KLK3 and neoplasm: If a patient experiences either a PSA decline of 90% or more or a PSA level of less than 1.0 and CR, or a PSA decline of 90% or more or a PSA level of less than 1.0 and PR plus tumor uptake below liver uptake on either SPECT/CT or PET/CT, the subsequent cycle will be postponed until disease progression.