RESULTS	According to the intention-to-treat analysis , the complete response rate was 75 % for arm A and 72.6 % for arm B. With a median follow-up of 62 months there was no difference in 7-year probability of survival ( 60 % and 57.8 % ; P = 0.5 ) , disease-free survival ( DFS ) ( 62 % and 71 % ; P = 0.2 ) and progression-free survival ( PFS ) ( 44.9 % and 40.9 % ; P = 0.7 ) between the two arms .\