Amyloidosis Composite Response Score Incorporating the Depth of Organ Response

Abstract Background: Systemic light chain (AL) amyloidosis is a plasma cell disorder characterized by multisystem deposition of misfolded immunoglobulin light chains produced by clonal plasma cells. Hematologic and organ responses with treatment have been shown to correlate with survival as early as 3 months from initiation of first-line treatment. Our group recently developed and validated a model integrating organ and hematologic responses for assessment of treatment outcomes at 6 months. Although current organ response criteria do not consider the depth of organ response, this has been shown to have prognostic utility in newly diagnosed patients. So, we designed this study to evaluate a composite hematologic and organ scoring system that also considers the depth of organ response at 1 to 6 months from initiation of first-line treatment. Methods: We included patients with AL amyloidosis who had at least one major organ involvement (cardiac, renal and/or liver involvement) and who had not started a second line treatment by 6 months from the time of initiating first-line treatment. For each patient, we calculated an organ response score and a hematologic response score at 1, 2, 3, 4, 5, and 6 months from initiation of first-line treatment. A score was assigned for each depth of hematologic response as follows: complete response=0, very good partial response=1, partial response=2, and no response/progressive disease=3). To calculate organ response, a score was assigned to each organ based on the depth of organ response (Muchtar et al. 2018): non-evaluable=0, complete response=1, very good partial response=2, partial response=3, and no response=4. The final organ response score was obtained by calculating the average of the individual involved organ scores. We then calculated the composite hematologic and organ response (HOR) score by adding the organ and hematologic responses at each interval and compared overall survival (OS) between patients with HOR score ≤ 5 (group 1) and those with score > 5 (group 2). Results: The cohort included 730 patients diagnosed with AL amyloidosis between February 10 th, 2006 and July 9 th, 2019. Median age was 63 (IQR: 56-69), and 65% were male. The involved light chain was Lambda in 75% of cases. Cardiac, renal, and liver involvement were found in 81%, 61%, and 17% of patients, respectively. Among all patients, 28% underwent autologous stem cell transplantation during their disease course. The median follow up in the entire cohort was 7.0 (95%CI: 6.4-8.0) years and OS was 3.6 (95%CI: 2.6-4.4) years. At 1 to 4 months, we observed a statistically significant difference in OS between patients with HOR score ≤5 vs. >5. However, there was no difference in OS between the 2 groups at 5 and 6 months. These results are presented in Table 1. Conclusion: A composite hematologic and organ response score that takes into consideration the depth of organ response can discriminate 2 groups of patients with distinct survival outcomes as early as 1 month from treatment initiation and maintains its predictive ability for up to 4 months. The lack of predictive ability beyond 4 months in this study may be due to limited sample size especially in group 2 as more patients achieve deeper responses with time. This approach can provide the basis for early changes in treatment but needs validation in future studies. Figure 1 Figure 1. Disclosures Dispenzieri: Janssen: Consultancy, Research Funding; Takeda: Research Funding; Sorrento Therapeutics: Consultancy; Oncopeptides: Consultancy; Pfizer: Research Funding; Alnylam: Research Funding. Gertz: Ionis Pharmaceuticals: Other: Advisory Board; Akcea Therapeutics, Ambry Genetics, Amgen Inc, Celgene Corporation, Janssen Biotech Inc, Karyopharm Therapeutics, Pfizer Inc (to Institution), Sanofi Genzyme: Honoraria; Aurora Biopharma: Other: Stock option; Akcea Therapeutics, Alnylam Pharmaceuticals Inc, Prothena: Consultancy; AbbVie Inc, Celgene Corporation: Other: Data Safetly & Monitoring. Kapoor: Ichnos Sciences: Research Funding; Karyopharm: Consultancy; Glaxo SmithKline: Research Funding; Pharmacyclics: Consultancy; Amgen: Research Funding; Cellectar: Consultancy; Sanofi: Consultancy; BeiGene: Consultancy; Regeneron Pharmaceuticals: Research Funding; Karyopharm: Research Funding; Sanofi: Research Funding; Takeda: Research Funding; AbbVie: Research Funding. Dingli: GSK: Consultancy; Sanofi: Consultancy; Janssen: Consultancy; Novartis: Research Funding; Apellis: Consultancy; Alexion: Consultancy. Kumar: Oncopeptides: Consultancy; Merck: Research Funding; Antengene: Consultancy, Honoraria; Bluebird Bio: Consultancy; Roche-Genentech: Consultancy, Research Funding; Astra-Zeneca: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Amgen: Consultancy, Research Funding; Novartis: Research Funding; Carsgen: Research Funding; Tenebio: Research Funding; Celgene: Membership on an entity's Board of Directors or advisory committees, Research Funding; KITE: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; BMS: Consultancy, Research Funding; Abbvie: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Beigene: Consultancy; Adaptive: Membership on an entity's Board of Directors or advisory committees, Research Funding; Sanofi: Research Funding; Takeda: 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, Research Funding.

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Predictors of Early Relapse Following Initial Therapy for Systemic Immunoglobulin Light Chain Amyloidosis

Blood ◽

10.1182/blood.v128.22.2082.2082 ◽

2016 ◽

Vol 128 (22) ◽

pp. 2082-2082

Author(s):

Nidhi Tandon ◽

Surbhi Sidana ◽

Morie A. Gertz ◽

Angela Dispenzieri ◽

Martha Q. Lacy ◽

...

Keyword(s):

Board Of Directors ◽

Light Chain ◽

Research Funding ◽

Initial Therapy ◽

Al Amyloidosis ◽

Line Treatment ◽

First Line ◽

Advisory Committees ◽

Early Relapse ◽

First Line Treatment

Abstract Introduction Immunoglobulin light chain amyloidosis (AL Amyloidosis) is a monoclonal plasma cell proliferative disorder that is characterized by tissue deposits of misfolded insoluble κ or λ light chain derived amyloid fibrils, leading to organ dysfunction. The prognosis of patients depends on the number and severity of organ involvement, especially cardiac involvement. Autologous stem cell transplant (ASCT), if eligible, alkylator (melphalan) and novel drugs like proteasome inhibitors (PI) and immunomodulators (IMiD) have improved the overall survival (OS) during the past decades. But still, nearly half of the patients die within a year of diagnosis. We analyzed the factors predicting early relapse / progression or death (within 12 months) after first line therapy for systemic AL amyloidosis. Methods Clinical and laboratory data of all consecutive patients with systemic AL amyloidosis seen at Mayo Clinic within 90 days of their diagnosis, between 2006 and 2015, was collected by chart review and analyzed retrospectively. Patients who died within 3 months of starting the first line treatment were excluded from analysis. Early relapse (ER) was defined as relapse / progression requiring treatment change / re-institution or death within 12 months of starting first line treatment. Patients in the cohort with ER were compared with patients with a follow up of more than 12 months who had a relapse / progression beyond 12 months or had continuing response at the time of analysis. Categorical variables were analyzed using chi - square and Fisher's exact test and continuous variables using Kruskal- Wallis test and Wilcoxon rank sum test. Multivariate analysis was done using logistic regression model. Results Seven hundred and eighty six patients with newly diagnosed systemic AL amyloidosis met the study criteria and were included in the analysis. Among these, 230 (29.3%) patients had ER within 12 months of starting initial therapy while 556 (70.7%) patients either relapsed after 1 year or had continuing response at the time of analysis. Baseline demographics, organ involvement and type of first line therapy are presented in Table1. The median estimated follow up for the entire cohort from start of initial therapy was 62.9 months (95% CI; 59.9, 67.3). The variables included in the univariate and multivariate analyses for factors predicting ER were age at diagnosis (≤ vs > 70 years ), revised mayo stage (I and II vs III and IV), bone marrow plasma cell percentage (BMPC; ≤ 10% vs > 10%), presence of any chromosomal abnormalities, trisomies or IgH translocations by fluorescence in situ hybridization (FISH), multiorgan involvement [(>1 vs 1) (heart, liver, kidney, gastrointestinal tract, autonomic neuropathy), incorporation of ASCT in initial therapy. In univariate analysis, mayo stage (p<0.0001), multiorgan involvement (p=0.0008) and inclusion of ASCT as part of initial therapy (p<0.0001) were significantly associated with ER, while age (p=0.06), BMPC(p=0.9), FISH abnormalities (p=0.2) were not. However, in multivariate analysis, only mayo stage (III + IV vs I + II; p=0.01) and non-inclusion of ASCT in first line treatment (p=0.0001) were significantly predictive of ER. Conclusions Despite the introduction of ASCT and novel drugs, the early mortality in systemic AL amyloidosis remains high. This study demonstrates that patients with ER are older with higher prevalence of cardiac involvement and multiorgan involvement and higher Mayo stage (III and IV). Incorporation of ASCT as part of the initial therapy was associated with reduced early relapse, but it is difficult to separate the influence of the eligibility for ASCT from the effect of ASCT itself. This will help us in characterizing these patients to better understand their mechanisms of resistance to therapy and gives an insight to the type of initial therapy that benefits them. Disclosures Dispenzieri: GSK: Membership on an entity's Board of Directors or advisory committees; Jannsen: Research Funding; Prothena: Membership on an entity's Board of Directors or advisory committees; Celgene: Research Funding; Takeda: Membership on an entity's Board of Directors or advisory committees, Research Funding; Alnylam: Research Funding; pfizer: Research Funding. Kapoor:Takeda: Research Funding; Amgen: Research Funding; Celgene: Research Funding. Kumar:Celgene: Consultancy, Research Funding; Kesios: Consultancy; BMS: Consultancy; Sanofi: Consultancy, Research Funding; Noxxon Pharma: Consultancy, Research Funding; Glycomimetics: Consultancy; Millennium: Consultancy, Research Funding; Array BioPharma: Consultancy, Research Funding; Onyx: Consultancy, Research Funding; AbbVie: Research Funding; Skyline: Honoraria, Membership on an entity's Board of Directors or advisory committees; Janssen: Consultancy, Research Funding.

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Clinical and Biological Characteristics and Outcomes of Richter Transformation : A French Multicenter Study from the Filo Group

Blood ◽

10.1182/blood-2019-128053 ◽

2019 ◽

Vol 134 (Supplement_1) ◽

pp. 4112-4112

Author(s):

Charline Moulin ◽

Romain Morizot ◽

Thomas Remen ◽

Hélène Augé ◽

Florian Bouclet ◽

...

Keyword(s):

Board Of Directors ◽

Research Funding ◽

Intermediate Risk ◽

Line Treatment ◽

First Line ◽

Advisory Committees ◽

Long Term Survivors ◽

First Line Treatment

Introduction: About 2 to 10% of patients (pts) diagnosed with Chronic Lymphocytic Leukemia (CLL) develop diffuse large B-cell lymphoma (DLBCL, so-called Richter transformation (RT)) over long-term follow-up. The outcomes of pts with RT are variable and poorly understood and there is no consensus on the best therapeutic approach. The aim of this study was to analyze the clinical characteristics, outcomes and factors predictive of survival in a large series of RT from the French Innovative Leukemia Organization (FILO). Methods: Biopsy-confirmed RT (limited to DLBCL and excluding Hodgkin lymphoma) diagnosed from 2001 to 2018 were identified from eight FILO centers. Clinical and biological characteristics of CLL and RT at diagnosis, including cytogenetics, clonal relation with the pre-existing CLL, Epstein-Barr virus (EBV) status, cell of origin (COO) analyzed by immunohistochemistry and RT score (Tsimberidou AM et al, J Clin Oncol, 2006) were analyzed as well as treatment and outcomes. Overall survivals (OS) were defined as time from CLL and RT diagnosis to death from any cause and analyzed using the Kaplan-Meier method. Statistical analyses were performed with SAS version 9.4. Results: A total of 70 CLL pts who developed RT were identified. The median age at CLL diagnosis was 62 years old (range 35-82), and 50 (71.4 %) were male. The median time to transformation was 5.5 years (range 0 to 22 years), with 12 simultaneous diagnosis of CLL and RT. Prior to RT, 20 (29%) pts had not been treated for CLL, 50 received one (n=21) or more (n= 29) line of treatment ; 6 pts had received a novel agent (ibrutinib, idelalisib or venetoclax). The median age at RT diagnosis was 68 years old (range 42-88). All biopsies were centrally reviewed; 38/58 pts (66%) had elevated LDH (>1.5N) ; 35/65 pts (54 %) had bulky disease (≥ 5 cm); 10/54 (18.5%) pts had del(17p) or TP53 mutation ; 9/42 pts (21%) had a complex karyotype (at least 3 abnormalities). The CLL and RT were clonally related in 27/27 (100%) tested pts. COO by Hans algorithm was non germinal center B cell-like (GCB) in 26/28 pts (93%). EBV was positive or detected in 5/40 (12.5%) pts. The median of Ki67 positivity was 70% (range 30% to 100%). The RT score (based at RT diagnosis on ECOG performance status 2-4, LDH >1.5 x normal, platelets<100 x 109/L, tumor size >5 cm and >1 prior therapy for CLL) was : low risk in 17 pts (31%), low-intermediate risk in 10 pts (19%), high-intermediate risk in 14 pts (25%) and high risk in 14 pts (25%). The most common first-line treatment of RT was immunochemotherapy (n=57, 87%) including R-CHOP-like regimen (n=48, 73%). Autologous or allogeneic transplantation was performed for 7 pts (11%). Response to first-line treatment was complete or partial response in 26 pts (40%), and stable disease or progression in 39 pts (60%). After a median follow-up of 8 years, 51/64 pts (80%) have died. The main causes of death were progressive DLBCL (n=36, 71%), infection (n=8, 16%) or progressive CLL (n=2, 4%). The median OS of the cohort from CLL and RT diagnosis (Figure 1) were 7.8 years and 9.5 months, respectively. In univariate analysis, patients with TP53 disruption at CLL stage, low platelets count, elevated LDH, elevated beta2-microglobulin, high ECOG score, high RT score, EBV positivity and absence of response to first-line RT treatment had worse OS. The ECOG score, platelets count and TP53 disruption remain significant in multivariate Cox-regression. Last, we compared the clinical and biological parameters of two Richter groups defined as: (i) short-term survivors (<12 months, n = 34) and (ii) long-term survivors (>48 months, n = 18). Long survival was significantly associated with elevated platelets count, low LDH, low ECOG, low RT score and response to RT first-line treatment. Discussion: The clinical outcomes of RT patients is poor and novel treatment options are needed. However, a group of long-term survivors was identified, characterized by elevated platelets count, low LDH, low ECOG, low RT score and response to immunochemotherapy. Disclosures Leblond: Astra Zeneca: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Gilead: Honoraria, Speakers Bureau; Roche: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Janssen: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Abbvie: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Amgen: Honoraria, Speakers Bureau. Thieblemont:Roche: Honoraria, Research Funding; Gilead: Honoraria; Novartis: Honoraria; Kyte: Honoraria; Janssen: Honoraria; Celgene: Honoraria; Cellectis: Membership on an entity's Board of Directors or advisory committees. Cymbalista:Janssen: Honoraria; Gilead: Honoraria; AstraZeneca: Honoraria; Sunesis: Research Funding; Roche: Research Funding; Abbvie: Honoraria. Guièze:Abbvie: Honoraria; Janssen: Honoraria; Gilead: Honoraria; Roche: Honoraria. Broseus:Janssen: Honoraria; Gilead: Honoraria; Novartis: Research Funding. Feugier:gilead: Honoraria, Research Funding, Speakers Bureau; janssen: Honoraria, Research Funding, Speakers Bureau; abbvie: Honoraria, Research Funding, Speakers Bureau; roche: Honoraria, Research Funding, Speakers Bureau.

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Major Improvement of Invasive Aspergillosis Outcome Is Not Enough to Improve Overall Survival In Allogeneic Hematopoietic Stem Cell Transplant Recipients: Results From a Single-Center Retrospective Analysis

Blood ◽

10.1182/blood.v116.21.1244.1244 ◽

2010 ◽

Vol 116 (21) ◽

pp. 1244-1244

Author(s):

Géraldine Salmeron ◽

Raphaël Porcher ◽

Anne Bergeron ◽

Marie Robin ◽

Regis Peffault de Latour ◽

...

Keyword(s):

Overall Survival ◽

Board Of Directors ◽

Cumulative Incidence ◽

Research Funding ◽

Line Treatment ◽

First Line ◽

Advisory Committees ◽

Hematopoietic Stem ◽

Risk Of Death ◽

First Line Treatment

Abstract Abstract 1244 Background. Voriconazole (V) treatment has been shown to improve the 12 week (W) survival rate of hematological patients (pts) with invasive aspergillosis (IA), including recipients of allogeneic hematopoietic stem cell transplants (HSCT). We investigated whether this early survival advantage could translate into a significant increase in overall survival. Methods. We retrospectively reviewed all consecutive pts who received a transplant between Sept. 1997 and Dec. 2008 at Saint-Louis Hospital and were diagnosed as having IA. The temporal origin of the study was the date of IA diagnosis for each patient. Factors associated with survival were analyzed using Cox proportional hazard models. Separate models were estimated for survival up to 12 W and for survival between 12 W and 24 months (M) in pts surviving longer than 12 W. The deaths of pts with and without IA were analyzed with a competing risk framework. Cumulative incidence curves were compared using Gray's tests. Results. Our study examined 89 IA pts. The median follow-up was 70 M (range, 11–130 M). Two pts did not receive any antifungal treatment and were excluded from subsequent analyses. Of the 87 pts, 42 received first-line V and 45 primarily received a lipid formulation of amphotericin B (n=25), amphotericin B deoxycholate (n=10), caspofungin (n=8) or itraconazole (n=2). The primary characteristics of pts with IA and their causes of death, separated by V as first-line treatment, are shown in the table below. The median survival was 2.6 M, and the overall survival at 24 M was 19% (95% CI 12–30 M) (see figure). Overall, the survival rates of the two groups were significantly different (P= 0.010). However, the differences in survival were quite dramatic prior to 10 M, whereas both survival curves became very close after one year. At 18 M, the numbers of surviving pts were almost identical in the two groups [19% (95% CI: 11–34%) in pts who did not receive V as first-line treatment vs. 21% (95% CI 11–38%) in pts who did]. Pts who did not receive V as a first-line treatment displayed a higher probability of dying from IA than those who did (P=0.004), whereas opposite results were found for mortality in pts without IA (P=0.006). The 24-M cumulative incidence of death from IA was 47% (95% CI 31–61%) in the no V group and 19% (95% CI 9–33%) in the group treated with V. The 24-M cumulative incidence of death in pts without IA was 4% (95% CI 7–14%) in the no V group and 27% (95% CI 14–42%) in pts treated with V. The probability of death from another cause, with IA, was similar in both groups (29% vs. 36% at 24 M; P=0.46). After adjusting for donor type, conditioning regimen, progressive GVHD at diagnosis of IA and cumulated steroid dose (mg/kg) in the W preceding IA diagnosis, administration of V as first-line treatment was found to decrease the risk of death during the first 12 W by approximately 70% [HR=0.31 (95% CI 0.16–0.60); P=0.0005]. Conversely, analysis of mortality between 12 W and 24 M failed to identify any significant predictor of risk of death; however, only 24 pts died during this period. Conclusions. The finding that first-line treatment with V, which is associated with a tremendous improvement in IA outcome, does not translate into an increase in overall survival (even in the context of early diagnosis) is striking. Diagnosis of IA following HSCT, whatever the outcome, appears to be a strong marker for poor long-term prognosis. Disclosures: Bergeron: Pfizer: Speakers Bureau, none; Merck: Speakers Bureau, none; Schering: Speakers Bureau, none. Sulahian:Pfizer: Research Funding, non; Merck: Research Funding, none. Ribaud:Pfizer: Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau, none; Schering: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau, none; Gilead: Speakers Bureau, none.

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Clinicopathological Features of Nodular Sclerosis-Type Classical Hodgkin Lymphoma In the Elderly: Multicenter Study of Hodgkin Lymphoma In Japan

Blood ◽

10.1182/blood.v116.21.2677.2677 ◽

2010 ◽

Vol 116 (21) ◽

pp. 2677-2677

Author(s):

Naoko Asano ◽

Tomohiro Kinoshita ◽

Koichi Ohshima ◽

Tadashi Yoshino ◽

Nozomi Niitsu ◽

...

Keyword(s):

Board Of Directors ◽

Hodgkin Lymphoma ◽

Research Funding ◽

The Elderly ◽

Clinicopathological Features ◽

Line Treatment ◽

Classical Hodgkin Lymphoma ◽

First Line ◽

Advisory Committees ◽

First Line Treatment

Abstract Abstract 2677 Background: Classical Hodgkin lymphoma (CHL), which is characterized by the presence of Hodgkin and Reed Sternberg (H-RS) cells in a background of non-neoplastic inflammatory cells, is divided into four histological subgroups, nodular sclerosis (NSCHL), mixed cellularity (MCCHL), lymphocyte-rich, and lymphocyte depletion. While NSCHL in young adults is characterized by a mediastinal mass and good prognosis, the clinicopathological characteristics of NSCHL in the elderly (NSCHL-e) remain uncertain. Patients and methods: Enrolled patients were diagnosed with CHL between 1986 and 2006 as part of the Hodgkin Lymphoma's Multicenter Study Group. To better characterize NSCHL-e, we compared the clinicopathological profiles of 84 NSCHL-e patients aged 50 or over with 237 NSCHL-y patients aged 49 or younger and 302 with MCCHL. Results: The total of 743 CHL patients consisted of 496 men and 247 women with a median age of 48 years (range, 15– 89 years). The pathological diagnoses were NSCHL in 324 patients (43%) and MCCHL in 303 (41%). NSCHL patients showed a bimodal age distribution, with an initial peak in their 20s and a second small peak in their 60s. We categorized the former as NSCHL-y (49 or younger) and the latter as NSCHL-e (50 and over). NSCHL-e patients were characterized by male predominance and a more advanced clinical stage (53%) than NSCHL-y. Immunophenotypically, H-RS cells had the prototypic immunophenotype of CD15+ CD30+ and Pax5+. NSCHL-e cases showed a significantly higher rate of CD20 (24%) than NSCHL-y (8%, P = 0.001). Furthermore, H-RS cells in 29 of 75 (39%) patients with NSCHL-e were positive for EBV RNA transcripts by in situ hybridization, whereas only 7% of NSCHL-y cases were EBER-positive (P < 0.0001) (Table). Regarding NSCHL-e and MCCHL, no significant difference between these patients was seen in clinical characteristics. Immunophenotypically, NSCHL-e patients showed significantly higher rates for CD3 and TIA-1, while MCCHL patients showed higher EBV positivity (75%). Fifty-five of 63 patients received systemic multi-agent chemotherapy as first-line treatment, consisting of doxorubicin, bleomycin, vinblastine, and dacarbacin (ABVD) in 38 patients; CHOP in 8; C-MOPP in 8; and BEACOPP in 1. Overall, 51 patients responded to first-line treatment, 39 with complete response and 12 with partial response. Disease-specific survival of NSCHL-e was poorer than that of NSCHL-y (P < 0.001) but similar to that of MCCHL (P = 0.43) (Figure). Conclusion: NSCHL-e is characterized by an unfavorable prognosis and different clinicopathological features to NSCHL-y, which is considered as typical NSCHL. A number of cases of NSCHL-e might have been associated with MCCHL, with most being EBV-positive. These results suggest the limitations of current histological subgroupings for CHL. Disclosures: Matsushita: Pfizer CO.: Membership on an entity's Board of Directors or advisory committees, Research Funding; Baxter Co.: Membership on an entity's Board of Directors or advisory committees, Research Funding.

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Management of Steroid-Refractory Graft-Versus-Host Disease - a Survey By the Transplant Complications Working Party of the EBMT

Blood ◽

10.1182/blood-2021-152305 ◽

2021 ◽

Vol 138 (Supplement 1) ◽

pp. 2884-2884

Author(s):

Zinaida Peric ◽

Helene Schoemans ◽

Christophe Peczynski ◽

Christian Koenecke ◽

Ivan S. Moiseev ◽

...

Keyword(s):

Board Of Directors ◽

Research Funding ◽

Working Party ◽

Line Treatment ◽

Second Line ◽

Clinical Practices ◽

First Line ◽

Advisory Committees ◽

Prospective Trials ◽

First Line Treatment

Abstract Introduction: As there is limited evidence to guide management of patients with steroid-refractory graft-versus-host disease (SR-GVHD) there is a broad variability of clinical practices. To document the current practice and assess the impact of emerging new drugs in SR-GVHD, Transplant Complications Working Party (TCWP) of the EBMT performed a survey among EBMT centers that covered specific treatment decisions on first- and second-line treatment of acute and chronic GVHD (aGVHD and cGVHD). Methods: The survey was conducted from December 2020 to March 2021 among EBMT centers. A questionnaire was developed by the study authors and used for data collection. It consisted of 40 questions focused on general approach in the first-line treatment, preferred second-line treatment in SR-GVHD and ancillary care in aGVHD and cGVHD. Results: 145 centers from 33 countries agreed to participate and responded to the questionnaire. First-line treatment of aGVHD was reported as rather homogenous; with most centers (68%) starting with lower doses of corticosteroids (CS) (<2mg/kg) in lower grade aGVHD (grade 2a) and most centers (88%) starting with higher doses (2mg/kg) in aGVHD grades >2b. On the other hand, the evaluation of response to CS was more heterogeneous: at 3 days in 33%, at 5 days in 30%, at 7 days in 15% of centers and depending on severity of aGVHD in most other centers. In the presence of SR-aGVHD, 50% of centers consider inclusion of patients in clinical trials. Although as much as 85% of centers reported to have a standard operating procedure (SOP) for SR-aGVHD management, only 45% (n=66) have an established one or 2-agent second-line treatment; most frequently ruxolitinib (n=46) and/or extracorporeal photopheresis (ECP) (n=29). All other centers reported a very heterogeneous practice and listed multiple agents (range, 3-10) as second-line treatment options. In total, the most used agents for SR-aGVHD as shown in Figure 1A are ruxolitinib in 68%, ECP in 59%, mycophenolate-mofetil (MMF) in 27%, calcineurin inhibitors (CNI) in 25%, high-dose CS (>2mg/kg) in 15%, mesenchymal stem cells (MSC) in 14%, etanercept in 13%, infliximab in 11% and anti-thymocyte globulin (ATG) in 10% of centers. Clinical practice in first-line treatment of cGVHD again appeared relatively homogeneous; 58% of centers reported to treat mild forms with topical treatment only, unless affected organs could not be reached topically. In moderate/severe cGVHD, the majority (71%) of centers start with 0.5-1mg/kg of CS, in 45% with addition of CNI, while others use higher doses of CS +/- other agents. The evaluation of response was done before 4 weeks in 41% of centers, between 5-8 weeks in 41%, while a minority performed later response assessment or based the latter on organ affection/severity. In case of SR-cGVHD, 56% of centers would consider the inclusion in clinical trials, while only 65% have a SOP on management of these patients. One third of centers (35%) has an established multidisciplinary cGVHD team. Practices for SR-cGVHD again varied significantly, with most centers reporting on the use of more than 2 agents (range, 3-13) as second-line and with most applied agents as depicted in Figure 1B; ruxolitinib and ECP in 68% of centers, CNI in 40%, MMF in 37%, rituximab in 27%, imatinib in 25%, mTOR inhibitors in 23%, ibrutinib and methotrexate (MTX) in 19%, pulse of CS in 17%, MSC in 12% and PUVA therapy in 10% of centers. Conclusions:In summary, this survey revealed a rather homogenous first-line management of aGVHD and cGVHD based on steroids in the majority of centers. However, when first-line fails, the definition of SR-GVHD remains highly variable and SR-GVHD is still treated with a seemingly "trial and error" approach as demonstrated by significant variability of clinical practices among EBMT centers for second-line treatment. However, in line with recently published prospective trials, ruxolitinib comes forth as one of the most used therapeutic modalities in both SR-aGVHD and cGVHD, together with already widely administered ECP. On the contrary, ibrutinib has not emerged as standard of care in this setting. Future efforts should be invested in finding a standardized approach in SR-GVHD by directly comparing most applied second-line agents in prospective trials as well as evidence-based personalized treatment approaches. Figure 1 Figure 1. Disclosures Peric: Therakos, Servier, MSD, Astellas, Novartis, Abbvie, Pfizer: Honoraria. Schoemans: Novartis: Consultancy, Membership on an entity's Board of Directors or advisory committees, Other: personal fees , Research Funding; Incyte: Membership on an entity's Board of Directors or advisory committees, Other: Travel grants and personal fees; Gilead: Other: travel grants; CIBMTR: Consultancy, Other: travel grants; Janssen: Membership on an entity's Board of Directors or advisory committees; BHS: Membership on an entity's Board of Directors or advisory committees, Other: travel grants and personal fees , Research Funding; Jazz Pharmaceuticals: Other: personal fees; Takeda: Other: personal fees. Koenecke: Novartis: Consultancy; Janssen: Consultancy; BMS/Celgene: Consultancy; Kite/Gilead: Consultancy; EUSA Pharm: Consultancy. Basak: Saventic Health: Current holder of individual stocks in a privately-held company. Greinix: Celgene: Consultancy; Novartis: Consultancy; Sanofi: Consultancy; Takeda: Consultancy; Therakos: Consultancy. Penack: Omeros: Consultancy; Shionogi: Consultancy; Priothera: Consultancy; Incyte: Research Funding; Takeda: Research Funding; Therakos: Honoraria; Pfizer: Honoraria; Neovii: Honoraria; Novartis: Honoraria; MSD: Honoraria; Jazz: Honoraria; Gilead: Honoraria; Astellas: Honoraria.

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Optimizing Deep Response Assessment for AL Amyloidosis Using Involved Free Light Chain Level at End of Therapy

Blood ◽

10.1182/blood-2018-99-113958 ◽

2018 ◽

Vol 132 (Supplement 1) ◽

pp. 3227-3227

Author(s):

Eli Muchtar ◽

Angela Dispenzieri ◽

Nelson Leung ◽

Francis K. Buadi ◽

David Dingli ◽

...

Keyword(s):

Board Of Directors ◽

Light Chain ◽

Research Funding ◽

Response Assessment ◽

Al Amyloidosis ◽

First Line ◽

Advisory Committees ◽

First Line Therapy ◽

Line Therapy ◽

Organ Response

Abstract Introduction: Light chain burden in light chain (AL) amyloidosis is often low, making accurate response assessment challenging. Methods: AL amyloidosis patients achieving very good partial or complete response to first line therapy and had serial sFLC studies during and after completion of therapy were included (n=396). Involved free light chain (iFLC), difference in involved-to-uninvolved free light chains (dFLC) and sFLC ratio (sFLCR) were assessed at the end of first line therapy and at nadir iFLC. Survival analysis was done using the Kaplan-Meier method. Hematological progression-free survival (hemPFS) was defined as the time from diagnosis until hematological progression or death, where patients known to be alive and progression-free at the end of follow-up were censored. Hematological progression was defined according to consensus criteria or upon initiation of second line therapy, whichever came first. Results: The median iFLC and dFLC at the end of therapy was 1.7 mg/dL and 0.5 mg/dL, respectively. sFLCR normalization occurred in 70% of patients. iFLC ≤2 mg/dL and dFLC ≤0.5 mg/dL were associated with a longer hemPFS compared to their counterparts (Figure). Only iFLC ≤2 mg/dL was associated with a significantly longer overall survival (Figure). sFLCR normalization did not predict hemPFS or overall survival. Organ response was predicted by iFLC ≤2 mg/dL and dFLC ≤0.5 mg/dL (Table), with best discrimination seen with iFLC ≤2 mg/dL. Organ response was not predicted by sFLC normalization (Table). The median nadir iFLC was 1.4 mg/dL and was reached 3.9 months from the end of therapy, longer in transplanted patients compared to patients treated with non-transplant regimens (7.3 vs 1.8 months, respectively; P<0.001). iFLC ≤2 mg/dL at the completion of therapy and nadir iFLC reached >12 months from the end of therapy were favorable predictors of hemPFS/OS in a multivariate analysis. Conclusion: iFLC at the end of first line therapy better predicts for organ response and survival than dFLC among deep responders. Normalization of sFLCR does not predict for organ response or survival and should not be used as measure of therapeutic efficacy. Figure. Figure. Disclosures Dispenzieri: Celgene, Takeda, Prothena, Jannsen, Pfizer, Alnylam, GSK: Research Funding. Dingli:Alexion Pharmaceuticals, Inc.: Other: Participates in the International PNH Registry (for Mayo Clinic, Rochester) for Alexion Pharmaceuticals, Inc.; Alexion Pharmaceuticals, Inc.: Other: Participates in the International PNH Registry (for Mayo Clinic, Rochester) for Alexion Pharmaceuticals, Inc.; Millennium Takeda: Research Funding; Millennium Takeda: Research Funding. Kapoor:Celgene: Research Funding; Takeda: Research Funding. Russell:Vyriad: Equity Ownership. Kumar:Janssen: Membership on an entity's Board of Directors or advisory committees, Research Funding; KITE: 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; AbbVie: Membership on an entity's Board of Directors or advisory committees, Research Funding. Gertz:Alnylam: Honoraria; celgene: Consultancy; Ionis: Honoraria; Abbvie: Consultancy; annexon: Consultancy; janssen: Consultancy; spectrum: Consultancy, Honoraria; Research to Practice: Consultancy; Medscape: Consultancy; Apellis: Consultancy; Teva: Consultancy; Amgen: Consultancy; Prothena: Honoraria; Physicians Education Resource: Consultancy.

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An Open-Label, Randomized Study of Bendamustine and Rituximab (BR) Compared with Rituximab, Cyclophosphamide, Vincristine, and Prednisone (R-CVP) or Rituximab, Cyclophosphamide, Doxorubicin, Vincristine, and Prednisone (R-CHOP) in First-Line Treatment of Patients with Advanced Indolent Non-Hodgkin's Lymphoma (NHL) or Mantle Cell Lymphoma (MCL): The Bright Study

Blood ◽

10.1182/blood.v120.21.902.902 ◽

2012 ◽

Vol 120 (21) ◽

pp. 902-902 ◽

Cited By ~ 12

Author(s):

Ian W. Flinn ◽

Richard H. Van der Jagt ◽

Brad S. Kahl ◽

Peter Wood ◽

Tim E. Hawkins ◽

...

Keyword(s):

Respiratory Failure ◽

Board Of Directors ◽

Research Funding ◽

Standard Treatment ◽

Line Treatment ◽

First Line ◽

Advisory Committees ◽

Pharmaceutical Industries ◽

Grade 3 ◽

First Line Treatment

Abstract Abstract 902 Background Bendamustine (B) is an active agent for relapsed and refractory indolent NHL, both as monotherapy and combined with rituximab (R), results recently updated by the StiL study group. This study compared efficacy and safety of BR with standard treatment regimens of R-CHOP and R-CVP as first-line treatment for indolent NHL or MCL. Methods Patients were randomized to 6–8 cycles of BR or R-CHOP/R-CVP (R-CHOP or R-CVP determined by investigator prior to randomization). BR regimen was B 90 mg/m2/day on days 1 and 2 plus R 375 mg/m2on day 1 of a 28-day cycle. Standard dosing and 21 day cycles were used for R-CHOP and R-CVP. Primary objective was to demonstrate noninferiority of complete response (CR) rate of BR vs standard treatment (noninferiority margin [ratio] 0.88). Secondary measures included overall response rate (ORR), progression-free survival, and overall survival. Tumor response was determined by a blinded independent review committee (IRC) using International Working Group revised response criteria for malignant lymphoma. Investigator assessments were compared with those of the IRC. Results Of 447 randomized patients, 436 received treatment (BR n=221; R-CHOP/R-CVP n=215 [R-CHOP n=99; R-CVP n=116]) and were evaluable for safety. Of these, 419 patients (BR n=213; R-CHOP/R-CVP n=206 [R-CHOP 97; R-CVP n=109]) were evaluable for efficacy. The randomized groups were well matched for age (median 60 and 58 years), sex (male, 61% and 59%), ECOG status (64% performance status 0, both groups), lymphoma type (83% indolent NHL, both groups), and Ann Arbor stage (62% stage IV, both groups). Among randomized patients and efficacy evaluable patients, the IRC-assessed CR rate was numerically higher for BR than R-CHOP/R-CVP and statistically noninferior (Table). In the randomized groups, CR rates for indolent NHL were numerically similar between BR and R-CHOP/R-CVP; however, in MCL, BR was statistically superior (P=0.018) (Table). Investigator-assessed response in randomized patients found superiority of BR vs R-CHOP/R-CVP (P=0.0013). IRC and investigator assessments differed mainly in quality of response (CR vs partial) rather than in whether a patient was a responder. For randomized patients, the ORR was 94% for BR and 84% for R-CHOP/R-CVP. Time-to-event data are immature and will be analyzed later. At time of data cut-off, 8% of the BR group had progressed, relapsed, or died, compared with 4% of R-CHOP/R-CVP group. Most patients completed 6 cycles (92% for BR and 91% for R-CHOP/R-CVP), with high relative dose intensity (>96%). Dose delays were more common for BR-treated patients (35% vs 19%), and dose reductions were less common (22% vs 29%). Most common AEs for BR and R-CHOP/R-CVP, respectively, were nausea (139 vs 102 patients), fatigue (113 vs 107), neutropenia (76 vs 85), constipation (65 vs 90), and alopecia (8 vs 74). Laboratory grade 3/4 hematologic toxicities for BR and R-CHOP/R-CVP were lymphopenia (137 vs 64), neutropenia (98 vs 151), leukopenia (84 vs 116), thrombocytopenia (16 vs 15), and anemia (6 vs 9), respectively. The most frequent investigator-reported nonhematologic grade 3/4 AEs for BR and R-CHOP/R-CVP were infusion-related reaction (13 vs 8 patients). Granulocyte colony stimulating factors were given at investigator discretion (per ASCO recommendations) to 29% of the BR group and 43% of the R-CHOP/R-CVP group. Fatal AEs occurred in 6 BR patients (pneumonia, respiratory failure, and sepsis; acute respiratory failure; cardiac arrest; pneumonia; chronic obstructive pulmonary disease; lung cancer) and 1 R-CHOP/R-CVP patient (sepsis). Conclusion In patients with advanced indolent NHL and MCL, BR produces a CR rate that is noninferior to that of R-CHOP/R-CVP. In the subgroup of patients with MCL, BR produces a significantly higher CR rate (51% vs 24%). High ORRs were attained in both treatment groups. The AE profile of BR was distinct from that of R-CHOP/R-CVP. Support: Teva Pharmaceutical Industries Ltd. Disclosures: Flinn: Teva Pharmaceuticals : Research Funding. Off Label Use: Bendamustine is FDA-approved for adults with chronic lymphocytic leukemia or indolent B-cell non-Hodgkin's lymphoma that has progressed during or within six months of treatment with rituximab or a rituximab-containing regimen. Van der Jagt:Celgene: Consultancy, Research Funding, Sponsorship Other; Novartis: Consultancy, Research Funding, sponsorship, sponsorship Other; Roche: Consultancy, sponsorship, sponsorship Other; Cephalon: Consultancy, Research Funding; Incyte: Research Funding; Xanthus: Research Funding; Bristol-Myers Squibb : Consultancy. Kahl:Roche: Membership on an entity's Board of Directors or advisory committees, Research Funding; Genentech: Membership on an entity's Board of Directors or advisory committees, Research Funding; Teva Pharmaceuticals: Membership on an entity's Board of Directors or advisory committees. MacDonald:Lundbeck: Membership on an entity's Board of Directors or advisory committees; Roche: Membership on an entity's Board of Directors or advisory committees, Research Funding. Munteanu:Teva Pharmaceutical Industries Ltd.: Employment. Clementi:Teva Pharmaceutical Industries Ltd.: Employment. Chen:Teva Pharmaceutical Industries Ltd.: Employment. Burke:Spectrum Pharmaceuticals: Consultancy.

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A Retrospective Multicenter Study to Evaluate the Efficacy of Rabbit Antithymocyte Globulin (rATG) Immunosuppressive Therapy As First-Line Treatment of Aplastic Anemia

Blood ◽

10.1182/blood.v126.23.1217.1217 ◽

2015 ◽

Vol 126 (23) ◽

pp. 1217-1217

Author(s):

Suporn Chuncharunee ◽

Raymond SM Wong ◽

Ponlapat Rojnuckarin ◽

Cheng-Shyong Chang ◽

Kian Meng Chang ◽

...

Keyword(s):

Board Of Directors ◽

Research Funding ◽

Antithymocyte Globulin ◽

Dose Range ◽

Recommended Dose ◽

Line Treatment ◽

First Line ◽

Advisory Committees ◽

The Us ◽

First Line Treatment

Abstract Background Immunosuppressive therapy (IST) with antithymocyte globulin (ATG) and cyclosporine is the preferred treatment for patients with severe acquired aplastic anemia (SAA) ineligible for hematopoietic stem cell transplantation. In 2007, horse ATG (hATG) was removed from most markets outside the US limiting patients to the use of rabbit ATG (rATG). Response rates for hATG range from 60-70%, with overall survival (OS) rates of 60-90% (Korean J Intern Med. 2014;29:713-726). Although, many studies have shown no differences in efficacy between ATG types, others have shown rATG to be inferior to hATG. A prospective study by the US National Institutes of Health (NIH) showed a 6-month RR of 37% for rATG compared to 68% for hATG (N Engl J Med. 2011;365:430-438). The discrepancies in efficacy could be due to many factors including dose and ethnicity. We aimed to analyze hematologic response, survival, and safety of rATG (Thymoglobulin®) as first-line therapy of SAA and very SAA (vSAA) in Asian patients of all ages. Methods We retrospectively reviewed the medical records of 97 consecutive patients who received rATG in combination with cyclosporine and/or a corticosteroid as first-line treatment of SAA or vSAA at participating centers in Malaysia, Taiwan, Hong Kong, and Thailand between 2006 and 2012. The primary endpoint was overall RR (ORR) (complete response [CR] plus partial response [PR]) at 6 and 12 months for patients receiving rATG within the recommended dose range (2.5-3.75 mg/kg/day). Response was evaluated using British Guidelines (Br J Haematol. 2009;147:43-70). Secondary endpoints included ORR in patients receiving any dose of rATG, 2-year OS, OS in responders vs non-responders, relapse rate, and safety. Response and survival with 95% confidence intervals (CI) were estimated using the Kaplan-Meier method. Results Patient median age was 31 years (range 2-81 years); 51% (n= 49) were male and 49% (n=48) female. Eighty-seven percent (n=84) were diagnosed with SAA and 13% (n=13) with vSAA. Twelve patients were excluded from the response evaluation due to the following: lack of post-baseline response data, n=6; second-line rATG within 3 months of first-line treatment, n=3; did not meet criteria for SAA, n=3. Of the 85 patients evaluable for response, only 73% (n=62) received rATG within the recommended dose range; 20% (n=17) received < 2.5 mg/kg/day and 7% (n=6) received > 3.5 mg/kg/day. For patients who received rATG within the recommended dose range, 6- and 12-month ORR were 17.4% (95% CI, 9.8-30.0) and 63.6% (95% CI, 49.4-77.7), respectively. For patients who received any dose of rATG, 6- and 12-month ORR were 24.3% (95% CI, 16.2-35.4) and 68.6% (95% CI, 56.9-80.1), respectively. The 2-year OS rate was 86.3% (95% CI, 77.0-92.0). For patients with a response to treatment (n=46), the 2-year OS was 97.7% (95% CI, 84.6-99.7) compared to 78.9% (95% CI, 59.9-89.6) for patients with no response (n=39), P =.006. The 2-year rate of relapse rate was 6.3% (95% CI 2.1-18.2). The most common serious adverse events (≥ 5%) that occurred within 30 days of last treatment were febrile neutropenia (28%), sepsis (12%), pyrexia (5%), and pneumonia (5%). Grade 4 infusion-related reactions occurred in only 1 (1%) patient. Conclusions Although the 6-month ORR for rATG was low compared to hATG in the NIH study, the 12-month ORR and 2-year OS were comparable to historical results obtained with hATG, suggesting that more time may be needed to achieve maximal response with rATG. Our results show that rATG is an effective form of IST in the Asian population with over 60% of patients achieving a CR or PR at 12 months and an overall survival rate of 86.3% at 2 years. Disclosures Wong: GlaxoSmithKline: Research Funding; Johnson & Johnson: Research Funding; Pfizer: Research Funding; Roche: Research Funding; Novartis Pharmaceuticals Corporation: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau; Bristol-Myers Squibb: Research Funding; Merck Sharp & Dohme: Research Funding; Biogen-Idec: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Bayer: Consultancy, Research Funding. Rojnuckarin:Sanofi: Research Funding. Chang:Novartis: Honoraria.

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Analysis of Factors Predictive of Risk of Transformation and Time to Transformation in Patients (pts) with Mantle Cell Lymphoma - Cohort Study of 369 Patients

Blood ◽

10.1182/blood-2019-125936 ◽

2019 ◽

Vol 134 (Supplement_1) ◽

pp. 1526-1526

Author(s):

Preetesh Jain ◽

Rashmi Kanagal-Shamanna ◽

Chi Young Ok ◽

Gonzalez-Pagan Omarya ◽

Lucy Navsaria ◽

...

Keyword(s):

Board Of Directors ◽

Research Funding ◽

Advisory Board ◽

Initial Diagnosis ◽

Line Treatment ◽

First Line ◽

Advisory Committees ◽

Ki 67 ◽

Leukemic Phase ◽

First Line Treatment

Introduction: A fraction of pts with classic variant MCL can transform to an aggressive histology (blastoid/pleomorphic) MCL. Outcomes of transformed pts are inferior to that of denovo blastoid variant MCL and classic variant MCL who never transformed (CNT) Jain P et al ASH 2018. Application of routinely available clinical variables at initial diagnosis to predict the future risk for transformation or time to transformation is an unmet need in MCL. Methods: We analyzed charts from 369 pts with MCL (293 were CNT and 76 were transformed MCL). Statistical analysis was performed from baseline pt characteristics collected from the time of initial diagnosis in CNT group and at the time of initial diagnosis of classic variant MCL who later transformed (t-MCL). Time to transformation (TTT) was calculated from initial diagnosis to the date of transformation in those who transformed and last follow up in those who never transformed. Univariate and multivariate logistic regression modeled the risk of transformation. Classification and regression tree (CART) analysis was performed to identify optimal cut off in categorical variables predictive of TTT. Results: Among the 369 pts, the median age was 62 yrs (range 34-90), 79% were males. Ki-67% values were available in 133 pts (36% of total) and median Ki-67% was 25% (range 1-80). 84% had initial bone marrow involvement and 12% had leukemic phase at diagnosis. The median follow up was 58.5 months and the median overall survival (OS) was 94.8 months and 47% were alive at the time of this analysis. Compared to pts in the CNT group, pts in t-MCL group exhibited differences in following baseline characteristics - higher values of median Ki-67% (30% vs 20% in t-MCL; p=0.04), higher LDH levels, higher proportions of pts with high risk simplified MIPI risk score, leukemic phase at initial diagnosis, complex karyotype and lower hemoglobin and lower proportion of pts achieving complete remission (CR) after first line treatment (78% in t-MCL vs 86% in CNT). In addition, first line treatments received by both groups were similar - R-HCVAD based, R-chemo based, ibrutinib based, chemotherapy alone and miscellaneous. Logistic regression model showed factors associated with the risk of transformation. In univariate analysis, higher risk was significantly associated with Ki-67% as a continuous variable - OR 1.03 (95% CI 1.01-1.05; p=0.006), leukemic phase at diagnosis, high risk MIPI score, complex cytogenetics. First line treatment with ibrutinib compared to R-HCVAD, autologous stem cell transplant SCT at any time point and higher number of nodal sites were associated with decreased risk of transformation. In multivariate analysis (MVA), higher number of nodal sites and SCT were associated with decreased risk of transformation. The median time to transformation in months for those who transformed was 39 (range 5-240 months) while in CNT it was 51 months (1-257 months). We further identified that incremental Ki-67% was significantly associated with TTT and OS (Figure-1A-B). Using CART analysis we identified Ki-67% ≥60 is significantly associated with shorter TTT (HR, 6.26; 95% CI 2.58-15.21; p <0.001-1C). In addition, shorter TTT was associated with elevated LDH, high risk MIPI score, CNS involvement at baseline, higher WBC counts, leukemic phase MCL, complex cytogenetics and R-chemotherapy as first line treatment while longer TTT was associated with higher number of nodal sites, SCT at any time point, higher hemoglobin, CR after initial treatment (Figure-1D) and increased number of lines of treatment before transformation. In MVA, higher number of nodal sites, CR after initial treatment was predictive of longer TTT while CNS involvement at baseline and bone marrow involvement at baseline were predictive of shorter TTT. Further analysis on gene signature, type of treatments, response, VH gene mutation, Sox-11 status, somatic mutation status are ongoing and will be reported. Conclusions: This is the first analysis showing an association of routinely available clinical variables in determining risk for transformation of MCL and TTT. Routinely available variables such as incremental Ki-67%, LDH levels, number of nodal sites, ibrutinib based treatments, SCT, CR after first line treatment and leukemic phase at diagnosis reliably predicted for time to transformation in MCL. Disclosures Lee: Seattle Genetics, Inc.: Research Funding. Westin:Genentech: Other: Advisory Board, Research Funding; Curis: Other: Advisory Board, Research Funding; Juno: Other: Advisory Board; Celgene: Other: Advisory Board, Research Funding; Novartis: Other: Advisory Board, Research Funding; Kite: Other: Advisory Board, Research Funding; Unum: Research Funding; 47 Inc: Research Funding; MorphoSys: Other: Advisory Board; Janssen: Other: Advisory Board, Research Funding. Nastoupil:Bayer: Honoraria; Celgene: Honoraria, Research Funding; Genentech, Inc.: Honoraria, Research Funding; Gilead: Honoraria; Janssen: Honoraria, Research Funding; Novartis: Honoraria; TG Therapeutics: Honoraria, Research Funding; Spectrum: Honoraria. Champlin:Sanofi-Genzyme: Research Funding; Actinium: Consultancy; Johnson and Johnson: Consultancy. Neelapu:Cellectis: Research Funding; Novartis: Consultancy; Precision Biosciences: Consultancy; BMS: Research Funding; Acerta: Research Funding; Incyte: Consultancy; Poseida: Research Funding; Unum Therapeutics: Consultancy, Research Funding; Cell Medica: Consultancy; Karus: Research Funding; Pfizer: Consultancy; Celgene: Consultancy, Research Funding; Kite, a Gilead Company: Consultancy, Research Funding; Merck: Consultancy, Research Funding; Allogene: Consultancy. Fowler:TG Therapeutics: Membership on an entity's Board of Directors or advisory committees, Research Funding; Abbvie: Membership on an entity's Board of Directors or advisory committees, Research Funding; Janssen: 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; Roche: Membership on an entity's Board of Directors or advisory committees, Research Funding. Wang:Janssen: Consultancy, Honoraria, Research Funding, Speakers Bureau; Loxo Oncology: Research Funding; Celgene: Honoraria, Research Funding; AstraZeneca: Consultancy, Honoraria, Research Funding, Speakers Bureau; Juno Therapeutics: Research Funding; Aviara: Research Funding; Dava Oncology: Honoraria; MoreHealth: Consultancy, Equity Ownership; Pharmacyclics: Honoraria, Research Funding; Acerta Pharma: Consultancy, Research Funding; Kite Pharma: Consultancy, Research Funding; Guidepoint Global: Consultancy; BioInvent: Consultancy, Research Funding; VelosBio: Research Funding.

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First Line Treatment with Hydroxyurea in Patients with Policitemia Vera: Evaluation of Efficacy in the Current Clinical Practice Beyond ELN Criteria

Blood ◽

10.1182/blood-2020-140810 ◽

2020 ◽

Vol 136 (Supplement 1) ◽

pp. 43-44

Author(s):

Roberto Latagliata ◽

Massimo Breccia ◽

Ambra Di Veroli ◽

Giulia Benevolo ◽

Elena M Elli ◽

...

Keyword(s):

Clinical Practice ◽

Board Of Directors ◽

Research Funding ◽

Current Clinical Practice ◽

Line Treatment ◽

First Line ◽

Advisory Committees ◽

Definition Of ◽

Wbc Count ◽

First Line Treatment

Introduction Hydroxyurea (HU) is worldwide used in the current clinical practice as first line treatment in high risk patients with Polycythemia Vera (PV). However, its efficacy has been seldom evaluated in the real-life setting. Aims The present study aims to address the role of Complete Peripheral Recovery (CPR) as useful response criteria in PV patients treated with HU in a large cohort of unselected patients. Methods After IRB approval, data of 846 PV patients, revised according to WHO2008/2016 and followed in 21 European Hematology Centers, were retrospectively collected. Definition of CPR during HU treatment included all the following criteria: hematocrit (Ht) level ≤45% (≤3 phlebotomies per year allowed), white blood cells (WBC) count ≤10 x109/l, platelets (PLT) count ≤ 400 x109/l. Spleen size and symptoms were not considered in the definition of CPR. Event-free survival (EFS), considering as event evolution into blast phase (BP) or myelofibrosis (MF) and death from any cause, was calculated from HU start to last contact/event by Cox analysis with age≥70y. Overall survival (OS) was calculated from the start of HU to last contact/death (log-rank p). Results Among the 846 patients of the entire cohort, 724 (85.5%) were treated with HU after a median time from PV diagnosis of 2.6 months [interquartile range (IQR) 0.5 - 19.6]: the main clinical features of these 724 patients at diagnosis are reported in the Table 1. Starting doses of HU, available in 709 patients, were <500 mg/day in 42 (5.9%), 500 mg/day in 371 (52.3%), 750 mg/day in 39 (5.5%), 1000 mg/day in 219 (30.9%) and >1000 mg/day in 38 (5.4%). Twenty-five patients were not evaluable for response to HU. Among the remaining 699 patients, 426 (60.9%) achieved a CPR after a median time from HU start of 4.9 months (IQR 2.1 - 15.7) while 273 (39.1%) never achieved a CPR. Among the 426 patients who achieved CPR, 115 (26.9%) needed a treatment period >12 months before obtaining the CPR. The main baseline clinical features of patients achieving or not CPR are reported in the Table 1: female sex, older age at diagnosis and at HU start, lower WBC count, no phlebotomies need and no palpable spleen were all associated in univariate analysis with CPR achievement. During HU treatment, a thrombotic episode occurred in 36 patients achieving CPR (8.4%) compared to 16 patients without CPR (5.8%) (p=0.162). Among 426 patients achieving CPR, 20 (4.6%) evolved in MF and 10 (2.3%) evolved in BP: among 273 patients without CPR, 20 (7.3%) evolved in MF and 9 (3.3%) evolved in BF (p=0.134 and 0.451, respectively). Ten-year EFS was 79.2% [95%Confidence Interval (CI) 72.1 - 84.8] in patients achieving CPR compared to 67.3% (95%CI 56.9 - 75.7) in patients without CPR (p=0.001) (Fig. 1). Ten-year OS was 80.5% (95%CI 73.9 - 87.1) in patients achieving CPR compared to 74.4% (95%CI 65.6 - 83.2) in patients without CPR (p=0.116). Conclusions In the current clinical practice, HU is effective in inducing CPR in about two thirds of patients with PV treated front-line. CPR is more frequently achieved by patients with lower disease burden, including lower WBC count, and less frequent PHL need and palpable spleen. Notably, >25% of responding patients achieved CPR after >12 months from HU start, suggesting the need for a long period of HU therapy before efficacy evaluation. The clinical importance of CPR is highlighted by a significantly longer EFS in patients achieving this type of response. Disclosures Breccia: Abbvie: Consultancy; Bristol-Myers Squibb/Celgene: Consultancy, Honoraria; Pfizer: Consultancy, Honoraria; Incyte: Consultancy, Honoraria; Novartis: Consultancy, Honoraria. Benevolo:Amgen: Honoraria; Celgene: Honoraria; Novartis: Honoraria. Cavazzini:Pfize: Honoraria; Incyte: Honoraria; Novartis: Honoraria. Heidel:Novartis: Consultancy, Honoraria, Research Funding. Crugnola:Novartis: Honoraria; Celgene: Honoraria; Janssen: Honoraria; BMS: Honoraria. Pane:AbbVie: Consultancy, Other: Travel Expenses, Speakers Bureau; Amgen: Consultancy, Other: Travel Expenses, Speakers Bureau; Daiichi Sankyo: Consultancy, Other: Travel Expenses; Jazz Pharmaceuticals: Consultancy, Other: travel expenses, Speakers Bureau; Novartis pharma SAS: Consultancy, Other: Travel Expenses, Research Funding, Speakers Bureau; Janssen: Other: Travel Expenses; Bristol Myers Squibb: 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. Cuneo:Roche: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Abbvie: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Gilead: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Astra Zeneca: Honoraria; Janssen: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau. Krampera:Janssen: Membership on an entity's Board of Directors or advisory committees; Novartis: Membership on an entity's Board of Directors or advisory committees. Semenzato:Abbvie: Honoraria; Roche: Honoraria; Takeda: Honoraria. Cavo:Jannsen, BMS, Celgene, Sanofi, GlaxoSmithKline, Takeda, Amgen, Oncopeptides, AbbVie, Karyopharm, Adaptive: Consultancy, Honoraria. Palumbo:Amgen: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Novartis: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Celgene: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau. Palandri:Novartis: Consultancy, Honoraria.

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