Mohan Meera, Szabo Aniko, Cheruvalath Heloise, Clennon Anna, Bhatlapenumarthi Vineel, Patwari Anannya, Balev Metodi, Bhutani Divaya, Shrestha Asis, Thanendrarajan Sharmilan, Dhakal Binod, Zangari Maurizio, Trikannad Anup, Vellanki Sruthi, Al-Hadidi Samer, Lentzsch Suzanne, van Rhee Frits, Bag Aishee, D'Souza Anita, Shah Nishi, Chakraborty Rajshekhar, Shah Mansi R, Schinke Carolina
Division of Hematology/Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.
Division of Biostatistics, Data Science Institute, Medical College of Wisconsin, Milwaukee, WI, USA.
Blood Cancer J. 2025 Apr 23;15(1):74. doi: 10.1038/s41408-025-01282-0.
The main objective of this multi-institutional study is to understand the effect of primary intravenous immunoglobulin (IVIG) replacement on clinical outcomes in recipients of BCMA-directed bispecific antibody (bsAb), where infection remains an important cause of morbidity and mortality. This is a retrospective study of patients treated with either standard of care teclistamab or BCMA-directed investigational bsAb between Nov 2017 and Dec 2023. Primary IVIG prophylaxis was defined as starting IVIG prior to first documented infection. All analyses were adjusted for immortal-time bias inherent in this grouping. A total of 225 patients were included in this analysis. Primary IVIG prophylaxis was defined as starting IVIG prior to first documented infection. The median follow-up of patients treated with and without primary IVIG prophylaxis was, 9 and 11 months, respectively. The cumulative incidence of all grade infections at 12 months with and without primary IVIG prophylaxis were 56% (95%CI 40%,78%) and 60% (95% CI 48%, 76%); p = 0.72, respectively. The 12-month cumulative incidence of ≥ grade 3 infections was 35% (95% CI 21%, 57%) with primary IVIG prophylaxis and 45% (95% CI 34%, 60%) without; p = 0.37. The median infection free survival (IFS) for all-grade infections was 7.7 (95% CI 3.3, 14) months with primary IVIG prophylaxis and 3 (95% CI 2.6, 4.5) months without (p = 0.021). The median ≥ grade 3 IFS was 14 (95% CI 8.8, NR) and 7.5 (95% CI 6.1, 14) months, with and without primary IVIG respectively; p = 0.022. Patients on primary IVIG prophylaxis had a superior progression-free-survival (PFS) [median PFS 15 vs 8 months; p = 0.026] and overall-survival (OS) [median OS 16 vs 44 months; p = 0.007]. On multivariate analysis, primary IVIG prophylaxis was independently associated with improved OS (HR = 0.37; p = 0.021), while the presence of extra-medullary (HR = 2.71; p = <0.001) and high-risk disease (HR = 1.88; p = 0.031) conferred poor outcomes. In recipients of BCMA-directed bsAb, IVIG supplementation was associated with an improved clinical outcome, including favorable IFS and OS.
这项多机构研究的主要目的是了解原发性静脉注射免疫球蛋白(IVIG)替代疗法对接受靶向BCMA双特异性抗体(bsAb)治疗的患者临床结局的影响,在这些患者中,感染仍然是发病和死亡的重要原因。这是一项对2017年11月至2023年12月期间接受标准治疗替雷利珠单抗或靶向BCMA的研究性bsAb治疗的患者进行的回顾性研究。原发性IVIG预防定义为在首次记录感染之前开始使用IVIG。所有分析均针对该分组中固有的不朽时间偏倚进行了调整。本分析共纳入225例患者。原发性IVIG预防定义为在首次记录感染之前开始使用IVIG。接受和未接受原发性IVIG预防治疗的患者的中位随访时间分别为9个月和11个月。接受和未接受原发性IVIG预防治疗的患者在12个月时所有级别感染的累积发生率分别为56%(95%CI 40%,78%)和60%(95%CI 48%,76%);p = 0.72。接受原发性IVIG预防治疗的患者≥3级感染的12个月累积发生率为35%(95%CI 21%,57%),未接受预防治疗的为45%(95%CI 34%,60%);p = 0.37。接受原发性IVIG预防治疗的患者所有级别感染的中位无感染生存期(IFS)为7.7(95%CI 3.3,14)个月,未接受预防治疗的为3(95%CI 2.6,4.5)个月(p = 0.021)。≥3级IFS的中位时间分别为14(95%CI 8.8,NR)个月和7.5(95%CI 6.1,14)个月,分别为接受和未接受原发性IVIG预防治疗的患者;p = 0.022。接受原发性IVIG预防治疗的患者具有更好的无进展生存期(PFS)[中位PFS 15个月对8个月;p = 0.026]和总生存期(OS)[中位OS 16个月对44个月;p = 0.007]。在多变量分析中,原发性IVIG预防与改善的OS独立相关(HR = 0.37;p = 0.021),而髓外病变(HR = 2.71;p = <0.001)和高危疾病(HR = 1.88;p = 0.031)的存在则预示着不良结局。在接受靶向BCMA的bsAb治疗的患者中,补充IVIG与改善的临床结局相关,包括良好的IFS和OS。