Outcomes with low dose anti-thymocyte globulin based graft versus host disease prophylaxis after mismatched unrelated donor allogeneic hematopoietic cell transplantation

IF 2.3 3区 医学 Q2 HEMATOLOGY
Hafsah Chalchal, Vinita Dhir, Ashish Masurekar, Harold Atkins, Christopher Bredeson, Michael Kennah, Natasha Kekre, David Allan, Ram Vasudevan Nampoothiri
{"title":"Outcomes with low dose anti-thymocyte globulin based graft versus host disease prophylaxis after mismatched unrelated donor allogeneic hematopoietic cell transplantation","authors":"Hafsah Chalchal,&nbsp;Vinita Dhir,&nbsp;Ashish Masurekar,&nbsp;Harold Atkins,&nbsp;Christopher Bredeson,&nbsp;Michael Kennah,&nbsp;Natasha Kekre,&nbsp;David Allan,&nbsp;Ram Vasudevan Nampoothiri","doi":"10.1111/ejh.14274","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Background</h3>\n \n <p>Anti-thymocyte globulin (ATG) based graft versus host disease (GVHD) prophylaxis is widely used for mismatched unrelated donor allogeneic hematopoietic cell transplantation (HCT) although optimal dose remains unclear. Although recent literature suggested improved outcomes with PTCy-based regimens when compared to ATG-based regimens these studies used doses of ATG ≥5 mg/kg. Thus, we analyzed outcomes of HLA 9/10 MMUD allogeneic HCTs using lower-dose ATG-based regimens at our center.</p>\n </section>\n \n <section>\n \n <h3> Methods</h3>\n \n <p>We retrospectively analyzed outcomes of HLA 9/10 MMUD allogeneic HCTs using lower dose ATG-based regimens for all adults undergoing allogeneic HCT at The Ottawa Hospital from 2015 to 2022. Data regarding demographics, conditioning regimen, dose of ATG, rates of GVHD, duration of remission, and survival, were collected and analyzed.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>Seventy-seven (<i>n</i> = 77) patients (males 62.3%; median age 50 years) underwent allogeneic HCT from MMUD. Majority(81%; <i>n</i> = 63) received 2.5 mg/kg of rabbit ATG and remaining 18.2% (<i>n</i> = 14) received 4.5 mg/kg. Grade II-IV acute GVHD occurred in 24.7% (<i>n</i> = 19) while any chronic GVHD occurred in 32.5% (<i>n</i> = 25) patients. After a median follow-up of 21 months, relapse occurred in 28.6% of patients. Two-year OS, GRFS, CIR, and NRM were 60.6%, 45.3%, 16.9%, and 18.2% respectively. Dose of ATG (2.5 mg/kg vs. 4.5 mg/kg) was not associated with outcomes in either univariate or multivariate analyses.</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>When compared to published studies using ATG doses ≥5 mg/kg, GVHD prophylaxis using lower dose ATG may potentially lead to improved outcomes in patients undergoing MMUD allogeneic HCT. Further studies are needed to directly compare lower dose ATG to PTCy-based regimens to determine ideal GVHD prophylaxis for these patients.</p>\n </section>\n </div>","PeriodicalId":11955,"journal":{"name":"European Journal of Haematology","volume":"113 4","pages":"543-549"},"PeriodicalIF":2.3000,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Journal of Haematology","FirstCategoryId":"3","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/ejh.14274","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"HEMATOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

Background

Anti-thymocyte globulin (ATG) based graft versus host disease (GVHD) prophylaxis is widely used for mismatched unrelated donor allogeneic hematopoietic cell transplantation (HCT) although optimal dose remains unclear. Although recent literature suggested improved outcomes with PTCy-based regimens when compared to ATG-based regimens these studies used doses of ATG ≥5 mg/kg. Thus, we analyzed outcomes of HLA 9/10 MMUD allogeneic HCTs using lower-dose ATG-based regimens at our center.

Methods

We retrospectively analyzed outcomes of HLA 9/10 MMUD allogeneic HCTs using lower dose ATG-based regimens for all adults undergoing allogeneic HCT at The Ottawa Hospital from 2015 to 2022. Data regarding demographics, conditioning regimen, dose of ATG, rates of GVHD, duration of remission, and survival, were collected and analyzed.

Results

Seventy-seven (n = 77) patients (males 62.3%; median age 50 years) underwent allogeneic HCT from MMUD. Majority(81%; n = 63) received 2.5 mg/kg of rabbit ATG and remaining 18.2% (n = 14) received 4.5 mg/kg. Grade II-IV acute GVHD occurred in 24.7% (n = 19) while any chronic GVHD occurred in 32.5% (n = 25) patients. After a median follow-up of 21 months, relapse occurred in 28.6% of patients. Two-year OS, GRFS, CIR, and NRM were 60.6%, 45.3%, 16.9%, and 18.2% respectively. Dose of ATG (2.5 mg/kg vs. 4.5 mg/kg) was not associated with outcomes in either univariate or multivariate analyses.

Conclusions

When compared to published studies using ATG doses ≥5 mg/kg, GVHD prophylaxis using lower dose ATG may potentially lead to improved outcomes in patients undergoing MMUD allogeneic HCT. Further studies are needed to directly compare lower dose ATG to PTCy-based regimens to determine ideal GVHD prophylaxis for these patients.

Abstract Image

错配非亲属捐献异体造血细胞移植后,使用低剂量抗胸腺细胞球蛋白预防移植物抗宿主疾病的效果。
背景:以抗胸腺细胞球蛋白(ATG)为基础的移植物抗宿主疾病(GVHD)预防措施被广泛用于错配非亲属供体异基因造血细胞移植(HCT),但最佳剂量仍不明确。尽管最近的文献表明,与基于ATG的方案相比,基于PTCy的方案治疗效果更好,但这些研究使用的ATG剂量≥5 mg/kg。因此,我们分析了本中心使用低剂量 ATG 方案的 HLA 9/10 MMUD 异基因 HCT 的疗效:我们回顾性分析了 2015 年至 2022 年期间渥太华医院所有接受异基因 HCT 的成人使用低剂量 ATG 方案进行 HLA 9/10 MMUD 异基因 HCT 的结果。收集并分析了有关人口统计学、调理方案、ATG剂量、GVHD发生率、缓解持续时间和存活率的数据:77名(n = 77)患者(男性占62.3%;中位年龄50岁)接受了MMUD异基因造血干细胞移植。大多数患者(81%;n = 63)接受了 2.5 mg/kg 的兔 ATG,其余 18.2% 的患者(n = 14)接受了 4.5 mg/kg。24.7%的患者(19人)发生了II-IV度急性GVHD,32.5%的患者(25人)发生了慢性GVHD。中位随访 21 个月后,28.6% 的患者复发。两年的OS、GRFS、CIR和NRM分别为60.6%、45.3%、16.9%和18.2%。在单变量或多变量分析中,ATG的剂量(2.5 mg/kg vs. 4.5 mg/kg)与结果无关:结论:与已发表的使用≥5 mg/kg剂量ATG的研究相比,使用低剂量ATG预防GVHD可能会改善接受MMUD异基因造血干细胞移植患者的预后。还需要进一步研究,将低剂量 ATG 与基于 PTCy 的方案进行直接比较,以确定这些患者理想的 GVHD 预防方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
5.50
自引率
0.00%
发文量
168
审稿时长
4-8 weeks
期刊介绍: European Journal of Haematology is an international journal for communication of basic and clinical research in haematology. The journal welcomes manuscripts on molecular, cellular and clinical research on diseases of the blood, vascular and lymphatic tissue, and on basic molecular and cellular research related to normal development and function of the blood, vascular and lymphatic tissue. The journal also welcomes reviews on clinical haematology and basic research, case reports, and clinical pictures.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信