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Study of Alogliptin Combined With Sulfonylurea in Subjects 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 a Sulfonylurea in Subjects With Type 2 Diabetes

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00286468
Enrollment
500
Registered
2006-02-03
Start date
2006-04-30
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 a sulfonylurea 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 a sulfonylurea in subjects who are inadequately controlled on a sulfonylurea 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

DRUGAlogliptin and glyburide

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

DRUGGlyburide

Alogliptin placebo-matching tablets, orally, once daily and glyburide 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 a sulfonylurea alone but experiencing inadequate glycemic control. Should have received the sulfonylurea monotherapy for at least the 3 months prior to Screening; has been on a stable sulfonylurea dose equivalent to at least 10 mg of glyburide (Exception: documented maximum tolerated dose equivalent to less than 10 mg but at least 5 mg glyburide) for at least 8 weeks. * No treatment with antidiabetic agents other than a sulfonylurea within the 3 months prior to Screening. (Exception: if a subject 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/mL. (If this screening criterion is not met, the subject still qualifies if C-peptide is greater than or equal to 1.5 ng/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 to180 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 ≤2.0 mg/dL (≤17 micromol/L) * Thyroid-stimulating hormone level less than or equal to the upper limit of the normal range and the subject is clinically euthyroid. * Neither pregnant nor lactating * Female subjects 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 subject 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 subject 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 subjects 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 subject'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 and Treatments: * Treatment with antidiabetic agents other than study drug or glyburide 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, Bosentan (used for the treatment of pulmonary hypertension), 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. * Subjects must not 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 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 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 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 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 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.
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 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 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 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 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 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 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.
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.
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.

Countries

Argentina, Australia, Brazil, Chile, Dominican Republic, Guatemala, India, Mexico, Netherlands, New Zealand, Peru, Poland, South Africa, United Kingdom, United States

Participant flow

Recruitment details

Participants enrolled at 125 investigative sites in Argentina, Australia, Brazil, Chile, Dominican Republic, Germany, Guatemala, India, Mexico, New Zealand, The Netherlands, Poland, South Africa, Spain, and the United States from 04 April 2006 to 20 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 glyburide monotherapy were enrolled in one of 3, once-daily (QD) treatment groups.

Participants by arm

ArmCount
Placebo
Alogliptin placebo-matching tablets, orally, once daily and glyburide for up to 26 weeks.
99
Alogliptin 12.5 mg QD
Alogliptin 12.5 mg, tablets, orally, once daily and glyburide for up to 26 weeks.
203
Alogliptin 25 mg QD
Alogliptin 25 mg, tablets, orally, once daily and glyburide for up to 26 weeks.
198
Total500

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event264
Overall StudyHyperglycemic Rescue283031
Overall StudyLost to Follow-up112
Overall StudyPhysician Decision321
Overall StudyProtocol Violation031
Overall StudyWithdrawal by Subject3811

Baseline characteristics

CharacteristicPlaceboAlogliptin 12.5 mg QDAlogliptin 25 mg QDTotal
Age, Customized
<65 years
72 participants153 participants145 participants370 participants
Age, Customized
≥75 years
4 participants8 participants6 participants18 participants
Age, Customized
Between 65 and 74 years
23 participants42 participants47 participants112 participants
Sex: Female, Male
Female
48 Participants92 Participants99 Participants239 Participants
Sex: Female, Male
Male
51 Participants111 Participants99 Participants261 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
23 / 9949 / 20364 / 198
serious
Total, serious adverse events
2 / 9911 / 20311 / 198

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 subjects who received at least 1 dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 26.0.01 mg/dLStandard Error 0.084
Alogliptin 12.5 mg QDChange From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 26.-0.38 mg/dLStandard Error 0.058
Alogliptin 25 mg QDChange From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 26.-0.52 mg/dLStandard Error 0.058
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 subjects had 94% 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 subjects meeting per protocol criteria.p-value: <0.00195% CI: [-0.59, -0.19]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 subjects had 94% 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 subjects meeting per-protocol criteria.p-value: <0.00195% CI: [-0.73, -0.33]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Body Weight (Week 12).-0.12 kgStandard Error 0.204
Alogliptin 12.5 mg QDChange From Baseline in Body Weight (Week 12).0.58 kgStandard Error 0.142
Alogliptin 25 mg QDChange From Baseline in Body Weight (Week 12).0.40 kgStandard Error 0.143
p-value: 0.00695% CI: [0.2, 1.18]ANCOVA
p-value: 0.0495% CI: [0.02, 1.01]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Body Weight (Week 20).-0.30 kgStandard Error 0.264
Alogliptin 12.5 mg QDChange From Baseline in Body Weight (Week 20).0.79 kgStandard Error 0.184
Alogliptin 25 mg QDChange From Baseline in Body Weight (Week 20).0.61 kgStandard Error 0.185
p-value: <0.00195% CI: [0.47, 1.73]ANCOVA
p-value: 0.00595% CI: [0.28, 1.55]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Body Weight (Week 26).-0.20 kgStandard Error 0.277
Alogliptin 12.5 mg QDChange From Baseline in Body Weight (Week 26).0.60 kgStandard Error 0.193
Alogliptin 25 mg QDChange From Baseline in Body Weight (Week 26).0.68 kgStandard Error 0.194
p-value: 0.01895% CI: [0.14, 1.46]ANCOVA
p-value: 0.0195% CI: [0.21, 1.54]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Body Weight (Week 8).-0.27 kgStandard Error 0.175
Alogliptin 12.5 mg QDChange From Baseline in Body Weight (Week 8).0.47 kgStandard Error 0.122
Alogliptin 25 mg QDChange From Baseline in Body Weight (Week 8).0.33 kgStandard Error 0.124
p-value: <0.00195% CI: [0.32, 1.16]ANCOVA
p-value: 0.00695% CI: [0.17, 1.02]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in C-peptide (Week 12).-0.020 ng/mLStandard Error 0.1155
Alogliptin 12.5 mg QDChange From Baseline in C-peptide (Week 12).0.162 ng/mLStandard Error 0.0797
Alogliptin 25 mg QDChange From Baseline in C-peptide (Week 12).0.206 ng/mLStandard Error 0.0801
p-value: 0.19695% CI: [-0.094, 0.458]ANCOVA
p-value: 0.1195% CI: [-0.051, 0.502]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in C-peptide (Week 16).-0.007 ng/mLStandard Error 0.1206
Alogliptin 12.5 mg QDChange From Baseline in C-peptide (Week 16).0.222 ng/mLStandard Error 0.0837
Alogliptin 25 mg QDChange From Baseline in C-peptide (Week 16).0.153 ng/mLStandard Error 0.0841
p-value: 0.12195% CI: [-0.06, 0.517]ANCOVA
p-value: 0.2895% CI: [-0.13, 0.448]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in C-peptide (Week 20).-0.016 ng/mLStandard Error 0.1275
Alogliptin 12.5 mg QDChange From Baseline in C-peptide (Week 20).-0.001 ng/mLStandard Error 0.0884
Alogliptin 25 mg QDChange From Baseline in C-peptide (Week 20).0.122 ng/mLStandard Error 0.0889
p-value: 0.92495% CI: [-0.29, 0.32]ANCOVA
p-value: 0.37695% CI: [-0.168, 0.444]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in C-peptide (Week 26).-0.215 ng/mLStandard Error 0.1326
Alogliptin 12.5 mg QDChange From Baseline in C-peptide (Week 26).-0.140 ng/mLStandard Error 0.092
Alogliptin 25 mg QDChange From Baseline in C-peptide (Week 26).-0.153 ng/mLStandard Error 0.0925
p-value: 0.64295% CI: [-0.242, 0.393]ANCOVA
p-value: 0.69895% CI: [-0.255, 0.381]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF). Smaller n at earlier timepoints due to unavailable prior values to carry forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in C-peptide (Week 4).-0.041 ng/mLStandard Error 0.1355
Alogliptin 12.5 mg QDChange From Baseline in C-peptide (Week 4).0.122 ng/mLStandard Error 0.0932
Alogliptin 25 mg QDChange From Baseline in C-peptide (Week 4).0.136 ng/mLStandard Error 0.093
p-value: 0.32495% CI: [-0.161, 0.486]ANCOVA
p-value: 0.28495% CI: [-0.147, 0.5]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF). Smaller n at earlier timepoints due to unavailable prior values to carry forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in C-peptide (Week 8).-0.176 ng/mLStandard Error 0.1138
Alogliptin 12.5 mg QDChange From Baseline in C-peptide (Week 8).0.092 ng/mLStandard Error 0.0786
Alogliptin 25 mg QDChange From Baseline in C-peptide (Week 8).0.173 ng/mLStandard Error 0.0785
p-value: 0.05395% CI: [-0.004, 0.54]ANCOVA
p-value: 0.01295% CI: [0.077, 0.621]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF). Smaller n at earlier timepoints due to unavailable prior values to carry forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 1).0.3 mg/dLStandard Error 3.62
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 1).-11.8 mg/dLStandard Error 2.51
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 1).-19.0 mg/dLStandard Error 2.53
p-value: 0.00695% CI: [-20.8, -3.4]ANCOVA
p-value: <0.00195% CI: [-28, -10.6]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 12).-3.4 mg/dLStandard Error 3.79
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 12).-13.5 mg/dLStandard Error 2.64
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 12).-15.0 mg/dLStandard Error 2.66
p-value: 0.0395% CI: [-19.2, -1]ANCOVA
p-value: 0.01295% CI: [-20.8, -2.5]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 16).-7.1 mg/dLStandard Error 4.03
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 16).-9.0 mg/dLStandard Error 2.81
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 16).-13.0 mg/dLStandard Error 2.83
p-value: 0.70195% CI: [-11.6, 7.8]ANCOVA
p-value: 0.22895% CI: [-15.7, 3.7]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).Smaller n at earlier timepoints due to unavailable prior values to carry forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 2).-1.8 mg/dLStandard Error 3.2
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 2).-16.7 mg/dLStandard Error 2.21
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 2).-21.8 mg/dLStandard Error 2.23
p-value: <0.00195% CI: [-22.5, -7.2]ANCOVA
p-value: <0.00195% CI: [-27.7, -12.4]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 20).-0.4 mg/dLStandard Error 4.41
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 20).-9.3 mg/dLStandard Error 3.08
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 20).-13.6 mg/dLStandard Error 3.1
p-value: 0.09795% CI: [-19.6, 1.6]ANCOVA
p-value: 0.01495% CI: [-23.9, -2.7]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 26).2.2 mg/dLStandard Error 4.77
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 26).-4.7 mg/dLStandard Error 3.33
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 26).-8.4 mg/dLStandard Error 3.36
p-value: 0.24195% CI: [-18.3, 4.6]ANCOVA
p-value: 0.07295% CI: [-22, 0.9]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF). Smaller n at earlier timepoints due to unavailable prior values to carry forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 4).-3.7 mg/dLStandard Error 3.48
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 4).-14.6 mg/dLStandard Error 2.42
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 4).-21.1 mg/dLStandard Error 2.43
p-value: 0.0195% CI: [-19.3, -2.6]ANCOVA
p-value: <0.00195% CI: [-25.8, -9.1]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Fasting Plasma Glucose (Week 8).-3.2 mg/dLStandard Error 3.55
Alogliptin 12.5 mg QDChange From Baseline in Fasting Plasma Glucose (Week 8).-19.9 mg/dLStandard Error 2.46
Alogliptin 25 mg QDChange From Baseline in Fasting Plasma Glucose (Week 8).-18.6 mg/dLStandard Error 2.47
p-value: <0.00195% CI: [-25.2, -8.2]ANCOVA
p-value: <0.00195% CI: [-23.9, -6.9]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Fasting Proinsulin (Week 12).-0.5 pmol/LStandard Error 2.49
Alogliptin 12.5 mg QDChange From Baseline in Fasting Proinsulin (Week 12).-0.7 pmol/LStandard Error 1.73
Alogliptin 25 mg QDChange From Baseline in Fasting Proinsulin (Week 12).-0.7 pmol/LStandard Error 1.73
p-value: 0.95395% CI: [-6.1, 5.8]ANCOVA
p-value: 0.95795% CI: [-6.1, 5.8]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Fasting Proinsulin (Week 16).-1.8 pmol/LStandard Error 2.61
Alogliptin 12.5 mg QDChange From Baseline in Fasting Proinsulin (Week 16).-1.5 pmol/LStandard Error 1.81
Alogliptin 25 mg QDChange From Baseline in Fasting Proinsulin (Week 16).-1.1 pmol/LStandard Error 1.81
p-value: 0.90895% CI: [-5.9, 6.6]ANCOVA
p-value: 0.82695% CI: [-5.6, 7]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Fasting Proinsulin (Week 20).-2.5 pmol/LStandard Error 2.65
Alogliptin 12.5 mg QDChange From Baseline in Fasting Proinsulin (Week 20).-2.1 pmol/LStandard Error 1.84
Alogliptin 25 mg QDChange From Baseline in Fasting Proinsulin (Week 20).0.0 pmol/LStandard Error 1.84
p-value: 0.89495% CI: [-5.9, 6.8]ANCOVA
p-value: 0.43295% CI: [-3.8, 8.9]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Fasting Proinsulin (Week 26).-2.0 pmol/LStandard Error 2.6
Alogliptin 12.5 mg QDChange From Baseline in Fasting Proinsulin (Week 26).-3.9 pmol/LStandard Error 1.81
Alogliptin 25 mg QDChange From Baseline in Fasting Proinsulin (Week 26).-2.1 pmol/LStandard Error 1.81
p-value: 0.54895% CI: [-8.1, 4.3]ANCOVA
p-value: 0.98695% CI: [-6.3, 6.2]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF). Smaller n at earlier timepoints due to unavailable prior values to carry forward

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Fasting Proinsulin (Week 4).-3.0 pmol/LStandard Error 2.68
Alogliptin 12.5 mg QDChange From Baseline in Fasting Proinsulin (Week 4).-2.6 pmol/LStandard Error 1.84
Alogliptin 25 mg QDChange From Baseline in Fasting Proinsulin (Week 4).0.7 pmol/LStandard Error 1.84
p-value: 0.92395% CI: [-6.1, 6.7]Regression, Logistic
p-value: 0.25995% CI: [-2.7, 10.1]Regression, Logistic
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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF). Smaller n at earlier timepoints due to unavailable prior values to carry forward

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Fasting Proinsulin (Week 8).-4.2 pmol/LStandard Error 2.61
Alogliptin 12.5 mg QDChange From Baseline in Fasting Proinsulin (Week 8).-4.5 pmol/LStandard Error 1.81
Alogliptin 25 mg QDChange From Baseline in Fasting Proinsulin (Week 8).-0.9 pmol/LStandard Error 1.81
p-value: 0.91695% CI: [-6.6, 5.9]ANCOVA
p-value: 0.30595% CI: [-3, 9.5]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Glycosylated Hemoglobin (Week 12).-0.17 mg/dLStandard Error 0.068
Alogliptin 12.5 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 12).-0.58 mg/dLStandard Error 0.047
Alogliptin 25 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 12).-0.69 mg/dLStandard Error 0.047
p-value: <0.00195% CI: [-0.57, -0.25]ANCOVA
p-value: <0.00195% CI: [-0.68, -0.36]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Glycosylated Hemoglobin (Week 16).-0.16 mg/dLStandard Error 0.072
Alogliptin 12.5 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 16).-0.53 mg/dLStandard Error 0.05
Alogliptin 25 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 16).-0.66 mg/dLStandard Error 0.051
p-value: <0.00195% CI: [-0.54, -0.19]ANCOVA
p-value: <0.00195% CI: [-0.68, -0.33]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Glycosylated Hemoglobin (Week 20).-0.08 mg/dLStandard Error 0.077
Alogliptin 12.5 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 20).-0.43 mg/dLStandard Error 0.053
Alogliptin 25 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 20).-0.60 mg/dLStandard Error 0.054
p-value: <0.00195% CI: [-0.54, -0.17]ANCOVA
p-value: <0.00195% CI: [-0.71, -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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF). Smaller n at week 4 due to unavailable prior value to carry forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Glycosylated Hemoglobin (Week 4).-0.18 mg/dLStandard Error 0.042
Alogliptin 12.5 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 4).-0.40 mg/dLStandard Error 0.028
Alogliptin 25 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 4).-0.46 mg/dLStandard Error 0.029
p-value: <0.00195% CI: [-0.33, -0.13]ANCOVA
p-value: <0.00195% CI: [-0.38, -0.18]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Glycosylated Hemoglobin (Week 8).-0.18 mg/dLStandard Error 0.057
Alogliptin 12.5 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 8).-0.57 mg/dLStandard Error 0.04
Alogliptin 25 mg QDChange From Baseline in Glycosylated Hemoglobin (Week 8).-0.65 mg/dLStandard Error 0.04
p-value: <0.00195% CI: [-0.53, -0.26]ANCOVA
p-value: <0.00195% CI: [-0.61, -0.33]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Insulin (Week 12).-0.02 mcIU/mLStandard Error 1.464
Alogliptin 12.5 mg QDChange From Baseline in Insulin (Week 12).1.33 mcIU/mLStandard Error 1.009
Alogliptin 25 mg QDChange From Baseline in Insulin (Week 12).1.00 mcIU/mLStandard Error 1.01
p-value: 0.44895% CI: [-2.14, 4.85]ANCOVA
p-value: 0.56895% CI: [-2.48, 4.52]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Insulin (Week 16).-1.21 mcIU/mLStandard Error 1.368
Alogliptin 12.5 mg QDChange From Baseline in Insulin (Week 16).1.74 mcIU/mLStandard Error 0.943
Alogliptin 25 mg QDChange From Baseline in Insulin (Week 16).0.51 mcIU/mLStandard Error 0.944
p-value: 0.07795% CI: [-0.32, 6.22]ANCOVA
p-value: 0.30395% CI: [-1.55, 4.99]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Insulin (Week 20).-0.07 mcIU/mLStandard Error 1.393
Alogliptin 12.5 mg QDChange From Baseline in Insulin (Week 20).1.18 mcIU/mLStandard Error 0.96
Alogliptin 25 mg QDChange From Baseline in Insulin (Week 20).0.93 mcIU/mLStandard Error 0.962
p-value: 0.46195% CI: [-2.08, 4.57]ANCOVA
p-value: 0.55995% CI: [-2.34, 4.32]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Insulin (Week 26).-1.89 mcIU/mLStandard Error 1.081
Alogliptin 12.5 mg QDChange From Baseline in Insulin (Week 26).-0.85 mcIU/mLStandard Error 0.745
Alogliptin 25 mg QDChange From Baseline in Insulin (Week 26).0.14 mcIU/mLStandard Error 0.746
p-value: 0.4395% CI: [-1.54, 3.62]ANCOVA
p-value: 0.12495% CI: [-0.56, 4.61]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF). Smaller n at earlier timepoints due to unavailable prior values to carry forward

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Insulin (Week 4).-0.62 mcIU/mLStandard Error 1.273
Alogliptin 12.5 mg QDChange From Baseline in Insulin (Week 4).0.64 mcIU/mLStandard Error 0.879
Alogliptin 25 mg QDChange From Baseline in Insulin (Week 4).0.89 mcIU/mLStandard Error 0.877
p-value: 0.41595% CI: [-1.78, 4.3]ANCOVA
p-value: 0.33295% CI: [-1.54, 4.55]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF). Smaller n at earlier timepoints due to unavailable prior values to carry forward

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Insulin (Week 8).-0.81 mcIU/mLStandard Error 1.114
Alogliptin 12.5 mg QDChange From Baseline in Insulin (Week 8).-0.62 mcIU/mLStandard Error 0.77
Alogliptin 25 mg QDChange From Baseline in Insulin (Week 8).0.38 mcIU/mLStandard Error 0.771
p-value: 0.8995% CI: [-2.47, 2.85]ANCOVA
p-value: 0.3895% CI: [-1.48, 3.86]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Proinsulin/Insulin Ratio (Week 12).-0.002 ratioStandard Error 0.0163
Alogliptin 12.5 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 12).-0.030 ratioStandard Error 0.0113
Alogliptin 25 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 12).-0.040 ratioStandard Error 0.0113
p-value: 0.15995% CI: [-0.067, 0.011]ANCOVA
p-value: 0.05595% CI: [-0.077, 0.001]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Proinsulin/Insulin Ratio (Week 16).0.003 ratioStandard Error 0.0172
Alogliptin 12.5 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 16).-0.037 ratioStandard Error 0.0119
Alogliptin 25 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 16).-0.041 ratioStandard Error 0.0119
p-value: 0.06295% CI: [-0.08, 0.002]ANCOVA
p-value: 0.04195% CI: [-0.084, -0.002]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Proinsulin/Insulin Ratio (Week 20).-0.005 ratioStandard Error 0.0167
Alogliptin 12.5 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 20).-0.035 ratioStandard Error 0.0116
Alogliptin 25 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 20).-0.036 ratioStandard Error 0.0115
p-value: 0.14895% CI: [-0.069, 0.01]ANCOVA
p-value: 0.13595% CI: [-0.071, 0.009]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Proinsulin/Insulin Ratio (Week 26).-0.008 ratioStandard Error 0.0161
Alogliptin 12.5 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 26).-0.034 ratioStandard Error 0.0111
Alogliptin 25 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 26).-0.034 ratioStandard Error 0.0111
p-value: 0.17795% CI: [-0.065, 0.012]ANCOVA
p-value: 0.17795% CI: [-0.065, 0.012]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF). Smaller n at earlier timepoints due to unavailable prior values to carry forward

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Proinsulin/Insulin Ratio (Week 4).-0.008 ratioStandard Error 0.018
Alogliptin 12.5 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 4).-0.064 ratioStandard Error 0.0125
Alogliptin 25 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 4).-0.043 ratioStandard Error 0.0124
p-value: 0.01195% CI: [-0.099, -0.013]ANCOVA
p-value: 0.11695% CI: [-0.078, 0.009]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 one dose of study drug (Full Analysis Set), and who had measurements at baseline and at the visit. Missing data are imputed using last observation carried forward (LOCF). Smaller n at earlier timepoints due to unavailable prior values to carry forward

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Proinsulin/Insulin Ratio (Week 8).-0.009 ratioStandard Error 0.0158
Alogliptin 12.5 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 8).-0.052 ratioStandard Error 0.011
Alogliptin 25 mg QDChange From Baseline in Proinsulin/Insulin Ratio (Week 8).-0.045 ratioStandard Error 0.0109
p-value: 0.02495% CI: [-0.081, -0.006]ANCOVA
p-value: 0.05995% CI: [-0.074, 0.001]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 one dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
PlaceboNumber of Participants Requiring Rescue.28 participants
Alogliptin 12.5 mg QDNumber of Participants Requiring Rescue.30 participants
Alogliptin 25 mg QDNumber of Participants Requiring Rescue.31 participants
p-value: 0.00395% CI: [0.194, 0.72]Regression, Logistic
p-value: 0.00395% CI: [0.193, 0.718]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 one dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
PlaceboNumber of Participants With Glycosylated Hemoglobin ≤ 6.5%.7 participants
Alogliptin 12.5 mg QDNumber of Participants With Glycosylated Hemoglobin ≤ 6.5%.19 participants
Alogliptin 25 mg QDNumber of Participants With Glycosylated Hemoglobin ≤ 6.5%.28 participants
p-value: 0.59695% CI: [0.503, 3.306]Regression, Logistic
p-value: 0.14895% CI: [0.787, 4.885]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 one dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
PlaceboNumber of Participants With Glycosylated Hemoglobin ≤ 7.0%.18 participants
Alogliptin 12.5 mg QDNumber of Participants With Glycosylated Hemoglobin ≤ 7.0%.60 participants
Alogliptin 25 mg QDNumber of Participants With Glycosylated Hemoglobin ≤ 7.0%.69 participants
p-value: 0.04695% CI: [1.011, 3.666]Regression, Logistic
p-value: 0.00595% CI: [1.313, 4.78]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 one dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
PlaceboNumber of Participants With Glycosylated Hemoglobin ≤ 7.5%.33 participants
Alogliptin 12.5 mg QDNumber of Participants With Glycosylated Hemoglobin ≤ 7.5%.94 participants
Alogliptin 25 mg QDNumber of Participants With Glycosylated Hemoglobin ≤ 7.5%.112 participants
p-value: 0.02595% CI: [1.086, 3.519]Regression, Logistic
p-value: <0.00195% CI: [2.012, 6.831]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 one dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
PlaceboNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 0.5%.26 participants
Alogliptin 12.5 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 0.5%.96 participants
Alogliptin 25 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 0.5%.100 participants
p-value: <0.00195% CI: [1.72, 5.213]Regression, Logistic
p-value: <0.00195% CI: [1.95, 5.933]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 one dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
PlaceboNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.0%.13 participants
Alogliptin 12.5 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.0%.38 participants
Alogliptin 25 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.0%.59 participants
p-value: 0.11595% CI: [0.87, 3.627]Regression, Logistic
p-value: <0.00195% CI: [1.703, 6.851]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 one dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
PlaceboNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.5%.7 participants
Alogliptin 12.5 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.5%.13 participants
Alogliptin 25 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 1.5%.24 participants
p-value: 0.98695% CI: [0.365, 2.689]Regression, Logistic
p-value: 0.13195% CI: [0.808, 5.203]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 one dose of study drug (Full Analysis Set).

ArmMeasureValue (NUMBER)
PlaceboNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 2.0%.4 participants
Alogliptin 12.5 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 2.0%.5 participants
Alogliptin 25 mg QDNumber of Participants With Glycosylated Hemoglobin Decrease From Baseline ≥ 2.0%.12 participants
p-value: 0.626Mantel Haenszel
p-value: 0.178Mantel Haenszel
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 one dose of study drug (Full Analysis Set) and have at least 1 post-baseline measurement for fasting plasma glucose.

ArmMeasureValue (NUMBER)
PlaceboNumber of Participants With Marked Hyperglycemia (Fasting Plasma Glucose ≥ 200 mg Per dL).53 participants
Alogliptin 12.5 mg QDNumber of Participants With Marked Hyperglycemia (Fasting Plasma Glucose ≥ 200 mg Per dL).94 participants
Alogliptin 25 mg QDNumber of Participants With Marked Hyperglycemia (Fasting Plasma Glucose ≥ 200 mg Per dL).79 participants
p-value: 0.33895% CI: [0.46, 1.306]Regression, Logistic
p-value: 0.01695% CI: [0.306, 0.887]Regression, Logistic

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