11.07.2015 Views

Clinical Trials

Clinical Trials

Clinical Trials

SHOW MORE
SHOW LESS
  • No tags were found...

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

■■❚❙❘Chapter 14Noninferiority <strong>Trials</strong>Sam Miller, Colin Neate, and Duolao WangA noninferiority trial aims to demonstrate that the effect of anew treatment is as good as, or better than, that of an activecomparator. This is assessed by demonstrating that the newtreatment is not worse than the comparator by more than aspecified margin (the noninferiority margin [δ]). In this chapter,we discuss in detail, using a recent trial, situations wherenoninferiority trials are appropriate, factors to be consideredwhen choosing an appropriate δ, methods for sample sizedetermination, and the issues involved in the analysis andevaluation of noninferiority.131

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!