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Table 2 Transplant outcomes between patients who underwent Haplo-SCT and those who received MSDT

From: Haploidentical donor is preferred over matched sibling donor for pre-transplantation MRD positive ALL: a phase 3 genetically randomized study

Parameter

Haplo-SCT group (n = 169)

MSDT group (n = 39)

P value

Median time of neutrophil engraftment (range)

13 days (10–25 days)

15 days (9–22 days)

0.016

Platelet engraftment at day 100 post-transplantation

95% (95% CI, 92–98%)

100%

< 0.001

CMV reactivation at day 100 post-transplantation

68% (95% CI, 61–75%)

18% (95% CI, 6–30%)

< 0.001

EBV reactivation at day 100 post-transplantation

15% (95% CI, 10–21%)

0

0.011

Grades II–IV acute GVHD

21% (95% CI, 17–27%)

23% (95% CI, 10–36%)

0.884

Total chronic GVHD

44% (95% CI, 36–52%)

48% (95% CI, 31–65%)

0.850

Moderate-to-severe chronic GVHD

18% (95% CI, 10–26%)

27% (95% CI, 10–44%)

0.192

Cumulative incidence of positive MRD after transplantation

26% (95% CI, 19–33%)

44% (95% CI, 28–60%)

0.043

Three-year probability of relapse

23% (95% CI, 17–29%)

47% (95% CI, 31–63%)

0.006

Three-year probability of NRM

11% (95% CI, 6–16%)

10% (95% CI, 1–19%)

0.845

Three-year probability of LFS

65% (95% CI, 58–72%)

43% (95% CI, 27–59%)

0.023

Three-year probability of OS

68% (95% CI, 61–75%)

46% (95% CI, 30–62%)

0.039

Three-year probability of GRFS

54% (95% CI, 46–62%)

36% (95% CI, 21–51%)

0.055

  1. Haplo-SCT haploidentical stem cell transplantation, MSDT human leukocyte antigen-matched sibling donor transplantation, CI confidence interval, GVHD graft-versus-host disease, MRD measurable residual disease, NRM non-relapse mortality, LFS leukemia-free survival, OS overall survival