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Schlegel LS, Werbrouck C, Boettcher M, Schlegel P. Universal CAR 2.0 to overcome current limitations in CAR therapy. Front Immunol 2024; 15:1383894. [PMID: 38962014 PMCID: PMC11219820 DOI: 10.3389/fimmu.2024.1383894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 06/03/2024] [Indexed: 07/05/2024] Open
Abstract
Chimeric antigen receptor (CAR) T cell therapy has effectively complemented the treatment of advanced relapsed and refractory hematological cancers. The remarkable achievements of CD19- and BCMA-CAR T therapies have raised high expectations within the fields of hematology and oncology. These groundbreaking successes are propelling a collective aspiration to extend the reach of CAR therapies beyond B-lineage malignancies. Advanced CAR technologies have created a momentum to surmount the limitations of conventional CAR concepts. Most importantly, innovations that enable combinatorial targeting to address target antigen heterogeneity, using versatile adapter CAR concepts in conjunction with recent transformative next-generation CAR design, offer the promise to overcome both the bottleneck associated with CAR manufacturing and patient-individualized treatment regimens. In this comprehensive review, we delineate the fundamental prerequisites, navigate through pivotal challenges, and elucidate strategic approaches, all aimed at paving the way for the future establishment of multitargeted immunotherapies using universal CAR technologies.
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Affiliation(s)
- Lara Sophie Schlegel
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Coralie Werbrouck
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Michael Boettcher
- Department of Pediatric Surgery, University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Patrick Schlegel
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Department of Pediatric Hematology and Oncology, Westmead Children’s Hospital, Sydney, NSW, Australia
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2
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Wei J, Chaney K, Shim WJ, Chen H, Leonard G, O'Brien S, Liu Z, Jiang J, Ulrey R. Cryopreserved leukapheresis material can be transferred from controlled rate freezers to ultracold storage at warmer temperatures without affecting downstream CAR-T cell culture performance and in-vitro functionality. Cryobiology 2024; 115:104889. [PMID: 38513998 DOI: 10.1016/j.cryobiol.2024.104889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 02/02/2024] [Accepted: 03/18/2024] [Indexed: 03/23/2024]
Abstract
Chimeric antigen receptor (CAR) T-cell therapies are increasingly adopted as a commercially available treatment for hematologic and solid tumor cancers. As CAR-T therapies reach more patients globally, the cryopreservation and banking of patients' leukapheresis materials is becoming imperative to accommodate intra/inter-national shipping logistical delays and provide greater manufacturing flexibility. This study aims to determine the optimal temperature range for transferring cryopreserved leukapheresis materials from two distinct types of controlled rate freezing systems, Liquid Nitrogen (LN2)-based and LN2-free Conduction Cooling-based, to the ultracold LN2 storage freezer (≤-135 °C), and its impact on CAR T-cell production and functionality. Presented findings demonstrate that there is no significant influence on CAR T-cell expansion, differentiation, or downstream in-vitro function when employing a transfer temperature range spanning from -30 °C to -80 °C for the LN2-based controlled rate freezers as well as for conduction cooling controlled rate freezers. Notably, CAR T-cells generated from cryopreserved leukapheresis materials using the conduction cooling controlled rate freezer exhibited suboptimal performance in certain donors at transfer temperatures lower than -60 °C, possibly due to the reduced cooling rate of lower than 1 °C/min and extended dwelling time needed to reach the final temperatures within these systems. This cohort of data suggests that there is a low risk to transfer cryopreserved leukapheresis materials at higher temperatures (between -30 °C and -60 °C) with good functional recovery using either controlled cooling system, and the cryopreserved materials are suitable to use as the starting material for autologous CAR T-cell therapies.
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Affiliation(s)
- Jiaming Wei
- Cell Therapy Technical Operations, R&D Oncology, AstraZeneca, One MedImmune Way, Gaithersburg, MD, USA
| | - Katherine Chaney
- Cell Therapy Technical Operations, R&D Oncology, AstraZeneca, One MedImmune Way, Gaithersburg, MD, USA
| | - Woo Jin Shim
- Cell Therapy Technical Operations, R&D Oncology, AstraZeneca, One MedImmune Way, Gaithersburg, MD, USA
| | - Heyu Chen
- Cell Therapy Technical Operations, R&D Oncology, AstraZeneca, One MedImmune Way, Gaithersburg, MD, USA
| | - Grace Leonard
- Cell Therapy Technical Operations, R&D Oncology, AstraZeneca, One MedImmune Way, Gaithersburg, MD, USA
| | - Sean O'Brien
- Cell Therapy Technical Operations, R&D Oncology, AstraZeneca, One MedImmune Way, Gaithersburg, MD, USA
| | - Ziyan Liu
- Cell Therapy Technical Operations, R&D Oncology, AstraZeneca, One MedImmune Way, Gaithersburg, MD, USA
| | - Jinlin Jiang
- Cell Therapy Technical Operations, R&D Oncology, AstraZeneca, One MedImmune Way, Gaithersburg, MD, USA
| | - Robert Ulrey
- Cell Therapy Technical Operations, R&D Oncology, AstraZeneca, One MedImmune Way, Gaithersburg, MD, USA.
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Leroy M, Deramoudt L, Pinturaud M, Demaret J, Alidjinou EK, Nudel M, Cavalieri D, Chahla WA, Odou P, Morschhauser F, Yakoub-Agha I, Simon N, Beauvais D. A second round of anti-CD19 CAR T-cell therapy in diffuse large B-cell lymphoma: when persistence pays off. Leuk Lymphoma 2024; 65:868-871. [PMID: 38440954 DOI: 10.1080/10428194.2024.2325188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 02/24/2024] [Indexed: 03/06/2024]
Affiliation(s)
- Marie Leroy
- CHU Lille, Institut de Pharmacie, Lille, France
| | - Laure Deramoudt
- CHU Lille, Institut de Pharmacie, Lille, France
- Univ Lille, ULR 7365-GRITA-Groupe de Recherche sur les Formes Injectables et les Technologies Associées, Lille, France
| | - Marine Pinturaud
- CHU Lille, Institut de Pharmacie, Lille, France
- Univ Lille, ULR 7365-GRITA-Groupe de Recherche sur les Formes Injectables et les Technologies Associées, Lille, France
| | - Julie Demaret
- CHU Lille, Institut d'Immunologie, Lille, France
- CHU de Lille, Université de Lille, INSERM Infinite U1285, Lille, France
| | | | | | | | - Wadih Abou Chahla
- Department of Pediatric Hematology, Jeanne de Flandre Hospital, Lille University Hospital, Lille, France
| | - Pascal Odou
- CHU Lille, Institut de Pharmacie, Lille, France
- Univ Lille, ULR 7365-GRITA-Groupe de Recherche sur les Formes Injectables et les Technologies Associées, Lille, France
| | - Franck Morschhauser
- Univ Lille, ULR 7365-GRITA-Groupe de Recherche sur les Formes Injectables et les Technologies Associées, Lille, France
- Hematology Department, CHU Lille, Lille, France
| | - Ibrahim Yakoub-Agha
- CHU de Lille, Université de Lille, INSERM Infinite U1285, Lille, France
- Hematology Department, CHU Lille, Lille, France
| | - Nicolas Simon
- CHU Lille, Institut de Pharmacie, Lille, France
- Univ Lille, ULR 7365-GRITA-Groupe de Recherche sur les Formes Injectables et les Technologies Associées, Lille, France
| | - David Beauvais
- Hematology Department, CHU Lille, Lille, France
- Univ Lille, Inserm U1192 - PRISM, Lille, France
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4
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Carbonell D, Monsalvo S, Catalá E, Pérez-Corral A, Villegas C, Falero C, Ruano G, Martinez M, Kwon M, Muñoz-Martínez C, Díez-Martín JL, Gayoso J, Anguita J. Advantages of high cell concentration prior to cryopreservation of initial leukapheresis in CAR-T cell therapy. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2024; 22:239-245. [PMID: 38063787 PMCID: PMC11073629 DOI: 10.2450/bloodtransfus.542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 09/08/2023] [Indexed: 05/07/2024]
Abstract
BACKGROUND Chimeric antigen receptor (CAR) T-cell therapy is increasingly used in patients affected by B-cell lymphoma and acute lymphoblastic leukemia. For logistical reasons, initial apheresis products may be cryopreserved for shipment to manufacturing centers. Due to the characteristics of these patients, cells are often collected in large volumes, meaning more bags must be cryopreserved. This requires increased storage, time and monetary costs. In this context, we aimed to evaluate a high cell concentration cryopreservation protocol by centrifugation to standardize the initial CAR-T manufacturing procedure. MATERIALS AND METHODS Sixty-eight processes of leukapheresis of 57 patients affected by refractory/relapsed B cell lymphoma and 9 patients affected by acute lymphoblastic leukemia who were eligible for anti-CD19 CAR-T cell treatment performed between June 2019 and October 2022 were analyzed. Whole blood count, percentage and number of T cells were assessed on the apheresis final product. The apheresis product, which was alternatively stored overnight at 4°C, was centrifuged, adjusting the volume to approximately 40 mL. The product was immediately cryopreserved to achieve a final cell concentration of 50-200×106 cells/ml for cryopreservation. RESULTS Leukapheresis volume was reduced by almost fivefold (median: 185 to 40 mL), resulting in a higher product concentration in one bag. In addition, the number of non-target cells (monocytes, platelets and erythrocytes) was also reduced during the development of CAR-T cell therapy, thereby maintaining T lymphocyte levels and providing a purer starting material. DISCUSSION The advantages of the protocol include reducing economic costs, saving storage space, simplifying the manufacturing process, and facilitating shipping logistics. In conclusion, we present a validated, simple, and cost-effective cell enrichment processing protocol that provides high-quality cryopreserved products as starting material for the CAR-T cell manufacturing process.
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Affiliation(s)
- Diego Carbonell
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain
- Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - Silvia Monsalvo
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain
| | - Eva Catalá
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain
- Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - Ana Pérez-Corral
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain
- Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - Carolina Villegas
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain
| | - Carmen Falero
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain
| | - Gloria Ruano
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain
| | - Monica Martinez
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain
| | - Mi Kwon
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain
- Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - Cristina Muñoz-Martínez
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain
- Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - José Luis Díez-Martín
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain
- Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
- Department of Medicine, School of Medicine, Complutense University of Madrid, Madrid, Spain
| | - Jorge Gayoso
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain
- Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - Javier Anguita
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain
- Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
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5
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Fiuza-Luces C, Valenzuela PL, Gálvez BG, Ramírez M, López-Soto A, Simpson RJ, Lucia A. The effect of physical exercise on anticancer immunity. Nat Rev Immunol 2024; 24:282-293. [PMID: 37794239 DOI: 10.1038/s41577-023-00943-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2023] [Indexed: 10/06/2023]
Abstract
Regular physical activity is associated with lower cancer incidence and mortality, as well as with a lower rate of tumour recurrence. The epidemiological evidence is supported by preclinical studies in animal models showing that regular exercise delays the progression of cancer, including highly aggressive malignancies. Although the mechanisms underlying the antitumorigenic effects of exercise remain to be defined, an improvement in cancer immunosurveillance is likely important, with different immune cell subtypes stimulated by exercise to infiltrate tumours. There is also evidence that immune cells from blood collected after an exercise bout could be used as adoptive cell therapy for cancer. In this Perspective, we address the importance of muscular activity for maintaining a healthy immune system and discuss the effects of a single bout of exercise (that is, 'acute' exercise) and those of 'regular' exercise (that is, repeated bouts) on anticancer immunity, including tumour infiltrates. We also address the postulated mechanisms and the clinical implications of this emerging area of research.
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Affiliation(s)
- Carmen Fiuza-Luces
- Physical Activity and Health Research Group ('PaHerg'), Research Institute of the Hospital 12 de Octubre ('imas12'), Madrid, Spain.
| | - Pedro L Valenzuela
- Physical Activity and Health Research Group ('PaHerg'), Research Institute of the Hospital 12 de Octubre ('imas12'), Madrid, Spain
- Systems Biology Department, Universidad de Alcalá, Alcalá de Henares, Spain
| | - Beatriz G Gálvez
- Physical Activity and Health Research Group ('PaHerg'), Research Institute of the Hospital 12 de Octubre ('imas12'), Madrid, Spain
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Universidad Complutense de Madrid, Madrid, Spain
| | - Manuel Ramírez
- Oncohematology Unit, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
- Biomedical Research Foundation, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
- La Princesa Institute of Heah, Madrid, Spain
| | - Alejandro López-Soto
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain.
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Asturias, Spain.
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Asturias, Spain.
| | - Richard J Simpson
- School of Nutritional Sciences and Wellness, The University of Arizona, Tucson, AZ, USA
- Department of Paediatrics, The University of Arizona, Tucson, AZ, USA
- Department of Immunobiology, The University of Arizona, Tucson, AZ, USA
| | - Alejandro Lucia
- CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain.
- Faculty of Sport Sciences, Universidad Europea, Madrid, Spain.
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6
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Angelos MG, Patel RP, Ruella M, Barta SK. Progress and Pitfalls of Chimeric Antigen Receptor T Cell Immunotherapy against T Cell Malignancies. Transplant Cell Ther 2024; 30:171-186. [PMID: 37866783 PMCID: PMC10873040 DOI: 10.1016/j.jtct.2023.10.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/05/2023] [Accepted: 10/16/2023] [Indexed: 10/24/2023]
Abstract
Chimeric antigen receptor T cell (CAR-T) immunotherapy has revolutionized the treatment of relapsed and refractory B cell-derived hematologic malignancies. Currently, there are 6 Food and Drug Administration-approved commercial CAR-T products that target antigens exclusively expressed on malignant B cells or plasma cells. However, concurrent advancement for patients with rarer and more aggressive T cell-derived hematologic malignancies have not yet been achieved. CAR-T immunotherapies are uniquely limited by challenges related to CAR-T product manufacturing and intrinsic tumor biology. In this review tailored for practicing clinician-scientists, we discuss the major barriers of CAR-T implementation against T cell-derived neoplasms and highlight specific scientific advancements poised to circumvent these obstacles. We summarize salient early-stage clinical trials implementing novel CAR-T immunotherapies specifically for patients with relapsed and/or refractory T cell neoplasms. Finally, we highlight novel manufacturing and treatment strategies that are poised to have a meaningful future clinical impact.
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Affiliation(s)
- Mathew G Angelos
- Division of Hematology and Oncology, Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Ruchi P Patel
- Division of Hematology and Oncology, Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Marco Ruella
- Division of Hematology and Oncology, Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Stefan K Barta
- Division of Hematology and Oncology, Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
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Kawai A, Ishihara M, Nakamura T, Kitano S, Iwata S, Takada K, Emori M, Kato K, Endo M, Matsumoto Y, Kakunaga S, Sato E, Miyahara Y, Morino K, Tanaka S, Takahashi S, Matsuo F, Matsumine A, Kageyama S, Ueda T. Safety and Efficacy of NY-ESO-1 Antigen-Specific T-Cell Receptor Gene-Transduced T Lymphocytes in Patients with Synovial Sarcoma: A Phase I/II Clinical Trial. Clin Cancer Res 2023; 29:5069-5078. [PMID: 37792433 PMCID: PMC10722137 DOI: 10.1158/1078-0432.ccr-23-1456] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 09/20/2023] [Accepted: 10/02/2023] [Indexed: 10/05/2023]
Abstract
PURPOSE To determine, for patients with advanced or recurrent synovial sarcoma (SS) not suitable for surgical resection and resistant to anthracycline, the safety and efficacy of the infusion of autologous T lymphocytes expressing NY-ESO-1 antigen-specific T-cell receptor (TCR) gene and siRNA to inhibit the expression of endogenous TCR (product code: TBI-1301). PATIENTS AND METHODS Eligible Japanese patients (HLA-A*02:01 or *02:06, NY-ESO-1-positive tumor expression) received cyclophosphamide 750 mg/m2 on days -3 and -2 (induction period) followed by a single dose of 5×109 (±30%) TBI-1301 cells as a divided infusion on days 0 and 1 (treatment period). Primary endpoints were safety-related (phase I) and efficacy-related [objective response rate (ORR) by RECIST v1.1/immune-related RECIST (irRECIST); phase II]. Safety- and efficacy-related secondary endpoints were considered in both phase I/II parts. RESULTS For the full analysis set (N = 8; phase I, n = 3; phase II, n = 5), the ORR was 50.0% (95% confidence interval, 15.7-84.3) with best overall partial response in four of eight patients according to RECIST v1.1/irRECIST. All patients experienced adverse events and seven of eight patients (87.5%) had adverse drug reactions, but no deaths were attributed to adverse events. Cytokine release syndrome occurred in four of eight patients (50.0%), but all cases recovered with prespecified treatment. Immune effector cell-associated neurotoxicity syndrome, replication-competent retrovirus, and lymphocyte clonality were absent. CONCLUSIONS Adoptive immunotherapy with TBI-1301 to selectively target NY-ESO-1-positive tumor cells appears to be a promising strategy for the treatment of advanced or recurrent SS with acceptable toxicity.
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Affiliation(s)
- Akira Kawai
- Department of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
| | | | - Tomoki Nakamura
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Shigehisa Kitano
- Department of Advanced Medical Development, The Cancer Institute Hospital of JFCR, Tokyo, Japan
| | - Shintaro Iwata
- Department of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Kohichi Takada
- Department of Medical Oncology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Makoto Emori
- Department of Orthopedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Koji Kato
- Department of Hematology, Oncology and Cardiovascular Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Makoto Endo
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshihiro Matsumoto
- Department of Orthopedic Surgery, Fukushima Medical University, Fukushima, Japan
| | - Shigeki Kakunaga
- Department of Orthopaedic Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Eiichi Sato
- Department of Pathology, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Yoshihiro Miyahara
- Department of Personalized Cancer Immunotherapy, Mie University Graduate School of Medicine, Mie, Japan
| | | | | | | | | | - Akihiko Matsumine
- Department of Orthopaedics and Rehabilitation Medicine, University of Fukui, Fukui, Japan
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Pessach I, Nagler A. Leukapheresis for CAR-T cell production and therapy. Transfus Apher Sci 2023; 62:103828. [PMID: 37838564 DOI: 10.1016/j.transci.2023.103828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2023]
Abstract
Chimeric antigen receptor (CAR) T-cell therapy is an effective, individualized immunotherapy, and novel treatment for hematologic malignancies. Six commercial CAR-T cell products are currently approved for lymphatic malignancies and multiple myeloma. In addition, an increasing number of clinical centres produce CAR-T cells on-site, which enable the administration of CAR-T cells on site. The CAR-T cell products are either fresh or cryopreserved. Manufacturing CAR-T cells is a complicated process that begins with leukapheresis to obtain T cells from the patient's peripheral blood. An optimal leukapheresis product is crucial step for a successful CAR-T cell therapy; therefore, it is imperative to understand the factors that may affect the quality or T cells. The leukapheresis for CAR-T cell production is well tolerated and safe for both paediatric and adult patients and CAR-Τ cell therapy presents high clinical response rate in many studies. CAR-T cell therapy is under continuous improvement, and it has transformed into an almost standard procedure in clinical haematology and stem cell transplantation facilities that provide both autologous and allogeneic stem cell transplantations. In patients suffering from advanced haematological malignancies, CAR-T cell therapy shows incredible antitumor efficacy. Even after a single infusion of autologous CD19-targeting CAR-T cells in patients with relapsed or refractory diffuse large B cell lymphoma (DLBCL) and acute lymphoblastic leukaemia (ALL), long lasting remission is observed, and a fraction of the patients are being cured. Future novel constructs are being developed with better T cell persistence and better expansion. New next-generation CAR-T cells are currently designed to avoid toxicities such as cytokine release syndrome and neurotoxicity.
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Affiliation(s)
- Ilias Pessach
- Hematology Department, Athens Medical Center, Athens, Greece
| | - Arnon Nagler
- Hematology Division, Chaim Sheba Medical Center, Israel.
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9
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Leone G, Baldini V, Bramanti S, Crocchiolo R, Gattillo S, Ermini S, Giudice V, Ferrero I, Moscato T, Milani R, Gozzer M, Piccirillo N, Tassi C, Tassi V, Coluccia P. Managing leukapheresis in adult and pediatric patients eligible for chimeric antigen receptor T-cell therapy: suggestions from an Italian Expert Panel. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2023; 21:514-525. [PMID: 37146295 PMCID: PMC10645345 DOI: 10.2450/bloodtransfus.471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 01/18/2023] [Indexed: 05/07/2023]
Abstract
Chimeric antigen receptor (CAR) T-cell therapy relies on T cells engineered to target specific tumor antigens such as CD-19 in B-cell malignancies. In this setting, the commercially available products have offered a potential long-term cure for both pediatric and adult patients. Yet manufacturing CAR T cells is a cumbersome, multistep process, the success of which strictly depends on the characteristics of the starting material, i.e., lymphocyte collection yield and composition. These, in turn, might be affected by patient factors such as age, performance status, comorbidities, and previous therapies. Ideally, CAR T-cell therapies are a one-off treatment; therefore, optimization and the possible standardization of the leukapheresis procedure is critical, also in view of the novel CAR T cells currently under investigation for hematological malignancies and solid tumors. The most recent Best Practice recommendations for the management of children and adults undergoing CAR T-cell therapy provide a comprehensive guide to their use. However, their application in local practice is not straightforward and some grey areas remain. An Italian Expert Panel of apheresis specialists and hematologists from the centers authorized to administer CAR T-cell therapy took part in a detailed discussion on the following: 1) pre-apheresis patient evaluation; 2) management of the leukapheresis procedure, also in special situations represented by low lymphocyte count, peripheral blastosis, pediatric population <25 kg, and the COVID-19 outbreak; and 3) release and cryopreservation of the apheresis unit. This article presents some of the important challenges that must be faced to optimize the leukapheresis procedure and offers suggestions as to how to improve it, some of which are specific to the Italian setting.
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Affiliation(s)
- Giovanna Leone
- Unit of Immuno-Hematology and Transfusion Medicine, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | | | - Stefania Bramanti
- Cancer Center, Humanitas Cancer Center, IRCCS, Rozzano, Milan, Italy
| | | | - Salvatore Gattillo
- Immuno-Hematology and Transfusion Medicine Unit, San Raffaele Hospital, Milan, Italy
| | - Stefano Ermini
- Transfusion Service, University Hospital Meyer, Children’s Hospital, Florence, Italy
| | - Valeria Giudice
- Immuno-Hematology and Transfusion Medicine Unit, University Hospital Sant’ Orsola-Malpighi, Bologna, Italy
| | - Ivana Ferrero
- Stem Cell Transplantation and Cellular Therapy Laboratory, Paediatric Onco-Hematology Division, Regina Margherita Children’s Hospital, City of Health and Science of Turin, Turin, Italy
| | - Tiziana Moscato
- Stem Cell Transplant and Cellular Therapies Unit, Hemato-Oncology and Radiotherapy Department, Bianchi-Melacrino-Morelli Hospital, Reggio Calabria, Italy
| | - Raffaella Milani
- Immunohematology and Transfusion Medicine Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Maria Gozzer
- Hematology, Department of Translational and Precision Medicine, Sapienza University Policlinico Umberto I, Rome, Italy
| | - Nicola Piccirillo
- Department of Diagnostic Imaging, Oncological Radiotherapy and Hematology, Complex Operational Unit of Blood Transfusion, Gemelli University Hospital IRCCS, Rome, Italy
| | - Cristina Tassi
- Stem Cell Transplantation and Cellular Therapy Laboratory, Paediatric Onco-Hematology Division, Regina Margherita Children’s Hospital, City of Health and Science of Turin, Turin, Italy
| | - Valter Tassi
- Blood Bank and Immunohematology, City of Health and Science of Turin, Turin, Italy
| | - Paola Coluccia
- Immunohematology and Transfusion Medicine Service, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
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10
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Huang X, Gan GPL, Chan EHL, Heng KK, Perumal S, Salleh R, Teo JML, Xie G, Lee JJ, Ho AYL, Hwang WYK, Linn YC, Chen Y, Quek JKS, Than H, Nagarajan C, Lim FLWI. A proposed predictive mathematical model for efficient T-cell collection by leukapheresis for manufacturing chimeric antigen receptor T cells. Haematologica 2023; 108:3131-3134. [PMID: 37165850 PMCID: PMC10620588 DOI: 10.3324/haematol.2022.282350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 05/03/2023] [Indexed: 05/12/2023] Open
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11
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O'Reilly MA, Malhi A, Cheok KPL, Ings S, Balsa C, Keane H, Jalowiec K, Neill L, Peggs KS, Roddie C. A novel predictive algorithm to personalize autologous T-cell harvest for chimeric antigen receptor T-cell manufacture. Cytotherapy 2023; 25:323-329. [PMID: 36513573 DOI: 10.1016/j.jcyt.2022.10.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 10/23/2022] [Accepted: 10/24/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND AIMS The most widely accepted starting materials for chimeric antigen receptor T-cell manufacture are autologous CD3+ T cells obtained via the process of leukapheresis, also known as T-cell harvest. As this treatment modality gains momentum and apheresis units struggle to meet demand for harvest slots, strategies to streamline this critical step are warranted. METHODS This retrospective review of 262 T-cell harvests, with a control cohort of healthy donors, analyzed the parameters impacting CD3+ T-cell yield in adults with B-cell malignancies. The overall aim was to design a novel predictive algorithm to guide the required processed blood volume (PBV) (L) on the apheresis machine to achieve a specific CD3+ target yield. RESULTS Factors associated with CD3+ T-cell yield on multivariate analysis included peripheral blood CD3+ count (natural log, ×109/L), hematocrit (HCT) and PBV with coefficients of 0.86 (95% confidence interval [CI], 0.80-0.92, P < 0.001), 1.30 (95% CI, 0.51-2.08, P = 0.001) and 0.09 (95% CI, 0.07-0.11, P < 0.001), respectively. The authors' model, incorporating CD3+ cell count, HCT and PBV (L), with an adjusted R2 of 0.87 and root-mean-square error of 0.26 in the training dataset, was highly predictive of CD3+ cell yield in the testing dataset. An online application to estimate PBV using this algorithm can be accessed at https://cd3yield.shinyapps.io/cd3yield/. CONCLUSIONS The authors propose a transferrable model that incorporates clinical and laboratory variables accessible pre-harvest for use across the field of T-cell therapy. Pending further validation, such a model may be used to generate an individual leukapheresis plan and streamline the process of cell harvest, a well-recognized bottleneck in the industry.
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Affiliation(s)
- Maeve A O'Reilly
- University College London Cancer Institute, London, UK; Department of Hematology, University College London Hospital, London, UK. maeve.o'
| | - Aman Malhi
- Cancer Research UK & University College London Cancer Trials Center, University College London, London, UK
| | - Kathleen P L Cheok
- Department of Hematology, University College London Hospital, London, UK
| | - Stuart Ings
- Department of Hematology, University College London Hospital, London, UK
| | - Carmen Balsa
- Department of Hematology, University College London Hospital, London, UK
| | - Helen Keane
- Department of Hematology, University College London Hospital, London, UK
| | - Katarzyna Jalowiec
- Department of Hematology, University College London Hospital, London, UK
| | - Lorna Neill
- Department of Hematology, University College London Hospital, London, UK
| | - Karl S Peggs
- University College London Cancer Institute, London, UK; Department of Hematology, University College London Hospital, London, UK
| | - Claire Roddie
- University College London Cancer Institute, London, UK; Department of Hematology, University College London Hospital, London, UK
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Forero-Forero JV, Lengerke-Diaz PA, Moreno-Cortes E, Melody M, Rahman ZA, Rosenthal AC, Kharfan-Dabaja MA, Castro JE. Predictors and Management of Relapse to Axicabtagene Ciloleucel in Patients with Aggressive B-cell Lymphoma. Hematol Oncol Stem Cell Ther 2023; 16:133-143. [PMID: 34562407 DOI: 10.1016/j.hemonc.2021.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/25/2021] [Accepted: 09/02/2021] [Indexed: 01/31/2023] Open
Abstract
OBJECTIVE/BACKGROUND Despite the success of chimeric antigen receptor (CAR) T-cell therapy in patients with aggressive non-Hodgkin lymphoma (aNHL), some patients still fail treatment, and their prognosis is dismal. METHODS We performed a retrospective study of aNHL patients treated with axicabtagene ciloleucel (axi-cel) at two Mayo Clinic centers between 2018 and 2020. We evaluated predictive factors, toxicities, and responses to salvage regimens after CAR T-cell therapy. RESULTS Thirty-four patients received axi-cel with a median length of hospitalization of 14 days. Cytokine release syndrome (CRS) and immune effector cell-associated neurotoxicity syndrome of any grade occurred in 91% and 41% of patients, respectively. Furthermore, 71% of patients responded to therapy, with 53% achieving a complete response (CR). The CRS grade and absolute lymphocyte count at leukapheresis (ALCLeuk) correlated with CR and overall survival (OS), respectively. After a median follow-up of 6.8 months (interquartile range [IQR] 4.6-14.9), 15 patients (44%) showed progressive disease (PD). Most patients (60%) progressed during the first 3 months and had persistent CD19 tumor expression. Elevated C-reactive protein at baseline increased the risk of PD, whereas elevated ferritin increased PD and mortality risk. Twelve patients received salvage therapy, but only three responded. Median OS of relapsed/refractory patients to axi-cel was 3 months (IQR 1.3-5.1). CONCLUSION The grade of CRS and ALCLeuk correlated with better outcomes to axi-cel therapy. In addition, elevated inflammatory markers at baseline were associated with PD and shorter survival. Relapses after treatment frequently occur within months after axi-cel infusion; they confer a poor prognosis and create an urgent need for novel and effective treatment options in this patient population.
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Affiliation(s)
| | - Paula A Lengerke-Diaz
- Department of Internal Medicine, Division Hematology-Oncology, Mayo Clinic, Phoenix, AZ, USA
| | - Eider Moreno-Cortes
- Department of Internal Medicine, Division Hematology-Oncology, Mayo Clinic, Phoenix, AZ, USA
| | - Megan Melody
- Department of Internal Medicine, Mayo Clinic, Jacksonville, FL, USA
| | - Zaid Abdel Rahman
- Division of Hematology-Oncology and Blood and Marrow Transplantation and Cellular Therapy Program, Mayo Clinic, Jacksonville, FL, USA
| | - Allison C Rosenthal
- Department of Internal Medicine, Division Hematology-Oncology, Mayo Clinic, Phoenix, AZ, USA
| | - Mohamed A Kharfan-Dabaja
- Division of Hematology-Oncology and Blood and Marrow Transplantation and Cellular Therapy Program, Mayo Clinic, Jacksonville, FL, USA
| | - Januario E Castro
- Department of Internal Medicine, Division Hematology-Oncology, Mayo Clinic, Phoenix, AZ, USA
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13
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Molina JC, Li Y, Otto WR, Miller TP, Getz KD, Mccoubrey C, Ramos M, Krause E, Cao L, Gramatges MM, Rabin K, Scheurer M, Elgarten CW, Myers RM, Seif AE, Fisher BT, Shah NN, Aplenc R. Absolute lymphocyte count recovery following initial acute myelogenous leukemia therapy: Implications for adoptive cell therapy. Pediatr Blood Cancer 2023; 70:e30062. [PMID: 36370087 PMCID: PMC10823592 DOI: 10.1002/pbc.30062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 09/03/2022] [Accepted: 09/15/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND An adequate absolute lymphocyte count (ALC) is an essential first step in autologous chimeric antigen receptor (CAR) T-cell manufacturing. For patients with acute myelogenous leukemia (AML), the intensity of chemotherapy received may affect adequate ALC recovery required for CAR T-cell production. We sought to analyze ALC following each course of upfront therapy as one metric for CAR T-cell manufacturing feasibility in children and young adults with AML. PROCEDURE ALC data were collected from an observational study of patients with newly diagnosed AML between the ages of 1 month and 21 years who received treatment between the years of 2006 and 2018 at one of three hospitals in the Leukemia Electronic Abstraction of Records Network (LEARN) consortium. RESULTS Among 193 patients with sufficient ALC data for analysis, the median ALC following induction 1 was 1715 cells/μl (interquartile range: 1166-2388), with successive decreases in ALC with each subsequent course. Similarly, the proportion of patients achieving an ALC >400 cells/μl decreased following each course, ranging from 98.4% (190/193) after course 1 to 66.7% (22/33) for patients who received a fifth course of therapy. CONCLUSIONS There is a successive decline of ALC recovery with subsequent courses of chemotherapy. Despite this decline, ALC values are likely sufficient to consider apheresis prior to the initiation of each course of upfront therapy for the majority of newly diagnosed pediatric AML patients, thereby providing a window of opportunity for T-cell collection for those patients identified at high risk of relapse or with refractory disease.
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Affiliation(s)
- John C. Molina
- Pediatric Oncology Branch, Center for Cancer Research (CCR), National Cancer Institute (NCI), NIH, Bethesda, Maryland, USA
- Department of Hematology and Medical Oncology, Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio, USA
| | - Yimei Li
- Division of Oncology, Department of Pediatrics, Center for Childhood Cancer Research, Children’s Hospital of Philadelphia and Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - William R. Otto
- Department of Pediatrics, Division of Infectious Diseases, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Tamara P. Miller
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, Georgia, USA
- Department of Pediatrics, Emory University, Atlanta, Georgia, USA
| | - Kelly D. Getz
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Center for Pediatric Clinical Effectiveness, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Carly Mccoubrey
- Division of Oncology, Department of Pediatrics, Center for Childhood Cancer Research, Children’s Hospital of Philadelphia and Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Mark Ramos
- Department of Biomedical and Health Informatics, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Edward Krause
- Department of Biomedical and Health Informatics, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Lusha Cao
- Department of Biomedical and Health Informatics, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - M. Monica Gramatges
- Pediatric Hematology/Oncology, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas, USA
- Pediatric Cardio-Oncology Program, Baylor College of Medicine/Texas Children’s Hospital, Houston,Texas, USA
| | - Karen Rabin
- Pediatric Hematology/Oncology, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas, USA
| | - Michael Scheurer
- Pediatric Hematology/Oncology, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas, USA
| | - Caitlin W. Elgarten
- Division of Oncology, Department of Pediatrics, Center for Childhood Cancer Research, Children’s Hospital of Philadelphia and Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Regina M. Myers
- Division of Oncology, Department of Pediatrics, Center for Childhood Cancer Research, Children’s Hospital of Philadelphia and Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Alix E. Seif
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Brian T. Fisher
- Department of Pediatrics, Division of Infectious Diseases, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Center for Pediatric Clinical Effectiveness, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Nirali N. Shah
- Pediatric Oncology Branch, Center for Cancer Research (CCR), National Cancer Institute (NCI), NIH, Bethesda, Maryland, USA
| | - Richard Aplenc
- Division of Oncology, Department of Pediatrics, Center for Childhood Cancer Research, Children’s Hospital of Philadelphia and Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Chemical and Synthetic Biology Approaches for Cancer Vaccine Development. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27206933. [PMID: 36296526 PMCID: PMC9611187 DOI: 10.3390/molecules27206933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/21/2022] [Accepted: 10/14/2022] [Indexed: 11/23/2022]
Abstract
Cancer vaccines have been considered promising therapeutic strategies and are often constructed from whole cells, attenuated pathogens, carbohydrates, peptides, nucleic acids, etc. However, the use of whole organisms or pathogens can elicit unwanted immune responses arising from unforeseen reactions to the vaccine components. On the other hand, synthetic vaccines, which contain antigens that are conjugated, often with carrier proteins, can overcome these issues. Therefore, in this review we have highlighted the synthetic approaches and discussed several bioconjugation strategies for developing antigen-based cancer vaccines. In addition, the major synthetic biology approaches that were used to develop genetically modified cancer vaccines and their progress in clinical research are summarized here. Furthermore, to boost the immune responses of any vaccines, the addition of suitable adjuvants and a proper delivery system are essential. Hence, this review also mentions the synthesis of adjuvants and utilization of biomaterial scaffolds, which may facilitate the design of future cancer vaccines.
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15
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Wei Inng Lim FL, Yunxin C, Huang FJ, Khee Hwang WY. A unique hub-and-spoke model to optimize patient management in lymphoma using novel CAR-T cell therapy in Southeast and South Asia. Hematol Oncol 2022; 40 Suppl 1:4-12. [PMID: 36047631 DOI: 10.1002/hon.3065] [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: 11/09/2022]
Abstract
Novel therapeutic options for cancer offer hope for patients and their families, particularly when the cancer has not responded to established treatment regimens. The CAR-T cell therapeutic approach has changed the treatment paradigm for relapsed or refractory lymphoma, extending the capacity of the patient's own T cells to detect and eliminate cancer cells through genetic modification of T-cell surface receptors. The process of establishing treatment centers and developing clinical expertize in this novel treatment strategy is complex. Time, resources, and a commitment to focusing health budgets on a new area are required. Currently, Singapore is the only country in southeast and south Asia with market authorization of the CAR-T product, tisagenlecleucel. Availability of CAR-T treatment across international borders provides patients in neighboring countries with choice in therapeutic options. This paper describes the unique hub-and-spoke cross-border collaboration developed between Singapore and its neighbors to provide access to CAR-T cell therapy for patients with relapsed or refractory lymphoma. To date in 2022, four patients have been included in the CAR-T treatment cross-border collaboration. Their stay in Singapore has been at least 2 months' duration, including the pre-treatment evaluation, apheresis, CAR-T cell infusion and post-treatment monitoring. Patient support from referring and treating physicians, critical to the success of the undertaking, is characterized by early communication, patient selection, multi-disciplinary care, post-treatment monitoring, and attention to detail. The patient journey and the development and implementation of this unique collaboration are discussed.
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Affiliation(s)
| | - Chen Yunxin
- Singapore General Hospital, Singapore, Singapore
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16
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Lim FLWI, Yunxin C, Huang FJ, Khee Hwang WY. A unique hub-and-spoke model to optimize patient management in lymphoma using novel chimeric antigen receptor-T cell therapy in Southeast and South Asia. Hematol Oncol 2022. [PMID: 35951479 DOI: 10.1002/hon.3057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/25/2022] [Accepted: 07/25/2022] [Indexed: 11/12/2022]
Abstract
Novel therapeutic options for cancer offer hope for patients and their families, particularly when the cancer has not responded to established treatment regimens. The chimeric antigen receptor (CAR)-T cell therapeutic approach has changed the treatment paradigm for relapsed or refractory lymphoma, extending the capacity of the patient's own T cells to detect and eliminate cancer cells through genetic modification of T-cell surface receptors. The process of establishing treatment centers and developing clinical expertize in this novel treatment strategy is complex. Time, resources, and a commitment to focusing health budgets on a new area are required. Currently, Singapore is the only country in southeast and south Asia with market authorization of the CAR-T product, tisagenlecleucel. Availability of CAR-T treatment across international borders provides patients in neighboring countries with choice in therapeutic options. This paper describes the unique hub-and-spoke cross-border collaboration developed between Singapore and its neighbors to provide access to CAR-T cell therapy for patients with relapsed or refractory lymphoma. To date in 2022, four patients have been included in the CAR-T treatment cross-border collaboration. Their stay in Singapore has been about 2 months' duration, including the pre-treatment evaluation, apheresis, CAR-T cell infusion and post-treatment monitoring. Patient support from referring and treating physicians, critical to the success of the undertaking, is characterized by early communication, patient selection, multi-disciplinary care, post-treatment monitoring, and attention to detail. The patient journey and the development and implementation of this unique collaboration are discussed.
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Affiliation(s)
| | - Chen Yunxin
- Singapore General Hospital, Singapore, Singapore
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17
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Harrer DC, Heidenreich M, Fante MA, Müller V, Haehnel V, Offner R, Burkhardt R, Herr W, Edinger M, Wolff D, Thomas S, Brosig A. Apheresis for chimeric antigen receptor T‐cell production in adult lymphoma patients. Transfusion 2022; 62:1602-1611. [DOI: 10.1111/trf.17030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/09/2022] [Accepted: 06/15/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Dennis Christoph Harrer
- Department of Internal Medicine III, Hematology and Oncology University Hospital Regensburg Regensburg Germany
| | - Martin Heidenreich
- Department of Internal Medicine III, Hematology and Oncology University Hospital Regensburg Regensburg Germany
| | - Matthias Alexander Fante
- Department of Internal Medicine III, Hematology and Oncology University Hospital Regensburg Regensburg Germany
| | - Viktoria Müller
- Institute for Clinical Chemistry, Laboratory Medicine and Transfusion Medicine University Hospital Regensburg Regensburg Germany
| | - Viola Haehnel
- Institute for Clinical Chemistry, Laboratory Medicine and Transfusion Medicine University Hospital Regensburg Regensburg Germany
| | - Robert Offner
- Institute for Clinical Chemistry, Laboratory Medicine and Transfusion Medicine University Hospital Regensburg Regensburg Germany
| | - Ralph Burkhardt
- Institute for Clinical Chemistry, Laboratory Medicine and Transfusion Medicine University Hospital Regensburg Regensburg Germany
| | - Wolfgang Herr
- Department of Internal Medicine III, Hematology and Oncology University Hospital Regensburg Regensburg Germany
| | - Matthias Edinger
- Department of Internal Medicine III, Hematology and Oncology University Hospital Regensburg Regensburg Germany
| | - Daniel Wolff
- Department of Internal Medicine III, Hematology and Oncology University Hospital Regensburg Regensburg Germany
| | - Simone Thomas
- Department of Internal Medicine III, Hematology and Oncology University Hospital Regensburg Regensburg Germany
- Leibniz Institute for Immunotherapy Division of Genetic‐Immunotherapy Regensburg Germany
| | - Andreas Brosig
- Institute for Clinical Chemistry, Laboratory Medicine and Transfusion Medicine University Hospital Regensburg Regensburg Germany
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Qayed M, McGuirk JP, Myers GD, Parameswaran V, Waller EK, Holman P, Rodrigues M, Clough LF, Willert J. Leukapheresis guidance and best practices for optimal chimeric antigen receptor T-cell manufacturing. Cytotherapy 2022; 24:869-878. [PMID: 35718701 DOI: 10.1016/j.jcyt.2022.05.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 04/22/2022] [Accepted: 05/11/2022] [Indexed: 11/03/2022]
Abstract
Chimeric antigen receptor (CAR) T-cell therapy is an individualized immunotherapy that genetically reprograms a patient's T cells to target and eliminate cancer cells. Tisagenlecleucel is a US Food and Drug Administration-approved CD19-directed CAR T-cell therapy for patients with relapsed/refractory (r/r) B-cell acute lymphoblastic leukemia and r/r diffuse large B-cell lymphoma. Manufacturing CAR T cells is an intricate process that begins with leukapheresis to obtain T cells from the patient's peripheral blood. An optimal leukapheresis product is essential to the success of CAR T-cell therapy; therefore, understanding factors that may affect the quality or T-cell content is imperative. CAR T-cell therapy requires detailed organization throughout the entire multistep process, including appropriate training of a multidisciplinary team in leukapheresis collection, cell processing, timing and coordination with manufacturing and administration to achieve suitable patient care. Consideration of logistical parameters, including leukapheresis timing, location and patient availability, when clinically evaluating the patient and the trajectory of their disease progression must be reflected in the overall collection strategy. Challenges of obtaining optimal leukapheresis product for CAR T-cell manufacturing include vascular access for smaller patients, achieving sufficient T-cell yield, eliminating contaminating cell types in the leukapheresis product, determining appropriate washout periods for medication and managing adverse events at collection. In this review, the authors provide recommendations on navigating CAR T-cell therapy and leukapheresis based on experience and data from tisagenlecleucel manufacturing in clinical trials and the real-world setting.
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Affiliation(s)
- Muna Qayed
- Blood and Marrow Transplant Program, Aflac Cancer and Blood Disorders Center, Emory University, Atlanta, Georgia, USA.
| | - Joseph P McGuirk
- Division of Hematologic Malignancies and Cellular Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - G Doug Myers
- Children's Mercy Hospital, Kansas City, Missouri, USA
| | - Vinod Parameswaran
- Avera Medical Group Hematology, Transplant & Cellular Therapy, Sioux Falls, South Dakota, USA
| | - Edmund K Waller
- Bone Marrow and Stem Cell Transplant Center, Winship Cancer Institute of Emory University, Atlanta, Georgia, USA
| | - Peter Holman
- Novartis Pharmaceuticals Corporation, East Hanover, New Jersey, USA
| | | | - Lee F Clough
- Novartis Pharmaceuticals Corporation, East Hanover, New Jersey, USA
| | - Jennifer Willert
- Novartis Pharmaceuticals Corporation, East Hanover, New Jersey, USA
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Sun Z, Liu M. Systematic review and meta-analysis of the association between bridging therapy and outcomes of chimeric antigen receptor T cell therapy in patients with large B cell lymphoma. Cytotherapy 2022; 24:940-953. [PMID: 35568624 DOI: 10.1016/j.jcyt.2022.03.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 03/06/2022] [Accepted: 03/14/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND The existing evidence about the impact of bridging therapy (BT) on chimeric antigen receptor (CAR)-T cell therapy in patients with large B cell lymphoma (LBCL) is conflicting. Therefore, we reviewed all available evidence to examine the association between BT and CAR-T therapy outcomes by systematic review and meta-analysis approach. METHODS Two reviewers independently searched Embase, PubMed, Web of Science, and Cochrane library to identify all records that described BT for LBCL treated with CAR-T. We then applied a fixed- or random-effects meta-analysis to estimate the pooled hazard ratios (HRs) and rate ratio (RRs) for efficacy and safety endpoints and assessed differences across various BT modalities. The Newcastle-Ottawa Scale was used to evaluate study quality. RESULTS Twenty-six reports from 24 studies involving 2014 patients were included in the analysis. Pooled results showed that patients requiring BT had significantly worse 1-year overall survival rate (RR = 0.76, 95% confidence interval [CI] 0.68-0.85, P < 0.001), 1-year progression-free survival rate (RR = 0.71, 95% CI 0.60-0.85, P < 0.001), progression-free survival (HR = 1.35, 95% CI 1.07-1.69, P = 0.01), overall response rate (RR = 0.88, 95% CI 0.81-0.95, P = 0.001), complete response rate (RR = 0.78, 95% CI 0.65-0.93, P = 0.005), and grade ≥3 immune effector cell-associated neurotoxicity syndrome (RR = 1.43, 95% CI 1.10-1.87, P = 0.007), and tended to have poorer overall survival (HR = 1.42, 95% CI 0.99-2.02, P = 0.056) and grade ≥3 cytokine release syndrome (RR = 1.59, 95% CI 0.92-2.75, P = 0.096). Prolonged cytopenias were the common toxicity event associated with BT. Radiotherapy may serve as a promising BT option that can provide safe and effective disease control for patients with LBCL before CAR-T infusion. The inconsistency of patient baselines in the current study hindered further comparisons between different BT modalities. Most of the available evidence was rated as low quality because of concerns over low comparability. CONCLUSION BT appears to be associated with comparatively poor efficacy and safety outcomes after CAR-T infusion. However, due to the considerable heterogeneity between the BT and non-BT cohorts at disease baseline, no definitive conclusions can be made for the true impact of BT on CAR-T until further randomized studies are conducted.
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Affiliation(s)
- Zhen Sun
- Hengyang Medical School, University of South China, Hengyang, China.
| | - MengSi Liu
- Hengyang Medical School, University of South China, Hengyang, China
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20
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Hayden PJ, Roddie C, Bader P, Basak GW, Bonig H, Bonini C, Chabannon C, Ciceri F, Corbacioglu S, Ellard R, Sanchez-Guijo F, Jäger U, Hildebrandt M, Hudecek M, Kersten MJ, Köhl U, Kuball J, Mielke S, Mohty M, Murray J, Nagler A, Rees J, Rioufol C, Saccardi R, Snowden JA, Styczynski J, Subklewe M, Thieblemont C, Topp M, Ispizua ÁU, Chen D, Vrhovac R, Gribben JG, Kröger N, Einsele H, Yakoub-Agha I. Management of adults and children receiving CAR T-cell therapy: 2021 best practice recommendations of the European Society for Blood and Marrow Transplantation (EBMT) and the Joint Accreditation Committee of ISCT and EBMT (JACIE) and the European Haematology Association (EHA). Ann Oncol 2022; 33:259-275. [PMID: 34923107 DOI: 10.1016/j.annonc.2021.12.003] [Citation(s) in RCA: 137] [Impact Index Per Article: 68.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 12/06/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Several commercial and academic autologous chimeric antigen receptor T-cell (CAR-T) products targeting CD19 have been approved in Europe for relapsed/refractory B-cell acute lymphoblastic leukemia, high-grade B-cell lymphoma and mantle cell lymphoma. Products for other diseases such as multiple myeloma and follicular lymphoma are likely to be approved by the European Medicines Agency in the near future. DESIGN The European Society for Blood and Marrow Transplantation (EBMT)-Joint Accreditation Committee of ISCT and EBMT (JACIE) and the European Haematology Association collaborated to draft best practice recommendations based on the current literature to support health care professionals in delivering consistent, high-quality care in this rapidly moving field. RESULTS Thirty-six CAR-T experts (medical, nursing, pharmacy/laboratory) assembled to draft recommendations to cover all aspects of CAR-T patient care and supply chain management, from patient selection to long-term follow-up, post-authorisation safety surveillance and regulatory issues. CONCLUSIONS We provide practical, clinically relevant recommendations on the use of these high-cost, logistically complex therapies for haematologists/oncologists, nurses and other stakeholders including pharmacists and health sector administrators involved in the delivery of CAR-T in the clinic.
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Affiliation(s)
- P J Hayden
- Department of Haematology, Trinity College Dublin, St. James's Hospital, Dublin, Ireland
| | - C Roddie
- UCL Cancer Institute, London, UK; University College London Hospital NHS Foundation Trust, London, UK.
| | - P Bader
- Clinic for Children and Adolescents, University Children's Hospital, Frankfurt, Germany
| | - G W Basak
- Medical University of Warsaw, Department of Hematology, Transplantation and Internal Medicine, Warsaw, Poland
| | - H Bonig
- Institute for Transfusion Medicine and Immunohematology of Goethe University and German Red Cross Blood Service, Frankfurt, Germany
| | - C Bonini
- Ospedale San Raffaele and Università Vita-Salute San Raffaele, Milan, Italy
| | - C Chabannon
- Aix-Marseille université, Inserm CBT-1409, Institut Paoli-Calmettes, centre de thérapie cellulaire, unité de transplantation et de thérapie cellulaire, département de biologie du cancer, Marseille, France
| | - F Ciceri
- Università Vita-Salute San Raffaele, IRCCS Ospedale San Raffaele, Milan, Italy
| | - S Corbacioglu
- Department of Pediatric Hematology, Oncology and Stem Cell Transplantation, University Franz-Josef-Strauss-Allee 11, University Hospital of Regensburg, Regensburg, Germany
| | - R Ellard
- Royal Marsden Hospital, Fulham Rd, London, UK
| | - F Sanchez-Guijo
- IBSAL-Hospital Universitario de Salamanca, CIC, Universidad de Salamanca, Salamanca, Spain
| | - U Jäger
- Clinical Department for Hematology and Hemostaseology, Medical University of Vienna, Vienna, Austria
| | - M Hildebrandt
- Department of Transfusion Medicine, Cell Therapeutics and Haemostaseology, LMU University Hospital Grosshadern, Munich
| | - M Hudecek
- Medizinische Klinik und Poliklinik II, Universitätsklinikum Würzburg, Würzburg, Germany
| | - M J Kersten
- Department of Hematology, Amsterdam UMC, University of Amsterdam, Cancer Center Amsterdam and LYMMCARE, Amsterdam, the Netherlands
| | - U Köhl
- Fraunhofer Institute for Cell Therapy and Immunology (IZI) and Institute of Clinical Immunology, University of Leipzig, Leipzig, Germany; Institute of Cellular Therapeutics, Hannover Medical School, Hannover, Germany
| | - J Kuball
- Department of Hematology and Centre for Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - S Mielke
- Karolinska Institutet and University Hospital, Department of Laboratory Medicine/Department of Cell Therapy and Allogeneic Stem Cell Transplantation (CAST), Stockholm, Sweden
| | - M Mohty
- Hôpital Saint-Antoine, APHP, Sorbonne Université, INSERM UMRs 938, Paris, France
| | - J Murray
- Christie Hospital NHS Trust, Manchester, UK
| | - A Nagler
- The Chaim Sheba Medical Center, Tel-Hashomer, affiliated with the Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - J Rees
- University College London Hospital NHS Foundation Trust, London, UK; UCL Institute of Neurology, University College of London Hospitals NHS Foundation Trust, London, UK
| | - C Rioufol
- Hospices Civils de Lyon, UCBL1, EMR 3738 CICLY, Lyon, France
| | - R Saccardi
- Cell Therapy and Transfusion Medicine Department, Careggi University Hospital, Florence, Italy
| | - J A Snowden
- Department of Haematology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - J Styczynski
- Department of Pediatric Hematology and Oncology, Collegium Medicum, Nicolaus Copernicus University Torun, Bydgoszcz, Poland
| | - M Subklewe
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - C Thieblemont
- AP-HP, Saint-Louis Hospital, Hemato-oncology, University of Paris, Paris, France
| | - M Topp
- Medizinische Klinik und Poliklinik II, Universitätsklinikum Würzburg, Würzburg, Germany
| | - Á U Ispizua
- Department of Hematology, ICMHO, Hospital Clínic de Barcelona, Barcelona, Spain
| | - D Chen
- University College London Hospital NHS Foundation Trust, London, UK; Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
| | - R Vrhovac
- Department of Haematology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - J G Gribben
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
| | - N Kröger
- Department of Stem Cell Transplantation, University Medical Center Hamburg, Germany
| | - H Einsele
- Medizinische Klinik und Poliklinik II, Universitätsklinikum Würzburg, Würzburg, Germany
| | - I Yakoub-Agha
- CHU de Lille, Univ Lille, INSERM U1286, Infinite, Lille, France
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21
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Lautraite R, Bernard L, Halle P, Chennell P, Le Basle Y, Kanold J, Sautou V. Ex Vivo Model to Assess the Exposure of Patients to Plasticizers from Medical Devices during Pre-CAR-T Cells’ Apheresis. TOXICS 2022; 10:toxics10020079. [PMID: 35202265 PMCID: PMC8875078 DOI: 10.3390/toxics10020079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/31/2022] [Accepted: 02/02/2022] [Indexed: 02/04/2023]
Abstract
Background: The treatment of relapsed or refractory leukemia remains a major problem. Among the new therapeutic approaches, the use of modified T lymphocytes, called chimeric antigen receptor T cells (CAR-T cells), seems promising. The first step of their preparation is leukapheresis, which involves the collection of mononuclear cells from the patient. This medical procedure requires numerous medical devices (MDs) made of plasticized polyvinylchloride (PVC). These compounds can leach out of the devices during contact with the patient’s blood. The aim of our study was to evaluate the migration of the plasticizers contained in the MD during a simulated pre-CAR-T cell leukapheresis procedure, and to measure the patient’s and their lymphocytes’ exposure to them. Methods: The qualitative and quantitative composition of the MD used for pre-CAR-T cell apheresis was determined by gas chromatography–mass spectrometry (GC–MS). Then, an ex vivo leukapheresis model using an ethanol/water simulant was performed to evaluate the plasticizers’ migration under simulated clinical conditions of pre-CAR-T cells’ cytapheresis. The plasticizers released into the simulant were quantified by GC–MS. Results: Diethylhexylphthalate (DEHP) was found in the apheresis kit, with amounts ranging from 25% to 59% (g/100 g of PVC). Bis(2-ethylhexyl) adipate was detected at trace levels. A total of 98.90 ± 11.42 mg of DEHP was released into the simulant, corresponding to an exposure dose of 1.4 mg/kg for a 70 kg patient. Conclusions: Patients undergoing a pre-CAR-T cell apheresis are mainly exposed to DEHP, which can impact their health because of its endocrine disruption effect, but could also lead to a decrease in CAR-T cells’ efficiency/quality.
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Affiliation(s)
- Raphaëlle Lautraite
- Université Clermont Auvergne, CHU Clermont Ferrand, Clermont Auvergne INP, CNRS, ICCF, F-63000 Clermont-Ferrand, France; (R.L.); (P.C.); (Y.L.B.); (V.S.)
| | - Lise Bernard
- Université Clermont Auvergne, CHU Clermont Ferrand, Clermont Auvergne INP, CNRS, ICCF, F-63000 Clermont-Ferrand, France; (R.L.); (P.C.); (Y.L.B.); (V.S.)
- Correspondence: ; Tel.: +33473751769
| | - Pascale Halle
- CHU Clermont-Ferrand, Centre de Biothérapie d’Auvergne, F-63000 Clermont-Ferrand, France; (P.H.); (J.K.)
| | - Philip Chennell
- Université Clermont Auvergne, CHU Clermont Ferrand, Clermont Auvergne INP, CNRS, ICCF, F-63000 Clermont-Ferrand, France; (R.L.); (P.C.); (Y.L.B.); (V.S.)
| | - Yoann Le Basle
- Université Clermont Auvergne, CHU Clermont Ferrand, Clermont Auvergne INP, CNRS, ICCF, F-63000 Clermont-Ferrand, France; (R.L.); (P.C.); (Y.L.B.); (V.S.)
| | - Justyna Kanold
- CHU Clermont-Ferrand, Centre de Biothérapie d’Auvergne, F-63000 Clermont-Ferrand, France; (P.H.); (J.K.)
- Université Clermont Auvergne, CHU Clermont-Ferrand, INSERM CIC 1405 Unité CRECHE, F-63000 Clermont–Ferrand, France
| | - Valérie Sautou
- Université Clermont Auvergne, CHU Clermont Ferrand, Clermont Auvergne INP, CNRS, ICCF, F-63000 Clermont-Ferrand, France; (R.L.); (P.C.); (Y.L.B.); (V.S.)
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22
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Buechner J, Caruana I, Künkele A, Rives S, Vettenranta K, Bader P, Peters C, Baruchel A, Calkoen FG. Chimeric Antigen Receptor T-Cell Therapy in Paediatric B-Cell Precursor Acute Lymphoblastic Leukaemia: Curative Treatment Option or Bridge to Transplant? Front Pediatr 2022; 9:784024. [PMID: 35145941 PMCID: PMC8823293 DOI: 10.3389/fped.2021.784024] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 12/02/2021] [Indexed: 01/02/2023] Open
Abstract
Chimeric antigen receptor T-cell therapy (CAR-T) targeting CD19 has been associated with remarkable responses in paediatric patients and adolescents and young adults (AYA) with relapsed/refractory (R/R) B-cell precursor acute lymphoblastic leukaemia (BCP-ALL). Tisagenlecleucel, the first approved CD19 CAR-T, has become a viable treatment option for paediatric patients and AYAs with BCP-ALL relapsing repeatedly or after haematopoietic stem cell transplantation (HSCT). Based on the chimeric antigen receptor molecular design and the presence of a 4-1BB costimulatory domain, tisagenlecleucel can persist for a long time and thereby provide sustained leukaemia control. "Real-world" experience with tisagenlecleucel confirms the safety and efficacy profile observed in the pivotal registration trial. Recent guidelines for the recognition, management and prevention of the two most common adverse events related to CAR-T - cytokine release syndrome and immune-cell-associated neurotoxicity syndrome - have helped to further decrease treatment toxicity. Consequently, the questions of how and for whom CD19 CAR-T could substitute HSCT in BCP-ALL are inevitable. Currently, 40-50% of R/R BCP-ALL patients relapse post CD19 CAR-T with either CD19- or CD19+ disease, and consolidative HSCT has been proposed to avoid disease recurrence. Contrarily, CD19 CAR-T is currently being investigated in the upfront treatment of high-risk BCP-ALL with an aim to avoid allogeneic HSCT and associated treatment-related morbidity, mortality and late effects. To improve survival and decrease long-term side effects in children with BCP-ALL, it is important to define parameters predicting the success or failure of CAR-T, allowing the careful selection of candidates in need of HSCT consolidation. In this review, we describe the current clinical evidence on CAR-T in BCP-ALL and discuss factors associated with response to or failure of this therapy: product specifications, patient- and disease-related factors and the impact of additional therapies given before (e.g., blinatumomab and inotuzumab ozogamicin) or after infusion (e.g., CAR-T re-infusion and/or checkpoint inhibition). We discuss where to position CAR-T in the treatment of BCP-ALL and present considerations for the design of supportive trials for the different phases of disease. Finally, we elaborate on clinical settings in which CAR-T might indeed replace HSCT.
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Affiliation(s)
- Jochen Buechner
- Department of Pediatric Hematology and Oncology, Oslo University Hospital, Oslo, Norway
| | - Ignazio Caruana
- Department of Paediatric Haematology, Oncology and Stem Cell Transplantation, University Hospital Würzburg, Würzburg, Germany
| | - Annette Künkele
- Department of Pediatric Oncology and Hematology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Susana Rives
- Department of Pediatric Hematology and Oncology, Hospital Sant Joan de Déu de Barcelona, Institut per la Recerca Sant Joan de Déu, Barcelona, Spain
| | - Kim Vettenranta
- University of Helsinki and Children's Hospital, University of Helsinki, Helsinki, Finland
| | - Peter Bader
- Division for Stem Cell Transplantation, Immunology and Intensive Care Medicine, Department for Children and Adolescents, University Hospital, Goethe University, Frankfurt, Germany
| | - Christina Peters
- St. Anna Children's Hospital, Medical University Vienna, Vienna, Austria
- St. Anna Children's Cancer Research Institute, Vienna, Austria
| | - André Baruchel
- Université de Paris et Institut de Recherche Saint-Louis (EA 35-18) and Hôpital Universitaire Robert Debré (APHP), Paris, France
| | - Friso G. Calkoen
- Department of Stem Cell Transplantation and Cellular Therapy, Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
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23
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Bhaskar ST, Dholaria BR, Sengsayadeth SM, Savani BN, Oluwole OO. Role of bridging therapy during chimeric antigen receptor T cell therapy. EJHAEM 2022; 3:39-45. [PMID: 35844303 PMCID: PMC9175845 DOI: 10.1002/jha2.335] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 06/15/2023]
Abstract
Chimeric antigen receptor (CAR) T-cell therapy has been approved for use in several relapsed/refractory hematologic malignancies and has significantly improved outcomes for these diseases. A number of different CAR T products are now being used in clinical practice and have demonstrated excellent outcomes to those in clinical trials. However, increased real-world use of CAR T therapy has uncovered a number of barriers that can lead to significant delays in treatment. As a result, bridging therapy has become a widely used tool to stabilize or debulk disease between leukapheresis and CAR T cell administration. Here we review the available data regarding bridging therapy, with a focus on patient selection, choice of therapy, timing of therapy, and potential pitfalls.
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Affiliation(s)
- Shakthi T. Bhaskar
- Division of Hematology/OncologyDepartment of MedicineVanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Bhagirathbhai R. Dholaria
- Division of Hematology/OncologyDepartment of MedicineVanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Salyka M. Sengsayadeth
- Division of Hematology/OncologyDepartment of MedicineVanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Bipin N. Savani
- Division of Hematology/OncologyDepartment of MedicineVanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Olalekan O. Oluwole
- Division of Hematology/OncologyDepartment of MedicineVanderbilt University Medical CenterNashvilleTennesseeUSA
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24
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Mehta PH, Fiorenza S, Koldej RM, Jaworowski A, Ritchie DS, Quinn KM. T Cell Fitness and Autologous CAR T Cell Therapy in Haematologic Malignancy. Front Immunol 2021; 12:780442. [PMID: 34899742 PMCID: PMC8658247 DOI: 10.3389/fimmu.2021.780442] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/05/2021] [Indexed: 12/14/2022] Open
Abstract
A range of emerging therapeutic approaches for the treatment of cancer aim to induce or augment endogenous T cell responses. Chimeric antigen receptor (CAR) T cell therapy (CTT) is one such approach that utilises the patient’s own T cells, engineered ex vivo to target cell surface antigens, to eliminate haematological malignancies. Despite mediating high rates of responses in some clinical trials, this approach can be limited by dysfunctional T cells if they are present at high frequencies either in the starting material from the patient or the CAR T cell product. The fitness of an individual’s T cells, driven by age, chronic infection, disease burden and cancer treatment, is therefore likely to be a crucial limiting factor of CTT. Currently, T cell dysfunction and its impact on CTT is not specifically quantified when patients are considering the therapy. Here, we review our current understanding of T cell fitness for CTT, how fitness may be impacted by age, chronic infection, malignancy, and treatment. Finally, we explore options to specifically tailor clinical decision-making and the CTT protocol for patients with more extensive dysfunction to improve treatment efficacy. A greater understanding of T cell fitness throughout a patient’s treatment course could ultimately be used to identify patients likely to achieve favourable CTT outcomes and improve methods for T cell collection and CTT delivery.
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Affiliation(s)
- Palak H Mehta
- School of Health and Biomedical Sciences, Royal Melbourne Institute of Technology (RMIT) University, Bundoora, VIC, Australia
| | - Salvatore Fiorenza
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Rachel M Koldej
- Australian Cancer Research Foundation (ACRF) Translational Laboratory, Royal Melbourne Hospital, Melbourne, VIC, Australia.,Department of Medicine, University of Melbourne, Melbourne, VIC, Australia
| | - Anthony Jaworowski
- School of Health and Biomedical Sciences, Royal Melbourne Institute of Technology (RMIT) University, Bundoora, VIC, Australia
| | - David S Ritchie
- Australian Cancer Research Foundation (ACRF) Translational Laboratory, Royal Melbourne Hospital, Melbourne, VIC, Australia.,Department of Medicine, University of Melbourne, Melbourne, VIC, Australia
| | - Kylie M Quinn
- School of Health and Biomedical Sciences, Royal Melbourne Institute of Technology (RMIT) University, Bundoora, VIC, Australia.,Department of Biochemistry, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
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25
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Seber A, de CastroJunior CG, Kerbauy LN, Hirayama AV, Bonfim C, Fernandes JF, Souza M, Schafell R, Nabhan S, Loggetto SR, Simões BP, Rocha V, de Lima M, Guerino-Cunha RL, Bittencourt H. Associação Brasileira de Hematologia, Hemoterapia e Terapia Celular Consensus on genetically modified cells. II: CAR-T cell therapy for patients with CD19+ acute lymphoblastic leukemia. Hematol Transfus Cell Ther 2021; 43 Suppl 2:S13-S21. [PMID: 34794791 PMCID: PMC8606700 DOI: 10.1016/j.htct.2021.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 12/02/2022] Open
Abstract
Chimeric antigen receptor T (CAR-T) cell therapy is a novel therapeutic modality for acute lymphoblastic leukemia (ALL) with robust outcomes in patients with refractory or relapsed disease. At the same time, CAR-T cell therapy is associated with unique and potentially fatal toxicities, such as cytokine release syndrome (CRS) and neurological toxicities (ICANS). This manuscript aims to provide a consensus of specialists in the fields of Hematology Oncology and Cellular Therapy to make recommendations on the current scenario of the use of CAR-T cells in patients with ALL.
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Affiliation(s)
- Adriana Seber
- Hospital Samaritano Higienópolis, São Paulo, SP, Brazil; Hospital Infantil Sabará, São Paulo, SP, Brazil
| | | | | | | | - Carmem Bonfim
- Hospital Pequeno Príncipe, Curitiba, PR, Brazil; Hospital de Clínicas, Universidade Federal do Paraná (HC UFPR), Curitiba, PR, Brazil
| | - Juliana Folloni Fernandes
- Hospital Israelita Albert Einstein, São Paulo, SP, Brazil; Instituto do Tratamento do Câncer Infantil, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HC FMUSP), São Paulo, SP, Brazil
| | - Mair Souza
- Hospital Amaral Carvalho, Jaú, SP, Brazil
| | - Rony Schafell
- Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro (HUCFF UFRJ), Rio de Janeiro, RJ, Brazil
| | - Samir Nabhan
- Hospital de Clínicas - Universidade Federal do Paraná, (HC UFPR), Curitiba, PR, Brazil
| | - Sandra Regina Loggetto
- Hospital Infantil Sabará, São Paulo, SP, Brazil; Grupo Gestor de Serviços de Hematologia (GSH), São Paulo, SP, Brazil
| | | | - Vanderson Rocha
- Hospital das Clínicas, Universidade de São Paulo, (HC USP), São Paulo, SP, Brazil; Hospital Vila Nova Star, São Paulo, SP, Brazil
| | | | - Renato L Guerino-Cunha
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (FMRP-USP), Ribeirão Preto, SP, Brazil.
| | - Henrique Bittencourt
- Centre Hospitalier Universitaire Sainte-Justine (CHU Sainte-Justine), Montreal, Qc, Canada; Université de Montreal, Montreal, Qc, Canada
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26
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De Santis GC, Langhi Junior DM, Feitoza A, Mendrone Junior A, Kutner JM, Covas DT, Couto SCF, Guerino-Cunha RL, Orellana MD, Rizzo SRCP. Associação Brasileira de Hematologia, Hemoterapia e Terapia Celular Consensus on genetically modified cells. V: Manufacture and quality control. Hematol Transfus Cell Ther 2021; 43 Suppl 2:S35-S41. [PMID: 34794795 PMCID: PMC8606711 DOI: 10.1016/j.htct.2021.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 09/14/2021] [Indexed: 11/26/2022] Open
Abstract
Chimeric antigen receptor T cells (CAR-T), especially against CD19 marker, present in lymphomas and acute B leukemia, enabled a revolution in the treatment of hematologic neoplastic diseases. The manufacture of CAR-T cells requires the adoption of GMP-compatible methods and it demands the collection of mononuclear cells from the patient (or from the donor), generally through the apheresis procedure, T cell selection, activation, transduction and expansion ex vivo, and finally storage, usually cryopreserved, until the moment of their use. An important aspect is the quality control testing of the final product, for example, the characterization of its identity and purity, tests to detect any contamination by microorganisms (bacteria, fungi, and mycoplasma) and its potency. The product thawing and intravenous infusion do not differ much from what is established for the hematopoietic progenitor cell product. After infusion, it is important to check for the presence and concentration of CAR-T cells in the patient's peripheral blood, as well as to monitor their clinical impact, for instance, the occurrence of short-term, such as cytokine release syndrome and neurological complications, and long-term complications, which require patient follow-up for many years.
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Affiliation(s)
- Gil Cunha De Santis
- Hemocentro de Ribeirão Preto, Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (HCFMRP-USP), Ribeirão Preto, SP, Brazil.
| | | | | | | | | | - Dimas Tadeu Covas
- Hemocentro de Ribeirão Preto, Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (HCFMRP-USP), Ribeirão Preto, SP, Brazil; Instituto Butantan, São Paulo, SP, Brazil
| | | | - Renato L Guerino-Cunha
- Departamento de Imagens Médicas, Hematologia e Oncologia Clínica, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
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27
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Sensitivity and Specificity of CD19.CAR-T Cell Detection by Flow Cytometry and PCR. Cells 2021; 10:cells10113208. [PMID: 34831430 PMCID: PMC8621201 DOI: 10.3390/cells10113208] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/07/2021] [Accepted: 11/10/2021] [Indexed: 11/16/2022] Open
Abstract
Chimeric-antigen-receptor-T (CAR-T) cells are currently revolutionizing the field of cancer immunotherapy. Therefore, there is an urgent need for CAR-T cell monitoring by clinicians to assess cell expansion and persistence in patients. CAR-T cell manufacturers and researchers need to evaluate transduction efficiency and vector copy number for quality control. Here, CAR expression was analyzed in peripheral blood samples from patients and healthy donors by flow cytometry with four commercially available detection reagents and on the gene level by quantitative polymerase chain reaction (qPCR). Flow cytometric analysis of CAR expression showed higher mean CAR expression values for CD19 CAR detection reagent and the F(ab')2 antibody than Protein L and CD19 Protein. In addition, the CD19 CAR detection reagent showed a significantly lower median background staining of 0.02% (range 0.007-0.06%) when compared to the F(ab')2 antibody, CD19 protein and Protein L with 0.80% (range 0.47-1.58%), 0.65% (range 0.25-1.35%) and 0.73% (range 0.44-1.23%). Furthermore, flow cytometry-based CAR-T cell frequencies by CD19 CAR detection reagent showed a good correlation with qPCR results. In conclusion, quality control of CAR-T cell products can be performed by FACS and qPCR. For the monitoring of CAR-T cell frequencies by FACS in patients, CAR detection reagents with a low background staining are preferable.
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28
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Hernández-López A, Téllez-González MA, Mondragón-Terán P, Meneses-Acosta A. Chimeric Antigen Receptor-T Cells: A Pharmaceutical Scope. Front Pharmacol 2021; 12:720692. [PMID: 34489708 PMCID: PMC8417740 DOI: 10.3389/fphar.2021.720692] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/02/2021] [Indexed: 12/18/2022] Open
Abstract
Cancer is among the leading causes of death worldwide. Therefore, improving cancer therapeutic strategies using novel alternatives is a top priority on the contemporary scientific agenda. An example of such strategies is immunotherapy, which is based on teaching the immune system to recognize, attack, and kill malignant cancer cells. Several types of immunotherapies are currently used to treat cancer, including adoptive cell therapy (ACT). Chimeric Antigen Receptors therapy (CAR therapy) is a kind of ATC where autologous T cells are genetically engineered to express CARs (CAR-T cells) to specifically kill the tumor cells. CAR-T cell therapy is an opportunity to treat patients that have not responded to other first-line cancer treatments. Nowadays, this type of therapy still has many challenges to overcome to be considered as a first-line clinical treatment. This emerging technology is still classified as an advanced therapy from the pharmaceutical point of view, hence, for it to be applied it must firstly meet certain requirements demanded by the authority. For this reason, the aim of this review is to present a global vision of different immunotherapies and focus on CAR-T cell technology analyzing its elements, its history, and its challenges. Furthermore, analyzing the opportunity areas for CAR-T technology to become an affordable treatment modality taking the basic, clinical, and practical aspects into consideration.
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Affiliation(s)
- Alejandrina Hernández-López
- Laboratorio 7 Biotecnología Farmacéutica, Facultad de Farmacia, Universidad Autónoma Del Estado de Morelos, UAEM, Cuernavaca, Mexico
| | - Mario A. Téllez-González
- Laboratorio 7 Biotecnología Farmacéutica, Facultad de Farmacia, Universidad Autónoma Del Estado de Morelos, UAEM, Cuernavaca, Mexico
- Coordinación de Investigación, Centro Médico Nacional “20 de Noviembre” ISSSTE, Mexico city, Mexico
| | - Paul Mondragón-Terán
- Coordinación de Investigación, Centro Médico Nacional “20 de Noviembre” ISSSTE, Mexico city, Mexico
| | - Angélica Meneses-Acosta
- Laboratorio 7 Biotecnología Farmacéutica, Facultad de Farmacia, Universidad Autónoma Del Estado de Morelos, UAEM, Cuernavaca, Mexico
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29
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Han L, Zhou J, Li L, Zhou K, Zhao L, Zhu X, Yin Q, Li Y, You H, Zhang J, Song Y, Gao Q. Culturing adequate CAR-T cells from less peripheral blood to treat B-cell malignancies. Cancer Biol Med 2021; 18:j.issn.2095-3941.2021.0040. [PMID: 34390235 PMCID: PMC8610157 DOI: 10.20892/j.issn.2095-3941.2021.0040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 04/07/2021] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE Chimeric antigen receptor-modified T (CAR-T) cells have shown impressive results against relapsed/refractory B cell malignancies. However, the traditional manufacture of CAR-T cells requires leukapheresis to isolate large amounts of peripheral blood T cells, thus making some patients ineligible for the procedure. METHODS We developed a simple method for CAR-T cell preparation requiring small volumes of peripheral blood. First, CD3+ T cells isolated from 50 mL peripheral blood from patients (B-cell malignancies) were stimulated with immobilized anti-CD3/RetroNectin in 6-well plates and then transduced with CAR-expressing lentiviral vector. After 4 d, the T cells were transferred to culture bags for large-scale CAR-T cell expansion. In vitro and animal experiments were performed to evaluate the activity of the manufactured CAR-T cells. Finally, 29 patients with B-cell acute lymphoblastic leukemia (B-ALL) and 9 patients with B-cell lymphoma were treated with the CAR-T cells. RESULTS The CAR-T cells were expanded to 1-3 × 108 cells in 8-10 d and successfully killed B cell-derived malignant tumor cells in vitro and in vivo. For patients with B-ALL, the complete remission rate was 93% 1 month after CAR-T cell infusion; after 12 months, the overall survival (OS) and leukemia-free survival rates were 69% and 31%, respectively. For patients with lymphoma, the objective response rate (including complete and partial remission) was 78% 2 months after CAR-T cell infusion, and after 12 months, the OS and progression-free survival rates were 71% and 43%, respectively. Cytokine-release syndrome (CRS) occurred in 65.51% and 55.56% of patients with B-ALL and B-cell lymphoma, respectively; severe CRS developed in 20.69% of patients with B-ALL and in no patients with lymphoma. CONCLUSIONS Our novel method can generate sufficient numbers of CAR-T cells for clinical use from 50-100 mL peripheral blood, thus providing an alternative means of CAR-T cell generation for patients ineligible for leukapheresis.
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Affiliation(s)
- Lu Han
- Department of Immunology, Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou 450008, China
| | - Jian Zhou
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou 450008, China
| | - Linlin Li
- Department of Medical Microbiology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China
| | - Keshu Zhou
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou 450008, China
| | - Lingdi Zhao
- Department of Immunology, Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou 450008, China
| | - Xinghu Zhu
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou 450008, China
| | - Qingsong Yin
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou 450008, China
| | - Yufu Li
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou 450008, China
| | - Hongqin You
- Department of Immunology, Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou 450008, China
| | - Jishuai Zhang
- The Shenzhen Pregene Biopharma Company, Ltd., Shenzhen 518118, China
| | - Yongping Song
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou 450008, China
| | - Quanli Gao
- Department of Immunology, Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou 450008, China
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Meng J, Wu X, Sun Z, Xun R, Liu M, Hu R, Huang J. Efficacy and Safety of CAR-T Cell Products Axicabtagene Ciloleucel, Tisagenlecleucel, and Lisocabtagene Maraleucel for the Treatment of Hematologic Malignancies: A Systematic Review and Meta-Analysis. Front Oncol 2021; 11:698607. [PMID: 34381720 PMCID: PMC8350577 DOI: 10.3389/fonc.2021.698607] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/25/2021] [Indexed: 12/29/2022] Open
Abstract
Background Currently, three chimeric antigen receptor (CAR)-T cell products axicabtagene ciloleucel, tisagenlecleucel, and lisocabtagene maraleucel have been approved by the U.S. Food and Drug Administration for the treatment of large B cell lymphoma, which provide a novel and promising choice for patients with relapsed or refractory to traditional anti-tumor treatments. Thus, it is pertinent to describe the efficacy and safety profile of the three products available by summarizing the current evidence. Methods Two reviewers independently searched the Embase, PubMed, Web of Science, and Cochrane Library, to identify studies related to the use of the three CAR-T cell products for treating hematologic malignancies published up to October 5, 2020. We pooled the overall response rate, complete response rate, cytokine release syndrome, and immune effector cell-associated neurotoxicity syndrome of three products, and then performed subgroup analysis based on the type of product and type of tumor. Results Thirty-three studies involving 2,172 patients were included in the analysis. All three products showed promising results in patients with different pathological subtypes and clinical characteristics that included those who did not meet the eligibility criteria of licensing trials, with overall response rates of nearly 70% or above and complete response rates of more than 50%. However, high rates of severe immune effector cell-associated neurotoxicity syndrome in patients undergoing axicabtagene ciloleucel treatment and life-threatening cytokine release syndrome in patients with leukemia undergoing tisagenlecleucel treatment required special attention in practice (31%; 95% CI: 0.27–0.35 and 55%; 95% CI: 0.45–0.64, respectively). Moreover, lisocabtagene maraleucel that showed a favorable efficacy and safety in the licensing trial lacked corresponding real-world data. Conclusion Both axicabtagene ciloleucel and tisagenlecleucel showed considerable efficacy in practice, but need special attention with respect to life-threatening toxicity that can occur in certain situations. Lisocabtagene maraleucel demonstrated excellent efficacy and safety profiles in the licensing trial, but lacked corresponding real-world data. Additional data on the three products are needed in rare histological subtypes to benefit a broader patient population.
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Affiliation(s)
- Jun Meng
- Molecular Genetics Laboratory, Suining Central Hospital, Suining, China
| | - XiaoQin Wu
- Department of Neurosurgery, The First Affiliated Hospital, University of South China, Hengyang, China
| | - Zhen Sun
- Hengyang Medical College, University of South China, Hengyang, China
| | - RenDe Xun
- Department of Neurosurgery, The First Affiliated Hospital, University of South China, Hengyang, China
| | - MengSi Liu
- Hengyang Medical College, University of South China, Hengyang, China
| | - Rui Hu
- Hengyang Medical College, University of South China, Hengyang, China
| | - JianChao Huang
- Department of Neurosurgery, The First Affiliated Hospital, University of South China, Hengyang, China
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van Schalkwyk MCI, van der Stegen SJC, Bosshard-Carter L, Graves H, Papa S, Parente-Pereira AC, Farzaneh F, Fisher CD, Hope A, Adami A, Maher J. Development and Validation of a Good Manufacturing Process for IL-4-Driven Expansion of Chimeric Cytokine Receptor-Expressing CAR T-Cells. Cells 2021; 10:cells10071797. [PMID: 34359966 PMCID: PMC8307141 DOI: 10.3390/cells10071797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 07/01/2021] [Accepted: 07/14/2021] [Indexed: 12/22/2022] Open
Abstract
Adoptive cancer immunotherapy using chimeric antigen receptor (CAR) engineered T-cells holds great promise, although several obstacles hinder the efficient generation of cell products under good manufacturing practice (GMP). Patients are often immune compromised, rendering it challenging to produce sufficient numbers of gene-modified cells. Manufacturing protocols are labour intensive and frequently involve one or more open processing steps, leading to increased risk of contamination. We set out to develop a simplified process to generate autologous gamma retrovirus-transduced T-cells for clinical evaluation in patients with head and neck cancer. T-cells were engineered to co-express a panErbB-specific CAR (T1E28z) and a chimeric cytokine receptor (4αβ) that permits their selective expansion in response to interleukin (IL)-4. Using peripheral blood as starting material, sterile culture procedures were conducted in gas-permeable bags under static conditions. Pre-aliquoted medium and cytokines, bespoke connector devices and sterile welding/sealing were used to maximise the use of closed manufacturing steps. Reproducible IL-4-dependent expansion and enrichment of CAR-engineered T-cells under GMP was achieved, both from patients and healthy donors. We also describe the development and approach taken to validate a panel of monitoring and critical release assays, which provide objective data on cell product quality.
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Affiliation(s)
- May C. I. van Schalkwyk
- Guy’s Cancer Centre, School of Cancer and Pharmaceutical Sciences, King’s College London, Great Maze Pond, London SE1 9RT, UK; (M.C.I.v.S.); (S.J.C.v.d.S.); (L.B.-C.); (S.P.); (A.C.P.-P.); (A.A.)
| | - Sjoukje J. C. van der Stegen
- Guy’s Cancer Centre, School of Cancer and Pharmaceutical Sciences, King’s College London, Great Maze Pond, London SE1 9RT, UK; (M.C.I.v.S.); (S.J.C.v.d.S.); (L.B.-C.); (S.P.); (A.C.P.-P.); (A.A.)
| | - Leticia Bosshard-Carter
- Guy’s Cancer Centre, School of Cancer and Pharmaceutical Sciences, King’s College London, Great Maze Pond, London SE1 9RT, UK; (M.C.I.v.S.); (S.J.C.v.d.S.); (L.B.-C.); (S.P.); (A.C.P.-P.); (A.A.)
| | - Helen Graves
- Immune Monitoring Laboratory, Clinical Research Facility, NIHR Biomedical Research Centre at Guy’s and St Thomas’ NHS Foundation Trust and King’s College London, Great Maze Pond, London SE1 9RT, UK;
| | - Sophie Papa
- Guy’s Cancer Centre, School of Cancer and Pharmaceutical Sciences, King’s College London, Great Maze Pond, London SE1 9RT, UK; (M.C.I.v.S.); (S.J.C.v.d.S.); (L.B.-C.); (S.P.); (A.C.P.-P.); (A.A.)
- Guy’s and St Thomas’ NHS Foundation Trust, Department of Medical Oncology, Great Maze Pond, London SE1 9RT, UK
| | - Ana C. Parente-Pereira
- Guy’s Cancer Centre, School of Cancer and Pharmaceutical Sciences, King’s College London, Great Maze Pond, London SE1 9RT, UK; (M.C.I.v.S.); (S.J.C.v.d.S.); (L.B.-C.); (S.P.); (A.C.P.-P.); (A.A.)
| | - Farzin Farzaneh
- The Rayne Institute, School of Cancer and Pharmaceutical Sciences, King’s College London, London SE5 9NU, UK;
| | - Christopher D. Fisher
- Good Manufacturing Practice Unit, Clinical Research Facility, NIHR Biomedical Research Centre at Guy’s and St Thomas’ NHS Foundation Trust and King’s College London, Great Maze Pond, London SE1 9RT, UK; (C.D.F.); (A.H.)
| | - Andrew Hope
- Good Manufacturing Practice Unit, Clinical Research Facility, NIHR Biomedical Research Centre at Guy’s and St Thomas’ NHS Foundation Trust and King’s College London, Great Maze Pond, London SE1 9RT, UK; (C.D.F.); (A.H.)
| | - Antonella Adami
- Guy’s Cancer Centre, School of Cancer and Pharmaceutical Sciences, King’s College London, Great Maze Pond, London SE1 9RT, UK; (M.C.I.v.S.); (S.J.C.v.d.S.); (L.B.-C.); (S.P.); (A.C.P.-P.); (A.A.)
| | - John Maher
- Guy’s Cancer Centre, School of Cancer and Pharmaceutical Sciences, King’s College London, Great Maze Pond, London SE1 9RT, UK; (M.C.I.v.S.); (S.J.C.v.d.S.); (L.B.-C.); (S.P.); (A.C.P.-P.); (A.A.)
- Department of Immunology, Eastbourne Hospital, Kings Drive, Eastbourne BN21 2UD, UK
- Department of Clinical Immunology and Allergy, King’s College Hospital NHS Foundation Trust, Denmark Hill, London SE5 9RS, UK
- Leucid Bio Ltd., Guy’s Hospital, Great Maze Pond, London SE1 9RT, UK
- Correspondence: ; Tel.: +44-(0)207188-1468
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Gustafson MP, Wheatley-Guy CM, Rosenthal AC, Gastineau DA, Katsanis E, Johnson BD, Simpson RJ. Exercise and the immune system: taking steps to improve responses to cancer immunotherapy. J Immunother Cancer 2021; 9:e001872. [PMID: 34215686 PMCID: PMC8256759 DOI: 10.1136/jitc-2020-001872] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2021] [Indexed: 12/18/2022] Open
Abstract
The remarkable success of cancer immunotherapies has provided new hope to cancer patients. Unfortunately, a significant proportion of patients remain unable to respond to immunotherapy or maintain durable clinical responses. The lack of objective responses likely results from profound immune dysfunction often observed in patients with cancer. There is substantial evidence that exercise and physical activity can reduce incidence and improve outcomes in cancer patients. As the immune system is highly responsive to exercise, one potential avenue to improve immune function is through exercise and physical activity. A single event of dynamic exercise results in the substantial mobilization of leukocytes with increased functional capacities into the circulation. Chronic, or long-term, exercise leads to higher physical fitness in terms of greater cardiorespiratory function and/or muscle strength and endurance. High aerobic capacity, as measured by maximal oxygen uptake, has been associated with the reduction of dysfunctional T cells and improvements in the abundance of some T cell populations. To be sure, however, the mechanisms of exercise-mediated immune changes are both extensive and diverse. Here, we examine the evidence and theorize how acute and chronic exercise could be used to improve responses to cancer immunotherapies including immune checkpoint inhibitors, dendritic cell vaccines, natural killer cell therapies, and adoptive T cell therapies such as chimeric antigen receptor (CAR) T cells. Although the parameters of optimal exercise to yield defined outcomes remain to be determined, the available current data provide a compelling justification for additional human studies and clinical trials investigating the adjuvant use of exercise in immuno-oncology.
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Affiliation(s)
- Michael P Gustafson
- Laboratory Medicine and Pathology, Mayo Clinic Arizona, Phoenix, Arizona, USA
| | | | | | - Dennis A Gastineau
- Laboratory Medicine and Pathology, Mayo Clinic Arizona, Phoenix, Arizona, USA
| | - Emmanuel Katsanis
- Pediatrics, Immunobiology, University of Arizona Medical Center - University Campus, Tucson, Arizona, USA
| | - Bruce D Johnson
- Department of Cardiovascular Diseases, Mayo Clinic Arizona, Scottsdale, Arizona, USA
| | - Richard J Simpson
- Pediatrics, Immunobiology, and Nutritional Sciences, University of Arizona Medical Center - University Campus, Tucson, Arizona, USA
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Optimizing leukapheresis product yield and purity for blood cell-based gene and immune effector cell therapy. Curr Opin Hematol 2021; 27:415-422. [PMID: 32889828 DOI: 10.1097/moh.0000000000000611] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
PURPOSE OF REVIEW A critical common step for blood-based ex-vivo gene and immune effector cell (IEC) therapies is the collection of target cells for further processing and manufacturing, often accomplished through a leukapheresis procedure to collect mononuclear cells (MNCs). The purpose of this review is to describe strategies to optimize the apheresis product cell yield and purity for gene and IEC therapies. Relevant data from the conventional bone marrow transplant literature is described where applicable. RECENT FINDINGS Product yield is affected by three main factors: the peripheral blood concentration of the target cell, optimized by mobilizing agents, donor interventions or donor selection; the volume of peripheral blood processed, tailored to the desired product yield using prediction algorithms; and target cell collection efficiency, optimized by a variety of device and donor-specific considerations. Factors affecting product purity include characteristics of the donor, mobilizing agent, device, and device settings. SUMMARY Strategies to optimize product yield and purity for gene and IEC therapies are important to consider because of loss of target cell numbers or function with downstream steps and detrimental effects of nontarget cells on further manufacturing and patient outcome.
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Karschnia P, Blobner J, Teske N, Schöberl F, Fitzinger E, Dreyling M, Tonn JC, Thon N, Subklewe M, von Baumgarten L. CAR T-Cells for CNS Lymphoma: Driving into New Terrain? Cancers (Basel) 2021; 13:cancers13102503. [PMID: 34065471 PMCID: PMC8161128 DOI: 10.3390/cancers13102503] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/10/2021] [Accepted: 05/17/2021] [Indexed: 12/13/2022] Open
Abstract
Primary CNS lymphomas (PCNSL) represent a group of extranodal non-Hodgkin lymphomas and secondary CNS lymphomas refer to secondary involvement of the neuroaxis by systemic disease. CNS lymphomas are associated with limited prognosis even after aggressive multimodal therapy. Chimeric antigen receptor (CAR) T-cells have proven as a promising therapeutic avenue in hematological B-cell malignancies including diffuse large B-cell lymphoma, B-cell acute lymphoblastic leukemia, and mantle-cell lymphoma. CARs endow an autologous T-cell population with MHC-unrestricted effectivity against tumor target antigens such as the pan B-cell marker CD19. In PCNSL, compelling and long-lasting anti-tumor effects of such therapy have been shown in murine immunocompromised models. In clinical studies on CAR T-cells for CNS lymphoma, only limited data are available and often include both patients with PCNSL but also patients with secondary CNS lymphoma. Several clinical trials on CAR T-cell therapy for primary and secondary CNS lymphoma are currently ongoing. Extrapolated from the available preliminary data, an overall acceptable safety profile with considerable anti-tumor effects might be expected. Whether these beneficial anti-tumor effects are as long-lasting as in animal models is currently in doubt; and the immunosuppressive tumor microenvironment of the brain may be among the most pivotal factors limiting efficacy of CAR T-cell therapy in CNS lymphoma. Based on an increasing understanding of CAR T-cell interactions with the tumor cells as well as the cerebral tissue, modifications of CAR design or the combination of CAR T-cell therapy with other therapeutic approaches may aid to release the full therapeutic efficiency of CAR T-cells. CAR T-cells may therefore emerge as a novel treatment strategy in primary and secondary CNS lymphoma.
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Affiliation(s)
- Philipp Karschnia
- Department of Neurosurgery, Division of Neuro-Oncology, Ludwig Maximilians University School of Medicine, Marchioninistrasse, 1581377 Munich, Germany; (J.B.); (N.T.); (E.F.); (J.-C.T.); (N.T.)
- German Cancer Consortium (DKTK), Partner Site Munich, 80336 Munich, Germany;
- Correspondence: (P.K.); (L.v.B.); Tel.: +49-(0)89-4400-711365 (P.K.); +49-(0)89-4400-712363 (L.v.B.)
| | - Jens Blobner
- Department of Neurosurgery, Division of Neuro-Oncology, Ludwig Maximilians University School of Medicine, Marchioninistrasse, 1581377 Munich, Germany; (J.B.); (N.T.); (E.F.); (J.-C.T.); (N.T.)
- German Cancer Consortium (DKTK), Partner Site Munich, 80336 Munich, Germany;
| | - Nico Teske
- Department of Neurosurgery, Division of Neuro-Oncology, Ludwig Maximilians University School of Medicine, Marchioninistrasse, 1581377 Munich, Germany; (J.B.); (N.T.); (E.F.); (J.-C.T.); (N.T.)
- German Cancer Consortium (DKTK), Partner Site Munich, 80336 Munich, Germany;
| | - Florian Schöberl
- Department of Neurology, Ludwig-Maximilians-University School of Medicine, 81377 Munich, Germany;
| | - Esther Fitzinger
- Department of Neurosurgery, Division of Neuro-Oncology, Ludwig Maximilians University School of Medicine, Marchioninistrasse, 1581377 Munich, Germany; (J.B.); (N.T.); (E.F.); (J.-C.T.); (N.T.)
| | - Martin Dreyling
- Department of Medicine, Hematology & Oncology Division and Cellular Immunotherapy Program, Ludwig-Maximilians-University School of Medicine, 81377 Munich, Germany;
| | - Joerg-Christian Tonn
- Department of Neurosurgery, Division of Neuro-Oncology, Ludwig Maximilians University School of Medicine, Marchioninistrasse, 1581377 Munich, Germany; (J.B.); (N.T.); (E.F.); (J.-C.T.); (N.T.)
- German Cancer Consortium (DKTK), Partner Site Munich, 80336 Munich, Germany;
| | - Niklas Thon
- Department of Neurosurgery, Division of Neuro-Oncology, Ludwig Maximilians University School of Medicine, Marchioninistrasse, 1581377 Munich, Germany; (J.B.); (N.T.); (E.F.); (J.-C.T.); (N.T.)
- German Cancer Consortium (DKTK), Partner Site Munich, 80336 Munich, Germany;
| | - Marion Subklewe
- German Cancer Consortium (DKTK), Partner Site Munich, 80336 Munich, Germany;
- Department of Medicine, Hematology & Oncology Division and Cellular Immunotherapy Program, Ludwig-Maximilians-University School of Medicine, 81377 Munich, Germany;
- Gene Center of the LMU Munich, Laboratory for Translational Cancer Immunology, 81377 Munich, Germany
| | - Louisa von Baumgarten
- Department of Neurosurgery, Division of Neuro-Oncology, Ludwig Maximilians University School of Medicine, Marchioninistrasse, 1581377 Munich, Germany; (J.B.); (N.T.); (E.F.); (J.-C.T.); (N.T.)
- German Cancer Consortium (DKTK), Partner Site Munich, 80336 Munich, Germany;
- Department of Neurology, Ludwig-Maximilians-University School of Medicine, 81377 Munich, Germany;
- Correspondence: (P.K.); (L.v.B.); Tel.: +49-(0)89-4400-711365 (P.K.); +49-(0)89-4400-712363 (L.v.B.)
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Dimou M, Papageorgiou SG, Stavroyianni N, Katodritou E, Tsirogianni M, Kalpadakis C, Banti A, Arapaki M, Iliakis T, Bouzani M, Verrou E, Spanoudakis E, Giannouli S, Marinakis T, Mandala E, Mparmparousi D, Sachanas S, Dalekou-Tsolakou M, Hatzimichael E, Vadikolia C, Violaki V, Poziopoulos C, Tsirkinidis P, Chatzileontiadou S, Vervessou E, Ximeri M, Sioni A, Konstantinidou P, Kyrtsonis MC, Siakantaris MP, Angelopoulou MK, Pappa V, Konstantopoulos K, Panayiotidis P, Vassilakopoulos TP. Real-life experience with the combination of polatuzumab vedotin, rituximab, and bendamustine in aggressive B-cell lymphomas. Hematol Oncol 2021; 39:336-348. [PMID: 33583077 DOI: 10.1002/hon.2842] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/04/2021] [Accepted: 02/05/2021] [Indexed: 12/13/2022]
Abstract
Transplant-ineligible relapsed/refractory (rr) diffuse large B-cell lymphoma (DLBCL) patients represent an unmet medical need. Polatuzumab vedotin (Pola), an anti-CD79b antibody-drug-conjugate (ADG), with bendamustine- rituximab(BR) has recently gained approval for these patients, both in the USA and Europe, based on the GO29365 phase IIb trial. Real-life data with Pola are extremely limited. We report the outcomes of 61 Greek patients, who received Pola-(B)R mainly within a compassionate use program. Treatment was given for up to six 21-day cycles. Bendamustine was omitted in three cases due to previous short-lived responses. Fourty-nine rrDLBCL(efficacy cohort-EC) and 58 rr aggressive B-NHL (safety cohort-SC) patients received at least 1 Pola-BR cycle. Twenty-one (43%) patients of the EC responded with 12/49 (25%) CR and 9/49 (18%) PR as best response. Median progression-free survival, overall survival and duration of response were 4.0, 8.5, and 8.5 months respectively, while 55% of patients experienced a grade ≥3 adverse event, mainly hematologic. Treatment discontinuations and death during treatment were mainly due to disease progression. Twenty-two (41%) patients received further treatment; 11/22 are still alive, including one after CAR-T cells, and two after stem cell transplantation. Our data confirm that Pola-BR is a promising treatment for rrDLBCL patients, inducing an adequate response rate with acceptable toxicity. Pola-BR could be used as bridging therapy before further consolidative treatments.
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Affiliation(s)
- Maria Dimou
- First Department of Internal Medicine, Propaedeutic, Haematology Clinical Trial Unit, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Sotirios G Papageorgiou
- Second Department of Internal Medicine, Propaedeutic, Hematology Unit, University General Hospital "Attikon", National and Kapodistrian University of Athens, Athens, Greece
| | - Niki Stavroyianni
- Department of Hematology, Papanikolaou Hospital, Thessaloniki, Greece
| | - Eirini Katodritou
- Department of Hematology, Theagenion Cancer Hospital, Thessaloniki, Greece
| | - Maria Tsirogianni
- Department of Hematology, Aghios Savvas Anticancer Hospital, Athens, Greece
| | | | - Anastasia Banti
- Hematology Department, Papageorgiou Hospital, Thessaloniki, Greece
| | - Maria Arapaki
- Department of Haematology and Bone Marrow Transplantation, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Theodoros Iliakis
- First Department of Internal Medicine, Propaedeutic, Haematology Clinical Trial Unit, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Maria Bouzani
- Department of Hematology and Lymphoma, Evangelismos General Hospital, Athens, Greece
| | - Eugenia Verrou
- Department of Hematology, Theagenion Cancer Hospital, Thessaloniki, Greece
| | | | - Stavroula Giannouli
- Second Department of Internal Medicine, Ippokrateion General Hospital, Athens, Greece
| | - Theodoros Marinakis
- Department of Clinical Hematology, "G. Gennimatas" General Hospital, Athens, Greece
| | - Evdokia Mandala
- Forth Department of Medicine, Faculty of Medicine, Aristotle University of Thessaloniki, Hippokration Hospital, Thessaloniki, Greece
| | - Despoina Mparmparousi
- Department of Therapeutics, National and Kapodistrian University of Athens, Alexandra Hospital, Athens, Greece
| | | | | | - Eleftheria Hatzimichael
- Department of Hematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | | | - Vasiliki Violaki
- Department of Hematology, Chania General Hospital, Chania, Greece
| | | | | | - Sofia Chatzileontiadou
- Hematology Unit, 1st Department of Internal Medicine, Aristotle University of Thessaloniki, AHEPA Hospital, Thessaloniki, Greece
| | | | - Maria Ximeri
- Department of Hematology, University of Crete, Iraklion, Crete, Greece
| | - Anastasia Sioni
- Department of Hematology, Aghios Savvas Anticancer Hospital, Athens, Greece
| | | | - Marie-Christine Kyrtsonis
- First Department of Internal Medicine, Propaedeutic, Haematology Clinical Trial Unit, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Marina P Siakantaris
- Department of Haematology and Bone Marrow Transplantation, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Maria K Angelopoulou
- Department of Haematology and Bone Marrow Transplantation, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Vassiliki Pappa
- Second Department of Internal Medicine, Propaedeutic, Hematology Unit, University General Hospital "Attikon", National and Kapodistrian University of Athens, Athens, Greece
| | - Kostas Konstantopoulos
- Department of Haematology and Bone Marrow Transplantation, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Panayiotis Panayiotidis
- First Department of Internal Medicine, Propaedeutic, Haematology Clinical Trial Unit, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Theodoros P Vassilakopoulos
- Department of Haematology and Bone Marrow Transplantation, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
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Jiang J, Ahuja S. Addressing Patient to Patient Variability for Autologous CAR T Therapies. J Pharm Sci 2021; 110:1871-1876. [PMID: 33340532 DOI: 10.1016/j.xphs.2020.12.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/10/2020] [Accepted: 12/14/2020] [Indexed: 12/11/2022]
Abstract
Chimeric Antigen Receptor (CAR) T cell therapy clinical trials have had unprecedented success in the endeavors to cure cancer patients, particularly those having hematological cancers. As researchers learn more about the ways to make CAR T cells more effective to kill tumor cells, equally important will be understanding the differences between T cells from healthy donors and cancer patients and how these differences could affect ex vivo expansion of T cells during CAR T production. This undoubtedly could be a crucial factor in treating solid tumors, where CAR T cells are needed in significantly higher numbers. As the evidence for significant differences between the patients and healthy donors is compelling, an adaptable and robust production process should be designed to allow manufacture of the required CAR T cells for all cancer patients. Improving the fundamental understanding of the cellular metabolism and accompanying epigenetic and phenotypic changes during in vivo and ex vivo expansion of T cells will be just as important. Such discoveries will provide an invaluable tool box from which actionable knowledge could be drawn for designing an adaptable CAR T production process that is able to absorb the patient-to-patient variation.
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Affiliation(s)
- Jinlin Jiang
- Cell Culture and Fermentation Sciences, BioPharmaceutical Development, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD
| | - Sanjeev Ahuja
- Cell Culture and Fermentation Sciences, BioPharmaceutical Development, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD.
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Münz C. Redirecting T Cells against Epstein-Barr Virus Infection and Associated Oncogenesis. Cells 2020; 9:cells9061400. [PMID: 32512847 PMCID: PMC7349826 DOI: 10.3390/cells9061400] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/29/2020] [Accepted: 06/03/2020] [Indexed: 12/20/2022] Open
Abstract
The Epstein-Barr virus (EBV) is associated with lymphomas and carcinomas. For some of these, the adoptive transfer of EBV specific T cells has been therapeutically explored, with clinical success. In order to avoid naturally occurring EBV specific autologous T cell selection from every patient, the transgenic expression of latent and early lytic viral antigen specific T cell receptors (TCRs) to redirect T cells, to target the respective tumors, is being developed. Recent evidence suggests that not only TCRs against transforming latent EBV antigens, but also against early lytic viral gene products, might be protective for the control of EBV infection and associated oncogenesis. At the same time, these approaches might be more selective and cause less collateral damage than targeting general B cell markers with chimeric antigen receptors (CARs). Thus, EBV specific TCR transgenic T cells constitute a promising therapeutic strategy against EBV associated malignancies.
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Affiliation(s)
- Christian Münz
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, 8057 Zürich, Switzerland
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