Inclusion Criteria1. Subjects who have a clinical diagnosis of acute ischemic stroke
2. Subjects within 72 hours after onset of the stroke
3. Other inclusion criteria may apply.
Exclusion Criteria1. Subjects who are scheduled to have surgical operations likely to affect the prognosis (including intravascular surgery and circulatory reconstruction)
2. Subjects who are pregnant or lactating, or who have child-bearing potential, or who wish to become pregnant.
3. Other exclusion criteria may apply.