Is it possible that some medications are not being approved because some people are non-responders versus the drug not being beneficial?

Yes, because a drug may be beneficial to a small proportion of people who are responders, present study designs may dilute results due to the non-responders. The authors of a recent study suggest the use of a study design called enriched enrolment with randomised withdrawal, EERW. In this study design, subjects are tried on a drug first, and only those who have a positive response are then randomised to study it further.

H.J. McQuay et al. Enriched enrolment with randomised withdrawal (EERW): Time for a new look at clinical trial design in chronic pain. Pain 2008. Volume 135. Pp. 217-220.



 Post to Del.icio.us

 Email to a Friend







*Disclaimer:*The information contained herein is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments or treatments. The information should NOT be used in place of visit with your healthcare provider, nor should you disregard the advice of your health care provider because of any information you read in this topic.



All content provided by eORTHOPOD® is a registered trademark of Medical Multimedia Group, L.L.C.. Content is the sole property of Medical Multimedia Group, LLC and used herein by permission.

Back to top

MySpace Tracker