Real life outcomes vs. clinical trial results

Research output: Contribution to journalReview article

1 Scopus citations

Abstract

Two questions that clinicians should answer as they attempt to apply the results of clinical trials to clinical practice are: (1) will statistically significant results be reproduced in their clinical practice; and (2) if nothing goes wrong in a clinical trial, is everything alright? Regarding the first question, when considering the results of a randomized, multicenter, prospective, controlled clinical trial, two questions that cannot be addressed by simply by reading the trial results and that only the practicing clinician can answer are: (1) is the study population representative of the patient about to be treated; and (2) is the totality of evidence outside the trial (including the clinician's own extensive experience) consistent with the trial result? Regarding the second question, clinicians are advised to recognize that most studies, even Phase 3 trials, are underpowered to accurately assess the risk of low frequency events.

Original languageEnglish (US)
Pages (from-to)88-92
Number of pages5
JournalJournal of Ophthalmic and Vision Research
Volume14
Issue number1
DOIs
StatePublished - Jan 1 2019

All Science Journal Classification (ASJC) codes

  • Ophthalmology

Keywords

  • Clinical Practice
  • Clinical Trial
  • Confidence Interval
  • P value
  • Rule of Three
  • Statistical Significance

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