Clinical trials: Around half of new treatments perform better than existing treatments, review
On average, new treatments perform better in clinical trials only slightly more often than existing treatments, according to a new systematic review published in the Cochrane Library. The fact that experimental treatments are not more effective may seem disappointing, but the authors of the review say their findings satisfy an important ethical requirement for clinical trials.<img src="http://feeds.feedburner.com/~r/sciencedaily/~4/tNxymJfSn8A" height="1" width="1"/>
