Table 3 Risk factors for post-transplant SOS

From: Inotuzumab ozogamicin in pediatric patients with relapsed/refractory acute lymphoblastic leukemia

Risk factor

SOS (N = 11)

No SOS (N = 10)

Median age in years (range)

12 (2–19)

12.5 (7–19)

Median doses of InO (range)

6 (3–12)

4.5 (3–6)

Median days from InO to HSCT (range)

25 (13–91)

30 (13–89)

One or more HSCT prior to InO

6 (55%)

3 (30%)

Dual alkylator conditioning

6 (44%)

7 (54%)a

Busulfan containing conditioning

5 (45%)

1 (11%)a

Clofarabine containing conditioning

3 (27%)

1 (11%)a

TBI conditioning

9 (82%)

6 (60%)a

  1. aConditioning regimen was unknown for one patient