MK0431 and Pioglitazone Co-Administration Factorial Study in Patients With Type 2 Diabetes Mellitus (0431-102 AM2)

A Multicenter, Randomized, Double-Blind Study of the Co-Administration of Sitagliptin and Pioglitazone in Patients With Type 2 Diabetes Mellitus Who Have Inadequate Glycemic Control

A study to evaluate the efficacy and safety of sitagliptin and pioglitazone co-administration in comparison with sitagliptin and pioglitazone monotherapy in patients with type 2 diabetes.

Inclusion Criteria:

• Patient is highly unlikely to conceive
• Patient meets one of the 3 categories is naïve to all antihyperglycemic agent (AHA) therapies, or is non-naïve based upon the patient's current diet, medical regimen and screening A1c patient is currently not on AHA with a screening A1c >=7.5 % and =<11.0 % patient is currently on either metformin pr sulfonylurea monotherapy with a screening A1c >=7.0 % and =<9.0 %

Exclusion Criteria

• Patient has a history of type 1 diabetes mellitus or history of ketoacidosis or has C=peptide value of =<0.8 ng/mL
• Patient has previously been treated with insulin, thiazolidinedione (TZD) (rosiglitazone or pioglitazone), any Dipeptidyl peptidase-4 (DPP-4) inhibitor (sitagliptin, vildagliptin, or alogliptin), exenatide or has previously been in a clinical study with any DPP-4 inhibitor or incretin mimetic
• Patient is on a weight loss program and is not in the maintenance phase or has started a weight loss medication (e.g. orlistat or sibutramine) within the prior 8 weeks
• Patient has undergone surgery within the prior 30 days or has major surgery planned during the study
• Patient has a medical history of active liver disease including chronic active hepatitis B or C or symptomatic gallbladder disease including primary biliary cirrhosis
• Patient has received treatment with an investigational product within 12 weeks prior to Visit 1