This study focuses on Atherosclerosis, a condition where plaque builds up inside the arteries, which are the blood vessels that carry blood throughout the body. The purpose of the study is to evaluate the safety and how well the body handles a single dose of the drug MK-1403. Participants may receive either the active drug or a placebo, which is an inactive substance.

The treatment involves taking MK-1403 in the form of an oral capsule, which is a pill taken by mouth. During the study, researchers will monitor pharmacokinetics, which refers to how the body absorbs, distributes, processes, and eliminates a medication over time. This process helps determine how much of the substance stays in the blood and how long it remains active in the system.