The goal of the study is to learn what happens to levels of nemtabrutinib (MK-1026) in a healthy person's body over time. Researchers will compare what happens to nemtabrutinib in the body when it is given with or without another medicine called efavirenz.

Inclusion Criteria

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

• Is in good health based on medical history, physical examination, vital sign (VS) measurements, electrocardiograms (ECGs) and laboratory safety tests performed before allocation
• Has a body mass index (BMI) > 18 kg/m2 and ≤ 32 kg/m^2

Exclusion Criteria

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

• Has a 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
• Has a history of cancer (malignancy)

http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf