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Table 2 Tumor response criteria

From: Biphasic pulses enhance bleomycin efficacy in a spontaneous canine genital tumor model of chemoresistance: Sticker sarcoma

Complete Remission (CR) – the disappearance of all evidence of cancer in all sites for a defined period of time.
Partial Remission (PR) – the decrease in size of all tumors by 50% or greater as measured by the sum of the product of two diameters of each tumor for a defined period of time.
Stable Disease (SD) – the decrease of < 50% or an increase of < 25% in the sum of the product of two diameters for a defined period of time.
Progressive Disease (PD) – the increase of 25% or more in the sum of the product of two diameters for a defined period of time.