Table 2.

Summary of studies with PTCY

Bolanos-Meads et al12 Luznik et al13 Holtan et al14 Broers et al15 This study
(BMT CTN 1203)(BMT CTN 1301)(BMT CTN 1703)(HOVON-96)(Real world)
Type of study Randomized phase 2 Randomized phase 3 Randomized phase 3 Randomized phase 3 Retrospective 
Transplant period 2014-2016 2015-2018 2019-2021 2013-2018 2018-2021 
Graft source PBSC BM PBSC PBSC PBSC 
Conditioning intensity RIC MAC RIC NMA MAC, RIC 
Conditioning regimen Flu/Bu2, Flu/Cy, Flu/Mel, Bu/Cy, Flu/Bu4, Flu/Mel (57%), Flu/Bu2 (27%), Flu/Cy/TBI for PTCA/CsA Flu/Bu4 for MAC (80%) 
 Flu/Cy/TBI Cy/TBI, TBI/Etoposide Flu/Cy/TBI (14%)  Flu/Bu2 for RIC (77%) 
Donor type 7/8-8/8 MUD, MRD 8/8 MUD, MRD 7/8-8/8 MUD, MRD 8/8 MUD, MRD 7/8-8/8 MUD 
Study arm TAC/MTX PTCY/TAC/MMF TAC/MTX PTCY TAC/MTX PTCY/TAC/MMF CsA/MPA PTCY/CsA TAC based PTCY/TAC/MMF 
Sample size 224 92 114 109 212 208 52 99 463 107 
Clinical outcome           
Grade 2-4 aGVHD 6 mo: 30% 6 mo: 27% D100: 29.8% D100: 37.6% D100: 51.9% D100: 53.8% 6 mo: 48% 6 mo: 30%  6 mo: 20% 6 mo: 20% 
Grade 3-4 aGVHD 6 mo: 13% 6 mo: 2%  D100: 3.5% D100: 10.1% D100: 14.7% D100: 6.3%  6 mo: 12% 6 mo: 6% 6 mo: 8.6% 6 mo: 7.5% 
cGVHD 1 y: 38% 1 y: 28%   1 y: 35.1% 1 y: 21.9%  2 y: 65% 2 y: 43%  2 y: 58% 2 y: 32%  
Mod-severe cGVHD   2 y: 33.7% 2 y: 27% 1 y: 15.6% 1 y: 6.7%    2 y: 36% 2 y: 12%  
IS-requring cGVHD 1 y: 37% 1 y: 22%    1 y: 25% 1 y: 12.5%      
Extensive cGVHD       2 y: 48% 2 y: 16%    
NRM 1 y: 16% 1 y: 11% 2 y: 7.9% 2 y: 15.7% 1 y: 17.2% 1 y: 12.3% 3 y: 14% 3 y: 10% 2 y: 12% 2 y: 11% 
Relapse 1 y: 25% 1 y: 28% 2 y: 25.6% 2 y: 13.9%  1 y: 20.2% 1 y: 20.8% 3 y: 24% 3 y: 32% 2 y: 34% 2 y: 25%  
PFS 1 y: 56% 1 y: 60% 2 y: 66.5% 2 y: 70.3% 1 y: 62.4% 1 y: 67% 3 y: 63% 3 y: 59% 2 y: 54% 2 y: 64%  
OS 1 y: 71% 1 y: 71% 2 y: 76.1% 2 y: 76.2% 1 y: 72.2% 1 y: 77% 3 y: 71% 3 y: 65% 2 y: 62% 2 y: 66% 
Bolanos-Meads et al12 Luznik et al13 Holtan et al14 Broers et al15 This study
(BMT CTN 1203)(BMT CTN 1301)(BMT CTN 1703)(HOVON-96)(Real world)
Type of study Randomized phase 2 Randomized phase 3 Randomized phase 3 Randomized phase 3 Retrospective 
Transplant period 2014-2016 2015-2018 2019-2021 2013-2018 2018-2021 
Graft source PBSC BM PBSC PBSC PBSC 
Conditioning intensity RIC MAC RIC NMA MAC, RIC 
Conditioning regimen Flu/Bu2, Flu/Cy, Flu/Mel, Bu/Cy, Flu/Bu4, Flu/Mel (57%), Flu/Bu2 (27%), Flu/Cy/TBI for PTCA/CsA Flu/Bu4 for MAC (80%) 
 Flu/Cy/TBI Cy/TBI, TBI/Etoposide Flu/Cy/TBI (14%)  Flu/Bu2 for RIC (77%) 
Donor type 7/8-8/8 MUD, MRD 8/8 MUD, MRD 7/8-8/8 MUD, MRD 8/8 MUD, MRD 7/8-8/8 MUD 
Study arm TAC/MTX PTCY/TAC/MMF TAC/MTX PTCY TAC/MTX PTCY/TAC/MMF CsA/MPA PTCY/CsA TAC based PTCY/TAC/MMF 
Sample size 224 92 114 109 212 208 52 99 463 107 
Clinical outcome           
Grade 2-4 aGVHD 6 mo: 30% 6 mo: 27% D100: 29.8% D100: 37.6% D100: 51.9% D100: 53.8% 6 mo: 48% 6 mo: 30%  6 mo: 20% 6 mo: 20% 
Grade 3-4 aGVHD 6 mo: 13% 6 mo: 2%  D100: 3.5% D100: 10.1% D100: 14.7% D100: 6.3%  6 mo: 12% 6 mo: 6% 6 mo: 8.6% 6 mo: 7.5% 
cGVHD 1 y: 38% 1 y: 28%   1 y: 35.1% 1 y: 21.9%  2 y: 65% 2 y: 43%  2 y: 58% 2 y: 32%  
Mod-severe cGVHD   2 y: 33.7% 2 y: 27% 1 y: 15.6% 1 y: 6.7%    2 y: 36% 2 y: 12%  
IS-requring cGVHD 1 y: 37% 1 y: 22%    1 y: 25% 1 y: 12.5%      
Extensive cGVHD       2 y: 48% 2 y: 16%    
NRM 1 y: 16% 1 y: 11% 2 y: 7.9% 2 y: 15.7% 1 y: 17.2% 1 y: 12.3% 3 y: 14% 3 y: 10% 2 y: 12% 2 y: 11% 
Relapse 1 y: 25% 1 y: 28% 2 y: 25.6% 2 y: 13.9%  1 y: 20.2% 1 y: 20.8% 3 y: 24% 3 y: 32% 2 y: 34% 2 y: 25%  
PFS 1 y: 56% 1 y: 60% 2 y: 66.5% 2 y: 70.3% 1 y: 62.4% 1 y: 67% 3 y: 63% 3 y: 59% 2 y: 54% 2 y: 64%  
OS 1 y: 71% 1 y: 71% 2 y: 76.1% 2 y: 76.2% 1 y: 72.2% 1 y: 77% 3 y: 71% 3 y: 65% 2 y: 62% 2 y: 66% 

aGVHD, acute GVHD; BM, bone marrow; cGVHD, chronic GVHD; CsA, cyclosporine A; mod-severe cGVHD, moderate-to-severe cGVHD; MPA, mycophenolic acid; IS-requiring cGVHD, chronic GVHD requiring systemic immunosuppressive treatment.

P < .05, significantly different for the comparison between the PTCY arm and the control arm (TAC/MTX, CsA/MPA, or TAC based).

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