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Efficacy of Alogliptin and Pioglitazone in Subjects With Type 2 Diabetes Mellitus

A Multicenter, Randomized, Double-Blind Study to Determine the Efficacy and Safety of the Addition of SYR-322 25 mg Versus Dose Titration From 30 mg to 45 mg of Pioglitazone HCl (ACTOS®) in Subjects With Type 2 Diabetes Mellitus Who Have Inadequate Control on a Combination of Metformin and 30 mg of Pioglitazone HCl Therapy

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00432276
Enrollment
803
Registered
2007-02-07
Start date
2007-01-31
Completion date
2009-06-30
Last updated
2013-04-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes Mellitus

Keywords

Glucose Metabolism Disorder, Dysmetabolic Syndrome, Type II Diabetes, Diabetes Mellitus, Lipoatrophic, Dyslipidemia, Hyperglycemia, Drug Therapy

Brief summary

The purpose of the study is to compare the effect of adding alogliptin, once daily (QD), to the ongoing treatment regimen of pioglitazone HCl and metformin in patients with inadequate glycemic control.

Detailed description

Despite the introduction of new classes of medications for glycemic control, just over half of adults with type 2 diabetes mellitus (T2DM) achieve a glycosylated hemoglobin level less than 7.0%, the American Diabetes Association recommended glycosylated hemoglobin goal. The rising incidence of type 2 diabetes mellitus along with limitations of the currently available treatments suggest the need for new therapies for glycemic control along with the increased requirement for combination therapy in type 2 diabetes mellitus. Thiazolidinediones increase glucose utilization, decrease gluconeogenesis, and increase glucose disposal through an incompletely understood mechanism but one associated with binding of the drug to nuclear receptors known as peroxisome proliferator-activated receptors-gamma. Peroxisome proliferator-activated receptors-gamma are found in tissues important for insulin action, such as adipose tissue, skeletal muscle, and the liver. The greatest concentration of peroxisome proliferator-activated receptors-gamma receptors is in adipose tissue. Thiazolidinediones reduce insulin resistance by enhancing insulin sensitivity in muscle cells, adipose tissue, and hepatic cells (inhibiting hepatic gluconeogenesis) with no direct impact on insulin secretion. Thus, thiazolidinediones improve glycemic control and result in reduced levels of circulating insulin. Pioglitazone HCl (ACTOS®) is a thiazolidinedione developed by Takeda Chemical Industries, Ltd. (Osaka, Japan). Pioglitazone depends on the presence of insulin for its mechanism of action. Worldwide clinical investigation has shown that, as an adjunct to diet and exercise, pioglitazone improves glycemic control when used as monotherapy, and in combination with commonly used antidiabetic medications (ie, sulfonylureas, metformin, or insulin). SYR-322 (alogliptin) is a selective, orally available inhibitor of dipeptidyl peptidase IV currently in development by Takeda Global Research & Development Center, Inc. as a treatment for type 2 diabetes mellitus. Dipeptidyl peptidase IV is the primary enzyme involved in the in vivo degradation of at least 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 β-cells to stimulate glucose-dependent insulin secretion and regulate β-cell proliferation and cytoprotection. Glucagon-like peptide-1 also inhibits gastric emptying, glucagon secretion, and food intake. The glucose-lowering actions of glucagon-like peptide-1, but not glucose-dependent insulinotropic peptide, are preserved in patients with type 2 diabetes. Given the complementary mechanisms of action of alogliptin (stimulation of insulin secretion) and pioglitazone (enhancement of insulin sensitivity) and the absence of overlapping safety risks, the introduction of this combination therapy in patients with T2DM could potentially show enhanced glycemic control and allow patients to reach and maintain their HbA1c goal more effectively. This study is designed to determine if the addition of alogliptin to a combination of pioglitazone with metformin can be effective at achieving glycemic control without increasing safety risks versus the titration of pioglitazone to 45 mg with metformin in patients with type 2 diabetes mellitus who are experiencing inadequate glycemic control on a current regimen of metformin.

Interventions

DRUGAlogliptin

Alogliptin tablets.

DRUGPioglitazone

Pioglitazone tablets.

DRUGMetformin

Metformin HCl tablets (immediate-release, commercially available formulation) ≥1500 mg or maximum tolerated dose.

DRUGPlacebo

Matching placebo tablets.

Sponsors

Takeda
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Has a historical diagnosis of type 2 diabetes mellitus. * Meets one of the following: * Has been inadequately controlled (HbA1c between 7% and 10%, inclusive) on a stable dose of greater than or equal to 1500 mg (or maximum tolerated dose) of metformin and 30 mg of pioglitazone * Has been inadequately controlled (as defined by an HbA1c ≥7.5%) on a combination therapy including metformin and another oral antidiabetic agent (ie, sulfonylureas, rosiglitazone maleate, or pioglitazone 15 mg, etc). Subjects on a combination therapy that included a DPP-4 inhibitor were excluded. * No treatment with antidiabetic agents other than metformin and pioglitazone. * Body mass index greater than or equal to 23 kg/m\^2 and less than or equal to 45 kg/m\^2. * Fasting plasma C-peptide concentration greater than or equal to 0.8 ng/mL. * Systolic blood pressure less than 160 mmHg and diastolic pressure less than 100 mmHg. * Hemoglobin greater than or equal to 12 g/dL for males and greater than or equal to 10 g/dL for females. * Alanine aminotransferase less than or equal to 2.5 x upper limit of normal. * Serum creatinine less than 1.5 mg/dL for males and less than 1.4 mg/dL for females. * Thyroid-stimulating hormone level less than or equal to the upper limit of normal range and the patient is clinically euthyroid. * Females of childbearing potential who are sexually active must agree to use adequate contraception, and can neither be pregnant nor lactating from Screening throughout the duration of 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 patient from completing the study.

Exclusion criteria

* Urine albumin/creatinine ratio of greater than 1000 μg/mg. * 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. * History of bladder cancer. * History of laser treatment for proliferative diabetic retinopathy within the 6 months prior to Screening. * Patients with unexplained microscopic hematuria of greater than +1, confirmed by repeat testing. * History of treated diabetic gastroparesis. * History of gastric bypass surgery. * New York Heart Association Class I-IV heart failure regardless of therapy. * 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 patient'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 abuse 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. * Hypersensitive to pioglitazone HCl, metformin, alogliptin or other excipients. * The patient has donated more than 400 mL of blood within the 90 days prior to Screening and Pre-Screening, if applicable.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Glycosylated Hemoglobin (HbA1c)Baseline and Weeks 26 and 52.The change from Baseline to Week 26 and Week 52 in HbA1c (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound).

Secondary

MeasureTime frameDescription
Percentage of Participants With Glycosylated Hemoglobin ≤ 6.5%Weeks 26 and 52.Clinical response at Weeks 26 and 52 was assessed by the percentage of participants with HbA1c less than or equal to 6.5%.
Percentage of Participants With Glycosylated Hemoglobin ≤ 7.0%Weeks 26 and 52.Clinical response at Weeks 26 and 52 was assessed by the percentage of participants with HbA1c less than or equal to 7%.
Percentage of Participants With Glycosylated Hemoglobin ≤ 7.5%Weeks 26 and 52.Clinical response at Weeks 26 and 52 was assessed by the percentage of participants with HbA1c less than or equal to 7.5%.
Percentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 0.5%Weeks 26 and 52.Clinical response at Weeks 26 and 52 was assessed by the percentage of participants with a decrease from Baseline in HbA1c of greater than or equal to 0.5%.
Percentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 1.0%Weeks 26 and 52.Clinical response at Weeks 26 and 52 was assessed by the percentage of participants with a decrease from Baseline in HbA1c of greater than or equal to 1.0%.
Percentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 1.5%Weeks 26 and 52.Clinical response at Weeks 26 and 52 was assessed by the percentage of participants with a decrease from Baseline in HbA1c of greater than or equal to 1.5%.
Percentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 2.0%Weeks 26 and 52.Clinical response at Weeks 26 and 52 was assessed by the percentage of participants with a decrease from Baseline in HbA1c of greater than or equal to 2.0%.
Change From Baseline in Fasting Plasma GlucoseBaseline and Weeks 2, 4, 8, 12, 16, 20, 26, 34, 42 and 52.The change from Baseline in fasting plasma glucose (FPG) was assessed at Weeks 2, 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least Squares Means were from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline FPG as covariates.
Percentage of Participants With Marked HyperglycemiaBaseline to Week 52Marked Hyperglycemia is defined as fasting plasma glucose greater than or equal to 200 mg/dL (11.10 mmol/L).
Percentage of Participants Meeting Hyperglycemic Rescue CriteriaBaseline to Week 52Rescue was defined as meeting 1 of the following criteria, confirmed by a 2nd sample drawn within 7 days after the first sample and analyzed by the central laboratory: 1. After more than 2 weeks of treatment but prior to the Week 4 Visit: A single fasting plasma glucose (FPG) ≥275 mg/dL; 2. From the Week 4 Visit but prior to the Week 8 Visit: A single FPG ≥250 mg/dL; 3. From the Week 8 Visit but prior to the Week 12 Visit: A single FPG ≥225 mg/dL; 4. From the Week 12 Visit through the End-of-Treatment Visit: HbA1c ≥8.5% AND ≤0.5% reduction in HbA1c as compared with the baseline HbA1c.
Change From Baseline in Fasting ProinsulinBaseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.Proinsulin is a precursor to insulin, and was measured as an indicator of pancreatic function. The change from Baseline in fasting proinsulin was assessed at Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least Squares Means were from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline fasting proinsulin as covariates.
Change From Baseline in Fasting InsulinBaseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.The change from Baseline in fasting insulin was assessed at Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least Squares Means were from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline fasting insulin as covariates.
Change From Baseline in Proinsulin/Insulin RatioBaseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.The ratio of proinsulin to insulin was calculated as proinsulin (pmol/L) / insulin (μIU/mL) at weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52 relative to the Baseline value. Least squares means were from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline fasting proinsulin/insulin ratio as covariates.
Change From Baseline in C-peptideBaseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.C-peptide is a byproduct created when the hormone insulin is produced and is measured by a blood test. Change from Baseline was assessed at Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline fasting C-peptide as covariates.
Change From Baseline in Calculated HOMA Insulin ResistanceBaseline and Weeks 12, 26, 42 and 52.The Homeostasis Model Assessment of insulin resistance (HOMA IR) measures insulin resistance based on fasting glucose and insulin measurements: HOMA IR = fasting plasma insulin (µIU/mL) \* fasting plasma glucose (mmol/L) / 22.5 A higher number indicates a greater degree of insulin resistance. The change from Baseline in HOMA IR was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline HOMA insulin resistance as covariates.
Change From Baseline in Calculated HOMA Beta-cell FunctionBaseline and Weeks 12, 26, 42 and 52.The Homeostasis Model Assessment (HOMA) estimates steady state beta cell function (%B) as a percentage of a normal reference population. HOMA %B = 20 \* insulin (µIU/mL) / fasting plasma glucose (mmol/L) - 3.5 The change from Baseline in the homeostasis model assessment of beta cell function was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline HOMA beta cell function as covariates.
Change From Baseline in Body WeightBaseline and Weeks 4, 8, 12, 26, 42 and 52.Change from Baseline in body weight was assessed at Weeks 4, 8, 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline body weight as covariates.
Change From Baseline in Total CholesterolBaseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.Change from Baseline in total cholesterol was assessed at Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline total cholesterol as covariates.
Change From Baseline in High-Density Lipoprotein CholesterolBaseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.Change from Baseline in high-density lipoprotein cholesterol (HDL-C) was assessed at Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline HDL cholesterol as covariates.
Change From Baseline in Low-Density Lipoprotein CholesterolBaseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.Change from Baseline in low-density lipoprotein cholesterol (LDL-C) was assessed at Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline LDL cholesterol as covariates.
Change From Baseline in TriglyceridesBaseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.Change from Baseline in triglycerides was assessed at Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline triglycerides as covariates.
Change From Baseline in Free Fatty AcidsBaseline and Weeks 12, 26, 42, and 52.Change from Baseline in free fatty acids was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline free fatty acids as covariates.
Change From Baseline in Apolipoprotein A1Baseline and Weeks 12, 26, 42 and 52.Change from Baseline in Apolipoprotein A1 was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline apolipoprotein A1 as covariates.
Change From Baseline in Apolipoprotein A2Baseline and Weeks 12, 26, 42 and 52.Change from Baseline in Apolipoprotein A2 was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline apolipoprotein A2 as covariates.
Change From Baseline in Apolipoprotein BBaseline and Weeks 12, 26, 42 and 52.Change from Baseline in Apolipoprotein B was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline apolipoprotein B as covariates.
Change From Baseline in Apolipoprotein C-IIIBaseline and Weeks 12, 26, 42 and 52.Change from Baseline in Apolipoprotein C-III was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline apolipoprotein C-III as covariates.
Change From Baseline in Plasminogen Activator Inhibitor-1Baseline and Weeks 12, 26, 42 and 52.Change from Baseline in plasminogen activator inhibitor-1 (PAI-1) was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline PAI-1 as covariates.
Change From Baseline in High-sensitivity C-Reactive ProteinBaseline and Weeks 12, 26, 42 and 52.Change from Baseline in high-sensitivity C-Reactive Protein (hsCRP) was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline hsCRP as covariates.
Change From Baseline in AdiponectinBaseline and Weeks 12, 26, 42 and 52.Change from Baseline in adiponectin was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline adiponectin as covariates.
Change From Baseline in Nuclear Magnetic Resonance Lipid Fractionation Total TriglyceridesBaseline and Weeks 12, 26, 42 and 52.Nuclear Magnetic Resonance (NMR) lipid fractionation was used to assess the change from Baseline in total triglyceride levels at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline NMR triglycerides as covariates.
Change From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesBaseline and Weeks 12, 26, 42 and 52.The change from Baseline in levels of total VLDL/chylomicron particles and large VLDL/chylomicron particles was assessed by NMR lipid fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline VLDL/chylomicron particles as covariates.
Change From Baseline in Low Density Lipoprotein (LDL) ParticlesBaseline and Weeks 12, 26, 42 and 52.The change from Baseline in levels of total, large, medium-small, total small and very small LDL particles was assessed by NMR fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline LDL particles as covariates.
Change From Baseline in VLDL / Chylomicron TriglyceridesBaseline and Weeks 12, 26, 42 and 52.The change from Baseline in levels of VLDL/chylomicron triglycerides was assessed by NMR lipid fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline VLDL/chylomicron triglycerides as covariates.
Change From Baseline in VLDL ParticlesBaseline and Weeks 12, 26, 42 and 52.The change from Baseline in levels of medium VLDL particles and small VLDL particles was assessed by NMR fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline VLDL particles as covariates.
Change From Baseline in HbA1c Over TimeBaseline and Weeks 4, 8, 12, 16, 20, 34 and 42.The change from Baseline in HbA1c (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) during the study. Least Squares Means were from an Analysis of Covariance (ANCOVA) model with treatment, study schedule, and geographic region as class variables, and baseline metformin dose and baseline HbA1c as covariates.
Change From Baseline in Intermediate Density Lipoprotein (IDL) ParticlesBaseline and Weeks 12, 26, 42 and 52.The change from Baseline in levels of IDL particles was assessed by NMR lipid fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline IDL particles as covariates.
Change From Baseline in Mean LDL Particle SizeBaseline and Weeks 12, 26, 42 and 52.Change from Baseline in mean LDL particle size was assessed by NMR lipid fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline mean LDL particle size as covariates.
Change From Baseline in High Density Lipoprotein (HDL) ParticlesBaseline and Weeks 12, 26, 42 and 52.The change from Baseline in levels of total, large, medium and small HDL particles was assessed by NMR fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline HDL particles as covariates.
Change From Baseline in Mean HDL Particle SizeBaseline and Weeks 12, 26, 42 and 52.Change from Baseline in mean HDL particle size was assessed by NMR lipid fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline mean HDL particle size as covariates.
Change From Baseline in Mean VLDL Particle SizeBaseline and Weeks 12, 26, 42 and 52.Change from Baseline in mean VLDL particle size was assessed by NMR lipid fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline mean VLDL particle size as covariates.

Countries

United States

Participant flow

Recruitment details

Participants took part in the study at 235 investigative sites in 16 countries worldwide from 30 January 2007 to 5 June 2009.

Pre-assignment details

Participants with a diagnosis of type 2 diabetes who were experiencing inadequate glycemic control on their existing treatment regimen of metformin HCl plus pioglitazone were randomized in a 1:1 ratio to 1 of 2 treatment arms: addition of alogliptin 25 mg versus titration of pioglitazone 30 mg to 45 mg.

Participants by arm

ArmCount
Alogliptin 25 mg + Pioglitazone 30 mg + Metformin
Alogliptin 25 mg, tablets, orally, once daily; pioglitazone 30 mg, tablets, orally, once daily; and the maximum tolerated dose of metformin, tablets, orally, for up to 52 weeks.
404
Pioglitazone 45 mg + Metformin
Alogliptin placebo-matching tablets, orally, once daily; pioglitazone 45 mg, tablets, orally, once daily; and the maximum tolerated dose of metformin, tablets, orally, for up to 52 weeks.
399
Total803

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event1316
Overall StudyHyperglycemic Rescue4487
Overall StudyLost to Follow-up62
Overall StudyOther23
Overall StudyPhysician Decision68
Overall StudyProtocol Violation2520
Overall StudyWithdrawal by Subject2520

Baseline characteristics

CharacteristicAlogliptin 25 mg + Pioglitazone 30 mg + MetforminPioglitazone 45 mg + MetforminTotal
Age Continuous54.3 years
STANDARD_DEVIATION 9.86
55.9 years
STANDARD_DEVIATION 9.94
55.1 years
STANDARD_DEVIATION 9.93
Age, Customized
<65 years
339 participants320 participants659 participants
Age, Customized
≥65 years
65 participants79 participants144 participants
Baseline daily metformin HCl use1700.0 mg1700.0 mg1700.0 mg
BMI31.52 kg/m^2
STANDARD_DEVIATION 5.248
31.58 kg/m^2
STANDARD_DEVIATION 5.177
31.55 kg/m^2
STANDARD_DEVIATION 5.21
Current smoker
No
304 participants300 participants604 participants
Current smoker
Yes
100 participants99 participants199 participants
Duration of diabetes7.47 years
STANDARD_DEVIATION 5.243
6.85 years
STANDARD_DEVIATION 4.611
7.16 years
STANDARD_DEVIATION 4.946
Ethnicity (NIH/OMB)
Hispanic or Latino
30 Participants31 Participants61 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
374 Participants368 Participants742 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
HbA1c
<8.0%
161 participants163 participants324 participants
HbA1c
≥8.0%
243 participants236 participants479 participants
Height166.82 cm
STANDARD_DEVIATION 9.884
166.37 cm
STANDARD_DEVIATION 10.856
166.60 cm
STANDARD_DEVIATION 10.375
Race/Ethnicity, Customized
American Indian or Alaska Native
2 participants0 participants2 participants
Race/Ethnicity, Customized
Asian
79 participants78 participants157 participants
Race/Ethnicity, Customized
Black or African American
41 participants36 participants77 participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
2 participants0 participants2 participants
Race/Ethnicity, Customized
Other
38 participants29 participants67 participants
Race/Ethnicity, Customized
White
242 participants256 participants498 participants
Sex: Female, Male
Female
194 Participants195 Participants389 Participants
Sex: Female, Male
Male
210 Participants204 Participants414 Participants
Weight88.16 kg
STANDARD_DEVIATION 18.898
87.98 kg
STANDARD_DEVIATION 19.283
88.07 kg
STANDARD_DEVIATION 19.078

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
116 / 404104 / 399
serious
Total, serious adverse events
20 / 40420 / 399

Outcome results

Primary

Change From Baseline in Glycosylated Hemoglobin (HbA1c)

The change from Baseline to Week 26 and Week 52 in HbA1c (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound).

Time frame: Baseline and Weeks 26 and 52.

Population: Per-protocol set included all randomized patients who received at least 1 dose of double-blind study medication and who had no major protocol violations. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Glycosylated Hemoglobin (HbA1c)Change from Baseline at Week 26-0.89 percentage of glycosylated hemoglobinStandard Error 0.042
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Glycosylated Hemoglobin (HbA1c)Change from Baseline at Week 52-0.70 percentage of glycosylated hemoglobinStandard Error 0.048
Pioglitazone 45 mg + MetforminChange From Baseline in Glycosylated Hemoglobin (HbA1c)Change from Baseline at Week 26-0.42 percentage of glycosylated hemoglobinStandard Error 0.042
Pioglitazone 45 mg + MetforminChange From Baseline in Glycosylated Hemoglobin (HbA1c)Change from Baseline at Week 52-0.29 percentage of glycosylated hemoglobinStandard Error 0.048
Comparison: The analysis was conducted at the 1-sided 0.025 significance level. Non-inferiority was demonstrated if the upper confidence limit for the LS mean difference was less than +0.3%.ANCOVA
Comparison: Comparison of Change from Baseline at Week 52. The null hypothesis was that the average change from Baseline in HbA1c at Week 52 for the alogliptin 25 mg addition group is inferior to the average change for the pioglitazone titration group. The alternative hypothesis was that the change from Baseline in HbA1c for the alogliptin 25 mg addition group was non-inferior to the change for the pioglitazone titration group for at Week 52.ANCOVA
Secondary

Change From Baseline in Adiponectin

Change from Baseline in adiponectin was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline adiponectin as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in AdiponectinWeek 12 (n=355, 361)1.15 μg/mLStandard Error 0.453
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in AdiponectinWeek 26 (n=366, 371)1.17 μg/mLStandard Error 0.599
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in AdiponectinWeek 42 (n=367, 371)-0.41 μg/mLStandard Error 0.529
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in AdiponectinWeek 52 (n=367, 371)-0.70 μg/mLStandard Error 0.595
Pioglitazone 45 mg + MetforminChange From Baseline in AdiponectinWeek 52 (n=367, 371)2.21 μg/mLStandard Error 0.591
Pioglitazone 45 mg + MetforminChange From Baseline in AdiponectinWeek 12 (n=355, 361)2.97 μg/mLStandard Error 0.449
Pioglitazone 45 mg + MetforminChange From Baseline in AdiponectinWeek 42 (n=367, 371)3.04 μg/mLStandard Error 0.526
Pioglitazone 45 mg + MetforminChange From Baseline in AdiponectinWeek 26 (n=366, 371)4.19 μg/mLStandard Error 0.595
Comparison: Comparison of change from Baseline at Week 52.p-value: <0.00195% CI: [-4.57, -1.27]ANCOVA
Secondary

Change From Baseline in Apolipoprotein A1

Change from Baseline in Apolipoprotein A1 was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline apolipoprotein A1 as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein A1Week 12 (n=348, 355)0.5 mg/dLStandard Error 0.99
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein A1Week 26 (n=359, 363)0.1 mg/dLStandard Error 0.95
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein A1Week 42 (n=360, 363)-2.1 mg/dLStandard Error 0.95
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein A1Week 52 (n=360, 363)-4.5 mg/dLStandard Error 0.99
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein A1Week 52 (n=360, 363)-4.4 mg/dLStandard Error 0.98
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein A1Week 12 (n=348, 355)0.0 mg/dLStandard Error 0.98
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein A1Week 42 (n=360, 363)-2.2 mg/dLStandard Error 0.95
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein A1Week 26 (n=359, 363)-0.9 mg/dLStandard Error 0.95
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.93495% CI: [-2.9, 2.6]ANCOVA
Secondary

Change From Baseline in Apolipoprotein A2

Change from Baseline in Apolipoprotein A2 was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline apolipoprotein A2 as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein A2Week 12 (n=348, 355)-0.4 mg/dLStandard Error 0.22
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein A2Week 26 (n=359, 363)0.4 mg/dLStandard Error 0.23
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein A2Week 42 (n=360, 363)0.8 mg/dLStandard Error 0.25
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein A2Week 52 (n=360, 363)0.3 mg/dLStandard Error 0.24
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein A2Week 52 (n=360, 363)1.0 mg/dLStandard Error 0.24
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein A2Week 12 (n=348, 355)0.6 mg/dLStandard Error 0.22
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein A2Week 42 (n=360, 363)1.1 mg/dLStandard Error 0.25
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein A2Week 26 (n=359, 363)0.7 mg/dLStandard Error 0.22
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.0795% CI: [-1.3, 0.1]ANCOVA
Secondary

Change From Baseline in Apolipoprotein B

Change from Baseline in Apolipoprotein B was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline apolipoprotein B as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: Full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein BWeek 12 [N=348, 355]-3.1 mg/dLStandard Error 1.02
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein BWeek 26 [N=359, 363]-0.6 mg/dLStandard Error 1.09
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein BWeek 42 [N=360, 363]-0.4 mg/dLStandard Error 1.15
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein BWeek 52 [N=360, 363]-1.2 mg/dLStandard Error 1.1
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein BWeek 52 [N=360, 363]1.7 mg/dLStandard Error 1.1
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein BWeek 12 [N=348, 355]0.1 mg/dLStandard Error 1.01
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein BWeek 42 [N=360, 363]1.8 mg/dLStandard Error 1.15
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein BWeek 26 [N=359, 363]1.1 mg/dLStandard Error 1.08
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.06495% CI: [-5.9, 0.2]ANCOVA
Secondary

Change From Baseline in Apolipoprotein C-III

Change from Baseline in Apolipoprotein C-III was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline apolipoprotein C-III as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: Full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein C-IIIWeek 12 (n=352, 361)-0.6 mg/dLStandard Error 0.15
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein C-IIIWeek 26 (n=365, 369)-0.1 mg/dLStandard Error 0.17
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein C-IIIWeek 42 (n=366, 369)-0.3 mg/dLStandard Error 0.17
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Apolipoprotein C-IIIWeek 52 (n=366, 369)-0.5 mg/dLStandard Error 0.16
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein C-IIIWeek 52 (n=366, 369)0.0 mg/dLStandard Error 0.16
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein C-IIIWeek 12 (n=352, 361)0.1 mg/dLStandard Error 0.15
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein C-IIIWeek 42 (n=366, 369)0.2 mg/dLStandard Error 0.17
Pioglitazone 45 mg + MetforminChange From Baseline in Apolipoprotein C-IIIWeek 26 (n=365, 369)0.2 mg/dLStandard Error 0.17
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.02295% CI: [-1, -0.1]ANCOVA
Secondary

Change From Baseline in Body Weight

Change from Baseline in body weight was assessed at Weeks 4, 8, 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline body weight as covariates.

Time frame: Baseline and Weeks 4, 8, 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Body WeightWeek 4 (n=354, 344)0.18 kgStandard Error 0.094
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Body WeightWeek 8 (n=394, 3940.31 kgStandard Error 0.107
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Body WeightWeek 12 (n=395, 394)0.35 kgStandard Error 0.124
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Body WeightWeek 26 (n=395, 394)0.73 kgStandard Error 0.15
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Body WeightWeek 42 (n=395, 394)1.09 kgStandard Error 0.179
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Body WeightWeek 52 (n=395, 394)1.10 kgStandard Error 0.194
Pioglitazone 45 mg + MetforminChange From Baseline in Body WeightWeek 42 (n=395, 394)1.52 kgStandard Error 0.179
Pioglitazone 45 mg + MetforminChange From Baseline in Body WeightWeek 4 (n=354, 344)0.32 kgStandard Error 0.095
Pioglitazone 45 mg + MetforminChange From Baseline in Body WeightWeek 26 (n=395, 394)0.97 kgStandard Error 0.15
Pioglitazone 45 mg + MetforminChange From Baseline in Body WeightWeek 8 (n=394, 3940.51 kgStandard Error 0.107
Pioglitazone 45 mg + MetforminChange From Baseline in Body WeightWeek 52 (n=395, 394)1.60 kgStandard Error 0.194
Pioglitazone 45 mg + MetforminChange From Baseline in Body WeightWeek 12 (n=395, 394)0.64 kgStandard Error 0.124
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.07195% CI: [-1.03, 0.04]ANCOVA
Secondary

Change From Baseline in Calculated HOMA Beta-cell Function

The Homeostasis Model Assessment (HOMA) estimates steady state beta cell function (%B) as a percentage of a normal reference population. HOMA %B = 20 \* insulin (µIU/mL) / fasting plasma glucose (mmol/L) - 3.5 The change from Baseline in the homeostasis model assessment of beta cell function was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline HOMA beta cell function as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Calculated HOMA Beta-cell FunctionWeek 12 (n=380, 377)14.770 percentage beta cell functionStandard Error 3.6543
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Calculated HOMA Beta-cell FunctionWeek 26 (n=381, 377)30.012 percentage beta cell functionStandard Error 8.6151
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Calculated HOMA Beta-cell FunctionWeek 42 (n=381, 377)15.397 percentage beta cell functionStandard Error 2.7628
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Calculated HOMA Beta-cell FunctionWeek 52 (n=381, 377)15.020 percentage beta cell functionStandard Error 2.7396
Pioglitazone 45 mg + MetforminChange From Baseline in Calculated HOMA Beta-cell FunctionWeek 52 (n=381, 377)2.057 percentage beta cell functionStandard Error 2.7541
Pioglitazone 45 mg + MetforminChange From Baseline in Calculated HOMA Beta-cell FunctionWeek 12 (n=380, 377)4.580 percentage beta cell functionStandard Error 3.6689
Pioglitazone 45 mg + MetforminChange From Baseline in Calculated HOMA Beta-cell FunctionWeek 42 (n=381, 377)2.400 percentage beta cell functionStandard Error 2.7774
Pioglitazone 45 mg + MetforminChange From Baseline in Calculated HOMA Beta-cell FunctionWeek 26 (n=381, 377)3.242 percentage beta cell functionStandard Error 8.6608
Comparison: Comparison of change from Baseline at Week 52.p-value: <0.00195% CI: [5.333, 20.592]ANCOVA
Secondary

Change From Baseline in Calculated HOMA Insulin Resistance

The Homeostasis Model Assessment of insulin resistance (HOMA IR) measures insulin resistance based on fasting glucose and insulin measurements: HOMA IR = fasting plasma insulin (µIU/mL) \* fasting plasma glucose (mmol/L) / 22.5 A higher number indicates a greater degree of insulin resistance. The change from Baseline in HOMA IR was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline HOMA insulin resistance as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Calculated HOMA Insulin ResistanceWeek 12 (n=380, 378)0.007 insulin resistanceStandard Error 0.2339
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Calculated HOMA Insulin ResistanceWeek 26 (n=381, 378)0.336 insulin resistanceStandard Error 0.2446
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Calculated HOMA Insulin ResistanceWeek 42 (n=381, 378)0.200 insulin resistanceStandard Error 0.2103
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Calculated HOMA Insulin ResistanceWeek 52 (n=381, 378)0.353 insulin resistanceStandard Error 0.231
Pioglitazone 45 mg + MetforminChange From Baseline in Calculated HOMA Insulin ResistanceWeek 52 (n=381, 378)0.541 insulin resistanceStandard Error 0.2319
Pioglitazone 45 mg + MetforminChange From Baseline in Calculated HOMA Insulin ResistanceWeek 12 (n=380, 378)0.350 insulin resistanceStandard Error 0.2345
Pioglitazone 45 mg + MetforminChange From Baseline in Calculated HOMA Insulin ResistanceWeek 42 (n=381, 378)0.431 insulin resistanceStandard Error 0.2111
Pioglitazone 45 mg + MetforminChange From Baseline in Calculated HOMA Insulin ResistanceWeek 26 (n=381, 378)0.312 insulin resistanceStandard Error 0.2455
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.56795% CI: [-0.83, 0.455]ANCOVA
Secondary

Change From Baseline in C-peptide

C-peptide is a byproduct created when the hormone insulin is produced and is measured by a blood test. Change from Baseline was assessed at Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline fasting C-peptide as covariates.

Time frame: Baseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in C-peptideWeek 52 (n=395, 390)0.182 ng/mLStandard Error 0.043
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in C-peptideWeek 4 (n=349, 333)0.110 ng/mLStandard Error 0.035
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in C-peptideWeek 8 (n=393, 389)0.074 ng/mLStandard Error 0.0387
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in C-peptideWeek 12 (n=394, 390)0.070 ng/mLStandard Error 0.0459
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in C-peptideWeek 16 (n=395, 390)0.064 ng/mLStandard Error 0.038
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in C-peptideWeek 20 (n=395, 390)0.104 ng/mLStandard Error 0.0384
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in C-peptideWeek 26 (n=395, 390)0.102 ng/mLStandard Error 0.0407
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in C-peptideWeek 34 (n=395, 390)0.118 ng/mLStandard Error 0.0403
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in C-peptideWeek 42 (n=395, 390)0.140 ng/mLStandard Error 0.0413
Pioglitazone 45 mg + MetforminChange From Baseline in C-peptideWeek 34 (n=395, 390)0.003 ng/mLStandard Error 0.0406
Pioglitazone 45 mg + MetforminChange From Baseline in C-peptideWeek 20 (n=395, 390)-0.001 ng/mLStandard Error 0.0386
Pioglitazone 45 mg + MetforminChange From Baseline in C-peptideWeek 4 (n=349, 333)-0.033 ng/mLStandard Error 0.0358
Pioglitazone 45 mg + MetforminChange From Baseline in C-peptideWeek 52 (n=395, 390)0.108 ng/mLStandard Error 0.0433
Pioglitazone 45 mg + MetforminChange From Baseline in C-peptideWeek 8 (n=393, 389)-0.038 ng/mLStandard Error 0.0389
Pioglitazone 45 mg + MetforminChange From Baseline in C-peptideWeek 26 (n=395, 390)-0.013 ng/mLStandard Error 0.0409
Pioglitazone 45 mg + MetforminChange From Baseline in C-peptideWeek 12 (n=394, 390)0.030 ng/mLStandard Error 0.0462
Pioglitazone 45 mg + MetforminChange From Baseline in C-peptideWeek 42 (n=395, 390)0.037 ng/mLStandard Error 0.0415
Pioglitazone 45 mg + MetforminChange From Baseline in C-peptideWeek 16 (n=395, 390)0.010 ng/mLStandard Error 0.0382
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.2395% CI: [-0.047, 0.193]ANCOVA
Secondary

Change From Baseline in Fasting Insulin

The change from Baseline in fasting insulin was assessed at Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least Squares Means were from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline fasting insulin as covariates.

Time frame: Baseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting InsulinWeek 8 (n=382, 378)0.72 μIU/mLStandard Error 0.393
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting InsulinWeek 26 (n=383, 378)1.94 μIU/mLStandard Error 0.479
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting InsulinWeek 16 (n=383, 378)1.19 μIU/mLStandard Error 0.414
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting InsulinWeek 34 (n=383, 378)1.41 μIU/mLStandard Error 0.43
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting InsulinWeek 12 (n=382, 378)1.21 μIU/mLStandard Error 0.505
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting InsulinWeek 42 (n=383, 378)1.79 μIU/mLStandard Error 0.441
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting InsulinWeek 20 (n=383, 378)1.60 μIU/mLStandard Error 0.414
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting InsulinWeek 52 (n=383, 378)1.91 μIU/mLStandard Error 0.47
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting InsulinWeek 4 (n=344, 328)0.53 μIU/mLStandard Error 0.346
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting InsulinWeek 52 (n=383, 378)1.18 μIU/mLStandard Error 0.473
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting InsulinWeek 4 (n=344, 328)-0.54 μIU/mLStandard Error 0.355
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting InsulinWeek 8 (n=382, 378)0.05 μIU/mLStandard Error 0.395
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting InsulinWeek 12 (n=382, 378)1.22 μIU/mLStandard Error 0.507
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting InsulinWeek 16 (n=383, 378)0.56 μIU/mLStandard Error 0.416
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting InsulinWeek 20 (n=383, 378)0.38 μIU/mLStandard Error 0.417
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting InsulinWeek 26 (n=383, 378)0.88 μIU/mLStandard Error 0.482
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting InsulinWeek 34 (n=383, 378)0.83 μIU/mLStandard Error 0.433
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting InsulinWeek 42 (n=383, 378)1.10 μIU/mLStandard Error 0.443
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.27695% CI: [-0.58, 2.04]ANCOVA
Secondary

Change From Baseline in Fasting Plasma Glucose

The change from Baseline in fasting plasma glucose (FPG) was assessed at Weeks 2, 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least Squares Means were from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline FPG as covariates.

Time frame: Baseline and Weeks 2, 4, 8, 12, 16, 20, 26, 34, 42 and 52.

Population: The full analysis set, which included all randomized patients who received at least 1 dose of double-blind study drug and where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 2 (n=360, 345)-15.5 mg/dLStandard Error 1.56
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 4 (n=397, 394)-17.7 mg/dLStandard Error 1.48
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 8 (n=399, 396)-19.1 mg/dLStandard Error 1.56
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 12 (n=399, 396)-19.6 mg/dLStandard Error 1.6
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 16 (n=399, 396)-18.0 mg/dLStandard Error 1.6
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 20 (n=399, 396)-16.4 mg/dLStandard Error 1.65
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 26 (n=399, 396)-17.1 mg/dLStandard Error 1.79
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 34 (n=399, 396)-13.6 mg/dLStandard Error 1.88
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 42 (n=399, 396)-15.9 mg/dLStandard Error 1.87
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 52 (n=399, 396)-14.6 mg/dLStandard Error 1.89
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 34 (n=399, 396)-6.2 mg/dLStandard Error 1.88
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 2 (n=360, 345)-0.5 mg/dLStandard Error 1.59
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 20 (n=399, 396)-5.8 mg/dLStandard Error 1.66
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 4 (n=397, 394)-1.4 mg/dLStandard Error 1.49
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 52 (n=399, 396)-3.7 mg/dLStandard Error 1.89
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 8 (n=399, 396)-5.7 mg/dLStandard Error 1.57
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 26 (n=399, 396)-4.9 mg/dLStandard Error 1.79
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 12 (n=399, 396)-4.8 mg/dLStandard Error 1.61
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 42 (n=399, 396)-4.9 mg/dLStandard Error 1.88
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting Plasma GlucoseWeek 16 (n=399, 396)-4.5 mg/dLStandard Error 1.6
Comparison: Comparison of change from Baseline at Week 52.p-value: <0.00195% CI: [-16.2, -5.7]ANCOVA
Secondary

Change From Baseline in Fasting Proinsulin

Proinsulin is a precursor to insulin, and was measured as an indicator of pancreatic function. The change from Baseline in fasting proinsulin was assessed at Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least Squares Means were from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline fasting proinsulin as covariates.

Time frame: Baseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 8 (n=380, 376)-2.3 pmol/LStandard Error 0.77
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 26 (n=381, 376)0.6 pmol/LStandard Error 0.82
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 16 (n=381, 376)-0.2 pmol/LStandard Error 1.01
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 34 (n=381, 376)0.9 pmol/LStandard Error 0.86
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 12 (n=380, 376)-1.3 pmol/LStandard Error 0.89
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 42 (n=381, 376)-0.1 pmol/LStandard Error 0.8
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 20 (n=381, 376)-0.5 pmol/LStandard Error 0.67
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 52 (n=381, 376)-0.5 pmol/LStandard Error 0.74
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 4 (n=342, 325)-2.0 pmol/LStandard Error 0.67
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 52 (n=381, 376)1.2 pmol/LStandard Error 0.74
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 4 (n=342, 325)-0.8 pmol/LStandard Error 0.69
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 8 (n=380, 376)-0.5 pmol/LStandard Error 0.77
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 12 (n=380, 376)1.6 pmol/LStandard Error 0.89
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 16 (n=381, 376)0.6 pmol/LStandard Error 1.02
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 20 (n=381, 376)0.3 pmol/LStandard Error 0.68
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 26 (n=381, 376)0.7 pmol/LStandard Error 0.83
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 34 (n=381, 376)0.3 pmol/LStandard Error 0.86
Pioglitazone 45 mg + MetforminChange From Baseline in Fasting ProinsulinWeek 42 (n=381, 376)1.1 pmol/LStandard Error 0.81
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.11695% CI: [-3.7, 0.4]ANCOVA
Secondary

Change From Baseline in Free Fatty Acids

Change from Baseline in free fatty acids was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline free fatty acids as covariates.

Time frame: Baseline and Weeks 12, 26, 42, and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Free Fatty AcidsWeek 12 (n=355, 360)-0.0526 mmol/LStandard Error 0.01037
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Free Fatty AcidsWeek 26 (n=366, 368)-0.0364 mmol/LStandard Error 0.01231
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Free Fatty AcidsWeek 42 (n=367, 368)-0.0243 mmol/LStandard Error 0.01083
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Free Fatty AcidsWeek 52 (n=367, 368)-0.0294 mmol/LStandard Error 0.01173
Pioglitazone 45 mg + MetforminChange From Baseline in Free Fatty AcidsWeek 52 (n=367, 368)0.0019 mmol/LStandard Error 0.01171
Pioglitazone 45 mg + MetforminChange From Baseline in Free Fatty AcidsWeek 12 (n=355, 360)-0.0332 mmol/LStandard Error 0.01031
Pioglitazone 45 mg + MetforminChange From Baseline in Free Fatty AcidsWeek 42 (n=367, 368)-0.0222 mmol/LStandard Error 0.01081
Pioglitazone 45 mg + MetforminChange From Baseline in Free Fatty AcidsWeek 26 (n=366, 368)-0.0162 mmol/LStandard Error 0.01228
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.05995% CI: [-0.064, 0.0012]ANCOVA
Secondary

Change From Baseline in HbA1c Over Time

The change from Baseline in HbA1c (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) during the study. Least Squares Means were from an Analysis of Covariance (ANCOVA) model with treatment, study schedule, and geographic region as class variables, and baseline metformin dose and baseline HbA1c as covariates.

Time frame: Baseline and Weeks 4, 8, 12, 16, 20, 34 and 42.

Population: Per-protocol set. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in HbA1c Over TimeChange from Baseline at Week 12 (n=303, 306)-0.85 percentage of glycosylated hemoglobinStandard Error 0.037
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in HbA1c Over TimeChange from Baseline at Week 20 (n=303, 306)-0.91 percentage of glycosylated hemoglobinStandard Error 0.039
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in HbA1c Over TimeChange from Baseline at Week 8 (n=303, 306)-0.71 percentage of glycosylated hemoglobinStandard Error 0.03
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in HbA1c Over TimeChange from Baseline at Week 34 (n=303, 306)-0.82 percentage of glycosylated hemoglobinStandard Error 0.046
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in HbA1c Over TimeChange from Baseline at Week 16 (n=303, 306)-0.91 percentage of glycosylated hemoglobinStandard Error 0.039
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in HbA1c Over TimeChange from Baseline at Week 42 (n=303, 306)-0.80 percentage of glycosylated hemoglobinStandard Error 0.048
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in HbA1c Over TimeChange from Baseline at Week 4 (n=276, 277)-0.42 percentage of glycosylated hemoglobinStandard Error 0.025
Pioglitazone 45 mg + MetforminChange From Baseline in HbA1c Over TimeChange from Baseline at Week 42 (n=303, 306)-0.36 percentage of glycosylated hemoglobinStandard Error 0.048
Pioglitazone 45 mg + MetforminChange From Baseline in HbA1c Over TimeChange from Baseline at Week 4 (n=276, 277)-0.15 percentage of glycosylated hemoglobinStandard Error 0.025
Pioglitazone 45 mg + MetforminChange From Baseline in HbA1c Over TimeChange from Baseline at Week 8 (n=303, 306)-0.27 percentage of glycosylated hemoglobinStandard Error 0.03
Pioglitazone 45 mg + MetforminChange From Baseline in HbA1c Over TimeChange from Baseline at Week 12 (n=303, 306)-0.35 percentage of glycosylated hemoglobinStandard Error 0.037
Pioglitazone 45 mg + MetforminChange From Baseline in HbA1c Over TimeChange from Baseline at Week 16 (n=303, 306)-0.43 percentage of glycosylated hemoglobinStandard Error 0.038
Pioglitazone 45 mg + MetforminChange From Baseline in HbA1c Over TimeChange from Baseline at Week 20 (n=303, 306)-0.45 percentage of glycosylated hemoglobinStandard Error 0.039
Pioglitazone 45 mg + MetforminChange From Baseline in HbA1c Over TimeChange from Baseline at Week 34 (n=303, 306)-0.37 percentage of glycosylated hemoglobinStandard Error 0.045
Comparison: Comparison of change from Baseline in HbA1c at Week 42.p-value: <0.00195% CI: [-0.57, -0.31]ANCOVA
Secondary

Change From Baseline in High-Density Lipoprotein Cholesterol

Change from Baseline in high-density lipoprotein cholesterol (HDL-C) was assessed at Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline HDL cholesterol as covariates.

Time frame: Baseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 8 (n=399, 395)-0.8 mg/dLStandard Error 0.35
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 26 (n=399, 395)0.0 mg/dLStandard Error 0.37
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 16 (n=399, 395)-0.5 mg/dLStandard Error 0.37
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 34 (n=399, 395)-0.6 mg/dLStandard Error 0.38
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 12 (n=399, 395)-0.2 mg/dLStandard Error 0.42
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 42 (n=399, 395)-0.3 mg/dLStandard Error 0.38
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 20 (n=399, 395)-0.2 mg/dLStandard Error 0.37
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 52 (n=395, 395)-0.3 mg/dLStandard Error 0.37
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 4 (n=397, 392)-0.7 mg/dLStandard Error 0.33
Pioglitazone 45 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 52 (n=395, 395)0.3 mg/dLStandard Error 0.37
Pioglitazone 45 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 4 (n=397, 392)0.4 mg/dLStandard Error 0.34
Pioglitazone 45 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 8 (n=399, 395)0.6 mg/dLStandard Error 0.35
Pioglitazone 45 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 12 (n=399, 395)1.1 mg/dLStandard Error 0.42
Pioglitazone 45 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 16 (n=399, 395)0.9 mg/dLStandard Error 0.38
Pioglitazone 45 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 20 (n=399, 395)0.7 mg/dLStandard Error 0.37
Pioglitazone 45 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 26 (n=399, 395)0.6 mg/dLStandard Error 0.37
Pioglitazone 45 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 34 (n=399, 395)0.3 mg/dLStandard Error 0.38
Pioglitazone 45 mg + MetforminChange From Baseline in High-Density Lipoprotein CholesterolWeek 42 (n=399, 395)0.6 mg/dLStandard Error 0.38
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.22895% CI: [-1.7, 0.4]ANCOVA
Secondary

Change From Baseline in High Density Lipoprotein (HDL) Particles

The change from Baseline in levels of total, large, medium and small HDL particles was assessed by NMR fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline HDL particles as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesTotal Particles - Week 12 (n=357, 361)-0.18 μmol/LStandard Error 0.224
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesTotal Particles - Week 26 (n=367, 368)0.37 μmol/LStandard Error 0.228
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesTotal Particles - Week 42 (n=367, 369)0.09 μmol/LStandard Error 0.227
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesTotal Particles - Week 52 (n=367, 369)0.38 μmol/LStandard Error 0.227
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesLarge Particles - Week 12 (n=357, 361)0.08 μmol/LStandard Error 0.102
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesLarge Particles - Week 26 (n=367, 368)0.19 μmol/LStandard Error 0.103
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesLarge Particles - Week 42 (n=367, 369)0.06 μmol/LStandard Error 0.102
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesLarge Particles - Week 52 (n=367, 369)0.19 μmol/LStandard Error 0.105
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesMedium Particles - Week 12 (n=357, 361)0.10 μmol/LStandard Error 0.165
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesMedium Particles - Week 26 (n=367, 368)0.71 μmol/LStandard Error 0.178
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesMedium Particles - Week 42 (n=367, 369)0.57 μmol/LStandard Error 0.172
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesMedium Particles - Week 52 (n=367, 369)0.66 μmol/LStandard Error 0.18
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesSmall Particles - Week 12 (n=357, 361)-0.38 μmol/LStandard Error 0.243
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesSmall Particles - Week 26 (n=367, 368)-0.53 μmol/LStandard Error 0.25
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesSmall Particles - Week 42 (n=367, 369)-0.54 μmol/LStandard Error 0.247
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesSmall Particles - Week 52 (n=367, 369)-0.47 μmol/LStandard Error 0.251
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesSmall Particles - Week 52 (n=367, 369)-1.49 μmol/LStandard Error 0.25
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesTotal Particles - Week 12 (n=357, 361)-0.14 μmol/LStandard Error 0.223
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesMedium Particles - Week 12 (n=357, 361)0.43 μmol/LStandard Error 0.164
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesTotal Particles - Week 26 (n=367, 368)0.03 μmol/LStandard Error 0.227
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesSmall Particles - Week 12 (n=357, 361)-0.92 μmol/LStandard Error 0.242
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesTotal Particles - Week 42 (n=367, 369)-0.11 μmol/LStandard Error 0.227
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesMedium Particles - Week 26 (n=367, 368)0.90 μmol/LStandard Error 0.178
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesTotal Particles - Week 52 (n=367, 369)0.02 μmol/LStandard Error 0.226
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesSmall Particles - Week 42 (n=367, 369)-1.31 μmol/LStandard Error 0.246
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesLarge Particles - Week 12 (n=357, 361)0.35 μmol/LStandard Error 0.101
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesMedium Particles - Week 42 (n=367, 369)0.70 μmol/LStandard Error 0.171
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesLarge Particles - Week 26 (n=367, 368)0.53 μmol/LStandard Error 0.103
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesSmall Particles - Week 26 (n=367, 368)-1.39 μmol/LStandard Error 0.25
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesLarge Particles - Week 42 (n=367, 369)0.51 μmol/LStandard Error 0.101
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesMedium Particles - Week 52 (n=367, 369)0.96 μmol/LStandard Error 0.179
Pioglitazone 45 mg + MetforminChange From Baseline in High Density Lipoprotein (HDL) ParticlesLarge Particles - Week 52 (n=367, 369)0.57 μmol/LStandard Error 0.105
Secondary

Change From Baseline in High-sensitivity C-Reactive Protein

Change from Baseline in high-sensitivity C-Reactive Protein (hsCRP) was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline hsCRP as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High-sensitivity C-Reactive ProteinWeek 12 (n=357, 366)0.2989 mg/LStandard Error 0.53213
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High-sensitivity C-Reactive ProteinWeek 26 (n=366, 373)-0.0632 mg/LStandard Error 0.49229
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High-sensitivity C-Reactive ProteinWeek 42 (n=367, 373)0.7251 mg/LStandard Error 0.48203
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in High-sensitivity C-Reactive ProteinWeek 52 (n=367, 373)0.5875 mg/LStandard Error 0.54194
Pioglitazone 45 mg + MetforminChange From Baseline in High-sensitivity C-Reactive ProteinWeek 52 (n=367, 373)1.4085 mg/LStandard Error 0.53755
Pioglitazone 45 mg + MetforminChange From Baseline in High-sensitivity C-Reactive ProteinWeek 12 (n=357, 366)0.7049 mg/LStandard Error 0.52569
Pioglitazone 45 mg + MetforminChange From Baseline in High-sensitivity C-Reactive ProteinWeek 42 (n=367, 373)0.6443 mg/LStandard Error 0.47813
Pioglitazone 45 mg + MetforminChange From Baseline in High-sensitivity C-Reactive ProteinWeek 26 (n=366, 373)0.9706 mg/LStandard Error 0.48763
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.28395% CI: [-2.3209, 0.679]ANCOVA
Secondary

Change From Baseline in Intermediate Density Lipoprotein (IDL) Particles

The change from Baseline in levels of IDL particles was assessed by NMR lipid fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline IDL particles as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Intermediate Density Lipoprotein (IDL) ParticlesWeek 12 (n=357, 361)-4.9 nmol/LStandard Error 2.24
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Intermediate Density Lipoprotein (IDL) ParticlesWeek 26 (n=367, 368)-4.1 nmol/LStandard Error 2.39
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Intermediate Density Lipoprotein (IDL) ParticlesWeek 42 (n=367, 369)-5.6 nmol/LStandard Error 2.26
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Intermediate Density Lipoprotein (IDL) ParticlesWeek 52 (n=367, 369)-4.5 nmol/LStandard Error 2.22
Pioglitazone 45 mg + MetforminChange From Baseline in Intermediate Density Lipoprotein (IDL) ParticlesWeek 52 (n=367, 369)3.2 nmol/LStandard Error 2.21
Pioglitazone 45 mg + MetforminChange From Baseline in Intermediate Density Lipoprotein (IDL) ParticlesWeek 12 (n=357, 361)3.2 nmol/LStandard Error 2.23
Pioglitazone 45 mg + MetforminChange From Baseline in Intermediate Density Lipoprotein (IDL) ParticlesWeek 42 (n=367, 369)2.0 nmol/LStandard Error 2.26
Pioglitazone 45 mg + MetforminChange From Baseline in Intermediate Density Lipoprotein (IDL) ParticlesWeek 26 (n=367, 368)1.0 nmol/LStandard Error 2.39
Secondary

Change From Baseline in Low-Density Lipoprotein Cholesterol

Change from Baseline in low-density lipoprotein cholesterol (LDL-C) was assessed at Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline LDL cholesterol as covariates.

Time frame: Baseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 8 (n=390, 386)-0.6 mg/dLStandard Error 1.18
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 26 (n=390, 386)-0.6 mg/dLStandard Error 1.36
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 16 (n=390, 386)-1.7 mg/dLStandard Error 1.31
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 34 (n=390, 386)-1.9 mg/dLStandard Error 1.33
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 12 (n=390, 386)-1.2 mg/dLStandard Error 1.21
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 42 (n=390, 386)-1.6 mg/dLStandard Error 1.35
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 20 (n=390, 386)-2.0 mg/dLStandard Error 1.24
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 52 (n=390, 386)-1.9 mg/dLStandard Error 1.32
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 4 (n=388, 383)-2.4 mg/dLStandard Error 1.11
Pioglitazone 45 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 52 (n=390, 386)1.0 mg/dLStandard Error 1.33
Pioglitazone 45 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 4 (n=388, 383)0.0 mg/dLStandard Error 1.12
Pioglitazone 45 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 8 (n=390, 386)2.1 mg/dLStandard Error 1.19
Pioglitazone 45 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 12 (n=390, 386)1.4 mg/dLStandard Error 1.22
Pioglitazone 45 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 16 (n=390, 386)-0.1 mg/dLStandard Error 1.32
Pioglitazone 45 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 20 (n=390, 386)0.1 mg/dLStandard Error 1.25
Pioglitazone 45 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 26 (n=390, 386)1.6 mg/dLStandard Error 1.37
Pioglitazone 45 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 34 (n=390, 386)1.2 mg/dLStandard Error 1.33
Pioglitazone 45 mg + MetforminChange From Baseline in Low-Density Lipoprotein CholesterolWeek 42 (n=390, 386)0.7 mg/dLStandard Error 1.36
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.13295% CI: [-6.5, 0.9]ANCOVA
Secondary

Change From Baseline in Low Density Lipoprotein (LDL) Particles

The change from Baseline in levels of total, large, medium-small, total small and very small LDL particles was assessed by NMR fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline LDL particles as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Particles - Week 12 (n=357, 361)-46.9 nmol/LStandard Error 14.88
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Particles - Week 26 (n=367, 368)-14.0 nmol/LStandard Error 15.83
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Particles - Week 42 (n=367, 369)-11.7 nmol/LStandard Error 16.86
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Particles - Week 52 (n=367, 369)-13.0 nmol/LStandard Error 15.98
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesLarge Particles - Week 12 (n=357, 361)-4.4 nmol/LStandard Error 9.29
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesLarge Particles - Week 26 (n=367, 368)1.1 nmol/LStandard Error 10.37
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesLarge Particles - Week 42 (n=367, 369)-20.8 nmol/LStandard Error 9.68
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesLarge Particles - Week 52 (n=367, 369)-19.2 nmol/LStandard Error 10.03
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesMedium-small Particles - Week 12 (n=357, 361)-7.0 nmol/LStandard Error 3.45
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesMedium-small Particles - Week 26 (n=367, 368)-0.7 nmol/LStandard Error 3.57
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesMedium-small Particles - Week 42 (n=367, 369)4.1 nmol/LStandard Error 3.82
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesMedium-small Particles - Week 52 (n=367, 369)2.4 nmol/LStandard Error 3.54
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Small Particles - Week 12 (n=357, 361)-37.6 nmol/LStandard Error 16.93
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Small Particles - Week 26 (n=367, 368)-10.9 nmol/LStandard Error 17.8
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Small Particles - Week 42 (n=367, 369)15.0 nmol/LStandard Error 18.63
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Small Particles - Week 52 (n=367, 369)10.9 nmol/LStandard Error 17.84
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesVery Small Particles - Week 12 (n=357, 361)-30.6 nmol/LStandard Error 13.84
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesVery Small Particles - Week 26 (n=367, 368)-10.1 nmol/LStandard Error 14.49
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesVery Small Particles - Week 42 (n=367, 369)11.0 nmol/LStandard Error 15.13
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesVery Small Particles - Week 52 (n=367, 369)8.6 nmol/LStandard Error 14.56
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesVery Small Particles - Week 26 (n=367, 368)-17.5 nmol/LStandard Error 14.47
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Particles - Week 12 (n=357, 361)-22.3 nmol/LStandard Error 14.81
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesMedium-small Particles - Week 42 (n=367, 369)1.8 nmol/LStandard Error 3.81
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Particles - Week 26 (n=367, 368)-8.2 nmol/LStandard Error 15.81
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Small Particles - Week 52 (n=367, 369)-3.5 nmol/LStandard Error 17.79
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Particles - Week 42 (n=367, 369)-10.7 nmol/LStandard Error 16.81
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesMedium-small Particles - Week 52 (n=367, 369)1.2 nmol/LStandard Error 3.53
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Particles - Week 52 (n=367, 369)-2.7 nmol/LStandard Error 15.94
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesVery Small Particles - Week 52 (n=367, 369)-4.8 nmol/LStandard Error 14.52
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesLarge Particles - Week 12 (n=357, 361)-5.0 nmol/LStandard Error 9.24
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Small Particles - Week 12 (n=357, 361)-20.8 nmol/LStandard Error 16.84
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesLarge Particles - Week 26 (n=367, 368)8.8 nmol/LStandard Error 10.36
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesVery Small Particles - Week 12 (n=357, 361)-20.6 nmol/LStandard Error 13.77
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesLarge Particles - Week 42 (n=367, 369)0.0 nmol/LStandard Error 9.65
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Small Particles - Week 26 (n=367, 368)-18.2 nmol/LStandard Error 17.77
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesLarge Particles - Week 52 (n=367, 369)-2.4 nmol/LStandard Error 10
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesVery Small Particles - Week 42 (n=367, 369)-14.9 nmol/LStandard Error 15.09
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesMedium-small Particles - Week 12 (n=357, 361)-0.3 nmol/LStandard Error 3.43
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesTotal Small Particles - Week 42 (n=367, 369)-13.0 nmol/LStandard Error 18.58
Pioglitazone 45 mg + MetforminChange From Baseline in Low Density Lipoprotein (LDL) ParticlesMedium-small Particles - Week 26 (n=367, 368)-0.7 nmol/LStandard Error 3.57
Secondary

Change From Baseline in Mean HDL Particle Size

Change from Baseline in mean HDL particle size was assessed by NMR lipid fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline mean HDL particle size as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Mean HDL Particle SizeWeek 12 (n=357, 361)0.04 nmStandard Error 0.012
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Mean HDL Particle SizeWeek 42 (n=367, 369)0.02 nmStandard Error 0.012
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Mean HDL Particle SizeWeek 26 (n=367, 368)0.04 nmStandard Error 0.012
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Mean HDL Particle SizeWeek 52 (n=367, 369)0.03 nmStandard Error 0.012
Pioglitazone 45 mg + MetforminChange From Baseline in Mean HDL Particle SizeWeek 26 (n=367, 368)0.07 nmStandard Error 0.012
Pioglitazone 45 mg + MetforminChange From Baseline in Mean HDL Particle SizeWeek 12 (n=357, 361)0.05 nmStandard Error 0.012
Pioglitazone 45 mg + MetforminChange From Baseline in Mean HDL Particle SizeWeek 52 (n=367, 369)0.08 nmStandard Error 0.012
Pioglitazone 45 mg + MetforminChange From Baseline in Mean HDL Particle SizeWeek 42 (n=367, 369)0.07 nmStandard Error 0.012
Secondary

Change From Baseline in Mean LDL Particle Size

Change from Baseline in mean LDL particle size was assessed by NMR lipid fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline mean LDL particle size as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Mean LDL Particle SizeWeek 12 (n=357, 361)0.05 nmStandard Error 0.031
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Mean LDL Particle SizeWeek 26 (n=367, 368)0.03 nmStandard Error 0.032
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Mean LDL Particle SizeWeek 42 (n=367, 369)-0.02 nmStandard Error 0.032
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Mean LDL Particle SizeWeek 52 (n=367, 369)-0.04 nmStandard Error 0.032
Pioglitazone 45 mg + MetforminChange From Baseline in Mean LDL Particle SizeWeek 52 (n=367, 369)0.03 nmStandard Error 0.032
Pioglitazone 45 mg + MetforminChange From Baseline in Mean LDL Particle SizeWeek 12 (n=357, 361)0.06 nmStandard Error 0.031
Pioglitazone 45 mg + MetforminChange From Baseline in Mean LDL Particle SizeWeek 42 (n=367, 369)0.05 nmStandard Error 0.032
Pioglitazone 45 mg + MetforminChange From Baseline in Mean LDL Particle SizeWeek 26 (n=367, 368)0.07 nmStandard Error 0.032
Secondary

Change From Baseline in Mean VLDL Particle Size

Change from Baseline in mean VLDL particle size was assessed by NMR lipid fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline mean VLDL particle size as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Mean VLDL Particle SizeWeek 12 (n=355, 361)-0.67 nmStandard Error 0.369
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Mean VLDL Particle SizeWeek 26 (n=365, 368)0.11 nmStandard Error 0.391
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Mean VLDL Particle SizeWeek 42 (n=365, 369)0.44 nmStandard Error 0.445
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Mean VLDL Particle SizeWeek 52 (n=365, 369)-0.12 nmStandard Error 0.395
Pioglitazone 45 mg + MetforminChange From Baseline in Mean VLDL Particle SizeWeek 52 (n=365, 369)-1.04 nmStandard Error 0.393
Pioglitazone 45 mg + MetforminChange From Baseline in Mean VLDL Particle SizeWeek 12 (n=355, 361)-0.79 nmStandard Error 0.366
Pioglitazone 45 mg + MetforminChange From Baseline in Mean VLDL Particle SizeWeek 42 (n=365, 369)-0.79 nmStandard Error 0.442
Pioglitazone 45 mg + MetforminChange From Baseline in Mean VLDL Particle SizeWeek 26 (n=365, 368)-0.87 nmStandard Error 0.389
Secondary

Change From Baseline in Nuclear Magnetic Resonance Lipid Fractionation Total Triglycerides

Nuclear Magnetic Resonance (NMR) lipid fractionation was used to assess the change from Baseline in total triglyceride levels at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline NMR triglycerides as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Nuclear Magnetic Resonance Lipid Fractionation Total TriglyceridesWeek 12 (n=357, 361)-8.7 mg/dLStandard Error 3.24
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Nuclear Magnetic Resonance Lipid Fractionation Total TriglyceridesWeek 26 (n=367, 368)-1.7 mg/dLStandard Error 3.58
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Nuclear Magnetic Resonance Lipid Fractionation Total TriglyceridesWeek 42 (n=367, 369)-6.4 mg/dLStandard Error 3.6
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Nuclear Magnetic Resonance Lipid Fractionation Total TriglyceridesWeek 52 (n=367, 369)-6.9 mg/dLStandard Error 3.35
Pioglitazone 45 mg + MetforminChange From Baseline in Nuclear Magnetic Resonance Lipid Fractionation Total TriglyceridesWeek 52 (n=367, 369)-0.7 mg/dLStandard Error 3.34
Pioglitazone 45 mg + MetforminChange From Baseline in Nuclear Magnetic Resonance Lipid Fractionation Total TriglyceridesWeek 12 (n=357, 361)0.2 mg/dLStandard Error 3.23
Pioglitazone 45 mg + MetforminChange From Baseline in Nuclear Magnetic Resonance Lipid Fractionation Total TriglyceridesWeek 42 (n=367, 369)0.7 mg/dLStandard Error 3.59
Pioglitazone 45 mg + MetforminChange From Baseline in Nuclear Magnetic Resonance Lipid Fractionation Total TriglyceridesWeek 26 (n=367, 368)0.8 mg/dLStandard Error 3.58
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.19795% CI: [-15.4, 3.2]ANCOVA
Secondary

Change From Baseline in Plasminogen Activator Inhibitor-1

Change from Baseline in plasminogen activator inhibitor-1 (PAI-1) was assessed at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline PAI-1 as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Plasminogen Activator Inhibitor-1Week 12 (n=322, 330)-3.23 ng/mlStandard Error 1.483
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Plasminogen Activator Inhibitor-1Week 26 (n=342, 343)-2.83 ng/mlStandard Error 1.523
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Plasminogen Activator Inhibitor-1Week 42 (n=346, 344)-2.08 ng/mlStandard Error 1.429
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Plasminogen Activator Inhibitor-1Week 52 (n=346, 344)-2.92 ng/mlStandard Error 1.234
Pioglitazone 45 mg + MetforminChange From Baseline in Plasminogen Activator Inhibitor-1Week 52 (n=346, 344)-4.70 ng/mlStandard Error 1.237
Pioglitazone 45 mg + MetforminChange From Baseline in Plasminogen Activator Inhibitor-1Week 12 (n=322, 330)-3.59 ng/mlStandard Error 1.464
Pioglitazone 45 mg + MetforminChange From Baseline in Plasminogen Activator Inhibitor-1Week 42 (n=346, 344)-4.89 ng/mlStandard Error 1.434
Pioglitazone 45 mg + MetforminChange From Baseline in Plasminogen Activator Inhibitor-1Week 26 (n=342, 343)-3.63 ng/mlStandard Error 1.52
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.30895% CI: [-1.65, 5.22]ANCOVA
Secondary

Change From Baseline in Proinsulin/Insulin Ratio

The ratio of proinsulin to insulin was calculated as proinsulin (pmol/L) / insulin (μIU/mL) at weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52 relative to the Baseline value. Least squares means were from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline fasting proinsulin/insulin ratio as covariates.

Time frame: Baseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 8 (n=380, 375)-0.049 ratioStandard Error 0.0148
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 26 (n=381, 375)-0.036 ratioStandard Error 0.0081
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 16 (n=381, 375)-0.044 ratioStandard Error 0.01
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 34 (n=381, 375)-0.038 ratioStandard Error 0.0084
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 12 (n=380, 375)-0.053 ratioStandard Error 0.0105
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 42 (n=381, 375)-0.047 ratioStandard Error 0.0083
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 20 (n=381, 375)-0.037 ratioStandard Error 0.0085
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 52 (n=381, 375)-0.048 ratioStandard Error 0.008
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 4 (n=341, 325)-0.046 ratioStandard Error 0.0095
Pioglitazone 45 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 52 (n=381, 375)-0.007 ratioStandard Error 0.0081
Pioglitazone 45 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 4 (n=341, 325)-0.005 ratioStandard Error 0.0097
Pioglitazone 45 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 8 (n=380, 375)-0.001 ratioStandard Error 0.0149
Pioglitazone 45 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 12 (n=380, 375)0.004 ratioStandard Error 0.0106
Pioglitazone 45 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 16 (n=381, 375)0.002 ratioStandard Error 0.0101
Pioglitazone 45 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 20 (n=381, 375)-0.004 ratioStandard Error 0.0085
Pioglitazone 45 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 26 (n=381, 375)-0.015 ratioStandard Error 0.0081
Pioglitazone 45 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 34 (n=381, 375)-0.004 ratioStandard Error 0.0085
Pioglitazone 45 mg + MetforminChange From Baseline in Proinsulin/Insulin RatioWeek 42 (n=381, 375)-0.010 ratioStandard Error 0.0083
Comparison: Comparison of change from Baseline at Week 52.p-value: <0.00195% CI: [-0.063, -0.018]ANCOVA
Secondary

Change From Baseline in Total Cholesterol

Change from Baseline in total cholesterol was assessed at Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline total cholesterol as covariates.

Time frame: Baseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Total CholesterolWeek 8 (n=399, 395)-4.0 mg/dLStandard Error 1.4
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Total CholesterolWeek 26 (n=399, 395)-2.1 mg/dLStandard Error 1.62
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Total CholesterolWeek 16 (n=399, 395)-4.3 mg/dLStandard Error 1.56
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Total CholesterolWeek 34 (n=399, 395)-3.5 mg/dLStandard Error 1.61
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Total CholesterolWeek 12 (n=399, 395)-3.6 mg/dLStandard Error 1.44
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Total CholesterolWeek 42 (n=399, 395)-3.8 mg/dLStandard Error 1.62
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Total CholesterolWeek 20 (n=399, 395)-3.9 mg/dLStandard Error 1.55
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Total CholesterolWeek 52 (n=399, 395)-4.4 mg/dLStandard Error 1.58
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Total CholesterolWeek 4 (n=397, 393)-5.2 mg/dLStandard Error 1.28
Pioglitazone 45 mg + MetforminChange From Baseline in Total CholesterolWeek 52 (n=399, 395)-0.1 mg/dLStandard Error 1.59
Pioglitazone 45 mg + MetforminChange From Baseline in Total CholesterolWeek 4 (n=397, 393)-1.9 mg/dLStandard Error 1.29
Pioglitazone 45 mg + MetforminChange From Baseline in Total CholesterolWeek 8 (n=399, 395)0.3 mg/dLStandard Error 1.4
Pioglitazone 45 mg + MetforminChange From Baseline in Total CholesterolWeek 12 (n=399, 395)1.1 mg/dLStandard Error 1.45
Pioglitazone 45 mg + MetforminChange From Baseline in Total CholesterolWeek 16 (n=399, 395)-0.4 mg/dLStandard Error 1.57
Pioglitazone 45 mg + MetforminChange From Baseline in Total CholesterolWeek 20 (n=399, 395)-0.5 mg/dLStandard Error 1.56
Pioglitazone 45 mg + MetforminChange From Baseline in Total CholesterolWeek 26 (n=399, 395)1.0 mg/dLStandard Error 1.63
Pioglitazone 45 mg + MetforminChange From Baseline in Total CholesterolWeek 34 (n=399, 395)-0.7 mg/dLStandard Error 1.62
Pioglitazone 45 mg + MetforminChange From Baseline in Total CholesterolWeek 42 (n=399, 395)0.0 mg/dLStandard Error 1.62
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.05895% CI: [-8.6, 0.1]ANCOVA
Secondary

Change From Baseline in Triglycerides

Change from Baseline in triglycerides was assessed at Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline triglycerides as covariates.

Time frame: Baseline and Weeks 4, 8, 12, 16, 20, 26, 34, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in TriglyceridesWeek 8 (n=399, 395)-17.9 mg/dLStandard Error 3.61
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in TriglyceridesWeek 26 (n=399, 395)-11.9 mg/dLStandard Error 3.98
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in TriglyceridesWeek 16 (n=399, 395)-16.3 mg/dLStandard Error 3.36
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in TriglyceridesWeek 34 (n=399, 395)-7.4 mg/dLStandard Error 3.98
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in TriglyceridesWeek 12 (n=399, 395)-16.1 mg/dLStandard Error 3.69
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in TriglyceridesWeek 42 (n=399, 395)-14.6 mg/dLStandard Error 3.67
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in TriglyceridesWeek 20 (n=399, 395)-12.7 mg/dLStandard Error 3.68
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in TriglyceridesWeek 52 (n=399, 395)-16.4 mg/dLStandard Error 3.47
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in TriglyceridesWeek 4 (n=397, 393)-16.4 mg/dLStandard Error 2.98
Pioglitazone 45 mg + MetforminChange From Baseline in TriglyceridesWeek 52 (n=399, 395)-7.8 mg/dLStandard Error 3.49
Pioglitazone 45 mg + MetforminChange From Baseline in TriglyceridesWeek 4 (n=397, 393)-12.2 mg/dLStandard Error 3
Pioglitazone 45 mg + MetforminChange From Baseline in TriglyceridesWeek 8 (n=399, 395)-12.3 mg/dLStandard Error 3.63
Pioglitazone 45 mg + MetforminChange From Baseline in TriglyceridesWeek 12 (n=399, 395)-4.5 mg/dLStandard Error 3.71
Pioglitazone 45 mg + MetforminChange From Baseline in TriglyceridesWeek 16 (n=399, 395)-9.4 mg/dLStandard Error 3.38
Pioglitazone 45 mg + MetforminChange From Baseline in TriglyceridesWeek 20 (n=399, 395)-8.5 mg/dLStandard Error 3.7
Pioglitazone 45 mg + MetforminChange From Baseline in TriglyceridesWeek 26 (n=399, 395)-6.3 mg/dLStandard Error 4
Pioglitazone 45 mg + MetforminChange From Baseline in TriglyceridesWeek 34 (n=399, 395)-8.1 mg/dLStandard Error 4
Pioglitazone 45 mg + MetforminChange From Baseline in TriglyceridesWeek 42 (n=399, 395)-7.0 mg/dLStandard Error 3.69
Comparison: Comparison of change from Baseline at Week 52.p-value: 0.0895% CI: [-18.3, 1]ANCOVA
Secondary

Change From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron Particles

The change from Baseline in levels of total VLDL/chylomicron particles and large VLDL/chylomicron particles was assessed by NMR lipid fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline VLDL/chylomicron particles as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesTotal Particles - Week 12 (n=357, 361)-0.59 nmol/LStandard Error 1.814
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesTotal Particles - Week 26 (n=367, 368)1.27 nmol/LStandard Error 1.94
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesTotal Particles - Week 42 (n=367, 369)-1.35 nmol/LStandard Error 1.916
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesTotal Particles - Week 52 (n=367, 369)-1.20 nmol/LStandard Error 1.89
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesLarge Particles - Week 12 (n=357, 361)-0.83 nmol/LStandard Error 0.247
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesLarge Particles - Week 26 (n=367, 368)-0.39 nmol/LStandard Error 0.282
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesLarge Particles - Week 42 (n=367, 369)-0.72 nmol/LStandard Error 0.277
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesLarge Particles - Week 52 (n=367, 369)-0.66 nmol/LStandard Error 0.26
Pioglitazone 45 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesLarge Particles - Week 52 (n=367, 369)-0.46 nmol/LStandard Error 0.26
Pioglitazone 45 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesTotal Particles - Week 12 (n=357, 361)2.39 nmol/LStandard Error 1.805
Pioglitazone 45 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesLarge Particles - Week 12 (n=357, 361)-0.27 nmol/LStandard Error 0.246
Pioglitazone 45 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesTotal Particles - Week 26 (n=367, 368)3.09 nmol/LStandard Error 1.937
Pioglitazone 45 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesLarge Particles - Week 42 (n=367, 369)-0.38 nmol/LStandard Error 0.277
Pioglitazone 45 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesTotal Particles - Week 42 (n=367, 369)1.64 nmol/LStandard Error 1.911
Pioglitazone 45 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesLarge Particles - Week 26 (n=367, 368)-0.32 nmol/LStandard Error 0.281
Pioglitazone 45 mg + MetforminChange From Baseline in Very Low Density Lipoprotein (VLDL) / Chylomicron ParticlesTotal Particles - Week 52 (n=367, 369)3.03 nmol/LStandard Error 1.885
Secondary

Change From Baseline in VLDL / Chylomicron Triglycerides

The change from Baseline in levels of VLDL/chylomicron triglycerides was assessed by NMR lipid fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline VLDL/chylomicron triglycerides as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in VLDL / Chylomicron TriglyceridesWeek 12 (n=357, 361)-7.6 mg/dLStandard Error 3.22
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in VLDL / Chylomicron TriglyceridesWeek 26 (n=367, 368)-1.3 mg/dLStandard Error 3.54
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in VLDL / Chylomicron TriglyceridesWeek 42 (n=367, 369)-5.4 mg/dLStandard Error 3.6
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in VLDL / Chylomicron TriglyceridesWeek 52 (n=367, 369)-6.1 mg/dLStandard Error 3.3
Pioglitazone 45 mg + MetforminChange From Baseline in VLDL / Chylomicron TriglyceridesWeek 52 (n=367, 369)-1.5 mg/dLStandard Error 3.29
Pioglitazone 45 mg + MetforminChange From Baseline in VLDL / Chylomicron TriglyceridesWeek 12 (n=357, 361)-0.2 mg/dLStandard Error 3.2
Pioglitazone 45 mg + MetforminChange From Baseline in VLDL / Chylomicron TriglyceridesWeek 42 (n=367, 369)0.2 mg/dLStandard Error 3.59
Pioglitazone 45 mg + MetforminChange From Baseline in VLDL / Chylomicron TriglyceridesWeek 26 (n=367, 368)0.2 mg/dLStandard Error 3.54
Secondary

Change From Baseline in VLDL Particles

The change from Baseline in levels of medium VLDL particles and small VLDL particles was assessed by NMR fractionation at Weeks 12, 26, 42 and 52. Least squares means are from an ANCOVA model with treatment, study schedule and geographic region as class variables, and baseline metformin dose and baseline VLDL particles as covariates.

Time frame: Baseline and Weeks 12, 26, 42 and 52.

Population: The full analysis set where Baseline and at least 1 postbaseline value were available. Last observation carried forward (LOCF) imputation was utilized.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in VLDL ParticlesMedium Particles - Week 12 (n=357, 361)-0.09 nmol/LStandard Error 1.152
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in VLDL ParticlesMedium Particles - Week 26 (n=367, 368)1.30 nmol/LStandard Error 1.208
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in VLDL ParticlesMedium Particles - Week 42 (n=367, 369)1.03 nmol/LStandard Error 1.307
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in VLDL ParticlesMedium Particles - Week 52 (n=367, 369)0.26 nmol/LStandard Error 1.166
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in VLDL ParticlesSmall Particles - Week 12 (n=357, 361)-0.04 nmol/LStandard Error 1.077
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in VLDL ParticlesSmall Particles - Week 26 (n=367, 368)0.07 nmol/LStandard Error 1.121
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in VLDL ParticlesSmall Particles - Week 42 (n=367, 369)-1.86 nmol/LStandard Error 1.12
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminChange From Baseline in VLDL ParticlesSmall Particles - Week 52 (n=367, 369)-1.02 nmol/LStandard Error 1.192
Pioglitazone 45 mg + MetforminChange From Baseline in VLDL ParticlesSmall Particles - Week 52 (n=367, 369)1.58 nmol/LStandard Error 1.189
Pioglitazone 45 mg + MetforminChange From Baseline in VLDL ParticlesMedium Particles - Week 12 (n=357, 361)1.74 nmol/LStandard Error 1.146
Pioglitazone 45 mg + MetforminChange From Baseline in VLDL ParticlesSmall Particles - Week 12 (n=357, 361)1.30 nmol/LStandard Error 1.072
Pioglitazone 45 mg + MetforminChange From Baseline in VLDL ParticlesMedium Particles - Week 26 (n=367, 368)2.23 nmol/LStandard Error 1.207
Pioglitazone 45 mg + MetforminChange From Baseline in VLDL ParticlesSmall Particles - Week 42 (n=367, 369)-0.21 nmol/LStandard Error 1.117
Pioglitazone 45 mg + MetforminChange From Baseline in VLDL ParticlesMedium Particles - Week 42 (n=367, 369)2.43 nmol/LStandard Error 1.303
Pioglitazone 45 mg + MetforminChange From Baseline in VLDL ParticlesSmall Particles - Week 26 (n=367, 368)1.47 nmol/LStandard Error 1.119
Pioglitazone 45 mg + MetforminChange From Baseline in VLDL ParticlesMedium Particles - Week 52 (n=367, 369)2.12 nmol/LStandard Error 1.163
Secondary

Percentage of Participants Meeting Hyperglycemic Rescue Criteria

Rescue was defined as meeting 1 of the following criteria, confirmed by a 2nd sample drawn within 7 days after the first sample and analyzed by the central laboratory: 1. After more than 2 weeks of treatment but prior to the Week 4 Visit: A single fasting plasma glucose (FPG) ≥275 mg/dL; 2. From the Week 4 Visit but prior to the Week 8 Visit: A single FPG ≥250 mg/dL; 3. From the Week 8 Visit but prior to the Week 12 Visit: A single FPG ≥225 mg/dL; 4. From the Week 12 Visit through the End-of-Treatment Visit: HbA1c ≥8.5% AND ≤0.5% reduction in HbA1c as compared with the baseline HbA1c.

Time frame: Baseline to Week 52

Population: Full Analysis Set including patients with a postbaseline visit.

ArmMeasureValue (NUMBER)
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants Meeting Hyperglycemic Rescue Criteria10.9 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants Meeting Hyperglycemic Rescue Criteria21.7 percentage of participants
Comparison: Comparison of incidence of hyperglycemic rescue through Week 52.p-value: <0.001Extended Mantel Haenszel Test
Secondary

Percentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 0.5%

Clinical response at Weeks 26 and 52 was assessed by the percentage of participants with a decrease from Baseline in HbA1c of greater than or equal to 0.5%.

Time frame: Weeks 26 and 52.

Population: The full analysis set. Patients who did not complete the scheduled Week 26 or Week 52 visit were assessed based on their response at the time of discontinuation.

ArmMeasureGroupValue (NUMBER)
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 0.5%Week 2672.0 percentage of participants
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 0.5%Week 5260.9 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 0.5%Week 2642.1 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 0.5%Week 5237.6 percentage of participants
Secondary

Percentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 1.0%

Clinical response at Weeks 26 and 52 was assessed by the percentage of participants with a decrease from Baseline in HbA1c of greater than or equal to 1.0%.

Time frame: Weeks 26 and 52.

Population: The full analysis set. Patients who did not complete the scheduled Week 26 or Week 52 visit were assessed based on their response at the time of discontinuation.

ArmMeasureGroupValue (NUMBER)
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 1.0%Week 2642.3 percentage of participants
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 1.0%Week 5235.6 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 1.0%Week 2620.3 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 1.0%Week 5217.3 percentage of participants
Secondary

Percentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 1.5%

Clinical response at Weeks 26 and 52 was assessed by the percentage of participants with a decrease from Baseline in HbA1c of greater than or equal to 1.5%.

Time frame: Weeks 26 and 52.

Population: The full analysis set. Patients who did not complete the scheduled Week 26 or Week 52 visit were assessed based on their response at the time of discontinuation.

ArmMeasureGroupValue (NUMBER)
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 1.5%Week 2618.6 percentage of participants
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 1.5%Week 5217.1 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 1.5%Week 267.5 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 1.5%Week 528.0 percentage of participants
Secondary

Percentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 2.0%

Clinical response at Weeks 26 and 52 was assessed by the percentage of participants with a decrease from Baseline in HbA1c of greater than or equal to 2.0%.

Time frame: Weeks 26 and 52.

Population: The full analysis set. Patients who did not complete the scheduled Week 26 or Week 52 visit were assessed based on their response at the time of discontinuation.

ArmMeasureGroupValue (NUMBER)
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 2.0%Week 268.2 percentage of participants
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 2.0%Week 527.9 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 2.0%Week 263.0 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With a Decrease in Glycosylated Hemoglobin ≥ 2.0%Week 523.3 percentage of participants
Secondary

Percentage of Participants With Glycosylated Hemoglobin ≤ 6.5%

Clinical response at Weeks 26 and 52 was assessed by the percentage of participants with HbA1c less than or equal to 6.5%.

Time frame: Weeks 26 and 52.

Population: The full analysis set. Patients who did not complete the scheduled Week 26 or Week 52 visit were assessed based on their response at the time of discontinuation.

ArmMeasureGroupValue (NUMBER)
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With Glycosylated Hemoglobin ≤ 6.5%Week 2613.9 percentage of participants
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With Glycosylated Hemoglobin ≤ 6.5%Week 528.7 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With Glycosylated Hemoglobin ≤ 6.5%Week 267.8 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With Glycosylated Hemoglobin ≤ 6.5%Week 524.3 percentage of participants
Secondary

Percentage of Participants With Glycosylated Hemoglobin ≤ 7.0%

Clinical response at Weeks 26 and 52 was assessed by the percentage of participants with HbA1c less than or equal to 7%.

Time frame: Weeks 26 and 52.

Population: The full analysis set. Patients who did not complete the scheduled Week 26 or Week 52 visit were assessed based on their response at the time of discontinuation.

ArmMeasureGroupValue (NUMBER)
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With Glycosylated Hemoglobin ≤ 7.0%Week 2639.1 percentage of participants
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With Glycosylated Hemoglobin ≤ 7.0%Week 5233.2 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With Glycosylated Hemoglobin ≤ 7.0%Week 2625.8 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With Glycosylated Hemoglobin ≤ 7.0%Week 5221.3 percentage of participants
Secondary

Percentage of Participants With Glycosylated Hemoglobin ≤ 7.5%

Clinical response at Weeks 26 and 52 was assessed by the percentage of participants with HbA1c less than or equal to 7.5%.

Time frame: Weeks 26 and 52.

Population: The full analysis set. Patients who did not complete the scheduled Week 26 or Week 52 visit were assessed based on their response at the time of discontinuation.

ArmMeasureGroupValue (NUMBER)
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With Glycosylated Hemoglobin ≤ 7.5%Week 2664.9 percentage of participants
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With Glycosylated Hemoglobin ≤ 7.5%Week 5259.9 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With Glycosylated Hemoglobin ≤ 7.5%Week 2647.1 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With Glycosylated Hemoglobin ≤ 7.5%Week 5244.1 percentage of participants
Secondary

Percentage of Participants With Marked Hyperglycemia

Marked Hyperglycemia is defined as fasting plasma glucose greater than or equal to 200 mg/dL (11.10 mmol/L).

Time frame: Baseline to Week 52

Population: Full Analysis Set including patients with at least one non-missing fasting plasma glucose result in each treatment group.

ArmMeasureValue (NUMBER)
Alogliptin 25 mg + Pioglitazone 30 mg + MetforminPercentage of Participants With Marked Hyperglycemia27.3 percentage of participants
Pioglitazone 45 mg + MetforminPercentage of Participants With Marked Hyperglycemia36.1 percentage of participants
Comparison: Comparison of incidence of marked hyperglycemia through Week 52.p-value: <0.001Extended Mantel Haenszel Test

Source: ClinicalTrials.gov · Data processed: Mar 9, 2026