Efficacy and Safety of Alogliptin Combined With Metformin in Participants With Type 2 Diabetes Mellitus

Study Overview
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Brief Summary
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The purpose of this study is to evaluate the efficacy and safety of alogliptin, once daily (QD), combined with metformin in adults with type 2 diabetes mellitus.

Detailed Description
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There are approximately 19 million people in the United States who have been diagnosed with diabetes mellitus, of which 90% to 95% are 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. Takeda is developing SYR-322 (alogliptin) for the improvement of glycemic control in patients with type 2 diabetes mellitus. Alogliptin is an inhibitor of the dipeptidyl peptidase IV enzyme. Dipeptidyl peptidase IV is thought to be primarily responsible for the degradation of 2 peptide hormones released in response to nutrient ingestion. It is expected that inhibition of dipeptidyl peptidase IV will improve glycemic (glucose) control in patients with type 2 diabetes. The aim of the current study is to evaluate the effectiveness of alogliptin in combination with metformin in individually who are inadequately controlled on metformin alone. Individuals who participate in this study will be required to commit to a screening visit and up to 14 additional visits at the study center. Study participation is anticipated to be about 34 weeks (or 8.5 months).

Official Title
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A Multicenter, Randomized, Double-Blind, Placebo-Controlled Study to Determine the Efficacy and Safety of SYR110322 (SYR-322) When Used in Combination With Metformin in Subjects With Type 2 Diabetes

Conditions
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Diabetes Mellitus

Intervention / Treatment
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* Drug: Alogliptin and metformin
* Drug: Alogliptin and metformin
* Drug: Metformin


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria Diagnosis of type 2 diabetes mellitus currently treated with metformin alone but, experiencing inadequate glycemic control. The participant should have received the metformin monotherapy for at least the 3 months prior to Screening; and must have a stable dose of greater than or equal to 1500 mg metformin for at least 8 weeks prior to randomization. Participants with a maximum tolerated dose that is documented to be less than 1500 mg of metformin may also be enrolled if this dose has been stable for 8 weeks prior to randomization. No treatment with antidiabetic agents other than metformin within the 3 months prior to Screening. (Exception: if a participant has received other antidiabetic therapy for less than 7 days within the 3 months prior to Screening.) Body mass index greater than or equal to 23 kg/m2 and less than or equal to 45 kg/m2 Fasting C-peptide concentration greater than or equal to 0.8 ng per mL. (If this screening criterion is not met, the participant still qualifies if C-peptide is greater than or equal to 1.5 ng per mL after a challenge test. Glycosylated hemoglobin concentration between 7.0% and 10.0%, inclusive If regular use of other, non-excluded medications, must be on a stable dose for at least the 4 weeks prior to Screening. However, as needed use of prescription or over-the-counter medications is allowed at the discretion of the investigator. Systolic blood pressure less than or equal to 180 mm Hg and diastolic pressure less than or equal to 110 mm Hg Hemoglobin greater than or equal to 12 g per dL for males and greater than or equal to 10 g per dL for females Alanine aminotransferase less than or equal to 3 time the upper limit of normal Serum creatinine less than1.5 mg per dL for males and less than 1.4 mg per dL for females Thyroid-stimulating hormone level less than or equal to the upper limit of the normal range and the participant is clinically euthyroid. Neither pregnant nor lactating. Female participants of childbearing potential must be practicing adequate contraception. Adequate contraception must be practiced for the duration of participation in the study. Able and willing to monitor their own blood glucose concentrations with a home glucose monitor No major illness or debility that in the investigator's opinion prohibits the participant from completing the study Able and willing to provide written informed consent Exclusion Criteria Urine albumin to creatinine ratio of greater than 1000 μg per mg at Screening. If elevated, the participant may be rescreened within 1 week. History of cancer, other than squamous cell or basal cell carcinoma of the skin, that has not been in full remission for at least 5 years prior to Screening. (A history of treated cervical intraepithelial neoplasia I or cervical intraepithelial neoplasia II is allowed.) History of laser treatment for proliferative diabetic retinopathy within the 6 months prior to Screening History of treated diabetic gastric paresis New York Heart Association Class III or IV heart failure regardless of therapy. Currently treated participants who are stable at Class I or II are candidates for the study. History of coronary angioplasty, coronary stent placement, coronary bypass surgery, or myocardial infarction within the 6 months prior to Screening History of any hemoglobinopathy that may affect determination of glycosylated hemoglobin History of infection with hepatitis B, hepatitis C, or human immunodeficiency virus History of a psychiatric disorder that will affect the participant's ability to participate in the study History of angioedema in association with use of angiotensin-converting enzyme inhibitors or angiotensin-II receptor inhibitors History of alcohol or substance abuse within the 2 years prior to Screening Receipt of any investigational drug within the 30 days prior to Screening or a history of receipt of an investigational antidiabetic drug within the 3 months prior to Screening Prior treatment in an investigational study of alogliptin Excluded Medications: Treatment with antidiabetic agents other than study drug or metformin is not allowed within the 3 months prior to Screening and through the completion of the end-of treatment/early termination procedures. Treatment with weight-loss drugs, any investigational antidiabetics, or oral or systemically injected glucocorticoids is not allowed from 3 months prior to randomization through the completion of the end-of-treatment/early termination procedures. Inhaled corticosteroids are allowed. Participants must be instructed not to take any medications, including over-the-counter products, without first consulting with the investigator.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Alogliptin 12.5 mg QD<br> | Drug: Alogliptin and metformin<br>* Alogliptin 12.5 mg, tablets, orally, once daily and metformin for up to 26 weeks.<br>* Other names: SYR-322;|
| Experimental: Alogliptin 25 mg QD<br> | Drug: Alogliptin and metformin<br>* Alogliptin 25 mg, tablets, orally, once daily and metformin for up to 26 weeks.<br>* Other names: SYR-322;|
| Placebo Comparator: Metformin<br> | Drug: Metformin<br>* Alogliptin placebo-matching tablets, orally, once daily and metformin for up to 26 weeks.<br>* Other names: Glucophage;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 26. | The change in the value of glycosylated hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at week 26 or final visit and glycosylated hemoglobin collected at baseline. | Baseline and Week 26. | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change From Baseline in Glycosylated Hemoglobin (Week 4). | The change in the value of Glycosylated Hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at week 4 and Glycosylated Hemoglobin collected at baseline. | Baseline and Week 4. | 
| Change From Baseline in Glycosylated Hemoglobin (Week 8). | The change in the value of Glycosylated Hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at week 8 and Glycosylated Hemoglobin collected at baseline. | Baseline and Week 8. | 
| Change From Baseline in Glycosylated Hemoglobin (Week 12). | The change in the value of Glycosylated Hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at week 12 and Glycosylated Hemoglobin collected at baseline. | Baseline and Week 12. | 
| Change From Baseline in Glycosylated Hemoglobin (Week 16). | The change in the value of Glycosylated Hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at week 16 and Glycosylated Hemoglobin collected at baseline. | Baseline and Week 16. | 
| Change From Baseline in Glycosylated Hemoglobin (Week 20). | The change in the value of Glycosylated Hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at week 20 and Glycosylated Hemoglobin collected at baseline. | Baseline and Week 20. | 
| Change From Baseline in Fasting Plasma Glucose (Week 1). | The change between the value of fasting plasma glucose collected at final visit or week 1 and fasting plasma glucose collected at baseline. | Baseline and Week 1. | 
| Change From Baseline in Fasting Plasma Glucose (Week 2). | The change between the value of fasting plasma glucose collected at week 2 and fasting plasma glucose collected at baseline. | Baseline and Week 2. | 
| Change From Baseline in Fasting Plasma Glucose (Week 4). | The change between the value of fasting plasma glucose collected at week 4 and fasting plasma glucose collected at baseline. | Baseline and Week 4. | 
| Change From Baseline in Fasting Plasma Glucose (Week 8). | The change between the value of fasting plasma glucose collected at week 8 and fasting plasma glucose collected at baseline. | Baseline and Week 8. | 
| Change From Baseline in Fasting Plasma Glucose (Week 12). | The change between the value of fasting plasma glucose collected at week 12 and fasting plasma glucose collected at baseline. | Baseline and Week 12. | 
| Change From Baseline in Fasting Plasma Glucose (Week 16). | The change between the value of fasting plasma glucose collected at week 16 and fasting plasma glucose collected at baseline. | Baseline and Week 16. | 
| Change From Baseline in Fasting Plasma Glucose (Week 20). | The change between the value of fasting plasma glucose collected at week 20 and fasting plasma glucose collected at baseline. | Baseline and Week 20. | 
| Change From Baseline in Fasting Plasma Glucose (Week 26). | The change between the value of fasting plasma glucose collected at week 26 or final visit and fasting plasma glucose collected at baseline. | Baseline and Week 26. | 
| Number of Participants With Marked Hyperglycemia (Fasting Plasma Glucose ≥ 200 mg Per dL). | The number of participants with a fasting plasma glucose value greater than or equal to 200 mg per dL during the 26 week study. | 26 Weeks. | 
| Number of Participants Requiring Rescue. | The number of participants requiring rescue for failing to achieve pre-specified glycemic targets during the 26 week study. | 26 Weeks. | 
| Change From Baseline in Fasting Proinsulin (Week 4). | The change between the value of fasting proinsulin collected at week 4 and fasting proinsulin collected at baseline. | Baseline and Week 4. | 
| Change From Baseline in Fasting Proinsulin (Week 8). | The change between the value of fasting proinsulin collected at week 8 and fasting proinsulin collected at baseline. | Baseline and Week 8. | 
| Change From Baseline in Fasting Proinsulin (Week 12). | The change between the value of fasting proinsulin collected at week 12 and fasting proinsulin collected at baseline. | Baseline and Week 12. | 
| Change From Baseline in Fasting Proinsulin (Week 16). | The change between the value of fasting proinsulin collected at week 16 and fasting proinsulin collected at baseline. | Baseline and Week 16. | 
| Change From Baseline in Fasting Proinsulin (Week 20). | The change between the value of fasting proinsulin collected at week 20 and fasting proinsulin collected at baseline. | Baseline and Week 20. | 
| Change From Baseline in Fasting Proinsulin (Week 26). | The change between the value of fasting proinsulin collected at week 26 or final visit and fasting proinsulin collected at baseline. | Baseline and Week 26. | 
| Change From Baseline in Insulin (Week 4). | The change between the value of insulin collected at week 4 and insulin collected at baseline. | Baseline and Week 4. | 
| Change From Baseline in Insulin (Week 8). | The change between the value of insulin collected at week 8 and insulin collected at baseline. | Baseline and Week 8. | 
| Change From Baseline in Insulin (Week 12). | The change between the value of insulin collected at week 12 and insulin collected at baseline. | Baseline and Week 12. | 
| Change From Baseline in Insulin (Week 16). | The change between the value of insulin collected at week 16 and insulin collected at baseline. | Baseline and Week 16. | 
| Change From Baseline in Insulin (Week 20). | The change between the value of insulin collected at week 20 and insulin collected at baseline. | Baseline and Week 20. | 
| Change From Baseline in Insulin (Week 26). | The change between the value of insulin collected at week 26 and insulin collected at baseline. | Baseline and Week 26. | 
| Change From Baseline in Proinsulin/Insulin Ratio (Week 4). | The change between the ratio value of proinsulin and insulin collected at week 4 and the ratio value of proinsulin and insulin collected at baseline. | Baseline and Week 4. | 
| Change From Baseline in Proinsulin/Insulin Ratio (Week 8). | The change between the ratio value of proinsulin and insulin collected at week 8 and the ratio value of proinsulin and insulin collected at baseline. | Baseline and Week 8. | 
| Change From Baseline in Proinsulin/Insulin Ratio (Week 12). | The change between the ratio value of proinsulin and insulin collected at week 12 and the ratio value of proinsulin and insulin collected at baseline. | Baseline and Week 12. | 
| Change From Baseline in Proinsulin/Insulin Ratio (Week 16). | The change between the ratio value of proinsulin and insulin collected at week 16 and the ratio value of proinsulin and insulin collected at baseline. | Baseline and Week 16. | 
| Change From Baseline in Proinsulin/Insulin Ratio (Week 20). | The change between the ratio value of proinsulin and insulin collected at week 20 and the ratio value of proinsulin and insulin collected at baseline. | Baseline and Week 20. | 
| Change From Baseline in Proinsulin/Insulin Ratio (Week 26). | The change between the ratio value of proinsulin and insulin collected at week 26 or final visit and the ratio value of proinsulin and insulin collected at baseline. | Baseline and Week 26. | 
| Change From Baseline in C-peptide (Week 4). | The change between the value of C-peptide collected at week 4 and C-peptide collected at baseline. | Baseline and Week 4. | 
| Change From Baseline in C-peptide (Week 8). | The change between the value of C-peptide collected at week 8 and C-peptide collected at baseline. | Baseline and Week 8. | 
| Change From Baseline in C-peptide (Week 12). | The change between the value of C-peptide collected at week 12 and C-peptide collected at baseline. | Baseline and Week 12. | 
| Change From Baseline in C-peptide (Week 16). | The change between the value of C-peptide collected at week 16 and C-peptide collected at baseline. | Baseline and Week 16. | 
| Change From Baseline in C-peptide (Week 20). | The change between the value of C-peptide collected at week 20 and C-peptide collected at baseline. | Baseline and Week 20. | 
| Change From Baseline in C-peptide (Week 26). | The change between the value of C-peptide collected at week 26 or final visit and C-peptide collected at baseline. | Baseline and Week 26. | 
| Number of Participants With Glycosylated Hemoglobin ≤ 6.5%. | The number of participants with a value for the percentage of glycosylated hemoglobin (the percentage of hemoglobin that is bound to glucose) less than or equal to 6.5% during the 26 week study. | Baseline and Week 26. | 
| Number of Participants With Glycosylated Hemoglobin ≤ 7.0%. | The number of participants with a value for the percentage of glycosylated hemoglobin (the percentage of hemoglobin that is bound to glucose) less than or equal to 7.0% during the 26 week study. | Baseline and Week 26. | 
| Number of Participants With Glycosylated Hemoglobin ≤ 7.5%. | The number of participants with a value for the percentage of glycosylated hemoglobin (the percentage of hemoglobin that is bound to glucose) less than or equal to 7.5% during the 26 week study. | Baseline and Week 26. | 
| Number of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 0.5%. | The number of participants with a decrease from baseline in the percentage of glycosylated hemoglobin (the percentage of hemoglobin that is bound to glucose) greater than or equal to 0.5% during the 26 week study. | Baseline and Week 26. | 
| Number of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.0%. | The number of participants with a decrease from baseline in the percentage of glycosylated hemoglobin (the percentage of hemoglobin that is bound to glucose) greater than or equal to 1.0% during the 26 week study. | Baseline and Week 26. | 
| Number of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.5%. | The number of participants with a decrease from baseline in the percentage of glycosylated hemoglobin (the percentage of hemoglobin that is bound to glucose) greater than or equal to 1.5% during the 26 week study. | Baseline and Week 26. | 
| Number of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 2.0%. | The number of participants with a decrease from baseline in the percentage of glycosylated hemoglobin (the percentage of hemoglobin that is bound to glucose) greater than or equal to 2.0% during the 26 week study. | Baseline and Week 26. | 
| Change From Baseline in Body Weight (Week 8). | The change between Body Weight measured at week 8 and Body Weight measured at baseline. | Baseline and Week 8. | 
| Change From Baseline in Body Weight (Week 12). | The change between Body Weight measured at week 12 and Body Weight measured at baseline. | Baseline and Week 12. | 
| Change From Baseline in Body Weight (Week 20). | The change between Body Weight measured at week 20 and Body Weight measured at baseline. | Baseline and Week 20. | 
| Change From Baseline in Body Weight (Week 26). | The change between Body Weight measured at week 26 or final visit and Body Weight measured at baseline. | Baseline and Week 26. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Glucose Metabolism Disorder, Dysmetabolic Syndrome, Type II Diabetes, Diabetes Mellitus, Lipoatrophic, Dyslipidemia, Drug Therapy