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Yin Z, Mander AP, de Bono JS, Zheng H, Yap C. Handling Incomplete or Late-Onset Toxicities in Early-Phase Dose-Finding Clinical Trials: Current Practice and Future Prospects. JCO Precis Oncol 2024; 8:e2300441. [PMID: 38181316 DOI: 10.1200/po.23.00441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/28/2023] [Accepted: 10/12/2023] [Indexed: 01/07/2024] Open
Abstract
PURPOSE The way late-onset toxicities are managed can affect trial outcomes and participant safety. Specifically, participants often might not have completed their entire follow-up period to observe any toxicities before new participants would be recruited. We conducted a methodological review of published early-phase dose-finding clinical trials that used designs accounting for partial and complete toxicity information, aiming to understand (1) how such designs were implemented and reported and (2) if sufficient information was provided to enable the replicability of trial results. METHODS Until March 26, 2023, we identified 141 trials using the rolling 6 design, the time-to-event continuous reassessment method (TITE-CRM), the TITE-CRM with cycle information, the TITE Bayesian optimal interval design, the TITE cumulative cohort design, and the rapid enrollment design. Clinical settings, design parameters, practical considerations, and dose-limiting toxicity (DLT) information were extracted from these published trials. RESULTS The TITE-CRM (61, 43.3%) and the rolling 6 design (76, 53.9%) were most frequently implemented in practice. Trials using the TITE-CRM had longer DLT assessment windows beyond the first cycle compared with the rolling 6 design (52.5% v 6.6%). Most trials implementing the TITE-CRM (91.8%, 56 of 61) failed to describe essential parameters in the protocols or the study result papers. Only five TITE-CRM trials (8.2%, 5 of 61) reported sufficient information to enable replication of the final analysis. CONCLUSION When compared with trials using the rolling 6 design, those implementing the TITE-CRM design exhibited notable deficiencies in reporting essential details necessary for reproducibility. Inadequate reporting quality of advanced model-based trial designs hinders their credibility. We provide recommendations that can improve transparency, reproducibility, and accurate interpretation of the results for such designs.
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Affiliation(s)
- Zhulin Yin
- Clinical Trials and Statistics Unit, Institute of Cancer Research, London, United Kingdom
| | - Adrian P Mander
- Centre for Trials Research, Cardiff University, Cardiff, United Kingdom
| | - Johann S de Bono
- Drug Development Unit, The Institute of Cancer Research and the Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Haiyan Zheng
- Department of Mathematical Sciences, University of Bath, Bath, United Kingdom
| | - Christina Yap
- Clinical Trials and Statistics Unit, Institute of Cancer Research, London, United Kingdom
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2
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Maffini E, Ursi M, Barbato F, Dicataldo M, Roberto M, Campanini E, Dan E, De Felice F, De Matteis S, Storci G, Bonafè M, Arpinati M, Bonifazi F. The prevention of disease relapse after allogeneic hematopoietic cell transplantation in acute myeloid leukemia. Front Oncol 2022; 12:1066285. [DOI: 10.3389/fonc.2022.1066285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 11/11/2022] [Indexed: 12/02/2022] Open
Abstract
Disease relapse represents by far the most frequent cause of hematopoietic cell transplantation (HCT) failure. Patients with acute leukemia suffering relapse after HCT have limited conventional treatment options with little possibility of cure and represent, de facto, suitable candidates for the evaluation of novel cellular and biological-based therapies. Donor lymphocyte infusions (DLI) has been one of the first cellular therapies adopted to treat post HCT relapse of acute leukemia patients and still now, it is widely adopted in preemptive and prophylactic settings, with renewed interest for manipulated cellular products such as NK-DLI. The acquisition of novel biological insights into pathobiology of leukemia relapse are translating into the clinic, with novel combinations of target therapies and novel agents, helping delineate new therapeutical landscapes. Hypomethylating agents alone or in combination with novel drugs demonstrated their efficacy in pre-clinical models and controlled trials. FLT3 inhibitors represent an essential therapeutical instrument incorporated in post-transplant maintenance strategies. The Holy grail of allogeneic transplantation lies in the separation of graft-vs.-host disease from graft vs. tumor effects and after more than five decades, is still the most ambitious goal to reach and many ways to accomplish are on their way.
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3
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Ye Y, Yang L, Yuan X, Huang H, Luo Y. Optimization of Donor Lymphocyte Infusion for AML Relapse After Allo-HCT in the Era of New Drugs and Cell Engineering. Front Oncol 2022; 11:790299. [PMID: 35155192 PMCID: PMC8829143 DOI: 10.3389/fonc.2021.790299] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/28/2021] [Indexed: 12/19/2022] Open
Abstract
Donor lymphocyte infusion (DLI) is a key strategy for the treatment of AML relapse after allogeneic hematopoietic cell transplantation (allo-HCT) and has been used for either prophylactic, pre-emptive, or therapeutic purposes. However, the prognosis of these patients remains dismal even after DLI infusion (2-year overall survival, ~25%), and the efficacy is achieved at the cost of toxicities such as graft-versus-host (GVH) disease. Attempts to optimize DLI efficacy and safety, such as dose/timing modification and the use of cytoreduction, before DLI have been performed previously. Recently, a great number of novel targeted and immunomodulatory agents have emerged. Some of them, such as hypomethylating agents, FLT3 and Bcl-2 inhibitors, have been used in combination with DLI, aiming to enhance the graft-versus-leukemia effect. Moreover, manipulation of the DLI graft through cell selection (e.g., donor NK cells) or cell engineering (donor CAR-T cells) has shown potentially superior anti-tumor effects but less GVH effect than conventional DLI in clinical trials. This review summarizes the recent advances on the use of DLI for the prophylaxis/treatment of AML relapse and discusses future strategies which may further improve the treatment efficacy.
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Affiliation(s)
- Yishan Ye
- First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - Luxin Yang
- First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - Xiaolin Yuan
- First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - He Huang
- First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - Yi Luo
- First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
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4
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Takahashi T, Prockop SE. T-cell depleted haploidentical hematopoietic cell transplantation for pediatric malignancy. Front Pediatr 2022; 10:987220. [PMID: 36313879 PMCID: PMC9614427 DOI: 10.3389/fped.2022.987220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Access to allogenic hematopoietic cell transplantation (HCT), a potentially curative treatment for chemotherapy-resistant hematologic malignancies, can be limited if no human leukocyte antigen (HLA) identical related or unrelated donor is available. Alternative donors include Cord Blood as well as HLA-mismatched unrelated or related donors. If the goal is to minimize the number of HLA disparities, partially matched unrelated donors are more likely to share 8 or 9 of 10 HLA alleles with the recipient. However, over the last decade, there has been success with haploidentical HCT performed using the stem cells from HLA half-matched related donors. As the majority of patients have at least one eligible and motivated haploidentical donor, recruitment of haploidentical related donors is frequently more rapid than of unrelated donors. This advantage in the accessibility has historically been offset by the increased risks of graft rejection, graft-versus-host disease and delayed immune reconstitution. Various ex vivo T-cell depletion (TCD) methods have been investigated to overcome the immunological barrier and facilitate immune reconstitution after a haploidentical HCT. This review summarizes historical and contemporary clinical trials of haploidentical TCD-HCT, mainly in pediatric malignancy, and describes the evolution of these approaches with a focus on serial improvements in the kinetics of immune reconstitution. Methods of TCD discussed include in vivo as well as ex vivo positive and negative selection. In addition, haploidentical TCD as a platform for post-HCT cellular therapies is discussed. The present review highlights that, as a result of the remarkable progress over half a century, haploidentical TCD-HCT can now be considered as a preferred alternative donor option for children with hematological malignancy in need of allogeneic HCT.
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Affiliation(s)
- Takuto Takahashi
- Pediatric Stem Cell Transplantation, Boston Children's Hospital/Dana-Farber Cancer Institute, Boston, MA, United States.,Department of Experimental and Clinical Pharmacology, University of Minnesota College of Pharmacy, Minneapolis, MN, United States
| | - Susan E Prockop
- Pediatric Stem Cell Transplantation, Boston Children's Hospital/Dana-Farber Cancer Institute, Boston, MA, United States
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5
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Yang L, Tan Y, Shi J, Zhao Y, Yu J, Hu Y, Lai X, Yang Y, Huang H, Luo Y. Prophylactic modified donor lymphocyte infusion after low-dose ATG-F-based haploidentical HSCT with myeloablative conditioning in high-risk acute leukemia: a matched-pair analysis. Bone Marrow Transplant 2020; 56:664-672. [PMID: 33077902 DOI: 10.1038/s41409-020-01088-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 10/07/2020] [Indexed: 12/31/2022]
Abstract
Both haploidentical hematopoietic stem cell transplantation (HSCT) and donor lymphocyte infusion (DLI) exhibit strong graft-versus-leukemia (GVL) effect. However, the role of prophylactic DLI following haploidentical HSCT remains unclear. Here, 34 patients with high-risk acute leukemia who underwent low-dose anti-T-lymphocyte globulin-Fresenius (ATG-F)-based myeloablative haploidentical HSCT and prophylactic modified DLI (pro-DLI) were well-matched with patients without pro-DLI. The 5-year overall survival (OS) (67.8% versus 41.3%, P < 0.01) and leukemia-free survival (LFS) (64.6% versus 33.9%, P < 0.01) of pro-DLI cohort were superior to the control cohort. A slightly higher GVHD-free/relapse-free survival was found in the pro-DLI cohort (32.8% versus 16.3%, P = 0.32). The 5-year cumulative incidence of relapse of the pro-DLI recipients was significantly lower than that of the control cohort (14.7% versus 49.3%, P = 0.01). The cumulative incidence of grades II-IV and III-IV acute GVHD at 100 days after pro-DLI was 17.6% and 9.1%, respectively. There was no difference between the two cohorts in terms of the cumulative incidence of chronic GVHD and non-relapse mortality. Data from the multivariate analysis demonstrated that pro-DLI was an independent protective variable for LFS (P = 0.01, hazard ratio {HR} = 0.35), OS (P = 0.01, HR = 0.32), and relapse (P = 0.02, HR = 0.33). Taken together, we demonstrate that pro-DLI after ATG-F-based HSCT effectively decreases the risk of relapse and improves long-term survival of patients with high-risk acute leukemia without increasing treatment toxicity.
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Affiliation(s)
- Luxin Yang
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - Yamin Tan
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - Jimin Shi
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - Yanmin Zhao
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - Jian Yu
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - Yongxian Hu
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - Xiaoyu Lai
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - Yang Yang
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - He Huang
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China. .,Institute of Hematology, Zhejiang University, Hangzhou, China.
| | - Yi Luo
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China. .,Institute of Hematology, Zhejiang University, Hangzhou, China.
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6
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Vergallo C. Infusion of HLA-matched and static magnetic field-exposed allogenic lymphocytes treating lymphocytopenia and cytokine storm syndrome: A treatment proposal for COVID-19 patients. Electromagn Biol Med 2020; 40:11-25. [PMID: 33073612 DOI: 10.1080/15368378.2020.1830290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Among haematological parameters of patients seriously ill with the coronavirus infectious disease 2019 (COVID-19), leucocytosis, lymphocytopenia, and the abnormal release of circulating cytokines, termed cytokine storm syndrome (CSS, also known as cytokine release syndrome or CRS), were found associated with disease severity. In particular, according to the serum cytokine profiling, pro-inflammatory interleukin 6 (IL-6) and anti-inflammatory interleukin 10 (IL-10) were observed to be considerably higher in patients experiencing respiratory distress, septic shock and/or multi-organ failure, namely "critical cases" requiring intensive care unit (ICU) admission, very often resulting in death. Interestingly, the production of these cytokines from human lymphocytes was found to be modulated by exposure of 24 h to a 554.2-553.8 mT inhomogeneous static magnetic field (SMF), which elicits IL-10 and suppresses IL-6. Thus, herein, with the aim of restoring lymphocyte count and physiological serum levels of IL-6 and IL-10, the infusion of human leukocyte antigen (HLA)-matched and SMF-exposed allogenic lymphocytes is proposed for the first time as an easy and affordable treatment option for COVID-19 patients. Even if the count of lymphocytes in COVID-19 patients is very low, SMF exposure may be a valuable tool for reprogramming autologous lymphocytes towards physiological conditions. Furthermore, the same procedure could be extended to include the whole autologous or allogenic white blood cells (WBCs). Time-varying/pulsed magnetic fields exerting comparable cell effects could also be employed.
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Affiliation(s)
- Cristian Vergallo
- Department of Pharmacy, University of Chieti-Pescara "G. d'Annunzio" , Chieti, Italy
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Dholaria B, Savani BN, Labopin M, Luznik L, Ruggeri A, Mielke S, Al Malki MM, Kongtim P, Fuchs E, Huang XJ, Locatelli F, Aversa F, Castagna L, Bacigalupo A, Martelli M, Blaise D, Ben Soussan P, Arnault Y, Handgretinger R, Roy DC, O'Donnell P, Bashey A, Solomon S, Romee R, Lewalle P, Gayoso J, Maschan M, Lazarus HM, Ballen K, Giebel S, Baron F, Ciceri F, Esteve J, Gorin NC, Spyridonidis A, Schmid C, Ciurea SO, Nagler A, Mohty M. Clinical applications of donor lymphocyte infusion from an HLA-haploidentical donor: consensus recommendations from the Acute Leukemia Working Party of the EBMT. Haematologica 2020; 105:47-58. [PMID: 31537691 PMCID: PMC6939532 DOI: 10.3324/haematol.2019.219790] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Accepted: 09/19/2019] [Indexed: 01/30/2023] Open
Abstract
Donor lymphocyte infusion has been used in the management of relapsed hematologic malignancies after allogeneic hematopoietic cell transplantation. It can eradicate minimal residual disease or be used to rescue a hematologic relapse, being able to induce durable remissions in a subset of patients. With the increased use of haploidentical hematopoietic cell transplantation, there is renewed interest in the use of donor lymphocytes to either treat or prevent disease relapse post transplant. Published retrospective and small prospective studies have shown encouraging results with therapeutic donor lymphocyte infusion in different haploidentical transplantation platforms. In this consensus paper, finalized on behalf of the Acute Leukemia Working Party of the European Society for Blood and Marrow Transplantation, we summarize the available evidence on the use of donor lymphocyte infusion from haploidentical donor, and provide recommendations on its therapeutic, pre-emptive and prophylactic use in clinical practice.
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Affiliation(s)
- Bhagirathbhai Dholaria
- Department of Hematology-Oncology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Bipin N Savani
- Department of Hematology-Oncology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Myriam Labopin
- Department of Haematology and EBMT Paris study office / CEREST-TC, Saint Antoine Hospital, Paris, France
| | - Leo Luznik
- Department of Oncology Hematologic Malignancies, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Annalisa Ruggeri
- Department of Pediatric Hematology/Oncology and Cell and Gene Therapy, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Stephan Mielke
- Department of Laboratory Medicine, CAST, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - Monzr M Al Malki
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA, USA
| | - Piyanuch Kongtim
- Stem Cell Transplant and Cellular Therapy, Thammasat University, Pathumthani, Thailand
| | - Ephraim Fuchs
- Johns Hopkins University, Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD, USA
| | - Xiao-Jun Huang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing China
| | - Franco Locatelli
- Department of Pediatric Hematology/Oncology, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Sapienza, University of Rome, Italy
| | - Franco Aversa
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | | | - Andrea Bacigalupo
- Fondazione Policlinico Universitario Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | | | - Didier Blaise
- Department of Hematology, Institut Paoli Calmettes, Marseille France
| | - Patrick Ben Soussan
- Department of Clinical Psychology, Paoli-Calmettes Institute, Marseille, France
| | - Yolande Arnault
- Institut Paoli-Calmette, département de psychologie clinique, Marseille, France
| | - Rupert Handgretinger
- Department of Hematology and Oncology, University Children's Hospital Tübingen, Tübingen Germany
| | - Denis-Claude Roy
- Division of Hematology and Medical Oncology, Hospital Maisonneuve-Rosemont, Montreal, QC, Canada
| | - Paul O'Donnell
- Hematology-Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Asad Bashey
- Blood and Marrow Transplant Program at Northside Hospital, Atlanta, GA, USA
| | - Scott Solomon
- Blood and Marrow Transplant Program at Northside Hospital, Atlanta, GA, USA
| | - Rizwan Romee
- Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Philippe Lewalle
- Hematology Department, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Jorge Gayoso
- HGU Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Michael Maschan
- Oncology and immunology, Dmitriy Rogachev National Medical Center of pediatric hematology, Moscow, Russia
| | - Hillard M Lazarus
- Adult Hematologic Malignancies & Stem Cell Transplant Section, University Hospitals Seidman Cancer Center, Cleveland, OH, USA
| | - Karen Ballen
- Division of hematology/oncology, University of Virginia Health System, Charlottesville, VA, USA
| | - Sebastian Giebel
- Dept. of Bone Marrow Transplantation and Onco-Hematology, Maria Sklodowska-Curie Institute - Oncology Center, Gliwice Branch, Gliwice, Poland
| | - Frederic Baron
- Laboratory of Hematology, University of Liège, Liège, Belgium
| | - Fabio Ciceri
- Hematology and Bone Marrow Transplantation Unit, San Raffaele Scientific Institute, Milano Italy
| | - Jordi Esteve
- Hematology department, Hospital Clínic de Barcelona, Barcelona Spain
| | - Norbert-Claude Gorin
- Service d'hématologie et thérapie cellulaire Centre international greffes APHP-EBMT-INCa Hospital, Saint Antoine Hospital, Paris France
| | - Alexandros Spyridonidis
- Bone Marrow Transplantation Unit and CBMDP Donor Center, University Hospital of Patras, Patras, Greece
| | - Christoph Schmid
- Department of Hematology and Oncology, Klinikum Augsburg, Augsburg, Germany
| | - Stefan O Ciurea
- Stem Cell Transplant and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Arnon Nagler
- Chaim Sheba Medical Center, Tel Aviv University, Tel-Hashomer, Israel and EBMT ALWP office, Saint Antoine Hospital, Paris, France
| | - Mohamad Mohty
- Service d'Hématologie Clinique et Thérapie Cellulaire, Hôpital Saint-Antoine, AP-HP, Sorobonne University, and INSERM UMRs 938, Paris, France
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8
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Zhang P, Tey SK. Adoptive T Cell Therapy Following Haploidentical Hematopoietic Stem Cell Transplantation. Front Immunol 2019; 10:1854. [PMID: 31447852 PMCID: PMC6691120 DOI: 10.3389/fimmu.2019.01854] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 07/23/2019] [Indexed: 12/24/2022] Open
Abstract
Delayed immune reconstitution and the consequently high rates of leukemia relapse and infectious complications are the main limitations of haploidentical hematopoietic stem cell transplantation. Donor T cell addback can accelerate immune reconstitution but the therapeutic window between graft-vs.-host disease and protective immunity is very narrow in the haploidentical transplant setting. Hence, strategies to improve the safety and efficacy of adoptive T cell transfer are particularly relevant in this setting. Adoptive T cell transfer strategies in haploidentical transplantation include the use of antigen-specific T cells, allodepletion and alloanergy induction, immune modulation by the co-infusion of regulatory cell populations, and the use of safety switch gene-modified T cells. Whilst common principles apply, there are features that are unique to haploidentical transplantation, where HLA-mismatching directly impacts on immune reconstitution, and shared vs. non-shared HLA-allele can be an important consideration in antigen-specific T cell therapy. This review will also present an update on safety switch gene-modified T cells, which can be conditionally deleted in the event of severe graft- vs.-host disease or other adverse events. Herpes Virus Simplex Thymidine Kinase (HSVtk) and inducible caspase-9 (iCasp9) are safety switches that have undergone multicenter studies in haploidentical transplantation with encouraging results. These gene-modified cells, which are trackable long-term, have also provided important insights on the fate of adoptively transferred T cells. In this review, we will discuss the biology of post-transplant T cell immune reconstitution and the impact of HLA-mismatching, and the different cellular therapy strategies that can help accelerate T cell immune reconstitution after haploidentical transplantation.
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Affiliation(s)
- Ping Zhang
- Clinical Translational Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, QLD, Australia
| | - Siok-Keen Tey
- Clinical Translational Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, QLD, Australia.,Department of Haematology and Bone Marrow Transplantation, Royal Brisbane and Women's Hospital, Herston, QLD, Australia.,Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
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9
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Ma H, Padmanabhan Iyer S, Parmar S, Gong Y. Adoptive cell therapy for acute myeloid leukemia. Leuk Lymphoma 2019; 60:1370-1380. [PMID: 30628504 DOI: 10.1080/10428194.2018.1553300] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Hongbing Ma
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | | | - Simrit Parmar
- Department of Lymphoma & Myeloma, MD Anderson Cancer Center, Texas University, Houston, TX, USA
| | - Yuping Gong
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
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