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Progression-free survival - Wikipedia

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Progression-free survival (PFS) is "the length of time during and after the treatment of a disease, such as cancer, that a patient lives with the disease but it does not get worse".[1] In oncology, PFS usually refers to situations in which a tumor is present, as demonstrated by laboratory testing, radiologic testing, or clinically. Similarly, "disease-free survival" is the length of time after patients have received treatment and have no detectable disease. Time to progression (TTP) does not count patients who die from other causes but is otherwise a close equivalent to PFS (unless there are many such events).[2] The FDA gives separate definitions and prefers PFS.[3] PFS is widely used as a surrogate endpoint in oncology.[4] The definition of "progression" generally involves imaging techniques (plain radiograms, CT scans, MRI, PET scans, ultrasounds) or other aspects: biochemical progression may be defined on the basis of an increase in a tumor marker (such as CA125 for epithelial ovar

Progression-free survival - Wikipedia Jump to content From Wikipedia, the free encyclopedia Time living with a disease that does not get worse Progression-free survival ( PFS ) is "the length of time during and after the treatment of a disease, such as cancer, that a patient lives with the disease but it does not get worse". [ 1 ] In oncology , PFS usually refers to situations in which a tumor is present, as demonstrated by laboratory testing, radiologic testing, or clinically. Similarly, "disease-free survival" is the length of time after patients have received treatment and have no detectabl

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