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Table 5 Completion rates for combined trial arms among regions a

From: Comparing recruitment, retention, and safety reporting among geographic regions in multinational Alzheimer’s disease clinical trials

Study program

Treatment group

North America

Western Europe

Australia/South Africa

Japan

Asia

Eastern Europe/Russia

South America/Mexico

IDENTITY

Placebo

291 (76.4)EE

162 (81.4)EE

37 (80.4)

99 (90.0)EE

79 (79.8)

79 (59.4)

70 (81.4)

Semagacestat 140 mg PO

198 (50.8)

129 (60.9)

29 (53.7)

69 (64.5)

58 (60.4)

69 (48.9)

31 (37.8)

EXPEDITION

Placebo

325 (72.1)

163 (76.5)

32 (84.2)

71 (87.7)

59 (84.3)

38 (61.3)

82 (74.6)

Solanezumab 400 mg IV

303 (67.8)JP

175 (80.7)

35 (76.1)

89 (89.0)

57 (87.7)

43 (75.4)

74 (77.9)

  1. aData are presented as count (%). EE = P < 0.01 vs Eastern Europe; JP = P < 0.01 vs Japan; IV = Intravenously; PO = By mouth.