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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.