Efficacy of Alogliptin With Pioglitazone (Actos®) in Subjects With Type 2 Diabetes Mellitus

2014-08-27 03:41:45 | BioPortfolio


The purpose of this study is to evaluate the combination of alogliptin, once daily (QD), and pioglitazone in subjects with type 2 diabetes mellitus who are inadequately controlled with diet and exercise alone.


There are approximately 19 million people in the United States who have been diagnosed with diabetes mellitus, of which 90% to 95% is type 2. The prevalence of type 2 diabetes varies among racial and ethnic populations and has been shown to correlate with age, obesity, family history, history of gestational diabetes, and physical inactivity. Over the next decade, a marked increase in the number of adults with diabetes mellitus is expected, placing an ever-increasing burden on families and the health care system.

Current pharmacologic interventions for type 2 diabetes mellitus include a diverse range of antidiabetic medications with different mechanisms of action including insulin and insulin analogues, sulfonylureas, metformin, meglitinides, thiazolidinediones, inhibitors of alpha- glucosidase, analogs of glucagon-like peptide-1, and synthetic analogues of human amylin. Despite the variety of medications, many have clinically important or potentially life-threatening side effects, restricted use in many subpopulations, concerns with long-term tolerability, and challenges related to compliance due to side effects and route of administration. All of these reasons contribute to the difficulties patients have reaching the target glycosylated hemoglobin level less than 7%.

SYR-322 (alogliptin) is a selective, orally available inhibitor of the dipeptidyl peptidase-4 enzyme. Dipeptidyl peptidase-4 enzyme is thought to be primarily responsible for the in vivo degradation of 2 peptide hormones released in response to nutrient ingestion, namely glucagon-like peptide-1 and glucose-dependent insulinotropic peptide. Both peptides exert important effects on islet beta cells to stimulate glucose-dependent insulin secretion as well as regulating beta cell proliferation and cytoprotection. Glucagon-like peptide-1, but not glucose-dependent insulinotropic peptide, inhibits gastric emptying, glucagon secretion, and food intake. Glucose-dependent insulinotropic peptide has been shown to enhance insulin secretion by direct interaction with a glucose-dependent insulinotropic peptide -specific receptor on islet beta cells. The glucose-lowering actions of glucagon-like peptide-1, but not glucose-dependent insulinotropic peptide, are preserved in patients with type 2 diabetes mellitus.

Pioglitazone (ACTOS®) is a thiazolidinedione developed by Takeda Chemical Industries, Ltd. (Osaka, Japan) that is approved for the treatment of type 2 diabetes mellitus. Pioglitazone is a potent and highly selective peroxisome proliferator-activated receptor-gamma agonist that decreases insulin resistance in the periphery and liver resulting in increased insulin-dependent glucose disposal and decreased hepatic glucose output.

As the rate of newly diagnosed cases of type 2 diabetes mellitus continues to grow, so does the need for products that will provide better glycemic control and improved safety and tolerability. SYR-322 and pioglitazone have complementary actions. SYR-322 inhibits the degradation of glucagon-like peptide-1 by inhibiting the enzyme dipeptidyl peptidase IV, thus augmenting glucose-dependent insulin secretion while pioglitazone is a peripheral and hepatic insulin sensitizer. Given the complementary mechanisms of action of SYR-322 (stimulates insulin secretion) and pioglitazone (enhances insulin sensitivity), the addition of combination therapy in treatment naïve type 2 diabetes patients may potentially allow the patients to reach and maintain their glycosylated hemoglobin goal more effectively.

The aim of this study is to evaluate the effectiveness of the combination of SYR-322 with pioglitazone in subjects who are inadequately controlled on diet and exercise alone. Study participation is anticipated to be approximately 8.5 months.

Study Design

Allocation: Randomized, Control: Active Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment


Diabetes Mellitus


Alogliptin and pioglitazone, Alogliptin and pioglitazone, Alogliptin, Pioglitazone


United States




Takeda Global Research & Development Center, Inc.

Results (where available)

View Results


Published on BioPortfolio: 2014-08-27T03:41:45-0400

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Medical and Biotech [MESH] Definitions

A subclass of DIABETES MELLITUS that is not INSULIN-responsive or dependent (NIDDM). It is characterized initially by INSULIN RESISTANCE and HYPERINSULINEMIA; and eventually by GLUCOSE INTOLERANCE; HYPERGLYCEMIA; and overt diabetes. Type II diabetes mellitus is no longer considered a disease exclusively found in adults. Patients seldom develop KETOSIS but often exhibit OBESITY.

Diabetes mellitus induced experimentally by administration of various diabetogenic agents or by PANCREATECTOMY.

Urination of a large volume of urine with an increase in urinary frequency, commonly seen in diabetes (DIABETES MELLITUS; DIABETES INSIPIDUS).

A subtype of DIABETES MELLITUS that is characterized by INSULIN deficiency. It is manifested by the sudden onset of severe HYPERGLYCEMIA, rapid progression to DIABETIC KETOACIDOSIS, and DEATH unless treated with insulin. The disease may occur at any age, but is most common in childhood or adolescence.

A strain of Rattus norvegicus which is a model for spontaneous insulin-dependent diabetes mellitus (DIABETES MELLITUS, INSULIN-DEPENDENT).

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