RECIST criteria: only the longest diameter
CR
(complete response)
disappearance of all target lesions
PR
(partial response)
30% decrease in the sum of the longest diameter of target lesions
PD
(progressive disease)
20% increase in the sum of the longest diameter of target lesions
SD
(stable disease)
small changes that do not meet above criteria
Therasse P, Arbuck SG, Eisenhauer EA, et al: New guidelines to evaluate the response to treatment in solid tumors: European
Organization for Research and Treatment of Cancer, National Cancer Institute of the United States, National Cancer Institute of Canada.
J Natl Cancer Inst 92:205-216, 2000