A Study of Diltiazem With a Single Dose of MK-6552 in Healthy Adult Participants (MK-6552-007)

A Study to Evaluate the Effects of Coadministration of Diltiazem on the Plasma Pharmacokinetics of a Single Dose of MK-6552 in Healthy Participants

The main goal of this study is to learn what happens to MK-6552 in a person's body over time (a pharmacokinetic or PK study). Researchers want to know what happens to MK-6552 in healthy adults when a single dose of MK-6552 is given with multiple doses of diltiazem. The researchers believe that multiple doses of diltiazem will not affect the highest amount of MK-6552 in the blood.

Inclusion Criteria:

The main inclusion criteria include but are not limited to the following:

• Is in good health before randomization
• Body Mass Index (BMI) between 18 and 32 kg/m^2, inclusive

Exclusion Criteria:

The main exclusion criteria include but are not limited to the following:

• History of clinically significant endocrine, gastrointestinal (GI), cardiovascular, hematological, hepatic, immunological, renal, respiratory, genitourinary, or major neurological (including stroke and chronic seizures) abnormalities or diseases
• History of cancer (malignancy)