Effect of Ruxolitinib On the Incidence of Splenectomy in Patients with Myelofibrosis: A Retrospective Analysis of Data From Ruxolitinib Clinical Trials.

Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 2847-2847
Author(s):  
Srdan Verstovsek ◽  
Jean-Jacques Kiladjian ◽  
Ruben A. Mesa ◽  
Alessandro M. Vannucchi ◽  
Jason Gotlib ◽  
...  

Abstract Abstract 2847 Background and Purpose: Myelofibrosis (MF) is a progressive Philadelphia-negative myeloproliferative neoplasm characterized by debilitating symptoms, massive splenomegaly, and anemia, which severely impairs quality of life. When medical therapy is not effective or tolerated, splenectomy may be required to ease symptoms in patients with symptomatic portal hypertension, massive splenomegaly, and/or frequent red blood cell transfusions (Barbui et al. J Clin Oncol. 2011;29:761–770). In a recent study (Tefferi et al. Mayo Clin Proc. 2012;87:25–33) up to 27% of patients diagnosed with MF eventually underwent splenectomy. However, splenectomy is associated with limited duration of symptom response, high rates of perioperative morbidity and mortality, and acceleration of hepatomegaly. Clinical studies in patients with MF have demonstrated that ruxolitinib, an oral JAK1/JAK2 inhibitor, provides significant and durable reductions in splenomegaly, the burden of MF-associated symptoms, and also improved quality of life. In this post hoc analysis of pooled data from these studies, we determined the incidence of splenectomy in patients treated with ruxolitinib and those who received placebo or best available therapy (BAT) to evaluate whether ruxolitinib therapy may affect the need for splenectomy. Methods: This analysis included patients who participated in the ruxolitinib phase I/II trial (N=153; Verstovsek et al. N Engl J Med. 2010;363:1117–1127); COMFORT-I, a phase III, 24-month placebo-controlled trial of ruxolitinib (N=309; Verstovsek et al. N Engl J Med. 2012;366:799–807); and COMFORT-II, a phase III, 48-month randomized trial comparing the effects of ruxolitinib and BAT (N=219; Harrison et al. N Engl J Med. 2012;366:787–798). Incidence of splenectomy while on treatment or during the protocol-specified follow-up period, adjusted for differences in the duration of follow up, was calculated for patients on ruxolitinib, placebo, or BAT. Results: As a result of the crossover rules and a higher discontinuation rate on the comparator arms in the phase III studies, mean follow-up duration for placebo (0.67 years) or BAT (0.95 years) overall was substantially shorter than mean follow-up duration for ruxolitinib (1.78 years). Baseline characteristics of the 14 patients who underwent splenectomy were as follows: median age=63 years; median time since initial diagnosis=7.8 years; median spleen length (n=13): 17.0 cm (range: 0–28.0 cm); median spleen volume (in those with measurement, n=11)=2924 cm3 (range: 1203–6807 cm3); IPSS high risk=50%, intermediate-2 risk=43%, intermediate-1=7%. Among patients originally randomized and treated with ruxolitinib, the incidence of splenectomy was 1.1 events per 100 patient years (Table). For patients treated with placebo or BAT in the phase III studies, the incidence of splenectomy was approximately three times higher at 2.9 events per 100 patient years, despite the fact that patients on placebo or BAT were allowed to crossover to ruxolitinib if they had worsening symptomatic splenomegaly. Conclusions: Although limited by small numbers, results of this analysis suggest that ruxolitinib reduces the need for splenectomy in patients with MF. Because of crossover to ruxolitinib and higher discontinuation rates in placebo and BAT, follow-up duration was shorter in these treatment arms compared with ruxolitinib. Further, ruxolitinib treatment in crossover patients may have prevented progression of symptomatic splenomegaly in some patients who may have otherwise become candidates for splenectomy. Our analysis may underestimate the true incidence of splenectomy among patients not receiving ruxolitinib therapy and therefore, the relative reduction in splenectomy rate in patients receiving this therapy. Longer-term follow up will better define the splenectomy rate in ruxolitinib-treated patients. Disclosures: Verstovsek: Incyte Corporation: Research Funding. Kiladjian:Novartis: Membership on an entity's Board of Directors or advisory committees, Research Funding; Shire: Membership on an entity's Board of Directors or advisory committees; Incyte: Membership on an entity's Board of Directors or advisory committees; Celgene: Research Funding. Mesa:Incyte: Research Funding; Lilly: Research Funding; Sanofi: Research Funding; NS Pharma: Research Funding; YM Bioscience: Research Funding. Vannucchi:Novartis: Membership on an entity's Board of Directors or advisory committees. Gotlib:Incyte Corporation: Consultancy, Honoraria, Support for travel to meeting for the study or other purposes from Incyte Other. Kantarjian:Incyte: grant support Other. Sirulnik:Novartis: Employment, Equity Ownership. Peng:Incyte Corporation: Employment, Equity Ownership. Sandor:Incyte Corporation: An employee of Incyte and receiving stock options as part of his compensation Other, Employment. Harrison:Novartis: Honoraria, Research Funding, Speakers Bureau; YM Bioscience: Consultancy, Honoraria; Sanofi Aventis: Honoraria; Shire: Honoraria, Research Funding.

Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 3859-3859 ◽  
Author(s):  
Maria-Victoria Mateos ◽  
Paul G Richardson ◽  
Rudolf Schlag ◽  
Nuriet K Khuageva ◽  
Meletios A. Dimopoulos ◽  
...  

Abstract Abstract 3859 Poster Board III-795 The initial results of the pivotal, international, phase III VISTA trial demonstrated the superiority of bortezomib (Velcade®) plus melphalan–prednisone (VMP) versus MP alone across all efficacy end points, including overall survival (OS), in previously untreated multiple myeloma (MM) patients ineligible for high-dose therapy (San Miguel et al, N Engl J Med 2008). We conducted a planned updated survival analysis of VISTA after a median >3 years of follow-up and with the majority of patients having received subsequent therapy. We confirmed the previously demonstrated OS benefit of VMP versus MP, examined the use of subsequent therapy and its efficacy following VMP and MP, and evaluated the survival of patients who had received subsequent therapy. Patients were randomized to receive nine 6-week cycles of VMP (N=344; bortezomib 1.3 mg/m2, d 1, 4, 8, 11, 22, 25, 29, 32, cycles 1–4, d 1, 8, 22, 29, cycles 5–9; melphalan 9 mg/m2 d 1–4, prednisone 60 mg/m2, d 1–4, all cycles) or MP (N=338) alone. Response was assessed using EBMT criteria with central laboratory M-protein analysis. After disease progression, patients were followed for survival and subsequent therapy, including investigator-assessed best response to subsequent therapies. The median age of patients was 71 years, 30% were aged ≥75 years, 34% had ISS stage III MM, and 33% had β2-microglobulin >5.5 mg/L. After median follow-up of 36.7 months, there was a 35% reduced risk of death with VMP vs MP (hazard ratio [HR] 0.653, p=0.0008); median OS was not estimable vs 43.1 months, and 3-year OS rates were 68.5% vs 54.0% with VMP vs MP, respectively. This OS benefit was seen consistently across patient subgroups predefined by baseline characteristics. Within the VMP arm, OS was longer among patients aged <75 vs ≥75 years (HR 1.664, p=0.011; 3-year OS: 74.1% vs 55.5%); by contrast, there were no significant differences, although there were trends to longer OS among patients with creatinine clearance ≥60 versus <60 mL/min (HR 1.291, p=0.238; 3-year OS: 74.5% vs 63.1%) and patients with standard- vs high-risk cytogenetics (HR 1.346, p=0.399; 3-year OS 71.6% vs 56.1%). At data cut-off (16 March 2009), 178 (52%) VMP and 233 (69%) MP patients had received subsequent therapy; median time to subsequent therapy (28.1 vs 19.2 months, HR 0.527, p<0.0001) and median treatment-free interval (17.6 vs 8.4 months, HR 0.543, p<0.0001) were superior with VMP vs MP. Receipt of and response to subsequent bortezomib-, thalidomide-, and lenalidomide-based therapy are summarized in the Table. Median survival from start of subsequent therapy following VMP and MP was 30.2 vs 21.9 months (HR 0.815, p=0.21) among all patients receiving subsequent therapy. This updated analysis of VISTA confirms that VMP results in significantly longer OS compared with MP, despite 50% of MP patients being rescued with bortezomib-based therapy in the relapsed setting. VMP treatment used upfront appears more beneficial than treating with conventional agents and saving bortezomib- and other novel-agent-based treatment until relapse. Subsequent therapies appeared similarly effective in the VMP and MP arms, with our analysis also demonstrating the benefit of retreatment with bortezomib-based therapies following VMP. In addition, post-relapse survival among all patients receiving subsequent therapy appeared longer following VMP, indicating that frontline bortezomib use does not induce more resistant relapses. Table Response among patients who received subsequent therapy VMP (N=178) MP (N=233) Received subsequent therapy containing:*     Bortezomib, n (%) 43 (24) 116 (50)     Thalidomide, n (%) 81 (46) 110 (47)     Lenalidomide, n (%) 57 (32) 30 (13) Overall response rate (%) to subsequent therapy:     Bortezomib-based 47 59     Thalidomide-based 41 53     Lenalidomide-based 59 52 * Patients could have received >1 agent, either in combination or separately in different subsequent lines of therapy Disclosures: Mateos: Ortho Biotech: Honoraria, Membership on an entity's Board of Directors or advisory committees. Richardson:Millennium: Consultancy, Membership on an entity's Board of Directors or advisory committees; Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees. Dimopoulos:Millennium Pharmaceuticals, Inc.: Honoraria; Ortho-Biotech: Consultancy, Honoraria. Shpilberg:Johnson & Johnson: Membership on an entity's Board of Directors or advisory committees. Kropff:Ortho Biotech: Honoraria, Membership on an entity's Board of Directors or advisory committees. Petrucci:Janssen Cilag: Honoraria; Celgene: Honoraria. Palumbo:Janssen-Cilag: Honoraria; Celgene: Honoraria. Dmoszynska:Millennium: Research Funding. Schots:Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding. Esseltine:Millennium: Employment, Equity Ownership. Liu:Johnson & Johnson: Employment, Equity Ownership. Cakana:Johnson & Johnson: Employment, Equity Ownership. van de Velde:Johnson & Johnson: Employment, Equity Ownership. San Miguel:Millennium: Membership on an entity's Board of Directors or advisory committees; Janssen-Cilag: Membership on an entity's Board of Directors or advisory committees; Celgene: Membership on an entity's Board of Directors or advisory committees.


Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 3786-3786
Author(s):  
Johannes Oldenburg ◽  
Dimitrios Tsakiris ◽  
Cedric R. Hermans ◽  
RI Liesner ◽  
Kate Khair ◽  
...  

Abstract Introduction: Long-term, real-world data on natural history of hemophilia A patients, safety and treatment outcome are still insufficient, particularly as far as the impact of bleeding on patient lives is concerned, as most of clinical trials and PASS studies are limited in study population size and length of follow-up, often no longer than 12 months. Methods: The AHEAD study is a non-interventional, prospective long-term cohort study including severe and moderate hemophilia A patients treated with ADVATE. Study endpoints include long-term joint health outcomes, annualized (joint) bleeding rates (ABR/AJBR), factor consumption, quality of life and safety data. Globally, AHEAD aims to evaluate data on approximately 1,000 patients, with a maximum follow-up period of up to 8 years. This interim data report includes 3 years of follow-up after study start. Results: The interim data report includes 522 patients from 21 countries (German study arm is not included in this analysis), for overall 1160 patient years. Of these, 334 completed year 1, 238 year 2 and 136 year 3 study visits. Median age at screening was 17 years (min-max: 0 - 78) and 57% of patients had severe HA (FVIII<1%); 78% were on prophylaxis, 21% were on demand (OD) and 1% on ITI treatment. The median ABRs in year 1, 2 and 3 were 1.2/1.2/1.9 respectively in patients on prophylaxis and 8.4/10.0/7.2, respectively in patients on OD. Median AJBRs were 0.9/0.9/1.0 in the prophylaxis group and 6.4/5.5/5.9 for patients on OD in the first three years of observation. Very similar data were reported taking only severe hemophilia A patients on prophylaxis into account (ABR: 1.9/1.7/2.5 and AJBR: 1.0/1.0/1.1) Overall, 56% of patients on prophylaxis and 32% of patients OD had an AJBR <1 in the first year, 54% and 33% in the second year and 52% and 22% in the third year. In the OD group about half of the patients had an AJBR ≥ 6, in the 3 years of follow up, while only 10% of patients in the prophylaxis group. Median annualized total dose in the prophylaxis group was consistently approximately 245,000IU while the FVIII consumption in the OD group was ranging from 26,000 to 47,000. Effectiveness of prophylaxis assessed by investigators was excellent/good in 93-96% of cases in the three years of observation. Functionality assessment using the hemophilia activity level (HAL) questionnaire showed a median summary score of 77.3-86.7 for patients on prophylaxis and 67.9-71.3 in patients OD over the 3 year follow up period. Differences of health related quality of life (HRQoL) as assessed by the SF-12 were found in the domain physical functioning (median score of 75-100 vs. 50-75 in patients on prophylaxis and OD, respectively) and role physical (median scores of 75 vs. 62.5-75 in patients on prophylaxis and OD, respectively). There were 7 treatment-related adverse events (AEs): 6 serious AEs (5 transient low titer inhibitors and 1 transient high titer inhibitor). The remaining non serious treatment-related adverse event was a mild allergic cutaneous reaction with rhinitis. All patients continued to receive ADVATE. Conclusion: Interim read-out of 3 year follow-up of patients enrolled in the AHEAD study show a clinically meaningful difference in ABR/AJBR, HAL, HRQoL of patients on prophylaxis or OD treatment. This study represents the largest cohort of hemophilia patients with the longest follow-up period. Disclosures Tsakiris: Baxalta, now part of Shire: Consultancy, Honoraria, Research Funding; Bayer Switzerland GmbH: Consultancy, Honoraria, Research Funding. Hermans:Baxalta, now part of Shire: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: Investigator Clinical Studies. Liesner:Baxalta, now part of Shire: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Bayer: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Octapharma: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau; Sobi: 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; BPL: Research Funding; Cangene: Research Funding; CSL Behring: Membership on an entity's Board of Directors or advisory committees. Khair:Pfizer: Research Funding; NovoNordisk: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Baxalta, now part of Shire: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: Study Investigator, Research Funding; Octapharma: Consultancy, Equity Ownership, Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: Study Investigator, Patents & Royalties, Research Funding, Speakers Bureau; Sobi/Biogen: Research Funding. Mazzucconi:Baxalta, now part of Shire: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Bayer: Speakers Bureau; NovoNordisk: Speakers Bureau; Pfizer: Speakers Bureau; Roche: Membership on an entity's Board of Directors or advisory committees; Amgen: Speakers Bureau; Novartis: Speakers Bureau; Shire: Speakers Bureau. Steinitz-Trost:Baxalta, now part of Shire: Employment. Spotts:Shire: Employment. Reininger:Baxalta, now part of Shire: Employment, Equity Ownership. Gringeri:Shire: Employment, Equity Ownership.


Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 801-801 ◽  
Author(s):  
Francisco Cervantes ◽  
Jean-Jacques Kiladjian ◽  
Dietger Niederwieser ◽  
Andres Sirulnik ◽  
Viktoriya Stalbovskaya ◽  
...  

Abstract Abstract 801 Background: Ruxolitinib is a potent JAK1 & 2 inhibitor that has demonstrated superiority over traditional therapies for the treatment of MF. In the two phase 3 COMFORT studies, ruxolitinib demonstrated rapid and durable reductions in splenomegaly and improved MF-related symptoms and quality of life. COMFORT-II is a randomized, open-label study evaluating ruxolitinib versus BAT in patients (pts) with MF. The primary and key secondary endpoints were both met: the proportion of pts achieving a response (defined as a ≥ 35% reduction in spleen volume) at wk 48 (ruxolitinib, 28.5%; BAT, 0%; P < .0001) and 24 (31.9% and 0%; P < .0001), respectively. The present analyses update the efficacy and safety findings of COMFORT-II (median follow-up, 112 wk). Methods: In COMFORT-II, 219 pts with intermediate-2 or high-risk MF and splenomegaly were randomized (2:1) to receive ruxolitinib (15 or 20 mg bid, based on baseline platelet count [100-200 × 109/L or > 200 × 109/L, respectively]) or BAT. Efficacy results are based on an intention-to-treat analysis; a loss of spleen response was defined as a > 25% increase in spleen volume over on-study nadir that is no longer a ≥ 35% reduction from baseline. Overall survival was estimated using the Kaplan-Meier method. Results: The median follow-up was 112 wk (ruxolitinib, 113; BAT, 108), and the median duration of exposure 83.3 wk (ruxolitinib, 111.4 [randomized and extension phases]; BAT, 45.1 [randomized treatment only]). Because the core study has completed, all pts have either entered the extension phase or discontinued from the study. The primary reasons for discontinuation were adverse events (AEs; ruxolitinib, 11.6%; BAT, 6.8%), consent withdrawal (4.1% and 12.3%), and disease progression (2.7% and 5.5%). Overall, 72.6% of pts (106/146) in the ruxolitinib arm and 61.6% (45/73) in the BAT arm entered the extension phase to receive ruxolitinib, and 55.5% (81/146) of those originally randomized to ruxolitinib remained on treatment at the time of this analysis. The primary reasons for discontinuation from the extension phase were progressive disease (8.2%), AEs (2.1%), and other (4.1%). Overall, 70 pts (48.3%) treated with ruxolitinib achieved a ≥ 35% reduction from baseline in spleen volume at any time during the study, and 97.1% of pts (132/136) with postbaseline assessments experienced a clinical benefit with some degree of reduction in spleen volume. Spleen reductions of ≥ 35% were sustained with continued ruxolitinib therapy (median duration not yet reached); the probabilities of maintaining the spleen response at wk 48 and 84 are 75% (95% CI, 61%-84%) and 58% (95% CI, 35%-76%), respectively (Figure). Since the last report (median 61.1 wk), an additional 9 and 12 deaths were reported in the ruxolitinib and BAT arms, respectively, resulting in a total of 20 (14%) and 16 (22%) deaths overall. Although there was no inferential statistical testing at this unplanned analysis, pts randomized to ruxolitinib showed longer survival than those randomized to BAT (HR = 0.52; 95% CI, 0.27–1.00). As expected, given the mechanism of action of ruxolitinib as a JAK1 & 2 inhibitor, the most common new or worsened grade 3/4 hematologic abnormalities during randomized treatment were anemia (ruxolitinib, 40.4%; BAT, 23.3%), lymphopenia (22.6%; 31.5%), and thrombocytopenia (9.6%; 9.6%). In the ruxolitinib arm, mean hemoglobin levels decreased over the first 12 wk of treatment and then recovered to levels similar to BAT from wk 24 onward; there was no difference in the mean monthly red blood cell transfusion rate among the ruxolitinib and BAT groups (0.834 vs 0.956 units, respectively). Nonhematologic AEs were primarily grade 1/2. Including the extension phase, there were no new nonhematologic AEs in the ruxolitinib group that were not observed previously (in ≥ 10% of pts), and only 1 pt had a new grade 3/4 AE (epistaxis). Conclusion: In COMFORT-II, ruxolitinib provided rapid and durable reductions in splenomegaly; this analysis demonstrates that these reductions are sustained over 2 years of treatment in the majority of pts. Ruxolitinib-treated pts showed longer survival than those receiving BAT, consistent with the survival advantage observed in previous (Verstovsek et al. NEJM. 2012) and current analyses of COMFORT-I, as well as with the comparison of pts of the phase 1/2 study with matched historical controls (Verstovsek et al. Blood. 2012). Disclosures: Cervantes: Sanofi-Aventis: Advisory Board, Advisory Board Other; Celgene: Advisory Board, Advisory Board Other; Pfizer: Advisory Board, Advisory Board Other; Teva Pharmaceuticals: Advisory Board, Advisory Board Other; Bristol-Myers Squibb: Speakers Bureau; Novartis: AdvisoryBoard Other, Speakers Bureau. Kiladjian:Shire: Membership on an entity's Board of Directors or advisory committees; Novartis: Membership on an entity's Board of Directors or advisory committees, Research Funding; Incyte: Membership on an entity's Board of Directors or advisory committees; Celgene: Research Funding. Niederwieser:Novartis: Speakers Bureau. Sirulnik:Novartis: Employment, Equity Ownership. Stalbovskaya:Novartis: Employment, Equity Ownership. McQuity:Novartis: Employment, Equity Ownership. Hunter:Incyte: Employment. Levy:Incyte: Employment, stock options Other. Passamonti:Celgene: Honoraria, Membership on an entity's Board of Directors or advisory committees; Sanofi: 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. Barbui:Novartis: Honoraria. Gisslinger:AOP Orphan Pharma AG: Consultancy, Speakers Bureau; Celgene: Consultancy, Research Funding, Speakers Bureau; Novartis: Consultancy, Research Funding, Speakers Bureau. Vannucchi:Novartis: Membership on an entity's Board of Directors or advisory committees. Knoops:Novartis: Consultancy, Membership on an entity's Board of Directors or advisory committees. Harrison:Shire: Honoraria, Research Funding; Sanofi: Honoraria; YM Bioscience: Consultancy, Honoraria; Novartis: Honoraria, Research Funding, Speakers Bureau.


Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 4229-4229
Author(s):  
Jatin J. Shah ◽  
Rafat Abonour ◽  
Mohit Narang ◽  
Jayesh Mehta ◽  
Howard R. Terebelo ◽  
...  

Abstract Introduction: Triplet therapies are used for treatment (Tx) of both transplant-eligible and -ineligible patients (pts) with newly diagnosed multiple myeloma (NDMM). Actual patterns and outcomes of Tx are not fully understood. Connect MM® is the first and largest multicenter, US-based, prospective observational cohort study designed to characterize Tx patterns and outcomes for pts with NDMM. This analysis describes demographic and disease characteristics of pts who received triplet Tx as an induction regimen and for whom transplant was or was not intended. The analysis explores the relationship of these factors with overall survival (OS) and other efficacy endpoints. Patients and Methods: Pts aged ≥ 18 y with NDMM within 60 days of diagnosis were eligible for enrollment regardless of disease severity, medical history, or comorbidities. Data including transplant intent (yes/no) was collected at baseline; follow-up data was collected quarterly thereafter. Based on the initial intent, 2 groups were identified: patients with intent to transplant who received transplant (TT) and pts with no intent to transplant who did not receive a transplant (NT). Triplet Tx was defined as the combination of ≥ 3 concurrent therapeutic agents in the first course of Tx (within 56 days of study entry). KM analysis adjusted for age was conducted for OS. Because decisions on use of transplant and triplet therapy are influenced by multiple factors, a multivariable Cox regression analysis was performed to evaluate the contribution of the triplet therapy (yes/no) to OS and was adjusted for other variables, including age, comorbidities, and ISS staging. Results: Between September 2009 and December 2011, 1493 pts were enrolled. This analysis was on 1436 pts: 650 pts with transplant intent and 786 pts without transplant intent. The data cutoff date was November 30, 2014, and the median follow-up for overall survival (OS) was 33.8 mos. Of pts with transplant intent, 451 (69%) received transplant (TT) and 199 (31%) did not. Of pts without transplant intent, 62 (8%) received transplant and 724 (92%) did not (NT). The abstract focuses on TT and NT groups only. NT pts tended to be older and have more advanced ISS staging and higher β2-microglobulin levels than TT pts (Table). The most common triplet regimen given during the first course treatment (within 56 days) was lenalidomide, bortezomib, and dexamethasone (RVd). RVd was administered to 34% of the NT pts (76/225) and 59% of the TT pts (152/257). The most common non-triplet regimen was bortezomib and dexamethasone (Vd), which was given to 31% of NT pts (156/499) and 38% of TT pts (73/194). Within the NT group, pts given triplet Tx had a lower risk of death than those who did not receive triplet Tx (P = .0013). The multivariable analysis found triplet Tx to be associated with a 36% reduced risk of death (hazard ratio [HR] = 0.64 [95% CI, 0.50-0.82]; P = .001). ISS disease stage (HR = 1.43 [95% CI, 1.21-1.69]; P < .001) and history of diabetes (HR = 1.38 [95% CI, 1.08-1.78]; P = .012) were negative prognostic factors for OS. Within the TT group, pts who received triplet Tx did not attain an OS benefit (P = .8993), and no baseline characteristics were significantly associated with OS. These results may be limited by other factors not considered that may have influenced physicians' choice of treatment, including the use of maintenance therapy and a short follow-up period of 33.8 months. Conclusions: Triplet Tx as a first regimen is associated with longer OS in pts without transplant intent who did not receive a transplant. RVd and Vd were the most common first Tx regimens, respectively. Continued follow-up of these pts and enrollment of an additional cohort will provide additional data with mature follow-up. Table 1. Table 1. Disclosures Shah: Bristol-Myers Squibb: Research Funding; Array: Research Funding; Novartis: Membership on an entity's Board of Directors or advisory committees, Research Funding; Onyx: Membership on an entity's Board of Directors or advisory committees, Research Funding; Celgene: Membership on an entity's Board of Directors or advisory committees, Research Funding; Millenium: Research Funding; Merck: Membership on an entity's Board of Directors or advisory committees. Abonour:Celgene: Research Funding, Speakers Bureau. Narang:Celgene: Speakers Bureau. Mehta:Celgene Corporation: Speakers Bureau. Terebelo:Millenium: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Pharmacylics: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Celgene: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau. Gasparetto:Celgene Corporation: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau; Millennium: Honoraria, Other: Export Board Committee, Speakers Bureau. Toomey:Celgene: Consultancy. Hardin:Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees. Srinivasan:Celgene Corporation: Employment, Equity Ownership. Larkins:Celgene Corporation: Employment, Equity Ownership. Nagarwala:Celgene Corporation: Employment, Equity Ownership. Rifkin:Onyx Pharmaceuticals: Consultancy, Membership on an entity's Board of Directors or advisory committees; Millennium Pharmaceuticals, Inc., Cambridge, MA, USA, a wholly owned subsidiary of Takeda Pharmaceutical Company Limited: Consultancy, Membership on an entity's Board of Directors or advisory committees; Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees.


Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 679-679 ◽  
Author(s):  
Giovanni Martinelli ◽  
Hervé Dombret ◽  
Patrice Chevallier ◽  
Oliver G. Ottmann ◽  
Nicola Goekbuget ◽  
...  

Abstract Introduction. Prognosis of patients (pts) with R/R Philadelphia chromosome-positive (Ph+) ALL is dismal despite the introduction of tyrosine kinase inhibitors (TKI) which may be used as single agents or in combination regimens. Blinatumomab is a bispecific T-cell engaging (BiTE®) antibody construct that has shown antileukemic activity. Among adults with R/R Ph-negative ALL receiving blinatumomab, 43% achieved complete remission (CR) or CR with partial hematologic recovery (CRh) during the first two cycles (Topp MS et al. Lancet Oncol 2015;16:57). We evaluated the efficacy and tolerability of blinatumomab in pts with R/R Ph+ ALL who progressed after or were intolerant to a 2nd or later (2+) generation TKI. Methods. Eligible adult pts (≥18 years) had Ph+ B-precursor ALL and had relapsed after or were refractory to at least one 2+ generation TKI; or were intolerant to 2+ generation TKI and intolerant or refractory to imatinib. All pts had to have >5% blasts in the bone marrow and Eastern Cooperative Oncology Group performance status ≤ 2. Blinatumomab was dosed by continuous IV infusion (4 weeks on/2 weeks off) for up to 5 cycles (9 μg/d on days 1-7 in cycle 1, and 28 μg/d thereafter). The primary endpoint was CR or CRh during the first two cycles; minimal residual disease (MRD) response based on RT-PCR amplification of BCR-ABL per central laboratory, relapse-free survival (RFS), overall survival (OS), and allogeneic hematopoietic stem cell transplant (alloHSCT) rate were key secondary endpoints. Complete MRD response was defined as no RT-PCR amplification of BCR-ABL at a sensitivity of 10-5. Results. Of 45 treated pts, 44 were resistant to 2+ generation TKI; one patient was resistant to imatinib and never exposed to 2+ generation TKI (protocol deviation). 53% of pts were men. Median (range) age was 55 (23-78) years (≥65 years, 27%). Ten pts (22%) had a BCR-ABL gene with T315I mutation. All pts had received prior TKI (dasatinib, 87%; ponatinib, 51%; imatinib, 56%; nilotinib, 36%; bosutinib, 2%), with 60% having received ≥ 2 prior 2+ generation TKI; most pts (96%) had received prior chemotherapy. 38% of pts had ≥ 2 prior relapses and 44% had prior alloHSCT. Efficacy outcomes for key endpoints are shown in the table. 16 pts achieved CR/CRh during the first two cycles for a response rate of 36% (95% CI: 22%, 51%); of those, 14 pts achieved CR, most of them (10/14, 71%) in cycle 1. The patient who never received 2+ generation TKI did not respond to treatment. 12 of the 14 pts (86%) with CR and two of the two pts with CRh achieved a complete MRD response. Among the 10 pts with T315I mutation, four achieved CR/CRh; all four also achieved a complete MRD response. Eight CR/CRh responders (50%) relapsed, three during treatment (including two with CR who did not achieve complete MRD response). One patient died in CR post alloHSCT. Median (95% CI) RFS was 6.7 (4.4, not estimable) months (median follow-up, 9.0 months); median OS was 7.1 (5.6, not estimable) months (median follow-up, 8.8 months). Patient incidence of grade ≥ 3 treatment-emergent adverse events (AEs) was 82%, most commonly febrile neutropenia (27%), thrombocytopenia (22%), anemia (16%), and pyrexia (11%). Five pts had fatal AEs; one (septic shock) was considered treatment-related by the investigator. Three pts discontinued because of AEs. Cytokine release syndrome (CRS) occurred in three pts (all grade 1 or 2). 21 pts (47%) had neurologic events (paraesthesia, 13%; confusional state, 11%; dizziness, 9%; tremor, 9%); three pts had grade 3 neurologic events (aphasia, hemiplegia; and depressed level of consciousness and nervous system disorder), one of which (aphasia) required treatment interruption. Conclusion. In this population of pts with R/R Ph+ ALL who have very poor prognosis after failure of 2+ generation TKI therapy, treatment with CD19-targeted immunotherapy blinatumomab as single agent showed antileukemic activity. AEs were consistent with those previously reported for pts with R/R Ph-negative ALL treated with blinatumomab. Table 1. Table 1. Disclosures Martinelli: Novartis: Speakers Bureau; BMS: Speakers Bureau; Pfizer: Consultancy, Speakers Bureau; ARIAD: Consultancy; Roche: Consultancy; MSD: Consultancy. Dombret:Amgen: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding. Ottmann:Astra Zeneca: 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; Ariad: 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, Research Funding; Pfizer: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees. Goekbuget:Bayer: Equity Ownership; Eusapharma/Jazz: Consultancy, Honoraria, Research Funding; Erytech: Consultancy; Pfizer: Consultancy, Honoraria, Research Funding; Medac: Consultancy, Honoraria, Research Funding; Novartis: Consultancy, Honoraria, Research Funding; Mundipharma: Consultancy, Honoraria, Research Funding; SigmaTau: Consultancy, Honoraria, Research Funding; Kite: Consultancy; Gilead Sciences: Consultancy; Sanofi: Equity Ownership; Amgen: Consultancy, Honoraria, Research Funding; GlaxoSmithKline: Honoraria, Research Funding; Bristol-Myers Squibb: Honoraria. Topp:Astra: Consultancy; Regeneron: Consultancy; Affimed: Consultancy, Research Funding; Roche: Consultancy, Other: Travel Support; Jazz: Consultancy; Pfizer: Consultancy; Amgen: Consultancy, Honoraria, Other: Travel Support. Fielding:Amgen: Consultancy, Honoraria. Sterling:Amgen: Employment, Equity Ownership. Benjamin:Amgen: Employment, Equity Ownership. Stein:Amgen: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Seattle Genetics: Research Funding.


Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 2000-2000
Author(s):  
Hagop Kantarjian ◽  
Pierre Fenaux ◽  
Mikkael A. Sekeres ◽  
Jeffrey Szer ◽  
Uwe Platzbecker ◽  
...  

Abstract Background: Thrombocytopenia occurs in ~50% of patients with low/int-1 risk myelodysplastic syndrome (MDS) and is associated with reduced survival. In a placebo (PBO)-controlled study, 250 patients with MDS were randomized 2:1 to receive weekly romiplostim or PBO. In the original June 2011 analysis, romiplostim reduced clinically significant bleeding events [hazard ratio (HR) romiplostim vs PBO 0.83, 95% CI: 0.66−1.05, P = 0.13] and platelet transfusions (relative risk 0.77, 95% CI: 0.66−0.88, P<0.001) and increased IWG hematologic improvement platelets (HI-P) incidence (odds ratio 15.6, 95% CI: 4.7−51.8, P<0.001). Peripheral blast count increases >10% were more frequent with romiplostim (25/167, 15%) than PBO (3/83, 3.6%) and resolved after discontinuation in most cases. In February 2011, the DMC recommended that treatment with study drug be discontinued as the potential benefit seen in the reduction of bleeding did not outweigh the potential risk for disease progression to AML, and that transient increases in blast cell counts might put patients at risk for diagnosis of and treatment for AML. Patients were moved into long-term follow-up (LTFU). Previously reported (Giagounidis et al, Cancer 2014) 58-week incidence of AML was 6.0% (N = 10) for romiplostim and 4.9% for PBO (N = 4); HR 1.20 (95% CI: 0.38−3.84). This report provides final 5-year LTFU data. Methods: Eligible patients were receiving only supportive care and had IPSS low/int-1 risk MDS and platelets 1) ≤20 × 109/L or 2) ≤50 × 109/L with a history of bleeding. Disease progression to AML was defined as 1) ≥20% blasts in bone marrow or peripheral blood after 4 weeks following discontinuation of romiplostim; 2) pathology consistent with leukemia; or 3) antileukemic treatment. Results are presented by treatment group. Results: At baseline, median (Q1, Q3) age was 70 (61, 77) years, the majority (59%) of patients were male; 27.6% were IPSS low risk and 72.4% were int-1 risk. WHO classifications were RCMD: 67.6%, RAEB-1: 13.2%, MDS-U: 11.2%, RA: 4.4%, RCMD-RS: 2.4%, RARS: 0.8%, and RAEB-2: 0.4%. Of 250 patients in the study, 210 entered LTFU and 66 completed the 5 years of LTFU; median (Q1, Q3) follow-up was 27.5 (10.8, 58.7) months. Reasons for discontinuation (death, lost to follow-up, and consent withdrawal) during LTFU were similar in both groups. During the active study period and LTFU, death was reported in 93 (55.7%) patients in the romiplostim group and 45 (54.2%) patients in the PBO group (HR romiplostim vs PBO 1.03, 95% CI: 0.72−1.47) (Figure); mortality rates were greater in those with IPSS int-1 vs low risk for both groups (Table). AML was reported in 20 (11.9%) patients in the romiplostim group and 9 (11.0%) patients in the PBO group (HR 1.06, 95% CI: 0.48−2.33). The proportions of patients who either died or developed AML were 56.9% (N = 95) in the romiplostim group and 55.4% (N = 46) in the PBO group (HR for AML-free survival 1.04, 95% CI: 0.73−1.48) (Figure). Nearly half (N = 14, 48%) of the 29 AML cases occurred in patients who were RAEB-1 at screening (none RAEB-2), and 6 cases were diagnosed because of anti-AML treatment use alone (Table). In LTFU, patient-reported use of MDS therapy (eg, azacitidine or cyclosporine) was 42.8% (N = 59, 95% CI: 34.4%−51.5%) in the romiplostim group and 31.4% (N = 22, 95% CI: 20.9%−43.6%) in the PBO group. AML therapy (eg, chemotherapy) was used in 14 (10.2%) patients in the romiplostim group and 7 (10.0%) patients in the PBO group. Conclusions: Following the decision in 2011 to stop study drug secondary to increased AML rates at that time and transient blasts increases, final 5-year LTFU HRs (romiplostim vs placebo) for death or progression to AML, respectively, are 1.03 (95% CI: 0.72−1.47) and 1.06 (95% CI: 0.48−2.33). In conclusion, romiplostim reduced bleeding events and platelet transfusions, with no increase in AML incidence or impact on survival. Disclosures Kantarjian: Amgen Inc.: Research Funding. Fenaux:Amgen Inc.: Research Funding. Sekeres:Celgene: Membership on an entity's Board of Directors or advisory committees; Amgen Inc.: Membership on an entity's Board of Directors or advisory committees; Millenium/Takeda: Membership on an entity's Board of Directors or advisory committees. Szer:Alexion: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Alexion Australia: Consultancy, Honoraria; Amgen Inc.: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Celgene: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Shire: 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. Platzbecker:Celgene Corporation: Honoraria, Research Funding; TEVA Pharmaceutical Industries: Honoraria, Research Funding; Janssen-Cilag: Honoraria, Research Funding; Amgen: Honoraria, Research Funding; Novartis: Honoraria, Research Funding. Kuendgen:Celgene: Research Funding. Gaidano:Morphosys: 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; Karyopharm: Honoraria, Membership on an entity's Board of Directors or advisory committees; Janssen: Honoraria, Membership on an entity's Board of Directors or advisory committees; GlaxoSmithKline: Honoraria, Membership on an entity's Board of Directors or advisory committees; Amgen Inc.: Honoraria, Membership on an entity's Board of Directors or advisory committees; Celgene: Research Funding; Roche: Honoraria, Membership on an entity's Board of Directors or advisory committees. Wiktor-Jedrzejczak:Angelini: Consultancy; Novartis: Consultancy, Research Funding; Celgene: Consultancy; Janssen-Cilag: Consultancy; Novartis: Consultancy, Research Funding; BMS: Research Funding; Sandoz: Consultancy; Amgen Inc.: Research Funding. Carpenter:Amgen Inc.: Employment, Equity Ownership. Mehta:Amgen Inc.: Employment, Equity Ownership. Franklin:Amgen Inc.: Employment, Equity Ownership. Giagounidis:Amgen Inc.: Consultancy, Honoraria.


Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 2883-2883
Author(s):  
Matthew S. Davids ◽  
Andrew W. Roberts ◽  
William G. Wierda ◽  
Kathryn Humphrey ◽  
Debbie J Alter ◽  
...  

Abstract Introduction: Venetoclax is a selective, oral inhibitor of BCL2, a key regulator of the intrinsic apoptotic pathway. The dose-escalation phase 1 study of venetoclax in patients with relapsed/refractory non-Hodgkin lymphoma (NHL) enrolled 106 patients from June 2011, and the overall response rate across the entire NHL cohort was 44%. The highest response rate (75%) was seen in the 28 patients with mantle cell lymphoma (MCL) (Davids et al., J Clin Oncol. 2017). Here, we report longer-term outcomes for those patients, now with a median of 27 months (range: 0.2 - 59) follow up. Methods: Venetoclax was administered in dose cohorts ranging from a maximum dose of 300-1200 mg and continued until progressive disease (PD) or unacceptable toxicity; intra-patient dose escalation was allowed. Adverse events (AEs) were assessed by NCI-CTCAE v4.0 and responses were assessed using 2007 Cheson IWG response criteria, utilizing CT scans beginning at week 6. The data cut off for this analysis was June 4th, 2018. Results: For the 28 patients with MCL, the median age was 72 years (range: 35 - 85). They had received a median of 3 (range: 1 - 7) prior treatments; 5 patients received prior PI3K inhibitor (but no prior ibrutinib). The median time from the preceding treatment to start of venetoclax was 13 months (range: 2 - 148). The median dose of venetoclax was 400 mg/day; 25/28 received at least 400mg/day. Median time on study drug was 11 months (range: 0.2 - 59). Three patients have been on therapy for over 4 years. The overall response rate was 75%, with 6 (21%) patients achieving complete remission (CR) and 15 (54%) partial response (PR). The median duration of response was 16 months (95% CI: 4, 30) and median progression free survival was 11 months (95% CI: 5, 21) for all patients (Figure). The 2 year PFS estimate was 30% (95% CI: 14%, 47%) for all patients, 83% (95% CI: 27%, 97%) for patients who achieved CR and 14% (95% CI: 2%, 37%) for patients who achieved PR. One patient who achieved PR proceeded to allogeneic stem cell transplant and remained disease free at the last protocol defined follow-up (24 months after coming off study). Three patients developed progressive disease after receiving venetoclax for more than two years of therapy (time to progression: 31, 33, and 33 months). Two patients with CR continue on study without evidence of progression, currently at 47 and 59 months of venetoclax monotherapy. The most common (≥25% of patients with MCL) all grade treatment emergent AEs were nausea (57%), diarrhea (50%), fatigue (39%), constipation (29%) and upper respiratory infection (25%). The most common (≥10% of patients with MCL) grade 3/4 AEs were neutropenia (14%), anemia (14%), pneumonia (11%), and thrombocytopenia (11%). Biochemical tumor lysis syndrome (TLS), without accompanying clinical features, was reported in one patient considered high risk for TLS. Specific interventions were not required, and the patient continued on study drug. Conclusions: Venetoclax monotherapy leads to durable remission in a meaningful proportion of patients with pretreated MCL. Further studies in MCL are currently investigating potential biomarkers for durable response to venetoclax combination regimens, including a Phase 3 randomized study with ibrutinib (SYMPATICO, NCT03112174). Disclosures Davids: Roche/Genentech: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Astra-Zeneca: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Janssen: Consultancy, Membership on an entity's Board of Directors or advisory committees; BMS: Research Funding; Merck: Consultancy; AbbVie, Inc: Consultancy, Membership on an entity's Board of Directors or advisory committees; TG Therapeutics: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Verastem: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Pharmacyclics: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Celgene: Consultancy; MEI Pharma: Consultancy, Research Funding; Gilead: Membership on an entity's Board of Directors or advisory committees; Surface Oncology: Research Funding. Roberts:Walter and Eliza Hall: Employment, Patents & Royalties: Employee of Walter and Eliza Hall Institute of Medical Research which receives milestone and royalty payments related to venetoclax; AbbVie: Research Funding; Genentech: Research Funding; Janssen: Research Funding. Wierda:Genentech: Research Funding; AbbVie, Inc: Research Funding. Humphrey:F. Hoffmann-La Roche Ltd: Employment, Equity Ownership. Alter:AbbVie, Inc: Employment, Equity Ownership. Masud:AbbVie, Inc: Employment, Equity Ownership. Buss:Abbvie, Inc: Employment, Equity Ownership. Verdugo:AbbVie, Inc: Employment, Equity Ownership. Seymour:Janssen: Honoraria, Research Funding; Celgene: Consultancy; Genentech Inc: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; F. Hoffmann-La Roche Ltd: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; AbbVie: Consultancy, Honoraria, Research Funding.


Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 684-684 ◽  
Author(s):  
Martine Bagot ◽  
Pierluigi Porcu ◽  
Basem M. William ◽  
Maxime Battistella ◽  
Maarten Vermeer ◽  
...  

Abstract Aims: Sezary Syndrome (SS) is the most aggressive form of cutaneous T cell lymphoma (CTCL), characterized with high blood involvement and expression of Killer cell immunoglobulin like receptor 3DL2 (KIR3DL2). IPH4102 is a first-in-class monoclonal antibody that targets KIR3DL2. Very limited effective treatment options are available for SS patients with refractory disease. We conducted a phase 1 study testing IPH4102 in patients with refractory CTCL. Here we report results from the SS subset. Methods: IPH4102-101 study is a multicenter phase I trial composed of a dose escalation and cohort expansion portions that evaluated IPH4102 in patients with refractory CTCL. Key eligibility criteria included failure of ≥ 2 prior systemic therapies. KIR3DL2 testing was performed for all patients at baseline and at different time points throughout the study. IPH4102 was given Q1w x 4 weeks, followed by Q2w x 10 weeks then Q4w until disease progression or unacceptable toxicity. Primary endpoint is safety. Main 2ry endpoints include best global response (BGR) using the Olsen criteria, progression-free survival (PFS), duration of response (DOR), quality of life (QOL) and biomarker analyses. Results: The study included 35 SS patients, 20 in the dose escalation and 15 in the cohort expansion, with a median age of 70 years (37-90). Median time from initial SS diagnosis to starting IPH4012 was 22.8 months. Nineteen patients (54%) received IPH4102 as ≥ 4th line of systemic therapy and 7 (20%) were previously treated with mogamulizumab. Thirteen patients (37%) had lymph node involvement as per investigator assessment and based on radiological examination while 7 patients (20%) had evidence of large cell transformation. KIR3DL2 expression was observed in either skin or blood in 33 patients (94%) and in both in 28 patients (80%). Most common adverse events (AEs) were asthenia (26%), peripheral edema (26%), and fatigue (23%), which were all grade 1-2. Possibly related grade ≥ 3 AEs were observed in 7 patients (20%), and only 2 patients (6%) stopped treatment for an AE. Table 1 shows BGR and response by compartment. Overall response rate was 42.9% [95% CI: 28.0% - 59.1%], with median time to response of 4.8 months. Median DOR and PFS were 5.6 months [95% CI: 3.2-not reached] and 12.8 months [95% CI: 8.1-not reached], respectively. Mogamulizumab pretreated patients showed BGR, median DOR and PFS of 42.9%, 13.8 and 20.9 months, respectively. Quality of life assessment was performed using the Pruritus VAS score andSkinDex29. Patients with CR, PR or SD showed marked improvement overtime of all evaluated parameters including SkinDex29 global, symptoms, emotional, and functional scores. Biomarker analysis showed progressive decrease in CD4/CD8 ratio in responding patients. The decrease of KIR3DL2+ expressing cells in skin evaluated by immunohistochemistry at week 5 and 14 was able to predict BGR (AUC=0.749, 0.714, respectively). Figure 1 shows reduction in KIR3DL2 expressing cells at week 5 and week 14 in a patient who had PR as BGR. To date, 9 patients are still ongoing treatment. Updated clinical and correlative research analyses will be presented at the meeting. Conclusions: IPH4102 is highly effective in patients with refractory SS. It induces meaningful clinical activity and improves quality of life placing it as an encouraging treatment option for these patients. Further development in SS and other T-cell malignancies is underway. Disclosures Bagot: Actelion: Membership on an entity's Board of Directors or advisory committees; Innate Pharma: Consultancy, Equity Ownership, Membership on an entity's Board of Directors or advisory committees; Takeda: Membership on an entity's Board of Directors or advisory committees; Kyowa Kirin: Membership on an entity's Board of Directors or advisory committees. Porcu:Innate Pharma: Consultancy. Khodadoust:Innate Pharma: Research Funding. Sicard:Innate Pharma: Employment, Equity Ownership. Azim:Innate Pharma: Employment, Equity Ownership. Kim:miRagen: Research Funding; Takeda: Membership on an entity's Board of Directors or advisory committees, Research Funding; Horizon Pharma: Consultancy, Research Funding; Galderma: Research Funding; Tetralogic: Research Funding; Neumedicine: Consultancy, Research Funding; Soligenix: Research Funding; Portola: Research Funding; Forty Seven Inc: Research Funding; Seattle Genetics: Membership on an entity's Board of Directors or advisory committees; Merck: Research Funding; Medivir: Membership on an entity's Board of Directors or advisory committees; Kyowa-Kirin-Pharma: Membership on an entity's Board of Directors or advisory committees, Research Funding; Innate Pharma: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Eisai: Membership on an entity's Board of Directors or advisory committees, Research Funding.


Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 2020-2020
Author(s):  
Sutapa Sinha ◽  
Justin C Boysen ◽  
Kari G. Chaffee ◽  
Brian F Kabat ◽  
Susan L. Slager ◽  
...  

Abstract Introduction: The use of B-cell receptor (BCR) signal inhibitors-based therapies (e.g., Ibrutinib) for B-chronic lymphocytic leukemia (CLL) was initiated just a few years ago but has rapidly escalated due to their clinical efficacy and relative ease of use. However newer therapeutic approaches are needed due to multiple issues including the continued need to improve complete responses and reduce toxicity profiles. To that end our group has discovered a novel membrane target in the ubiquitous presence of Axl receptor tyrosine kinase (Axl RTK) on CLL B-cells and has reported that the Axl RTK inhibitor TP-0903 is able to induce apoptosis of CLL B-cells at nanomolar doses (Sinha, Clin Cancer Res, 2015). Given this we assessed if TP-0903 would be effective in the induction of apoptosis of leukemic B-cells from CLL patients who are currently on Ibrutinib therapy or whom have relapsed while on Ibrutinib treatment. Methods: Relapsed/refractory CLL patients (n=22) who were placed on Ibrutinib for progressive disease provided blood samples at a median of 3.2 months after Ibrutinib therapy initiation for these studies. We also obtained sequential samples on 8 patients from initial start of ibrutinib therapy and then over a 6 month follow-up period. CLL B-cells from these blood samples were subject to Ficoll separation, purified by using a Rosette Sep B-cell enrichment kit and then studied by flow cytometry to determine Axl RTK expression levels by flow cytometric analysis. Purified CLL B-cells (CD19+/CD5+) were cultured with TP-0903 in vitroat increasing doses (0.01µM - 0.50µM) for 24 hours and the LD50 dose was determined. In addition, 3 CLL patients who had been on Ibrutinib therapy and had a documented relapse were studied in similar fashion using TP-0903. LD50-sensitivity was measured. "LD50-sensitivity" was defined as an LD50 ≤0.50µM and "insensitive" was defined as an LD50 dose >0.50µM. CLL prognostic factors (e.g., FISH, IGHV mutation status, Rai stage, CD38, and CD49d) were evaluated at the time of ibrutinib treatment. Differences in factors between sensitive and insensitive cases were computed using the Kruskal-Wallis test for continuous variables and Chi-square test for categorical variables. Results: Twenty-two CLL patients (5 female, 17 male) were included in the analysis. Fourteen (64%) patients were found to be TP-0903 LD50-sensitive. Axl expression on CLL B-cells for this cohort was heterogeneous with a median of CD19+/CD5+ cells positive for Axl at 69.9% (range of 2.7-91.3%). The sensitive subjects tended to be younger with a median age at Ibrutinib treatment initiation of 62 vs 75.5 years (p=0.004). There were no significant differences in gender, FISH, IGHV mutation status, CD38, CD49d, or Rai stage between the sensitive and insensitive LD50 groups. There were no significant differences in relation to median Axl expression on CLL B-cells (sensitive: 72.6%, range: 2.7-91.3%; insensitive: 41.5%, range: 16.5-83.1%; p=0.35). The median number of treatments prior to initiation of ibrutinib did not differ between sensitivity groups (sensitive: 2.53, range: 8-10; insensitive: 43.5, range 12-20; p=0.2833). Association for ZAP70+ CLL B-cells tended to have more apoptosis induction by TP-0903 (sensitive: 84.6% ZAP70+; insensitive: 42.9% ZAP70+; p=0.052). In 8 CLL patients that were studied sequentially while on Ibrutinib continued to express Axl or increased their Axl expression (n=2) over a 3-6 month follow-up period. Three CLL patients who had relapsed on Ibrutinib were sensitive to TP-0903 with LD50 values of ≤0.50µM. Summary: Here we find that CLL B-cells from over 60% of relapsed CLL patients on Ibrutinib therapy were highly sensitive to the high-affinity Axl inhibitor TP-0903 with induction of apoptosis at nanomolar doses (≤0.50µM). The sensitivity of CLL B-cells to TP-0903 appears to be independent of Axl expression levels and of the known CLL prognostic factors but more evident for younger patients and for ZAP70+ expression status. Given this level of activity for apoptosis induction of CLL B-cells by TP-0903 encourages the further testing of this drug in clinical trials for CLL patients. Disclosures Parikh: Pharmacyclics: Honoraria, Research Funding. Shanafelt:Pharmacyclics: Research Funding; Janssen: Research Funding; Genentech: Research Funding; GlaxoSmithKline: Research Funding; Celgene: Research Funding; Cephalon: Research Funding; Hospira: Research Funding. Warner:Tolero Pharmaceuticals: Employment, Equity Ownership, Patents & Royalties. Bearss:Tolero Pharmaceuticals: Employment, Equity Ownership, Patents & Royalties. Kay:Pharmacyclics: Research Funding; Tolero Pharmaceuticals: Research Funding; Acerta: Research Funding; Gilead: Membership on an entity's Board of Directors or advisory committees; Morpho-Sys: Membership on an entity's Board of Directors or advisory committees; Infinity Pharm: Membership on an entity's Board of Directors or advisory committees; Celgene: Membership on an entity's Board of Directors or advisory committees.


Blood ◽  
2011 ◽  
Vol 118 (21) ◽  
pp. 452-452 ◽  
Author(s):  
Giuseppe Saglio ◽  
Philipp D. LeCoutre ◽  
Ricardo Pasquini ◽  
Saengsuree Jootar ◽  
Hirohisa Nakamae ◽  
...  

Abstract Abstract 452FN2 Background: In ENESTnd, pts treated with nilotinib demonstrated higher and faster rates of major molecular response (MMR, ≤ 0.1% BCR-ABLIS), deeper molecular response (MR4, ≤ 0.01%IS and MR4.5, ≤ 0.0032%IS), and complete cytogenetic responses (CCyR) along with significantly lower rates of progression to AP/BC and fewer CML-related deaths compared with imatinib by 12 and 24 mo. Here, we report data with a minimum follow-up of 24 mo; however, efficacy and safety data based on considerably longer follow-up of ≥ 36 mo will be presented. As demonstrated in IRIS and other imatinib trials, most pts who progress on imatinib do so within the first 3 years of therapy. Thus, this 36-mo update of ENESTnd will be important to further verify the benefits of nilotinib in newly-diagnosed pts. Methods: 846 adult pts with newly-diagnosed Ph+ CML-CP were randomized to nilotinib 300 mg twice daily (BID) (n = 282), nilotinib 400 mg BID (n = 281), or imatinib 400 mg once daily (QD) (n = 283). MMR, MR4, MR4.5, time to progression to AP/BC on treatment, progression-free survival (PFS) on treatment, and overall survival (OS) were evaluated. Results: By 24 mo, both doses of nilotinib demonstrated significantly higher rates of MMR, MR4, and MR4.5 vs imatinib (Table). Nilotinib-treated pts achieved median BCR-ABLIS levels of 0.09% (300 mg BID) and 0.10% (400 mg BID) by 12 mo, while this level of reduction was not observed before 24 mo on imatinib. More pts with CCyR achieved MMR at 12 and 24 mo with either dose of nilotinib vs imatinib (Table). Regardless of Sokal risk, rates of MMR and MR4.5 were higher for nilotinib at both doses vs imatinib (Table). Progression to AP/BC (excluding clonal evolution [CE]) on treatment was significantly lower for nilotinib vs imatinib (2 pts and 3 pts with nilotinib 300 mg BID [P = .0059] and 400 mg BID [P =.0196]), respectively vs 12 pts with imatinib). After achieving CCyR, 4 pts treated with imatinib progressed to AP/BC and 2 pts treated with nilotinib 400 mg BID progressed after achieving both CCyR and MMR (1 also achieved MR4). No pt who achieved MR4.5 progressed at any time. All but 1 pt who progressed to AP/BC on treatment were in the intermediate and high Sokal risk groups; 1 pt treated with nilotinib 400 mg BID progressed in the low Sokal risk group who had an E255V mutation at progression. When considering progression events of pts after discontinuation of treatment, an additional 7, 2, and 6 events (excluding CE) were observed with nilotinib 300 mg BID, nilotinib 400 mg BID and imatinib, respectively. Twice as many pts had emergent mutations on imatinib (n = 20) vs nilotinib (n = 10 on 300 mg BID; n = 8 on 400 mg BID). At 24 mo, OS remained similar in all groups, but there were fewer CML-related deaths in both nilotinib 300 mg BID (5 pts) and nilotinib 400 mg BID (3 pts) arms vs imatinib (10 pts). Both drugs were well tolerated and few new adverse events (AEs) and lab abnormalities were observed between 12- and 24-mo of follow-up. Nilotinib 300 mg BID had the fewest discontinuations due to AEs/lab abnormalities (9% vs 13% and 10% with nilotinib 400 mg BID and imatinib, respectively). Conclusions: With a minimum follow-up of 24 mo, nilotinib continued to demonstrate superiority vs imatinib with faster and deeper molecular responses and a significantly decreased risk of progression. These data support the use of nilotinib as a standard of care option in newly-diagnosed adult pts with Ph+ CML-CP. Disclosures: Saglio: Novartis Pharmaceutical: Consultancy, Speakers Bureau; Bristol-Myers Squibb: Consultancy, Speakers Bureau; Pfizer: Consultancy. Off Label Use: Nilotinib is a safe and effective treatment for patients with CML. LeCoutre:Novartis: Honoraria, Research Funding, Speakers Bureau; Bristol Myers Squibb: Honoraria. Pasquini:Novartis: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Bristol Myers Squibb: Speakers Bureau. Nakamae:Novartis: Consultancy, Research Funding, Speakers Bureau; BMS: Consultancy, Research Funding, Speakers Bureau. Flinn:nOVARTIS: Research Funding. Hochhaus:Novartis Pharmaceutical: Consultancy, Honoraria, Research Funding; Bristol Myers Squibb: Consultancy, Honoraria, Research Funding; Ariad: Consultancy, Honoraria, Research Funding; Merck: Consultancy, Honoraria, Research Funding. Hughes:Novartis: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Bristol Myers Squibb: Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Ariad: Honoraria, Membership on an entity's Board of Directors or advisory committees. Larson:Novartis Pharmaceuticals: Consultancy, Honoraria, Research Funding. Hoenekopp:Novartis Pharmaceutical: Employment, Equity Ownership. Gallagher:Novartis: Employment. Yu:Novartis: Employment, Equity Ownership. Blakesley:Novartis Pharmaceutical: Employment. Kim:BMS: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Novartis: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau; Pfizer: Membership on an entity's Board of Directors or advisory committees, Research Funding. Kantarjian:Novartis: Consultancy; Novartis: Research Funding; Pfizer: Research Funding; BMS: Research Funding.


Sign in / Sign up

Export Citation Format

Share Document