This is a Study to Evaluate the Safety, Tolerability and Pharmacokinetics (PK) of AZD9742 After Single IV Doses in Healthy Subjects

Increasing single IV infusion doses of AZD9742 given to approximately 6 cohorts of 8 subjects each (6 on active and 2 on placebo). Specific doses will be selected by the safety review committee

Single IV infusion of AZD9742 placebo given to approximately 6 cohorts of 8 subjects each (6 on active and 2 on placebo)