tokens: RESULTS : Six of 30 patients ( 20 %) without prior chemotherapy achieved a partial response ( PR )( 95 % confidence interval [ CI ], 8 % to 39 %). The median duration of response was 21 weeks ( range , 17 to 28 ). One of 16 patients ( 6 %) with prior chemotherapy had a complete response ( CR ) of 31 weeks ' duration ( 95 % CI , 0 % to 30 %). The overall response rate ( World Health Organization [ WHO ] criteria ) was 15 %( CR , 2 %; PR 13 %; 95 % CI , 6 % to 29 %). The median dose - intensity ( DI ) was 20 mg / m2 / wk .