Applied Treatment and Response
BEST
After randomization all 144 patients received the first treatment cycle (n = 72 CONTROL, n = 72 ATRA). Overall, 254 treatment cycles were applied in CONTROL and 177 in ATRA (Best responses (CR/CRi) were achieved in 26 of 72 (36.1%) in CONTROL and in 24 of 72 (33.3%) patients in ATRA (