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Efficacy and Safety of Efpeglenatide Versus Placebo in Patients With Type 2 Diabetes Mellitus Inadequately Controlled With Metformin Alone or in Combination With Sulfonylurea

A 30-week, Multicenter, Double-blind, Placebo-controlled, Randomized Study to Evaluate the Efficacy and Safety of Efpeglenatide Once Weekly in Patients With Type 2 Diabetes Mellitus Inadequately Controlled With Metformin Alone or in Combination With Sulfonylurea

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03770728
Acronym
AMPLITUDE-S
Enrollment
312
Registered
2018-12-10
Start date
2019-08-01
Completion date
2020-12-27
Last updated
2021-12-02

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

Conditions

Type 2 Diabetes Mellitus

Brief summary

Primary Objective: To demonstrate the superiority of once weekly injection of efpeglenatide in comparison to placebo in glycated hemoglobin (HbA1c) change in participants with type 2 diabetes mellitus (T2DM) inadequately controlled with metformin alone or in combination with sulfonylurea (SU). Secondary Objectives: * To demonstrate the superiority of once weekly injection of efpeglenatide in comparison to placebo on glycemic control. * To demonstrate the superiority of once weekly injection of efpeglenatide in comparison to placebo on body weight. * To evaluate the safety of once weekly injection of efpeglenatide.

Detailed description

Study duration per participant was approximately 39 weeks including an up to 3-week Screening Period, a 30-week Treatment Period, and a 6-week safety Follow-up Period.

Interventions

Pharmaceutical form: solution for injection Route of administration: subcutaneous

DRUGPlacebo

Pharmaceutical form: solution for injection Route of administration: subcutaneous

DRUGBackground therapy: Metformin alone or in combination with SU

Pharmaceutical form: tablet Route of administration: oral, administered as per investigator and in accordance with local labeling.

Sponsors

Hanmi Pharmaceutical Company Limited
CollaboratorINDUSTRY
Sanofi
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 No maximum
Healthy volunteers
No

Inclusion criteria

* Participant must be greater than or equal to (\>=)18 years of age at the time of signing the informed consent. * Participants with T2DM. * Diabetes diagnosed at least 1 year before screening. * Participants on metformin alone or in combination with SU, for at least 3 months prior to screening. * Glycated hemoglobin between 7.0% and 10.0% (inclusive) measured by the central laboratory at screening.

Exclusion criteria

* History of severe hypoglycemia requiring emergency room admission or hospitalization within 3 months prior to screening. * Retinopathy or maculopathy with one of the following treatments, either recent (within 3 months prior to screening) or planned: intravitreal injections or laser or vitrectomy surgery. * Clinically relevant history of gastrointestinal disease associated with prolonged nausea and vomiting, including (but not limited to) gastroparesis, unstable and not controlled gastroesophageal reflux disease requiring medical treatment within 6 months prior to screening or history of surgery affecting gastric emptying. * History of pancreatitis (unless pancreatitis was related to gallstones and cholecystectomy has been performed), pancreatitis during previous treatment with incretin therapies, chronic pancreatitis, pancreatectomy. * Personal or family history of medullary thyroid cancer (MTC) or genetic conditions that predispose to MTC (e.g., multiple endocrine neoplasia syndromes). * Body weight change of \>=5 kilograms within the last 3 months prior to screening. * Systolic blood pressure greater than (\>)180 millimeters of mercury (mmHg) and/or diastolic blood pressure \>100 mmHg at randomization. * Severe renal disease as defined by estimated glomerular filtration rate (eGFR) of \<30 milliliters per minute per 1.73 square meter. * Laboratory findings at the screening visit: * Alanine aminotransferase or aspartate aminotransferase \>3\*upper limit of the normal (ULN) or total bilirubin \>1.5\*ULN (except in case of documented Gilbert's syndrome); * Amylase and/or lipase: \>3\*ULN laboratory range; * Calcitonin \>=5.9 picomoles per liter (20 picograms per milliliter). * Gastric surgery or other gastric procedures intended for weight loss within 2 years prior to screening, or planned during study period. * Pregnant (confirmed by serum pregnancy test at screening) or breast-feeding women. * Women of childbearing potential not willing to use highly effective method(s) of birth control or who are unwilling to be tested for pregnancy during the study period and for at least 5 weeks after the last dose of study intervention. The above information was not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline to Week 30 in HbA1cBaseline to Week 30This analysis included all Week 30 assessment values available.

Secondary

MeasureTime frameDescription
Number of Participants With HbA1c <7.0%Week 30Participants who had no available assessment for HbA1c \<7% at Week 30 were considered as non-responders.
Change From Baseline to Week 30 in Fasting Plasma Glucose (FPG)Baseline to Week 30This analysis included all Week 30 assessment values available.
Change From Baseline to Week 30 in Body WeightBaseline to Week 30This analysis included all Week 30 assessment values available.
Number of Participants With At Least One Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL], Severe Hypoglycemia)Baseline up to Week 30Documented symptomatic hypoglycemia was an event during which typical symptoms of hypoglycemia were accompanied by a measured plasma glucose concentration of \<54 milligrams per deciliter (mg/dL) (\<3.0 mmol/L). Severe hypoglycemia was an event requiring assistance of another person to actively administer carbohydrate, glucagon, or other resuscitative actions.
Number of Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL] and Severe Hypoglycemia) Per Participant-YearBaseline up to Week 30Documented symptomatic hypoglycemia was an event during which typical symptoms of hypoglycemia were accompanied by a measured plasma glucose concentration of \<54 mg/dL (\<3.0 mmol/L). Severe hypoglycemia was an event requiring assistance of another person to actively administer carbohydrate, glucagon, or other resuscitative actions.

Countries

China, Taiwan, United States

Participant flow

Recruitment details

The study was conducted at 48 active sites in 3 countries. A total of 560 participants were screened between 01 August 2019 and 09 August 2020, out of which 248 were screen failures. Screen failures were mainly due to inclusion criteria not met.

Pre-assignment details

A total of 312 participants were randomized in 1:1:1:1 ratio to either placebo, efpeglenatide 2 milligrams (mg), efpeglenatide 4 mg, or efpeglenatide 6 mg treatment arms, stratified by screening glycated hemoglobin (HbA1c) values (less than \[\<\]8%, greater than or equal to \[\>=\]8%) and sulfonylurea (SU) use at screening (Yes/No).

Participants by arm

ArmCount
Placebo
Participants received placebo (matched to Efpeglenatide) SC injection once weekly up to Week 30 on top of metformin alone or in combination with SU.
79
Efpeglenatide 2 mg
Participants received Efpeglenatide 2 mg SC injection once weekly up to Week 30 on top of metformin alone or in combination with SU.
78
Efpeglenatide 4 mg
Participants received Efpeglenatide 4 mg SC injection once weekly up to Week 30 on top of metformin alone or in combination with SU. Participants initiated dosing at 2 mg once weekly up to Week 1; which was up titrated to 4 mg and was maintained at the 4 mg dose through-out the treatment duration, up to Week 30.
77
Efpeglenatide 6 mg
Participants received Efpeglenatide 6 mg SC injection once weekly up to Week 30 on top of metformin alone or in combination with SU. Participants initiated dosing at 2 mg once weekly up to Week 1; which was up titrated to 4 mg until Week 3 and later up-titrated to 6 mg and was maintained at the 6 mg dose through-out the treatment duration, up to Week 30.
78
Total312

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event1010
Overall StudyOther than specified24232122
Overall StudyPoor compliance to protocol0010
Overall StudyWithdrawal by Subject138913

Baseline characteristics

CharacteristicEfpeglenatide 2 mgPlaceboEfpeglenatide 4 mgEfpeglenatide 6 mgTotal
Age, Continuous60.1 years
STANDARD_DEVIATION 10.9
58.9 years
STANDARD_DEVIATION 10.6
57.9 years
STANDARD_DEVIATION 10.5
58.8 years
STANDARD_DEVIATION 11.5
58.9 years
STANDARD_DEVIATION 10.9
Baseline Glycated Hemoglobin (HbA1c %)8.07 percentage of HbA1c
STANDARD_DEVIATION 0.76
8.09 percentage of HbA1c
STANDARD_DEVIATION 0.79
8.15 percentage of HbA1c
STANDARD_DEVIATION 0.69
8.09 percentage of HbA1c
STANDARD_DEVIATION 0.79
8.10 percentage of HbA1c
STANDARD_DEVIATION 0.76
Body Mass Index (BMI)31.8 kilogram per square meter (kg/m^2)
STANDARD_DEVIATION 7.7
32.2 kilogram per square meter (kg/m^2)
STANDARD_DEVIATION 7.1
32.0 kilogram per square meter (kg/m^2)
STANDARD_DEVIATION 6.3
32.4 kilogram per square meter (kg/m^2)
STANDARD_DEVIATION 7.4
32.1 kilogram per square meter (kg/m^2)
STANDARD_DEVIATION 7.1
Race/Ethnicity, Customized
Asian
24 Participants24 Participants26 Participants22 Participants96 Participants
Race/Ethnicity, Customized
Black or African American
10 Participants11 Participants4 Participants7 Participants32 Participants
Race/Ethnicity, Customized
Not reported
0 Participants0 Participants0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Other
1 Participants2 Participants1 Participants0 Participants4 Participants
Race/Ethnicity, Customized
White
43 Participants42 Participants46 Participants48 Participants179 Participants
Sex: Female, Male
Female
34 Participants34 Participants33 Participants39 Participants140 Participants
Sex: Female, Male
Male
44 Participants45 Participants44 Participants39 Participants172 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 790 / 780 / 800 / 75
other
Total, other adverse events
21 / 7930 / 7836 / 8032 / 75
serious
Total, serious adverse events
3 / 794 / 785 / 802 / 75

Outcome results

Primary

Change From Baseline to Week 30 in HbA1c

This analysis included all Week 30 assessment values available.

Time frame: Baseline to Week 30

Population: Analysis was performed on Intent-to-treat (ITT) population, which included all participants randomized irrespective of rescue therapy use and compliance with the study protocol and procedures, and were analyzed according to the treatment group allocated by randomization. Here, Overall number of participants analyzed= participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
PlaceboChange From Baseline to Week 30 in HbA1c-0.27 percentage of HbA1cStandard Deviation 0.92
Efpeglenatide 2 mgChange From Baseline to Week 30 in HbA1c-1.05 percentage of HbA1cStandard Deviation 0.88
Efpeglenatide 4 mgChange From Baseline to Week 30 in HbA1c-1.46 percentage of HbA1cStandard Deviation 0.9
Efpeglenatide 6 mgChange From Baseline to Week 30 in HbA1c-1.36 percentage of HbA1cStandard Deviation 1.09
Secondary

Change From Baseline to Week 30 in Body Weight

This analysis included all Week 30 assessment values available.

Time frame: Baseline to Week 30

Population: Analysis was performed on ITT population. Here, Overall number of participants analyzed= participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
PlaceboChange From Baseline to Week 30 in Body Weight-1.89 kilogramsStandard Deviation 5.53
Efpeglenatide 2 mgChange From Baseline to Week 30 in Body Weight-2.49 kilogramsStandard Deviation 3.93
Efpeglenatide 4 mgChange From Baseline to Week 30 in Body Weight-2.72 kilogramsStandard Deviation 6.49
Efpeglenatide 6 mgChange From Baseline to Week 30 in Body Weight-3.87 kilogramsStandard Deviation 4.62
Secondary

Change From Baseline to Week 30 in Fasting Plasma Glucose (FPG)

This analysis included all Week 30 assessment values available.

Time frame: Baseline to Week 30

Population: Analysis was performed on ITT population. Here, Overall number of participants analyzed= participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
PlaceboChange From Baseline to Week 30 in Fasting Plasma Glucose (FPG)0.12 millimoles per liter (mmol/L)Standard Deviation 2.37
Efpeglenatide 2 mgChange From Baseline to Week 30 in Fasting Plasma Glucose (FPG)-0.97 millimoles per liter (mmol/L)Standard Deviation 2.43
Efpeglenatide 4 mgChange From Baseline to Week 30 in Fasting Plasma Glucose (FPG)-1.75 millimoles per liter (mmol/L)Standard Deviation 2.43
Efpeglenatide 6 mgChange From Baseline to Week 30 in Fasting Plasma Glucose (FPG)-1.20 millimoles per liter (mmol/L)Standard Deviation 4.68
Secondary

Number of Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL] and Severe Hypoglycemia) Per Participant-Year

Documented symptomatic hypoglycemia was an event during which typical symptoms of hypoglycemia were accompanied by a measured plasma glucose concentration of \<54 mg/dL (\<3.0 mmol/L). Severe hypoglycemia was an event requiring assistance of another person to actively administer carbohydrate, glucagon, or other resuscitative actions.

Time frame: Baseline up to Week 30

Population: Analysis was performed on safety population.

ArmMeasureGroupValue (NUMBER)
PlaceboNumber of Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL] and Severe Hypoglycemia) Per Participant-YearDocumented symptomatic hypoglycemia (<54 mg/dL)0.03 events per participant-year
PlaceboNumber of Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL] and Severe Hypoglycemia) Per Participant-YearSevere hypoglycemia0 events per participant-year
Efpeglenatide 2 mgNumber of Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL] and Severe Hypoglycemia) Per Participant-YearSevere hypoglycemia0 events per participant-year
Efpeglenatide 2 mgNumber of Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL] and Severe Hypoglycemia) Per Participant-YearDocumented symptomatic hypoglycemia (<54 mg/dL)0 events per participant-year
Efpeglenatide 4 mgNumber of Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL] and Severe Hypoglycemia) Per Participant-YearDocumented symptomatic hypoglycemia (<54 mg/dL)0.06 events per participant-year
Efpeglenatide 4 mgNumber of Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL] and Severe Hypoglycemia) Per Participant-YearSevere hypoglycemia0 events per participant-year
Efpeglenatide 6 mgNumber of Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL] and Severe Hypoglycemia) Per Participant-YearDocumented symptomatic hypoglycemia (<54 mg/dL)0.14 events per participant-year
Efpeglenatide 6 mgNumber of Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL] and Severe Hypoglycemia) Per Participant-YearSevere hypoglycemia0 events per participant-year
Secondary

Number of Participants With At Least One Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL], Severe Hypoglycemia)

Documented symptomatic hypoglycemia was an event during which typical symptoms of hypoglycemia were accompanied by a measured plasma glucose concentration of \<54 milligrams per deciliter (mg/dL) (\<3.0 mmol/L). Severe hypoglycemia was an event requiring assistance of another person to actively administer carbohydrate, glucagon, or other resuscitative actions.

Time frame: Baseline up to Week 30

Population: Analysis was performed on safety population.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PlaceboNumber of Participants With At Least One Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL], Severe Hypoglycemia)Documented symptomatic hypoglycemia (<54 mg/dL)1 Participants
PlaceboNumber of Participants With At Least One Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL], Severe Hypoglycemia)Severe hypoglycemia0 Participants
Efpeglenatide 2 mgNumber of Participants With At Least One Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL], Severe Hypoglycemia)Severe hypoglycemia0 Participants
Efpeglenatide 2 mgNumber of Participants With At Least One Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL], Severe Hypoglycemia)Documented symptomatic hypoglycemia (<54 mg/dL)0 Participants
Efpeglenatide 4 mgNumber of Participants With At Least One Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL], Severe Hypoglycemia)Documented symptomatic hypoglycemia (<54 mg/dL)2 Participants
Efpeglenatide 4 mgNumber of Participants With At Least One Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL], Severe Hypoglycemia)Severe hypoglycemia0 Participants
Efpeglenatide 6 mgNumber of Participants With At Least One Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL], Severe Hypoglycemia)Documented symptomatic hypoglycemia (<54 mg/dL)3 Participants
Efpeglenatide 6 mgNumber of Participants With At Least One Hypoglycemic Events (Documented Symptomatic Hypoglycemia <3.0 mmol/L [<54 mg/dL], Severe Hypoglycemia)Severe hypoglycemia0 Participants
Secondary

Number of Participants With HbA1c <7.0%

Participants who had no available assessment for HbA1c \<7% at Week 30 were considered as non-responders.

Time frame: Week 30

Population: Analysis was performed on ITT population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
PlaceboNumber of Participants With HbA1c <7.0%11 Participants
Efpeglenatide 2 mgNumber of Participants With HbA1c <7.0%27 Participants
Efpeglenatide 4 mgNumber of Participants With HbA1c <7.0%33 Participants
Efpeglenatide 6 mgNumber of Participants With HbA1c <7.0%32 Participants

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