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. 2025 Jun;60(6):832-840.
doi: 10.1038/s41409-025-02562-w. Epub 2025 Apr 8.

GvHD prophylaxis with tacrolimus, sirolimus, and mycophenolate mofetil after reduced intensity conditioning hematopoietic stem cell allogeneic transplantation

Affiliations

GvHD prophylaxis with tacrolimus, sirolimus, and mycophenolate mofetil after reduced intensity conditioning hematopoietic stem cell allogeneic transplantation

L Lopez-Corral et al. Bone Marrow Transplant. 2025 Jun.

Abstract

We present the largest prospective real-world experience in 159 patients who received the triple combination of tacrolimus/sirolimus/mycophenolate mofetil after reduced intensity conditioning allogeneic hematopoietic stem cell transplantation (RIC-alloHSCT) from matched-related (MRD), matched-unrelated (MUD) or mismatched-unrelated donors (MMURD). Despite the high-risk and elderly population, non-relapse mortality (NRM) at day +100 and 1 year was 5.1% and 8.6%. Grades 2-4 and 3-4 acute Graft-versus-host disease (GvHD) at day +180 was 30.3% and 13%, respectively. Chronic GvHD at 1 and 3 years was 23.2% and 41% and for moderate/severe was 13.2% and 26.6%, respectively. With a median follow-up of 20 months, the 1- and 3-year progression-free survival was 60% and 49%, the GvHD-free relapse-free survival was 44% and 32%, and the overall survival was 70.3% and 61%, respectively, for the entire cohort. Patients receiving allo-HSCT from MMURD showed a higher incidence of aGvHD with impact on survival endpoints. GvHD prophylaxis with the triple-drug combination tacrolimus/sirolimus/mycophenolate mofetil showed excellent results in terms of NRM, GvHD and survival in a high-risk, frail and elderly population in the context of RIC-HSCT from MRD and MUD. The subgroup of patients receiving RIC-HSCT from MMURD might probably benefit from other prophylaxis strategies.

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Conflict of interest statement

Competing interests: The authors declare no competing interests.

Figures

Fig. 1
Fig. 1. Cumulative incidence of Graft-versus-Host Disease (GvHD).
a Cumulative incidence of grade 2 to 4 at day +180. b Cumulative incidence of grade 3-4 acute GVHD at day +180. c Cumulative incidence of overall chronic GvHD at 3 years. d Cumulative incidence of moderate-to-severe chronic GvHD at 3 years.
Fig. 2
Fig. 2. Cumulative incidence of non-relapse mortality (NRM).
Cumulative incidence of NRM at 3 years.
Fig. 3
Fig. 3. Survival outcomes: progression-free survival (PFS), GvHD-free, relapse-free survival (GRFS), and overall survival (OS).
a Kaplan-Meier estimate of PFS. b Kaplan-Meier estimate of GRFS c Kaplan-Meier estimate of OS.

References

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