This Study Will Assess the Safety and Tolerability of AZD8418 After Single Increasing Oral Doses

A Phase I, Single-center, Randomized, Double-blind, Placebo-controlled Single-ascending Dose, First Time Into Man Study to Assess the Safety, Tolerability, and Pharmacokinetics (Part A) and an Open-label Assessment of the Effect of Food on the Pharmacokinetics (Part B) of Orally Administered AZD8418

The main purpose of this study is to assess the safety and tolerability of AZD8418 after single increasing oral doses.

Another purpose of this study is to evaluate the pharmacokinetics (also called PK - how the study drug enters and leaves the body and how your body acts on the study drug) of AZD8418. Part B of the study will assess the effect of food on the safety and pharmacokinetics of AZD8418.

Inclusion Criteria:

• Healthy male volunteers
• Healthy female volunteers of non-childbearing potential

Exclusion Criteria:

• History of any clinically significant medical, neurologic, or psychiatric disease (including repeated episodes of major depression) or a disorder which, in the opinion of the Investigator, may either put the volunteer at risk because of participation
• History of severe allergy/hypersensitivity or ongoing allergy/hypersensitivity, as judged by the Investigator, or history of hypersensitivity to drugs with a similar chemical structure or class to AZD8418