Skip to main content

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