Type 2 Diabetes Mellitus
Conditions
Keywords
Drug Therapy
Brief summary
To investigate the safety and efficacy of long-term treatment with pioglitazone (Actos tablets) in combination with biguanides (for 12 months after the start of pioglitazone tablets treatment) in patients with type 2 diabetes mellitus.
Detailed description
This is a special drug use surveillance with an observation period of 12 months designed to investigate the safety and efficacy of pioglitazone (Actos) in the routine clinical setting in patients with type 2 diabetes mellitus who responded inadequately to treatment with biguanides in addition to diet therapy and exercise therapy (planned sample size, 1000). The usual adult dosage is 15 to 30 mg of pioglitazone administered orally once daily before or after breakfast. Dose adjustment will be made according to gender, age, and symptoms with an upper limit of 45 mg.
Interventions
Pioglitazone Tablets
Sponsors
Study design
Eligibility
Inclusion criteria
1. Patients with type 2 diabetes mellitus who responded inadequately to treatment with biguanides in addition to diet therapy and exercise therapy 2. Patients with available HbA1c data within the 1 month prior to the start of Actos Tablets treatment 3. Patients likely to be available for a 12-month observation after the start of Actos Tablets treatment
Exclusion criteria
1. Patients who have received Actos Tablets within the past 3 months. 2. Patients who started treatment with biguanides and Actos Tablets simultaneously 3. Patients who discontinued biguanides and switched to Actos Tablets treatment. 4. Patients who received additional biguanides after the start of Actos Tablets treatment 5. Patients with contraindications to Actos Tablets treatment
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Number of Participants Reporting One or More Adverse Drug Reactions | Baseline up to 12 months | Adverse drug reactions are defined as adverse events (AEs) which are in the investigator's opinion of causal relationship to the study treatment. AEs are defined as any unfavorable and unintended signs, symptoms or diseases temporally associated with the use of a medicinal product reported from the first dose of study drug to the last dose of study drug. |
| Number of Participants Reporting One or More Serious Adverse Drug Reactions | Baseline up to 12 months | Serious adverse drug reactions are defined as serious adverse events (SAEs) which are in the investigator's opinion of causal relationship to the study treatment. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change From Baseline in Body Weight | Baseline, Months 3, 6, 9, 12 and final assessment (up to Month 12) | Change relative to baseline in participant's weight measured at 3 months, 6 months, 9 months, 12 months or final visit (last visit for a participant in the study, up to Month 12). |
| Change From Baseline in Glycosylated Hemoglobin (HbA1c) | Baseline, Months 3, 6, 9, 12 and final assessment (up to Month 12) | The change in the value of glycosylated hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at 3 months, 6 months, 9 months, 12 months or final visit (last visit for a participant in the study, up to Month 12) relative to baseline. |
| Change From Baseline Homeostasis Model Assessment of Insulin Resistance (HOMA-IR) | Baseline, Months 3, 6, 9, 12 and final assessment (up to Month 12) | The change between homeostasis model assessment of insulin resistance collected at 3 months, 6 months, 9 months, 12 months or final visit (last visit for a participant in the study, up to Month 12) relative to baseline. Homeostasis Model assessment of insulin resistance Measures insulin resistance, calculated by insulin times glucose, divided by a constant (22.5). A higher score indicates higher insulin resistance. |
| Change From Baseline in Immunoreactive Insulin (IRI) | Baseline, Months 3, 6, 9, 12 and final assessment (up to Month 12) | The change in the value of IRI (portion of insulin in blood measured by immunochemical methods for the hormone; presumed to represent the free \[unbound\] and biologically active fraction of total blood insulin) collected at 3 months, 6 months, 9 months, 12 months or final visit (last visit for a participant in the study, up to Month 12) relative to baseline. |
| Change From Baseline in Fasting Blood Glucose | Baseline, Months 3, 6, 9, 12 and final assessment (up to Month 12) | The change between the fasting blood glucose value collected at 3 months, 6 months, 9 months, 12 months or final visit (last visit for a participant in the study, up to Month 12) relative to baseline. |
Participant flow
Recruitment details
Participants took part in the study at 152 investigative sites in Japan from 23 February 2009 to 31 January 2012.
Pre-assignment details
Participants with a historical diagnosis of type 2 diabetes mellitus who failed to respond adequately to treatment with biguanides were enrolled to receive pioglitazone 15 milligram (mg) - 30 mg for up to 12 months.
Participants by arm
| Arm | Count |
|---|---|
| Pioglitazone Pioglitazone 15 mg - 30 mg, tablet, orally, once daily for up to 12 months in participants based upon the disease severity. | 880 |
| Total | 880 |
Withdrawals & dropouts
| Period | Reason | FG000 |
|---|---|---|
| Overall Study | Case report forms uncollected | 9 |
| Overall Study | Investigator's transfer | 4 |
| Overall Study | Patient did not visit the study site | 5 |
| Overall Study | Treatment started after contract period | 1 |
Baseline characteristics
| Characteristic | Pioglitazone |
|---|---|
| Age, Continuous | 58.9 years STANDARD_DEVIATION 11.69 |
| Body Mass Index < 18.5 kilogram per square meter (kg/m^2) | 14 participants |
| Body Mass Index >=18.5 to <25 kg/m^2 | 382 participants |
| Body Mass Index >=25 to <30 kg/m^2 | 346 participants |
| Body Mass Index >=30 kg/m^2 | 124 participants |
| Body Mass Index Unknown | 14 participants |
| Breakdown of Complications Alcoholic liver injury | 11 participants |
| Breakdown of Complications Cerebrovascular disease | 38 participants |
| Breakdown of Complications Diabetic nephropathy | 75 participants |
| Breakdown of Complications Diabetic neuropathy | 58 participants |
| Breakdown of Complications Diabetic retinopathy | 63 participants |
| Breakdown of Complications Dyslipidaemia | 217 participants |
| Breakdown of Complications Heart disease | 85 participants |
| Breakdown of Complications Hepatic steatosis | 58 participants |
| Breakdown of Complications Hypertension | 203 participants |
| Breakdown of Complications Liver disease (all types of liver disease) | 79 participants |
| Breakdown of Complications Malignant tumor | 8 participants |
| Breakdown of Complications Other | 234 participants |
| Breakdown of Complications Other liver disease | 19 participants |
| Breakdown of Complications Renal disease (including diabetic nephropathy) | 85 participants |
| Breakdown of Complications Renal disease (other than diabetic nephropathy) | 14 participants |
| Breakdown of Complications Viral liver injury | 1 participants |
| Breakdown of Medical History Cerebrovascular disease | 21 participants |
| Breakdown of Medical History Heart disease | 20 participants |
| Breakdown of Medical History Liver disease | 6 participants |
| Breakdown of Medical History Malignant tumor | 23 participants |
| Breakdown of Medical History Other | 154 participants |
| Breakdown of Medical History Renal disease | 4 participants |
| Details Regarding Predisposition to Hypersensitivity Drug | 12 participants |
| Details Regarding Predisposition to Hypersensitivity Food | 5 participants |
| Details Regarding Predisposition to Hypersensitivity Other | 7 participants |
| Drinking Habits Current drinker | 346 participants |
| Drinking Habits Former drinker | 46 participants |
| Drinking Habits None | 474 participants |
| Drinking Habits Unknown | 14 participants |
| Medical Complications Had no presence of medical complications | 100 participants |
| Medical Complications Had presence of medical complications | 780 participants |
| Medical History Had no presence of medical history | 672 participants |
| Medical History Had presence of medical history | 206 participants |
| Medical History Unknown | 2 participants |
| Predisposition to Hypersensitivity Had no predisposition to hypersensitivity | 856 participants |
| Predisposition to Hypersensitivity Had predisposition to hypersensitivity | 24 participants |
| Pregnancy status Not pregnant | 334 participants |
| Pregnancy status Pregnant | 0 participants |
| Sex: Female, Male Female | 334 Participants |
| Sex: Female, Male Male | 546 Participants |
| Smoking Habits Current smoker | 203 participants |
| Smoking Habits Former smoker | 145 participants |
| Smoking Habits None | 520 participants |
| Smoking Habits Unknown | 12 participants |
| Time from diagnosis of type 2 diabetes >=10 years | 354 participants |
| Time from diagnosis of type 2 diabetes >=5 to <10 years | 239 participants |
| Time from diagnosis of type 2 diabetes Greater than equal to (>=) 1 to <5 years | 194 participants |
| Time from diagnosis of type 2 diabetes Less than (<) 1 years | 36 participants |
| Time from diagnosis of type 2 diabetes Unknown | 57 participants |
| Weight < 40 kilogram (kg) | 3 participants |
| Weight >=40 to <50 kg | 54 participants |
| Weight >=50 to <60 kg | 163 participants |
| Weight >=60 to <70 kg | 268 participants |
| Weight >=70 kg | 384 participants |
| Weight Unknown | 8 participants |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | — / — |
| other Total, other adverse events | 36 / 880 |
| serious Total, serious adverse events | 12 / 880 |
Outcome results
Number of Participants Reporting One or More Adverse Drug Reactions
Adverse drug reactions are defined as adverse events (AEs) which are in the investigator's opinion of causal relationship to the study treatment. AEs are defined as any unfavorable and unintended signs, symptoms or diseases temporally associated with the use of a medicinal product reported from the first dose of study drug to the last dose of study drug.
Time frame: Baseline up to 12 months
Population: The safety analysis set was defined as all participants who were enrolled and completed the study.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Pioglitazone | Number of Participants Reporting One or More Adverse Drug Reactions | 79 participants |
Number of Participants Reporting One or More Serious Adverse Drug Reactions
Serious adverse drug reactions are defined as serious adverse events (SAEs) which are in the investigator's opinion of causal relationship to the study treatment. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.
Time frame: Baseline up to 12 months
Population: The safety analysis set was defined as all participants who were enrolled and completed the study.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Pioglitazone | Number of Participants Reporting One or More Serious Adverse Drug Reactions | 1 participants |
Change From Baseline Homeostasis Model Assessment of Insulin Resistance (HOMA-IR)
The change between homeostasis model assessment of insulin resistance collected at 3 months, 6 months, 9 months, 12 months or final visit (last visit for a participant in the study, up to Month 12) relative to baseline. Homeostasis Model assessment of insulin resistance Measures insulin resistance, calculated by insulin times glucose, divided by a constant (22.5). A higher score indicates higher insulin resistance.
Time frame: Baseline, Months 3, 6, 9, 12 and final assessment (up to Month 12)
Population: The efficacy assessment population was defined as participants who completed the study and had efficacy data at baseline and post-baseline time points available.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Pioglitazone | Change From Baseline Homeostasis Model Assessment of Insulin Resistance (HOMA-IR) | Baseline (n = 43) | 3.92 HOMA-IR score | Standard Deviation 2.751 |
| Pioglitazone | Change From Baseline Homeostasis Model Assessment of Insulin Resistance (HOMA-IR) | Change at Month 3 (n = 28) | -0.85 HOMA-IR score | Standard Deviation 2.173 |
| Pioglitazone | Change From Baseline Homeostasis Model Assessment of Insulin Resistance (HOMA-IR) | Change at Month 6 (n = 31) | -1.41 HOMA-IR score | Standard Deviation 1.936 |
| Pioglitazone | Change From Baseline Homeostasis Model Assessment of Insulin Resistance (HOMA-IR) | Change at Month 9 (n = 20) | -1.49 HOMA-IR score | Standard Deviation 2.779 |
| Pioglitazone | Change From Baseline Homeostasis Model Assessment of Insulin Resistance (HOMA-IR) | Change at Month 12 (n = 26) | -1.26 HOMA-IR score | Standard Deviation 1.974 |
| Pioglitazone | Change From Baseline Homeostasis Model Assessment of Insulin Resistance (HOMA-IR) | Change at Final Assessment (n = 43) | -0.75 HOMA-IR score | Standard Deviation 2.098 |
Change From Baseline in Body Weight
Change relative to baseline in participant's weight measured at 3 months, 6 months, 9 months, 12 months or final visit (last visit for a participant in the study, up to Month 12).
Time frame: Baseline, Months 3, 6, 9, 12 and final assessment (up to Month 12)
Population: The efficacy assessment population was defined as participants who completed the study and had efficacy data at baseline and post-baseline time points available.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Pioglitazone | Change From Baseline in Body Weight | Baseline (n = 788) | 68.971 kg | Standard Deviation 14.1768 |
| Pioglitazone | Change From Baseline in Body Weight | Change at Month 3 (n = 733) | 0.667 kg | Standard Deviation 1.9398 |
| Pioglitazone | Change From Baseline in Body Weight | Change at Month 6 (n = 660) | 1.180 kg | Standard Deviation 2.4136 |
| Pioglitazone | Change From Baseline in Body Weight | Change at Month 9 (n = 587) | 1.440 kg | Standard Deviation 2.6187 |
| Pioglitazone | Change From Baseline in Body Weight | Change at Month 12 (n = 582) | 1.407 kg | Standard Deviation 2.7272 |
| Pioglitazone | Change From Baseline in Body Weight | Change at Final Assessment (n = 788) | 1.465 kg | Standard Deviation 2.8322 |
Change From Baseline in Fasting Blood Glucose
The change between the fasting blood glucose value collected at 3 months, 6 months, 9 months, 12 months or final visit (last visit for a participant in the study, up to Month 12) relative to baseline.
Time frame: Baseline, Months 3, 6, 9, 12 and final assessment (up to Month 12)
Population: The efficacy assessment population was defined as participants who completed the study and had efficacy data at baseline and post-baseline time points available.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Pioglitazone | Change From Baseline in Fasting Blood Glucose | Change at Month 12 (n = 146) | -28.4 milligram per deciliter (mg/dL) | Standard Deviation 48.44 |
| Pioglitazone | Change From Baseline in Fasting Blood Glucose | Baseline (n = 210) | 174.1 milligram per deciliter (mg/dL) | Standard Deviation 62.02 |
| Pioglitazone | Change From Baseline in Fasting Blood Glucose | Change at Month 3 (n = 179) | -27.4 milligram per deciliter (mg/dL) | Standard Deviation 59.41 |
| Pioglitazone | Change From Baseline in Fasting Blood Glucose | Change at Month 6 (n = 152) | -27.9 milligram per deciliter (mg/dL) | Standard Deviation 52.29 |
| Pioglitazone | Change From Baseline in Fasting Blood Glucose | Change at Month 9 (n = 143) | -20.8 milligram per deciliter (mg/dL) | Standard Deviation 65.77 |
| Pioglitazone | Change From Baseline in Fasting Blood Glucose | Change at Final Assessment (n = 210) | -28.1 milligram per deciliter (mg/dL) | Standard Deviation 51.31 |
Change From Baseline in Glycosylated Hemoglobin (HbA1c)
The change in the value of glycosylated hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at 3 months, 6 months, 9 months, 12 months or final visit (last visit for a participant in the study, up to Month 12) relative to baseline.
Time frame: Baseline, Months 3, 6, 9, 12 and final assessment (up to Month 12)
Population: The efficacy assessment population was defined as participants who completed the study and had efficacy data at baseline and post-baseline time points available.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Pioglitazone | Change From Baseline in Glycosylated Hemoglobin (HbA1c) | Baseline (n = 824) | 8.34 percentage of glycosylated hemoglobin | Standard Deviation 1.217 |
| Pioglitazone | Change From Baseline in Glycosylated Hemoglobin (HbA1c) | Change at Month 3 (n = 802) | -0.71 percentage of glycosylated hemoglobin | Standard Deviation 0.943 |
| Pioglitazone | Change From Baseline in Glycosylated Hemoglobin (HbA1c) | Change at Month 6 (n = 721) | -0.79 percentage of glycosylated hemoglobin | Standard Deviation 1.064 |
| Pioglitazone | Change From Baseline in Glycosylated Hemoglobin (HbA1c) | Change at Month 9 (n = 650) | -0.85 percentage of glycosylated hemoglobin | Standard Deviation 1.066 |
| Pioglitazone | Change From Baseline in Glycosylated Hemoglobin (HbA1c) | Change at Month 12 (n = 624) | -0.91 percentage of glycosylated hemoglobin | Standard Deviation 1.08 |
| Pioglitazone | Change From Baseline in Glycosylated Hemoglobin (HbA1c) | Change at Final Assessment (n = 824) | 0.85 percentage of glycosylated hemoglobin | Standard Deviation 1.12 |
Change From Baseline in Immunoreactive Insulin (IRI)
The change in the value of IRI (portion of insulin in blood measured by immunochemical methods for the hormone; presumed to represent the free \[unbound\] and biologically active fraction of total blood insulin) collected at 3 months, 6 months, 9 months, 12 months or final visit (last visit for a participant in the study, up to Month 12) relative to baseline.
Time frame: Baseline, Months 3, 6, 9, 12 and final assessment (up to Month 12)
Population: The efficacy assessment population was defined as participants who completed the study and had efficacy data at baseline and post-baseline time points available.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Pioglitazone | Change From Baseline in Immunoreactive Insulin (IRI) | Baseline (n = 44) | 10.320 micro units per milliliter (mcU/mL) | Standard Deviation 6.562 |
| Pioglitazone | Change From Baseline in Immunoreactive Insulin (IRI) | Change at Month 3 (n = 29) | -1.390 micro units per milliliter (mcU/mL) | Standard Deviation 4.1813 |
| Pioglitazone | Change From Baseline in Immunoreactive Insulin (IRI) | Change at Month 6 (n = 32) | -2.438 micro units per milliliter (mcU/mL) | Standard Deviation 3.7622 |
| Pioglitazone | Change From Baseline in Immunoreactive Insulin (IRI) | Change at Month 9 (n = 20) | -2.970 micro units per milliliter (mcU/mL) | Standard Deviation 5.5698 |
| Pioglitazone | Change From Baseline in Immunoreactive Insulin (IRI) | Change at Month 12 (n = 27) | -1.774 micro units per milliliter (mcU/mL) | Standard Deviation 4.678 |
| Pioglitazone | Change From Baseline in Immunoreactive Insulin (IRI) | Change at Final Assessment (n = 44) | -1.077 micro units per milliliter (mcU/mL) | Standard Deviation 4.7957 |