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Phase 4: Investigational Study to Evaluate Metformin XR Monotherapy Versus Metformin IR Monotherapy in Subjects With Type 2 Diabetes

A 24-Week International, Multi-center, Randomized, Parallel-group, Double-blind Trial to Evaluate Metformin Extended Release Monotherapy Compared to Metformin Immediate Release Monotherapy in Adults Subjects With Type 2 Diabetes Who Have Inadequate Glycemic Control With Diet and Exercise

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01864174
Enrollment
1736
Registered
2013-05-29
Start date
2013-06-20
Completion date
2016-06-01
Last updated
2019-11-29

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

The purpose of this study is determine if Metformin XR monotherapy in subjects with type 2 diabetes is non-inferior to Metformin IR monotherapy

Interventions

DRUGMetformin XR
DRUGPlacebo matching with Metformin XR
DRUGPlacebo matching with Metformin IR

Sponsors

Bristol-Myers Squibb
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

For more information regarding BMS clinical trial participation, please visit www.BMSStudyConnect.com Inclusion Criteria: * Men and women, aged ≥18 years old at time of enrollment * Treatment naive subjects with type 2 diabetes mellitus with inadequate glycemic (HbA1c ≥7.0% and ≤9.2% obtained at screening visit) control on diet and exercise alone * Women must have a negative serum or urine test within 24 hours prior to start of investigational product

Exclusion criteria

* History of ketoacidosis, lactic acidosis or hyperosmolar non-ketonic coma * Symptoms of poorly controlled diabetes, including but not limited to marked polyuria and polydipsia with \>10% weight loss during last 3 months * Serum creatinine ≥1.50 mg/dL (133 μmol/L) for male subjects; serum creatinine ≥1.40 mg/dL (124 μmol/L for female subjects)

Design outcomes

Primary

MeasureTime frameDescription
Adjusted Mean Change From Baseline in HbA1cBaseline and Week 24Mean change in glycated hemoglobin (HbA1c) from baseline to Week 24 in the double-blind treatment period.
Number of Participants With Death, Serious Adverse Events (SAEs), SAEs Related to Study Therapy, SAEs Leading to Discontinuation, Adverse Events (AEs) Related to Study Therapy, and AEs Leading to DiscontinuationDate of first dose (Day 1) up to 30 post last dose of study drug (approx. 28 weeks)SAE=a medical event that at any dose results in death, persistent or significant disability/incapacity, or drug dependency/abuse; is life-threatening, an important medical event, or a congenital anomaly/birth defect; or requires or prolongs hospitalization. AE=any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that may not have a causal relationship with treatment. Treatment-related=having certain, probable, possible, or missing relationship to study drug. All listed events are treatment emergent, which is defined as nonserious and serious AEs with an onset from Day 1 of the double-blind treatment up to and including 4 days and 30 days respectively, after the last dose date of double-blind study. randomized.

Secondary

MeasureTime frameDescription
Mean Change in Fasting Plasma Glucose (FPG)Baseline and Week 24The mean change in fasting plasma glucose (FPG) from baseline to Week 24 in the double-blind treatment period was assessed. The lack of glycemic control criteria for initiation of rescue medication during Week 12 to Week 24 was having a FPG \> 200 mg/dL (11.1 mmol/L). mg/dL = milligrams per deciliter; mmol/L = millimole per Liter
Mean Change in Mean Daily Glucose (MDG)Baseline and Week 24The mean change in Mean Daily Glucose (MDG) from baseline to Week 24 in the double-blind treatment period was assessed. Prior to the Day 1 visit (between Week -1 and Day 1) and in the week before the Week 24/Study Termination and Rescue or Early Treatment Termination visit, participants performed 7-point finger stick blood glucose monitoring (before and 2 hours after 3 meals per day, and at bedtime) for 3 consecutive days in order to determine their MDG.
Percent of Participants With HbA1c < 7%Week 24Percent of participants achieving a therapeutic glycemic response (defined as HbA1c \< 7.0%) at Week 24 in the double-blind treatment period.

Countries

Canada, Czechia, Germany, Hungary, Poland, Puerto Rico, Romania, South Africa, United Kingdom, United States

Participant flow

Recruitment details

1736 enrolled at 148 study sites in North America, Europe, and South Africa.Lead in period=794. Reasons not entered: 1 AE, 17 WC, 4 lost to FU, 3 NC, 911 SC, 4 ARS, 1 other. Adverse event=-AE, Withdrew consent=WC, Follow-up=FU, poor/non-compliance=NC, No longer met study criteria=SC, Administrative reason by sponsor=ARS.

Pre-assignment details

570 completed lead-in period and were eligible for randomization. 568 randomized. Non-randomized: 1 AE, 27 WC, 3 lost to FU, 7 NC, 159 SC, 8 ARS, 3 other.

Participants by arm

ArmCount
Metformin XR
Participants received Metformin XR and Placebo matching with Metformin XR Metformin Extended Release (XR) 500 mg tablets (500-2000 mg per day) by mouth twice daily (BID) for 24 weeks Placebo matching with Metformin XR 0 mg tablets by mouth twice daily (BID) for 24 weeks.
268
Metformin IR
Participants received Metformin IR and Placebo matching with Metformin IR. Metformin Immediate Release (IR) 500 mg tablets (500-2000 mg per day) by mouth twice daily (BID) for 24 weeks Placebo matching with Metformin IR 0 mg tablets by mouth twice daily (BID) for 24 weeks.
271
Total539

Withdrawals & dropouts

PeriodReasonFG000FG001
Double Blind - Compliant RandomizedAdverse Event61
Double Blind - Compliant RandomizedDeath10
Double Blind - Compliant RandomizedLost to Follow-up310
Double Blind - Compliant RandomizedOther610
Double Blind - Compliant RandomizedPoor/Non-compliance10
Double Blind - Compliant RandomizedSubject Request to Discontinue Treatment20
Double Blind - Compliant RandomizedSubject Withdrew Consent45
Double Blind Treatment - All TreatedRemoved due to site non-compliance1514
Off Treatment Follow-UpOther20
Off Treatment Follow-UpSubject Withdrew Consent10

Baseline characteristics

CharacteristicMetformin XRMetformin IRTotal
Age, Continuous56.8 years
STANDARD_DEVIATION 10.69
55.3 years
STANDARD_DEVIATION 10.34
56.0 years
STANDARD_DEVIATION 10.53
Age, Customized
< 65 years
198 participants226 participants424 participants
Age, Customized
>= 65 years
70 participants45 participants115 participants
Race/Ethnicity, Customized
Asian
17 participants20 participants37 participants
Race/Ethnicity, Customized
Black or African American
22 participants19 participants41 participants
Race/Ethnicity, Customized
Other
2 participants7 participants9 participants
Race/Ethnicity, Customized
White
227 participants225 participants452 participants
Sex: Female, Male
Female
122 Participants122 Participants244 Participants
Sex: Female, Male
Male
146 Participants149 Participants295 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
25 / 28322 / 285
serious
Total, serious adverse events
8 / 28310 / 285

Outcome results

Primary

Adjusted Mean Change From Baseline in HbA1c

Mean change in glycated hemoglobin (HbA1c) from baseline to Week 24 in the double-blind treatment period.

Time frame: Baseline and Week 24

Population: Randomized participants who took at least one dose of double-blind study medication in the treatment group to which they were randomized with non-missing baseline and Week 24 values who were not excluded due to non-compliance.

ArmMeasureValue (MEAN)Dispersion
Metformin XRAdjusted Mean Change From Baseline in HbA1c-0.93 percentStandard Error 0.0485
Metformin IRAdjusted Mean Change From Baseline in HbA1c-0.96 percentStandard Error 0.048
95% CI: [-0.1, 0.17]
Primary

Number of Participants With Death, Serious Adverse Events (SAEs), SAEs Related to Study Therapy, SAEs Leading to Discontinuation, Adverse Events (AEs) Related to Study Therapy, and AEs Leading to Discontinuation

SAE=a medical event that at any dose results in death, persistent or significant disability/incapacity, or drug dependency/abuse; is life-threatening, an important medical event, or a congenital anomaly/birth defect; or requires or prolongs hospitalization. AE=any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that may not have a causal relationship with treatment. Treatment-related=having certain, probable, possible, or missing relationship to study drug. All listed events are treatment emergent, which is defined as nonserious and serious AEs with an onset from Day 1 of the double-blind treatment up to and including 4 days and 30 days respectively, after the last dose date of double-blind study. randomized.

Time frame: Date of first dose (Day 1) up to 30 post last dose of study drug (approx. 28 weeks)

Population: Treated participants; All participants who took at least one dose of double-blind study medication in the treatment group they were randomized to unless participants had never received the double-blind study medication they were randomized. Those participants were included in the treatment group based on the first treatment received.

ArmMeasureGroupValue (NUMBER)
Metformin XRNumber of Participants With Death, Serious Adverse Events (SAEs), SAEs Related to Study Therapy, SAEs Leading to Discontinuation, Adverse Events (AEs) Related to Study Therapy, and AEs Leading to DiscontinuationAEs Leading to Discontinuation10 participants
Metformin XRNumber of Participants With Death, Serious Adverse Events (SAEs), SAEs Related to Study Therapy, SAEs Leading to Discontinuation, Adverse Events (AEs) Related to Study Therapy, and AEs Leading to DiscontinuationSAE8 participants
Metformin XRNumber of Participants With Death, Serious Adverse Events (SAEs), SAEs Related to Study Therapy, SAEs Leading to Discontinuation, Adverse Events (AEs) Related to Study Therapy, and AEs Leading to DiscontinuationAEs Related to Study Therapy30 participants
Metformin XRNumber of Participants With Death, Serious Adverse Events (SAEs), SAEs Related to Study Therapy, SAEs Leading to Discontinuation, Adverse Events (AEs) Related to Study Therapy, and AEs Leading to DiscontinuationSAEs Related to Study Therapy1 participants
Metformin XRNumber of Participants With Death, Serious Adverse Events (SAEs), SAEs Related to Study Therapy, SAEs Leading to Discontinuation, Adverse Events (AEs) Related to Study Therapy, and AEs Leading to DiscontinuationDeath1 participants
Metformin XRNumber of Participants With Death, Serious Adverse Events (SAEs), SAEs Related to Study Therapy, SAEs Leading to Discontinuation, Adverse Events (AEs) Related to Study Therapy, and AEs Leading to DiscontinuationSAEs Leading to Discontinuation0 participants
Metformin IRNumber of Participants With Death, Serious Adverse Events (SAEs), SAEs Related to Study Therapy, SAEs Leading to Discontinuation, Adverse Events (AEs) Related to Study Therapy, and AEs Leading to DiscontinuationDeath0 participants
Metformin IRNumber of Participants With Death, Serious Adverse Events (SAEs), SAEs Related to Study Therapy, SAEs Leading to Discontinuation, Adverse Events (AEs) Related to Study Therapy, and AEs Leading to DiscontinuationAEs Related to Study Therapy25 participants
Metformin IRNumber of Participants With Death, Serious Adverse Events (SAEs), SAEs Related to Study Therapy, SAEs Leading to Discontinuation, Adverse Events (AEs) Related to Study Therapy, and AEs Leading to DiscontinuationAEs Leading to Discontinuation7 participants
Metformin IRNumber of Participants With Death, Serious Adverse Events (SAEs), SAEs Related to Study Therapy, SAEs Leading to Discontinuation, Adverse Events (AEs) Related to Study Therapy, and AEs Leading to DiscontinuationSAEs Leading to Discontinuation1 participants
Metformin IRNumber of Participants With Death, Serious Adverse Events (SAEs), SAEs Related to Study Therapy, SAEs Leading to Discontinuation, Adverse Events (AEs) Related to Study Therapy, and AEs Leading to DiscontinuationSAE10 participants
Metformin IRNumber of Participants With Death, Serious Adverse Events (SAEs), SAEs Related to Study Therapy, SAEs Leading to Discontinuation, Adverse Events (AEs) Related to Study Therapy, and AEs Leading to DiscontinuationSAEs Related to Study Therapy1 participants
Secondary

Mean Change in Fasting Plasma Glucose (FPG)

The mean change in fasting plasma glucose (FPG) from baseline to Week 24 in the double-blind treatment period was assessed. The lack of glycemic control criteria for initiation of rescue medication during Week 12 to Week 24 was having a FPG \> 200 mg/dL (11.1 mmol/L). mg/dL = milligrams per deciliter; mmol/L = millimole per Liter

Time frame: Baseline and Week 24

Population: Randomized participants who took at least one dose of double-blind study medication in the treatment group to which they were randomized with non-missing baseline and Week 24 values and who were not excluded due to non-compliance.

ArmMeasureValue (MEAN)Dispersion
Metformin XRMean Change in Fasting Plasma Glucose (FPG)-21.1 mg/dLStandard Error 1.803
Metformin IRMean Change in Fasting Plasma Glucose (FPG)-20.6 mg/dLStandard Error 1.789
Secondary

Mean Change in Mean Daily Glucose (MDG)

The mean change in Mean Daily Glucose (MDG) from baseline to Week 24 in the double-blind treatment period was assessed. Prior to the Day 1 visit (between Week -1 and Day 1) and in the week before the Week 24/Study Termination and Rescue or Early Treatment Termination visit, participants performed 7-point finger stick blood glucose monitoring (before and 2 hours after 3 meals per day, and at bedtime) for 3 consecutive days in order to determine their MDG.

Time frame: Baseline and Week 24

Population: Randomized participants who took at least one dose of double-blind study medication in the treatment group to which they were randomized with non-missing baseline and Week 24 last observation carried forward (LOCF) results who were not excluded due to non-compliance.

ArmMeasureValue (MEAN)Dispersion
Metformin XRMean Change in Mean Daily Glucose (MDG)-24.68 mg/dLStandard Error 1.5813
Metformin IRMean Change in Mean Daily Glucose (MDG)-27.05 mg/dLStandard Error 1.555
Secondary

Percent of Participants With HbA1c < 7%

Percent of participants achieving a therapeutic glycemic response (defined as HbA1c \< 7.0%) at Week 24 in the double-blind treatment period.

Time frame: Week 24

Population: Randomized participants who took at least one dose of double-blind study medication in the treatment group to which they were randomized with non-missing baseline and Week 24 values who were not excluded due to non-compliance.

ArmMeasureValue (NUMBER)
Metformin XRPercent of Participants With HbA1c < 7%70.9 percent of participants
Metformin IRPercent of Participants With HbA1c < 7%72.0 percent of participants

Source: ClinicalTrials.gov · Data processed: Feb 26, 2026