scholarly journals BRUIN CLL-322: A Phase 3 Open-Label, Randomized Study of Fixed Duration Pirtobrutinib Plus Venetoclax and Rituximab Versus Venetoclax and Rituximab in Previously Treated Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (Trial in Progress)

Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 3742-3742
Author(s):  
Anthony R. Mato ◽  
William G. Wierda ◽  
John M. Pagel ◽  
Matthew S. Davids ◽  
Pier Luigi Zinzani ◽  
...  
Keyword(s):  
Research Funding ◽  
Advisory Board ◽  
Lymphocytic Leukemia ◽  
Fixed Duration ◽  
Small Lymphocytic Lymphoma ◽  
Publicly Traded ◽  
Open Label ◽  
Phase 3 ◽  
Free Survival ◽  
Prior Therapy

Abstract Background: Covalent Bruton's Tyrosine Kinase (BTK) inhibitors (BTKi) have transformed the management of chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), but these treatments are not curative and the majority of patients will require additional treatment. The MURANO study established the time-limited combination of 2 years venetoclax plus rituximab as a clinically important regimen for patients with R/R CLL/SLL. However, that trial almost exclusively enrolled patients who were never treated with a covalent BTKi, a population less relevant in the context of today's standard of care. Pirtobrutinib is a highly selective, non-covalent BTKi that inhibits both wild type (WT) and C481-mutated BTK with equal low nM potency. In a phase 1/2 BRUIN trial, pirtobrutinib achieved pharmacokinetic exposures that exceeded its BTK IC96 at trough, was well tolerated, and demonstrated promising efficacy in CLL/SLL patients regardless of prior therapy, number of prior lines of therapy, or BTK C481 mutation status (Mato et al. Lancet 2021;397,10277:892-901). Therefore, adding fixed duration pirtobrutinib to the time-limited MURANO regimen may allow for even deeper and more prolonged disease control, and generate a clinically relevant dataset in a BTK-pretreated CLL/SLL population. Study Design and Methods: BRUIN CLL-322 is a randomized, open-label, global phase 3 study comparing fixed duration pirtobrutinib plus venetoclax and rituximab (PVR) versus venetoclax and rituximab (VR) in patients with CLL/SLL who have received prior therapy. To ensure relevance in the modern therapy context, a minimum of 80% of patients must have had a prior covalent BTKi. Approximately 600 patients will be randomized 1:1. Randomization will be stratified by 17p deletion (yes/no) and prior BTKi experience (discontinuation due to progressive disease vs due to other reasons vs no prior BTKi exposure). Eligible patients are adults with a diagnosis of CLL/SLL and requirement for therapy per iwCLL 2018 criteria who have received prior therapy that may or may not include a covalent BTKi. Unlimited number of lines of prior therapy are allowed. Key exclusion criteria include CNS involvement by CLL/SLL, Richter transformation at any time pre-enrollment, history of allogeneic stem cell transplant (SCT) or autologous SCT or chimeric antigen receptor (CAR) T-cell therapy within 60 days and prior therapy with a BCL2 inhibitor or non-covalent BTKi. The primary endpoint is progression-free survival (PFS) per iwCLL assessed by an independent review committee (IRC). Secondary endpoints include overall response rate (ORR), overall survival (OS), time to next treatment (TTNT), event-free survival (EFS), safety and tolerability, and patient-reported outcomes. This global study is currently enrolling patients (NCT04965493). Disclosures Mato: MSKCC: Current Employment; AstraZeneca: Consultancy; Nurix: Research Funding; AbbVie: Consultancy, Research Funding; Sunesis: Consultancy, Research Funding; Pharmacyclics LLC, an AbbVie Company: Consultancy, Research Funding; Janssen: Consultancy, Research Funding; LOXO: Consultancy, Research Funding; Adaptive Biotechnologies: Consultancy, Research Funding; BeiGene: Consultancy, Research Funding; Acerta/AstraZeneca: Consultancy, Research Funding; Genmab: Research Funding; DTRM BioPharma: Consultancy, Research Funding; Johnson and Johnson: Consultancy, Research Funding; TG Therapeutics: Consultancy, Other: DSMB, Research Funding; Genentech: Consultancy, Research Funding. Wierda: GSK/Novartis: Research Funding; Xencor: Research Funding; Genentech: Research Funding; Janssen: Research Funding; Cyclacel: Research Funding; Loxo Oncology, Inc.: Research Funding; Pharmacyclics LLC, an AbbVie Company: Research Funding; Karyopharm: Research Funding; Oncternal Therapeutics, Inc.: Research Funding; Miragen: Research Funding; Sunesis: Research Funding; KITE Pharma: Research Funding; Juno Therapeutics: Research Funding; Acerta Pharma Inc.: Research Funding; Gilead Sciences: Research Funding; Genzyme Corporation: Consultancy; AbbVie: Research Funding; AstraZeneca: Research Funding. Pagel: Pharmacyclics/AbbVie: Consultancy; Gilead: Consultancy; Epizyme: Consultancy; AstraZeneca: Consultancy; BeiGene: Consultancy; MEI Pharma: Consultancy; Kite, a Gilead Company: Consultancy; Incyte/MorphoSys: Consultancy; Actinium Pharmaceuticals: Consultancy. Davids: Astra-Zeneca: Consultancy, Research Funding; TG Therapeutics: Consultancy, Research Funding; AbbVie: Consultancy; Adaptive Biotechnologies: Consultancy; BeiGene: Consultancy; Celgene: Consultancy; Eli Lilly and Company: Consultancy; MEI Pharma: Consultancy; Merck: Consultancy; Research to Practice: Consultancy; Takeda: Consultancy; MEI Pharma: Consultancy, Research Funding; Janssen: Consultancy; Genentech: Consultancy, Research Funding; BMS: Consultancy, Research Funding; Novartis: Consultancy, Research Funding; Verastem: Consultancy, Research Funding; Ascentage Pharma: Consultancy, Research Funding; Pharmacyclics: Consultancy, Research Funding; Surface Oncology: Research Funding. Zinzani: ROCHE: Other, Speakers Bureau; KYOWA KIRIN: Other, Speakers Bureau; BMS: Other: Advisory board, Speakers Bureau; SERVIER: Other: Advisory board, Speakers Bureau; VERASTEM: Consultancy, Other: Advisory board, Speakers Bureau; SANDOZ: Other: Advisory board; NOVARTIS: Consultancy, Other, Speakers Bureau; Incyte: Other, Speakers Bureau; ADC Therap.: Other; MSD: Consultancy, Other: Advisory board, Speakers Bureau; JANSSEN-CILAG: Other: Advisory board, Speakers Bureau; TAKEDA: Other: Advisory board, Speakers Bureau; EUSAPHARMA: Consultancy, Other, Speakers Bureau; GILEAD: Other: Advisory board, Speakers Bureau; Beigene: Other, Speakers Bureau; TG Therapeutics: Other: Advisory board, Speakers Bureau; CELLTRION: Other: Advisory board, Speakers Bureau. Lu: Eli Lilly and Company: Current Employment, Current equity holder in publicly-traded company. Liu: Loxo Oncology at Lilly: Current Employment; AstraZeneca: Ended employment in the past 24 months. Shahda: Loxo Oncology at Lilly: Current Employment, Current equity holder in publicly-traded company. Leow: Loxo Oncology at Lilly: Current Employment, Current equity holder in publicly-traded company. Tam: Beigene: Honoraria; Loxo: Honoraria; Abbvie: Research Funding; Janssen: Research Funding; Beigene: Research Funding; Janssen: Honoraria; Abbvie: Honoraria. Woyach: AbbVie Inc, ArQule Inc, Janssen Biotech Inc, AstraZeneca, Beigene: Other: Advisory Committee; AbbVie Inc, ArQule Inc, AstraZeneca Pharmaceuticals LP, Janssen Biotech Inc, Pharmacyclics LLC, an AbbVie Company,: Consultancy; AbbVie Inc, Loxo Oncology Inc, a wholly owned subsidiary of Eli Lilly & Company: Research Funding; Gilead Sciences Inc: Other: Data & Safety. Eyre: Secura Bio: Consultancy, Honoraria; Abbvie: Consultancy, Honoraria, Other: Travel to conferences; AstraZeneca: Honoraria, Research Funding; Janssen: Honoraria; Gilead/KITE: Honoraria, Other: Travel support for conferences, Research Funding, Speakers Bureau; Incyte: Consultancy; Loxo Oncology: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; Roche: Consultancy, Honoraria; Beigene: Honoraria, Research Funding.

scholarly journals BRUIN CLL-321: A Phase 3 Open-Label, Randomized Study of Pirtobrutinib Versus Investigator's Choice of Idelalisib Plus Rituximab or Bendamustine Plus Rituximab in BTK Inhibitor Pretreated Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (Trial in Progress)

Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 3736-3736
Author(s):  
Jeff P. Sharman ◽  
Wojciech Jurczak ◽  
Catherine C. Coombs ◽  
Marisa Hill ◽  
Denise Wang ◽  
...  
Keyword(s):  
Board Of Directors ◽  
Stock Options ◽  
Research Funding ◽  
Lymphocytic Leukemia ◽  
Small Lymphocytic Lymphoma ◽  
Publicly Traded ◽  
Open Label ◽  
Phase 3 ◽  
Advisory Committees ◽  
Prior Therapy

Abstract Background: Covalent Bruton Tyrosine Kinase (BTK) inhibitors (BTKi) have transformed the management of patients with chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), but these treatments are not curative and many patients will require additional treatment. Covalent BTKi share pharmacologic liabilities (e.g. low oral bioavailability, short half-life) that collectively may lead to suboptimal BTK target coverage especially in rapidly proliferating tumors with high BTK protein turnover such as accelerating CLL/SLL, ultimately manifesting as acquired resistance in some patients. To address these limitations, pirtobrutinib, a highly selective, non-covalent BTKi that inhibits both wild type (WT) and C481-mutated BTK with equal low nM potency was developed. In the phase 1/2 BRUIN study, pirtobrutinib achieved pharmacokinetic exposures that exceeded its BTK IC96 at trough, was well tolerated and demonstrated promising efficacy in CLL/SLL patients regardless of prior therapy, number of prior lines of therapy, or BTK C481 mutation status (Mato et al. Lancet 2021;397,10277:892-901). The purpose of this randomized phase 3 study is to demonstrate the superiority of continued BTK pathway inhibition with pirtobrutinib compared to other available therapies in patients with BTKi-treated CLL/SLL. Study Design and Methods: BRUIN CLL-321 is a randomized, open-label, global phase 3 study comparing pirtobrutinib monotherapy versus investigator's choice of idelalisib plus rituximab or bendamustine plus rituximab in patients with CLL/SLL who have been treated with a prior covalent BTKi. Prior therapy with venetoclax is permitted. Approximately 250 patients will be randomized 1:1. Randomization will be stratified by 17p deletion (yes/no) and prior venetoclax (yes/no). Patients receiving investigator's choice are eligible to crossover to pirtobrutinib monotherapy if they experience progressive disease per iwCLL 2018 (determined by IRC). Eligible patients are adults aged ≥18 years with a diagnosis of CLL/SLL who require therapy per iwCLL 2018 criteria and who have received prior covalent BTKi. Unlimited number of lines of prior therapy are allowed. Key exclusion criteria include CNS involvement by CLL/SLL, Richter transformation any time pre-enrollment, a major bleeding event on prior covalent BTKi and history of allogeneic stem cell transplant (SCT) or autologous SCT or chimeric antigen receptor (CAR) T-cell therapy within 60 days of randomization. The primary endpoint is progression-free survival (PFS) per iwCLL assessed by an independent review committee (IRC). Secondary endpoints include overall survival (OS), overall response rate (ORR), duration of response (DoR), safety and tolerability, and patient reported outcomes. The global study is currently enrolling patients (NCT04666038). Disclosures Sharman: BeiGene: Consultancy; BMS: Consultancy; AstraZeneca: Consultancy; TG Therapeutics: Consultancy; Lilly: Consultancy; Pharmacyclics LLC, an AbbVie Company: Consultancy; Centessa: Current holder of stock options in a privately-held company, Membership on an entity's Board of Directors or advisory committees; AbbVie: Consultancy. Jurczak: Abbvie, AstraZeneca, BeiGene, Celtrion, Celgene, Debbiopharm, Epizyme, Incyte, Janssen, Loxo Oncology, Merck, Mei Pharma, Morphosys, Novo Nordisk, Roche, Sandoz, Takeda, TG Therapeutics: Research Funding; Astra Zeneca, BeiGene, Janssen, Loxo Oncology, Sandoz, Roche,: Membership on an entity's Board of Directors or advisory committees. Coombs: LOXO: Honoraria, Membership on an entity's Board of Directors or advisory committees; Novartis: Honoraria; AstraZeneca: Honoraria; AbbVie: Honoraria; Genentech: Honoraria; MEI Pharma: Honoraria. Hill: Loxo Oncology at Lilly: Current Employment. Wang: Loxo Oncology at Lilly: Current Employment. Ku: Loxo Oncology at Lilly: Current Employment, Current holder of stock options in a privately-held company. Guntur: Loxo Oncology at Lilly: Current Employment, Current equity holder in publicly-traded company. Shahda: Loxo Oncology at Lilly: Current Employment, Current equity holder in publicly-traded company. Leow: Loxo Oncology at Lilly: Current Employment, Current equity holder in publicly-traded company. Ghia: Gilead: Consultancy, Research Funding; Celgene/Juno/BMS: Consultancy, Honoraria; BeiGene: Consultancy, Honoraria; ArQule/MSD: Consultancy, Honoraria; AstraZeneca: Consultancy, Honoraria, Research Funding; Acerta/AstraZeneca: Consultancy, Honoraria, Research Funding; AbbVie: Consultancy, Honoraria, Research Funding; Janssen: Consultancy, Honoraria, Research Funding; Roche: Consultancy, Honoraria; Sunesis: Research Funding. Mato: Janssen: Consultancy, Research Funding; BeiGene: Consultancy, Research Funding; Nurix: Research Funding; MSKCC: Current Employment; Adaptive Biotechnologies: Consultancy, Research Funding; AbbVie: Consultancy, Research Funding; Johnson and Johnson: Consultancy, Research Funding; Sunesis: Consultancy, Research Funding; AstraZeneca: Consultancy; Genmab: Research Funding; LOXO: Consultancy, Research Funding; Acerta/AstraZeneca: Consultancy, Research Funding; Pharmacyclics LLC, an AbbVie Company: Consultancy, Research Funding; TG Therapeutics: Consultancy, Other: DSMB, Research Funding; DTRM BioPharma: Consultancy, Research Funding; Genentech: Consultancy, Research Funding.

scholarly journals BRUIN CLL-313: A Phase 3 Open-Label, Randomized Study of Pirtobrutinib Versus Bendamustine Plus Rituximab in Untreated Patients with Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (Trial in Progress)

Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 3732-3732
Author(s):  
Wojciech Jurczak ◽  
Caroline Dartigeas ◽  
Marta Coscia ◽  
Peter S. Ganly ◽  
Ghassan Al-Jazayrly ◽  
...  
Keyword(s):  
Chronic Lymphocytic Leukemia ◽  
Board Of Directors ◽  
Research Funding ◽  
Lymphocytic Leukemia ◽  
Small Lymphocytic Lymphoma ◽  
Publicly Traded ◽  
Open Label ◽  
Phase 3 ◽  
Advisory Committees ◽  
Mutation Status

Abstract Background: Covalent Bruton's Tyrosine Kinase (BTK) inhibitors (BTKi) have transformed the management of chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), but these treatments are not curative and the majority of patients will require additional treatment. Covalent BTKi share pharmacologic liabilities (e.g. low oral bioavailability, short half-life) that collectively may lead to suboptimal BTK target coverage, for example in rapidly proliferating tumors with high BTK protein turnover such as accelerating CLL/SLL, ultimately manifesting as acquired resistance in some patients. To address these limitations, pirtobrutinib, a highly selective, non-covalent BTKi that inhibits both wild type (WT) and C481-mutated BTK with equal low nM potency was developed. In a phase 1/2 BRUIN study, pirtobrutinib achieved pharmacokinetic exposures that exceeded its BTK IC96 at trough, was well tolerated, and demonstrated promising efficacy in CLL/SLL patients regardless of prior therapy, number of prior lines of therapy, or BTK C481 mutation status (Mato et al. Lancet 2021;397, 10277:892-901). Study Design and Methods: BRUIN CLL-313 is a randomized, open-label, global phase 3 study comparing pirtobrutinib monotherapy versus bendamustine plus rituximab (BR) in treatment naïve CLL/SLL patients with retained 17p. Approximately 250 patients will be randomized 1:1. Randomization will be stratified by IGHV mutation status (mutated vs unmutated), and Rai stage (low/intermediate vs high). Patients in the BR arm are eligible to crossover to pirtobrutinib monotherapy if they experience progressive disease per iwCLL 2018 and confirmed by an independent review committee (IRC). Eligible patients are adults with confirmed diagnosis of CLL/SLL and who require therapy per iwCLL 2018 criteria. Key exclusion criteria include CNS involvement by CLL/SLL, Richter transformation to DLBCL, prolymphocytic leukemia or Hodgkin lymphoma any time pre-enrollment, presence of 17p deletion, prior systemic therapy for CLL/SLL, and significant cardiovascular disease. The primary endpoint is progression-free survival (PFS) per iwCLL assessed by an IRC. Secondary endpoints include investigator-assessed PFS, overall survival (OS), overall response rate (ORR), duration of response (DoR), safety and tolerability, and patient reported outcomes. The global study is currently enrolling patients. Disclosures Jurczak: Abbvie, AstraZeneca, BeiGene, Celtrion, Celgene, Debbiopharm, Epizyme, Incyte, Janssen, Loxo Oncology, Merck, Mei Pharma, Morphosys, Novo Nordisk, Roche, Sandoz, Takeda, TG Therapeutics: Research Funding; Astra Zeneca, BeiGene, Janssen, Loxo Oncology, Sandoz, Roche,: Membership on an entity's Board of Directors or advisory committees. Dartigeas: Astra-Zeneca: Membership on an entity's Board of Directors or advisory committees, Other: travel grants/Congress; Abbvie: Membership on an entity's Board of Directors or advisory committees, Other: travel grants/Congress; Janssen: Membership on an entity's Board of Directors or advisory committees, Other: travel grants/Congress. Coscia: Gilead: Honoraria; AbbVie: Honoraria, Other; Janssen: Honoraria, Other, Research Funding; AstraZeneca: Honoraria. Wang: Eli Lilly and Company: Current Employment, Current equity holder in publicly-traded company. Bao: Loxo Oncology at Lilly: Current Employment; Genentech: Ended employment in the past 24 months. Leow: Loxo Oncology at Lilly: Current Employment, Current equity holder in publicly-traded company. Shahda: Loxo Oncology at Lilly: Current Employment, Current equity holder in publicly-traded company. Zinzani: Eusapharma: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Kyowa Kirin: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Merck: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Gilead: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Incyte: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; BMS: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Takeda: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Roche: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Servier: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Merck Sharp & Dohme: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; ADC Therapeutics: Consultancy, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Verastem: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Janssen Cilag: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Immune Design: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; TG Therapeutics: Honoraria, Speakers Bureau; Celtrion: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Sanofi: Consultancy; Beigene: 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; Abbvie: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Novartis: Consultancy, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Sandoz: Membership on an entity's Board of Directors or advisory committees; Portola: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Janssen: Consultancy, Honoraria, Speakers Bureau.

scholarly journals Majic: A Phase 3 Prospective, Multicenter, Randomized, Open-Label Trial of Acalabrutinib Plus Venetoclax Versus Venetoclax Plus Obinutuzumab in Previously Untreated Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma

Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 1553-1553
Author(s):  
Matthew S. Davids ◽  
Anthony R. Mato ◽  
Juliette Hum ◽  
Susana Wargo ◽  
Ugochinyere Emeribe ◽  
...  
Keyword(s):  
Research Funding ◽  
Lymphocytic Leukemia ◽  
Publicly Traded ◽  
Open Label ◽  
Phase 3 ◽  
Free Survival ◽  
The Past ◽  
History Of ◽  
Time Point ◽  
Privately Held

Abstract Background: Novel targeted agents, namely Bruton tyrosine kinase inhibitors (BTKis), B-cell leukemia/lymphoma-2 inhibitors (BCL-2is), and anti-CD20 monoclonal antibodies, have advanced chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) treatment beyond traditional chemoimmunotherapy. While 1-year fixed-duration venetoclax-obinutuzumab (VO) is effective, about 25% of patients do not achieve peripheral blood (PB) undetectable minimal residual disease (uMRD). This regimen contains intravenous therapy with obinutuzumab, which presents potential additional toxicities such as infusion reactions and tumor lysis syndrome as well as the potential inconvenience of an intravenous drug. Moreover, patients with higher-risk genomic features such as TP53-aberrant disease or unmutated IGHV have shorter progression-free survival (PFS) than lower-risk cohorts. Whether extending the course of venetoclax beyond 1 year in patients with detectable MRD improves PFS remains unknown. Preclinical data support combining BTKi and BCL-2i, and recent studies with the first-generation BTKi ibrutinib plus venetoclax (IV) have demonstrated deep/durable responses with uMRD rates similar to VO in previously untreated patients with CLL; however, toxicities of this regimen (e.g., cardiac events, neutropenia, etc.) may be challenging, particularly in older patients and those with comorbidities. Acalabrutinib, a highly selective next-generation BTKi, showed an improved safety profile versus ibrutinib in a phase 3 head-to-head trial in relapsed/refractory CLL, and was very effective and well tolerated in a phase 2 study combined with VO. We hypothesize that time-limited doublet therapy with acalabrutinib plus venetoclax (AV) would induce PFS and levels of uMRD similar to those of VO in treatment-naïve (TN) CLL/SLL irrespective of genomic risk features and offer the convenience and favorable tolerability of an all-oral regimen. Moreover, we hypothesize that MRD-guided therapy duration approach will help to define the optimal duration of therapy for both VO and AV. Methods: MAJIC is a phase 3, open-label, randomized, multicenter, global study evaluating AV vs VO in patients aged ≥18 years with TN CLL/SLL. The primary objective of the MAJIC trial is to evaluate investigator-assessed PFS of MRD-guided AV vs MRD-guided VO in a noninferiority design. Key secondary endpoints include uMRD rates at sequential time points, complete and overall response rate, event-free survival, overall survival, quality of life/patient-reported outcomes, and safety. After the screening period, approximately 600 patients will be randomized (1:1, with stratification by age, TP53, and IGHV status) to receive either AV: acalabrutinib (100 mg twice daily with 2 lead-in cycles) then combined with venetoclax introduced at cycle 3 (including dose ramp-up) for 12 cycles, or VO: intravenous obinutuzumab at standard dosing with venetoclax initiated per standard dosing at day 22 cycle 1 (including dose ramp-up) for 6 cycles, followed by 6 cycles of venetoclax monotherapy, for a total of 12 cycles of venetoclax therapy in both arms. Patients with detectable MRD (10 -5 sensitivity by clonoSEQ ® next-generation sequencing) at that time will continue therapy for an additional 12 cycles with either AV (acalabrutinib-containing cohort) or venetoclax monotherapy (for the VO cohort) for a total of 24 months of therapy in both arms, unless they experience progressive disease or unacceptable toxicity. All patients will discontinue study therapy after 24 months, regardless of MRD status at that time point. Response assessments including MRD will occur at the end of 12 months of venetoclax (and 24 months if receiving a second year of therapy) in both arms, and patients with PB uMRD by clonoSEQ at 10 -5 sensitivity at that time point will discontinue therapy. Further correlative studies such as association of baseline genetic markers with clinical outcomes and MRD kinetics will be conducted. Key exclusion criteria are clinically significant cardiovascular disease, history of bleeding diathesis, and history of significant cerebrovascular disease/event. Patient enrollment is to begin at the end of 2021. Summary: This trial in progress is to inform the choice of which of these doublet therapy approaches might be most appropriate for patients with previously untreated CLL/SLL without restriction by genetic background or age. Disclosures Davids: Eli Lilly and Company: Consultancy; BMS: Consultancy, Research Funding; Merck: Consultancy; Janssen: Consultancy; MEI Pharma: Consultancy; AbbVie: Consultancy; Surface Oncology: Research Funding; TG Therapeutics: Consultancy, Research Funding; Verastem: Consultancy, Research Funding; Research to Practice: Consultancy; Adaptive Biotechnologies: Consultancy; Takeda: Consultancy; BeiGene: Consultancy; Astra-Zeneca: Consultancy, Research Funding; Ascentage Pharma: Consultancy, Research Funding; Celgene: Consultancy; Pharmacyclics: Consultancy, Research Funding; Genentech: Consultancy, Research Funding; MEI Pharma: Consultancy, Research Funding; Novartis: Consultancy, Research Funding. Mato: DTRM BioPharma: Consultancy, Research Funding; AbbVie: Consultancy, Research Funding; BeiGene: Consultancy, Research Funding; Genmab: Research Funding; Nurix: Research Funding; Acerta/AstraZeneca: Consultancy, Research Funding; MSKCC: Current Employment; LOXO: Consultancy, Research Funding; AstraZeneca: Consultancy; Genentech: Consultancy, Research Funding; Janssen: Consultancy, Research Funding; Johnson and Johnson: Consultancy, Research Funding; Pharmacyclics LLC, an AbbVie Company: Consultancy, Research Funding; Sunesis: Consultancy, Research Funding; Adaptive Biotechnologies: Consultancy, Research Funding; TG Therapeutics: Consultancy, Other: DSMB, Research Funding. Hum: AstraZeneca: Current Employment. Wargo: AstraZeneca: Current Employment. Emeribe: AstraZeneca: Current Employment, Current holder of stock options in a privately-held company. Shahkarami: Astrazeneca: Current Employment, Divested equity in a private or publicly-traded company in the past 24 months. Sokolowski: AbbVie: Current Employment, Current equity holder in publicly-traded company, Divested equity in a private or publicly-traded company in the past 24 months. Biondo: Roche: Current holder of individual stocks in a privately-held company; Genentech, Inc.: Current Employment. Abhyankar: Genentech, Inc: Current Employment; Roche: Current equity holder in publicly-traded company. Hermann: AstraZeneca: Current Employment, Current equity holder in publicly-traded company. Sharman: AbbVie: Consultancy; AstraZeneca: Consultancy; BeiGene: Consultancy; BMS: Consultancy; Lilly: Consultancy; Centessa: Current holder of stock options in a privately-held company, Membership on an entity's Board of Directors or advisory committees; Pharmacyclics LLC, an AbbVie Company: Consultancy; TG Therapeutics: Consultancy. OffLabel Disclosure: Investigational study

scholarly journals First-line treatment of chronic lymphocytic leukemia with ibrutinib plus obinutuzumab versus chlorambucil plus obinutuzumab: final analysis of the randomized, phase 3 iLLUMINATE trial

Haematologica ◽  
2022 ◽  
Author(s):  
Carol Moreno ◽  
Richard Greil ◽  
Fatih Demirkan ◽  
Alessandra Tedeschi ◽  
Bertrand Anz ◽  
...  
Keyword(s):  
Chronic Lymphocytic Leukemia ◽  
Final Analysis ◽  
Lymphocytic Leukemia ◽  
Small Lymphocytic Lymphoma ◽  
First Line ◽  
Open Label ◽  
Phase 3 ◽  
First Line Therapy ◽  
Line Therapy ◽  
Open Label Phase

iLLUMINATE is a randomized, open-label phase 3 study of ibrutinib plus obinutuzumab (n=113) versus chlorambucil plus obinutuzumab (n=116) as first-line therapy for patients with chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma. Eligible patients were aged ≥65 years, or

scholarly journals A Phase 2, Randomized, Open-Label, 2-Arm Study Comparing 2 Intermittent Dosing Schedules of Duvelisib in Patients with Indolent Non-Hodgkin Lymphoma (iNHL) (TEMPO)

Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. 5251-5251
Author(s):  
Reem Karmali ◽  
Hagop Youssoufian ◽  
Kam Sprott ◽  
David T. Weaver ◽  
Narayana Narasimhan ◽  
...  
Keyword(s):  
Response Rate ◽  
Advisory Board ◽  
Small Lymphocytic Lymphoma ◽  
Open Label ◽  
Employment Equity ◽  
Drug Induced ◽  
Prior Therapy ◽  
History Of ◽  
Equity Ownership ◽  
Systemic Therapies

Background Duvelisib, an oral dual PI3K-δ and PI3K-γ inhibitor, is approved by the US Food and Drug Administration for the treatment of adult patients with relapsed or refractory (R/R) follicular lymphoma (FL) after ≥ 2 prior systemic therapies. In multiple phase 1-3 studies that included patients with iNHL, duvelisib was shown to be efficacious, with a favorable risk-benefit profile. This study will evaluate whether duvelisib efficacy at the approved 25 mg twice daily (BID) dose can be achieved and maintained with an acceptable or improved safety profile by the inclusion of prespecified 2-week drug holidays in patients with R/R iNHL. Study Design and Methods TEMPO is a randomized, open-label, multicenter, international, phase 2 study of duvelisib in adult patients with R/R iNHL in whom ≥ 1 line of prior therapy has failed. The primary objective is to evaluate the efficacy of duvelisib administered with prescribed drug holidays, with the primary endpoint of overall response rate (ORR) by the 2007 revised International Working Group criteria. Key secondary endpoints include ORR by the 2014 Lugano criteria, progression-free survival, overall survival, time to treatment failure, duration of response, lymph node response rate, time to the first response, adverse event profile, and determination of pharmacokinetics parameters. Exploratory objectives include assessment of quality of life and biomarkers of treatment response and toxicity. Key inclusion criteria include histologically confirmed FL grades 1 to 3a, marginal zone lymphoma (splenic, nodal, or extranodal) or small lymphocytic lymphoma, radiological evidence of disease progression and ≥ 1 bidimensionally measurable lesion ≥ 1.5 cm, adequate organ function, and Eastern Cooperative Oncology Group performance status ≤ 2. Key exclusion criteria include prior allogeneic hematopoietic stem cell transplant; previous treatment with a PI3K inhibitor; history of drug-induced colitis or drug-induced pneumonitis; ongoing treatment for systemic infection; central nervous system NHL; prolonged QT interval; history of tuberculosis treatment within the 2 past years; history of stroke, unstable angina, myocardial infarction, or ventricular arrhythmia requiring medication or mechanical control within the past 6 months; history of or concurrent interstitial lung disease of any severity and/or severely impaired lung function; ongoing treatment with chronic immunosuppressants; and any unstable or severe uncontrolled medical condition. A total of 102 patients are planned to be enrolled. Patients will be randomized 1:1 to 2 arms and stratified by number of prior therapies (1 or > 1), bulky disease status (longest diameter of baseline lesion < 5 cm or ≥ 5 cm), and time since last recurrence (≥ 24 months or < 24 months). In arm 1, patients will receive duvelisib 25 mg BID for one 10-week (W) cycle followed by 25 mg BID on W3 and W4 of each subsequent 4-week cycle. In arm 2, patients will receive duvelisib 25 mg BID on W1, W2, W5, W6, W9, and W10 of one 10-week cycle and then on W3 and W4 of each subsequent 4-week cycle. Patients will be treated until disease progression, unacceptable toxicity, or withdrawal. This study will test the null hypothesis that the ORR in each arm is ≤ 30% against the alternative that the ORR is ≥ 55%. The study has a 2-stage design. In stage 1, 15 patients will be enrolled in each arm, with response assessment after ≥ 3 cycles. If there are fewer than 6 partial or complete responses, consideration may be given to terminating the arm. Otherwise, in stage 2, 36 additional patients will be enrolled, for a total of 51 per arm. Enrollment is planned to be initiated in August 2019. Approximately 50 sites will be open for enrollment across the United States, Europe, and Asia. Disclosures Karmali: Takeda, BMS: Other: Research Funding to Institution; Gilead/Kite; Juno/Celgene: Consultancy, Speakers Bureau; Astrazeneca: Speakers Bureau. Youssoufian:Verastem Oncology: Consultancy, Equity Ownership. Sprott:SMOC Therapeutics: Employment, Equity Ownership; Verastem Oncology: Employment, Equity Ownership. Weaver:FemtoDx: Consultancy, Equity Ownership, Membership on an entity's Board of Directors or advisory committees, Patents & Royalties: Inventor; Verastem Oncology: Employment, Equity Ownership, Patents & Royalties: Inventor; Hillstream Biopharma: Consultancy, Equity Ownership. Narasimhan:Verastem: Employment, Equity Ownership. Lustgarten:Verastem: Employment. Patrick:Verastem Oncology: Employment. Zalutskaya:Verastem Inc: Employment, Equity Ownership. Gordon:Gilead: Other: Advisory Board; Juno/Celgene: Other: Advisory Board, Research Funding; Zylem LLC: Other: co-founder; research in nanoparticles in cancer; Bayer: Other: Advisory Board. OffLabel Disclosure: Duvelisib (DUV), a dual PI3K-delta,gamma inhibitor, is US FDA approved at 25 mg twice daily (BID) for the treatment of R/R chronic lymphocytic leukemia or small lymphocytic lymphoma after at least 2 lines of prior therapy and R/R follicular lymphoma after at least two prior systemic therapies.

Fostamatinib for the Treatment of Warm Antibody Autoimmune Hemolytic Anemia (wAIHA): A Phase 3, Randomized, Double-Blind, Placebo-Controlled, Global Study

Blood ◽  
2020 ◽  
Vol 136 (Supplement 1) ◽  
pp. 1-3
Author(s):  
Nichola Cooper ◽  
Robert P. Numerof ◽  
Sandra Tong ◽  
David J. Kuter
Keyword(s):  
Research Funding ◽  
Rescue Therapy ◽  
Phase 2 ◽  
Publicly Traded ◽  
Open Label ◽  
Phase 3 ◽  
Double Blind ◽  
Double Blind Placebo ◽  
Phase 2 Study ◽  
Syk Inhibitor

Background. Warm antibody autoimmune hemolytic anemia (wAIHA) is a rare disorder that can be potentially serious. In wAIHA, autoantibodies react with protein antigens on red blood cells (RBCs) at body temperature, leading to RBC phagocytosis and destruction by Fcg receptor-bearing macrophages in a spleen tyrosine kinase (SYK) dependent signaling pathway (see figure). Fostamatinib is a potent oral SYK inhibitor, approved for the treatment of chronic immune thrombocytopenia (ITP). Fostamatinib prevents platelet destruction in ITP through inhibition of SYK-dependent platelet phagocytosis by Fcγ receptor-bearing macrophages. Fostamatinib was evaluated in a phase 2, open-label, multicenter study (NCT02612558) for the treatment of wAIHA. Results of the study demonstrated that 11 of 25 (44%) patients had markedly improved hemoglobin (Hgb) levels after fostamatinib treatment. Adverse events (AEs) were consistent with those in the fostamatinib safety database of &gt;4000 patients across multiple diseases. Based on the results of the phase 2 study, a phase 3 randomized, double-blind, placebo-controlled, global study (NCT03764618) was initiated to investigate the safety and efficacy of fostamatinib in patients with wAIHA. The phase 3 study began enrolling patients this year and intends to enroll approximately 90 patients at 103 sites in 22 countries across North America, Europe, and Australia. This is the first randomized, double-blind, placebo-controlled, phase 3 study to evaluate a SYK inhibitor for the treatment of wAIHA (see diagram). Study Design and Methods Inclusion Criteria include: Age ≥18;Diagnosis of primary or secondary wAIHA (documented by an IgG or IgA positive direct antiglobulin test [DAT]);failure of ≥1 prior treatment for wAIHA;Haptoglobin &lt;LLN (lower limit of normal) or total bilirubin &gt;ULN (upper limit of normal) or lactate dehydrogenase (LDH) &gt;ULN;Baseline hemoglobin level ≤9 g/dL or, if hemoglobin is &gt;9 g/dL to &lt;10 g/dL, subject must be on a permitted wAIHA treatment AND have symptoms associated with anemia. Exclusion Criteria include: Presence of other forms of AIHA;Uncontrolled or insufficiently controlled hypertension;Neutrophil count &lt;1,000/µL,Platelet count &lt;30,000/μL (unless patient has Evans syndrome);Transaminase levels &gt;1.5 x ULN. Eligible patients will be randomized 1:1 to fostamatinib or placebo for 24 weeks. Randomization will be stratified by concomitant steroid use and severity of anemia at baseline. The starting dose of fostamatinib is 100 mg BID and will be increased to 150 mg BID at Week 4, based on tolerability. The dose may be reduced in the event of dose-limiting AEs. At screening, patients may continue selected concurrent wAIHA therapies including steroids (maximum of 2 therapies) throughout the 24-week study period. A steroid taper protocol will allow reduced used of steroids in patients who have a hemoglobin response. Rescue therapy will be allowed as needed. Patients who complete the phase 3 study can rollover to an open-label extension study. The efficacy endpoints will include hemoglobin response, defined as a hemoglobin level ≥10 g/dL with a ≥2 g/dL increase from baseline (Day 1) in the absence of rescue therapy; duration of hemoglobin response; and the need for wAIHA rescue treatment. The safety endpoints will include the incidence of adverse events. Patients will be evaluated in the clinic, including safety and laboratory assessments, at two-week intervals. Statistics: A sample size of 90 subjects (randomized 1:1) would be required to provide 80% power to detect a difference in the response between the active and placebo groups using the Cochran-Mantel-Haenszel test at a two-sided significance level of 0.05 (based on results of the phase 2 study). The response rate will be compared between groups using a chi-square test adjusted for randomization stratification factors. Current enrollment status: As of July 2, 2020, 83 sites are open to screening (subject to local regulations about the COVID-19 pandemic), and 43 patients have been randomized. Most patients (88%) had primary wAIHA, 12% had secondary disease including chronic lymphocytic leukemia, monoclonal B cell lymphocytosis, scleroderma, smoldering Waldenström's macroglobulinemia, and systemic lupus erythematosus in 1 patient each. The median age at baseline is 61 years (range 28-87), and 63% are female. Figure Disclosures Cooper: Amgen: Honoraria, Speakers Bureau; Novartis: Honoraria, Speakers Bureau. Numerof:Rigel: Current Employment, Current equity holder in publicly-traded company. Tong:Rigel: Current Employment, Current equity holder in publicly-traded company. Kuter:Incyte: Consultancy, Honoraria; Genzyme: Consultancy, Honoraria; Immunovant: Consultancy, Honoraria; Momenta: Consultancy, Honoraria; Novartis: Consultancy, Honoraria; Dova: Consultancy, Honoraria; Merck Sharp Dohme: Consultancy, Honoraria; UCB: Consultancy, Honoraria; Up-To-Date: Consultancy, Honoraria, Patents & Royalties; Zafgen: Consultancy, Honoraria; Sanofi (Genzyme): Consultancy, Honoraria; Shionogi: Consultancy, Honoraria; Shire: Consultancy, Honoraria; Principia: Consultancy, Research Funding; Protalix Biotherapeutics: Consultancy; Shionogi: Consultancy; Actelion (Syntimmune): Consultancy, Honoraria, Other: Travel Expenses, Research Funding; Daiichi Sankyo: Consultancy, Honoraria; Agios: Consultancy, Honoraria, Other: Travel Expenses, Research Funding; Alnylam: Consultancy, Honoraria, Other: Travel Expenses, Research Funding; Amgen: Consultancy, Honoraria, Other: Travel Expenses, Research Funding; Argenx: Consultancy, Honoraria, Other: Travel Expenses, Research Funding; Bristol-Myers Squibb: Consultancy, Honoraria, Other: Travel Expenses, Research Funding; Immunovant: Other: Travel Expenses, Research Funding; Caremark: Consultancy, Honoraria; CRICO: Consultancy, Honoraria; Kezar Life Sciences, Inc: Other, Research Funding; Principia Biopharma: Consultancy, Honoraria, Other, Research Funding; Protalex: Consultancy, Honoraria, Other, Research Funding; Rigel: Consultancy, Honoraria, Other, Research Funding; Takeda (Bioverativ): Consultancy, Honoraria, Other, Research Funding; Protalex: Consultancy, Honoraria, Research Funding; Kyowa-Kirin: Consultancy, Honoraria; Pfizer: Consultancy, Honoraria; Platelet Disorder Support Association: Consultancy, Honoraria.

scholarly journals Efficacy and Safety of Pegcetacoplan Treatment in Complement-Inhibitor Naïve Patients with Paroxysmal Nocturnal Hemoglobinuria: Results from the Phase 3 Prince Study

Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 606-606
Author(s):  
Raymond S Wong ◽  
Juan Ramon Navarro ◽  
Narcisa Sonia Comia ◽  
Yeow Tee Goh ◽  
Henry Idrobo ◽  
...  
Keyword(s):  
Research Funding ◽  
Complement Inhibitor ◽  
Publicly Traded ◽  
Open Label ◽  
Phase 3 ◽  
Complement Inhibitors ◽  
Primary Endpoints ◽  
Secondary Endpoints ◽  
Peg Treatment ◽  
Inhibitor Treatment

Abstract Background: Paroxysmal nocturnal hemoglobinuria (PNH) is a rare and life-threatening disease characterized by hemolysis and thrombosis. Many patients with PNH use C5-inhibitors (i.e., eculizumab/ravulizumab) to control their symptoms. Although C5-inhibition prevents intravascular hemolysis (IVH), it fails to prevent extravascular hemolysis (EVH). Because of persistent EVH, up to 72% of eculizumab-treated patients remain anemic, and up to 36% require at least one transfusion per year. Pegcetacoplan (PEG), a C3-inhibitor recently approved by the US FDA to treat adults with PNH, controls IVH and prevents EVH. Studies of PEG treatment in patients with PNH that remained anemic despite eculizumab treatment demonstrated that PEG was superior to eculizumab in achieving improvements in hemoglobin (Hb) levels (Hillmen P, et al., N Engl J Med, 2021 384 (11):1028-1037). Additionally, two early phase open-label trials demonstrated the efficacy of PEG in complement-inhibitor naïve patients with PNH (Wong RS, et al., Blood, 2020 136 [Supplement 1]). Aims: To present results from the Phase 3 PRINCE study (NCT04085601), a multicenter, randomized, open-label, controlled study evaluating the efficacy and safety of PEG compared to standard of care (SOC; excluding complement-inhibitors) in complement-inhibitor naïve patients with PNH. Methods: Fifty-three adult (≥18 years old), complement-inhibitor naïve (no complement-inhibitor treatment [i.e., eculizumab/ravulizumab] within 3 months prior to screening) patients with PNH and Hb levels below the lower limits of normal (males: ≤13.6 g/dL; females: ≤12.0 g/dL), and lactate dehydrogenase (LDH) levels ≥1.5 times the upper limit of normal (1.5x ULN; ≥339 U/L) were enrolled. Patients were randomized 2:1 to receive PEG (1080 mg subcutaneously twice weekly [n=35]) or SOC (excluding complement-inhibitors eculizumab/ravulizumab [n=18]) through Week 26. Patients on SOC had the option to switch to the PEG group if their Hb decreased by ≥2 g/dL from baseline. Co-primary endpoints were Hb stabilization (avoidance of a &gt;1 g/dL decrease in Hb levels in the absence of transfusions) and change from baseline (CFB) in LDH level from baseline to Week 26. Secondary endpoints included CFB in Hb levels, transfusion avoidance (defined as the proportion of subjects who did not require a transfusion through Week 26), and the incidence of adverse events (AEs). Statistical analyses were performed using the Cochran-Mantel-Haenszel test and ANCOVA model. Results: PEG was superior to SOC in both co-primary endpoints. Hb stabilization was achieved by 85.7% (n=30) of PEG-treated patients and 0.0% of SOC patients through Week 26 (p&lt;0.0001). PEG-treated patients demonstrated superior reductions in mean LDH levels from baseline to Week 26 compared to SOC patients (least-squares mean CFB: PEG, -1870.5 U/L; SOC, -400.1 U/L; p&lt;0.0001), and mean LDH levels in PEG-treated patients at Week 26 (mean level: 204.6 U/L) were below the ULN for LDH (226.0 U/L). PEG was also superior to SOC in the secondary endpoints: mean CFB in Hb levels (least-squares mean CFB: PEG, 2.9 g/dL; SOC, 0.3 g/dL; p=0.0019; Week 26 mean Hb: PEG, 12.8 g/dL; SOC, 9.8 g/dL) (Figure) and transfusion avoidance (PEG, 91.4%, n=32; SOC, 5.6%, n=1; p&lt;0.0001). Serious AEs were reported by 8.7% (n=4) of PEG-treated patients and 16.7% (n=3) of SOC patients through Week 26. Two deaths (PEG, 2.9%, n=1, septic shock related to medullary aplasia; SOC, 5.6%, n=1, respiratory failure), both deemed unrelated to treatment, occurred. No events of meningitis or thrombosis were reported in either group. The most common AEs reported during the study were injection site reaction (PEG, 30.4%, n=14; SOC, 0.0%), hypokalemia (PEG, 13.0%, n=6; SOC, 11.1%, n=2), and fever (PEG, 8.7%, n=4; SOC, 0.0%). There were no AEs leading to discontinuation of PEG. Conclusions: Patients with PNH that were naïve to complement-inhibitor treatment demonstrated meaningful hematological and clinical improvements following 26 weeks of PEG treatment. The safety profile of PEG was similar to previous study results and represent a favorable risk-benefit profile. These results provide evidence for the safety and efficacy of PEG treatment in complement-inhibitor naïve patients with PNH. Figure 1 Figure 1. Disclosures Wong: Roche: Consultancy, Honoraria, Research Funding, Speakers Bureau; Apellis Pharmaceuticals: Research Funding, Speakers Bureau; Alexion: Consultancy, Honoraria, Research Funding, Speakers Bureau. Al-Adhami: Apellis Pharmaceuticals: Current Employment. Ajayi: Apellis Pharmaceuticals: Current Employment, Current equity holder in publicly-traded company. Alvarenga: Apellis Pharmaceuticals: Consultancy. Deschatelets: Apellis Pharmaceuticals: Current Employment, Current equity holder in publicly-traded company, Membership on an entity's Board of Directors or advisory committees, Patents & Royalties. Francois: Apellis Pharmaceuticals: Current Employment, Current equity holder in publicly-traded company. Grossi: Apellis Pharmaceuticals: Current Employment, Current equity holder in publicly-traded company.

A Phase II Trial of Ofatumumab for Older Patients and Patients Who Refuse Fludarabine-Based Regimens with Previously Untreated Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma,

Blood ◽  
2011 ◽  
Vol 118 (21) ◽  
pp. 3912-3912
Author(s):  
Ian W. Flinn ◽  
William N. Harwin ◽  
Inés M. Macias-Pérez ◽  
Patrick S. Tucker ◽  
David M. Waterhouse ◽  
...  
Keyword(s):  
Chronic Lymphocytic Leukemia ◽  
Maintenance Therapy ◽  
Older Patients ◽  
Research Funding ◽  
Single Agent ◽  
Progression Free Survival ◽  
Lymphocytic Leukemia ◽  
Front Line ◽  
Small Lymphocytic Lymphoma ◽  
Free Survival

Abstract Abstract 3912 Background: Fludarabine (FLU), cyclophosphamide and rituximab (FCR) or other FLU-based regimens have shown improvement in response rates, progression-free survival, and in some studies overall survival in patients with previously untreated chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL). However, a randomized trial of older patients demonstrated no improvement in progression-free and overall survival with FLU-based therapy (Eichhorst BF, et al: Blood 114; 3382, 2009). A recent retrospective analysis of serial CALGB trials (Woyach J, et al: ASH 2011) confirmed the lack of PFS and OS advantage of fludarabine in elderly patients but did find benefit of the anti-CD20 antibody rituximab across all age groups. Ofatumumab (OFA) is a fully human immunoglobulin G1 kappa, monoclonal antibody that targets a unique epitope on the CD20 molecule. Pre-clinical data indicate that OFA has greater NK cell and monocyte-mediated killing, complement-dependent cytotoxicity and direct killing against CLL cells. Based on pre-clinical and clinical studies indicating possible increased efficacy of OFA in patients with CLL, our aim was to develop an antibody-only regimen for older patients and patients who refuse FLU-based regimens. Methods: Eligible patients had previously untreated, symptomatic CD20+ B-cell chronic lymphocytic leukemia (B-CLL) or small lymphocytic lymphoma (SLL), ECOG PS of ≤ 2, and were either ≥ 65 years of age, or patients 18–64 years of age who had declined FLU-based regimens. All patients in this study received OFA as an IV infusion once weekly for a total of 8 weeks. To reduce the possibility of infusion reactions, the first dose of OFA was administered at a dose of 300 mg. If the initial 300-mg dose of OFA was well tolerated, without occurrence of any infusion associated AEs of ≥ grade 3, subsequent doses of OFA (i.e., Week 2 through Week 8) were given at a dose of 2000 mg. Eight weeks after the 8-week study treatment period ended, patients were assessed for response to the treatment. Patients who progressed received no further treatment. Patients who responded to the treatment or who did not have disease progression received maintenance therapy consisting of OFA at a dose of 2000 mg IV every 2 months for 2 years (for a total of 12 doses, in the absence of PD or intolerable toxicity) beginning 3 months after the last dose of OFA. Results: Between 8/2010 and 4/2011, 42 patients were enrolled and are included in this analysis. Patients were 57% male with median age 69 yrs (range: 47–88 yrs). Fourteen patients (33%) were < age 65. All but 1 patient had CLL; 1 patient had SLL. The median WBC at study entry was 41.1 (range 1.7–236.5). Rai stage at entry to study was Stage 0 = 8, Stage I = 8, Stage II – 4, Stage III – 10, Stage IV – 11. Interphase cytogenetics demonstrated 2/42 (5%) 17p-, 4/42 (10%) 11q-, 11/42 (26%) trisomy 12, 9/42 (21%) normal, 14/42 (33%) 13q-, and 2 (5%) unknown. To-date, 41 (98%) patients remain on study and 35 have completed 8 weeks of initial therapy with 24 (57%) having already begun maintenance therapy. Lymphocyte count normalized in 85% of patients at the end of the initial 8 weeks of therapy. Thirty patients have been evaluated for response according to IWCLL criteria (Hallek 2008): 13 patients (44%) achieved an objective response (CR, 0; PR, 13); 16 (53%) patients had SD; 1 patient (3%) had PD. SAEs were infrequent with 2 patients hospitalized for unrelated events: g2 fracture, g3 chest pain, g3 hematoma and g4 pulmonary emboli; 2 patients hospitalized for events possibly OFA-related had g2 fever, g3 anemia and g3 pneumonia. Only 1 patient experienced significant infusion-related toxicity that required repeat administration of the initial 300-mg dose instead of dose escalation at dose 2. Baseline FcγR polymorphisms for patients enrolled are currently being analyzed and will be presented. Conclusion: Single-agent OFA is a highly active and well tolerated front-line therapy for older patients with CLL or patients refusing FLU as evidenced by both early response and also ability of virtually all patients to proceed to maintenance therapy. A low incidence of serious infusion toxicity, infectious morbidity and other heme / non-heme toxicities was observed. Continued long-term assessment will further characterize the toxicity and efficacy of this single-agent OFA regimen in patients with CLL, as well as overall and progression-free survival rates. Disclosures: Flinn: GSK: Research Funding. Off Label Use: Ofatumumab in front-line CLL. Jones:Abbott Labs: Research Funding; GSK: Consultancy.

Outcome of Patients with Complex Karyotype in a Phase 3 Randomized Study of Idelalisib Plus Rituximab for Relapsed Chronic Lymphocytic Leukemia

Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 192-192 ◽  
Author(s):  
Karl-Anton Kreuzer ◽  
Richard R. Furman ◽  
Stephan Stilgenbauer ◽  
Ronald L. Dubowy ◽  
Yeonhee Kim ◽  
...  
Keyword(s):  
Overall Survival ◽  
Research Funding ◽  
Randomized Study ◽  
Progression Free Survival ◽  
Lymphocytic Leukemia ◽  
Employment Equity ◽  
Phase 3 ◽  
Free Survival ◽  
Equity Ownership ◽  
To Receive

Abstract Introduction: Complex karyotype (CKT), defined as the presence of ≥3 chromosomal aberrations, is emerging as an adverse prognostic factor in chronic lymphocytic leukemia (CLL) (Thompson et. al., Cancer 2015; Herling et. al., Blood, 2016). Idelalisib (IDELA) is a selective PI3Kd inhibitor approved for use in patients (pts) with relapsed CLL. A phase 3 randomized study of rituximab (R) plus IDELA or placebo (PBO) in pts with relapsed CLL and comorbidities (NCT1539512) demonstrated superior progression-free survival (PFS) and overall survival (OS) in the IDELA arm (Furman et. al. NEJM 2014). This report examines the effect of CKT on long-term outcome in that study. Methods: Key eligibility criteria included CLL requiring therapy after progression within 24 months of last therapy, and being unfit to receive cytotoxic therapy. Pts were randomized to receive IDELA at 150 BID (n = 110) or PBO (n = 110) in combination with R at 375 mg/m2 (first dose) and then 500 mg/m2 q2 weeks x 4, followed by q4 weeks x 3 (8 doses total). After progression, prior PBO+R pts could enroll into an extension study to receive IDELA at 150 mg BID. The primary endpoint of PFS was assessed by an IRC using standard criteria (Hallek et. al. Blood 2008; Blood 2012; Cheson et. al. J Clin Oncol 2012). After the first prespecified interim analysis, with median IDELA exposure time of 3.8 months, the study was stopped due to overwhelming difference in efficacy and pts on PBO arm were offered open-label IDELA on the extension study. Baseline peripheral blood samples for karyotype analysis, TP53 mutation (mut), and FISH for del(17p) were analyzed by central labs. Metaphase spreads were produced after IL-2/CpG-stimulated cell cultivation and karyotypes were analyzed per ISCN 2013 nomenclature. Results: Based on geography, two labs received a total of 283 screening blood samples and prepared metaphase spreads, with one lab completing the karyotypic analyses. The overall karyotypic success rate was 65%, but was 98% for samples initially processed in one of the labs. Karyotypes were successfully performed in 127 of 220 randomized pts. The median follow-up for karyotyped IDELA and PBO pts was 21.4 months (range 0.3-39.4) and 12.0 months (range 0.2-35.8), respectively. CKT and non-CKT were found in 26 and 39 IDELA pts and 24 and 38 PBO pts, respectively. Overall, 16 IDELA pts and 15 PBO pts had del(17p)/TP53mut along with CKT. Within the IDELA group: the overall response rate (ORR) was 80.8% (95% CI 60.6-93.4) with CKT and 89.7% (95% CI 75.8-97.1) with non-CKT; the median PFS was 20.9 months in CKT vs 19.4 in non-CKT, HR = 1.18 (p = 0.63); the med OS was NR vs NR in CKT vs non-CKT, HR = 1.78 (95%CI 0.69-4.64; p = 0.23). The presence or absence of del(17p)/TP53mut and CKT status did not significantly affect PFS or OS in pts randomized to IDELA (Figure 1). Prior to crossover, the median PFS for IDELA vs PBO pts with CKT was NR vs 3.7 months, HR = 0.16 (p <0.001) and for those with non-CKT was 19.4 vs 6.5 months, HR = 0.10 (p <0.001). Median OS for IDELA vs PBO pts with CKT was NR vs 9.2 months, HR = 0.31 (p = 0.005) and for those with non-CKT was NR vs NR, HR = 0.47 (p = 0.065). Conclusion:In this first systematic evaluation of CKT in relapsed CLL, CKT was found in 44% of 185 successfully karyotyped screened patients, including 37% of those randomized on study. This post hoc exploratory analysis demonstrates the lack of any adverse prognostic effect of CKT on IDELA-treated patients with respect to PFS or OS, and there was no significant difference among subsets of these pts with and without del(17p)/TP53mut. As previously reported in the entire study intention-to-treat population, a survival and PFS advantage was imparted by the addition of IDELA to R in pts with CKT. Detailed analyses including other clinical and prognostic parameters will be presented. Figure Progression-Free Survival and Overall Survival in Patients Randomized to Idelalisib Figure. Progression-Free Survival and Overall Survival in Patients Randomized to Idelalisib Figure Figure. Disclosures Kreuzer: Gilead Sciences: Consultancy, Honoraria, Research Funding, Speakers Bureau; Roche Pharma GmbH and Mundipharma GmbH: Consultancy, Honoraria, Research Funding, Speakers Bureau. Furman:Abbvie: Consultancy, Honoraria; Gilead Sciences: Consultancy; Janssen: Consultancy; Pharmacyclics: Consultancy, Speakers Bureau; Genentech: Consultancy. Stilgenbauer:Boehringer Ingelheim: Consultancy, Honoraria, Other: Travel grants , Research Funding; Amgen: Consultancy, Honoraria, Other: Travel grants, Research Funding; Genzyme: Consultancy, Honoraria, Other: Travel grants , Research Funding; Gilead: Consultancy, Honoraria, Other: Travel grants , Research Funding; Janssen: Consultancy, Honoraria, Other: Travel grants , Research Funding; AbbVie: Consultancy, Honoraria, Other: Travel grants, Research Funding; Genentech: Consultancy, Honoraria, Other: Travel grants , Research Funding; GSK: Consultancy, Honoraria, Other: Travel grants , Research Funding; Celgene: Consultancy, Honoraria, Other: Travel grants , Research Funding; Mundipharma: Consultancy, Honoraria, Other: Travel grants , Research Funding; Novartis: Consultancy, Honoraria, Other: Travel grants , Research Funding; Pharmacyclics: Consultancy, Honoraria, Other: Travel grants , Research Funding; Hoffmann-La Roche: Consultancy, Honoraria, Other: Travel grants , Research Funding; Sanofi: Consultancy, Honoraria, Other: Travel grants , Research Funding. Dubowy:Gilead Sciences: Employment, Equity Ownership. Kim:Gilead Sciences: Employment, Equity Ownership. Munugalavadla:Gilead Sciences: Employment, Equity Ownership. Pettitt:Celgene: Speakers Bureau; Infinity: Research Funding; Gilead: Research Funding, Speakers Bureau; Roche: Research Funding, Speakers Bureau. Hallek:Gilead Sciences: Research Funding, Speakers Bureau.

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