Progression-Free Survival

A new hobby of mine is occasionally reading trial reports on the treatments prescribed to my wife. In those studies two important measures are progression-free survival (PFS) and overall survival (OS). The first is the number of months until cancer ceases to be arrested by treatment and resumes growing and spreading, and the second is the number of months until death. So it is that such reports will contain sentences such as the one that today caught my mind: (more…)