Studies assessing the role of KIR-ligand mismatch in cord blood transplantation
Reference . | Willemze 200928 . | Brunstein 200994 . | Tanaka 201392 . | Garfall 201391 . | Rocha 201693 . | Sekine 201697 . | |
---|---|---|---|---|---|---|---|
No. of patients | 218 | 155 | 102 | 357 AML) | 80 | 199 | 204 |
Conditioning (%) | MA (83) | MA (100) | RIC (100) | MA (62) | MA (27) | MA (100) | MA (72) |
ATG/ALG (%) | 82 | 40 | 28 | 0 | 100 | 70 | 100 |
Single-CBT (%) | 100 | 61 | 100 | 100 | 0 | 0 | — |
KIR-ligand mismatched (GvH direction) (%) | 32 | 26 | 32 | 81 | 44 | 43 | HLA C1/x patients who receive CB unit with HLA-C1-KIR2DL2, KIR2DL3, or KIR2DS2 vs all other |
aGVHD (2-4) | NS | NS | Higher in KIR-ligand mismatch | NS | NS | NS | NS |
Risk | 79% vs 57% | ||||||
95% CI | 59%-99% vs 44%-70% | ||||||
P | .01 | ||||||
TRM | NS | NS | Higher in KIR-ligand mismatch | NS | — | NS | NS |
Risk | 27% vs 12% at 2 years | ||||||
95% CI | 12%-42% vs 5%-19% | ||||||
P | .03 | ||||||
Relapse | Lower in KIR-ligand mismatch | NS | NS | NS | NS | NS | Lower in HLA-C1/x recipients who received an HLA-C1-KIR2DL2, KIR2DL3, or KIR2DS2 CB unit |
Risk | RR, 0.53 | HR, 0.04 | |||||
95% CI | 0.28-0.99 | 1.57-31.47 | |||||
P | .05 | .002 | |||||
OS | Higher in KIR-ligand mismatch | NS | Lower in KIR-ligand mismatch | NS | NS | NS | Higher in HLA-C1/x recipients who received an HLA-C1-KIR2DL2, KIR2DL3, or KIR2DS2 CB unit |
Risk | RR, 2 | 32% vs 52% at 3 years | HR, 3.46 | ||||
95% CI | 1.24-3.22 | 15%-59% vs 47%-67% | 1.46-8.20 | ||||
P | .004 | .03 | .005 |
Reference . | Willemze 200928 . | Brunstein 200994 . | Tanaka 201392 . | Garfall 201391 . | Rocha 201693 . | Sekine 201697 . | |
---|---|---|---|---|---|---|---|
No. of patients | 218 | 155 | 102 | 357 AML) | 80 | 199 | 204 |
Conditioning (%) | MA (83) | MA (100) | RIC (100) | MA (62) | MA (27) | MA (100) | MA (72) |
ATG/ALG (%) | 82 | 40 | 28 | 0 | 100 | 70 | 100 |
Single-CBT (%) | 100 | 61 | 100 | 100 | 0 | 0 | — |
KIR-ligand mismatched (GvH direction) (%) | 32 | 26 | 32 | 81 | 44 | 43 | HLA C1/x patients who receive CB unit with HLA-C1-KIR2DL2, KIR2DL3, or KIR2DS2 vs all other |
aGVHD (2-4) | NS | NS | Higher in KIR-ligand mismatch | NS | NS | NS | NS |
Risk | 79% vs 57% | ||||||
95% CI | 59%-99% vs 44%-70% | ||||||
P | .01 | ||||||
TRM | NS | NS | Higher in KIR-ligand mismatch | NS | — | NS | NS |
Risk | 27% vs 12% at 2 years | ||||||
95% CI | 12%-42% vs 5%-19% | ||||||
P | .03 | ||||||
Relapse | Lower in KIR-ligand mismatch | NS | NS | NS | NS | NS | Lower in HLA-C1/x recipients who received an HLA-C1-KIR2DL2, KIR2DL3, or KIR2DS2 CB unit |
Risk | RR, 0.53 | HR, 0.04 | |||||
95% CI | 0.28-0.99 | 1.57-31.47 | |||||
P | .05 | .002 | |||||
OS | Higher in KIR-ligand mismatch | NS | Lower in KIR-ligand mismatch | NS | NS | NS | Higher in HLA-C1/x recipients who received an HLA-C1-KIR2DL2, KIR2DL3, or KIR2DS2 CB unit |
Risk | RR, 2 | 32% vs 52% at 3 years | HR, 3.46 | ||||
95% CI | 1.24-3.22 | 15%-59% vs 47%-67% | 1.46-8.20 | ||||
P | .004 | .03 | .005 |
ALG, anti-lymphocyte globulin; CB, cord blood; MA, myeloablative; RIC, reduced-intensity conditioning; TRM, treatment-related mortality.