Participants in a randomized controlled trial had longer overall survival than non-participants: a prospective cohort study.

Shinji OhnoHirofumi MukaiKazutaka NaruiYasuo HozumiYasuo MiyoshiHiroshi YoshinoHiroyoshi DoiharaAkihiko SutoMotoshi TamuraTakashi MorimotoHisamitsu ZahaTakashi ChishimaReiki NishimuraTakashi IshikawaYukari UemuraYasuo Ohashi

Published in: Breast cancer research and treatment (2019)

This study may suggest the existence of a trial effect, in which, for a given treatment, participation in a clinical trial is associated with a better outcome.

Keyphrases

clinical trial
phase ii

study protocol
phase iii

physical activity
open label

randomized controlled trial
double blind