The purpose of this study is to learn about the safety of MK-1708, and how well elderly people tolerate it. The study will also measure what happens to MK-1708 in a healthy elderly person's body over time (pharmacokinetic or PK study). Researchers will learn if at least 1 dose level of MK-1708 will be safe, well-tolerated, and will be above a certain level in people's blood after 24 hours.

Inclusion Criteria:

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

• Is in good health before randomization
• Has a body mass index (BMI) ≥18 and ≤32 kg/m^2, inclusive

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). Participants with definitively treated disease who, in the opinion of the study investigator, are highly unlikely to have a recurrence for the duration of the study may be enrolled at the discretion of the investigator

https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf