The topics
Design Notes
Three topics, each one a short, plain read.
01Therapeutic studies and prevention studies: different goalsGeneral information on how clinical research distinguishes treating an existing condition from trying to prevent one.02When a study compares two active optionsA plain-language look at active-comparator designs versus placebo-controlled ones.03Open-label extensions after a blinded studyGeneral information on what an open-label extension is and what it can and cannot show.