered IV on Days 1 and 8 of 21-day cycles at up to 7 cohort-specific doses (0.3–2.3 mg/kg). Results Thirteen patients (11 adults, 2 pediatric) with R/R leukemia (9 B-ALL) or lymphoma (3 B-LBL, 1 Burkitt lymphoma) have been treated in this ongoing study. Adults (73% female) have a median age of 60 years (range, 26–74) and have received a median of 2 prior systemic therapies (range, 1–6). Four of the 11 adults (36%) have also received an allogeneic stem cell transplant (SCT). The pediatric patients, 2 females 13-and 14-years-old, have each received 3 prior systemic therapies; one of the pediatric patients has also received 2 allogeneic SCTs. To date, patients have been treated at 0.3 mg/kg (2 patients), 0.6 mg/kg (3 patients), 1.0 mg/kg (3 patients), and 1.3 mg/kg (5 patients). The maximum number of cycles received by a patient is 7. Four patients remain on treatment and 9 patients have discontinued treatment (7 due to progressive disease, 1 because of investigator decision, and 1 due to death). One patient with B-ALL treated at 1.0 mg/kg developed cardiac arrest in the setting of pre-existing electrolyte abnormalities and died 7 days after the first dose of SGN-CD19A; although this event was considered unrelated to study drug by the investigator, a possible relationship could not be excluded due to temporal association. Treatment-emergent adverse events reported for ≥10% of adult patients were nausea (64%); fatigue and pyrexia (55% each); chills (36%); headache (27%); and dyspnea, hypertension, oral pain, thrombocytopenia, tumor lysis syndrome, and vomiting (18% each). Drug-related AEs in adult patients were pyrexia (55%); nausea (45%); chills (36%); fatigue (27%); and headache, oral pain, and blurred vision (9% each). Drug-related AEs reported for the pediatric patients were abdominal pain, cough, diarrhea, dyspepsia, hyperuricemia, nausea, peripheral neuropathy, pruritus, pyrexia, tachycardia, and urticaria (all Grade 1 or 2, each in one patient). Preliminary data demonstrate rapid clearance of antibody-drug conjugate at low doses in patients with leukemia, suggesting target-mediated drug disposition. To date, best responses for patients with lymphoma are stable disease (2 patients) and progressive disease (2 patients). Best responses for the 8 leukemia patients with available response assessments are complete remission (1 adult at 1.3 mg/kg); resistant disease with clinical benefit, i.e., improvement in leukemia-related symptoms (4 patients); and progressive disease (3 patients). Conclusions MTDs have not yet been identified for adult or pediatric patients and dose-escalation continues in both populations. Antitumor activity has been observed, including 1 complete remission in a heavily pretreated B-ALL patient. Nonlinear clearance of the antibody-drug conjugate in leukemia patients suggests target-mediated disposition. Updated safety, PK, and response data will be presented at the meeting. A second trial is evaluating SGN-CD19A every 3 weeks in aggressive B-cell NHL (CT.gov NCT01786135). Disclosures: Borate: Seattle Genetics, Inc.: Research Funding; Genoptix: Consultancy. Fathi:Millennium: Research Funding; Seattle Genetics, Inc.: Advisory/Scientific board membership Other, Research Funding; Agios: Membership on an entity’s Board of Directors or advisory committees; Teva: Membership on an entity’s Board of Directors or advisory committees. Shah:Seattle Genetics, Inc.: Research Funding; NCCN: Membership on an entity’s Board of Directors or advisory committees; SWOG: Membership on an entity’s Board of Directors or advisory committees; Celgene: Speakers Bureau; Janssen/Pharmacyclics: Speakers Bureau. DeAngelo:Seattle Genetics, inc.: Research Funding. Silverman:Seattle Genetics, Inc.: Advisory/scientific board membership Other. Cooper:Seattle Genetics, Inc.: Research Funding. Albertson:Seattle Genetics, Inc.: Employment, Equity Ownership. O'Meara:Seattle Genetics, Inc.: Employment, Equity Ownership. Sandalic:Seattle Genetics, Inc.: Employment, Equity Ownership. Stevison:Seattle Genetics, Inc.: Employment, Equity Ownership. Chen:Seattle Genetics, Inc.: Consultancy, Research Funding, Speakers Bureau, Travel expenses Other.


Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 409-409 ◽  
Author(s):  
Valeria Santini ◽  
Antonio Almeida ◽  
Aristoteles Giagounidis ◽  
Stephanie Gröpper ◽  
Anna Jonasova ◽  
...  

Abstract Background: Treatment options for RBC-TD pts with lower-risk MDS without del(5q) who are unresponsive or refractory to ESAs are very limited. In a previous phase 2 study, MDS-002 (CC-5013-MDS-002), LEN was associated with achievement of RBC-transfusion independence (TI) ≥ 56 days in 26% of pts with IPSS Low/Int-1-risk MDS without del(5q) (Raza et al. Blood 2008;111:86-93). This international phase 3 study (CC-5013-MDS-005) compared the efficacy and safety of LEN versus PBO in RBC-TD pts with IPSS Low/Int-1-risk MDS without del(5q) unresponsive or refractory to ESAs. Methods: This multicenter, randomized, double-blind, parallel-group phase 3 study included RBC-TD pts (≥ 2 units packed RBCs [pRBCs]/28 days in the 112 days immediately prior to randomization) with IPSS Low/Int-1-risk MDS without del(5q), who were unresponsive or refractory to ESAs (RBC-TD despite ESA treatment with adequate dose and duration, or serum erythropoietin [EPO] > 500 mU/mL). Pts were randomized 2:1 to oral LEN 10 mg once daily (5 mg for pts with creatinine clearance 40–60 mL/min) or PBO. Pts with RBC-TI ≥ 56 days or erythroid response by Day 168 continued double-blind treatment until erythroid relapse, disease progression, unacceptable toxicity, or consent withdrawal. The primary endpoint was RBC-TI ≥ 56 days (defined as absence of any RBC transfusions during any 56 consecutive days). Secondary endpoints included time to RBC-TI, duration of RBC-TI, RBC-TI ≥ 168 days, progression to acute myeloid leukemia (AML; WHO criteria), overall survival (OS), and safety. Baseline bone marrow gene expression profiles were evaluated according to the Ebert signature (PloS Med 2008;5:e35) identified as predictive of LEN response. Clinical trial identifier: CT01029262. Results: The intent-to-treat population comprises 239 pts (LEN, n = 160; PBO, n = 79). Baseline characteristics were comparable across treatment groups; median age 71 years (range 43–87), 67.8% male, and median time from diagnosis 2.6 years (range 0.1–29.6). Pts received a median of 3.0 pRBC units/28 days (range 1.5–9.8) and 83.7% received prior therapy, including ESAs (78.7%). Significantly more LEN pts achieved RBC-TI ≥ 56 days versus PBO (26.9% vs 2.5%; P < 0.001; Table). The majority (90%) of pts with RBC-TI ≥ 56 days responded within 16 weeks of treatment. Median duration of RBC-TI ≥ 56 days was 8.2 months (range 5.2–17.8). Baseline factors significantly associated with achievement of RBC-TI ≥ 56 days with LEN were: prior ESAs (vs no ESAs; P = 0.005), serum EPO ≤ 500 mU/mL (vs > 500 mU/mL; P = 0.015), < 4 pRBC units/28 days (vs ≥ 4 pRBC units/28 days; P = 0.036), and female sex (vs male; P = 0.035). RBC-TI ≥ 168 days was achieved in 17.5% and 0% of pts in the LEN and PBO groups, respectively. The incidence of AML progression (per 100 person-years) was 1.91 (95% CI 0.80–4.59) and 2.46 (95% CI 0.79–7.64) for LEN and PBO pts, respectively, with median follow-up 1.6 and 1.3 years. Death on treatment occurred in 2.5% of pts on either LEN or PBO. The follow-up period was insufficient to permit OS comparison between the 2 groups. Myelosuppression was the main adverse event (AE); in the LEN versus PBO groups, respectively, grade 3–4 neutropenia occurred in 61.9% versus 11.4% of pts, and grade 3–4 thrombocytopenia in 35.6% versus 3.8% of pts. Discontinuations due to AEs were reported in 31.9% LEN and 11.4% PBO pts; among the 51 LEN pts who discontinued due to AEs, 14 discontinuations were due to thrombocytopenia and 8 due to neutropenia. In the subset of pts evaluated for the Ebert signature (n = 203), the predictive power of the signature was not confirmed. Conclusions: LEN therapy was associated with a significant achievement of RBC-TI ≥ 56 days in 26.9% of pts with a median duration of RBC-TI of 8.2 months; 90% of pts responded within 16 weeks of treatment. These data were consistent with response rates seen in the MDS-002 trial. The overall safety profile was consistent with the known safety profile of LEN and these data suggest LEN can be safely and effectively used in this patient population. Figure 1 Figure 1. Disclosures Santini: Celgene Corporation: Honoraria; Janssen: Honoraria; Novartis: Honoraria; Glaxo Smith Kline: Honoraria. Off Label Use: Trial of Lenalidomide in non-del5q MDS. Almeida:Celgene Corporation: Consultancy, Speakers Bureau. Giagounidis:Celgene Corporation: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees. Vey:Celgene: Honoraria. Mufti:Celgene: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding. Buckstein:Celgene: Research Funding. Mittelman:Celgene: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau. Platzbecker:Celgene: Research Funding. Shpilberg:Celgene Corporation: Consultancy, Honoraria. del Canizo:Celgene Corporation: Consultancy, Research Funding. Gattermann:Celgene: Honoraria, Research Funding; Novartis: Honoraria, Research Funding. Ozawa:Celgene: Consultancy, not specified Other. Zhong:Celgene: Employment, Equity Ownership. Séguy:Celgene: Employment, Equity Ownership. Hoenekopp:Celgene: Employment, Equity Ownership. Beach:Celgene: Employment, Equity Ownership. Fenaux:Novartis: Research Funding; Janssen: Research Funding; Celgene: Research Funding.


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