A Study of the Efficacy and Safety of Ertugliflozin Monotherapy in the Treatment of Participants With Type 2 Diabetes Mellitus and Inadequate Glycemic Control Despite Diet and Exercise (MK-8835-003)

A Study to Assess Cardiovascular Outcomes Following Treatment With MK-3102 in Participants With Type 2 Diabetes Mellitus (MK-3102-018)

An Efficacy and Safety Trial of Verubecestat (MK-8931) in Mild to Moderate Alzheimer's Disease (P07738)

Safety and Efficacy of Suvorexant (MK-4305) for the Treatment of Insomnia in Participants With Alzheimer's Disease (MK-4305-061)

A Study to Assess the Safety of GRF6021 Infusions in Subjects With Parkinson's Disease and Cognitive Impairment

Efficacy and Safety of MK-7622 as Adjunct Therapy in Participants With Alzheimer's Disease (MK-7622-012)