Effects and Predictive Factors of Immunosuppressive Therapy Combined with Umbilical Cord Blood Infusion in Patients with Severe Aplastic Anemia

摘要

Purpose To investigate the efficacy and safety of umbilical cord blood (UCB) infusion (UCBI) plus immunosuppressive therapy (IST) treatment in comparison to IST treatment, as well as predictive factors for clinical responses, in severe aplastic anemia (SAA) patients. Materials and Methods Totally, 93 patients with SAA were enrolled in this cohort study. In the IST group, rabbit antithymocyte globulin (r-ATG) combined with cyclosporine A (CsA) was administered, while in the IST+UBCI group, r-ATG, CsA, and UCB were used. Results After 6 months of treatment, UCBI+IST achieved a higher complete response (CR) rate ( p =0.002) and an elevated overall response rate (ORR) ( p =0.004), compared to IST. Regarding hematopoietic recovery at month 6, platelet responses in the UCBI+IST group were better than those in the IST group ( p =0.002), and UCBI+IST treatment facilitated increasing trends in absolute neutrophil count (ANC) response ( p =0.056). Kaplan-Meier curves illuminated UCBI+IST achieved faster ANC response ( p Conclusion UCBI+IST achieved better clinical responses and hematopoietic recovery than IST, and was well tolerated in SAA patients.