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Table 2 Distribution of Alzheimer's disease trials by phase

From: Globalization of Alzheimer's disease clinical trials

 

Phase 1

Phase 2

Phase 3

Phase 4

United Statesa

13

29

22

7

Western Europe

7

17

15

1

Canada

0

10

11

1

Eastern Europe

0

10

11

0

Australia/New Zealand

2

6

10

1

Japan

1

4

9

2

South America

0

5

7

0

Korea

0

3

5

1

Russia

0

7

4

0

Middle East

1

3

3

3

Chinab

1

2

4

1

Africa

0

1

4

0

Mexico/Central America

0

2

3

0

India/Southeast Asia

0

0

1

1

  1. aThe United States had one trial listed as phase I/II. bChina had one trial listed as phase II/III.