27 Response Criteria.............................................. ............................................................ 27 6.3.1 Definitions................................................................................................................. 27 6.3.2 Disease Parameters ............................................. ...................................................... 28 6.3.3 Methods for Evaluation of Measurable Disease ................... .................................... 29 6.3.4 Response Criteria.............................................. ........................................................ 30 6.3.5 Duration of Response........................................... .....................................................