Omarigliptin (MK-3102) Clinical Trial - Add-on to Oral Antihyperglycemic Agent Study in Japanese Participants With Type 2 Diabetes Mellitus (MK-3102-015)

A Phase III, Multicenter, Randomized, Placebo-controlled, Parallel-group, Double-blinded Study and Subsequent Open-label, Extension Study to Assess the Safety and Efficacy of Addition of MK-3102 in Japanese Patients With Type 2 Diabetes Mellitus Who Have Inadequate Glycemic Control on Diet/Exercise Therapy and Oral Antihyperglycemic Agent Monotherapy

This study will examine the safety and efficacy of the addition of omarigliptin in Japanese participants with type 2 diabetes mellitus who have inadequate glycemic control on diet/exercise therapy and oral antihyperglycemic agent monotherapy.

The treatment period is composed of a 24-week double-blind period (Phase A) and a 28-week open-label period (Phase B). During Phase A, participants will received either omarigliptin 25 mg or a matching placebo. During Phase, B all participants will receive omarigliptin 25 mg. All participants will remain on a stable dose and administration of a single oral antihyperglycemic basal medication.

Inclusion Criteria:

• Has type 2 diabetes mellitus
• Has inadequate glycemic control on diet/exercise therapy and oral antihyperglycemic agent monotherapy

Exclusion Criteria:

• History of type 1 diabetes mellitus or a history of ketoacidosis
• History of any of the following medications: Thiazolidinediones (TZD) (for participants whose basal medication is not TZD) and/or insulin within 12 weeks prior to study participation, omarigliptin anytime