Table 2.

The main 1-year results of the company-sponsored trials that were considered for approval of 2GTKIs in the first-line setting by the FDA and the EMA

ENESTndDASISIONBFORE
ImatinibNilotinibImatinibDasatinibImatinibBosutinib
Daily dose, mg 400 × 1 300 × 2 400 × 1 100 × 1 400 × 1 400 × 1 
No. of patients 282 283 259 260 246 246 
Median age, y 46 47 49 46 53 52 
Low risk, % 37* 37* 33 33 39* 38* 
Intermediate risk, % 36* 36* 48 47 39* 31* 
High risk, % 28* 28* 19 19 21* 21* 
CCyR, by 1 y 69%; P < .001 80% 72%; P < .001 83% 66%; P < .007 77% 
MMR, at/by 1 y at 22%; P < .001 44% by 28%; P < .001 46% at 37%; P = .02 47% 
D/C, in 5 y 50% 40% 37% 39%   
MMR, by 5 y 60%; P < .0001 77% 66%; P = 0.0002 76%   
MR 4.0, by 5 y 42%; P < .0001 66% NR   
MR 4.5, by 5 y 31%; P < .0001 54% 33%; P = .02 42%   
PFS, 5-y 91% 92% 85% 86%   
OS, 5-y 92% 94% 90% 91%   
LRD, 5-y 6%; P = .02 2% NR   
ENESTndDASISIONBFORE
ImatinibNilotinibImatinibDasatinibImatinibBosutinib
Daily dose, mg 400 × 1 300 × 2 400 × 1 100 × 1 400 × 1 400 × 1 
No. of patients 282 283 259 260 246 246 
Median age, y 46 47 49 46 53 52 
Low risk, % 37* 37* 33 33 39* 38* 
Intermediate risk, % 36* 36* 48 47 39* 31* 
High risk, % 28* 28* 19 19 21* 21* 
CCyR, by 1 y 69%; P < .001 80% 72%; P < .001 83% 66%; P < .007 77% 
MMR, at/by 1 y at 22%; P < .001 44% by 28%; P < .001 46% at 37%; P = .02 47% 
D/C, in 5 y 50% 40% 37% 39%   
MMR, by 5 y 60%; P < .0001 77% 66%; P = 0.0002 76%   
MR 4.0, by 5 y 42%; P < .0001 66% NR   
MR 4.5, by 5 y 31%; P < .0001 54% 33%; P = .02 42%   
PFS, 5-y 91% 92% 85% 86%   
OS, 5-y 92% 94% 90% 91%   
LRD, 5-y 6%; P = .02 2% NR   

For ENESTnd11  and DASISION,12  also the follow-up results, at 5 years, are shown, confirming a higher rate and depth of molecular response, but showing no superiority in PFS and OS. From the ENESTnd study, a small but significant difference in leukemia-related deaths was also reported.

at, the proportion of patients with that response at 1 year; by, cumulative incidence of that response after 1 year or 5 years; CCyR, complete cytogenetic response (Ph+ 0); D/C, discontinued for ever the treatment assigned; EMA, European Medicine Agency; FDA, Federal Drug Administration; MMR, major molecular response (BCR-ABL1 ≤0.1%IS); MR 4.0, BCR-ABL1 ≤0.01%IS; MR 4.5, BCR-ABL1 ≤0.0032%IS; PFS, progression-free survival.

*

Sokal risk.

EURO risk.

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