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Body Weight Effects on Glucophage's Efficacy in Chinese Diagnosed T2DM Patients

The Relationship Between Baseline Body Weight and Glycemic Control Following Metformin Extended-Release Tablets (Glucophage XR) Monotherapy in Chinese Patients With Newly Diagnosed Type 2 Diabetes

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00778622
Enrollment
371
Registered
2008-10-23
Start date
2009-11-30
Completion date
2011-03-31
Last updated
2013-08-23

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 to investigate the effect of the baseline body mass index (BMI) on the response to Glucophage XR monotherapy in glycemic control in Chinese patients with newly diagnosed type 2 diabetes

Interventions

DRUGMetformin XR

Tablets, Oral, 500mg tid, 1500 mg/day, 16 weeks

Sponsors

Bristol-Myers Squibb
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
17 Years to 79 Years
Healthy volunteers
No

Inclusion criteria

* Signed Written Informed Consent * Age≥ 17 and \<80 years, * Newly diagnosed T2DM (defined as T2DM diagnosed within 6 months prior to enrollment) * Oral antidiabetic agents naïve (defined as without receiving any anti-diabetic medication therapy before, or having received anti-diabetic medication ≤ 14 days but not received any antidiabetic medication within the last 1 month prior to enrollment) * HbA1c ≥ 7.0% and ≤10.0%

Exclusion criteria

* Women of child bearing potential * body mass index (BMI)≥35 Kg/m2 or BMI \<18.5 Kg/m2 * Hemoglobin A1c (HbA1c)\>10.0% or \<7.0% * Active liver disease and/or significant abnormal liver function * Acute or chronic metabolic acidosis, including diabetic ketoacidosis, with or without coma * Congestive heart failure defined as New York Heart Association (NYHA) class III or IV and /or left ventricular ejection fraction ≤40% * Significant cardiovascular history with the past 6 months * Severe retinopathy, persistent uncontrolled hypertension (SBP≥180mmHg, or DBP≥105mmHg) * Severe chronic gastrointestinal disease * History of alcohol abuse or illegal drug abuse within the past 12 months * Diagnosed anemia * Creatine kinase ≥3 X ULN * Serum creatinine ≥1.5 mg/dL(133μmol/L) \[males\], ≥1.4 mg/dL(124 μmol/L)\[females\] * Alanine amino transferase (ALT) and/or aspartate amino transferase (AST)\> 1.5 X ULN and/or total bilirubin \> 2 X ULN * Hemoglobin \<12g/dL \[males\], \<11g/dL \[females\] * Allergies and Adverse Drug Reactions * Prohibited Treatments and/or Therapies * Prisoners or subjects who are involuntarily incarcerated * Subjects who are compulsorily detained for treatment of either a psychiatric or physical (eg, infectious disease) illness * Subjects decline to participate

Design outcomes

Primary

MeasureTime frameDescription
Mean Change From Baseline at Week 16 (95% Confidence Interval) in Glycosated Hemoglobin A1c (HbA1c) (Last Observation Carried Forward) - Full Analysis Set (FAS)Baseline to Week 16Baseline for HbA1c is defined as that value obtained at screening visit. HbA1c was measured as a percent (%) of hemoglobin; normal range was 4.7 to 6.4% and values were obtained through a central laboratory. The Last Observation Carried Forward (LOCF) data set includes data recorded at a given visit or, if no observation is recorded at that visit, data carried forward from the previous visit.

Secondary

MeasureTime frameDescription
Mean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Total Cholesterol (TC) - Full Analysis SetBaseline to Week 16For fasting total cholesterol (TC), baseline is defined as Day 1 (first day of treatment). Total cholesterol was measured in millimoles per liter (mmol/L) and obtained through local laboratories.
Mean Change From Baseline at Week 16 (95% Confidence Interval) of Fasting Plasma Glucose (FPG) - Full Analysis SetBaseline to Week 16Baseline was defined as the value obtained at the screening visit. FPG was measured in millimoles/Liter (mmol/L) and obtained through local laboratories.
Mean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Low-density Lipoprotein Cholesterol (LDL-C) - Full Analysis SetBaseline to Week 16Baseline was defined as values obtained on Day 1. Low-density lipoprotein cholesterol (LDL-C) was measured in millimoles per liter (mmol/L) and obtained through local laboratories.
Mean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting High-density Lipoprotein Cholesterol (HDL-C) - Full Analysis SetBaseline to Week 16Baseline was defined as value obtained on Day 1 (first day of treatment). High-density lipoprotein cholesterol (HDL-C) was measured in millimoles per liter (mmol/L) and obtained through local laboratories.
Mean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Triglycerides (TG) - Full Analysis SetBaseline to Week 16Baseline was defined as value obtained on Day 1 (first day of treatment). Triglycerides (TG) were measured in millimoles per liter (mmol/L)and values obtained through local laboratories.
Mean Change From Baseline at Week 16 (95% Confidence Interval) in C-Reactive Protein (CRP) - Full Analysis SetBaseline to Week 16Baseline was defined as value obtained on Day 1 (first day of treatment). C-Reactive Protein (CRP) was measured in milligrams/liter (mg/L) and values were obtained through a central laboratory; normal was less than 5.0 mg/L.
Mean Change From Baseline at Week 16 (95% Confidence Interval) in Plasminogen Activator Inhibitor-1 (PAI-1) - Full Analysis SetBaseline to Week 16Baseline was defined as value obtained on Day 1 (first day of treatment). PAI-1 (activity) was measured in units/milliliter (U/mL)and values obtained through a central laboratory; normal was less than 25.00 U/mL.
Mean Change From Baseline at Week 16 (95% Confidence Interval) in Adiponectin - Full Analysis SetBaseline to Week 16Baseline was defined as value obtained on Day 1 (first day of treatment). Adiponectin was measured in milligrams/liter (mg/L) and values obtained through a central laboratory; normal range was 1.20 to 20.00 mg/L.

Other

MeasureTime frameDescription
Number of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationBaseline to Week 16Baseline defined as value obtained either in screening visit or last value obtained before glucophage XR treatment given on Day 1. Serum chemistries evaluating kidney or liver function: blood urea nitrogen(BUN), serum creatinine (SCr), Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), total bilirubin (BR), uric acid (UA). Abnormal increase in kidney and liver function tests defined as 1.25 - less than, equal to (\<=)2.6 times (x) upper limit of normal (ULN)in ALT, AST, total BR, UA; abnormal increase defined as 1.25 to \<= 5.1 x ULN in BUN. Safety population included participants who enrolled in the study and took at least 1 dose of Glucophage XR.
Number of Participants With Clinically Significant Changes From Baseline at Week 16 in Urinalysis - Safety PopulationBaseline to Week 16Urinalysis included pH and specific gravity. Baseline defined as values obtained at screening visit. Clinically significant: outside the reference range (low/high)and judged to be significant by the investigator: Specific gravity 1.003 - 1.035; ph 5 - 8. Safety population included participants who enrolled in the study and took at least 1 dose of Glucophage XR.
Mean Change From Baseline at Week at Week 16 in ECG Parameter Heart Rate (HR) - Safety PopulationBaseline to Week 16Baseline was defined as ECG obtained at the screening visit. ECG was 12-lead. Heart rate (HR) was measured in beats per minute (beats/min). Safety population included participants who enrolled in the study and took at least 1 dose of Glucophage XR.
Mean Change From Baseline at Week 16 in Diastolic and Systolic Blood Pressure - Safety PopulationBaseline to Week 16Baseline was defined as the value obtained at screening or value obtained on Day 1 before treatment. Diastolic and systolic blood pressure was measured in millimeters of mercury (mm Hg). Safety population included participants who enrolled in the study and took at least 1 dose of Glucophage XR.
Number of Participants Who Had a Normal Electrocardiogram (ECG) at Baseline and an ECG at Week 16 (or Termination Visit) Which Was Considered to be Abnormal With Clinical Significance - Safety PopulationBaseline to Week 16Baseline was defined as ECG obtained at the screening visit. A judgment of clinical significance was at the discretion of the investigator. Safety population included participants who enrolled in the study and took at least 1 dose of Glucophage XR.
Number of Participants With Clinically Significant Changes From Baseline at Week 16 in the Hematology Laboratory Test Profile - Safety PopulationBaseline to Week 16Hematology profile = hematocrit, hemoglobin, red blood cell count (RBC), white blood cell count(WBC), lymphocytes, monocytes, basophils, eosinophils, neutrophils, platelet count. Baseline: value obtained at screening or last value obtained before treatment. LLN=lower limit of normal; ULN=upper limit of normal; preRX=pretreatment. Hemoglobin (g/dL): \>3 g/dL decrease from preRX; hematocrit (%): \<0.75\*preRX; RBC (\*10\^6 c/uL): \<0.75\*preRX; platelet count (\*10\^9 c/uL): \<0.67\*LLN or \>1.5\*ULN, of if preRX\<LLN, use 0.5\*preRX and \<100,000/mm\^3; WBC (\*10\^3 c/uL): \<0.75\*LLN or \>1.25\*ULN, or if preRX \<LLN, use \<0.8\*preRX or \>ULN, or if preRX\>ULN, use \>1.2\*preRX or \<LLN; neutrophils+bands (\*10\^3 c/uL): if value \<1.0\*10\^3 c/uL; eosinophils (\*10\^3 c/uL): if value \>0.750\*10\^3 c/uL; basophils (\*10\^3 c/uL): if value \>400/mm\^3; monocytes (\*10\^3 c/uL): if value \>2000/mm\^3; lymphocytes (\*10\^3 c/uL): if value \<0.750\*10\^3 c/uL or if value \>7.50\*10\^3 c/uL.
Number of Participants With Episodes of Lactic Acidosis or Hypoglycemia From Day 1 to Week 16 - Safety PopulationDay 1 to Week 16Day 1 was first day of treatment. Lactic acidosis defined as elevated blood lactate levels (\>5 mmol/L), decreased blood pH, electrolyte disturbances with an increased anion gap, and increased lactate/pyruvate ratio. Hypoglycemia (low levels of blood glucose) was reported as an adverse event. Safety population included participants who had enrolled in the study and took at least 1 dose of glucophage extended release (glucophage XR). If a subject experienced more than one adverse event, the subject was counted once at the highest severity.

Countries

China

Participant flow

Recruitment details

Started November 2009, Completed March 2011 at Peking University People's Hospital. Participants diagnosed with Type 2 diabetes mellitus 6 months prior to enrollment; were oral antidiabetic agent naive (either having received no antidiabetic agents or received agents 14 days or less, or received none within a month of enrollment in the study.

Pre-assignment details

Participants had glycosated hemoglobin A1c (HbA1c) screening values greater than, equal to 7.0% and less than, equal to 10.0%. Participants were between the ages of 17 and 80 years of age and Chinese Asian. Screening visit was up to 7 days prior to Day 1 (treatment).

Participants by arm

ArmCount
Glucophage XR in Normal Weight Participants
Normal weight was defined as body mass index (BMI) greater than, equal to 18.5 kg/m\^2 and \< 24 kg/m\^2 ). Glucophage XR titrated from Day 1 to Week 4 in increments of 500 mg up to maximum dose of 2000 mg. Participants were dosed for a total of 16 weeks.
125
Glucophage XR in Overweight Participants
Overweight was defined as body mass index (BMI) greater than, equal to 24 kg/m\^2 and less than 28 kg/m\^2. Glucophage XR titrated from Day 1 to Week 4 in increments of 500 mg up to maximum dose of 2000 mg. Participants were dosed for a total of 16 weeks.
122
Glucophage XR in Obese Participants
Obese was defined as body mass index (BMI) greater than, equal to 28 kg/m\^2. Glucophage XR titrated from Day 1 to Week 4 in increments of 500 mg up to maximum dose of 2000 mg. Participants were dosed for a total of 16 weeks.
124
Total371

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event547
Overall Studyimmigration100
Overall StudyLack of Efficacy200
Overall StudyLost to Follow-up332
Overall StudyOther101
Overall StudyProtocol Violation030
Overall StudyWithdrawal by Subject455

Baseline characteristics

CharacteristicGlucophage XR in Normal Weight ParticipantsGlucophage XR in Overweight ParticipantsGlucophage XR in Obese ParticipantsTotal
Age Continuous53.0 years
FULL_RANGE 10.32
51.0 years
FULL_RANGE 9.21
52.5 years
FULL_RANGE 10.97
52.0 years
FULL_RANGE 10.17
Region of Enrollment
China
125 participants122 participants124 participants371 participants
Sex: Female, Male
Female
64 Participants45 Participants52 Participants161 Participants
Sex: Female, Male
Male
61 Participants77 Participants72 Participants210 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
43 / 12547 / 12246 / 124
serious
Total, serious adverse events
1 / 1250 / 1221 / 124

Outcome results

Primary

Mean Change From Baseline at Week 16 (95% Confidence Interval) in Glycosated Hemoglobin A1c (HbA1c) (Last Observation Carried Forward) - Full Analysis Set (FAS)

Baseline for HbA1c is defined as that value obtained at screening visit. HbA1c was measured as a percent (%) of hemoglobin; normal range was 4.7 to 6.4% and values were obtained through a central laboratory. The Last Observation Carried Forward (LOCF) data set includes data recorded at a given visit or, if no observation is recorded at that visit, data carried forward from the previous visit.

Time frame: Baseline to Week 16

Population: Full Analysis Set included participants who were enrolled, took at least 1 study medication and had at least 1 post baseline HbA1c assessment. Baseline data was not carried forward or averaged with on-treatment data to impute missing values for the LOCF data set.

ArmMeasureValue (MEAN)Dispersion
Glucophage XR in Normal Weight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Glycosated Hemoglobin A1c (HbA1c) (Last Observation Carried Forward) - Full Analysis Set (FAS)-1.95 percentage of hemoglobin95% Confidence Interval 0.922
Glucophage XR in Overweight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Glycosated Hemoglobin A1c (HbA1c) (Last Observation Carried Forward) - Full Analysis Set (FAS)-1.79 percentage of hemoglobin95% Confidence Interval 0.941
Glucophage XR in Obese ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Glycosated Hemoglobin A1c (HbA1c) (Last Observation Carried Forward) - Full Analysis Set (FAS)-1.68 percentage of hemoglobin95% Confidence Interval 0.854
Comparison: Standard deviation assumed for changes from baseline in HbA1c maximally was 1.0 across the baseline BMI subgroups. 97 participants in a single subgroup would be sufficient to estimate mean change in HbA1c with precision of 0.20% within the subgroup. Given number of baseline BMI subgroups and no correction for reason of multiplicity was made to the 95% CI within each BMI subgroup, total sample size calculated as 291. Sample size used the method CI for mean for one group in nQuery Advisor v6.0.p-value: 0.0806ANCOVA
p-value: 0.1984t-test, 2 sided
p-value: 0.0232t-test, 2 sided
p-value: 0.3589t-test, 2 sided
Secondary

Mean Change From Baseline at Week 16 (95% Confidence Interval) in Adiponectin - Full Analysis Set

Baseline was defined as value obtained on Day 1 (first day of treatment). Adiponectin was measured in milligrams/liter (mg/L) and values obtained through a central laboratory; normal range was 1.20 to 20.00 mg/L.

Time frame: Baseline to Week 16

Population: Full Analysis Set (FAS) included participants who were enrolled, took at least 1 study medication and had at least 1 post baseline HbA1c assessment. For this outcome measure, 78, 70, and 72 normal, overweight, obese participants, respectively, were missing and were not included in the analysis.

ArmMeasureValue (MEAN)Dispersion
Glucophage XR in Normal Weight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Adiponectin - Full Analysis Set1.742 mg/L95% Confidence Interval 8.6503
Glucophage XR in Overweight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Adiponectin - Full Analysis Set1.102 mg/L95% Confidence Interval 2.2116
Glucophage XR in Obese ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Adiponectin - Full Analysis Set0.050 mg/L95% Confidence Interval 3.5516
Secondary

Mean Change From Baseline at Week 16 (95% Confidence Interval) in C-Reactive Protein (CRP) - Full Analysis Set

Baseline was defined as value obtained on Day 1 (first day of treatment). C-Reactive Protein (CRP) was measured in milligrams/liter (mg/L) and values were obtained through a central laboratory; normal was less than 5.0 mg/L.

Time frame: Baseline to Week 16

Population: Full Analysis Set (FAS) consisted of participants who were enrolled, took at least 1 study medication and had at least 1 post baseline HbA1c assessment. For this outcome measure, 102, 95, and 85 normal, overweight, obese participants, respectively, were missing and were not included in the analysis.

ArmMeasureValue (MEAN)Dispersion
Glucophage XR in Normal Weight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in C-Reactive Protein (CRP) - Full Analysis Set-0.589 mg/L95% Confidence Interval 1.0914
Glucophage XR in Overweight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in C-Reactive Protein (CRP) - Full Analysis Set3.144 mg/L95% Confidence Interval 16.4019
Glucophage XR in Obese ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in C-Reactive Protein (CRP) - Full Analysis Set1.633 mg/L95% Confidence Interval 8.0706
Secondary

Mean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting High-density Lipoprotein Cholesterol (HDL-C) - Full Analysis Set

Baseline was defined as value obtained on Day 1 (first day of treatment). High-density lipoprotein cholesterol (HDL-C) was measured in millimoles per liter (mmol/L) and obtained through local laboratories.

Time frame: Baseline to Week 16

Population: Full Analysis Set (FAS) consisted of participants who were enrolled, took at least 1 study medication and had at least 1 post baseline HbA1c assessment. For this outcome measure, 2, 3, and 8 normal, overweight, obese participants, respectively, were missing and were not included in the analysis.

ArmMeasureValue (MEAN)Dispersion
Glucophage XR in Normal Weight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting High-density Lipoprotein Cholesterol (HDL-C) - Full Analysis Set0.056 mmol/L95% Confidence Interval 0.2016
Glucophage XR in Overweight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting High-density Lipoprotein Cholesterol (HDL-C) - Full Analysis Set0.024 mmol/L95% Confidence Interval 0.3428
Glucophage XR in Obese ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting High-density Lipoprotein Cholesterol (HDL-C) - Full Analysis Set0.032 mmol/L95% Confidence Interval 0.2042
p-value: 0.1431ANCOVA
p-value: 0.4066t-test, 2 sided
p-value: 0.4071t-test, 2 sided
Secondary

Mean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Low-density Lipoprotein Cholesterol (LDL-C) - Full Analysis Set

Baseline was defined as values obtained on Day 1. Low-density lipoprotein cholesterol (LDL-C) was measured in millimoles per liter (mmol/L) and obtained through local laboratories.

Time frame: Baseline to Week 16

Population: Full Analysis Set (FAS) consisted of participants who were enrolled, took at least 1 study medication and had at least 1 post baseline HbA1c assessment. For this outcome measure, 1, 3, and 9 normal, overweight, obese participants, respectively, were missing and were not included in the analysis.

ArmMeasureValue (MEAN)Dispersion
Glucophage XR in Normal Weight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Low-density Lipoprotein Cholesterol (LDL-C) - Full Analysis Set-0.306 mmol/L95% Confidence Interval 0.5746
Glucophage XR in Overweight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Low-density Lipoprotein Cholesterol (LDL-C) - Full Analysis Set-0.143 mmol/L95% Confidence Interval 0.6605
Glucophage XR in Obese ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Low-density Lipoprotein Cholesterol (LDL-C) - Full Analysis Set-0.181 mmol/L95% Confidence Interval 0.6258
p-value: 0.4508ANCOVA
p-value: 0.0526t-test, 2 sided
p-value: 0.1295t-test, 2 sided
Secondary

Mean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Total Cholesterol (TC) - Full Analysis Set

For fasting total cholesterol (TC), baseline is defined as Day 1 (first day of treatment). Total cholesterol was measured in millimoles per liter (mmol/L) and obtained through local laboratories.

Time frame: Baseline to Week 16

Population: Full Analysis Set (FAS) consisted of participants who were enrolled, took at least 1 study medication and had at least 1 post baseline HbA1c assessment. For this outcome measure, 1, 3, and 8 normal, overweight, obese participants, respectively, were missing and were not included in the analysis.

ArmMeasureValue (MEAN)Dispersion
Glucophage XR in Normal Weight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Total Cholesterol (TC) - Full Analysis Set-0.388 mmol/L95% Confidence Interval 0.9164
Glucophage XR in Overweight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Total Cholesterol (TC) - Full Analysis Set-0.048 mmol/L95% Confidence Interval 0.956
Glucophage XR in Obese ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Total Cholesterol (TC) - Full Analysis Set-0.144 mmol/L95% Confidence Interval 0.8188
p-value: 0.0305ANCOVA
p-value: 0.008t-test, 2 sided
p-value: 0.0422t-test, 2 sided
Secondary

Mean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Triglycerides (TG) - Full Analysis Set

Baseline was defined as value obtained on Day 1 (first day of treatment). Triglycerides (TG) were measured in millimoles per liter (mmol/L)and values obtained through local laboratories.

Time frame: Baseline to Week 16

Population: Full Analysis Set (FAS) consisted of participants who were enrolled, took at least 1 study medication and had at least 1 post baseline HbA1c assessment. For this outcome measure, 1, 4, and 8 normal, overweight, obese participants, respectively, were missing and were not included in the analysis.

ArmMeasureValue (MEAN)Dispersion
Glucophage XR in Normal Weight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Triglycerides (TG) - Full Analysis Set-0.172 mmol/L95% Confidence Interval 2.0678
Glucophage XR in Overweight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Triglycerides (TG) - Full Analysis Set0.262 mmol/L95% Confidence Interval 3.3195
Glucophage XR in Obese ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Fasting Triglycerides (TG) - Full Analysis Set-0.041 mmol/L95% Confidence Interval 2.2018
p-value: 0.021ANCOVA
p-value: 0.2507t-test, 2 sided
p-value: 0.6546t-test, 2 sided
Secondary

Mean Change From Baseline at Week 16 (95% Confidence Interval) in Plasminogen Activator Inhibitor-1 (PAI-1) - Full Analysis Set

Baseline was defined as value obtained on Day 1 (first day of treatment). PAI-1 (activity) was measured in units/milliliter (U/mL)and values obtained through a central laboratory; normal was less than 25.00 U/mL.

Time frame: Baseline to Week 16

Population: Full Analysis Set (FAS) population = 111, 111, 112 in normal, overweight, obese participants respectively. For this outcome measure, 84, 79, and 75 normal, overweight, obese participants, respectively, were missing and were not included in the analysis.

ArmMeasureValue (MEAN)Dispersion
Glucophage XR in Normal Weight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Plasminogen Activator Inhibitor-1 (PAI-1) - Full Analysis Set0.465 U/mL95% Confidence Interval 8.5233
Glucophage XR in Overweight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Plasminogen Activator Inhibitor-1 (PAI-1) - Full Analysis Set1.177 U/mL95% Confidence Interval 8.9405
Glucophage XR in Obese ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) in Plasminogen Activator Inhibitor-1 (PAI-1) - Full Analysis Set-1.792 U/mL95% Confidence Interval 7.9231
Secondary

Mean Change From Baseline at Week 16 (95% Confidence Interval) of Fasting Plasma Glucose (FPG) - Full Analysis Set

Baseline was defined as the value obtained at the screening visit. FPG was measured in millimoles/Liter (mmol/L) and obtained through local laboratories.

Time frame: Baseline to Week 16

Population: Full Analysis Set (FAS) included enrolled participants,who took at least 1 dose of drug and had at least 1 post baseline HbA1c assessment. For this outcome measure, 1, 1, and 1 normal, overweight, obese participants, respectively, were missing and were not included in the analysis.

ArmMeasureValue (MEAN)Dispersion
Glucophage XR in Normal Weight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) of Fasting Plasma Glucose (FPG) - Full Analysis Set-1.979 mmol/L95% Confidence Interval 1.7877
Glucophage XR in Overweight ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) of Fasting Plasma Glucose (FPG) - Full Analysis Set-2.171 mmol/L95% Confidence Interval 2.1222
Glucophage XR in Obese ParticipantsMean Change From Baseline at Week 16 (95% Confidence Interval) of Fasting Plasma Glucose (FPG) - Full Analysis Set-2.141 mmol/L95% Confidence Interval 2.0287
p-value: 0.4614ANCOVA
p-value: 0.4696t-test, 2 sided
p-value: 0.5305t-test, 2 sided
p-value: 0.9145t-test, 2 sided
Other Pre-specified

Mean Change From Baseline at Week 16 in Diastolic and Systolic Blood Pressure - Safety Population

Baseline was defined as the value obtained at screening or value obtained on Day 1 before treatment. Diastolic and systolic blood pressure was measured in millimeters of mercury (mm Hg). Safety population included participants who enrolled in the study and took at least 1 dose of Glucophage XR.

Time frame: Baseline to Week 16

ArmMeasureGroupValue (MEAN)Dispersion
Glucophage XR in Normal Weight ParticipantsMean Change From Baseline at Week 16 in Diastolic and Systolic Blood Pressure - Safety PopulationWeek 16 change in diastolic blood pressure-2.2 mm HgStandard Deviation 8.63
Glucophage XR in Normal Weight ParticipantsMean Change From Baseline at Week 16 in Diastolic and Systolic Blood Pressure - Safety PopulationWeek 16 change in systolic blood pressure-4.6 mm HgStandard Deviation 14.21
Glucophage XR in Overweight ParticipantsMean Change From Baseline at Week 16 in Diastolic and Systolic Blood Pressure - Safety PopulationWeek 16 change in diastolic blood pressure-4.1 mm HgStandard Deviation 9.31
Glucophage XR in Overweight ParticipantsMean Change From Baseline at Week 16 in Diastolic and Systolic Blood Pressure - Safety PopulationWeek 16 change in systolic blood pressure-5.5 mm HgStandard Deviation 12.14
Glucophage XR in Obese ParticipantsMean Change From Baseline at Week 16 in Diastolic and Systolic Blood Pressure - Safety PopulationWeek 16 change in diastolic blood pressure-1.4 mm HgStandard Deviation 9.37
Glucophage XR in Obese ParticipantsMean Change From Baseline at Week 16 in Diastolic and Systolic Blood Pressure - Safety PopulationWeek 16 change in systolic blood pressure-1.7 mm HgStandard Deviation 14.55
Other Pre-specified

Mean Change From Baseline at Week at Week 16 in ECG Parameter Heart Rate (HR) - Safety Population

Baseline was defined as ECG obtained at the screening visit. ECG was 12-lead. Heart rate (HR) was measured in beats per minute (beats/min). Safety population included participants who enrolled in the study and took at least 1 dose of Glucophage XR.

Time frame: Baseline to Week 16

Population: Safety population included 125, 122, 124 participants in each arm, respectively. Participants missing from analysis for change at Week 16 for Heart Rate were 17, 18, 20 participants in the normal, overweight, obese arms, respectively.

ArmMeasureValue (MEAN)Dispersion
Glucophage XR in Normal Weight ParticipantsMean Change From Baseline at Week at Week 16 in ECG Parameter Heart Rate (HR) - Safety Population0.4 beats/minStandard Deviation 8.91
Glucophage XR in Overweight ParticipantsMean Change From Baseline at Week at Week 16 in ECG Parameter Heart Rate (HR) - Safety Population1.2 beats/minStandard Deviation 9.56
Glucophage XR in Obese ParticipantsMean Change From Baseline at Week at Week 16 in ECG Parameter Heart Rate (HR) - Safety Population1.1 beats/minStandard Deviation 12.36
Other Pre-specified

Number of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety Population

Baseline defined as value obtained either in screening visit or last value obtained before glucophage XR treatment given on Day 1. Serum chemistries evaluating kidney or liver function: blood urea nitrogen(BUN), serum creatinine (SCr), Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), total bilirubin (BR), uric acid (UA). Abnormal increase in kidney and liver function tests defined as 1.25 - less than, equal to (\<=)2.6 times (x) upper limit of normal (ULN)in ALT, AST, total BR, UA; abnormal increase defined as 1.25 to \<= 5.1 x ULN in BUN. Safety population included participants who enrolled in the study and took at least 1 dose of Glucophage XR.

Time frame: Baseline to Week 16

Population: Number of participants (normal, overweight, obese, respectively) who were missing values and were not included in the Week 16 analysis for the following serum chemistry tests: ALT = 14, 11, 13; AST = 14, 11, 13; total BR = 14, 11, 13; creatinine = 14, 12, 13; BUN = 14, 12, 13; UA = 14, 12, 13.

ArmMeasureGroupValue (NUMBER)
Glucophage XR in Normal Weight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 UA 1.25 to <=2.6xULN3 participants
Glucophage XR in Normal Weight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 ALT 1.25 to <= 2.6xULN2 participants
Glucophage XR in Normal Weight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 UA > 2.6 x ULN0 participants
Glucophage XR in Normal Weight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 AST > 2.6 x ULN0 participants
Glucophage XR in Normal Weight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 SCr 1.25 to <=2.6xULN0 participants
Glucophage XR in Normal Weight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 SCr > 1.25 x ULN0 participants
Glucophage XR in Normal Weight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 ALT > 2.6 x ULN0 participants
Glucophage XR in Normal Weight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 Total BR 1.25 to <=2.6xULN3 participants
Glucophage XR in Normal Weight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 Total BR > 2.6 x ULN0 participants
Glucophage XR in Normal Weight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 AST 1.25 to <= 2.6xULN0 participants
Glucophage XR in Normal Weight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 BUN1.25 to <=5.1xULN0 participants
Glucophage XR in Normal Weight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 BUN > 5.1 x ULN0 participants
Glucophage XR in Overweight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 AST 1.25 to <= 2.6xULN5 participants
Glucophage XR in Overweight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 UA 1.25 to <=2.6xULN5 participants
Glucophage XR in Overweight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 BUN > 5.1 x ULN0 participants
Glucophage XR in Overweight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 Total BR 1.25 to <=2.6xULN2 participants
Glucophage XR in Overweight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 UA > 2.6 x ULN0 participants
Glucophage XR in Overweight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 ALT 1.25 to <= 2.6xULN11 participants
Glucophage XR in Overweight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 BUN1.25 to <=5.1xULN1 participants
Glucophage XR in Overweight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 SCr 1.25 to <=2.6xULN0 participants
Glucophage XR in Overweight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 AST > 2.6 x ULN0 participants
Glucophage XR in Overweight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 Total BR > 2.6 x ULN0 participants
Glucophage XR in Overweight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 SCr > 1.25 x ULN0 participants
Glucophage XR in Overweight ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 ALT > 2.6 x ULN0 participants
Glucophage XR in Obese ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 SCr > 1.25 x ULN0 participants
Glucophage XR in Obese ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 BUN1.25 to <=5.1xULN0 participants
Glucophage XR in Obese ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 ALT 1.25 to <= 2.6xULN9 participants
Glucophage XR in Obese ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 ALT > 2.6 x ULN0 participants
Glucophage XR in Obese ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 AST 1.25 to <= 2.6xULN4 participants
Glucophage XR in Obese ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 AST > 2.6 x ULN0 participants
Glucophage XR in Obese ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 Total BR 1.25 to <=2.6xULN1 participants
Glucophage XR in Obese ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 Total BR > 2.6 x ULN0 participants
Glucophage XR in Obese ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 BUN > 5.1 x ULN0 participants
Glucophage XR in Obese ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 UA 1.25 to <=2.6xULN7 participants
Glucophage XR in Obese ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 UA > 2.6 x ULN0 participants
Glucophage XR in Obese ParticipantsNumber of Participants Who Had Abnormal Increase From Baseline at Week 16 in Kidney or Liver Function Serum Chemistry Values - Safety PopulationNumber with Week 16 SCr 1.25 to <=2.6xULN0 participants
Other Pre-specified

Number of Participants Who Had a Normal Electrocardiogram (ECG) at Baseline and an ECG at Week 16 (or Termination Visit) Which Was Considered to be Abnormal With Clinical Significance - Safety Population

Baseline was defined as ECG obtained at the screening visit. A judgment of clinical significance was at the discretion of the investigator. Safety population included participants who enrolled in the study and took at least 1 dose of Glucophage XR.

Time frame: Baseline to Week 16

Population: number of participants with a normal ECG at baseline for normal weight, overweight, and obese arms were 71, 62, 65, respectively.

ArmMeasureValue (NUMBER)
Glucophage XR in Normal Weight ParticipantsNumber of Participants Who Had a Normal Electrocardiogram (ECG) at Baseline and an ECG at Week 16 (or Termination Visit) Which Was Considered to be Abnormal With Clinical Significance - Safety Population0 participants
Glucophage XR in Overweight ParticipantsNumber of Participants Who Had a Normal Electrocardiogram (ECG) at Baseline and an ECG at Week 16 (or Termination Visit) Which Was Considered to be Abnormal With Clinical Significance - Safety Population1 participants
Glucophage XR in Obese ParticipantsNumber of Participants Who Had a Normal Electrocardiogram (ECG) at Baseline and an ECG at Week 16 (or Termination Visit) Which Was Considered to be Abnormal With Clinical Significance - Safety Population3 participants
Other Pre-specified

Number of Participants With Clinically Significant Changes From Baseline at Week 16 in the Hematology Laboratory Test Profile - Safety Population

Hematology profile = hematocrit, hemoglobin, red blood cell count (RBC), white blood cell count(WBC), lymphocytes, monocytes, basophils, eosinophils, neutrophils, platelet count. Baseline: value obtained at screening or last value obtained before treatment. LLN=lower limit of normal; ULN=upper limit of normal; preRX=pretreatment. Hemoglobin (g/dL): \>3 g/dL decrease from preRX; hematocrit (%): \<0.75\*preRX; RBC (\*10\^6 c/uL): \<0.75\*preRX; platelet count (\*10\^9 c/uL): \<0.67\*LLN or \>1.5\*ULN, of if preRX\<LLN, use 0.5\*preRX and \<100,000/mm\^3; WBC (\*10\^3 c/uL): \<0.75\*LLN or \>1.25\*ULN, or if preRX \<LLN, use \<0.8\*preRX or \>ULN, or if preRX\>ULN, use \>1.2\*preRX or \<LLN; neutrophils+bands (\*10\^3 c/uL): if value \<1.0\*10\^3 c/uL; eosinophils (\*10\^3 c/uL): if value \>0.750\*10\^3 c/uL; basophils (\*10\^3 c/uL): if value \>400/mm\^3; monocytes (\*10\^3 c/uL): if value \>2000/mm\^3; lymphocytes (\*10\^3 c/uL): if value \<0.750\*10\^3 c/uL or if value \>7.50\*10\^3 c/uL.

Time frame: Baseline to Week 16

Population: Safety population included participants who enrolled in the study and took at least 1 dose of Glucophage XR.

ArmMeasureValue (NUMBER)
Glucophage XR in Normal Weight ParticipantsNumber of Participants With Clinically Significant Changes From Baseline at Week 16 in the Hematology Laboratory Test Profile - Safety Population0 participants
Glucophage XR in Overweight ParticipantsNumber of Participants With Clinically Significant Changes From Baseline at Week 16 in the Hematology Laboratory Test Profile - Safety Population0 participants
Glucophage XR in Obese ParticipantsNumber of Participants With Clinically Significant Changes From Baseline at Week 16 in the Hematology Laboratory Test Profile - Safety Population0 participants
Other Pre-specified

Number of Participants With Clinically Significant Changes From Baseline at Week 16 in Urinalysis - Safety Population

Urinalysis included pH and specific gravity. Baseline defined as values obtained at screening visit. Clinically significant: outside the reference range (low/high)and judged to be significant by the investigator: Specific gravity 1.003 - 1.035; ph 5 - 8. Safety population included participants who enrolled in the study and took at least 1 dose of Glucophage XR.

Time frame: Baseline to Week 16

ArmMeasureValue (NUMBER)
Glucophage XR in Normal Weight ParticipantsNumber of Participants With Clinically Significant Changes From Baseline at Week 16 in Urinalysis - Safety Population0 participants
Glucophage XR in Overweight ParticipantsNumber of Participants With Clinically Significant Changes From Baseline at Week 16 in Urinalysis - Safety Population0 participants
Glucophage XR in Obese ParticipantsNumber of Participants With Clinically Significant Changes From Baseline at Week 16 in Urinalysis - Safety Population0 participants
Other Pre-specified

Number of Participants With Episodes of Lactic Acidosis or Hypoglycemia From Day 1 to Week 16 - Safety Population

Day 1 was first day of treatment. Lactic acidosis defined as elevated blood lactate levels (\>5 mmol/L), decreased blood pH, electrolyte disturbances with an increased anion gap, and increased lactate/pyruvate ratio. Hypoglycemia (low levels of blood glucose) was reported as an adverse event. Safety population included participants who had enrolled in the study and took at least 1 dose of glucophage extended release (glucophage XR). If a subject experienced more than one adverse event, the subject was counted once at the highest severity.

Time frame: Day 1 to Week 16

Population: All participants enrolled in the study and who received at least 1 dose of Glucophage XR.

ArmMeasureGroupValue (NUMBER)
Glucophage XR in Normal Weight ParticipantsNumber of Participants With Episodes of Lactic Acidosis or Hypoglycemia From Day 1 to Week 16 - Safety PopulationLactic Acidosis0 participants
Glucophage XR in Normal Weight ParticipantsNumber of Participants With Episodes of Lactic Acidosis or Hypoglycemia From Day 1 to Week 16 - Safety PopulationHypoglycemia1 participants
Glucophage XR in Overweight ParticipantsNumber of Participants With Episodes of Lactic Acidosis or Hypoglycemia From Day 1 to Week 16 - Safety PopulationLactic Acidosis0 participants
Glucophage XR in Overweight ParticipantsNumber of Participants With Episodes of Lactic Acidosis or Hypoglycemia From Day 1 to Week 16 - Safety PopulationHypoglycemia0 participants
Glucophage XR in Obese ParticipantsNumber of Participants With Episodes of Lactic Acidosis or Hypoglycemia From Day 1 to Week 16 - Safety PopulationLactic Acidosis0 participants
Glucophage XR in Obese ParticipantsNumber of Participants With Episodes of Lactic Acidosis or Hypoglycemia From Day 1 to Week 16 - Safety PopulationHypoglycemia0 participants

Source: ClinicalTrials.gov · Data processed: Mar 24, 2026