bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preliminary results of V-FAST, a phase 1b master trial to investigate CPX-351 combined with targeted agents in newly diagnosed AML.
Authors: Pullarkat Vinod , Levis Mark J. , Mannis Gabriel N. , Strickland Stephen Anthony , Lin Tara L. , Faderl Stefan , Chakravarthy Divya , Chandrasekaran Vijayalakshmi , Cheung Ronald , Erba Harry Paul 
Published: June 2021

7026 Background: CPX-351 (US: Vyxeos; EU: Vyxeos Liposomal), a dual-drug liposomal encapsulation of daunorubicin and cytarabine in a synergistic 1:5 molar drug ratio, is approved by the US FDA and EMA for adults with newly diagnosed t-AML or AML with myelodysplasia-related changes. Preclinical data suggest CPX-351 may exert synergistic activity when combined with agents such as the BCL-2 inhibitor venetoclax (VEN) or FLT3 inhibitor midostaurin (MIDO). Methods: V-FAST (Vyxeos – First Phase Assessment With Targeted Agents) is an open-label, multicenter, phase 1b master trial (NCT04075747) to evaluate safety and establish the recommended phase 2 dose (RP2D) of CPX-351 combined with targeted agents in patients (pts) aged 18-75 y with untreated AML who are fit for intensive chemotherapy. The study includes a dose-exploration phase (3+3 design) and subsequent expansion phase. Pts received CPX-351 (dose level 1 for first induction [DL1]: 100 units/m2 on Days 1, 3, and 5) plus VEN (Arm A; DL1: 400 mg on Days 1-14), MIDO (Arm B; DL1: 50 mg BID on Days 8-21), or the IDH2 inhibitor enasidenib ([ENA] Arm C; DL1: 100 mg on Days 8-28) based on mutation testing. Results: Among 21 pts with available data enrolled by 11/06/20 (24 pts enrolled total; data cut-off: 01/19/21), the median age was 54 y (range: 35, 69). In Arm A (n = 17), 11 (65%) pts had de novo AML, 5 (29%) had an antecedent hematologic disorder (2 [12%] had myelofibrosis), and 2 (12%) had t-AML; 12 (71%) had adverse-risk AML; and 6 (35%) had mutated TP53. In Arms B (n = 3) and C (n = 1), all pts had intermediate-risk de novo AML. DL1 was the RP2D in Arms A and B; the RP2D in Arm C is still under investigation. In Arm A, 1/6 pts in the dose-exploration phase had 2 dose-limiting toxicities (DLTs) of grade 4 neutropenia and thrombocytopenia that extended beyond 49 days; no DLTs have occurred for Arms B and C. The combinations exhibited manageable safety profiles (Table). Of pts with available response data, complete remission (CR) or CR with incomplete platelet or neutrophil recovery was achieved by 6/14 (43%) pts in Arm A, including 4 (29%) with CR. All pts in Arms B and C achieved CR. Conclusions: These preliminary results suggest CPX-351 can be combined with VEN and MIDO with manageable toxicities in newly diagnosed AML pts, with DL1 determined to be the RP2D. The study is ongoing and actively enrolling pts; updated results will be presented at the meeting. Clinical trial information: NCT04075747. [Table: see text]
Characterizing advance care planning, palliative care utilization, and location of end-of-life for adult allogeneic hematopoietic stem cell transplant recipients.
Authors: Hoffman Stephanie , Reddy Pavan , Magenau John Martin , Pawarode Attaphol , Parkin Brian , Anand Sarah Marie , Ghosh Monalisa , Maciejewski John Joseph , King Darren Patrick , Riwes Mary 
Published: June 2021

7034 Background: The impacts of advance care planning (ACP) on end-of-life (EOL) outcomes in allogeneic hematopoietic stem cell transplant (allo HCT) recipients are not well known. ACP includes advance directive (AD) completion, and palliative care (PC) consultation. Using these two components, we aimed to explore the current state of ACP and its impact on EOL outcomes in allo HCT recipients to provide the groundwork for future prospective studies. Methods: We performed a retrospective study of deceased adult patients who underwent allo HCT between December 2015-December 2019. We summarized patient characteristics, the rate of AD completion, PC consultation, and location of end-of-life (EOL). Univariate and multivariate analyses were performed to evaluate patient characteristics that may be associated with AD completion, PC consultation and assess the impact of these two factors on location of EOL. Results: See Table for summary of patient characteristics. Of the 125 patients included, we found that 66% (n = 82) completed ADs. All patients with ADs completed them prior to undergoing transplant and never modified them. The majority of patients (84%) with an AD expressed the desire to avoid life-sustaining treatment in the event of terminal illness or irreversible coma. PC was consulted for 46% (n = 58) of patients within 6 months prior to time of death (TOD). Regarding location of EOL, 30% of all patients died in the hospital (non-ICU), 20% in the ICU, 38% at home with hospice, and 10% in a hospice facility. Patients with ADs appeared more likely to die outside of the hospital compared to those without (53% vs. 44%, p = 0.4506). By multivariate analysis, there were no significant patient characteristics associated with the presence of an AD or PC consultation. After adjusting for age and comorbidity index, we found that patients with an AD were significantly more likely to die outside of the ICU (OR 3.0, 95% CI 1.2-7.5, p = 0.02), an effect that was further amplified in patients who both had an AD and received PC consultation at any point (n = 30, p = 0.0077). Conclusions: Our findings highlight the importance of ACP for EOL outcomes in the allo HCT population. While the rate of AD completion in our study population is higher than that of prior studies, future prospective studies aimed to improve the rate of ACP are needed.[Table: see text]
Model-based analysis to support dose selection of pevonedistat (PEV) combined with azacitidine (AZA) in patients (pts) with higher-risk myelodysplastic syndromes (MDS)/chronic myelomonocytic leukemia (CMML) and acute myeloid leukemia (AML).
Authors: Zhou Xiaofei , Mould Diane R. , Zhao Dan , Sekeres Mikkael A. , Adès Lionel , Swords Ronan T. , Handa Hiroshi , Fram Robert J. , Faller Douglas V. , Tsukurov Olga , Gupta Neeraj 
Published: June 2021

7042 Background: PEV+AZA has been studied in higher-risk MDS/CMML and AML, with encouraging efficacy and an acceptable safety profile without added myelosuppression. This pooled analysis was performed to evaluate the impact of PEV exposure on safety and efficacy. Methods: Data from three studies (NCT01814826, NCT02782468 and NCT02610777) were used in the PEV exposure–safety analyses, including ≥ grade 3 neutropenia (NEU3), febrile neutropenia (FN), ≥ grade 3 thrombocytopenia, ≥ grade 3 alanine aminotransferase elevation, ≥ grade 3 aspartate aminotransferase elevation and ≥ grade 3 treatment-emergent adverse event (TEAE3), in pts with higher-risk MDS/CMML and AML who received PEV+AZA. Data from NCT02610777 were used for exposure–efficacy analyses, including overall survival (OS), event-free survival (EFS), complete response (CR) and CR+partial response (PR), in pts with higher-risk MDS/CMML who received PEV+AZA. The exposure metrics for individual pts were derived from a previously developed population pharmacokinetic model with pooled data from eight phase 1/2 studies. PEV exposure–safety relationships for the toxicity endpoints, exposure–CR and exposure–CR+PR, were estimated by logistic regression. Age, sex, race, baseline Eastern Cooperate Oncology Group (ECOG) Performance Status score and disease type were evaluated as covariates. Cox proportional-hazards models were used to evaluate the PEV exposure–survival for higher-risk MDS/CMML, with age, sex, baseline ECOG PS score, Revised International Prognostic Scoring System score (IPSS-R) and disease type as potential covariates. Results: In total, 135 pts (median age, 74 years; male, 64%; Caucasian, 82%) and 41 pts (median age, 74 years; male, 76%; Caucasian, 90%; median IPSS-R, 5.5) were included in PEV exposure–safety and exposure–efficacy analyses, respectively. PEV exposure was significantly related to the incidence of NEU3 ( p = 0.003), FN ( p = 0.02) and TEAE3 ( p = 0.02), supporting PEV dose reductions for pts with treatment-related toxicities. Relationships between PEV exposures and CR, CR+PR, EFS or OS indicated consistent clinical benefit across ranges of PEV exposure following a starting dose of 20 mg/m2. Conclusions: The association between exposure and safety supports PEV dose reductions for pts with treatment-related toxicities. The exposure–efficacy analyses indicated consistent clinical benefit across ranges of PEV exposure following a starting dose of 20 mg/m2. These results support a favorable benefit–risk profile of the 20 mg/m2 PEV dose on days 1, 3 and 5 in combination with AZA 75 mg/m2 for 7 days in 28-day cycles. Clinical trial information: NCT01814826 , NCT02782468 , NCT02610777.
Association of transfusion independence with improved overall survival in myelofibrosis patients receiving momelotinib.
Authors: Mesa Ruben A. , Oh Stephen T. , Gerds Aaron Thomas , Gupta Vikas , Catalano John V. , Cervantes Francisco , Devos Timothy , Hus Marek , Kiladjian Jean-Jacques , Lech-Maranda Ewa , Mclornan Donal P. , Palmer Jeanne , Platzbecker Uwe , Treliński Jacek , Shimoda Kazuya , Donahue Rafe , Strouse Bryan , Kowalski Mark Marion , Verstovsek Srdan 
Published: June 2021

7046 Background: Momelotinib (MMB) is a potent JAK1, JAK2 and ACVR1 inhibitor with clinical activity against the hallmark features of myelofibrosis (MF), namely anemia, constitutional symptoms and splenomegaly, across the continuum of JAKi naïve or previously JAKi treated intermediate/high risk MF patients as demonstrated in the previously conducted Phase 3 SIMPLIFY-1 & -2 clinical trials (S1, S2). S1 enrolled JAKi-naïve patients with MF (n = 432) double-blind randomized 1:1 to MMB or ruxolitinib (RUX). S2 enrolled patients with MF with hematological toxicity during prior RUX therapy (n = 156) randomized 2:1 to open-label MMB or best available therapy (BAT; consisting of RUX in 88% of patients). In both trials, following the 24-week randomized treatment (RT) period, patients could continue MMB (MMB→MMB) and those randomized to RUX/BAT could cross-over to MMB (RUX/BAT→MMB) for extended treatment (ET). Previously published data from the SIMPLIFY studies demonstrate robust overall survival (OS) for MMB-treated patients in S1 and S2 (median not reached and 34.3 months, respectively) with a maximum follow up of approximately 5 years and median of 2.9 years in S1 and 2.3 years in S2. Methods: OS data for patients receiving MMB in S1 and S2 are reported here for subgroups defined by Week 24 (W24) transfusion independence (TI) responders vs non-responders, and also other efficacy endpoints. Survival was estimated using KM analysis with descriptive log-rank tests for comparison applied (all p-values are descriptive). Results: As previously reported, W24 TI rates were higher in the MMB arms of S1 (67% vs 49%) and S2 (43% vs 21%). In S1, W24 TI responders in the MMB group show an OS advantage, with median OS not reached and 3-year survival of 80% (HR = 0.30; p = 0.0001) compared to MMB TI non-responders. Similarly in S2, W24 TI responders in the MMB group show a trend toward better OS compared to TI non-responders (HR = 0.57; p = 0.0652). The HRs in S1 for MMB responders vs non-responders for W24 SRR and TSS were 0.59 (p = 0.0904) and 0.65 (p = 0.1657), respectively. Alternative analyses using OS defined from W24 demonstrated consistent results. Conclusions: These new analyses suggest JAKi naïve patients receiving MMB who maintain or achieve TI at W24 have favorable OS compared to MMB TI non-responders, with a similar trend observed in S2. These findings are consistent with anemia and transfusion dependency being key predictors of shortened OS in MF and suggest that TI response at W24 may become a surrogate for clinical benefit, supporting the clinical relevance of MMB’s differentiated pro-erythropoietic ACVR1 inhibition. Clinical trial information: NCT01969838.
Progression-free survival at 24 months as a landmark after autologous stem cell transplant in relapsed or refractory diffuse large B-cell lymphoma.
Authors: Tun Aung M. , Maliske Seth , Wang Yucai , Maurer Matthew J. , Micallef Ivana N. M. , Inwards David James , Porrata Luis F. , Rosenthal Allison Claire , Kharfan-Dabaja Mohamed , Orme Jacob , Link Brian K. , Cerhan James Robert , Thompson Carrie A. , Habermann Thomas Matthew , Witzig Thomas E. , Ansell Stephen M. , Nowakowski Grzegorz S. , Farooq Umar , Johnston Patrick B. 
Published: June 2021

7522 Background: Patients with newly diagnoseddiffuse large B-cell lymphoma (DLBCL) who achieve event-free survival at 24 months (EFS24) following immunochemotherapy (IC) have excellent overall survival (OS) similar to that of age- and sex-matched general population. The standard of care for patients with relapsed or refractory (RR) DLBCL following frontline IC is salvage therapy followed by autologous stem cell transplant (ASCT). The goal of this study is to evaluate the role of progression-free survival (PFS) at 24 months (PFS24) as a landmark after ASCT in patients with RR DLBCL. Methods: Patients with RR DLBCL after frontline R-CHOP or R-CHOP-like IC who underwent salvage therapy and ASCT at Mayo Clinic or University of Iowa between 07/2000 and 4/2020 were identified from institutional lymphoma transplant databases. Clinical characteristics, treatment information, and outcome data were abstracted. Post-ASCT PFS, OS, and post-relapse survival (PRS) were plotted by Kaplan-Meier method, and cumulative incidences of relapse vs non-relapse mortality (NRM) and different causes of death were compared accounting for competing events. Statistical analyses were performed in EZR v1.54. Results: A total of 437 patients were identified. Median age at ASCT was 61 years (range 19-78), and 280 (64%) were male. After a median post-ASCT follow up of 8.0 years (95% CI 7.2-8.7), 215 patients had a relapse (or disease progression), 180 within 2 years and 35 after 2 years. For the entire cohort, post-ASCT relapse rate was much higher than NRM rate (48.1 vs 9.1% at 5-year). Median PFS and OS after ASCT was 2.7 and 5.4 years, respectively. Lymphoma was the primary cause of death after ASCT. In contrast, for patients who had achieved PFS24 (n = 220), rates of post-PFS24 relapse and NRM were similar (14.8% and 12.3% at 5-year). Median PFS and OS after achieving PFS24 was 10.0 and 11.5 years, respectively. Lymphoma related and unrelated death rates were similar after achieving PFS24 (Table). For all patients who had a post-ASCT relapse, median PRS was 0.7 years (95% CI 0.5-0.9), and late relapse ( > 2 vs ≤2 years after ASCT) was associated with better PRS (median 2.3 [1.7-4.8] vs 0.5 [0.3-0.7] years, p < 0.001). Conclusions: Post-ASCT PFS24 is an important prognostic predictor of post-ASCT outcomes in patients with RR DLBCL following frontline IC.[Table: see text]
A phase Ib study of a PI3Kδ inhibitor Linperlisib in patients with relapsed or refractory peripheral T-cell lymphoma.
Authors: Jin Jie , Cen Hong , Zhou Keshu , Xu Xiaohong , Li Fei , Wu Tao , Yang Haiyan , Wang Zheng , Li Zhiming , Qiu Lugui , Bao Hanying , Xu Zusheng , Shu Yang 
Published: June 2021

7531 Background: PI3Kδ inhibitors have been shown to have important roles in blocking mitogenic and survival signaling within the tumor cell and the tumor microenvironment and activate antilymphoma immune responses. Linperlisib is an oral highly selective small molecule inhibitor of PI3Kδ and has been demonstrated to be well-tolerated with a favorable PK profile in patients with lymphomas at the RP2D. This phase Ib study is evaluating the efficacy and safety of Linperlisib in relapsed or refractory peripheral T-cell lymphoma (PTCL), a highly aggressive malignancy with few treatment options for patients. Methods: Eligible PTCL patients who must have received at least 1 prior systemic conventional therapy were administrated Linperlisib 80mg orally once daily (RP2D) in 28 days cycle until disease progression, unacceptable toxicity, or withdrawal from the study. Tumor response was assessed by IWG 2007 criteria with CT performed every 2 cycles. The primary endpoint was the overall response rate (ORR), and the secondary endpoint was toxicity assessed by NCI-CTCAE5.0. Results: As of February 2, 2021, 36 PTCL patients were enrolled in this exploratory trial. Most patients were stage III (38.2%) or IV (50%). Of the 27 evaluable patients to date, the PTCL histologies were PTCL-NOS (n=12), AITL (n=10), ALCL (n=3), NKTCL (n=1) and MEITL (n=1). 19 of the 27 evaluable patients had Investigator confirmed responses for a 70.4% ORR including 25.9% CR (7pt) and 44.4% PR (12pt). In the major subtypes, ORR was 50% (6/12) PTCL-NOS and 80% (8/10) AITL, respectively. A disease control rate of 100% was observed, and most responses occurred by first assessment at C2D28. One subject who had a CR at C2D28 is currently in cycle 9 and continuing on Linperlisib. 36 patients experienced at least 1 AE in the trial, with 95% of AEs ≤ grade 2. Consistent with previously treated lymphoma patients, no unexpected toxicities were observed. The most common TRAEs (≥10%) were neutrophil count decreased (55.6%), leukocyte count decreased (33.3%), hypertriglyceridemia (22.2%), aspartate aminotransferase increased (16.7%), hypercholesterolemia (16.7%), alanine aminotransferase increased (11.1%), creatinine increased (11.1%), rash (11.1%), thrombocyte count decreased (11.1%) and electrocardiogram T wave abnormal (11.1%). No AE grade 4 was observed. 6 patients (16.7%) experienced at least one SAE, in which 4 (11.1%) SAEs were considered to be drug-related, including neutrophil count and leukocyte count decreased (2.8%), gastritis (2.8%), and pneumonia (5.6%). Conclusions: The oral PI3Kd inhibitor Linperlisib had significant activity in patients with relapsed or refractory PTCL. Toxicities with Linperlisib therapy were generally tolerable and manageable. Further efficacy and safety is being evaluated. Clinical trial information: NCT04108325.
Outcomes with KTE-X19 in patients (pts) with relapsed/refractory (R/R) mantle cell lymphoma (MCL) in ZUMA-2 who had progression of disease within 24 months of diagnosis (POD24).
Authors: Wang Michael , Munoz Javier , Goy Andre , Locke Frederick Lundry , Jacobson Caron A. , Hill Brian T. , Timmerman John , Holmes Houston , Jaglowski Samantha , Flinn Ian , McSweeney Peter A. , Miklos David Bernard , Kersten Marie José , Bouabdallah Krimo , Topp Max S. , Shen Rhine , Kloos Ioana , Peng Weimin , Fang Xiang , Reagan Patrick M. 
Published: June 2021

7547 Background: KTE-X19 is an autologous anti-CD19 CAR T-cell therapy approved in the US and EU for the treatment of R/R MCL. In the ZUMA-2 study of KTE-X19 in R/R MCL, the objective response rate (ORR) at a median 17.5-mo follow-up was 92% (67% complete responses [CR]; Wang et al. ASH 2020 #1120). Here, we report results in pts with or w/o POD24, an indicator of poor outcomes (Visco et al. Br J Haematol 2019). Methods: Eligible pts with R/R MCL underwent leukapheresis and conditioning chemotherapy followed by a single infusion of KTE-X19. Efficacy results are reported for the 60 treated pts with ≥1 y of follow-up (median 17.5 mo); safety results are presented for all 68 treated pts. Results: High-risk disease characteristics were common in pts with (n=33) and w/o POD24 (n=35), although pts with POD24 had higher tumor burden and lactate dehydrogenase (LDH) levels, and more had blastoid type MCL (Table). ORR in pts with (n=28) and w/o POD24 (n=32) was 93% and 91%, with CR rates of 61% and 72%. In pts with and w/o POD24, median progression-free survival (PFS) was 11.3 mo (range, 0.9–30.3) and 29.3 mo (range, 0–35.9). Medians for duration of response (DOR) and overall survival (OS) were not reached in either group. Most common Grade ≥3 adverse events (AEs) in pts with vs w/o POD24 were neutropenia (91% vs 80%), thrombocytopenia (61% vs 46%), and anemia (55% vs 51%); Grade ≥3 cytokine release syndrome (CRS) and neurologic events occurred in 9% vs 20% and 27% vs 34%, respectively. There were no cases of Grade 5 CRS, KTE-X19–related secondary cancers, or replication-competent retrovirus in either group. In pts with vs w/o POD24, median peak CAR T-cell levels and median area under the curve were 53.4 cells/µL (range, 0.2–2566) and 583.4 cells/µL (range, 1.8–27,743.6) vs 112.4 cells/µL (range, 0.2–2589) and 1588.3 cells/µL (range, 3.8–27,238.7); by 12 mo, B cells were detectable in 8/11 (73%) vs 7/15 pts (47%) in ongoing response. Conclusions: KTE-X19 provided a high CR rate across all pts, with median DOR and OS not reached. Pts with POD24 had more aggressive high-risk disease characteristics (tumor burden, LDH levels, and blastoid MCL) and generally lower CAR T-cell expansion and PFS vs pts w/o POD24. Earlier intervention with CD19-directed CAR T-cell therapy may benefit pts with MCL with known high-risk factors. Clinical trial information: NCT02601313. [Table: see text]
Vaccine titers in lymphoma patients receiving chimeric antigen receptor T-cell therapy.
Authors: Bansal Radhika , Vergidis Paschalis , Tosh Pritish , Wilson John W. , Hathcock Matthew , Bennani N. Nora , Paludo Jonas , Villasboas Jose Caetano , Wang Yucai , Ansell Stephen M. , Johnston Patrick B. , Freeman Catherine M. , Lin Yi 
Published: June 2021

7555 Background: While CAR-T therapy is not myelo-ablative, patients with aggressive lymphoma treated with CD19 chimeric antigen receptor T cell therapy (CAR-T) are lymphodepleted and have prolonged B cell aplasia. The impact of CAR-T on immunologic protection from vaccine-preventable diseases (and thus the need to revaccinate) is not known. We report the vaccine titers of patients treated with axicabtagene ciloleucel (axi-cel) at Mayo Clinic. Methods: Retrospective chart review of adult lymphoma patients who received axi-cel from 9/2018 to 9/2020 for anti-viral and anti-bacterial titers prior to CAR-T infusion and at month 3 (MO3) post CAR-T. Results: Prior to CAR-T therapy, positive titer rate was highest for tetanus and lowest for Strep pneumoniae (Strep PNA) (Table). Similar trends were seen whether patients had stem cell transplant (ASCT) within 2 years of CAR-T (i.e. within immunization timeframe post ASCT) or not (Table). Compared to patients who had ASCT, those who did not had higher rate of positive titer for Strep PNA and lower rate for hepatitis B, Mumps, and VZV. The same trend for sero-positive rate were observed at MO3 post CAR-T. Patients with IgG<400 mg/dl received IVIG supplement for prophylaxis. Among the 23 patients who received IVIG, variable rate of conversion from negative to positive titers were seen for measles (1/2, 50%), mumps (2/3, 67%), rubella (2/3, 67%), varicella-zoster (VZV, 3/3, 100%), hepatitis A (6/6, 100%), hepatitis B (6/7, 86%) and Strep PNA (0/10, 0%). For patients who did not receive IVIG prophylaxis, there was one loss of seropositivity for Strep PNA (1/4, 25%). Conclusions: The presence of protective vaccine titers is variable for patients receiving CAR-T, regardless of recent ASCT. The loss of protective titers post CART was low. IVIG variably impacted vaccine titer status. Immunization remains important for patients with ASCT prior to CART, without completion of post ASCT immunization protocol. Further study is needed to inform the need for immunization and optimal timing post CART.[Table: see text]