Skip to content

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

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

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00286442
Enrollment
527
Registered
2006-02-03
Start date
2006-03-31
Completion date
2007-06-30
Last updated
2012-02-03

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, Drug Therapy

Brief summary

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

Detailed description

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

Interventions

Alogliptin 12.5 mg, tablets, orally, once daily and metformin for up to 26 weeks.

DRUGMetformin

Alogliptin placebo-matching tablets, orally, once daily and metformin for up to 26 weeks.

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

* Diagnosis of type 2 diabetes mellitus currently treated with metformin alone but, experiencing inadequate glycemic control. The participant should have received the metformin monotherapy for at least the 3 months prior to Screening; and must have a stable dose of greater than or equal to 1500 mg metformin for at least 8 weeks prior to randomization. Participants with a maximum tolerated dose that is documented to be less than 1500 mg of metformin may also be enrolled if this dose has been stable for 8 weeks prior to randomization. * No treatment with antidiabetic agents other than metformin within the 3 months prior to Screening. (Exception: if a participant has received other antidiabetic therapy for less than 7 days within the 3 months prior to Screening.) * Body mass index greater than or equal to 23 kg/m2 and less than or equal to 45 kg/m2 * Fasting C-peptide concentration greater than or equal to 0.8 ng per mL. (If this screening criterion is not met, the participant still qualifies if C-peptide is greater than or equal to 1.5 ng per mL after a challenge test. * Glycosylated hemoglobin concentration between 7.0% and 10.0%, inclusive * If regular use of other, non-excluded medications, must be on a stable dose for at least the 4 weeks prior to Screening. However, as needed use of prescription or over-the-counter medications is allowed at the discretion of the investigator. * Systolic blood pressure less than or equal to 180 mm Hg and diastolic pressure less than or equal to 110 mm Hg * Hemoglobin greater than or equal to 12 g per dL for males and greater than or equal to 10 g per dL for females * Alanine aminotransferase less than or equal to 3 time the upper limit of normal * Serum creatinine less than1.5 mg per dL for males and less than 1.4 mg per dL for females * Thyroid-stimulating hormone level less than or equal to the upper limit of the normal range and the participant is clinically euthyroid. * Neither pregnant nor lactating. * Female participants of childbearing potential must be practicing adequate contraception. Adequate contraception must be practiced for the duration of participation in the study. * Able and willing to monitor their own blood glucose concentrations with a home glucose monitor * No major illness or debility that in the investigator's opinion prohibits the participant from completing the study * Able and willing to provide written informed consent

Exclusion criteria

* Urine albumin to creatinine ratio of greater than 1000 μg per mg at Screening. If elevated, the participant may be rescreened within 1 week. * History of cancer, other than squamous cell or basal cell carcinoma of the skin, that has not been in full remission for at least 5 years prior to Screening. (A history of treated cervical intraepithelial neoplasia I or cervical intraepithelial neoplasia II is allowed.) * History of laser treatment for proliferative diabetic retinopathy within the 6 months prior to Screening * History of treated diabetic gastric paresis * New York Heart Association Class III or IV heart failure regardless of therapy. Currently treated participants who are stable at Class I or II are candidates for the study. * History of coronary angioplasty, coronary stent placement, coronary bypass surgery, or myocardial infarction within the 6 months prior to Screening * History of any hemoglobinopathy that may affect determination of glycosylated hemoglobin * History of infection with hepatitis B, hepatitis C, or human immunodeficiency virus * History of a psychiatric disorder that will affect the participant's ability to participate in the study * History of angioedema in association with use of angiotensin-converting enzyme inhibitors or angiotensin-II receptor inhibitors * History of alcohol or substance abuse within the 2 years prior to Screening * Receipt of any investigational drug within the 30 days prior to Screening or a history of receipt of an investigational antidiabetic drug within the 3 months prior to Screening * Prior treatment in an investigational study of alogliptin * Excluded Medications: * Treatment with antidiabetic agents other than study drug or metformin is not allowed within the 3 months prior to Screening and through the completion of the end-of treatment/early termination procedures. * Treatment with weight-loss drugs, any investigational antidiabetics, or oral or systemically injected glucocorticoids is not allowed from 3 months prior to randomization through the completion of the end-of-treatment/early termination procedures. Inhaled corticosteroids are allowed. * Participants must be instructed not to take any medications, including over-the-counter products, without first consulting with the investigator.

Design outcomes

Primary

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

Secondary

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

Countries

Argentina, Australia, Brazil, Chile, Czechia, Germany, Guatemala, Hungary, India, Mexico, Netherlands, New Zealand, Peru, Poland, South Africa, United Kingdom, United States

Participant flow

Recruitment details

Participants enrolled at 115 investigative sites in Australia, Brazil, Chile, Germany, Guatemala, Hungary, India, Mexico, New Zealand, The Netherlands, Poland, South Africa, Spain, and the United States from 10 March 2006 to 12 June 2007.

Pre-assignment details

Participants with a historical diagnosis of type 2 diabetes mellitus who were inadequately controlled while receiving a stable dose of metformin monotherapy were enrolled in one of 3, once-daily (QD) treatment groups.

Participants by arm

ArmCount
Alogliptin 12.5 mg QD
Alogliptin 12.5 mg, tablets, orally, once daily and metformin for up to 26 weeks.
213
Alogliptin 25 mg QD
Alogliptin 25 mg, tablets, orally, once daily and metformin for up to 26 weeks.
210
Placebo
Alogliptin placebo-matching tablets, orally, once daily and metformin for up to 26 weeks.
104
Total527

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdministrative Error110
Overall StudyAdverse Event761
Overall StudyHyperglycemic Rescue191725
Overall StudyLost to Follow-up521
Overall StudyPhysician Decision111
Overall StudyProtocol Violation242
Overall StudyWithdrawal by Subject2142

Baseline characteristics

CharacteristicAlogliptin 12.5 mg QDAlogliptin 25 mg QDPlaceboTotal
Age, Customized
<65 years
173 participants179 participants83 participants435 participants
Age, Customized
≥65 years
40 participants31 participants21 participants92 participants
Sex: Female, Male
Female
112 Participants96 Participants54 Participants262 Participants
Sex: Female, Male
Male
101 Participants114 Participants50 Participants265 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
62 / 21341 / 20737 / 104
serious
Total, serious adverse events
6 / 2138 / 2074 / 104

Outcome results

Primary

Change From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 26.

The change in the value of glycosylated hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at week 26 or final visit and glycosylated hemoglobin collected at baseline.

Time frame: Baseline and Week 26.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had an HbA1c measurement at baseline and at Week 26.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 26.-0.61 percentage of Glycosylated HemoglobinStandard Error 0.053
Alogliptin 25 mg QDChange From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 26.-0.59 percentage of Glycosylated HemoglobinStandard Error 0.054
PlaceboChange From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 26.-0.10 percentage of Glycosylated HemoglobinStandard Error 0.076
Comparison: Null Hypothesis: No difference between treatment and placebo arms in change from baseline in glycosylated hemoglobin at wk 26. Sample size calculated based on normally distributed means. For comparison of either dose vs. placebo (2-sample t-test), study sample size \>=500 participants had 95% power to detect a treatment difference as small as 0.4% in the supportive per protocol analysis set assuming SD=0.8%, 2-sided \>0.05 significance level and \>=80% of participants meeting per protocol criteria.p-value: <0.00195% CI: [-0.68, -0.32]ANCOVA
Comparison: Null Hypothesis: No difference between treatment and placebo arms in change from baseline in glycosylated hemoglobin at week 26. Sample size calculated based on normally distributed means. For comparison of either dose vs. placebo (2-sample t-test), study sample size \>=500 participants had 95% power to detect a treatment difference as small as 0.4% in the per protocol analysis set assuming SD=0.8%, 2-sided test at 0.05 significance level and \>=80% of participants meeting per protocol criteria.p-value: <0.00195% CI: [-0.67, -0.3]ANCOVA
Secondary

Change From Baseline in Body Weight (Week 12).

The change between Body Weight measured at week 12 and Body Weight measured at baseline.

Time frame: Baseline and Week 12.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had weight measurements at baseline and at Week 12. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Body Weight (Week 12).-0.28 kgStandard Error 0.161
Alogliptin 25 mg QDChange From Baseline in Body Weight (Week 12).-0.64 kgStandard Error 0.164
PlaceboChange From Baseline in Body Weight (Week 12).-0.57 kgStandard Error 0.227
p-value: 0.30595% CI: [-0.26, 0.83]ANCOVA
p-value: 0.78895% CI: [-0.63, 0.47]ANCOVA
Secondary

Change From Baseline in Body Weight (Week 20).

The change between Body Weight measured at week 20 and Body Weight measured at baseline.

Time frame: Baseline and Week 20.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had weight measurements at baseline and at Week 20. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Body Weight (Week 20).-0.38 kgStandard Error 0.178
Alogliptin 25 mg QDChange From Baseline in Body Weight (Week 20).-0.58 kgStandard Error 0.182
PlaceboChange From Baseline in Body Weight (Week 20).-0.40 kgStandard Error 0.252
p-value: 0.9395% CI: [-0.58, 0.63]ANCOVA
p-value: 0.55995% CI: [-0.79, 0.43]ANCOVA
Secondary

Change From Baseline in Body Weight (Week 26).

The change between Body Weight measured at week 26 or final visit and Body Weight measured at baseline.

Time frame: Baseline and Week 26.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had weight measurements at baseline and at Week 26. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Body Weight (Week 26).-0.39 kgStandard Error 0.194
Alogliptin 25 mg QDChange From Baseline in Body Weight (Week 26).-0.67 kgStandard Error 0.198
PlaceboChange From Baseline in Body Weight (Week 26).-0.39 kgStandard Error 0.274
p-value: 0.99695% CI: [-0.66, 0.66]ANCOVA
p-value: 0.40795% CI: [-0.94, 0.38]ANCOVA
Secondary

Change From Baseline in Body Weight (Week 8).

The change between Body Weight measured at week 8 and Body Weight measured at baseline.

Time frame: Baseline and Week 8.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had weight measurements at baseline and at Week 8. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Body Weight (Week 8).-0.30 kgStandard Error 0.134
Alogliptin 25 mg QDChange From Baseline in Body Weight (Week 8).-0.53 kgStandard Error 0.135
PlaceboChange From Baseline in Body Weight (Week 8).-0.12 kgStandard Error 0.186
p-value: 0.43995% CI: [-0.63, 0.27]ANCOVA
p-value: 0.07595% CI: [-0.86, 0.04]ANCOVA
Secondary

Change From Baseline in C-peptide (Week 12).

The change between the value of C-peptide collected at week 12 and C-peptide collected at baseline.

Time frame: Baseline and Week 12.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had C-peptide measurements at baseline and at Week 12. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in C-peptide (Week 12).0.154 ng/mLStandard Error 0.0915
Alogliptin 25 mg QDChange From Baseline in C-peptide (Week 12).0.246 ng/mLStandard Error 0.0932
PlaceboChange From Baseline in C-peptide (Week 12).-0.033 ng/mLStandard Error 0.1309
p-value: 0.24395% CI: [-0.127, 0.501]ANCOVA
p-value: 0.08395% CI: [-0.037, 0.595]ANCOVA
Secondary

Change From Baseline in C-peptide (Week 16).

The change between the value of C-peptide collected at week 16 and C-peptide collected at baseline.

Time frame: Baseline and Week 16.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had C-peptide measurements at baseline and at Week 16. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in C-peptide (Week 16).0.138 ng/mLStandard Error 0.0894
Alogliptin 25 mg QDChange From Baseline in C-peptide (Week 16).0.250 ng/mLStandard Error 0.091
PlaceboChange From Baseline in C-peptide (Week 16).-0.018 ng/mLStandard Error 0.128
p-value: 0.32195% CI: [-0.152, 0.463]ANCOVA
p-value: 0.08995% CI: [-0.041, 0.577]ANCOVA
Secondary

Change From Baseline in C-peptide (Week 20).

The change between the value of C-peptide collected at week 20 and C-peptide collected at baseline.

Time frame: Baseline and Week 20.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had C-peptide measurements at baseline and at Week 20. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in C-peptide (Week 20).0.007 ng/mLStandard Error 0.0803
Alogliptin 25 mg QDChange From Baseline in C-peptide (Week 20).0.054 ng/mLStandard Error 0.0818
PlaceboChange From Baseline in C-peptide (Week 20).-0.137 ng/mLStandard Error 0.1149
p-value: 0.30595% CI: [-0.132, 0.42]ANCOVA
p-value: 0.17795% CI: [-0.086, 0.468]ANCOVA
Secondary

Change From Baseline in C-peptide (Week 26).

The change between the value of C-peptide collected at week 26 or final visit and C-peptide collected at baseline.

Time frame: Baseline and Week 26.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had C-peptide measurements at baseline and at Week 26. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in C-peptide (Week 26).-0.083 ng/mLStandard Error 0.0833
Alogliptin 25 mg QDChange From Baseline in C-peptide (Week 26).-0.214 ng/mLStandard Error 0.0848
PlaceboChange From Baseline in C-peptide (Week 26).-0.476 ng/mLStandard Error 0.1192
p-value: 0.00795% CI: [0.107, 0.68]ANCOVA
p-value: 0.07495% CI: [-0.025, 0.55]ANCOVA
Secondary

Change From Baseline in C-peptide (Week 4).

The change between the value of C-peptide collected at week 4 and C-peptide collected at baseline.

Time frame: Baseline and Week 4.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had C-peptide measurements at baseline and at Week 4. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in C-peptide (Week 4).0.222 ng/mLStandard Error 0.0893
Alogliptin 25 mg QDChange From Baseline in C-peptide (Week 4).0.190 ng/mLStandard Error 0.0897
PlaceboChange From Baseline in C-peptide (Week 4).-0.114 ng/mLStandard Error 0.1273
p-value: 0.03195% CI: [0.03, 0.642]ANCOVA
p-value: 0.05195% CI: [-0.002, 0.611]ANCOVA
Secondary

Change From Baseline in C-peptide (Week 8).

The change between the value of C-peptide collected at week 8 and C-peptide collected at baseline.

Time frame: Baseline and Week 8.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had C-peptide measurements at baseline and at Week 8. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in C-peptide (Week 8).0.215 ng/mLStandard Error 0.0864
Alogliptin 25 mg QDChange From Baseline in C-peptide (Week 8).0.238 ng/mLStandard Error 0.0884
PlaceboChange From Baseline in C-peptide (Week 8).0.127 ng/mLStandard Error 0.1236
p-value: 0.56395% CI: [-0.209, 0.384]ANCOVA
p-value: 0.46795% CI: [-0.188, 0.41]ANCOVA
Secondary

Change From Baseline in Fasting Plasma Glucose (Week 1).

The change between the value of fasting plasma glucose collected at final visit or week 1 and fasting plasma glucose collected at baseline.

Time frame: Baseline and Week 1.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a fasting plasma glucose measurement at baseline and at Week 1.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 1).-14.3 mg/dLStandard Error 2.05
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 1).-12.5 mg/dLStandard Error 2.09
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 1).-0.6 mg/dLStandard Error 2.88
p-value: <0.00195% CI: [-20.7, -6.8]ANCOVA
p-value: <0.00195% CI: [-18.9, -4.9]ANCOVA
Secondary

Change From Baseline in Fasting Plasma Glucose (Week 12).

The change between the value of fasting plasma glucose collected at week 12 and fasting plasma glucose collected at baseline.

Time frame: Baseline and Week 12.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a fasting plasma glucose measurement at baseline and at Week 12. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 12).-16.9 mg/dLStandard Error 2.44
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 12).-16.8 mg/dLStandard Error 2.47
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 12).0.3 mg/dLStandard Error 3.48
p-value: <0.00195% CI: [-25.6, -8.9]ANCOVA
p-value: <0.00195% CI: [-25.4, -8.6]ANCOVA
Secondary

Change From Baseline in Fasting Plasma Glucose (Week 16).

The change between the value of fasting plasma glucose collected at week 16 and fasting plasma glucose collected at baseline.

Time frame: Baseline and Week 16.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a fasting plasma glucose measurement at baseline and at Week 16. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 16).-17.8 mg/dLStandard Error 2.43
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 16).-15.4 mg/dLStandard Error 2.46
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 16).1.3 mg/dLStandard Error 3.46
p-value: <0.00195% CI: [-27.4, -10.8]ANCOVA
p-value: <0.00195% CI: [-25, -8.3]ANCOVA
Secondary

Change From Baseline in Fasting Plasma Glucose (Week 2).

The change between the value of fasting plasma glucose collected at week 2 and fasting plasma glucose collected at baseline.

Time frame: Baseline and Week 2.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a fasting plasma glucose measurement at baseline and at Week 2.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 2).-17.4 mg/dLStandard Error 2.11
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 2).-17.6 mg/dLStandard Error 2.16
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 2).-0.7 mg/dLStandard Error 2.99
p-value: <0.00195% CI: [-23.9, -9.5]ANCOVA
p-value: <0.00195% CI: [-24.1, -9.6]ANCOVA
Secondary

Change From Baseline in Fasting Plasma Glucose (Week 20).

The change between the value of fasting plasma glucose collected at week 20 and fasting plasma glucose collected at baseline.

Time frame: Baseline and Week 20.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a fasting plasma glucose measurement at baseline and at Week 20. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 20).-18.1 mg/dLStandard Error 2.53
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 20).-15.6 mg/dLStandard Error 2.57
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 20).-0.1 mg/dLStandard Error 3.61
p-value: <0.00195% CI: [-26.7, -9.4]ANCOVA
p-value: <0.00195% CI: [-24.2, -6.8]ANCOVA
Secondary

Change From Baseline in Fasting Plasma Glucose (Week 26).

The change between the value of fasting plasma glucose collected at week 26 or final visit and fasting plasma glucose collected at baseline.

Time frame: Baseline and Week 26.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a fasting plasma glucose measurement at baseline and at Week 26. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 26).-18.7 mg/dLStandard Error 2.49
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 26).-17.4 mg/dLStandard Error 2.53
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 26).0.0 mg/dLStandard Error 3.55
p-value: <0.00195% CI: [-27.3, -10.2]ANCOVA
p-value: <0.00195% CI: [-25.9, -8.8]ANCOVA
Secondary

Change From Baseline in Fasting Plasma Glucose (Week 4).

The change between the value of fasting plasma glucose collected at week 4 and fasting plasma glucose collected at baseline.

Time frame: Baseline and Week 4.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a fasting plasma glucose measurement at baseline and at Week 2. Missing data imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 4).-18.4 mg/dLStandard Error 1.98
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 4).-18.1 mg/dLStandard Error 2.01
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 4).-0.6 mg/dLStandard Error 2.82
p-value: <0.00195% CI: [-24.6, -11]ANCOVA
p-value: <0.00195% CI: [-24.3, -10.6]ANCOVA
Secondary

Change From Baseline in Fasting Plasma Glucose (Week 8).

The change between the value of fasting plasma glucose collected at week 8 and fasting plasma glucose collected at baseline.

Time frame: Baseline and Week 8.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a fasting plasma glucose measurement at baseline and at Week 8. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 8).-19.6 mg/dLStandard Error 2.3
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 8).-17.2 mg/dLStandard Error 2.34
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 8).0.4 mg/dLStandard Error 3.29
p-value: <0.00195% CI: [-28, -12.2]ANCOVA
p-value: <0.00195% CI: [-25.6, -9.7]ANCOVA
Secondary

Change From Baseline in Fasting Proinsulin (Week 12).

The change between the value of fasting proinsulin collected at week 12 and fasting proinsulin collected at baseline.

Time frame: Baseline and Week 12.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a proinsulin measurement at baseline and at Week 12. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Fasting Proinsulin (Week 12).-2.6 pmol/LStandard Error 1.76
Alogliptin 25 mg QDChange From Baseline in Fasting Proinsulin (Week 12).-2.7 pmol/LStandard Error 1.8
PlaceboChange From Baseline in Fasting Proinsulin (Week 12).-1.3 pmol/LStandard Error 2.49
p-value: 0.65595% CI: [-7.4, 4.6]ANCOVA
p-value: 0.64595% CI: [-7.4, 4.6]ANCOVA
Secondary

Change From Baseline in Fasting Proinsulin (Week 16).

The change between the value of fasting proinsulin collected at week 16 and fasting proinsulin collected at baseline.

Time frame: Baseline and Week 16.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a proinsulin measurement at baseline and at Week 16. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Fasting Proinsulin (Week 16).-1.4 pmol/LStandard Error 1.6
Alogliptin 25 mg QDChange From Baseline in Fasting Proinsulin (Week 16).-2.7 pmol/LStandard Error 1.64
PlaceboChange From Baseline in Fasting Proinsulin (Week 16).-0.5 pmol/LStandard Error 2.26
p-value: 0.74895% CI: [-6.3, 4.6]ANCOVA
p-value: 0.43295% CI: [-7.7, 3.3]ANCOVA
Secondary

Change From Baseline in Fasting Proinsulin (Week 20).

The change between the value of fasting proinsulin collected at week 20 and fasting proinsulin collected at baseline.

Time frame: Baseline and Week 20.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a proinsulin measurement at baseline and at Week 20. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Fasting Proinsulin (Week 20).-4.2 pmol/LStandard Error 1.62
Alogliptin 25 mg QDChange From Baseline in Fasting Proinsulin (Week 20).-1.1 pmol/LStandard Error 1.66
PlaceboChange From Baseline in Fasting Proinsulin (Week 20).-2.0 pmol/LStandard Error 2.29
p-value: 0.42795% CI: [-7.8, 3.3]ANCOVA
p-value: 0.74695% CI: [-4.6, 6.5]ANCOVA
Secondary

Change From Baseline in Fasting Proinsulin (Week 26).

The change between the value of fasting proinsulin collected at week 26 or final visit and fasting proinsulin collected at baseline.

Time frame: Baseline and Week 26.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a PROINSULIN measurement at baseline and at Week 26. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Fasting Proinsulin (Week 26).-2.1 pmol/LStandard Error 1.8
Alogliptin 25 mg QDChange From Baseline in Fasting Proinsulin (Week 26).-1.6 pmol/LStandard Error 1.84
PlaceboChange From Baseline in Fasting Proinsulin (Week 26).-3.2 pmol/LStandard Error 2.54
p-value: 0.72795% CI: [-5, 7.2]ANCOVA
p-value: 1.695% CI: [-4.5, 7.8]ANCOVA
Secondary

Change From Baseline in Fasting Proinsulin (Week 4).

The change between the value of fasting proinsulin collected at week 4 and fasting proinsulin collected at baseline.

Time frame: Baseline and Week 4.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a fasting plasma glucose measurement at baseline and at Week 4. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Fasting Proinsulin (Week 4).-1.9 pmol/LStandard Error 1.76
Alogliptin 25 mg QDChange From Baseline in Fasting Proinsulin (Week 4).-5.0 pmol/LStandard Error 1.77
PlaceboChange From Baseline in Fasting Proinsulin (Week 4).-0.5 pmol/LStandard Error 2.47
p-value: 0.63495% CI: [-7.4, 4.5]ANCOVA
p-value: 0.13695% CI: [-10.5, 1.4]ANCOVA
Secondary

Change From Baseline in Fasting Proinsulin (Week 8).

The change between the value of fasting proinsulin collected at week 8 and fasting proinsulin collected at baseline.

Time frame: Baseline and Week 8.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a proinsulin measurement at baseline and at Week 8. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Fasting Proinsulin (Week 8).-2.9 pmol/LStandard Error 1.3
Alogliptin 25 mg QDChange From Baseline in Fasting Proinsulin (Week 8).-5.0 pmol/LStandard Error 1.34
PlaceboChange From Baseline in Fasting Proinsulin (Week 8).-0.4 pmol/LStandard Error 1.85
p-value: 0.27495% CI: [-6.9, 2]ANCOVA
p-value: 0.04695% CI: [-9.1, -0.1]ANCOVA
Secondary

Change From Baseline in Glycosylated Hemoglobin (Week 12).

The change in the value of Glycosylated Hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at week 12 and Glycosylated Hemoglobin collected at baseline.

Time frame: Baseline and Week 12.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had an HbA1c measurement at baseline and at Week 12.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 12).-0.66 percentage of Glycosylated HemoglobinStandard Error 0.047
Alogliptin 25 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 12).-0.66 percentage of Glycosylated HemoglobinStandard Error 0.048
PlaceboChange From Baseline in Glycosylated Hemoglobin (Week 12).-0.16 percentage of Glycosylated HemoglobinStandard Error 0.067
p-value: <0.00195% CI: [-0.66, -0.34]ANCOVA
p-value: <0.00195% CI: [-0.66, -0.34]ANCOVA
Secondary

Change From Baseline in Glycosylated Hemoglobin (Week 16).

The change in the value of Glycosylated Hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at week 16 and Glycosylated Hemoglobin collected at baseline.

Time frame: Baseline and Week 16.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had an HbA1c measurement at baseline and at Week 16.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 16).-0.66 percentage of Glycosylated HemoglobinStandard Error 0.05
Alogliptin 25 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 16).-0.64 percentage of Glycosylated HemoglobinStandard Error 0.051
PlaceboChange From Baseline in Glycosylated Hemoglobin (Week 16).-0.13 percentage of Glycosylated HemoglobinStandard Error 0.072
p-value: <0.00195% CI: [-0.7, -0.36]ANCOVA
p-value: <0.00195% CI: [-0.69, -0.34]ANCOVA
Secondary

Change From Baseline in Glycosylated Hemoglobin (Week 20).

The change in the value of Glycosylated Hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at week 20 and Glycosylated Hemoglobin collected at baseline.

Time frame: Baseline and Week 20.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had an HbA1c measurement at baseline and at Week 20.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 20).-0.63 percentage of Glycosylated HemoglobinStandard Error 0.051
Alogliptin 25 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 20).-0.63 percentage of Glycosylated HemoglobinStandard Error 0.052
PlaceboChange From Baseline in Glycosylated Hemoglobin (Week 20).-0.12 percentage of Glycosylated HemoglobinStandard Error 0.073
p-value: <0.00195% CI: [-0.69, -0.34]ANCOVA
p-value: <0.00195% CI: [-0.69, -0.34]ANCOVA
Secondary

Change From Baseline in Glycosylated Hemoglobin (Week 4).

The change in the value of Glycosylated Hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at week 4 and Glycosylated Hemoglobin collected at baseline.

Time frame: Baseline and Week 4.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had an HbA1c measurement at baseline and at Week 4. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 4).-0.36 percentage of Glycosylated HemoglobinStandard Error 0.031
Alogliptin 25 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 4).-0.40 percentage of Glycosylated HemoglobinStandard Error 0.031
PlaceboChange From Baseline in Glycosylated Hemoglobin (Week 4).-0.10 percentage of Glycosylated HemoglobinStandard Error 0.044
p-value: <0.00195% CI: [-0.37, -0.16]ANCOVA
p-value: <0.00195% CI: [-0.4, -0.19]ANCOVA
Secondary

Change From Baseline in Glycosylated Hemoglobin (Week 8).

The change in the value of Glycosylated Hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at week 8 and Glycosylated Hemoglobin collected at baseline.

Time frame: Baseline and Week 8.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had an HbA1c measurement at baseline and at Week 8.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 8).-0.59 percentage of Glycosylated HemoglobinStandard Error 0.041
Alogliptin 25 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 8).-0.59 percentage of Glycosylated HemoglobinStandard Error 0.042
PlaceboChange From Baseline in Glycosylated Hemoglobin (Week 8).-0.21 percentage of Glycosylated HemoglobinStandard Error 0.058
p-value: <0.00195% CI: [-0.52, -0.24]ANCOVA
p-value: <0.00195% CI: [-0.52, -0.24]ANCOVA
Secondary

Change From Baseline in Insulin (Week 12).

The change between the value of insulin collected at week 12 and insulin collected at baseline.

Time frame: Baseline and Week 12.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a Insulin measurement at baseline and at Week 12. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Insulin (Week 12).1.6 mcIU/mLStandard Error 1.488
Alogliptin 25 mg QDChange From Baseline in Insulin (Week 12).0.46 mcIU/mLStandard Error 1.532
PlaceboChange From Baseline in Insulin (Week 12).1.92 mcIU/mLStandard Error 2.118
p-value: 0.90195% CI: [-5.42, 4.77]ANCOVA
p-value: 0.57895% CI: [-6.59, 3.68]ANCOVA
Secondary

Change From Baseline in Insulin (Week 16).

The change between the value of insulin collected at week 16 and insulin collected at baseline.

Time frame: Baseline and Week 16.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a Insulin measurement at baseline and at Week 16. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Insulin (Week 16).1.27 mcIU/mLStandard Error 0.964
Alogliptin 25 mg QDChange From Baseline in Insulin (Week 16).1.53 mcIU/mLStandard Error 0.993
PlaceboChange From Baseline in Insulin (Week 16).0.64 mcIU/mLStandard Error 1.372
p-value: 0.70895% CI: [-2.67, 3.93]ANCOVA
p-value: 0.60195% CI: [-2.44, 4.21]ANCOVA
Secondary

Change From Baseline in Insulin (Week 20).

The change between the value of insulin collected at week 20 and insulin collected at baseline.

Time frame: Baseline and Week 20.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a Insulin measurement at baseline and at Week 20. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Insulin (Week 20).0.91 mcIU/mLStandard Error 0.76
Alogliptin 25 mg QDChange From Baseline in Insulin (Week 20).0.86 mcIU/mLStandard Error 0.782
PlaceboChange From Baseline in Insulin (Week 20).-0.21 mcIU/mLStandard Error 1.081
p-value: 0.39895% CI: [-1.48, 3.72]ANCOVA
p-value: 0.42595% CI: [-1.56, 3.69]ANCOVA
Secondary

Change From Baseline in Insulin (Week 26).

The change between the value of insulin collected at week 26 and insulin collected at baseline.

Time frame: Baseline and Week 26.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a Insulin measurement at baseline and at Week 26. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Insulin (Week 26).0.63 mcIU/mLStandard Error 0.69
Alogliptin 25 mg QDChange From Baseline in Insulin (Week 26).-0.01 mcIU/mLStandard Error 0.71
PlaceboChange From Baseline in Insulin (Week 26).-2.23 mcIU/mLStandard Error 0.981
p-value: 0.01895% CI: [0.5, 5.23]ANCOVA
p-value: 0.06795% CI: [-0.15, 4.6]ANCOVA
Secondary

Change From Baseline in Insulin (Week 4).

The change between the value of insulin collected at week 4 and insulin collected at baseline.

Time frame: Baseline and Week 4.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had an insulin measurement at baseline and at Week 4. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Insulin (Week 4).1.11 mcIU/mLStandard Error 0.684
Alogliptin 25 mg QDChange From Baseline in Insulin (Week 4).0.52 mcIU/mLStandard Error 0.695
PlaceboChange From Baseline in Insulin (Week 4).-1.07 mcIU/mLStandard Error 0.965
p-value: 0.06695% CI: [-0.15, 4.52]ANCOVA
p-value: 0.1895% CI: [-0.74, 3.93]ANCOVA
Secondary

Change From Baseline in Insulin (Week 8).

The change between the value of insulin collected at week 8 and insulin collected at baseline.

Time frame: Baseline and Week 8.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had a Insulin measurement at baseline and at Week 8. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Insulin (Week 8).2.50 mcIU/mLStandard Error 1.416
Alogliptin 25 mg QDChange From Baseline in Insulin (Week 8).0.18 mcIU/mLStandard Error 1.466
PlaceboChange From Baseline in Insulin (Week 8).2.68 mcIU/mLStandard Error 2.015
p-value: 0.94495% CI: [-5.02, 4.68]ANCOVA
p-value: 0.31695% CI: [-7.4, 2.4]ANCOVA
Secondary

Change From Baseline in Proinsulin/Insulin Ratio (Week 12).

The change between the ratio value of proinsulin and insulin collected at week 12 and the ratio value of proinsulin and insulin collected at baseline.

Time frame: Baseline and Week 12.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had insulin and proinsulin measurements at baseline and at Week 12. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 12).-0.044 ratioStandard Error 0.0083
Alogliptin 25 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 12).-0.042 ratioStandard Error 0.0085
PlaceboChange From Baseline in Proinsulin/Insulin Ratio (Week 12).-0.005 ratioStandard Error 0.0118
p-value: 0.00795% CI: [-0.068, -0.011]ANCOVA
p-value: 0.01195% CI: [-0.066, -0.008]ANCOVA
Secondary

Change From Baseline in Proinsulin/Insulin Ratio (Week 16).

The change between the ratio value of proinsulin and insulin collected at week 16 and the ratio value of proinsulin and insulin collected at baseline.

Time frame: Baseline and Week 16.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had insulin and proinsulin measurements at baseline and at Week 16. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 16).-0.051 ratioStandard Error 0.0082
Alogliptin 25 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 16).-0.043 ratioStandard Error 0.0085
PlaceboChange From Baseline in Proinsulin/Insulin Ratio (Week 16).0.001 ratioStandard Error 0.0117
p-value: <0.00195% CI: [-0.08, -0.024]ANCOVA
p-value: 0.00395% CI: [-0.072, -0.015]ANCOVA
Secondary

Change From Baseline in Proinsulin/Insulin Ratio (Week 20).

The change between the ratio value of proinsulin and insulin collected at week 20 and the ratio value of proinsulin and insulin collected at baseline.

Time frame: Baseline and Week 20.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had insulin and proinsulin measurements at baseline and at Week 20. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 20).-0.53 ratioStandard Error 0.015
Alogliptin 25 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 20).-0.011 ratioStandard Error 0.0155
PlaceboChange From Baseline in Proinsulin/Insulin Ratio (Week 20).-0.007 ratioStandard Error 0.0213
p-value: 0.07895% CI: [-0.097, 0.005]ANCOVA
p-value: 0.8695% CI: [-0.056, 0.047]ANCOVA
Secondary

Change From Baseline in Proinsulin/Insulin Ratio (Week 26).

The change between the ratio value of proinsulin and insulin collected at week 26 or final visit and the ratio value of proinsulin and insulin collected at baseline.

Time frame: Baseline and Week 26.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had insulin and proinsulin measurements at baseline and at Week 26. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 26).-0.049 ratioStandard Error 0.0154
Alogliptin 25 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 26).0.000 ratioStandard Error 0.0159
PlaceboChange From Baseline in Proinsulin/Insulin Ratio (Week 26).0.004 ratioStandard Error 0.0219
p-value: 0.04895% CI: [-0.106, -0.001]ANCOVA
p-value: 0.88995% CI: [-0.057, 0.05]ANCOVA
Secondary

Change From Baseline in Proinsulin/Insulin Ratio (Week 4).

The change between the ratio value of proinsulin and insulin collected at week 4 and the ratio value of proinsulin and insulin collected at baseline.

Time frame: Baseline and Week 4.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had insulin and proinsulin measurements at baseline and at Week 4. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 4).-0.045 ratioStandard Error 0.0082
Alogliptin 25 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 4).-0.056 ratioStandard Error 0.0083
PlaceboChange From Baseline in Proinsulin/Insulin Ratio (Week 4).-0.008 ratioStandard Error 0.0115
p-value: 0.01195% CI: [-0.064, -0.009]ANCOVA
p-value: <0.00195% CI: [-0.075, -0.019]ANCOVA
Secondary

Change From Baseline in Proinsulin/Insulin Ratio (Week 8).

The change between the ratio value of proinsulin and insulin collected at week 8 and the ratio value of proinsulin and insulin collected at baseline.

Time frame: Baseline and Week 8.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had insulin and proinsulin measurements at baseline and at Week 8. Missing data are imputed using last observation carried forward (LOCF.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Alogliptin 12.5 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 8).-0.055 ratioStandard Error 0.0073
Alogliptin 25 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 8).-0.046 ratioStandard Error 0.0075
PlaceboChange From Baseline in Proinsulin/Insulin Ratio (Week 8).-0.009 ratioStandard Error 0.0103
p-value: <0.00195% CI: [-0.07, -0.021]ANCOVA
p-value: 0.00495% CI: [-0.062, -0.012]ANCOVA
Secondary

Number of Participants Requiring Rescue.

The number of participants requiring rescue for failing to achieve pre-specified glycemic targets during the 26 week study.

Time frame: 26 Weeks.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who completed at least 1 study visit after baseline.

ArmMeasureValue (NUMBER)
Alogliptin 12.5 mg QDNumber of Participants Requiring Rescue.19 participants
Alogliptin 25 mg QDNumber of Participants Requiring Rescue.17 participants
PlaceboNumber of Participants Requiring Rescue.25 participants
p-value: 0.00295% CI: [0.143, 0.635]Regression, Logistic
p-value: <0.00195% CI: [0.109, 0.51]Regression, Logistic
Secondary

Number of Participants With Glycosylated Hemoglobin ≤ 6.5%.

The number of participants with a value for the percentage of glycosylated hemoglobin (the percentage of hemoglobin that is bound to glucose) less than or equal to 6.5% during the 26 week study.

Time frame: Baseline and Week 26.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
Alogliptin 12.5 mg QDNumber of Participants With Glycosylated Hemoglobin ≤ 6.5%.42 participants
Alogliptin 25 mg QDNumber of Participants With Glycosylated Hemoglobin ≤ 6.5%.36 participants
PlaceboNumber of Participants With Glycosylated Hemoglobin ≤ 6.5%.4 participants
p-value: <0.00195% CI: [2.117, 17.864]Regression, Logistic
p-value: 0.00295% CI: [1.82, 15.564]Regression, Logistic
Secondary

Number of Participants With Glycosylated Hemoglobin ≤ 7.0%.

The number of participants with a value for the percentage of glycosylated hemoglobin (the percentage of hemoglobin that is bound to glucose) less than or equal to 7.0% during the 26 week study.

Time frame: Baseline and Week 26.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
Alogliptin 12.5 mg QDNumber of Participants With Glycosylated Hemoglobin ≤ 7.0%.110 participants
Alogliptin 25 mg QDNumber of Participants With Glycosylated Hemoglobin ≤ 7.0%.92 participants
PlaceboNumber of Participants With Glycosylated Hemoglobin ≤ 7.0%.19 participants
p-value: <0.00195% CI: [3.271, 11.345]Regression, Logistic
p-value: <0.00195% CI: [2.388, 8.296]Regression, Logistic
Secondary

Number of Participants With Glycosylated Hemoglobin ≤ 7.5%.

The number of participants with a value for the percentage of glycosylated hemoglobin (the percentage of hemoglobin that is bound to glucose) less than or equal to 7.5% during the 26 week study.

Time frame: Baseline and Week 26.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
Alogliptin 12.5 mg QDNumber of Participants With Glycosylated Hemoglobin ≤ 7.5%.153 participants
Alogliptin 25 mg QDNumber of Participants With Glycosylated Hemoglobin ≤ 7.5%.137 participants
PlaceboNumber of Participants With Glycosylated Hemoglobin ≤ 7.5%.47 participants
p-value: <0.00195% CI: [2.327, 7.717]Regression, Logistic
p-value: <0.00195% CI: [1.814, 5.979]Regression, Logistic
Secondary

Number of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 0.5%.

The number of participants with a decrease from baseline in the percentage of glycosylated hemoglobin (the percentage of hemoglobin that is bound to glucose) greater than or equal to 0.5% during the 26 week study.

Time frame: Baseline and Week 26.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
Alogliptin 12.5 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 0.5%.123 participants
Alogliptin 25 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 0.5%.122 participants
PlaceboNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 0.5%.28 participants
p-value: <0.00195% CI: [2.428, 6.934]Regression, Logistic
p-value: <0.00195% CI: [2.545, 7.312]Regression, Logistic
Secondary

Number of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.0%.

The number of participants with a decrease from baseline in the percentage of glycosylated hemoglobin (the percentage of hemoglobin that is bound to glucose) greater than or equal to 1.0% during the 26 week study.

Time frame: Baseline and Week 26.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
Alogliptin 12.5 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.0%.61 participants
Alogliptin 25 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.0%.62 participants
PlaceboNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.0%.9 participants
p-value: <0.00195% CI: [2.554, 12.282]Regression, Logistic
p-value: <0.00195% CI: [2.645, 12.684]Regression, Logistic
Secondary

Number of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.5%.

The number of participants with a decrease from baseline in the percentage of glycosylated hemoglobin (the percentage of hemoglobin that is bound to glucose) greater than or equal to 1.5% during the 26 week study.

Time frame: Baseline and Week 26.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
Alogliptin 12.5 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.5%.20 participants
Alogliptin 25 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.5%.24 participants
PlaceboNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.5%.6 participants
p-value: 0.08595% CI: [0.883, 6.797]Regression, Logistic
p-value: 0.03495% CI: [1.087, 8.046]Regression, Logistic
Secondary

Number of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 2.0%.

The number of participants with a decrease from baseline in the percentage of glycosylated hemoglobin (the percentage of hemoglobin that is bound to glucose) greater than or equal to 2.0% during the 26 week study.

Time frame: Baseline and Week 26.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
Alogliptin 12.5 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 2.0%.7 participants
Alogliptin 25 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 2.0%.5 participants
PlaceboNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 2.0%.4 participants
p-value: 0.63995% CI: [0.34, 5.803]Regression, Logistic
p-value: 0.95695% CI: [0.218, 4.223]Regression, Logistic
Secondary

Number of Participants With Marked Hyperglycemia (Fasting Plasma Glucose ≥ 200 mg Per dL).

The number of participants with a fasting plasma glucose value greater than or equal to 200 mg per dL during the 26 week study.

Time frame: 26 Weeks.

Population: Randomized participants who received at least 1 dose of study drug (Full Analysis Set), and who had at least 1 fasting plasma glucose measurement after baseline.

ArmMeasureValue (NUMBER)
Alogliptin 12.5 mg QDNumber of Participants With Marked Hyperglycemia (Fasting Plasma Glucose ≥ 200 mg Per dL).61 participants
Alogliptin 25 mg QDNumber of Participants With Marked Hyperglycemia (Fasting Plasma Glucose ≥ 200 mg Per dL).65 participants
PlaceboNumber of Participants With Marked Hyperglycemia (Fasting Plasma Glucose ≥ 200 mg Per dL).53 participants
p-value: <0.00195% CI: [0.213, 0.65]Regression, Logistic
p-value: 0.00295% CI: [0.231, 0.708]Regression, Logistic

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