Brian D. Adkins, Sheharyar Raza, Victoria Costa, Elizabeth S. Allen, Laura D. Stephens, Jennifer S. Woo, Garrett S. Booth, Jeremy W. Jacobs
Medical scams or grifting has long been a societal issue, though in recent years, the problem has become increasingly mainstream, especially as it relates to transfusion medicine, apheresis and biotherapies. Unfortunately, unsubstantiated medical claims, or unfounded interventions such as therapeutic plasma exchange for longevity or dangerous stem cell injections, are leading to significant medical waste and patient harm. Herein, we review contemporary medical grifts, cognitive biases and present a framework for managing these issues to ensure legitimate care and safety for patients.
{"title":"Confronting medical grifting: Fraudulent and unproven products and interventions in apheresis, transfusion and biotherapies","authors":"Brian D. Adkins, Sheharyar Raza, Victoria Costa, Elizabeth S. Allen, Laura D. Stephens, Jennifer S. Woo, Garrett S. Booth, Jeremy W. Jacobs","doi":"10.1111/bjh.70194","DOIUrl":"10.1111/bjh.70194","url":null,"abstract":"<p>Medical scams or grifting has long been a societal issue, though in recent years, the problem has become increasingly mainstream, especially as it relates to transfusion medicine, apheresis and biotherapies. Unfortunately, unsubstantiated medical claims, or unfounded interventions such as therapeutic plasma exchange for longevity or dangerous stem cell injections, are leading to significant medical waste and patient harm. Herein, we review contemporary medical grifts, cognitive biases and present a framework for managing these issues to ensure legitimate care and safety for patients.</p>","PeriodicalId":135,"journal":{"name":"British Journal of Haematology","volume":"207 6","pages":"2286-2295"},"PeriodicalIF":3.8,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/bjh.70194","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145273174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Matthew Jenner, Kevin Boyd, Satarupa Choudhuri, Christopher Parrish, Mamta Garg, Simon Stern, the British Society of Haematology and UK Myeloma Society
<p>The objective of this guideline is to provide healthcare professionals with clear guidance on the management of patients with relapsed and refractory multiple myeloma who have disease progression after at least one prior therapy. These guidelines and recommendations do not replace multidisciplinary discussion and the need to take account of clinical features, patient preference and the funding and reimbursement of treatments at any given point in time.</p><p>This guideline was compiled according to the British Society for Haematology (BSH) process at www.b-s-h.org.uk/guidelines. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) nomenclature was used to evaluate the levels of evidence and to assess the strength of recommendations. The GRADE criteria can be found at http://www.gradeworkinggroup.org and are summarised in appendix 3 of the guidance document linked above.</p><p>Recommendations are based on a review of published literature, performed by Niche Science and Technology, using Medline, PubMed, Embase, Central and Web of Science searches from the beginning of 2000 up to June 2020. Further updates took place in December 2023 and 2024. Consideration was predominantly given to phase II and III clinical trials with early phase studies or case series only considered where there was a paucity of higher grade evidence. Conference abstracts were excluded.</p><p>The manuscript was reviewed by the UK Myeloma Society Executive Committee, the British Society for Haematology (BSH) Guidelines Committee Haemato-Oncology Task Force, the BSH Guidelines Committee, the Haemato-Oncology sounding board of BSH and the UK Charity Myeloma UK. It was also on the members section of the BSH website for comment. These organisations do not necessarily approve or endorse the contents.</p><p>This guideline aims to outline the optimal management of patients with relapsed and/or refractory myeloma. It includes recommendations about evaluation and monitoring of patients with relapsed disease and their subsequent treatment. There are many factors that influence choice of treatment at each line of therapy, and therefore, it is not possible or desirable to generate a single algorithm to guide treatment. However, these guidelines aim to reflect the most robust data available at the time of publication. These should complement multidisciplinary discussion, and patient-specific factors must always be taken into consideration. These guidelines focus on the United Kingdom, but include regimens that at the time of publication may not be reimbursed in all regions of the United Kingdom, even though robust evidence for their use exists.</p><p>The following sections aim to give an overview of the data available to guide treatment decisions given the increase in range of options for RMM. While many UK funding decisions are based on prior lines of therapy, we have not made reference to these except where the licence for that drug or combination of drugs is re
本指南的目的是为医疗保健专业人员提供明确的指导,指导复发和难治性多发性骨髓瘤患者的管理,这些患者在至少一次治疗后出现疾病进展。这些指南和建议不能取代多学科讨论,也不能取代考虑临床特征、患者偏好以及任何特定时间点治疗的资金和报销的需要。本指南是根据英国血液学学会(BSH)的流程在www.b-s-h.org.uk/guidelines上编制的。建议分级评估、发展和评价(GRADE)术语用于评估证据水平和评估建议的强度。GRADE标准可在http://www.gradeworkinggroup.org上找到,并在上面链接的指导文件附录3中进行了总结。建议是基于对发表文献的回顾,由Niche Science and Technology使用Medline、PubMed、Embase、Central和Web of Science从2000年初到2020年6月进行搜索。进一步的更新发生在2023年和2024年12月。主要考虑II期和III期临床试验,早期研究或病例系列仅在缺乏更高级别证据的情况下考虑。会议摘要被排除在外。该手稿由英国骨髓瘤协会执行委员会、英国血液病协会(BSH)指南委员会血液肿瘤学工作组、BSH指南委员会、BSH血液肿瘤学宣传委员会和英国骨髓瘤慈善机构UK审查。博西家电网站的会员版块也刊登了相关评论。这些组织不一定认可或认可内容。本指南旨在概述复发和/或难治性骨髓瘤患者的最佳管理。它包括关于评估和监测复发疾病患者及其后续治疗的建议。在每条治疗线上,有许多因素影响治疗的选择,因此,不可能或不希望产生单一的算法来指导治疗。然而,这些指南旨在反映出版时可获得的最可靠的数据。这些应补充多学科的讨论,并且必须始终考虑到患者特定的因素。这些指南以联合王国为重点,但包括在出版时可能无法在联合王国所有地区报销的方案,即使存在可靠的使用证据。以下各节旨在概述现有数据,以指导RMM选择范围的增加的治疗决策。虽然许多英国的资助决定是基于先前的治疗,但我们没有参考这些,除非该药物或药物组合的许可仅限于给定的药物或先前的治疗历史。关键数据被制成表格,以总结每个试验的显著特征和关键结果。然而,不可能对每个试验进行全面的评论,重要的是要意识到试验纳入标准的差异,尤其是接受过的先前治疗,这在很大程度上受到招募患者的时间段的影响。在可能的情况下,在表中注明征聘期间。蛋白酶体抑制是mm患者的一种成熟的治疗策略。bortezomib是第一个蛋白酶体抑制剂,在mm患者中显示出单药活性。16基于观察到的与其他药物的协同作用,各种组合已经在2/3期试验中进行了评估。在RMM中,硼替佐米联合泊马度胺、17环磷酰胺、18蒽环类药物、19帕比诺他、20达伐单抗和sel无情已显示出疗效(见表1)。来自结合硼替佐米的一线方案的数据表明,每周一次的治疗方案与每周两次的治疗方案一样有效,并且与更少的神经病变相关。carfilzomib是第二代PI,可导致持续的蛋白酶体抑制,并已在临床试验中以一定剂量使用(见表2)。与硼替佐米和地塞米松相比,卡非佐米(56 mg/m2,每周2次)加地塞米松增加了PFS和OS,即使在硼替佐米难治性患者中也是如此,患者周围神经病变较少,但心血管并发症发生率较高。过度的水合作用可能导致体液超载和充血性心力衰竭31;因此,建议在第一个周期后明智地静脉输液,特别是对心脏受损、高血压或肾功能受损的患者。高血压应该小心控制每周一次的卡非佐米降低了心脏毒性,每周两次(27mg /m2)的疗效更好。33,34 A 56 mg/m2的剂量是最好的平衡功效和毒性。 卡非佐米与环磷酰胺和地塞米松联合使用的疗效评估显示,治疗三级难治性骨髓瘤的有效率为52%在MUK 5研究中,卡非佐米、环磷酰胺和地塞米松二线治疗比硼替佐米、环磷酰胺和地塞米松改善了总有效率,但没有PFS获益。然而,卡非佐米维持与不维持相比改善了PFS,支持在这种情况下使用该药卡非佐米(27mg /m2,每周2次)联合来那度胺+地塞米松也优于单独来那度胺+地塞米松。33-37 Carfilzomib也在随机3期试验中与其他药物(包括daratumumab和isatuximab)联合进行了研究(见表2、3和4)。Ixazomib是一种口服生物可利用的蛋白酶体抑制剂。与来那度胺和地塞米松联合使用,与单独使用这两种药物相比,它可以改善RR和PFS,包括高危细胞遗传学异常患者其他联合用药包括伊唑唑米、环磷酰胺和地塞米松60、61以及伊唑唑米、沙利度胺和地塞米松62表5总结了Ixasomib的研究。组蛋白去乙酰化酶抑制剂(HDACi)是影响蛋白质转录的表观遗传调节剂。Vorinostat与硼替佐米联合使用的评估显示,没有临床意义的生存改善帕比诺司他联合硼替佐米在34.5%的硼替佐米难治性人群中显示出应答一项3期研究评估了在硼替佐米和地塞米松对硼替佐米不耐的患者中添加帕比诺他的效果。104,105 Panobinostat加深和改善PFS 6.1个月,但没有改善OS。尽管PFS较长,但panobinostat组的治疗时间较短,该组中34%的患者因不良事件而停止治疗,50%的患者需要减少硼替佐米或panobinostat的剂量。腹泻、疲劳、血小板减少和神经病变是常见的不良反应。另一项试验将这三种药物联合沙利度胺用于首次复发的患者,治疗耐受性较好副作用可能使这种联合治疗难以实施,特别是在多次复发的情况下,毒性需要仔细管理和明智地减少剂量。最近的一项大型随机2期试验比较了标准剂量的帕比司他和减毒的帕比司他方案,发现减毒降低了毒性,但以牺牲反应率为代价表8总结了重要的HDACi研究。烷基化剂如美法兰和环磷酰胺已用于治疗骨髓瘤超过50年,尽管在许多最近批准的方案中,已经讨论的新药物在很大程度上取代了烷基化剂。因此,一些患者接触烷基化剂和其他DNA损伤剂的机会相对有限。许多价格低廉,但没有执照,也没有受到NICE或其他健康技术评估审查的约束。涉及“新型”药剂骨架的烷基化剂组合在上面的相关章节中主要讨论。由于抗骨髓瘤治疗在过去20年中取得了重大进展,下面的表9-11仅总结了自2000年以来发表的研究,以确保与当前治疗途径的相关性。在复发性骨髓瘤中,自体干细胞移植(ASCT)有两种主要作用:一种是在首次反应时选择不进行预先自体干细胞移植(延迟ASCT)的患者,另一种是先前进行过ASCT的复发患者(第二次ASCT或ASCT2)。IFM2009试验对延迟ASCT进行了评估。所有患者均接受VRD诱导并接受自体干细胞采集,但随机分为VRD巩固组或ASCT组。两组患者均接受来那度胺维持治疗1年。ASCT组PFS为50个月,VRD组PFS为36个月;然而,4年的总生存率分别为81%和82%。VRD组的136/172例患者(79%)接受了补偿性ASCT。137该试验表明,在大多数患者中,在进展时延迟ASCT是可行的,并且不影响OS,尽管PFS较短值得考虑。第二次自体干细胞移植(ASCT2)在这里被定义为对先前在一线接受过ASCT的患者进行ASCT作为复发治疗的组成部分。它不包括串联ASCT。除两项随机研究外,大多数支持ASCT2的证据来自非随机单中心或多中心系列或注册数据的回顾性分析。在到下一次治疗的时间(TNT
{"title":"Management of relapsed multiple myeloma: A British Society of Haematology and UK Myeloma Society guideline","authors":"Matthew Jenner, Kevin Boyd, Satarupa Choudhuri, Christopher Parrish, Mamta Garg, Simon Stern, the British Society of Haematology and UK Myeloma Society","doi":"10.1111/bjh.70149","DOIUrl":"10.1111/bjh.70149","url":null,"abstract":"<p>The objective of this guideline is to provide healthcare professionals with clear guidance on the management of patients with relapsed and refractory multiple myeloma who have disease progression after at least one prior therapy. These guidelines and recommendations do not replace multidisciplinary discussion and the need to take account of clinical features, patient preference and the funding and reimbursement of treatments at any given point in time.</p><p>This guideline was compiled according to the British Society for Haematology (BSH) process at www.b-s-h.org.uk/guidelines. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) nomenclature was used to evaluate the levels of evidence and to assess the strength of recommendations. The GRADE criteria can be found at http://www.gradeworkinggroup.org and are summarised in appendix 3 of the guidance document linked above.</p><p>Recommendations are based on a review of published literature, performed by Niche Science and Technology, using Medline, PubMed, Embase, Central and Web of Science searches from the beginning of 2000 up to June 2020. Further updates took place in December 2023 and 2024. Consideration was predominantly given to phase II and III clinical trials with early phase studies or case series only considered where there was a paucity of higher grade evidence. Conference abstracts were excluded.</p><p>The manuscript was reviewed by the UK Myeloma Society Executive Committee, the British Society for Haematology (BSH) Guidelines Committee Haemato-Oncology Task Force, the BSH Guidelines Committee, the Haemato-Oncology sounding board of BSH and the UK Charity Myeloma UK. It was also on the members section of the BSH website for comment. These organisations do not necessarily approve or endorse the contents.</p><p>This guideline aims to outline the optimal management of patients with relapsed and/or refractory myeloma. It includes recommendations about evaluation and monitoring of patients with relapsed disease and their subsequent treatment. There are many factors that influence choice of treatment at each line of therapy, and therefore, it is not possible or desirable to generate a single algorithm to guide treatment. However, these guidelines aim to reflect the most robust data available at the time of publication. These should complement multidisciplinary discussion, and patient-specific factors must always be taken into consideration. These guidelines focus on the United Kingdom, but include regimens that at the time of publication may not be reimbursed in all regions of the United Kingdom, even though robust evidence for their use exists.</p><p>The following sections aim to give an overview of the data available to guide treatment decisions given the increase in range of options for RMM. While many UK funding decisions are based on prior lines of therapy, we have not made reference to these except where the licence for that drug or combination of drugs is re","PeriodicalId":135,"journal":{"name":"British Journal of Haematology","volume":"207 6","pages":"2322-2354"},"PeriodicalIF":3.8,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/bjh.70149","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Apoorva Doshi, Joao Tadeu Souto Filho, Alyssa Grimshaw, Smith Giri, Luciano J. Costa
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R. Walewska, T. A. Eyre, A. Bloor, G. Follows, S. Iyengar, R. Johnston, H. Marr, N. Martinez-Calle, A. McCaig, H. McCarthy, T. Munir, H. M. Parry, N. Parry-Jones, A. Pettitt, J. Riches, I. Ringshausen, A. Schuh, P. E. M. Patten
<p>These guidelines were prepared following the BSH process (https://b-s-h.org.uk/media/16732/bsh-guidance-development-process-dec-5-18.pdf). The Grading of Recommendations, Assessment, Development and Evaluation (GRADE) nomenclature was used to evaluate the levels of evidence and to assess the strength of recommendations. The GRADE criteria can be found at http://www.gradeworkinggroup.org.</p><p>Recommendations are based on a review of the literature using Medline/PubMed. Search terms included are CLL treatment, randomised, clinical trial, FCR (fludarabine, cyclophosphamide, rituximab), <i>TP53</i> disruption, Bruton tyrosine kinase inhibitor, covalent, noncovalent inhibitors, BTK degraders, BCL2 inhibitor, rituximab, obinutuzumab, vaccination and COVID-19. The search was limited to English language publications and conference abstracts from the date of publication of the previous CLL guideline from 2021 to July 2025. Titles/abstracts obtained were curated and manually reviewed by the writing group who conducted additional searches using subsection heading terms.</p><p>Inclusion of such therapies does not imply endorsement for off-label use, but reflects their emerging role and clinical relevance in specific scenarios.</p><p>Review of the manuscript was performed by the BSH Guidelines Committee Haemato-Oncology Task Force, the BSH Guidelines Committee and the Haemato-Oncology sounding board of the BSH. It was also posted on the members section of the BSH website for comment. This guideline has also been reviewed by patient representatives from the UK CLL Support Association (https://www.cllsupport.org.uk).</p><p>The diagnostic work-up for chronic lymphocytic leukaemia (CLL) has not changed; please refer to the International Workshop on chronic lymphocytic leukaemia (iwCLL) guideline.<span><sup>1</sup></span></p><p>Licensed treatments for CLL in 2025 include inhibitors of B-cell lymphoma-2, BCL2i (venetoclax), covalent inhibitors of Bruton tyrosine kinase, cBTKi (ibrutinib, acalabrutinib and zanubrutinib) used as monotherapy or in combination with anti-CD20 monoclonal antibodies (rituximab and, in first line only, obinutuzumab). Treatment regimens are either continuous (given until intolerance or progression) or fixed duration. These targeted agents have superseded chemoimmunotherapy, which is no longer recommended except where targeted agents are unavailable or contraindicated.</p><p>The International Workshop on chronic lymphocytic leukaemia (iwCLL) criteria for starting treatment<span><sup>1</sup></span> were established in the era of chemoimmunotherapy and, until recently, there were no data to support their use in the era of targeted therapy. To address this knowledge gap, the CLL12 trial compared ibrutinib monotherapy with placebo in patients with asymptomatic early-stage CLL at high risk of progression based on the German CLL Study Group score, with overall survival (OS) as the primary end-point. After a median follow-up of 69.3 months, ib
{"title":"2025 British Society for Haematology Guideline for the treatment of chronic lymphocytic leukaemia","authors":"R. Walewska, T. A. Eyre, A. Bloor, G. Follows, S. Iyengar, R. Johnston, H. Marr, N. Martinez-Calle, A. McCaig, H. McCarthy, T. Munir, H. M. Parry, N. Parry-Jones, A. Pettitt, J. Riches, I. Ringshausen, A. Schuh, P. E. M. Patten","doi":"10.1111/bjh.70100","DOIUrl":"10.1111/bjh.70100","url":null,"abstract":"<p>These guidelines were prepared following the BSH process (https://b-s-h.org.uk/media/16732/bsh-guidance-development-process-dec-5-18.pdf). The Grading of Recommendations, Assessment, Development and Evaluation (GRADE) nomenclature was used to evaluate the levels of evidence and to assess the strength of recommendations. The GRADE criteria can be found at http://www.gradeworkinggroup.org.</p><p>Recommendations are based on a review of the literature using Medline/PubMed. Search terms included are CLL treatment, randomised, clinical trial, FCR (fludarabine, cyclophosphamide, rituximab), <i>TP53</i> disruption, Bruton tyrosine kinase inhibitor, covalent, noncovalent inhibitors, BTK degraders, BCL2 inhibitor, rituximab, obinutuzumab, vaccination and COVID-19. The search was limited to English language publications and conference abstracts from the date of publication of the previous CLL guideline from 2021 to July 2025. Titles/abstracts obtained were curated and manually reviewed by the writing group who conducted additional searches using subsection heading terms.</p><p>Inclusion of such therapies does not imply endorsement for off-label use, but reflects their emerging role and clinical relevance in specific scenarios.</p><p>Review of the manuscript was performed by the BSH Guidelines Committee Haemato-Oncology Task Force, the BSH Guidelines Committee and the Haemato-Oncology sounding board of the BSH. It was also posted on the members section of the BSH website for comment. This guideline has also been reviewed by patient representatives from the UK CLL Support Association (https://www.cllsupport.org.uk).</p><p>The diagnostic work-up for chronic lymphocytic leukaemia (CLL) has not changed; please refer to the International Workshop on chronic lymphocytic leukaemia (iwCLL) guideline.<span><sup>1</sup></span></p><p>Licensed treatments for CLL in 2025 include inhibitors of B-cell lymphoma-2, BCL2i (venetoclax), covalent inhibitors of Bruton tyrosine kinase, cBTKi (ibrutinib, acalabrutinib and zanubrutinib) used as monotherapy or in combination with anti-CD20 monoclonal antibodies (rituximab and, in first line only, obinutuzumab). Treatment regimens are either continuous (given until intolerance or progression) or fixed duration. These targeted agents have superseded chemoimmunotherapy, which is no longer recommended except where targeted agents are unavailable or contraindicated.</p><p>The International Workshop on chronic lymphocytic leukaemia (iwCLL) criteria for starting treatment<span><sup>1</sup></span> were established in the era of chemoimmunotherapy and, until recently, there were no data to support their use in the era of targeted therapy. To address this knowledge gap, the CLL12 trial compared ibrutinib monotherapy with placebo in patients with asymptomatic early-stage CLL at high risk of progression based on the German CLL Study Group score, with overall survival (OS) as the primary end-point. After a median follow-up of 69.3 months, ib","PeriodicalId":135,"journal":{"name":"British Journal of Haematology","volume":"207 6","pages":"2296-2313"},"PeriodicalIF":3.8,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/bjh.70100","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Commentary on: Schönung et al. Assessment of peripheral blood DNA methylation signatures as pharmacodynamic and predictive biomarkers during azacytidine therapy in juvenile myelomonocytic leukemia: Results of the EWOG-MESRAT study. Br J Haematol 2025; 207:1271–1278.
{"title":"Peripheral blood profiling of azacitidine's hypomethylation: Advancing precision medicine in juvenile chronic myelomonocytic leukaemia","authors":"Pasquale Niscola","doi":"10.1111/bjh.70205","DOIUrl":"10.1111/bjh.70205","url":null,"abstract":"<p>Commentary on: Schönung et al. Assessment of peripheral blood DNA methylation signatures as pharmacodynamic and predictive biomarkers during azacytidine therapy in juvenile myelomonocytic leukemia: Results of the EWOG-MESRAT study. Br J Haematol 2025; 207:1271–1278.</p>","PeriodicalId":135,"journal":{"name":"British Journal of Haematology","volume":"207 6","pages":"2661-2662"},"PeriodicalIF":3.8,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/bjh.70205","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nicolas Munz, Alberto J. Arribas, Roberta Bordone Pittau, Federico Simonetta, Georg Stussi, Francesco Bertoni
<p>The standard treatment for patients affected by diffuse large B-cell lymphoma (DLBCL) is still largely represented by the R-CHOP regimen (rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone).<span><sup>1</sup></span> Only up to two-thirds of treated patients are cured, indicating a too high fraction of patients still do not respond or relapse after a first R-CHOP treatment.<span><sup>1</sup></span> Patients with initial R-CHOP treatment failure have poor prognoses and outcomes.<span><sup>1</sup></span> Recent improvements in understanding DLBCL have led to a better refinement of disease classification and the development of new therapeutic strategies, including chimeric antigen receptor (CAR) T-cell therapy, bispecific antibodies and antibody–drug conjugates (ADCs). Two ADCs are now approved for relapsed/refractory (R/R) DLBCL patients across different countries: loncastuximab tesirine and polatuzumab vedotin.<span><sup>1, 2</sup></span> Loncastuximab tesirine is an anti-CD19 antibody conjugated to the deoxyribonucleic acid (DNA)-cross-linking pyrrolobenzodiazepine (PBD) dimer warhead SG3199.<span><sup>2</sup></span> Polatuzumab vedotin is an anti-CD79B antibody conjugated to the microtubule-disrupting monomethyl auristatin E (MMAE) as a payload.<span><sup>1, 3</sup></span> The optimal sequencing of therapies for the improved management of DLBCL patients is an active field of research. We recently identified seven DLBCL models with reduced sensitivity to R-CHOP (50 percent growth inhibitory concentration (IC<sub>50</sub>) values higher than the 75th percentile, i.e. 0.077 μg/mL).<span><sup>4</sup></span> Four cell lines (Pfeiffer, U2932, SU-DHL-16, SU-DHL-2) also showed reduced sensitivity to loncastuximab tesirine.<span><sup>4</sup></span> Thus, we exposed all the R-CHOP-resistant, alongside four R-CHOP-sensitive cell lines, to polatuzumab vedotin. In addition, we also treated REC1, a mantle cell lymphoma (MCL) cell line resistant to loncastuximab tesirine, its DNA-damaging SG3199 warhead and other ADCs.<span><sup>4-6</sup></span> All but two cell lines showed a dose–response sensitivity to polatuzumab vedotin, both derived from activated B-cell-like (ABC) DLBCL (Figure 1). One was the SU-DHL-2, resistant to R-CHOP and loncastuximab tesirine.<span><sup>4</sup></span> The other was the RCK8 with intermediate sensitivity to R-CHOP and loncastuximab tesirine-sensitive.<span><sup>4</sup></span> The remaining six R-CHOP-resistant cell lines, including three with low sensitivity to loncastuximab tesirine and the MCL cell line resistant to multiple ADCs, responded to polatuzumab vedotin. Figure S1 shows the Spearman correlation analysis between the anti-tumour activity of polatuzumab vedotin and the expression levels, measured via total ribonucleic acid (RNA)-Seq, of its target CD79B. In this small and selected cell line panel, we observed no significant correlation, although the two cell lines with low sensitivity to the ADC were a
{"title":"Polatuzumab vedotin and CD79B: A study of efficacy in R-CHOP-resistant diffuse large B-cell lymphoma","authors":"Nicolas Munz, Alberto J. Arribas, Roberta Bordone Pittau, Federico Simonetta, Georg Stussi, Francesco Bertoni","doi":"10.1111/bjh.70185","DOIUrl":"10.1111/bjh.70185","url":null,"abstract":"<p>The standard treatment for patients affected by diffuse large B-cell lymphoma (DLBCL) is still largely represented by the R-CHOP regimen (rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone).<span><sup>1</sup></span> Only up to two-thirds of treated patients are cured, indicating a too high fraction of patients still do not respond or relapse after a first R-CHOP treatment.<span><sup>1</sup></span> Patients with initial R-CHOP treatment failure have poor prognoses and outcomes.<span><sup>1</sup></span> Recent improvements in understanding DLBCL have led to a better refinement of disease classification and the development of new therapeutic strategies, including chimeric antigen receptor (CAR) T-cell therapy, bispecific antibodies and antibody–drug conjugates (ADCs). Two ADCs are now approved for relapsed/refractory (R/R) DLBCL patients across different countries: loncastuximab tesirine and polatuzumab vedotin.<span><sup>1, 2</sup></span> Loncastuximab tesirine is an anti-CD19 antibody conjugated to the deoxyribonucleic acid (DNA)-cross-linking pyrrolobenzodiazepine (PBD) dimer warhead SG3199.<span><sup>2</sup></span> Polatuzumab vedotin is an anti-CD79B antibody conjugated to the microtubule-disrupting monomethyl auristatin E (MMAE) as a payload.<span><sup>1, 3</sup></span> The optimal sequencing of therapies for the improved management of DLBCL patients is an active field of research. We recently identified seven DLBCL models with reduced sensitivity to R-CHOP (50 percent growth inhibitory concentration (IC<sub>50</sub>) values higher than the 75th percentile, i.e. 0.077 μg/mL).<span><sup>4</sup></span> Four cell lines (Pfeiffer, U2932, SU-DHL-16, SU-DHL-2) also showed reduced sensitivity to loncastuximab tesirine.<span><sup>4</sup></span> Thus, we exposed all the R-CHOP-resistant, alongside four R-CHOP-sensitive cell lines, to polatuzumab vedotin. In addition, we also treated REC1, a mantle cell lymphoma (MCL) cell line resistant to loncastuximab tesirine, its DNA-damaging SG3199 warhead and other ADCs.<span><sup>4-6</sup></span> All but two cell lines showed a dose–response sensitivity to polatuzumab vedotin, both derived from activated B-cell-like (ABC) DLBCL (Figure 1). One was the SU-DHL-2, resistant to R-CHOP and loncastuximab tesirine.<span><sup>4</sup></span> The other was the RCK8 with intermediate sensitivity to R-CHOP and loncastuximab tesirine-sensitive.<span><sup>4</sup></span> The remaining six R-CHOP-resistant cell lines, including three with low sensitivity to loncastuximab tesirine and the MCL cell line resistant to multiple ADCs, responded to polatuzumab vedotin. Figure S1 shows the Spearman correlation analysis between the anti-tumour activity of polatuzumab vedotin and the expression levels, measured via total ribonucleic acid (RNA)-Seq, of its target CD79B. In this small and selected cell line panel, we observed no significant correlation, although the two cell lines with low sensitivity to the ADC were a","PeriodicalId":135,"journal":{"name":"British Journal of Haematology","volume":"207 6","pages":"2550-2552"},"PeriodicalIF":3.8,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/bjh.70185","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jean-Simon Rech, Aline Santin, François Lionnet, Sarah Mattioni, Evelyne Dubreucq Guerif, Olivier Steichen, Pierre Yves Boëlle
Most adults with sickle cell disease (SCD) attend the emergency department (ED), with significant interindividual and temporal variability. To identify the patterns of ED use, we analysed data from adults with SCD followed at a French reference centre who had ≥1 ED visit between 1 October 2013 and 31 December 2019. We used a survival model to estimate the cumulative risk of ED visits and its variability over time and applied clustering methods on these two dimensions to identify typical patterns of ED utilization. Among 656 adults (9080 ED visits), two clusters emerged: a low-use group with 529 individuals (81%) and 2924 ED visits (32%) and a high-use group with 127 individuals (19%) and 6156 ED visits (68%). All high-use group members experienced ED visits in bursts, defined as at least three visits within 3 months and at least three times more than during the previous 3 months. Bursts were uncommon in the low-use group (5% of individuals). Among individuals experiencing bursts, two ED visits less than a month apart increased the risk of another ED visit within the next month (adjusted HR 3.51 [95% CI 2.95-4.16]). Understanding factors triggering bursts of ED visits in adults with SCD may enable targeted interventions.
大多数成人镰状细胞病(SCD)参加急诊科(ED),具有显著的个体间和时间差异。为了确定ED使用模式,我们分析了2013年10月1日至2019年12月31日期间在法国参考中心随访的SCD成人患者的数据。我们使用生存模型来估计ED就诊的累积风险及其随时间的变化,并在这两个维度上应用聚类方法来确定ED使用的典型模式。在656名成年人(9080次ED就诊)中,出现了两个集群:低使用率组(529人)(81%)和2924次ED就诊(32%);高使用率组(127人)(19%)和6156次ED就诊(68%)。所有高使用率的小组成员都经历了突发ED就诊,定义为在3个月内至少3次就诊,并且至少比前3个月多3倍。发作在低使用率组(5%)不常见。在经历过发作的个体中,间隔不到一个月的两次急诊科就诊增加了下个月再次急诊科就诊的风险(调整后HR 3.51 [95% CI 2.95-4.16])。了解引发成人SCD患者急诊科就诊的因素可能有助于进行有针对性的干预。
{"title":"Emergency department utilization patterns in adults living with sickle cell disease.","authors":"Jean-Simon Rech, Aline Santin, François Lionnet, Sarah Mattioni, Evelyne Dubreucq Guerif, Olivier Steichen, Pierre Yves Boëlle","doi":"10.1111/bjh.70190","DOIUrl":"https://doi.org/10.1111/bjh.70190","url":null,"abstract":"<p><p>Most adults with sickle cell disease (SCD) attend the emergency department (ED), with significant interindividual and temporal variability. To identify the patterns of ED use, we analysed data from adults with SCD followed at a French reference centre who had ≥1 ED visit between 1 October 2013 and 31 December 2019. We used a survival model to estimate the cumulative risk of ED visits and its variability over time and applied clustering methods on these two dimensions to identify typical patterns of ED utilization. Among 656 adults (9080 ED visits), two clusters emerged: a low-use group with 529 individuals (81%) and 2924 ED visits (32%) and a high-use group with 127 individuals (19%) and 6156 ED visits (68%). All high-use group members experienced ED visits in bursts, defined as at least three visits within 3 months and at least three times more than during the previous 3 months. Bursts were uncommon in the low-use group (5% of individuals). Among individuals experiencing bursts, two ED visits less than a month apart increased the risk of another ED visit within the next month (adjusted HR 3.51 [95% CI 2.95-4.16]). Understanding factors triggering bursts of ED visits in adults with SCD may enable targeted interventions.</p>","PeriodicalId":135,"journal":{"name":"British Journal of Haematology","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Enoch Yi-Tung Chen, Paul W. Dickman, Fabrizio Di Mari, Torsten Dahlén, Leif Stenke, Magnus Björkholm, Mark S. Clements, Shuang Hao
Despite therapeutic advances and improved survival, the long-term economic burden of chronic myeloid leukaemia (CML) remains under-recognised given evolving treatment practices and fluctuating drug costs. We aimed to estimate and project total prevalence costs for CML in Sweden from a healthcare sector perspective, representing the direct healthcare expenditures for all patients living with CML, based on real-world drug and procedure prices. We used data from the Swedish Cancer Register and the Swedish CML register to estimate and project prevalence and costs. The estimated numbers of prevalent cases were 1808 (95% confidence interval [CI], 1604–2011) in 2025 and 2120 (95% CI, 1916–2325) in 2030, driven by stable incidence and improved survival. Despite increasing prevalence, the annual total direct healthcare costs for all prevalent CML patients in Sweden decreased from USD 40.04 million (95% CI, 33.70–46.40) in 2015 to USD 26.04 million (95% CI, 23.13–28.97) in 2025, then projected to slightly increase to USD 30.67 million (95% CI, 27.70–33.64) in 2030. While CML prevalence proportions are expected to increase, declining treatment costs may mitigate the burden on the Swedish healthcare system. These population-based projections can inform long-term planning and pricing strategies for CML care.
{"title":"Empirical and projected economic burden of chronic myeloid leukaemia in Sweden from 2015 to 2030: A population-based study","authors":"Enoch Yi-Tung Chen, Paul W. Dickman, Fabrizio Di Mari, Torsten Dahlén, Leif Stenke, Magnus Björkholm, Mark S. Clements, Shuang Hao","doi":"10.1111/bjh.70193","DOIUrl":"10.1111/bjh.70193","url":null,"abstract":"<p>Despite therapeutic advances and improved survival, the long-term economic burden of chronic myeloid leukaemia (CML) remains under-recognised given evolving treatment practices and fluctuating drug costs. We aimed to estimate and project total prevalence costs for CML in Sweden from a healthcare sector perspective, representing the direct healthcare expenditures for all patients living with CML, based on real-world drug and procedure prices. We used data from the Swedish Cancer Register and the Swedish CML register to estimate and project prevalence and costs. The estimated numbers of prevalent cases were 1808 (95% confidence interval [CI], 1604–2011) in 2025 and 2120 (95% CI, 1916–2325) in 2030, driven by stable incidence and improved survival. Despite increasing prevalence, the annual total direct healthcare costs for all prevalent CML patients in Sweden decreased from USD 40.04 million (95% CI, 33.70–46.40) in 2015 to USD 26.04 million (95% CI, 23.13–28.97) in 2025, then projected to slightly increase to USD 30.67 million (95% CI, 27.70–33.64) in 2030. While CML prevalence proportions are expected to increase, declining treatment costs may mitigate the burden on the Swedish healthcare system. These population-based projections can inform long-term planning and pricing strategies for CML care.</p>","PeriodicalId":135,"journal":{"name":"British Journal of Haematology","volume":"207 6","pages":"2441-2450"},"PeriodicalIF":3.8,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/bjh.70193","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jaehyup Kim, James D. Burner, Christopher Webb, Ravi Sarode, Brian D. Adkins, Margaret Kypreos, Ibrahim F. Ibrahim, Yu-Min Shen, Sean G. Yates
<p>To the Editor,</p><p>Patients with sickle cell disease (SCD; including sickle cell anemia [HbSS] and related genotypes such as HbSC and HbSβ-thalassemia) frequently require chronic RBC transfusions and are at high risk of delayed haemolytic transfusion reactions (DHTR). Although partial antigen matching has become standard practice to reduce alloimmunization rates in SCD patients, DHTR remains common due to several factors, including genotypic differences in RBCs between donor blood and recipients.<span><sup>1-4</sup></span> DHTR risk in SCD patients is reported to range from 1% to 19%,<span><sup>5</sup></span> significantly higher than that of the general population, which is estimated to range from 1 in 1000 to 1 in 10 000.<span><sup>6, 7</sup></span></p><p>A subset of SCD patients develops an exaggerated DHTR response known as hyperhaemolysis syndrome (HHS). This condition is thought to be caused by immune-mediated haemolysis of both bystander autologous red blood cells (RBCs)<span><sup>8</sup></span> and allogeneic transfused RBCs.<span><sup>9</sup></span> Here, we describe the clinical and haematological characteristics of 10 SCD patients diagnosed with HHS at our institution. Additionally, we assess how interventions, including targeted monoclonal antibody therapies, affect outcomes. To our knowledge, this is the largest single-centre case series of HHS in SCD reported to date.</p><p>This retrospective cohort study was conducted at the University of Texas Southwestern Medical Center Clements University Hospital and Parkland Memorial Hospital, both tertiary care hospitals, in Dallas, Texas, from 2020 to 2025. The study was approved by the University of Texas Southwestern Medical Center institutional review board (STU-2020-0068). Hyperhaemolysis was defined as a decline in haemoglobin (Hb) values below pre-transfusion levels following the transfusion of red blood cells, accompanied by laboratory markers consistent with haemolysis (e.g. lactate dehydrogenase [LDH], bilirubin). Demographic data (age, gender, type of haemoglobinopathy and blood type), laboratory findings (Hb, % hemoglobin A (HbA), direct antiglobulin test [DAT], LDH, total bilirubin, haemoglobinuria and reticulocyte count) and clinical information (admission diagnosis, infection, treatment regimen) were collected through a retrospective chart review. The ratio of Hb was evaluated by two-tailed Student's <i>t</i>-test using GraphPad Software (GraphPad, Boston, MA, USA). No imputation was performed for missing data, and statistical significance was defined as a <i>p</i>-value less than 0.05.</p><p>We identified a total of 10 patients diagnosed with HHS during the study period and described clinical features in Table 1, and laboratory characteristics in Table S1 for each patient. Table S2 summarizes the clinical characteristics of the study cohort. Immunohaematology findings varied, with two patients having a positive DAT. Patient 2 displayed pre- and post-transfusion DAT positi
镰状细胞病(SCD,包括镰状细胞性贫血[HbSS]和相关基因型,如HbSC和hbs β-地中海贫血)患者经常需要慢性红细胞输血,并且延迟溶血性输血反应(DHTR)的风险很高。尽管部分抗原配型已成为降低SCD患者同种异体免疫率的标准做法,但由于几个因素,包括供体血液和受体血液中红细胞的基因型差异,DHTR仍然很常见。据报道,SCD患者的DHTR风险范围为1%至19%,5显著高于一般人群(估计范围为1000分之一至10000分之一),7 SCD患者的一个亚群出现夸张的DHTR反应,称为高溶血综合征(HHS)。这种情况被认为是由旁观者自体红细胞(rbc)8和异体输血红细胞的免疫介导溶血引起的在这里,我们描述了10例SCD患者诊断为HHS的临床和血液学特征。此外,我们评估干预措施,包括靶向单克隆抗体治疗,如何影响结果。据我们所知,这是迄今为止在SCD报告的最大的单中心HHS系列病例。这项回顾性队列研究于2020年至2025年在德克萨斯州达拉斯市的德克萨斯大学西南医学中心克莱门茨大学医院和帕克兰纪念医院这两家三级保健医院进行。该研究得到了德克萨斯大学西南医学中心机构审查委员会(STU-2020-0068)的批准。高溶血被定义为输血后血红蛋白(Hb)值低于输血前水平,伴有与溶血一致的实验室标志物(如乳酸脱氢酶[LDH],胆红素)。通过回顾性图表回顾收集患者的人口统计学资料(年龄、性别、血红蛋白病类型和血型)、实验室检查结果(Hb、血红蛋白A % (HbA)、直接抗球蛋白试验[DAT]、LDH、总胆红素、血红蛋白尿和网状红细胞计数)和临床资料(入院诊断、感染、治疗方案)。采用GraphPad软件(GraphPad, Boston, MA, USA),采用双尾学生t检验评估Hb的比例。未对缺失数据进行补全,p值小于0.05为统计学显著性。我们在研究期间共确定了10例诊断为HHS的患者,并在表1中描述了每位患者的临床特征,在表S1中描述了每位患者的实验室特征。表S2总结了研究队列的临床特征。免疫血液学结果各不相同,2例患者DAT阳性。患者2为输血前和输血后DAT阳性(多特异性和免疫球蛋白G (IgG)),洗脱液为阴性,而患者7为输血前和输血后DAT阳性(多特异性和IgG),温自身抗体洗脱液为阳性。3例患者(1、6和7)既往和当前抗体筛查均为阳性,高溶血后未产生新抗体。患者8在分娩过程中输血10单位红细胞前有抗e、抗fya和抗jkb抗体,随后出现抗c、抗k、抗s和温热自身抗体等抗体。高溶血诊断后的中位停留时间为9天(四分位数间距(IQR) 6-11)。两例患者(患者4和患者6)在治疗后死亡,在年龄、性别、从输血到高溶血的时间、抗体的存在、红细胞输血类型或住院时间方面无显著差异。有报告表明,严重急性呼吸综合征冠状病毒2 (SARS-CoV-2)感染或疫苗接种与溶血并发症恶化之间存在关联。3例患者在高溶血1个月内确诊为SARS-CoV-2感染或免疫接种。患者1在输血前3周接种了疫苗,而患者4和患者9在输血后1周内检测出SARS-CoV-2阳性。未观察到感染或接种疫苗与存活之间的关联。表2总结了前10天的Hb水平和Hb比值(Hb值除以前一天的Hb值)。高溶血诊断时的Hb水平在幸存者和非幸存者之间似乎没有显着差异(中位数5.8 vs 5.3 g/dL)。然而,前3天的Hb比值在生存组和非生存组之间差异有统计学意义(0.94±0.16比0.73±0.15,p = 0.03)。对于该病例系列,Hb比值≤0.8或每日Hb绝对下降≥1.5 g/dL识别非幸存者的敏感性为100%,特异性为75%,约登指数为0.75。 4例患者(患者1、4、6和10)经历了Hb快速下降,定义为Hb比值为0.8或绝对每日Hb下降≥1.5 g/dL(表2中粗体)。患者1在Hb快速下降当天开始使用达贝泊汀和埃曲单抗,随后恢复。患者4在Hb快速下降当天开始Eculizumab治疗,但患者持续出现Hb下降并死亡。患者6在Hb快速下降当天仅接受类固醇和静脉注射免疫球蛋白(IVIG)。患者10在Hb快速下降当天开始接受达贝泊汀治疗,并从高溶血中恢复,尽管临床过程中因脂肪栓塞引起的栓塞性脑卒中而复杂化。单个患者的Hb和LDH趋势,以及所使用的治疗方法,总结在图S1中。一些研究报道了针对免疫途径的单克隆抗体在严重或顽固性高溶血病例中的疗效,并可作为有用的辅助治疗。12,13然而,何时考虑这些二线治疗的标准并不存在。该研究比较了幸存者和非幸存者之间的实验室和临床数据,发现Hb早期快速下降是预后不良的潜在标志,这可以帮助识别高危患者,这些患者可能受益于早期给予高溶血二线治疗,包括促红细胞生成素模拟剂和单克隆抗体治疗。使用羟脲(羟基脲)和克里赞单抗等疾病调节剂进行预处理,或使用利妥昔单抗、eculizumab或托珠单抗等HHS治疗,与生存率没有明确的关联。其中3名患者在输血后1个月内感染了SARS-CoV-2或接种了疫苗,患者4的住院过程先前在已发表的病例报告中有描述在接种SARS-CoV-2疫苗后,SARS-CoV-2在加速红细胞循环14或增加促炎细胞因子分泌15中的潜在作用提出了SARS-CoV-2可能作为高溶血发作的触发因素的可能性。然而,目前尚不清楚高溶血患者与普通人群之间的SARS-CoV-2疫苗接种或感染率是否存在差异。进一步研究SARS-CoV-2作为高溶血发作触发因素的作用可能是值得的。虽然该病例系列是关注高溶血的较大病例系列之一,由10例患者组成,但患者数量可能不足以确定高危患者的绝对Hb下降或Hb比率。我们还注意到患者之间临床管理的显著差异,这使治疗方案效果的分析变得复杂。涉及多个机构的更大患者群体的进一步研究可以更准确地完善所提出的阈值,从而实现有针对性的早期使用二线治疗。没有资金报告。Jaehyup Kim负责研究的概念化、研究设计、数据收集、数据分析和论文撰写。詹姆斯·d·伯纳负责撰写手稿。克里斯托弗·韦伯(Christopher Webb)负责数据收集和手稿撰写。Ravi Sarode负责手稿的撰写。布莱恩·d·阿德金斯(Brian D. Adkins)负责撰写手稿。Margaret Kypreos负责手稿的撰写。易卜拉欣·f·易卜拉欣负责手稿写作。手稿由沈玉民负责撰写。Sean G. Yates负责研究的概念化、研究设计、数据收集、数据分析和手稿撰写。作者没有需要披露的利益冲突。数据可应要求提供。
{"title":"Clinical and haematological features of hyperhaemolysis in sickle cell disease: A case series from two tertiary care centres","authors":"Jaehyup Kim, James D. Burner, Christopher Webb, Ravi Sarode, Brian D. Adkins, Margaret Kypreos, Ibrahim F. Ibrahim, Yu-Min Shen, Sean G. Yates","doi":"10.1111/bjh.70191","DOIUrl":"10.1111/bjh.70191","url":null,"abstract":"<p>To the Editor,</p><p>Patients with sickle cell disease (SCD; including sickle cell anemia [HbSS] and related genotypes such as HbSC and HbSβ-thalassemia) frequently require chronic RBC transfusions and are at high risk of delayed haemolytic transfusion reactions (DHTR). Although partial antigen matching has become standard practice to reduce alloimmunization rates in SCD patients, DHTR remains common due to several factors, including genotypic differences in RBCs between donor blood and recipients.<span><sup>1-4</sup></span> DHTR risk in SCD patients is reported to range from 1% to 19%,<span><sup>5</sup></span> significantly higher than that of the general population, which is estimated to range from 1 in 1000 to 1 in 10 000.<span><sup>6, 7</sup></span></p><p>A subset of SCD patients develops an exaggerated DHTR response known as hyperhaemolysis syndrome (HHS). This condition is thought to be caused by immune-mediated haemolysis of both bystander autologous red blood cells (RBCs)<span><sup>8</sup></span> and allogeneic transfused RBCs.<span><sup>9</sup></span> Here, we describe the clinical and haematological characteristics of 10 SCD patients diagnosed with HHS at our institution. Additionally, we assess how interventions, including targeted monoclonal antibody therapies, affect outcomes. To our knowledge, this is the largest single-centre case series of HHS in SCD reported to date.</p><p>This retrospective cohort study was conducted at the University of Texas Southwestern Medical Center Clements University Hospital and Parkland Memorial Hospital, both tertiary care hospitals, in Dallas, Texas, from 2020 to 2025. The study was approved by the University of Texas Southwestern Medical Center institutional review board (STU-2020-0068). Hyperhaemolysis was defined as a decline in haemoglobin (Hb) values below pre-transfusion levels following the transfusion of red blood cells, accompanied by laboratory markers consistent with haemolysis (e.g. lactate dehydrogenase [LDH], bilirubin). Demographic data (age, gender, type of haemoglobinopathy and blood type), laboratory findings (Hb, % hemoglobin A (HbA), direct antiglobulin test [DAT], LDH, total bilirubin, haemoglobinuria and reticulocyte count) and clinical information (admission diagnosis, infection, treatment regimen) were collected through a retrospective chart review. The ratio of Hb was evaluated by two-tailed Student's <i>t</i>-test using GraphPad Software (GraphPad, Boston, MA, USA). No imputation was performed for missing data, and statistical significance was defined as a <i>p</i>-value less than 0.05.</p><p>We identified a total of 10 patients diagnosed with HHS during the study period and described clinical features in Table 1, and laboratory characteristics in Table S1 for each patient. Table S2 summarizes the clinical characteristics of the study cohort. Immunohaematology findings varied, with two patients having a positive DAT. Patient 2 displayed pre- and post-transfusion DAT positi","PeriodicalId":135,"journal":{"name":"British Journal of Haematology","volume":"207 6","pages":"2643-2647"},"PeriodicalIF":3.8,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/bjh.70191","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145231213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Li Wang, Jinjin Wang, Yutong Wang, Ting Niu, Ailin Zhao
Disulfidptosis is a newly recognized cell death induced by disulphide stress under glucose deprivation. However, its clinical implications in multiple myeloma (MM) remain largely unexplored. We identified disulfidptosis-related genes via co-expression analysis and developed a risk signature through univariate Cox, least absolute shrinkage and selection operator (LASSO) regression and multivariate Cox regression analyses. The model was internally and externally validated for overall survival prediction. Downstream analyses included functional enrichment, tumour mutation burden (TMB), tumour microenvironment (TME) characterization and immune-metabolic profiling. Preliminary in vitro validation was conducted with PLEC-knockout KMS-11 cells under glucose deprivation. A nine-gene signature was established and validated, showing robust prognostic performance across cohorts. High-risk patients displayed proliferative profiles, higher TMB, an immunosuppressive TME with neutrophils, eosinophils and exhausted T cells and activation of glycolysis and cystine/glutathione metabolism. This signature defines an aggressive MM subtype likely unresponsive to immune checkpoint therapy. Functional assays confirmed that PLEC mediates actin disulphide cross-linking during metabolic stress. We present a novel disulfidptosis-related gene signature with independent prognostic value in MM, offering insights into the molecular and immune landscape of MM and serving as a useful tool for risk stratification and therapeutic suggestion.
{"title":"A disulfidptosis-related gene signature predicts prognosis and immune-metabolic landscape in multiple myeloma","authors":"Li Wang, Jinjin Wang, Yutong Wang, Ting Niu, Ailin Zhao","doi":"10.1111/bjh.70189","DOIUrl":"10.1111/bjh.70189","url":null,"abstract":"<p>Disulfidptosis is a newly recognized cell death induced by disulphide stress under glucose deprivation. However, its clinical implications in multiple myeloma (MM) remain largely unexplored. We identified disulfidptosis-related genes via co-expression analysis and developed a risk signature through univariate Cox, least absolute shrinkage and selection operator (LASSO) regression and multivariate Cox regression analyses. The model was internally and externally validated for overall survival prediction. Downstream analyses included functional enrichment, tumour mutation burden (TMB), tumour microenvironment (TME) characterization and immune-metabolic profiling. Preliminary in vitro validation was conducted with <i>PLEC</i>-knockout KMS-11 cells under glucose deprivation. A nine-gene signature was established and validated, showing robust prognostic performance across cohorts. High-risk patients displayed proliferative profiles, higher TMB, an immunosuppressive TME with neutrophils, eosinophils and exhausted T cells and activation of glycolysis and cystine/glutathione metabolism. This signature defines an aggressive MM subtype likely unresponsive to immune checkpoint therapy. Functional assays confirmed that PLEC mediates actin disulphide cross-linking during metabolic stress. We present a novel disulfidptosis-related gene signature with independent prognostic value in MM, offering insights into the molecular and immune landscape of MM and serving as a useful tool for risk stratification and therapeutic suggestion.</p>","PeriodicalId":135,"journal":{"name":"British Journal of Haematology","volume":"207 6","pages":"2391-2403"},"PeriodicalIF":3.8,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/bjh.70189","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145237536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}