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Shaffer BC, Gooptu M, DeFor TE, Maiers M, Bolaños-Meade J, Abboud R, Briggs AD, Khimani F, Modi D, Newcomb R, Shpall EJ, Bupp C, Spellman SR, Stefanski HE, Shaw BE, Auletta JJ, Devine SM, Jimenez Jimenez AM, Al Malki MM. Post-Transplant Cyclophosphamide-Based Graft-Versus-Host Disease Prophylaxis Attenuates Disparity in Outcomes Between Use of Matched or Mismatched Unrelated Donors. J Clin Oncol 2024:JCO2400184. [PMID: 39018507 DOI: 10.1200/jco.24.00184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/02/2024] [Accepted: 05/07/2024] [Indexed: 07/19/2024] Open
Abstract
PURPOSE Access to allogeneic hematopoietic cell transplantation (HCT) remains limited among persons of non-European ancestry if human leukocyte antigen (HLA) matching is required. We evaluated whether post-transplant cyclophosphamide (PTCy)-based graft-versus-host disease (GVHD) prophylaxis improved HCT outcomes with HLA-matched unrelated donor (MUD) and mismatched unrelated donor (MMUD) HCT when compared with calcineurin inhibitor (CNI)-based prophylaxis. METHODS Three-year overall survival (OS) and GVHD-free, relapse-free survival (GRFS) were compared between adult recipients undergoing initial MUD or single HLA locus MMUD HCT with either PTCy- or CNI-based prophylaxis who were reported to the Center for International Blood and Marrow Transplant Research between 2017 and 2021. RESULTS Included were 10,025 HCT recipients (7,272 recipients of MUD with CNI, 1,681 MUD with PTCy, 613 MMUD with CNI, and 459 MMUD with PTCy) who underwent HCT for acute leukemia (70.9%) or myelodysplastic syndromes (29.2%). Median patient age was 60.7 years (range, 18.0-82.7) and median follow-up was 36.6 (range, 3.0-77.8) months. When compared with MUD HCT with PTCy, MMUD HCT with PTCy had similar OS (hazard ratio [HR], 0.96 [95% CI, 0.823 to 1.11]; P = .60) and GRFS (HR, 0.90 [0.79 to 1.02]; P = .1). When compared with MUD HCT with CNI, OS was improved after MUD HCT with PTCy (HR, 0.88 [0.80 to 0.96]; P = .004) and GRFS was improved with PTCy after either MUD (HR, 0.61 [0.57 to 0.66]; P < .0001) or MMUD (HR, 0.68 [0.60 to 0.76]; P < .0001) HCT. Benefit from PTCy was independent of patient ancestry. Global registry level analysis demonstrated that inclusion of MMUD increased donor availability regardless of recipient ancestry. CONCLUSION Use of PTCy results in comparable OS and GRFS using either MUD or MMUD HCT, expanding access to HCT for patients from all racial and ethnic ancestry groups.
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Affiliation(s)
- Brian C Shaffer
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Mahasweta Gooptu
- Department of Hematology/Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Todd E DeFor
- CIBMTR (Center for International Blood and Marrow Transplant Research), NMDP, Minneapolis, MN
| | - Martin Maiers
- CIBMTR (Center for International Blood and Marrow Transplant Research), NMDP, Minneapolis, MN
| | | | - Ramzi Abboud
- Washington University School of Medicine, St Louis, MO
| | | | - Farhad Khimani
- Department of Blood and Marrow Transplantation and Cellular Immunotherapy, Moffitt Cancer Center, Tampa, FL
| | - Dipenkumar Modi
- Barbara Ann Karmanos Cancer Institute, Wayne State University, Detroit, MI
| | | | - Elizabeth J Shpall
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Caitrin Bupp
- CIBMTR (Center for International Blood and Marrow Transplant Research), NMDP, Minneapolis, MN
| | - Stephen R Spellman
- CIBMTR (Center for International Blood and Marrow Transplant Research), NMDP, Minneapolis, MN
| | - Heather E Stefanski
- CIBMTR (Center for International Blood and Marrow Transplant Research), NMDP, Minneapolis, MN
| | - Bronwen E Shaw
- CIBMTR (Center for International Blood and Marrow Transplant Research), Department of Medicine, Medical College of Wisconsin, Milwaukee, WI
| | - Jeffery J Auletta
- CIBMTR (Center for International Blood and Marrow Transplant Research), NMDP, Minneapolis, MN
- Hematology/Oncology/BMT and Infectious Diseases, Nationwide Children's Hospital, Columbus, OH
| | - Steven M Devine
- CIBMTR (Center for International Blood and Marrow Transplant Research), NMDP, Minneapolis, MN
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2
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Barriga F, Lima ACM. Donor selection in allogeneic stem cell transplantation. Curr Opin Hematol 2024:00062752-990000000-00080. [PMID: 39046889 DOI: 10.1097/moh.0000000000000831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
PURPOSE OF THE REVIEW Recent progress in human leukocyte antigen (HLA) characterization, increased accrual of unrelated donors and cord blood units, and a new platform for haploidentical transplantation have resulted in the widespread availability of donors for allogeneic hematopoietic stem cell transplantation. RECENT FINDINGS Advances in HLA typing have identified an increasing number of loci and alleles that are crucial for successful transplantation. Newer HLA A, B, C, DRB1, and DQB1 alleles, DPB1 mismatches, and HLA B leader sequence matching are incorporated into donor selection algorithms. Donor selection is highly relevant because of recently published conflicting studies using different donor types. These studies are largely retrospective and compare patients with different diseases and stages, conditioning regimens, graft versus host disease (GVHD) prophylaxis, and time periods. A broad consensus indicates that the best donor is an available matched sibling, followed by a matched unrelated donor, and then alternative donors such as haploidentical, mismatched unrelated, and cord blood units. This consensus is being challenged by other factors, such as donor age, patient condition, urgency of transplantation, and costs involved. SUMMARY In this review, we will analyze the unique characteristics of each donor type, the HLA and non HLA factors that affect donor choices, and the outstanding comparative outcome studies of different donor usage in hematologic malignancies.
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Affiliation(s)
- Francisco Barriga
- Section of Hematology, Oncology and Stem Cell Transplantation, Pontificia Universidad Católica de Chile. Stem Cell Collection Center, Fundación de Beneficiencia Pública DKMS, Santiago, Chile
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3
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Mehta RS, Petersdorf EW, Wang T, Lee SJ. Haploidentical Versus Mismatched Unrelated Donor Hematopoietic Cell Transplantation: HLA Factors and Donor Age Considerations. Transplant Cell Ther 2024:S2666-6367(24)00528-1. [PMID: 38992469 DOI: 10.1016/j.jtct.2024.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 06/30/2024] [Accepted: 07/03/2024] [Indexed: 07/13/2024]
Abstract
HLA-mismatched unrelated donors and haploidentical related donors are suitable stem cell sources for hematopoietic cell transplantation (HCT) when patients lack HLA-matched donors. Clinical outcome after mismatched HCT is influenced by HLA factors including the similarity of peptide-binding motifs (PBMs) between the patient and unrelated donor, and of the HLA-B leader in unrelated and haploidentical donors. Whether these factors can aid in the selection between mismatched unrelated and haploidentical donors is not known. To address this question, we investigated outcomes between the two donor types defined by matching for the PBM and leader peptide. We compared PBM-matched (n = 614) and mismatched (n = 958) MMUDs with calcineurin-inhibitor-based prophylaxis to four haploidentical groups that received post-transplant cyclophosphamide (PTCy)-based prophylaxis. The haploidentical groups were B-leader matched/DRB1-mismatched (n = 722), B-leader matched/DRB1-matched (n = 154), B-leader mismatched/DRB1-mismatched (n = 493), and B-leader mismatched/DRB1-matched (n = 63). Multivariate analysis showed that the B-leader matched/DRB1-mismatched haploidentical group had the best overall survival (OS) compared to the PBM-matched MMUD, while other haploidentical groups had comparable OS. The PBM-mismatched MMUD showed the poorest outcomes, similar to the B-leader mismatched/DRB1-matched haploidentical group. Among non-HLA factors, donor age was the most significant predictor of OS. These results suggest that a B-leader matched/DRB1 mismatched haploidentical donor might be the preferred choice among donors of similar age. If such a donor is not available, the youngest donor from either PBM-matched unrelated or other haploidentical groups could be a beneficial choice. These findings need validation with both donor groups receiving PTCy-based graft-versus-host disease prophylaxis.
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Affiliation(s)
- Rohtesh S Mehta
- Fred Hutchinson Cancer Center, Seattle, Washington; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington.
| | - Effie W Petersdorf
- Fred Hutchinson Cancer Center, Seattle, Washington; Division of Translational Science and Therapeutics, Fred Hutchinson Cancer Center, Seattle, Washington
| | - Tao Wang
- CIBMTR (Center for International Blood and Marrow Transplant Research), NMDP, Minneapolis, Minnesota
| | - Stephanie J Lee
- Fred Hutchinson Cancer Center, Seattle, Washington; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington; CIBMTR (Center for International Blood and Marrow Transplant Research), NMDP, Minneapolis, Minnesota
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4
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Sanz J, Labopin M, Choi G, Kulagin A, Peccatori J, Vydra J, Reményi P, Versluis J, Rovira M, Blaise D, Labussière-Wallet H, Montoro J, Sica S, Meijer E, Itälä-Remes M, Schaap N, Bulabois CE, Piemontese S, Mohty M, Ciceri F. Younger unrelated donors may be preferable over HLA match in the PTCy era: a study from the ALWP of the EBMT. Blood 2024; 143:2534-2543. [PMID: 38657278 DOI: 10.1182/blood.2023023697] [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: 12/19/2023] [Revised: 02/22/2024] [Accepted: 03/02/2024] [Indexed: 04/26/2024] Open
Abstract
ABSTRACT There is a paucity of information on how to select the most appropriate unrelated donor (UD) in hematopoietic stem cell transplantation (HSCT) using posttransplant cyclophosphamide (PTCy). We retrospectively analyzed the characteristics of 10/10 matched UDs (MUDs) and 9/10 mismatched UDs (MMUDs) that may affect transplant outcomes in patients with acute myeloid leukemia (AML) in first or second complete remission (CR1 or CR2). The primary end point was leukemia-free survival (LFS). Overall, 1011 patients were included with a median age of 54 years (range, 18-77). Donors had a median age of 29 years (range, 18-64); 304 (30%) were females, of which 150 (15% of the whole group) were donors to male recipients, and 621 (61%) were MUDs; 522 (52%) had negative cytomegalovirus (CMV-neg) serostatus, of which 189 (19%) were used for CMV-neg recipients. Donor age older than 30 years had a negative impact on relapse (hazard ratio [HR], 1.38; 95% confidence interval [CI], 1.06-1.8), LFS (HR, 1.4; 95% CI, 1.12-1.74), overall survival (HR 1.45; 95% CI, 1.14-1.85) and graft-versus-host disease (GVHD) free, relapse-free survival (HR, 1.29; 95% CI, 1.07-1.56). In addition, CMV-neg donors for CMV-neg recipients were associated with improved LFS (HR, 0.74; 95% CI, 0.55-0.99). The use of MMUD and female donors for male recipients did not significantly impact any transplant outcomes. For patients undergoing HSCT from a UD with PTCy for AML, donor age <30 years significantly improves survival. In this context, donor age might be prioritized over HLA match considerations. In addition, CMV-neg donors are preferable for CMV-neg recipients. However, further research is needed to validate and refine these recommendations.
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Affiliation(s)
- Jaime Sanz
- Hematology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain; Department de Medicina de la Universitat de València; CIBERONC, Instituto Carlos III, Madrid, Spain
| | - Myriam Labopin
- EBMT Paris Office, Hospital Saint-Antoine, Paris, France
| | - Goda Choi
- University Medical Center Groningen, Groningen, The Netherlands
| | - Alexander Kulagin
- Raisa Memorial Gorbacheva Research Institute, Pavlov University, St. Petersburg, Russia
| | - Jacopo Peccatori
- Hematology and Bone Marrow Transplant Unit, San Raffaele Scientific Institute IRCCS, Milano, Italy
| | - Jan Vydra
- Institute of Hematology and Blood Transfusion-Prague, Prague, Czech Republic
| | | | | | - Montserrat Rovira
- BMT Unit, Department of Haematology, Institute of Haematology and Oncology, IDIBAPS, Hospital Clinic, Josep Carreras Leukaemia Research Foundation, University of Barcelona, Barcelona, Spain
| | - Didier Blaise
- Programme de Transplantation & Therapie Cellulaire-Marseille, Marseille, France
| | | | - Juan Montoro
- Hematology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain; Department de Medicina de la Universitat de València; CIBERONC, Instituto Carlos III, Madrid, Spain
| | - Simona Sica
- Universita Cattolica del Sacro Cuore, Rome, Italy
| | - Ellen Meijer
- VU University Medical Center, Amsterdam, The Netherlands
| | | | - Nicolaas Schaap
- Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Simona Piemontese
- Hematology and Bone Marrow Transplant Unit, San Raffaele Scientific Institute IRCCS, Milano, Italy
| | - Mohamad Mohty
- Hôpital Saint-Antoine, Sorbonne University, INSERM UMRs 938, Paris, France
| | - Fabio Ciceri
- Hematology and Bone Marrow Transplant Unit, San Raffaele Scientific Institute IRCCS, Milano, Italy
- Vita-Salute San Raffaele University, Milan, Italy
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5
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Fingrut WB, Davis E, Archer A, Brown S, Devlin S, Nhaissi M, Rapoport C, Chinapen S, Kelly A, Wells D, Scaradavou A, Gyurkocza B, Papadopoulos E, Politikos I, Shaffer BC, Barker JN. Racial/ethnic disparities in availability of volunteer unrelated donors for allogeneic transplantation. Blood Adv 2024; 8:2753-2764. [PMID: 38429097 PMCID: PMC11170144 DOI: 10.1182/bloodadvances.2023012385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/22/2024] [Accepted: 02/09/2024] [Indexed: 03/03/2024] Open
Abstract
ABSTRACT Despite the global unrelated donor (URD) registry size, the degree to which URD availability is a transplant barrier is not established. We evaluated the availability of 3,843 URDs requested for 455 diverse adult patients (predominantly with acute leukemia). URDs for non-Europeans were more likely to be domestic and had markedly lower Donor Readiness scores. Of URDs requested for confirmatory HLA-typing (CT) alone (ie, without simultaneous workup), 1,894 of 3,529 (54%) were available. Availability of domestic URDs was 45%. Donor Readiness score was highly predictive of CT availability. More non-European patients (n = 120) than Europeans (n = 335) had >10 URDs requested and <5 available. Of workup requests (after CT or CT-workup), <70% (604/889 [68%]) were available. More non-Europeans had <2 URDs available. URD availability for CT was markedly worse for non-Europeans, with availabilities for African, non-Black Hispanic, and Asian patients being 150/458 (33%), 120/258 (47%), and 119/270 (44%), respectively, with further decrements in URD workup availability. Our data suggest the functional size of the URD pool is much smaller than appreciated, mandating major operational changes for transplant centers and donor registries. Likelihood of donor availability should have a high priority in donor selection. Considering patient ancestry and URD Donor Readiness scores, centers should pursue, and registries permit, simultaneous pursuit of many URDs and abandon futile searches. Patients should be informed about their likelihood of donor availability and alternative options. Finally, although registries should address high URD attrition and speed procurement, use of all HLA-disparate graft types is needed to facilitate timely transplant for all.
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Affiliation(s)
- Warren B. Fingrut
- Department of Medicine, Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Eric Davis
- Department of Medicine, Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
- Department of Pediatrics, Pediatric Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Anne Archer
- Department of Medicine, Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
- Department of Pediatrics, Pediatric Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Samantha Brown
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Sean Devlin
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Melissa Nhaissi
- Department of Medicine, Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Candice Rapoport
- Department of Medicine, Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Stephanie Chinapen
- Department of Medicine, Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Amanda Kelly
- Department of Medicine, Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Deborah Wells
- Department of Medicine, Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Andromachi Scaradavou
- Department of Pediatrics, Pediatric Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Boglarka Gyurkocza
- Department of Medicine, Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
- Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Esperanza Papadopoulos
- Department of Medicine, Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
- Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Ioannis Politikos
- Department of Medicine, Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
- Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Brian C. Shaffer
- Department of Medicine, Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
- Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Juliet N. Barker
- Department of Medicine, Bone Marrow Transplant and Cellular Therapy Program, Weill Cornell Medicine, New York, NY
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6
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Mayor NP, Marsh SGE. HLA typing: A review of methodologies and clinical impact on haematopoietic cell transplantation. Best Pract Res Clin Haematol 2024; 37:101562. [PMID: 39098800 DOI: 10.1016/j.beha.2024.101562] [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: 02/07/2024] [Revised: 05/29/2024] [Accepted: 06/27/2024] [Indexed: 08/06/2024]
Abstract
The importance of the HLA gene system in haematopoietic cell transplant outcomes was established early on and advances in both fields have led to ever increasing success of this clinical therapy. In large part, improvements in the understanding of HLA have been driven by the advancement in typing technologies. Each iteration of typing technology has improved the resolution of HLA typing, and often enabled the identification of polymorphism within the HLA loci. The discovery of the enormous amount of variation in the HLA genes, and the need to be able to characterise this for clinical HLA typing, has often resulted in a move away from one typing method to another more suited to typing of this complexity. Today, the gold standard for HLA typing are methods that can produce definitive HLA typing results.
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Affiliation(s)
- Neema P Mayor
- Anthony Nolan Research Institute, Royal Free Hospital, London, UK; UCL Cancer Institute, Royal Free Campus, London, UK.
| | - Steven G E Marsh
- Anthony Nolan Research Institute, Royal Free Hospital, London, UK; UCL Cancer Institute, Royal Free Campus, London, UK
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7
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Fuchs KJ, Falkenburg JHF, Griffioen M. Minor histocompatibility antigens to predict, monitor or manipulate GvL and GvHD after allogeneic hematopoietic cell transplantation. Best Pract Res Clin Haematol 2024; 37:101555. [PMID: 39098803 DOI: 10.1016/j.beha.2024.101555] [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: 02/29/2024] [Revised: 04/22/2024] [Accepted: 05/08/2024] [Indexed: 08/06/2024]
Abstract
Allogeneic hematopoietic cell transplantation (alloHCT) provides a potential curative treatment for haematological malignancies. The therapeutic Graft-versus-Leukaemia (GvL) effect is induced by donor T cells attacking patient hematopoietic (malignant) cells. However, if healthy non-hematopoietic tissues are targeted, Graft-versus-Disease (GvHD) may develop. After HLA-matched alloHCT, GvL and GvHD are induced by donor T cells recognizing polymorphic peptides presented by HLA on patient cells, so-called minor histocompatibility antigens (MiHAs). The balance between GvL and GvHD depends on the tissue distribution of MiHAs and T-cell frequencies targeting these MiHAs. T cells against broadly expressed MiHAs induce GvL and GvHD, whereas those targeting MiHAs with hematopoietic-restricted expression induce GvL without GvHD. Recently, the MiHA repertoire identified in natural immune responses after alloHCT was expanded to 159 total HLA-I-restricted MiHAs, including 14 hematopoietic-restricted MiHAs. This review explores their potential relevance to predict, monitor, and manipulate GvL and GvHD for improving clinical outcome after HLA-matched alloHCT.
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Affiliation(s)
- Kyra J Fuchs
- Department of Hematology, Leiden University Medical Center, 2300, RC, Leiden, the Netherlands
| | - J H Frederik Falkenburg
- Department of Hematology, Leiden University Medical Center, 2300, RC, Leiden, the Netherlands
| | - Marieke Griffioen
- Department of Hematology, Leiden University Medical Center, 2300, RC, Leiden, the Netherlands.
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8
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Devine SM. The Evolution of Hematopoietic Stem Cell Transplantation to Overcome Access Disparities: The Role of NMDP. Cells 2024; 13:933. [PMID: 38891065 PMCID: PMC11171651 DOI: 10.3390/cells13110933] [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: 04/05/2024] [Revised: 05/13/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024] Open
Abstract
NMDP recognizes that despite advances in hematopoietic stem cell transplantation (HSCT) and other cell therapies, not all patients have equitable access to treatment, and disparities in outcomes remain. This paper explores the recent work of NMDP to accelerate progress and expand access to more patients through transformative clinical research, particularly in the use of mismatched unrelated donors for HSCT.
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Affiliation(s)
- Steven M. Devine
- NMDP, Minneapolis, MN 55401, USA;
- CIBMTR (Center for International Blood and Marrow Transplant Research), NMDP, Minneapolis, MN 55401, USA
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9
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Okamoto S, Perales MA, Sureda A, Urueta AK. Fostering next generation transplant physicians. BLOOD CELL THERAPY 2024; 7:56-63. [PMID: 38854400 PMCID: PMC11153206 DOI: 10.31547/bct-2024-004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 03/04/2024] [Indexed: 06/11/2024]
Abstract
As opposed to the rapid expansion of hematopoietic cell transplantation (HCT) and other cellular therapies (CT), we are now facing a global shortage of transplant physicians and other professionals to support the activity of HCT/CT. To overcome this obstacle, a variety of approaches are now being undertaken in four international HCT societies. This article aims to share their current attempts to foster the next generation of transplant physicians and allied professionals needed to secure the continued global growth of HCT/CT.
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Affiliation(s)
- Shinichiro Okamoto
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Miguel-Angel Perales
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA
- Department of Medicine, Weill Cornell Medical College, New York, USA
| | - Anna Sureda
- Clinical Hematology Department, Institut Català d'Oncologia - L'Hospitalet, IDIBELL, Universitat de Barcelona, Barcelona, Spain
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10
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Hammami MB, Verceles JA, Goldfinger M, Shah N, Sica RA, Mantzaris I, Kornblum N, Konopleva M, Shastri A, Shapiro LC, Feldman EJ, Gritsman K, Verma A, Cooper DL. Improving Unrelated Donor Equity: Assessing Mismatched Donor Opportunities with Real-World Data in a Minority-Predominant Cohort. Transplant Cell Ther 2024; 30:544.e1-544.e8. [PMID: 38417677 DOI: 10.1016/j.jtct.2024.02.020] [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: 12/31/2023] [Revised: 02/15/2024] [Accepted: 02/21/2024] [Indexed: 03/01/2024]
Abstract
Recent advances in graft-versus-host disease (GVHD) prophylaxis including post-transplant cyclophosphamide (PTCy) and abatacept have significantly improved outcomes following HLA-mismatched allogenic hematopoietic stem cell transplantation (allo-HSCT) and have tremendous potential for reducing racial disparities in donor availability. A recent small study employing bone marrow as the source of stem cells showed similar outcomes after 5/8 versus 7/8 matches and is currently being tested in a larger study using peripheral blood stem cells. In this study, we examine real-world alternative donor HSCT options for a minority-predominant cohort in the Bronx, NY, focusing on the availability of lesser-matched (5/8 to 7/8) donors. Records of patients who underwent HLA typing at Montefiore Medical Center (2019 to 2022) were reviewed. The National Marrow Donor Program registry was queried to evaluate the availability of donors with at least 99% likelihood of HLA match at various levels (5/8, 6/8, 7/8, 8/8). Two hundred forty-one patients were included, 70% were non-White. Although the availability of ≥7/8 donors was less common in non-White patients, 100% of patients from each group had at least one or more 5/8 and 6/8 HLA-matched donors and more than 80% of these patients had >100 potential 5/8 and 6/8 HLA-matched donors. There was no statistical difference by race or ethnicity in the mean number of donors at 5/8 and 6/8 HLA-match levels. We demonstrate through real-world data that patients from diverse ethnic and racial backgrounds have access to 5/8 and 6/8 HLA-matched donors for allo-HSCT, potentially eliminating disparities in donor availability and allowing prioritization of other donor selection characteristics such as donor age, sex, ABO, and B leader matching. Further work is needed to study whether the use of mismatched donors offers a more potent graft-versus malignancy effect and optimal GVHD prophylaxis.
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Affiliation(s)
- M Bakri Hammami
- Department of Medicine, Jacobi Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - Jhannine Alyssa Verceles
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - Mendel Goldfinger
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - Nishi Shah
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - R Alejandro Sica
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - Ioannis Mantzaris
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - Noah Kornblum
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - Marina Konopleva
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - Aditi Shastri
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - Lauren C Shapiro
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - Eric J Feldman
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - Kira Gritsman
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - Amit Verma
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - Dennis L Cooper
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York.
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11
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Hamed AB, Bruce JG, Kuniyil V, Ahmed N, Mattila D, Williams EP, Dew MA, Myaskovsky L, Confer DL, Switzer GE. Factors Associated with Opting Out of an Unrelated Hematopoietic Stem Cell Donor Registry: Differences and Similarities across Five Key Groups of Young Race/Ethnically Diverse Potential Donors in the United States. Transplant Cell Ther 2024; 30:512.e1-512.e15. [PMID: 38365082 DOI: 10.1016/j.jtct.2024.02.012] [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: 11/09/2023] [Revised: 02/07/2024] [Accepted: 02/07/2024] [Indexed: 02/18/2024]
Abstract
Young adults from underserved racial/ethnic groups are critically needed as unrelated hematopoietic stem cell (HSC) donors, yet they are more likely than other groups to opt out of donation after having matched a patient. Understanding which factors are most strongly associated with opting out among young underserved racial/ ethnic registered donors compared with their White counterparts will provide the basis for specific interventions to improve donor retention. We sought to determine the key, modifiable psychosocial, registry-related, and donation-related characteristics that are uniquely associated with opting out across 5 key racial/ethnic groups of young HSC donor registry members who had been contacted as a potential match for a patient. This study examines data from a large cross-sectional survey of young (age 18 to 30) registry members shortly after they preliminarily matched a patient (CT-stage) and continued toward or opted out of donation (CT-C and CT-NI), stratified by racial/ethnic group and sex. We assessed psychosocial, registry-related, and donation-related characteristics for all participants. We used chi-squared and F tests to assess differences between racial/ethnic groups. A separate logistic regression analysis for each racial/ethnic group was conducted to quantify adjusted associations between each variable and opting out. Then, we compared these associations across the racial/ethnic groups by evaluating the interaction effect between each variable and racial/ethnic group, with the same outcome (CT-C versus CT-NI) in question. Nine hundred thirty-five participants were surveyed, including 284 White, 165 Hispanic, 191 Black, 192 Asian/Pacific Islander, and 103 Multiracial/multiethnic participants. There were significant differences across racial/ethnic groups in values/goals, religious objections to donation, HSC-related medical mistrust, and parental involvement in donation decisions. Adjusted logistic regression subgroup analyses indicated that ambivalence was strongly associated with opting out across all racial/ethnic groups. Greater focus on intrinsic life goals (e.g., raising a family, becoming a community leader, influencing social values) was associated with opting out in the Multiracial/multiethnic, Hispanic, and Asian/Pacific Islander groups. Healthcare mistrust and insufficient registry contact was a significant factor for Hispanic participants. Protective factors against opting out included remembering joining the registry (Black participants), and parental support for donation decision (Asian/Pacific Islander participants). The performance of each logistic regression model was strong, with area-under-the curve ≥.88, CT-stage outcome classification accuracy ≥89%, and good fit between expected and observed opt-out probabilities. In the analysis across different racial/ethnic groups, the only significant interaction was race/ethnicity by whether more contact with the registry would have changed the decision at CT-stage; this variable was significant only for the Hispanic group. In the within-group analysis for Hispanic participants, the "more registry contact" variable was strongly associated with opting out (odds ratio 5.8, P = .03). Consistent with a growing body of HSC donor research, ambivalence was a key factor associated with opting-out for all racial/ethnic groups. Other key variables were differentially associated with opting-out depending on racial/ethnic group. Our study highlights key variables that registries should focus on as they develop targeted and tailored strategies to enhance commitment and reduce attrition of potential donors.
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Affiliation(s)
- Ahmed B Hamed
- Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Surgery, University of Illinois at Chicago, Chicago, Illinois
| | - Jessica G Bruce
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Vidya Kuniyil
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Noor Ahmed
- North Allegheny Senior High School, Wexford, Pennsylvania
| | - Deborah Mattila
- CIBMTR® (Center for International Blood and Marrow Transplant Research), NMDP/Be The Match®, Minneapolis, Minnesota
| | - Eric P Williams
- CIBMTR® (Center for International Blood and Marrow Transplant Research), NMDP/Be The Match®, Minneapolis, Minnesota
| | - Mary Amanda Dew
- Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania; Departments of Psychology, Epidemiology, Nursing, and Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Larissa Myaskovsky
- Department of Internal Medicine, University of New Mexico, School of Medicine, Albuquerque, New Mexico; Center for Healthcare Equity in Kidney Disease, University of New Mexico Health Sciences Center, Albuquerque, New Mexico
| | - Dennis L Confer
- CIBMTR® (Center for International Blood and Marrow Transplant Research), NMDP/Be The Match®, Minneapolis, Minnesota
| | - Galen E Switzer
- Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania; Center for Health Equity Research and Promotion, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, Pennsylvania.
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12
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Khera N, Edwards ML, Song Y, Sun R, Manghani R, Shin H, Simantov R, Signorovitch J, Sivaraman S, Gergis U. Projected Impact of Omidubicel-onlv on Racial/Ethnic Disparities in Allogeneic Hematopoietic Cell Transplantation (Allo-HCT) Outcomes in Hematologic Malignancies. Adv Ther 2024; 41:1637-1651. [PMID: 38427220 PMCID: PMC10960759 DOI: 10.1007/s12325-023-02771-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 12/14/2023] [Indexed: 03/02/2024]
Abstract
INTRODUCTION In a phase III clinical trial (NCT02730299), omidubicel-onlv, a nicotinamide-modified allogeneic hematopoietic progenitor cell therapy, showed rapid hematopoietic and immune recovery compared with standard umbilical cord blood (UCB) transplant across all racial/ethnic groups. METHODS A decision-tree model was used to project the effect of omidubicel-onlv availability on addressing health disparities in allogeneic hematopoietic cell transplantation (allo-HCT) access and outcomes for patients with hematologic malignancies. The model used a hypothetical population of 10,000 allo-HCT-eligible US adults, for whom matched related donors were not available. Patients received matched or mismatched unrelated donor, haploidentical, UCB transplant, or no transplant. Scenarios with omidubicel-onlv use of 0% (status quo), 10%, 15%, 20%, and 30% were modeled on the basis of proportional reductions in other allo-HCT sources or no transplant by racial/ethnic group. RESULTS Increased omidubicel-onlv use was associated with a higher proportion of patients undergoing allo-HCT, decreased time to allo-HCT, decreased 1-year non-relapse mortality, and increased 1-year overall survival, particularly among racial minorities. In the scenario modeling 20% omidubicel-onlv use, the proportion of Black patients receiving allo-HCT increased by 129%; increases were also observed in Asian (64%), Hispanic (45%), and other (42%) patient groups. Modeled time to allo-HCT improved among transplanted patients (23%) from 11.4 weeks to 8.8 weeks. One-year OS in the overall population increased by 3%, with improvements ranging from 3% for White patients to 5% for Black patients. CONCLUSION This study demonstrates that broad access to omidubicel-onlv could increase access to allo-HCT and improve outcomes for patients, with the greatest benefits seen among racial/ethnic minority groups.
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Affiliation(s)
- Nandita Khera
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic Arizona, Phoenix, AZ, USA
| | | | - Yan Song
- Analysis Group Inc., Boston, MA, USA
| | | | | | | | | | | | | | - Usama Gergis
- Department of Medical Oncology, Thomas Jefferson University, 834 Chestnut St, Ste 308, Philadelphia, PA, 19107, USA.
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13
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Maffini E, Ngoya M, Galimard JE, Harbi S, Kröger N, Platzbecker U, Sengeloev H, Craddock C, Potter V, Choi G, Chevallier P, Stölzel F, Tholouli E, Maertens J, Ciceri F, Cornelissen J, Sanz J, Spyridonidis A, Lanza F, Nagler A, Mohty M. Allogeneic hematopoietic cell transplantation for patients with AML aged 70 years or older in first remission. A study from the Acute Leukemia Working Party of the European Society for Blood and Marrow Transplantation (EBMT). Bone Marrow Transplant 2023; 58:1033-1041. [PMID: 37386253 DOI: 10.1038/s41409-023-02027-y] [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: 11/09/2022] [Revised: 06/04/2023] [Accepted: 06/21/2023] [Indexed: 07/01/2023]
Abstract
Accessibility to allogeneic hematopoietic cell transplantation (HCT) programs for older patients is growing constantly. We report on the clinical outcomes of a group of 701 adults aged ≥70 years, with acute myeloid leukemia (AML) in first complete remission (CR1), who received a first HCT, from HLA-matched sibling donors (MSD), 10/10 HLA-matched unrelated donors (UD), 9/10 HLA-mismatched unrelated donors (mUD) or haploidentical (Haplo) donors. The 2-year overall survival (OS) was 48.1%, leukemia-free survival (LFS) 45.3%, relapse incidence (RI) 25.2%, non-relapse mortality (NRM) 29.5% and GVHD-free, relapse-free survival (GRFS), 33.4%. Compared to MSD, patients transplanted from Haplo and UD presented lower RI (HR 0.46, 95% CI 0.25-0.8, p = 0.02 and HR 0.44, 95% CI: 0.28-0.69, p = 0.001, respectively); this translated into prolonged LFS for Haplo (HR 0.62, 95% CI: 0.39-0.99, p = 0.04). Patients transplanted from mUD exhibited the highest NRM incidence (HR 2.33, 95% CI: 1.26-4.31, p = 0.007). HCT in selected adult CR1 AML patients >70 years is feasible and could be associated with good clinical outcomes. Prospective clinical trials are warranted.
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Affiliation(s)
- Enrico Maffini
- IRCCS Azienda Ospedaliero-Universitaria di Bologna; Istituto "L. e A. Seràgnoli", Bologna, Italy.
| | - Maud Ngoya
- EBMT ALWP Statistical Unit, Saint Antoine Hospital, Sorbonne University, Paris, France
| | | | - Samia Harbi
- Programme de Transplantation et Therapie Cellulaire, Centre de Recherche en Cancerologie de Marseille, Institut Paoli Calmettes, Marseille, France
| | - Nicolaus Kröger
- Department of Stem Cell Transplantation, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Uwe Platzbecker
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy, University hospital Leipzig, Leipzig, Germany
| | - Henrik Sengeloev
- Bone Marrow Transplant Unit L 4043, National University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Charles Craddock
- Birmingham Centre for Cellular Therapy and Transplantation, Birmingham, UK
| | - Victoria Potter
- Department of Haematological Medicine, Kings College Hospital, King's Denmark Hill Campus, London, UK
| | - Goda Choi
- University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | | | - Friedrich Stölzel
- University Hospital Dresden, Medizinische Klinik und Poliklinik I, Dresden, TU Dresden, Germany
| | - Eleni Tholouli
- Haematology Department, Manchester Royal Infirmary, Oxford Road, Manchester, UK
| | - Johan Maertens
- Department of Hematology, University Hospital Gasthuisberg, Leuven, Belgium
| | - Fabio Ciceri
- Ospedale San Raffaele s.r.l., Haematology and BMT, Milano, Italy
| | - Jan Cornelissen
- Department of Haematology, Erasmus MC Cancer Institute, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Jaime Sanz
- Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - Alexandros Spyridonidis
- Bone Marrow Transplantation Unit and Institute of Cellular therapy, University of Patras, Patras, Greece
| | - Francesco Lanza
- Hematology Unit, Ravenna Public Hospital and Romagna Transplant Network, Ravenna, Italy
| | - Arnon Nagler
- Sheba Medical Center, Tel-Hashomer, Tel-Aviv University, Ramat-Gan, Israel
| | - Mohamad Mohty
- Clinical Hematology and Cellular Therapy Department, Sorbonne University, Saint Antoine Hospital, INSERM UMRs 938, Paris, France
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14
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Farhan S, Holtan SG. Graft-versus-host disease: teaching old drugs new tricks at less cost. Front Immunol 2023; 14:1225748. [PMID: 37600820 PMCID: PMC10435076 DOI: 10.3389/fimmu.2023.1225748] [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: 05/19/2023] [Accepted: 07/13/2023] [Indexed: 08/22/2023] Open
Abstract
Graft-versus-host disease (GVHD) remains a major cause of morbidity and mortality after allogeneic stem cell transplantation (SCT). Currently, more patients can receive SCT. This is attributed to the use of reduced intensity regimens and the use of different GVHD prophylaxis that breaks the barrier of human leukocyte antigen, allowing an increase in the donor pool. Once an area with relatively few clinical trial options, there has been an increase in interest in GVHD prophylaxis and treatment, which has led to many US Food and Drug Administration (FDA) approvals. Although there is considerable excitement over novel therapies, many patients may not have access to them due to geographical or other resource constraints. In this review article, we summarize the latest evidence on how we can continue to repurpose drugs for GVHD prophylaxis and treatment. Drugs covered by our review include those that have been FDA approved for other uses for at least 15 years (since 2008); thus, they are likely to have generic equivalents available now or in the near future.
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Affiliation(s)
- Shatha Farhan
- Stem Cell Transplant and Cellular Therapy, Henry Ford Health, Detroit, MI, United States
| | - Shernan G. Holtan
- Division of Hematology, Oncology, and Transplantation, University of Minnesota, Minneapolis, MN, United States
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15
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Crocchiolo R, Rombolà G. Human Leucocyte Antigen System and Selection of Unrelated Hematopoietic Stem Cell Donors: Impact of Patient-Donor (Mis)matching and New Challenges with the Current Technologies. J Clin Med 2023; 12:jcm12020646. [PMID: 36675576 PMCID: PMC9862309 DOI: 10.3390/jcm12020646] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 01/15/2023] Open
Abstract
The selection of hematopoietic stem cell donors for allogeneic transplantation (allo-HSCT) is mainly driven by human leucocyte antigen (HLA) matching between patient and donor, with HLA-identical matched siblings being the preferred choice in most situations. Although other clinical and demographical variables matter, especially, donor age, which is unequivocally associated with better transplant outcomes, the histocompatibility criteria have a central role in the search for the best donor, particularly in the setting of unrelated allo-HSCT where HLA disparities between patient and donor are frequent. The present review is focused on the role of HLA incompatibilities on patient outcome according to the most recent literature, in an attempt to guide transplant physicians and search coordinators during the process of adult unrelated-donor selection. The technological progresses in HLA typing, i.e., with next-generation sequencing (NGS), now allow disclosing a growing number of HLA incompatibilities associated with a heterogeneous and sometimes unknown spectrum of clinical severity. Their immunogenic characteristics, i.e., their position inside or outside the antigen recognition domain (ARD), their permissiveness, their intronic or exonic nature and even the expected expression of the HLA loci where those mismatches occur, will be presented and discussed here, integrating the advances in the immunobiology of transplantation with survival and toxicity outcomes reported in the most relevant studies, within the perspective of improving donor selection in the current practice.
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Affiliation(s)
- Roberto Crocchiolo
- Servizio di Immunoematologia e Medicina Trasfusionale, ASST Grande Ospedale Metropolitano Niguarda, Piazza dell’Ospedale Maggiore, 3, 20162 Milano, Italy
- Correspondence: ; Tel.: +39-02-64443962
| | - Gianni Rombolà
- Laboratory of Immunogenetics and Transplant Immunology, Azienda Ospedaliero-Universitaria Careggi, 50134 Firenze, Italy
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