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Robak P, Robak T. Immunotherapy combinations for chronic lymphocytic leukemia: advantages and disadvantages. Expert Opin Biol Ther 2023; 23:21-35. [PMID: 36374125 DOI: 10.1080/14712598.2022.2145881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In the last few years, BTK inhibitors, PI3K inhibitors, and venetoclax have been approved for clinical use against chronic lymphocytic leukemia (CLL), both as single agents, and in combination. This article summarizes recent achievements in the treatment of patients with CLL, and pays special attention to novel targeted drugs and monoclonal antibodies (Mabs). A literature search was conducted of the PubMed and Google Scholar databases. Rituximab and obinutuzumab have been combined with chemotherapy, and more recently, with BTK inhibitors, PI3K inhibitors, and venetoclax. These agents have demonstrated high activity in treatment naïve (TN) and relapsed or refractory (RR) CLL. Immunochemotherapy regimens are currently considered in TN younger patients with IGHV-mutated disease and should not be given in patients without IGHV mutation. BTK inhibitors are more commonly used as monotherapy in TN and RR patients. PI3K inhibitors can be combined with CD20 Mabs, but their use in CLL is limited due to safety concerns. Venetoclax is typically combined with anti-CD20 Mabs in CLL. Generally, the optimal sequencing of therapies remains to be established, and the selection of upfront therapy needs to be tailored to the individual patient.
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Affiliation(s)
- Pawel Robak
- Department of Experimental Hematology, Medical University of Lodz, Łódź, Poland
| | - Tadeusz Robak
- Department of Hematology, Medical University of Lodz, Łódź, Poland
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Visentin A, Mauro FR, Catania G, Fresa A, Vitale C, Sanna A, Mattiello V, Cibien F, Sportoletti P, Gentile M, Rigolin GM, Quaglia FM, Murru R, Gozzetti A, Molica S, Marchetti M, Pravato S, Angotzi F, Cellini A, Scarfò L, Reda G, Coscia M, Laurenti L, Ghia P, Foà R, Cuneo A, Trentin L. Obinutuzumab plus chlorambucil versus ibrutinib in previously untreated chronic lymphocytic leukemia patients without TP53 disruptions: A real-life CLL campus study. Front Oncol 2022; 12:1033413. [PMID: 36479077 PMCID: PMC9719965 DOI: 10.3389/fonc.2022.1033413] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 10/20/2022] [Indexed: 08/13/2023] Open
Abstract
One of the main issues in the treatment of patients with chronic lymphocytic leukemia (CLL) deals with the choice between continuous or fixed-duration therapy. Continuous ibrutinib (IB), the first-in-class BTK inhibitor, and obinutuzumab-chlorambucil (G-CHL) are commonly used therapies for elderly and/or comorbid patients. No head-to-head comparison has been carried out. Within the Italian campus CLL network, we performed a retrospective study on CLL patients without TP53 disruption treated with IB or G-CHL as first-line therapy. Patients in the G-CHL arm had a higher CIRS score and the worst renal function. The overall response rates between the G-CHL and IB arms were similar, but more complete remissions (CRs) were achieved with G-CHL (p = 0.0029). After a median follow-up of 30 months, the progression-free survival (PFS, p = 0.0061) and time to next treatment (TTNT, p = 0.0043), but not overall survival (OS, p = 0.6642), were better with IB than with G-CHL. Similar results were found after propensity score matching and multivariate analysis. While PFS and TTNT were longer with IB than with G-CHL in IGHV unmutated patients (p = 0.0190 and 0.0137), they were superimposable for IGHV mutated patients (p = 0.1900 and 0.1380). In the G-CHL arm, the depth of response (79% vs. 68% vs. 38% for CR, PR and SD/PD; p < 0.0001) and measurable residual disease (MRD) influenced PFS (78% vs. 53% for undetectable MRD vs. detectable MRD, p = 0.0203). Hematological toxicities were common in the G-CHL arm, while IB was associated with higher costs. Although continuous IB provides better disease control in CLL, IGHV mutated patients and those achieving an undetectable MRD show a marked clinical and economic benefit from a fixed-duration obinutuzumab-based treatment.
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Affiliation(s)
- Andrea Visentin
- Hematology and Clinical Immunology Unit, Department of Medicine, University of Padua, Padova, Italy
- Veneto Institute of Molecular Medicine, Padua, Italy
| | - Francesca Romana Mauro
- Hematology, Department of Translational and Precision Medicine, “Sapienza” University, Rome, Italy
| | - Gioachino Catania
- Division of Hematology, Hospital Saints (A. O. SS) Antonio e Biagio and Cesare Arrigo, Alessandria, Italy
| | - Alberto Fresa
- Hematology Institute, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, Rome, Italy
| | - Candida Vitale
- Department of Molecular Biotechnology and health Sciences, University of Torino and Division of Hematology, University Hospital (A.O.U.) Città della Salute e della Scienza di Torino, Torino, Italy
| | | | - Veronica Mattiello
- Hematology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore, University of Milan, Milan, Italy
| | | | - Paolo Sportoletti
- Hematology and Clinical Immunology Unit, University of Perugia, Perugia, Italy
| | | | - Gian Matteo Rigolin
- Hematology Section, Department of Medical Sciences, Azienda Ospedaliera-Universitaria, Arcispedale S. Anna, University of Ferrara, Ferrara, Italy
| | - Francesca Maria Quaglia
- Department of Medicine, Section of Hematology, University of Verona and Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Roberta Murru
- Hematology and Stem Cell Transplantation Unit, Ospedale A. Businco ARNAS “G. Brotzu”, Cagliari, Italy
| | | | - Stefano Molica
- Department Hematology-Oncology, Azienda Ospedaliera Pugliese-Ciaccio, Catanzaro, Italy
| | - Monia Marchetti
- Division of Hematology, Hospital Saints (A. O. SS) Antonio e Biagio and Cesare Arrigo, Alessandria, Italy
| | - Stefano Pravato
- Hematology and Clinical Immunology Unit, Department of Medicine, University of Padua, Padova, Italy
| | - Francesco Angotzi
- Hematology and Clinical Immunology Unit, Department of Medicine, University of Padua, Padova, Italy
| | - Alessandro Cellini
- Hematology and Clinical Immunology Unit, Department of Medicine, University of Padua, Padova, Italy
| | - Lydia Scarfò
- Strategic Program on CLL, University Health and Science “San Raffaele”, Milan, Italy
| | - Gianluigi Reda
- Hematology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore, University of Milan, Milan, Italy
| | - Marta Coscia
- Department of Molecular Biotechnology and health Sciences, University of Torino and Division of Hematology, University Hospital (A.O.U.) Città della Salute e della Scienza di Torino, Torino, Italy
| | - Luca Laurenti
- Hematology Institute, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, Rome, Italy
| | - Paolo Ghia
- Strategic Program on CLL, University Health and Science “San Raffaele”, Milan, Italy
| | - Robin Foà
- Hematology, Department of Translational and Precision Medicine, “Sapienza” University, Rome, Italy
| | - Antonio Cuneo
- Hematology Section, Department of Medical Sciences, Azienda Ospedaliera-Universitaria, Arcispedale S. Anna, University of Ferrara, Ferrara, Italy
| | - Livio Trentin
- Hematology and Clinical Immunology Unit, Department of Medicine, University of Padua, Padova, Italy
- Veneto Institute of Molecular Medicine, Padua, Italy
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Moreno C, Greil R, Demirkan F, Tedeschi A, Anz B, Larratt L, Simkovic M, Novak J, Strugov V, Gill D, Gribben JG, Kwei K, Dai S, Hsu E, Dean JP, Flinn IW. First-line treatment of chronic lymphocytic leukemia with ibrutinib plus obinutuzumab versus chlorambucil plus obinutuzumab: final analysis of the randomized, phase III iLLUMINATE trial. Haematologica 2022; 107:2108-2120. [PMID: 35021599 PMCID: PMC9425310 DOI: 10.3324/haematol.2021.279012] [Citation(s) in RCA: 59] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 11/04/2021] [Indexed: 11/29/2022] Open
Abstract
iLLUMINATE is a randomized, open-label phase III study of ibrutinib plus obinutuzumab (n=113) versus chlorambucil plus obinutuzumab (n=116) as first-line therapy for patients with chronic lymphocytic leukemia or small lymphocytic lymphoma. Eligible patients were aged ≥65 years, or <65 years with coexisting conditions. Patients received oral ibrutinib 420 mg once daily until disease progression or unacceptable toxicity or six cycles of oral chlorambucil, each in combination with six cycles of intravenous obinutuzumab. After a median follow-up of 45 months (range, 0.2-52), median progression-free survival continued to be significantly longer in the ibrutinib plus obinutuzumab arm than in the chlorambucil plus obinutuzumab arm (median not reached versus 22 months; hazard ratio=0.25; 95% confidence interval: 0.16-0.39; P<0.0001). The best overall rate of undetectable minimal residual disease (<0.01% by flow cytometry) remained higher with ibrutinib plus obinutuzumab (38%) than with chlorambucil plus obinutuzumab (25%). With a median treatment duration of 42 months, 13 months longer than the primary analysis, no new safety signals were identified for ibrutinib. As is typical for ibrutinib-based regimens, common grade ≥3 adverse events were most prevalent in the first 6 months of ibrutinib plus obinutuzumab treatment and generally decreased over time, except for hypertension. In this final analysis with up to 52 months of follow-up (median 45 months), ibrutinib plus obinutuzumab showed sustained clinical benefit, in terms of progression- free survival, in first-line treatment of chronic lymphocytic leukemia, including in patients with high-risk features. ClinicalTrials.gov identifier: NCT02264574.
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Affiliation(s)
- Carol Moreno
- Hospital de la Santa Creu i Sant Pau, Autonomous University of Barcelona, Barcelona, Spain.
| | - Richard Greil
- 3rd Medical Department, Paracelsus Medical University, Salzburg Cancer Research Institute-CCCIT, Salzburg, Austria
| | - Fatih Demirkan
- Dokuz Eylul University, Division of Hematology, Izmir, Turkey
| | | | | | - Loree Larratt
- University of Alberta Hospital, Edmonton, Alberta, Canada
| | - Martin Simkovic
- Department of Internal Medicine, Haematology, University Hospital and Medical School Hradec, Králové, Czech Republic
| | - Jan Novak
- University Hospital Kralovske Vinohrady and Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Vladimir Strugov
- Almazov National Medical Research Centre, St. Petersburg, Russia
| | - Devinder Gill
- Princess Alexandra Hospital, Brisbane, Queensland, Australia
| | | | - Kevin Kwei
- Pharmacyclics LLC, an AbbVie Company, Sunnyvale, CA, USA
| | - Sandra Dai
- Pharmacyclics LLC, an AbbVie Company, Sunnyvale, CA, USA
| | - Emily Hsu
- Pharmacyclics LLC, an AbbVie Company, Sunnyvale, CA, USA
| | - James P Dean
- Pharmacyclics LLC, an AbbVie Company, Sunnyvale, CA, USA
| | - Ian W Flinn
- Sarah Cannon Research Institute, Nashville, TN, USA
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Pretreatment with ibrutinib reduces cytokine secretion and limits the risk of obinutuzumab-induced infusion-related reactions in patients with CLL: analysis from the iLLUMINATE study. Ann Hematol 2021; 100:1733-1742. [PMID: 34018029 PMCID: PMC8195966 DOI: 10.1007/s00277-021-04536-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 04/16/2021] [Indexed: 10/27/2022]
Abstract
Anti-CD20 antibody treatments, such as obinutuzumab, have been associated with infusion-related reactions (IRRs). In the phase 3 iLLUMINATE study of ibrutinib-obinutuzumab versus chlorambucil-obinutuzumab in first-line chronic lymphocytic leukemia/small lymphocytic lymphoma, IRRs were substantially reduced with ibrutinib-obinutuzumab versus chlorambucil-obinutuzumab. We prospectively analyzed inflammatory cytokines to evaluate the impact of ibrutinib on circulating cytokine levels following obinutuzumab infusion. In iLLUMINATE, ibrutinib or chlorambucil was given approximately 30-120 min before the first obinutuzumab infusion. Cytokines evaluated were IFNγ, IL-6, IL-8, IL-10, IL-18, MCP-1, MIP-1α, MIP-1β, and TNFα. Changes in peak cytokine levels from baseline (immediately before obinutuzumab) to post-obinutuzumab infusion were compared between arms and between patients with versus without IRRs using Wilcoxon rank sum test. Of 228 treated patients, 95 on ibrutinib-obinutuzumab (15 with IRRs, 80 without) and 88 on chlorambucil-obinutuzumab (45 with IRRs, 43 without) with cytokine data were included. Irrespective of IRR occurrence, median increase in cytokines was lower with ibrutinib-obinutuzumab versus chlorambucil-obinutuzumab for all cytokines (P < 0.01) except MIP-1β. Across treatment arms, post-obinutuzumab median increase in all cytokines except MIP-1β was greater in patients with versus without IRRs (P < 0.001). IL-6 and IL-8 elevations were associated with IRRs in both treatment arms. Among patients with IRRs, those receiving ibrutinib-obinutuzumab had lower post-obinutuzumab increases in IL-6, IL-8, IL-10, and MCP-1 (P < 0.04) than patients receiving chlorambucil-obinutuzumab. For patients in the ibrutinib-treatment arm, we observed a reduction in both the rate of clinically apparent IRRs and the levels of IRR-related cytokines and chemokines. This observation supports an immunomodulatory mechanism of action for ibrutinib. Clinical Trial Registration: NCT02264574.
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