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Phase 3 Alogliptin Pediatric Study

A Multicenter, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of Alogliptin Compared With Placebo in Pediatric Subjects With Type 2 Diabetes Mellitus

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02856113
Enrollment
152
Registered
2016-08-04
Start date
2016-10-14
Completion date
2022-02-14
Last updated
2022-10-19

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

Conditions

Diabetes Mellitus, Type 2

Keywords

Drug Therapy

Brief summary

The primary purpose of this study is to evaluate the efficacy of alogliptin 25 milligram (mg) once daily compared to placebo when administered as monotherapy, or when added onto a background of metformin alone, insulin alone, or a combination of metformin and insulin, as measured by the glycosylated hemoglobin (HbA1c) change from Baseline at Week 26 in pediatric participants with type 2 diabetes mellitus (T2DM).

Detailed description

The drug being tested in this study is called alogliptin. Alogliptin is being tested to treat children 10 to 17 years of age who have T2DM and are experiencing inadequate glycemic control. This study will look at HbA1c fluctuations in children who take alogliptin in addition to their background antidiabetic therapy. The study will enroll approximately 150 participants. Participants will be randomly assigned (by chance, like flipping a coin) to one of the two treatment groups-which will remain undisclosed to the participant and study doctor during the study (unless there is an urgent medical need): * Alogliptin 25 mg * Placebo (dummy inactive pill) - this is a tablet that looks like the tablet containing alogliptin 25 mg but has no active ingredient (that is, has no alogliptin). All participants will be asked to take one tablet at the same time each day throughout the study in addition to their current background antidiabetic therapy (metformin and/or insulin) if applicable. This multi-center trial will be conducted worldwide. The overall time to participate in this study is approximately 56 weeks. Participants will make multiple visits to the clinic, and will be contacted by telephone 2 weeks after the last dose of study drug for a follow-up assessment.

Interventions

Alogliptin benzoate tablets.

DRUGPlacebo

Alogliptin placebo-matching tablets.

Sponsors

Takeda Development Center Americas, Inc.
CollaboratorINDUSTRY
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
10 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

1. Has a confirmed diagnosis of T2DM using American Diabetes Association (ADA) and World Health Organization (WHO) criteria (laboratory determinations of fasting plasma glucose \[FPG\] greater than or equal to \[\>=\] 126 mg/dL, random glucose \>=200 mg/dL \[\>=11.10 mmol/L\], HbA1c \>=6.5 percent (%), or 2-hour oral glucose tolerance test \[OGTT\] glucose \>=200 mg/dL), documented in the participants' medical record. 2. The participant and/or his/her legal representative (that is, parents or legal guardians) are able and willing to monitor their own blood glucose concentrations with a home glucose monitor and complete participant diaries.

Exclusion criteria

1. Has a history of hypersensitivity or allergy to alogliptin, other dipeptidyl peptidase-4 (DPP-4) inhibitors, metformin, insulin or related compounds. 2. Has a confirmed diagnosis of type 1 diabetes mellitus or maturity-onset diabetes of the young (MODY). 3. Has a hemoglobin level \<11.0 gram per deciliter (g/dL) (\<110 gram per liter \[g/L\]) for males and \<10.0 g/dL (\<100 g/L) for females. 4. Has a history of any hemoglobinopathy that may affect determination of HbA1c levels. 5. Has a history of bariatric surgery. 6. Has a history of proliferative diabetic retinopathy within the 6 months prior to Screening. 7. Has had more than 1 episode of diabetic ketoacidosis (DKA) at any time after diagnosis of T2DM. 8. Has a history of more than 1 episode of pancreatitis. 9. Has serum creatinine \>=1.5 mg/dL for male participants or \>=1.4 mg/dL for female participants, or creatinine clearance \<60 milliliter per minute (mL/min) based on calculation by central lab using the Schwartz formula for estimated glomerular filtration rate (eGFR) at screening Visit. 10. Has a documented history of infection with human immunodeficiency virus or chronic active viral hepatitis. 11. The participant and/or his/her legal representative (that is, parents or legal guardians) is unable to understand verbal or written English, or any other language for which a certified translation of the approved informed consent/assent is available. Additional Criteria That Must be Met Prior to Randomization: For participants who have had the diagnosis of T2DM for less than 1 year and/or who are taking insulin at Screening, additional criteria will need to be met prior to randomization: 1. Must have an HbA1c level of \>=6.5% to \<11.0% if the participant is treatment naïve or on metformin alone or \>=7.0% to \<11.0% if the participant is on insulin alone or in combination with metformin. 2. The participant must not have received any investigational compound within 30 days or 5 half-lives, whichever is longer, prior to randomization. 3. Must not have received an antidiabetic agent other than metformin or insulin within the 12 weeks prior to randomization. 4. Must not have received oral or parenteral steroids for more than 3 weeks (cumulatively) within the 6 months prior to randomization or have received a course of oral or parenteral steroids within the 2 months prior to randomization. 5. Has a systolic blood pressure \<160 millimeter of mercury (mmHg) and a diastolic pressure \<100 mm Hg. (Antihypertensive medications will be allowed during the study). 6. Has an alanine aminotransferase (ALT) level \<3\*upper limit of normal (ULN) or an ALT level \<5 \*ULN with a confirmed diagnosis of nonalcoholic fatty liver disease (NAFLD).7. Does not plan to leave the geographic area within 1 calendar year following randomization. For participants who have had the diagnosis of T2DM for less than 1 year and/or who are taking insulin prior to randomization, the following criteria must also be met: 8\. Must have a fasting C-peptide concentration\>=0.6 nanogram per milliliter (ng/mL) (\>=0.20 nanomole per liter \[nmol/L\]) (drawn at least 1 week after treatment for ketosis or acidosis, if applicable). 9\. No presence of autoantibodies as documented by glutamic acid decarboxylase \[GAD\] 65 and islet antigen \[IA\]-2 antibodies below the upper limit of the normal reference ranges at randomization. 10\. Have a body mass index (BMI) greater than (\>) 85th percentile, documented at randomization.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 26Baseline and Week 26Change in the value of HbA1c (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) was collected at Week 26 relative to Baseline. Mixed model for repeated measures (MMRM) was used for the analysis.

Secondary

MeasureTime frameDescription
Percentage of Participants With Clinically Significant Physical Examination FindingsFrom Day 1 to end of treatment period (up to 52 weeks)Physical examination included examination of the following body systems: (1) respiratory system; (2) cardiovascular system; (3) nervous system (4) dermatologic system; and (5) gastrointestinal system. A summarized data for the above body systems was reported for participants with clinically significant findings.
Percentage of Participants With Abnormal Vital Signs ValuesFrom Day 1 to end of treatment period (up to 52 weeks)Vital signs included body temperature (oral or tympanic measurement), respiratory rate, blood pressure \[systolic blood pressure (SBP) and diastolic blood pressure (DBP)\] resting more than 5 minutes, and pulse (beats per minute). Data for participants with abnormal vital signs was reported. The percentage of participants are calculated based on the participants with non-missing data at that time-point.
Percentage of Participants With Abnormal 12-lead Electrocardiogram (ECG) FindingsWeek 26 and 52
Percentage of Participants With Treatment-emergent Adverse Events (TEAE)From the study start up to end of the study (up to 54 weeks)An AE was defined as any untoward medical occurrence in a clinical investigation participant administered a drug; it does not necessarily have to have a causal relationship with this treatment.
Percentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsFrom Day 1 to end of treatment period (up to 52 weeks)The percentage of participants are calculated based on the participants with non-missing data at that time-point.
Change From Baseline in HbA1c at Weeks 12, 18, 39 and 52Baseline and Weeks 12, 18, 39 and 52Change in the value of HbA1c (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) was collected at Weeks 12, 18, 39 and 52 relative to Baseline. MMRM was used for the analysis.
Percentage of Participants With Abnormal Safety Laboratory FindingsFrom Day 1 to end of treatment period (up to 52 weeks)The percentage of participants with any abnormal standard safety laboratory values (hematology, serum chemistry, and urinalysis) were collected throughout study. Abnormal values for hematology included hematocrit (percentage of hematocrit \[%\]), hemoglobin (grams per liter \[g/L\]), erythrocyte mean corpuscular volume (MCV)(femtoliter \[fL\]), erythrocytes (10\^12/L), and leukocytes (10\^9/L). Abnormal values for serum chemistry included for alanine aminotransferase (units per liter \[U/L\]), aspartate aminotransferase (U/L), cholesterol (millimoles per liter \[mmol/L\]), gamma glutamyl transferase (U/L), glucose (mmol/L): \< 2.8 mmol/L, potassium (mmol/L), sodium (mmol/L), and triglycerides (mmol/L). ULN is upper limit of normal and LLN is lower limit of normal.
Change From Baseline in Biomarkers of Bone Turnover at Weeks 26 and 52Baseline, Weeks 26 and 52Biomarkers of bone turnover are bone-specific alkaline phosphatase to assess changes in bone formation and C-terminal telopeptide (CTX) to assess changes in bone resorption.
Change From Baseline in CD26 (CD4+T Cells) Surface Antigen Levels at Weeks 26 and 52Baseline, Weeks 26 and 52
Change From Baseline in CD26 (CD8+T Cells) Surface Antigen Levels at Weeks 26 and 52Baseline, Weeks 26 and 52
Percentage of Participants With HypoglycemiaFrom Day 1 to end of treatment period (up to 52 weeks)Mild to moderate hypoglycemia (abnormal low blood sugar) was defined as blood glucose less than (\<) 60 milligram per deciliter (mg/dL) (3.33 millimole per liter \[mmol/L\]) in the presence of symptoms, or blood glucose \<50 mg/dL (2.78 mmol/L) with or without symptoms. Severe hypoglycemia was defined as any episode requiring the assistance of another person to actively administer carbohydrate, glucagon, or other resuscitative actions, associated with a documented blood glucose \<60 mg/dL (3.33 mmol/L) (unless the clinical situation makes obtaining a blood glucose difficult \[example, it involves coma or seizure\]).

Countries

Brazil, Israel, Italy, Mexico, Poland, Russia, United States

Participant flow

Recruitment details

A total of 152 participants took part in the study at 67 investigative sites in Mexico, United States, Brazil, Israel, Italy and Russia from 14 October 2016 to 14 February 2022.

Pre-assignment details

Participants with type 2 diabetes mellitus were enrolled to receive placebo or alogliptin 25 mg in a 1:1 ratio in this study.

Participants by arm

ArmCount
Placebo
Alogliptin matching-placebo tablets, orally, QD for 52 weeks and background antidiabetic therapy (metformin and/or insulin), if applicable, maintained at the same dose throughout the first 26 weeks of the treatment period.
76
Alogliptin 25 mg
Alogliptin 25 mg tablets, orally, QD for 52 weeks and background antidiabetic therapy (metformin and/or insulin), if applicable, maintained at the same dose throughout the first 26 weeks of the treatment period.
75
Total151

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDid not Complete Study but Contacted at Week 5203
Overall StudyLost to Follow-up35
Overall StudyPregnancy01
Overall StudyPretreatment Event/Adverse Event10
Overall StudyPrincipal Investigator Discretion21
Overall StudyRandomized but not Treated10
Overall StudySignificant Protocol Deviation10
Overall StudyVoluntary Withdrawal35

Baseline characteristics

CharacteristicAlogliptin 25 mgTotalPlacebo
Age, Continuous14.2 years
STANDARD_DEVIATION 1.92
14.2 years
STANDARD_DEVIATION 2.06
14.3 years
STANDARD_DEVIATION 2.21
Baseline of Glycosylated Hemoglobin (HbA1c)8.16 percentage of HbA1c8.13 percentage of HbA1c8.11 percentage of HbA1c
Body Mass Index (BMI)33.669 kg/m^2
STANDARD_DEVIATION 8.6592
33.650 kg/m^2
STANDARD_DEVIATION 8.2381
33.632 kg/m^2
STANDARD_DEVIATION 7.8581
Ethnicity (NIH/OMB)
Hispanic or Latino
9 Participants15 Participants6 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
26 Participants57 Participants31 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
40 Participants79 Participants39 Participants
Height163.1 centimetres (cm)
STANDARD_DEVIATION 8.79
163.9 centimetres (cm)
STANDARD_DEVIATION 9.18
164.7 centimetres (cm)
STANDARD_DEVIATION 9.54
Race (NIH/OMB)
American Indian or Alaska Native
11 Participants25 Participants14 Participants
Race (NIH/OMB)
Asian
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Black or African American
16 Participants32 Participants16 Participants
Race (NIH/OMB)
More than one race
4 Participants5 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
44 Participants88 Participants44 Participants
Sex: Female, Male
Female
53 Participants104 Participants51 Participants
Sex: Female, Male
Male
22 Participants47 Participants25 Participants
Weight90.72 kilograms (kg)
STANDARD_DEVIATION 28.815
91.48 kilograms (kg)
STANDARD_DEVIATION 27.749
92.23 kilograms (kg)
STANDARD_DEVIATION 26.826

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 760 / 75
other
Total, other adverse events
39 / 7631 / 75
serious
Total, serious adverse events
3 / 762 / 75

Outcome results

Primary

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

Change in the value of HbA1c (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) was collected at Week 26 relative to Baseline. Mixed model for repeated measures (MMRM) was used for the analysis.

Time frame: Baseline and Week 26

Population: FAS included all randomized participants in the safety set. Overall number of participants analyzed are the number of participants available for analysis.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 26-0.011 percentage of HbA1cStandard Deviation 0.2809
Alogliptin 25 mgChange From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 260.091 percentage of HbA1cStandard Deviation 0.2879
p-value: =0.78295% CI: [-0.627, 0.831]MMRM
Secondary

Change From Baseline in Biomarkers of Bone Turnover at Weeks 26 and 52

Biomarkers of bone turnover are bone-specific alkaline phosphatase to assess changes in bone formation and C-terminal telopeptide (CTX) to assess changes in bone resorption.

Time frame: Baseline, Weeks 26 and 52

Population: Safety Set included all participants who took at least 1 dose of study medication. Number analyzed is the number of participants available for analysis at the specific time point. Overall number of participants analyzed are the number of participants available for analysis.

ArmMeasureGroupValue (MEAN)Dispersion
PlaceboChange From Baseline in Biomarkers of Bone Turnover at Weeks 26 and 52Baseline62.09 units per liter (U/L)Standard Deviation 37.084
PlaceboChange From Baseline in Biomarkers of Bone Turnover at Weeks 26 and 52Change From Baseline at Week 26-6.20 units per liter (U/L)Standard Deviation 18.021
PlaceboChange From Baseline in Biomarkers of Bone Turnover at Weeks 26 and 52Change From Baseline at Week 52-14.36 units per liter (U/L)Standard Deviation 18
Alogliptin 25 mgChange From Baseline in Biomarkers of Bone Turnover at Weeks 26 and 52Baseline62.62 units per liter (U/L)Standard Deviation 43.18
Alogliptin 25 mgChange From Baseline in Biomarkers of Bone Turnover at Weeks 26 and 52Change From Baseline at Week 26-7.47 units per liter (U/L)Standard Deviation 20.139
Alogliptin 25 mgChange From Baseline in Biomarkers of Bone Turnover at Weeks 26 and 52Change From Baseline at Week 52-15.43 units per liter (U/L)Standard Deviation 22.497
Secondary

Change From Baseline in CD26 (CD4+T Cells) Surface Antigen Levels at Weeks 26 and 52

Time frame: Baseline, Weeks 26 and 52

Population: Safety Set included all participants who took at least 1 dose of study medication. Number analyzed is the number of participants available for analysis at the specific time point. Overall number of participants analyzed are the number of participants available for analysis.

ArmMeasureGroupValue (MEAN)Dispersion
PlaceboChange From Baseline in CD26 (CD4+T Cells) Surface Antigen Levels at Weeks 26 and 52Change From Baseline at Week 521.0 percentage of CD4+ T cellsStandard Deviation 5.39
PlaceboChange From Baseline in CD26 (CD4+T Cells) Surface Antigen Levels at Weeks 26 and 52Baseline78.2 percentage of CD4+ T cellsStandard Deviation 8.6
PlaceboChange From Baseline in CD26 (CD4+T Cells) Surface Antigen Levels at Weeks 26 and 52Change From Baseline at Week 261.2 percentage of CD4+ T cellsStandard Deviation 6
Alogliptin 25 mgChange From Baseline in CD26 (CD4+T Cells) Surface Antigen Levels at Weeks 26 and 52Baseline77.7 percentage of CD4+ T cellsStandard Deviation 7.23
Alogliptin 25 mgChange From Baseline in CD26 (CD4+T Cells) Surface Antigen Levels at Weeks 26 and 52Change From Baseline at Week 261.6 percentage of CD4+ T cellsStandard Deviation 7.2
Alogliptin 25 mgChange From Baseline in CD26 (CD4+T Cells) Surface Antigen Levels at Weeks 26 and 52Change From Baseline at Week 520.8 percentage of CD4+ T cellsStandard Deviation 4.89
Secondary

Change From Baseline in CD26 (CD8+T Cells) Surface Antigen Levels at Weeks 26 and 52

Time frame: Baseline, Weeks 26 and 52

Population: Safety Set included all participants who took at least 1 dose of study medication. Number analyzed is the number of participants available for analysis at the specific time point. Overall number of participants analyzed are the number of participants available for analysis.

ArmMeasureGroupValue (MEAN)Dispersion
PlaceboChange From Baseline in CD26 (CD8+T Cells) Surface Antigen Levels at Weeks 26 and 52Baseline59.7 percentage of CD8+ T cellsStandard Deviation 13.51
PlaceboChange From Baseline in CD26 (CD8+T Cells) Surface Antigen Levels at Weeks 26 and 52Change From Baseline at Week 26-0.2 percentage of CD8+ T cellsStandard Deviation 9.15
PlaceboChange From Baseline in CD26 (CD8+T Cells) Surface Antigen Levels at Weeks 26 and 52Change From Baseline at Week 521.0 percentage of CD8+ T cellsStandard Deviation 7.63
Alogliptin 25 mgChange From Baseline in CD26 (CD8+T Cells) Surface Antigen Levels at Weeks 26 and 52Baseline59.6 percentage of CD8+ T cellsStandard Deviation 15.3
Alogliptin 25 mgChange From Baseline in CD26 (CD8+T Cells) Surface Antigen Levels at Weeks 26 and 52Change From Baseline at Week 261.7 percentage of CD8+ T cellsStandard Deviation 8.76
Alogliptin 25 mgChange From Baseline in CD26 (CD8+T Cells) Surface Antigen Levels at Weeks 26 and 52Change From Baseline at Week 52-0.3 percentage of CD8+ T cellsStandard Deviation 10.51
Secondary

Change From Baseline in HbA1c at Weeks 12, 18, 39 and 52

Change in the value of HbA1c (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) was collected at Weeks 12, 18, 39 and 52 relative to Baseline. MMRM was used for the analysis.

Time frame: Baseline and Weeks 12, 18, 39 and 52

Population: FAS included all randomized participants in the safety set. Overall number of participants analyzed are the number of participants available for analysis.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline in HbA1c at Weeks 12, 18, 39 and 52Change From Baseline at Week 12-0.319 percentage of HbA1cStandard Deviation 0.2173
PlaceboChange From Baseline in HbA1c at Weeks 12, 18, 39 and 52Change From Baseline at Week 18-0.206 percentage of HbA1cStandard Deviation 0.2458
PlaceboChange From Baseline in HbA1c at Weeks 12, 18, 39 and 52Change From Baseline at Week 390.502 percentage of HbA1cStandard Deviation 0.2802
PlaceboChange From Baseline in HbA1c at Weeks 12, 18, 39 and 52Change From Baseline at Week 520.764 percentage of HbA1cStandard Deviation 0.3118
Alogliptin 25 mgChange From Baseline in HbA1c at Weeks 12, 18, 39 and 52Change From Baseline at Week 520.281 percentage of HbA1cStandard Deviation 0.3199
Alogliptin 25 mgChange From Baseline in HbA1c at Weeks 12, 18, 39 and 52Change From Baseline at Week 12-0.365 percentage of HbA1cStandard Deviation 0.2223
Alogliptin 25 mgChange From Baseline in HbA1c at Weeks 12, 18, 39 and 52Change From Baseline at Week 390.091 percentage of HbA1cStandard Deviation 0.2866
Alogliptin 25 mgChange From Baseline in HbA1c at Weeks 12, 18, 39 and 52Change From Baseline at Week 18-0.202 percentage of HbA1cStandard Deviation 0.2529
Comparison: Change From Baseline at Week 12p-value: =0.86395% CI: [-0.567, 0.476]MMRM
Comparison: Change From Baseline at Week 18p-value: =0.9995% CI: [-0.614, 0.622]MMRM
Comparison: Change From Baseline at Week 39p-value: =0.26495% CI: [-1.139, 0.316]MMRM
Comparison: Change From Baseline at Week 52p-value: =0.2595% CI: [-1.314, 0.348]MMRM
Secondary

Percentage of Participants With Abnormal 12-lead Electrocardiogram (ECG) Findings

Time frame: Week 26 and 52

Population: Safety Set included all participants who took at least 1 dose of study medication.

ArmMeasureGroupValue (NUMBER)
PlaceboPercentage of Participants With Abnormal 12-lead Electrocardiogram (ECG) FindingsWeek 26: Abnormal, Not Clinically Significant7 participants
PlaceboPercentage of Participants With Abnormal 12-lead Electrocardiogram (ECG) FindingsWeek 26: Abnormal, Clinically Significant2 participants
PlaceboPercentage of Participants With Abnormal 12-lead Electrocardiogram (ECG) FindingsWeek 52: Abnormal, Not Clinically Significant7 participants
PlaceboPercentage of Participants With Abnormal 12-lead Electrocardiogram (ECG) FindingsWeek 52: Abnormal, Clinically Significant1 participants
Alogliptin 25 mgPercentage of Participants With Abnormal 12-lead Electrocardiogram (ECG) FindingsWeek 52: Abnormal, Clinically Significant0 participants
Alogliptin 25 mgPercentage of Participants With Abnormal 12-lead Electrocardiogram (ECG) FindingsWeek 26: Abnormal, Not Clinically Significant6 participants
Alogliptin 25 mgPercentage of Participants With Abnormal 12-lead Electrocardiogram (ECG) FindingsWeek 52: Abnormal, Not Clinically Significant6 participants
Alogliptin 25 mgPercentage of Participants With Abnormal 12-lead Electrocardiogram (ECG) FindingsWeek 26: Abnormal, Clinically Significant0 participants
Secondary

Percentage of Participants With Abnormal Safety Laboratory Findings

The percentage of participants with any abnormal standard safety laboratory values (hematology, serum chemistry, and urinalysis) were collected throughout study. Abnormal values for hematology included hematocrit (percentage of hematocrit \[%\]), hemoglobin (grams per liter \[g/L\]), erythrocyte mean corpuscular volume (MCV)(femtoliter \[fL\]), erythrocytes (10\^12/L), and leukocytes (10\^9/L). Abnormal values for serum chemistry included for alanine aminotransferase (units per liter \[U/L\]), aspartate aminotransferase (U/L), cholesterol (millimoles per liter \[mmol/L\]), gamma glutamyl transferase (U/L), glucose (mmol/L): \< 2.8 mmol/L, potassium (mmol/L), sodium (mmol/L), and triglycerides (mmol/L). ULN is upper limit of normal and LLN is lower limit of normal.

Time frame: From Day 1 to end of treatment period (up to 52 weeks)

Population: Safety Set included all participants who took at least 1 dose of study medication. Number analyzed is the number of participants available for analysis at the specific time point. Overall number of participants analyzed are the number of participants available for analysis.

ArmMeasureGroupValue (NUMBER)
PlaceboPercentage of Participants With Abnormal Safety Laboratory FindingsAlanine Aminotransferase (U/L): >= 3 x ULN10.7 percentage of participants
PlaceboPercentage of Participants With Abnormal Safety Laboratory FindingsAspartate Aminotransferase (U/L): >= 3 x ULN2.7 percentage of participants
PlaceboPercentage of Participants With Abnormal Safety Laboratory FindingsCholesterol (mmol/L): >7.72 mmol/L1.3 percentage of participants
PlaceboPercentage of Participants With Abnormal Safety Laboratory FindingsGamma Glutamyl Transferase (U/L): >= 3 x ULN2.7 percentage of participants
PlaceboPercentage of Participants With Abnormal Safety Laboratory FindingsGlucose (mmol/L): < 2.8 mmol/L13.3 percentage of participants
PlaceboPercentage of Participants With Abnormal Safety Laboratory FindingsGlucose (mmol/L): >19.4 mmol/L10.7 percentage of participants
PlaceboPercentage of Participants With Abnormal Safety Laboratory FindingsSodium (mmol/L): <130 mmol/L1.3 percentage of participants
PlaceboPercentage of Participants With Abnormal Safety Laboratory FindingsTriglycerides (mmol/L): >2.5x ULN6.7 percentage of participants
PlaceboPercentage of Participants With Abnormal Safety Laboratory FindingsHematocrit (%): >1.2 x ULN9.5 percentage of participants
PlaceboPercentage of Participants With Abnormal Safety Laboratory FindingsHemoglobin (g/L): >1.2 x ULN4.1 percentage of participants
PlaceboPercentage of Participants With Abnormal Safety Laboratory FindingsErythrocyte Mean Corpuscular Volume (fL): <70 fL2.7 percentage of participants
PlaceboPercentage of Participants With Abnormal Safety Laboratory FindingsErythrocytes (10^12/L): >1.2 x ULN1.4 percentage of participants
PlaceboPercentage of Participants With Abnormal Safety Laboratory FindingsLeukocytes (10^9/L): >1.5 x ULN2.7 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsErythrocytes (10^12/L): >1.2 x ULN1.4 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsErythrocyte Mean Corpuscular Volume (fL): <70 fL2.8 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsTriglycerides (mmol/L): >2.5x ULN1.4 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsAlanine Aminotransferase (U/L): >= 3 x ULN5.6 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsErythrocyte Mean Corpuscular Volume (fL): >100 fL2.8 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsHematocrit (%): >1.2 x ULN8.3 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsCholesterol (mmol/L): >7.72 mmol/L1.4 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsHemoglobin (g/L): < 0.8 x LLN1.4 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsGamma Glutamyl Transferase (U/L): >= 3 x ULN6.9 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsLeukocytes (10^9/L): >1.5 x ULN2.8 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsGlucose (mmol/L): < 2.8 mmol/L20.5 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsHemoglobin (g/L): >1.2 x ULN2.8 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsGlucose (mmol/L): >19.4 mmol/L13.7 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsPotassium (mmol/L): <3.0 mmol/L1.4 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Safety Laboratory FindingsPhosphate (mmol/L): >2.00 mmol/L1.4 percentage of participants
Secondary

Percentage of Participants With Abnormal Vital Signs Values

Vital signs included body temperature (oral or tympanic measurement), respiratory rate, blood pressure \[systolic blood pressure (SBP) and diastolic blood pressure (DBP)\] resting more than 5 minutes, and pulse (beats per minute). Data for participants with abnormal vital signs was reported. The percentage of participants are calculated based on the participants with non-missing data at that time-point.

Time frame: From Day 1 to end of treatment period (up to 52 weeks)

Population: Safety Set included all participants who took at least 1 dose of study medication. Number analyzed are the number of participants with data available for analysis for given category. The percentages are rounded off to the next decimal value.

ArmMeasureGroupValue (NUMBER)
PlaceboPercentage of Participants With Abnormal Vital Signs ValuesSBP (millimeters of mercury [mmHg]): >1501.3 percentage of participants
PlaceboPercentage of Participants With Abnormal Vital Signs ValuesDBP (mmHg): >954.0 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Vital Signs ValuesPulse Rate (beats per minute [bpm]): <501.4 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Vital Signs ValuesPulse Rate (beats per minute [bpm]): >1201.4 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Vital Signs ValuesTemperature (Celsius [C]): <35.63.1 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Vital Signs ValuesDBP (mmHg): >954.2 percentage of participants
Alogliptin 25 mgPercentage of Participants With Abnormal Vital Signs ValuesSBP (millimeters of mercury [mmHg]): >1502.8 percentage of participants
Secondary

Percentage of Participants With Clinically Significant Physical Examination Findings

Physical examination included examination of the following body systems: (1) respiratory system; (2) cardiovascular system; (3) nervous system (4) dermatologic system; and (5) gastrointestinal system. A summarized data for the above body systems was reported for participants with clinically significant findings.

Time frame: From Day 1 to end of treatment period (up to 52 weeks)

Population: Safety Set included all participants who took at least 1 dose of study medication. Number analyzed is the number of participants available for analysis at the specific time point. Overall number of participants analyzed are the number of participants available for analysis.

ArmMeasureGroupValue (NUMBER)
PlaceboPercentage of Participants With Clinically Significant Physical Examination FindingsWeek 390 percentage of participants
PlaceboPercentage of Participants With Clinically Significant Physical Examination FindingsWeek 120 percentage of participants
PlaceboPercentage of Participants With Clinically Significant Physical Examination FindingsWeek 450 percentage of participants
PlaceboPercentage of Participants With Clinically Significant Physical Examination FindingsWeek 520 percentage of participants
PlaceboPercentage of Participants With Clinically Significant Physical Examination FindingsWeek 40 percentage of participants
PlaceboPercentage of Participants With Clinically Significant Physical Examination FindingsWeek 260 percentage of participants
PlaceboPercentage of Participants With Clinically Significant Physical Examination FindingsWeek 180 percentage of participants
PlaceboPercentage of Participants With Clinically Significant Physical Examination FindingsWeek 320 percentage of participants
Alogliptin 25 mgPercentage of Participants With Clinically Significant Physical Examination FindingsWeek 520 percentage of participants
Alogliptin 25 mgPercentage of Participants With Clinically Significant Physical Examination FindingsWeek 120 percentage of participants
Alogliptin 25 mgPercentage of Participants With Clinically Significant Physical Examination FindingsWeek 180 percentage of participants
Alogliptin 25 mgPercentage of Participants With Clinically Significant Physical Examination FindingsWeek 260 percentage of participants
Alogliptin 25 mgPercentage of Participants With Clinically Significant Physical Examination FindingsWeek 390 percentage of participants
Secondary

Percentage of Participants With Hypoglycemia

Mild to moderate hypoglycemia (abnormal low blood sugar) was defined as blood glucose less than (\<) 60 milligram per deciliter (mg/dL) (3.33 millimole per liter \[mmol/L\]) in the presence of symptoms, or blood glucose \<50 mg/dL (2.78 mmol/L) with or without symptoms. Severe hypoglycemia was defined as any episode requiring the assistance of another person to actively administer carbohydrate, glucagon, or other resuscitative actions, associated with a documented blood glucose \<60 mg/dL (3.33 mmol/L) (unless the clinical situation makes obtaining a blood glucose difficult \[example, it involves coma or seizure\]).

Time frame: From Day 1 to end of treatment period (up to 52 weeks)

Population: Safety Set included all participants who took at least 1 dose of study medication.

ArmMeasureValue (NUMBER)
PlaceboPercentage of Participants With Hypoglycemia7.9 percentage of participants
Alogliptin 25 mgPercentage of Participants With Hypoglycemia5.3 percentage of participants
Secondary

Percentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity Reactions

The percentage of participants are calculated based on the participants with non-missing data at that time-point.

Time frame: From Day 1 to end of treatment period (up to 52 weeks)

Population: Safety Set included all participants who took at least 1 dose of study medication. Number analyzed are the number of participants with data available for analysis for given category. The percentages are rounded off to the next decimal value.

ArmMeasureGroupValue (NUMBER)
PlaceboPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsSinus Infection9.1 percentage of participants
PlaceboPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsBladder Infection0.0 percentage of participants
PlaceboPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsUpper Respiratory Infection18.2 percentage of participants
PlaceboPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsLow Urinary Tract Infection0.0 percentage of participants
PlaceboPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsUpper Respiratory Tract Infection9.1 percentage of participants
PlaceboPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsCOVID-19 Infection9.1 percentage of participants
PlaceboPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsLower Urinary Tract Infection9.1 percentage of participants
PlaceboPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsLower Respiratory Tract Infection9.1 percentage of participants
Alogliptin 25 mgPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsLower Urinary Tract Infection0.0 percentage of participants
Alogliptin 25 mgPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsBladder Infection11.1 percentage of participants
Alogliptin 25 mgPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsCOVID-19 Infection0.0 percentage of participants
Alogliptin 25 mgPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsLow Urinary Tract Infection11.1 percentage of participants
Alogliptin 25 mgPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsSinus Infection11.1 percentage of participants
Alogliptin 25 mgPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsUpper Respiratory Infection44.4 percentage of participants
Alogliptin 25 mgPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsUpper Respiratory Tract Infection0.0 percentage of participants
Alogliptin 25 mgPercentage of Participants With Total, Urinary and Respiratory Tract Infections and Hypersensitivity ReactionsLower Respiratory Tract Infection11.1 percentage of participants
Secondary

Percentage of Participants With Treatment-emergent Adverse Events (TEAE)

An AE was defined as any untoward medical occurrence in a clinical investigation participant administered a drug; it does not necessarily have to have a causal relationship with this treatment.

Time frame: From the study start up to end of the study (up to 54 weeks)

Population: Safety Set included all participants who took at least 1 dose of study medication.

ArmMeasureValue (NUMBER)
PlaceboPercentage of Participants With Treatment-emergent Adverse Events (TEAE)76.3 percentage of participants
Alogliptin 25 mgPercentage of Participants With Treatment-emergent Adverse Events (TEAE)80.0 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026