Skip to main content

Advertisement

Table 1 Overview of Alzheimer’s disease clinical trials from clinicaltrials.gov

From: Alzheimer’s disease drug-development pipeline: few candidates, frequent failures

Year registered Phase 1 Phase 2 Phase 3 Total
2002 0 2 3 5
2003 0 5 7 12
2004 1 9 4 14
2005 4 19 9 32
2006 5 14 6 25
2007 16 22 8 46
2008 25 27 9 61
2009 28 30 14 72
2010 16 24 11 51
2011 15 26 4 45
2012 14 28 8 50
Total 124 206 83 413