关键词: Parenteral ascorbic acid allogeneic stem cell transplantation graft vs. host disease myeloid malignancy non-relapse mortality

来  源:   DOI:10.21203/rs.3.rs-3538792/v1   PDF(Pubmed)

Abstract:
Intravenous (IV) vitamin C improves organ function and reduces inflammation in sepsis, an inflammatory state like the post-hematopoietic stem cell transplant (HCT) milieu. The safety and efficacy of parenteral vitamin C after allogeneic HCT were evaluated in a phase I/II trial. Clinical outcomes were compared with a propensity score - matched historical control.
UNASSIGNED: Patients with advanced hematologic malignancies received IV vitamin C, 50mg/kg/d, divided into 3 doses given on days 1-14 after HCT, followed by 500 mg bid oral from day 15 until 6 months post-SCT.
UNASSIGNED: 55 patients received IV vitamin C. All patients were deficient in vitamin C at day 0. Vitamin C recipients had lower non-relapse mortality (NRM) (p = 0.07) and improved survival compared to historical controls (p=0.06), with no attributable grade 3 and 4 toxicities. Vitamin C recipients had similar relapse rate and acute graft versus host disease (GVHD) (p=0.35), but lower severe chronic GVHD (p=0.35). Patients with myeloid malignancies had improved survival (p=0.02) and NRM (p=0.009), as well as chronic GVHD, with similar relapse rates compared to controls.
UNASSIGNED: In patients undergoing allogeneic HCT the administration of IV vitamin C is safe and reduces non-relapse mortality and chronic GVHD improving overall survival.
摘要:
静脉(IV)维生素C可改善器官功能并减少败血症的炎症,如造血干细胞移植(HCT)后环境的炎症状态。在I/II期试验中评估了同种异体HCT后肠胃外维生素C的安全性和有效性。将临床结果与倾向评分匹配的历史对照进行比较。方法:晚期恶性血液病患者接受静脉注射维生素C,50mg/kg/d,在HCT后第1-14天分为3剂,然后从SCT后第15天至6个月口服500mgbid。结果55例患者接受IV维生素C。所有患者在第0天缺乏维生素C。与历史对照相比,维生素C受体的非复发死亡率(NRM)较低(p=0.07),生存率提高(p=0.06)。没有可归因的3级和4级毒性。维生素C受体有相似的复发率和急性移植物抗宿主病(GVHD)(p=0.35),但较低的严重慢性GVHD(p=0.35)。骨髓性恶性肿瘤患者的生存率(p=0.02)和NRM(p=0.009)均得到改善,以及慢性GVHD,与对照组相比,复发率相似。结论:在接受同种异体HCT的患者中,静脉注射维生素C是安全的,可降低非复发死亡率和慢性GVHD,从而改善总体生存率。
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