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A Study to Determine the Long Term Safety and Efficacy of Albiglutide in Combination With Oral Monotherapy Antihyperglycemic Medications in Japanese Patients With Type 2 Diabetes Mellitus

A 52-Week, Open-Label, Multicenter Study to Determine the Long Term Safety and Efficacy of Albiglutide in Combination With Monotherapy of Oral Antihyperglycemic Medications in Japanese Patients With Type 2 Diabetes Mellitus

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01777282
Enrollment
374
Registered
2013-01-28
Start date
2013-02-23
Completion date
2015-01-27
Last updated
2017-05-03

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

Conditions

Diabetes Mellitus

Keywords

albiglutide, Japanese, glucagon-like peptide-1, GSK716155

Brief summary

This study is designed to examine the long term safety and efficacy of weekly subcutaneously injected albiglutide in combination with a single oral antidiabetic drug for 52 weeks in Japanese subjects with type 2 diabetes mellitus.

Detailed description

This study is designed to examine the long term safety and efficacy of weekly subcutaneously injected albiglutide in combination with a single oral antidiabetic drug for 52 weeks in Japanese subjects with type 2 diabetes mellitus. Subjects with a historical diagnosis of type 2 diabetes mellitus who are inadequately controlled on a single oral antidiabetic agent will be recruited into the study. Subjects will continue on their single antidiabetic agent and once weekly albiglutide will be added.

Interventions

Albiglutide is a fixed-dose, fully disposable pen injector system for delivery of albiglutide from a prefilled dual chamber glass cartridge that is an integral part of the pen. It is intended for single use by the subject. It is designed for manual reconstitution of the dose, priming, and insertion of the pen needle, and manual injection by the subject. The subject will inject albiglutide 30 mg weekly for 52 weeks (with optional uptitration to 50 mg weekly) subcutaneously into the abdomen, alternating between left and right sides. The pen is designed to work with standard pen needles.

DRUGSulfonylurea

Single oral antidiabetic drug as a background therapy, to be continued as previously prescribed.

Single oral antidiabetic drug as a background therapy, to be continued as previously prescribed.

Single oral antidiabetic drug as a background therapy, to be continued as previously prescribed.

Single oral antidiabetic drug as a background therapy, to be continued as previously prescribed.

Single oral antidiabetic drug as a background therapy, to be continued as previously prescribed.

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subjects with diagnosis of Type 2 Diabetes Mellitus, who are experiencing inadequate glycemic control and receiving treatment with a stable dose of a single oral antidiabetic medication * Body mass index (BMI) 17 to 40 kg/ m2 inclusive * Subjects with an HbA1c between 7.0% and 10.0% at Screening * Creatinine clearance \>30 mL/min (calculated using the Cockcroft-Gault formula)

Exclusion criteria

* History of type 1 diabetes mellitus * Female subject is pregnant, lactating, or \<6 weeks postpartum * Clinically significant cardiovascular and/or cerebrovascular disease * Current ongoing symptomatic biliary disease, clinical signs or symptoms of pancreatitis, or a history of chronic or acute pancreatitis, as determined by the investigator * Serum amylase \>=3 ×ULN and/or serum lipase \>=2 × ULN and/or subject is experiencing any symptoms possibly related to pancreatitis * Prior use of a GLP-1R agonist or DPP-IV inhibitor within 6 months before Screening

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Any Adverse Event (AE) or Any Serious Adverse Event (SAE)From Baseline through Week 52An AE is defined as any untoward medical occurrence in a clinical investigation participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a medicinal product. An SAE is defined as any untoward medical occurrence that, at any dose, results in death, is life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect, may jeopardize the participant or may require medical or surgical intervention to prevent one of the other outcomes listed in this definition, or is an event of possible drug-induced liver injury. Refer to the general AE/SAE module for a list of non-serious AEs and SAEs. Non-serious hypoglycemia events are not included.
Number of Participants With Any Hypoglycemic EventFrom Baseline through Week 52Hypoglycemia events are defined with respect to low plasma glucose level, mostly accompanied by typical symptoms and/or assistance needed from third party with glucose administration. These events were reported by the investigators upon verification of the plasma glucose levels, symptoms and assistance recorded by the participants, and/or plasma glucose values obtained from laboratory evaluations.

Secondary

MeasureTime frameDescription
Change From Baseline in Fasting Plasma Glucose (FPG) at Week 52Baseline and Week 52FPG is an indicator of efficacy. The Baseline FPG value is defined as the last non-missing value before the start of treatment. Change from Baseline was calculated as the FPG value at Week 52 minus the FPG value at Baseline. Participants who discontinued from study treatment before Week 52 had their last on-treatment, post-Baseline FPG observation carried forward for the analysis.
Change From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 52Baseline and Week 52HbA1c is a form of hemoglobin that is measured primarily to identify the average plasma glucose concentration over a 2- to 3-month period. The Baseline HbA1c value is defined as the last non-missing value before the start of treatment. Change from Baseline was calculated as the value at Week 52 minus the value at Baseline. Participants who discontinued from study treatment before Week 52 had their last on-treatment, post-Baseline HbA1c observation carried forward for the analysis.
Time to Study Withdrawal Due to HyperglycemiaWeek 52Participants who experienced persistent hyperglycemia after uptitration were to be withdrawn from the study. Hyperglycemia is defined as a fasting plasma glucose \>=280 mg/dL (\>=15.5 mmol/L) from \>=Week 2 to \<Week 12 or \>=230 mg/dL (\>=12.8 mmol/L) from \>=Week 12 to \<Week 52.
Change From Baseline in Body Weight at Week 52Baseline and Week 52The Baseline body weight value is defined as the last non-missing value before the start of treatment. Change from Baseline was calculated as the body weight value at Week 52 minus the value at Baseline. Participants who discontinued from study treatment before Week 52 had their last on-treatment, post-Baseline weight observation carried forward for the analysis.
Percentage of Participants Achieving Clinically Meaningful Levels of HbA1c (i.e., the Percentage of Participants Achieving Treatment Goal of <6.5% and <7.0% at Week 52)Week 52HbA1c is a form of hemoglobin that is measured primarily to identify the average plasma glucose concentration over a 2- to 3 month period. The Baseline HbA1c value is defined as the last non-missing value before the start of treatment. Participants who discontinued from study treatment before Week 52 had their last on-treatment, post-Baseline HbA1c observation carried forward for the analysis. Clinically meaningful levels of response in HbA1c are defined as \<6.5% and \<7.0%.

Countries

Japan

Participant flow

Recruitment details

A total of 360 participants with type 2 diabetes mellitus (T2DM) were planned and 374 participants were enrolled and analyzed in the Safety Population; the Safety Population and Intent-to-Treat Population were identical in this study.

Pre-assignment details

Eligible participants entered a 2-week Screening Period; a 52-week Treatment Period and an 8-week Follow-up (FU) Period.

Participants by arm

ArmCount
Albiglutide Plus (+) Background OAD (Sulfonylurea)
Participants received current regimen of 30 milligrams (mg) albiglutide + sulfonylurea (with titration to 50 mg at Week 4 or later based on specific guidelines on glycemic control) through Week 52.
120
Albiglutide Plus (+) Background OAD (Biguanide)
Participants received current regimen of 30 mg albiglutide + biguanide (with titration to 50 mg at Week 4 or later based on specific guidelines on glycemic control) through Week 52.
67
Albiglutide Plus (+) Background OAD (Glinide)
Participants received current regimen of 30 mg albiglutide + glinide as a subcutaneous injection weekly (with titration to 50 mg at Week 4 or later based on specific guidelines on glycemic control) through Week 52.
65
Albiglutide Plus (+) Background OAD (Thiazolidinedione)
Participants received current regimen of 30 mg albiglutide + thiazolidinedione as a subcutaneous injection weekly (with titration to 50 mg at Week 4 or later based on specific guidelines on glycemic control) through Week 52.
61
Albiglutide Plus (+) Background OAD (α-Glucosidase Inhibitor)
Participants received current regimen of 30 mg albiglutide + α-glucosidase inhibitor as a subcutaneous injection weekly (with titration to 50 mg at Week 4 or later based on specific guidelines on glycemic control) through Week 52.
61
Total374

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004
Overall StudyAdverse Event44213
Overall StudyMoved, transfer abroad, did not enter FU10100
Overall StudyNew Antidiabetic Medication00100
Overall StudyPersistent Hyperglycemia00100
Overall StudyProtocol Violation20102
Overall StudyWithdrawal by Subject40012

Baseline characteristics

CharacteristicAlbiglutide Plus (+) Background OAD (Sulfonylurea)Albiglutide Plus (+) Background OAD (Biguanide)Albiglutide Plus (+) Background OAD (Glinide)Albiglutide Plus (+) Background OAD (Thiazolidinedione)Albiglutide Plus (+) Background OAD (α-Glucosidase Inhibitor)Total
Age, Continuous58.5 Years
STANDARD_DEVIATION 9.19
57.0 Years
STANDARD_DEVIATION 8.55
55.7 Years
STANDARD_DEVIATION 11.07
59.0 Years
STANDARD_DEVIATION 10.54
57.4 Years
STANDARD_DEVIATION 10.47
57.7 Years
STANDARD_DEVIATION 9.89
Race/Ethnicity, Customized
Asian - Japanese Heritage
120 Participants67 Participants65 Participants61 Participants61 Participants374 Participants
Sex: Female, Male
Female
33 Participants22 Participants22 Participants11 Participants20 Participants108 Participants
Sex: Female, Male
Male
87 Participants45 Participants43 Participants50 Participants41 Participants266 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —
other
Total, other adverse events
68 / 12031 / 6738 / 6535 / 6124 / 61
serious
Total, serious adverse events
2 / 1200 / 671 / 652 / 613 / 61

Outcome results

Primary

Number of Participants With Any Adverse Event (AE) or Any Serious Adverse Event (SAE)

An AE is defined as any untoward medical occurrence in a clinical investigation participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a medicinal product. An SAE is defined as any untoward medical occurrence that, at any dose, results in death, is life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect, may jeopardize the participant or may require medical or surgical intervention to prevent one of the other outcomes listed in this definition, or is an event of possible drug-induced liver injury. Refer to the general AE/SAE module for a list of non-serious AEs and SAEs. Non-serious hypoglycemia events are not included.

Time frame: From Baseline through Week 52

Population: Safety Population: all participants who received at least 1 dose of study treatment.

ArmMeasureGroupValue (NUMBER)
Albiglutide Plus (+) Background OAD (Sulfonylurea)Number of Participants With Any Adverse Event (AE) or Any Serious Adverse Event (SAE)Any AE97 Participants
Albiglutide Plus (+) Background OAD (Sulfonylurea)Number of Participants With Any Adverse Event (AE) or Any Serious Adverse Event (SAE)Any SAE2 Participants
Albiglutide Plus (+) Background OAD (Biguanide)Number of Participants With Any Adverse Event (AE) or Any Serious Adverse Event (SAE)Any AE47 Participants
Albiglutide Plus (+) Background OAD (Biguanide)Number of Participants With Any Adverse Event (AE) or Any Serious Adverse Event (SAE)Any SAE0 Participants
Albiglutide Plus (+) Background OAD (Glinide)Number of Participants With Any Adverse Event (AE) or Any Serious Adverse Event (SAE)Any AE58 Participants
Albiglutide Plus (+) Background OAD (Glinide)Number of Participants With Any Adverse Event (AE) or Any Serious Adverse Event (SAE)Any SAE1 Participants
Albiglutide Plus (+) Background OAD (Thiazolidinedione)Number of Participants With Any Adverse Event (AE) or Any Serious Adverse Event (SAE)Any SAE2 Participants
Albiglutide Plus (+) Background OAD (Thiazolidinedione)Number of Participants With Any Adverse Event (AE) or Any Serious Adverse Event (SAE)Any AE49 Participants
Albiglutide Plus (+) Background OAD (α-Glucosidase Inhibitor)Number of Participants With Any Adverse Event (AE) or Any Serious Adverse Event (SAE)Any AE43 Participants
Albiglutide Plus (+) Background OAD (α-Glucosidase Inhibitor)Number of Participants With Any Adverse Event (AE) or Any Serious Adverse Event (SAE)Any SAE3 Participants
Primary

Number of Participants With Any Hypoglycemic Event

Hypoglycemia events are defined with respect to low plasma glucose level, mostly accompanied by typical symptoms and/or assistance needed from third party with glucose administration. These events were reported by the investigators upon verification of the plasma glucose levels, symptoms and assistance recorded by the participants, and/or plasma glucose values obtained from laboratory evaluations.

Time frame: From Baseline through Week 52

Population: Safety Population: all participants who received at least 1 dose of study treatment.

ArmMeasureValue (NUMBER)
Albiglutide Plus (+) Background OAD (Sulfonylurea)Number of Participants With Any Hypoglycemic Event17 Participants
Albiglutide Plus (+) Background OAD (Biguanide)Number of Participants With Any Hypoglycemic Event1 Participants
Albiglutide Plus (+) Background OAD (Glinide)Number of Participants With Any Hypoglycemic Event4 Participants
Albiglutide Plus (+) Background OAD (Thiazolidinedione)Number of Participants With Any Hypoglycemic Event2 Participants
Albiglutide Plus (+) Background OAD (α-Glucosidase Inhibitor)Number of Participants With Any Hypoglycemic Event0 Participants
Secondary

Change From Baseline in Body Weight at Week 52

The Baseline body weight value is defined as the last non-missing value before the start of treatment. Change from Baseline was calculated as the body weight value at Week 52 minus the value at Baseline. Participants who discontinued from study treatment before Week 52 had their last on-treatment, post-Baseline weight observation carried forward for the analysis.

Time frame: Baseline and Week 52

Population: Intent-to-Treat (Last Observation Carried Forward) Population

ArmMeasureValue (MEAN)Dispersion
Albiglutide Plus (+) Background OAD (Sulfonylurea)Change From Baseline in Body Weight at Week 520.25 Kilograms (kg)Standard Deviation 2.167
Albiglutide Plus (+) Background OAD (Biguanide)Change From Baseline in Body Weight at Week 52-0.33 Kilograms (kg)Standard Deviation 2.082
Albiglutide Plus (+) Background OAD (Glinide)Change From Baseline in Body Weight at Week 52-0.04 Kilograms (kg)Standard Deviation 2.405
Albiglutide Plus (+) Background OAD (Thiazolidinedione)Change From Baseline in Body Weight at Week 520.52 Kilograms (kg)Standard Deviation 2.823
Albiglutide Plus (+) Background OAD (α-Glucosidase Inhibitor)Change From Baseline in Body Weight at Week 52-0.13 Kilograms (kg)Standard Deviation 2.62
Secondary

Change From Baseline in Fasting Plasma Glucose (FPG) at Week 52

FPG is an indicator of efficacy. The Baseline FPG value is defined as the last non-missing value before the start of treatment. Change from Baseline was calculated as the FPG value at Week 52 minus the FPG value at Baseline. Participants who discontinued from study treatment before Week 52 had their last on-treatment, post-Baseline FPG observation carried forward for the analysis.

Time frame: Baseline and Week 52

Population: Intent-to-Treat (Last Observation Carried Forward) Population. Only those participants with valid post-Baseline results (within 14 days of last exposure to treatment) were analyzed.

ArmMeasureValue (MEAN)Dispersion
Albiglutide Plus (+) Background OAD (Sulfonylurea)Change From Baseline in Fasting Plasma Glucose (FPG) at Week 52-16.4 Milligrams per deciliter (mg/dL)Standard Deviation 28.52
Albiglutide Plus (+) Background OAD (Biguanide)Change From Baseline in Fasting Plasma Glucose (FPG) at Week 52-24.3 Milligrams per deciliter (mg/dL)Standard Deviation 19.98
Albiglutide Plus (+) Background OAD (Glinide)Change From Baseline in Fasting Plasma Glucose (FPG) at Week 52-16.4 Milligrams per deciliter (mg/dL)Standard Deviation 30.37
Albiglutide Plus (+) Background OAD (Thiazolidinedione)Change From Baseline in Fasting Plasma Glucose (FPG) at Week 52-32.1 Milligrams per deciliter (mg/dL)Standard Deviation 27.21
Albiglutide Plus (+) Background OAD (α-Glucosidase Inhibitor)Change From Baseline in Fasting Plasma Glucose (FPG) at Week 52-33.2 Milligrams per deciliter (mg/dL)Standard Deviation 28.38
Secondary

Change From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 52

HbA1c is a form of hemoglobin that is measured primarily to identify the average plasma glucose concentration over a 2- to 3-month period. The Baseline HbA1c value is defined as the last non-missing value before the start of treatment. Change from Baseline was calculated as the value at Week 52 minus the value at Baseline. Participants who discontinued from study treatment before Week 52 had their last on-treatment, post-Baseline HbA1c observation carried forward for the analysis.

Time frame: Baseline and Week 52

Population: Intent-to-Treat (Last Observation Carried Forward) Population: all enrolled participants who received at least 1 dose of study medication and who had at least one HbA1c post-Baseline assessment.

ArmMeasureValue (MEAN)Dispersion
Albiglutide Plus (+) Background OAD (Sulfonylurea)Change From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 52-1.04 Percentage of HbA1c in the bloodStandard Deviation 0.657
Albiglutide Plus (+) Background OAD (Biguanide)Change From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 52-0.94 Percentage of HbA1c in the bloodStandard Deviation 0.623
Albiglutide Plus (+) Background OAD (Glinide)Change From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 52-0.95 Percentage of HbA1c in the bloodStandard Deviation 0.836
Albiglutide Plus (+) Background OAD (Thiazolidinedione)Change From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 52-1.42 Percentage of HbA1c in the bloodStandard Deviation 0.771
Albiglutide Plus (+) Background OAD (α-Glucosidase Inhibitor)Change From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 52-1.39 Percentage of HbA1c in the bloodStandard Deviation 0.77
Secondary

Percentage of Participants Achieving Clinically Meaningful Levels of HbA1c (i.e., the Percentage of Participants Achieving Treatment Goal of <6.5% and <7.0% at Week 52)

HbA1c is a form of hemoglobin that is measured primarily to identify the average plasma glucose concentration over a 2- to 3 month period. The Baseline HbA1c value is defined as the last non-missing value before the start of treatment. Participants who discontinued from study treatment before Week 52 had their last on-treatment, post-Baseline HbA1c observation carried forward for the analysis. Clinically meaningful levels of response in HbA1c are defined as \<6.5% and \<7.0%.

Time frame: Week 52

Population: Intent-to-Treat (Last Observation Carried Forward) Population

ArmMeasureGroupValue (NUMBER)
Albiglutide Plus (+) Background OAD (Sulfonylurea)Percentage of Participants Achieving Clinically Meaningful Levels of HbA1c (i.e., the Percentage of Participants Achieving Treatment Goal of <6.5% and <7.0% at Week 52)HbA1c <6.5%20.0 Percentage of participants
Albiglutide Plus (+) Background OAD (Sulfonylurea)Percentage of Participants Achieving Clinically Meaningful Levels of HbA1c (i.e., the Percentage of Participants Achieving Treatment Goal of <6.5% and <7.0% at Week 52)HbA1c <7.0%54.2 Percentage of participants
Albiglutide Plus (+) Background OAD (Biguanide)Percentage of Participants Achieving Clinically Meaningful Levels of HbA1c (i.e., the Percentage of Participants Achieving Treatment Goal of <6.5% and <7.0% at Week 52)HbA1c <6.5%26.9 Percentage of participants
Albiglutide Plus (+) Background OAD (Biguanide)Percentage of Participants Achieving Clinically Meaningful Levels of HbA1c (i.e., the Percentage of Participants Achieving Treatment Goal of <6.5% and <7.0% at Week 52)HbA1c <7.0%59.7 Percentage of participants
Albiglutide Plus (+) Background OAD (Glinide)Percentage of Participants Achieving Clinically Meaningful Levels of HbA1c (i.e., the Percentage of Participants Achieving Treatment Goal of <6.5% and <7.0% at Week 52)HbA1c <6.5%24.6 Percentage of participants
Albiglutide Plus (+) Background OAD (Glinide)Percentage of Participants Achieving Clinically Meaningful Levels of HbA1c (i.e., the Percentage of Participants Achieving Treatment Goal of <6.5% and <7.0% at Week 52)HbA1c <7.0%52.3 Percentage of participants
Albiglutide Plus (+) Background OAD (Thiazolidinedione)Percentage of Participants Achieving Clinically Meaningful Levels of HbA1c (i.e., the Percentage of Participants Achieving Treatment Goal of <6.5% and <7.0% at Week 52)HbA1c <7.0%80.3 Percentage of participants
Albiglutide Plus (+) Background OAD (Thiazolidinedione)Percentage of Participants Achieving Clinically Meaningful Levels of HbA1c (i.e., the Percentage of Participants Achieving Treatment Goal of <6.5% and <7.0% at Week 52)HbA1c <6.5%45.9 Percentage of participants
Albiglutide Plus (+) Background OAD (α-Glucosidase Inhibitor)Percentage of Participants Achieving Clinically Meaningful Levels of HbA1c (i.e., the Percentage of Participants Achieving Treatment Goal of <6.5% and <7.0% at Week 52)HbA1c <6.5%26.2 Percentage of participants
Albiglutide Plus (+) Background OAD (α-Glucosidase Inhibitor)Percentage of Participants Achieving Clinically Meaningful Levels of HbA1c (i.e., the Percentage of Participants Achieving Treatment Goal of <6.5% and <7.0% at Week 52)HbA1c <7.0%67.2 Percentage of participants
Secondary

Time to Study Withdrawal Due to Hyperglycemia

Participants who experienced persistent hyperglycemia after uptitration were to be withdrawn from the study. Hyperglycemia is defined as a fasting plasma glucose \>=280 mg/dL (\>=15.5 mmol/L) from \>=Week 2 to \<Week 12 or \>=230 mg/dL (\>=12.8 mmol/L) from \>=Week 12 to \<Week 52.

Time frame: Week 52

Population: Intent-to-Treat (Last Observation Carried Forward) Population. Only participants who were withdrawn due to hyperglycemia were analyzed.

ArmMeasureValue (MEAN)Dispersion
Albiglutide Plus (+) Background OAD (Sulfonylurea)Time to Study Withdrawal Due to Hyperglycemia13.0 Weeks
Albiglutide Plus (+) Background OAD (Glinide)Time to Study Withdrawal Due to Hyperglycemia16.5 WeeksStandard Deviation 3.54

Source: ClinicalTrials.gov · Data processed: Mar 11, 2026