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. |