Type 1 Diabetes Mellitus
Conditions
Brief summary
To obtain safety and tolerability information in patients with type 1 diabetes where Dapagliflozin is added on to Insulin (for 14 days)
Detailed description
Study Classification : Safety, Pharmacokinetics and Pharmacodynamics
Interventions
Tablets, Oral, 1 mg, Once daily, 14 days
Tablets, Oral, 0 mg, Once daily, 14 days
Sponsors
Study design
Eligibility
Inclusion criteria
* Type 1 diabetes with central lab Glycosylated hemoglobin (A1C) ≥ 7.0% and ≤ 10.0% * Insulin use for at least 12 months and initiation immediately after diagnosis of diabetes * Method of Insulin administration \[multiple daily injections (MDI) or continuous subcutaneous Insulin infusion (CSII)\] stable ≥ 3 months * Stable basal Insulin dose ≥ 2 weeks * Ages 18 to 65 years * Central laboratory C-peptide value of \< 0.7 ng/mL * Body mass index (BMI) 18.5 to 35.0 kg/m2
Exclusion criteria
* History of type 2 diabetes mellitus (T2DM), maturity onset diabetes of young (MODY), pancreatic surgery or chronic pancreatitis * Oral hypoglycemic agents * History of diabetes ketoacidosis (DKA) within 24 weeks * History of hospital admission for glycemic control within 6 months * Frequent episodes of hypoglycemia (2 unexplained within 3 months) or hypoglycemic unawareness * Aspartate aminotransferase (AST), Alanine aminotransferase (ALT) or Serum total bilirubin \> 2X Upper limit of normal (ULN) * Abnormal Free T4 \[if screening Thyroid Stimulating Hormone (TSH) abnormal\] * Estimated glomerular filtration rate (eGFR) Modification of Diet in Renal Disease (MDRD) formula ≤ 60 mL/min/1.73m2 * Cardiovascular (CV)/Vascular Diseases within 6 months
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Mean Change From Baseline in 7-Point Glucose Monitoring (7-PGM) at Day 7 | From Baseline to Day 7 | 7-PGM was measured as milligrams per deciliter (mg/dL) by a central laboratory. Baseline was defined as the assessment on Day -1, prior to the start date and time of the first dose of the double-blind study medication. 7-PGM included the average of all available glucose values before and 2-hour (hr) after each meal (breakfast, lunch, dinner) as well as bedtime. Measurements were on Day -1, and Day 7 in the double-blind period. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Dapagliflozin Pharmacokinetic Parameters on Day 7 - Time of Maximum Observed Plasma Concentration (Tmax) | Day 7 (0 hr to 24 hr post dose) | Serial blood samples were collected predose 0 hr, and hr 0.5, 1, 2, 3, 4, 6, 8, 12, and 24 in the double-blind period. Individual subject PK parameter values were derived by non-compartmental methods by a validated PK analysis program, Kinetica®. Actual sampling times were used for PK calculations and nominal times were used for generation of mean plasma concentration-time plots and summaries. Pre-dose sample collection times were changed from negative numbers (based on elapsed time to dose) to zero for the purpose of calculating PK parameters. The Tmax was recorded directly from experimental observations. |
| Dapagliflozin Pharmacokinetic Parameters on Day 7 - Area Under the Concentration-Time Curve in One Dosing Interval (AUC[TAU]) | Day 7 (0 hr to 24 hr post dose) | Serial blood samples were collected predose 0 hr, and hr 0.5, 1, 2, 3, 4, 6, 8, 12, and 24 in the double-blind period. Individual subject PK parameter values were derived by non-compartmental methods by a validated PK analysis program, Kinetica®. Actual sampling times were used for PK calculations and nominal times were used for generation of mean plasma concentration-time plots and summaries. Pre-dose sample collection times were changed from negative numbers (based on elapsed time to dose) to zero for the purpose of calculating PK parameters. The concentrations below the lower limit of quantitation (\<LLOQ) were set as missing for the calculation of PK parameters as well as summary statistics. AUC\[TAU\], was calculated by a mixture of logand linear-trapezoidal summations. |
| Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Maximum Observed Plasma Concentration (Cmax) | Day 7 (0 hr to 24 hr post dose) | Serial blood samples were collected predose 0 hr, and hr 0.5, 1, 2, 3, 4, 6, 8, 12, and 24 in the double-blind period. Individual subject PK parameter values were derived by non-compartmental methods by a validated PK analysis program, Kinetica®. Actual sampling times were used for PK calculations and nominal times were used for generation of mean plasma concentration-time plots and summaries. Pre-dose sample collection times were changed from negative numbers (based on elapsed time to dose) to zero for the purpose of calculating PK parameters. The Cmax was recorded directly from experimental observations. |
| Dapagliflozin Pharmacokinetic Parameters on Day 7 - Maximum Observed Plasma Concentration (Cmax) | Day 7 (0 hr to 24 hr post dose) | Serial blood samples were collected predose 0 hr, and hr 0.5, 1, 2, 3, 4, 6, 8, 12, and 24 in the double-blind period. Individual subject PK parameter values were derived by non-compartmental methods by a validated PK analysis program, Kinetica®. Actual sampling times were used for PK calculations and nominal times were used for generation of mean plasma concentration-time plots and summaries. Pre-dose sample collection times were changed from negative numbers (based on elapsed time to dose) to zero for the purpose of calculating PK parameters. The Cmax was recorded directly from experimental observations. |
| Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Area Under the Concentration-Time Curve in One Dosing Interval (AUC[TAU]) | Day 7 (0 hr to 24 hr post dose) | Serial blood samples were collected predose 0 hr, and hr 0.5, 1, 2, 3, 4, 6, 8, 12, and 24 in the double-blind period. Individual subject PK parameter values were derived by non-compartmental methods by a validated PK analysis program, Kinetica®. Actual sampling times were used for PK calculations and nominal times were used for generation of mean plasma concentration-time plots and summaries. Pre-dose sample collection times were changed from negative numbers (based on elapsed time to dose) to zero for the purpose of calculating PK parameters. The concentrations below the lower limit of quantitation (\<LLOQ) were set as missing for the calculation of PK parameters as well as summary statistics. AUC\[TAU\], was calculated by a mixture of logand linear-trapezoidal summations. |
| Pharmacokinetic Parameters on Day 7 - Ratio of Metabolite (RM) to Parent AUC[TAU] | Day 7 (0 hr to 24 hr post dose) | Serial blood samples were collected predose 0 hr, and hr 0.5, 1, 2, 3, 4, 6, 8, 12, and 24 in the double-blind period. Individual subject PK parameter values were derived by non-compartmental methods by a validated PK analysis program, Kinetica®. Actual sampling times were used for PK calculations and nominal times were used for generation of mean plasma concentration-time plots and summaries. Pre-dose sample collection times were changed from negative numbers (based on elapsed time to dose) to zero for the purpose of calculating PK parameters. The concentrations below the lower limit of quantitation (\<LLOQ) were set as missing for the calculation of PK parameters as well as summary statistics. MR was calculated as the ratio of metabolite to parent AUC(TAU), corrected for molecular weights of dapagliflozin and dapagliflozin 3-O-glucuronide (408.82 and 584.99, respectively). |
| Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Time of Maximum Observed Plasma Concentration (Tmax) | Day 7 (0 hr to 24 hr post dose) | Serial blood samples were collected predose 0 hr, and hr 0.5, 1, 2, 3, 4, 6, 8, 12, and 24 in the double-blind period. Individual subject PK parameter values were derived by non-compartmental methods by a validated PK analysis program, Kinetica®. Actual sampling times were used for PK calculations and nominal times were used for generation of mean plasma concentration-time plots and summaries. Pre-dose sample collection times were changed from negative numbers (based on elapsed time to dose) to zero for the purpose of calculating PK parameters. The Tmax was recorded directly from experimental observations. |
Countries
United States
Participant flow
Recruitment details
Of 171 participants enrolled, 76 completed a screening period. Of these 76 participants, 70 were randomized and received treatment. Of these 70 participants, 62 completed double-blind treatment period.
Participants by arm
| Arm | Count |
|---|---|
| Placebo + Insulin Tablets, oral, once daily for 2 weeks | 13 |
| Dapagliflozin 1 mg + Insulin Tablets, oral, once daily for 2 weeks | 13 |
| Dapagliflozin 2.5 mg + Insulin Tablets, oral, once daily for 2 weeks | 15 |
| Dapagliflozin 5 mg + Insulin Tablets, oral, once daily for 2 weeks | 14 |
| Dapagliflozin 10 mg + Insulin Tablets, oral, once daily for 2 weeks | 15 |
| Total | 70 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 | FG002 | FG003 | FG004 |
|---|---|---|---|---|---|---|
| Overall Study | Adverse Event | 0 | 0 | 0 | 1 | 0 |
| Overall Study | No longer met criteria, etc | 0 | 0 | 0 | 0 | 2 |
| Overall Study | Withdrawal by Subject | 1 | 1 | 0 | 2 | 1 |
Baseline characteristics
| Characteristic | Dapagliflozin 5 mg + Insulin | Placebo + Insulin | Dapagliflozin 1 mg + Insulin | Dapagliflozin 2.5 mg + Insulin | Dapagliflozin 10 mg + Insulin | Total |
|---|---|---|---|---|---|---|
| Age, Continuous | 34.8 Years STANDARD_DEVIATION 14 | 34.5 Years STANDARD_DEVIATION 12.18 | 33.7 Years STANDARD_DEVIATION 9.11 | 35.7 Years STANDARD_DEVIATION 13.93 | 37.5 Years STANDARD_DEVIATION 15.24 | 35.3 Years STANDARD_DEVIATION 12.86 |
| Age, Customized 45 years and older | 5 Participants | 3 Participants | 2 Participants | 4 Participants | 5 Participants | 19 Participants |
| Age, Customized Younger than 45 years | 9 Participants | 10 Participants | 11 Participants | 11 Participants | 10 Participants | 51 Participants |
| Race/Ethnicity, Customized Asian | 0 Participants | 0 Participants | 1 Participants | 0 Participants | 0 Participants | 1 Participants |
| Race/Ethnicity, Customized Black/African American | 0 Participants | 1 Participants | 1 Participants | 1 Participants | 2 Participants | 5 Participants |
| Race/Ethnicity, Customized Other | 0 Participants | 1 Participants | 0 Participants | 0 Participants | 1 Participants | 2 Participants |
| Race/Ethnicity, Customized White | 14 Participants | 11 Participants | 11 Participants | 14 Participants | 12 Participants | 62 Participants |
| Sex/Gender, Customized Female | 6 Participants | 5 Participants | 8 Participants | 4 Participants | 7 Participants | 30 Participants |
| Sex/Gender, Customized Male | 8 Participants | 8 Participants | 5 Participants | 11 Participants | 8 Participants | 40 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk | EG003 affected / at risk | EG004 affected / at risk |
|---|---|---|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — | — / — | — / — | — / — |
| other Total, other adverse events | 8 / 13 | 5 / 13 | 7 / 15 | 7 / 14 | 6 / 15 |
| serious Total, serious adverse events | 0 / 13 | 0 / 13 | 0 / 15 | 1 / 14 | 0 / 15 |
Outcome results
Mean Change From Baseline in 7-Point Glucose Monitoring (7-PGM) at Day 7
7-PGM was measured as milligrams per deciliter (mg/dL) by a central laboratory. Baseline was defined as the assessment on Day -1, prior to the start date and time of the first dose of the double-blind study medication. 7-PGM included the average of all available glucose values before and 2-hour (hr) after each meal (breakfast, lunch, dinner) as well as bedtime. Measurements were on Day -1, and Day 7 in the double-blind period.
Time frame: From Baseline to Day 7
Population: All randomized participants who received study medication and had nonmissing values at baseline and Day 7
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Placebo + Insulin | Mean Change From Baseline in 7-Point Glucose Monitoring (7-PGM) at Day 7 | -16.52 mg/dL | Standard Error 14.6316 |
| Dapagliflozin 1 mg + Insulin | Mean Change From Baseline in 7-Point Glucose Monitoring (7-PGM) at Day 7 | -19.01 mg/dL | Standard Error 10.992 |
| Dapagliflozin 2.5 mg + Insulin | Mean Change From Baseline in 7-Point Glucose Monitoring (7-PGM) at Day 7 | -17.29 mg/dL | Standard Error 7.1451 |
| Dapagliflozin 5 mg + Insulin | Mean Change From Baseline in 7-Point Glucose Monitoring (7-PGM) at Day 7 | -23.40 mg/dL | Standard Error 9.4334 |
| Dapagliflozin 10 mg + Insulin | Mean Change From Baseline in 7-Point Glucose Monitoring (7-PGM) at Day 7 | -17.55 mg/dL | Standard Error 10.843 |
Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Area Under the Concentration-Time Curve in One Dosing Interval (AUC[TAU])
Serial blood samples were collected predose 0 hr, and hr 0.5, 1, 2, 3, 4, 6, 8, 12, and 24 in the double-blind period. Individual subject PK parameter values were derived by non-compartmental methods by a validated PK analysis program, Kinetica®. Actual sampling times were used for PK calculations and nominal times were used for generation of mean plasma concentration-time plots and summaries. Pre-dose sample collection times were changed from negative numbers (based on elapsed time to dose) to zero for the purpose of calculating PK parameters. The concentrations below the lower limit of quantitation (\<LLOQ) were set as missing for the calculation of PK parameters as well as summary statistics. AUC\[TAU\], was calculated by a mixture of logand linear-trapezoidal summations.
Time frame: Day 7 (0 hr to 24 hr post dose)
Population: Randomized subjects who took at least one dose of dapagliflozin with adequate pharmacokinetic parameter profiles
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Placebo + Insulin | Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Area Under the Concentration-Time Curve in One Dosing Interval (AUC[TAU]) | 49.63 ng*h/mL | Geometric Coefficient of Variation 29.85 |
| Dapagliflozin 1 mg + Insulin | Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Area Under the Concentration-Time Curve in One Dosing Interval (AUC[TAU]) | 132.38 ng*h/mL | Geometric Coefficient of Variation 36.06 |
| Dapagliflozin 2.5 mg + Insulin | Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Area Under the Concentration-Time Curve in One Dosing Interval (AUC[TAU]) | 262.58 ng*h/mL | Geometric Coefficient of Variation 33.33 |
| Dapagliflozin 5 mg + Insulin | Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Area Under the Concentration-Time Curve in One Dosing Interval (AUC[TAU]) | 567.77 ng*h/mL | Geometric Coefficient of Variation 39.59 |
Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Maximum Observed Plasma Concentration (Cmax)
Serial blood samples were collected predose 0 hr, and hr 0.5, 1, 2, 3, 4, 6, 8, 12, and 24 in the double-blind period. Individual subject PK parameter values were derived by non-compartmental methods by a validated PK analysis program, Kinetica®. Actual sampling times were used for PK calculations and nominal times were used for generation of mean plasma concentration-time plots and summaries. Pre-dose sample collection times were changed from negative numbers (based on elapsed time to dose) to zero for the purpose of calculating PK parameters. The Cmax was recorded directly from experimental observations.
Time frame: Day 7 (0 hr to 24 hr post dose)
Population: Randomized subjects who took at least one dose of dapagliflozin with adequate pharmacokinetic parameter profiles
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Placebo + Insulin | Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Maximum Observed Plasma Concentration (Cmax) | 10.58 ng/mL | Geometric Coefficient of Variation 31.73 |
| Dapagliflozin 1 mg + Insulin | Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Maximum Observed Plasma Concentration (Cmax) | 21.96 ng/mL | Geometric Coefficient of Variation 44.48 |
| Dapagliflozin 2.5 mg + Insulin | Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Maximum Observed Plasma Concentration (Cmax) | 49.22 ng/mL | Geometric Coefficient of Variation 43.33 |
| Dapagliflozin 5 mg + Insulin | Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Maximum Observed Plasma Concentration (Cmax) | 106.68 ng/mL | Geometric Coefficient of Variation 26.8 |
Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Time of Maximum Observed Plasma Concentration (Tmax)
Serial blood samples were collected predose 0 hr, and hr 0.5, 1, 2, 3, 4, 6, 8, 12, and 24 in the double-blind period. Individual subject PK parameter values were derived by non-compartmental methods by a validated PK analysis program, Kinetica®. Actual sampling times were used for PK calculations and nominal times were used for generation of mean plasma concentration-time plots and summaries. Pre-dose sample collection times were changed from negative numbers (based on elapsed time to dose) to zero for the purpose of calculating PK parameters. The Tmax was recorded directly from experimental observations.
Time frame: Day 7 (0 hr to 24 hr post dose)
Population: Randomized subjects who took at least one dose of dapagliflozin with adequate pharmacokinetic parameter profiles
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Placebo + Insulin | Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Time of Maximum Observed Plasma Concentration (Tmax) | 1.42 hour | Full Range 45.93 |
| Dapagliflozin 1 mg + Insulin | Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Time of Maximum Observed Plasma Concentration (Tmax) | 1.83 hour | Full Range 32.46 |
| Dapagliflozin 2.5 mg + Insulin | Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Time of Maximum Observed Plasma Concentration (Tmax) | 1.57 hour | Full Range 41.07 |
| Dapagliflozin 5 mg + Insulin | Dapagliflozin 3-O-glucuronide Pharmacokinetic Parameters on Day 7 - Time of Maximum Observed Plasma Concentration (Tmax) | 1.84 hour | Full Range 29.33 |
Dapagliflozin Pharmacokinetic Parameters on Day 7 - Area Under the Concentration-Time Curve in One Dosing Interval (AUC[TAU])
Serial blood samples were collected predose 0 hr, and hr 0.5, 1, 2, 3, 4, 6, 8, 12, and 24 in the double-blind period. Individual subject PK parameter values were derived by non-compartmental methods by a validated PK analysis program, Kinetica®. Actual sampling times were used for PK calculations and nominal times were used for generation of mean plasma concentration-time plots and summaries. Pre-dose sample collection times were changed from negative numbers (based on elapsed time to dose) to zero for the purpose of calculating PK parameters. The concentrations below the lower limit of quantitation (\<LLOQ) were set as missing for the calculation of PK parameters as well as summary statistics. AUC\[TAU\], was calculated by a mixture of logand linear-trapezoidal summations.
Time frame: Day 7 (0 hr to 24 hr post dose)
Population: Randomized subjects who took at least one dose of dapagliflozin with adequate pharmacokinetic parameter profiles
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Placebo + Insulin | Dapagliflozin Pharmacokinetic Parameters on Day 7 - Area Under the Concentration-Time Curve in One Dosing Interval (AUC[TAU]) | 48.42 ng*h/mL | Geometric Coefficient of Variation 23.71 |
| Dapagliflozin 1 mg + Insulin | Dapagliflozin Pharmacokinetic Parameters on Day 7 - Area Under the Concentration-Time Curve in One Dosing Interval (AUC[TAU]) | 127.17 ng*h/mL | Geometric Coefficient of Variation 32.3 |
| Dapagliflozin 2.5 mg + Insulin | Dapagliflozin Pharmacokinetic Parameters on Day 7 - Area Under the Concentration-Time Curve in One Dosing Interval (AUC[TAU]) | 269.09 ng*h/mL | Geometric Coefficient of Variation 27.25 |
| Dapagliflozin 5 mg + Insulin | Dapagliflozin Pharmacokinetic Parameters on Day 7 - Area Under the Concentration-Time Curve in One Dosing Interval (AUC[TAU]) | 600.01 ng*h/mL | Geometric Coefficient of Variation 48.33 |
Dapagliflozin Pharmacokinetic Parameters on Day 7 - Maximum Observed Plasma Concentration (Cmax)
Serial blood samples were collected predose 0 hr, and hr 0.5, 1, 2, 3, 4, 6, 8, 12, and 24 in the double-blind period. Individual subject PK parameter values were derived by non-compartmental methods by a validated PK analysis program, Kinetica®. Actual sampling times were used for PK calculations and nominal times were used for generation of mean plasma concentration-time plots and summaries. Pre-dose sample collection times were changed from negative numbers (based on elapsed time to dose) to zero for the purpose of calculating PK parameters. The Cmax was recorded directly from experimental observations.
Time frame: Day 7 (0 hr to 24 hr post dose)
Population: Randomized subjects who took at least one dose of dapagliflozin with adequate pharmacokinetic parameter profiles
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Placebo + Insulin | Dapagliflozin Pharmacokinetic Parameters on Day 7 - Maximum Observed Plasma Concentration (Cmax) | 12.18 ng/mL | Geometric Coefficient of Variation 45.93 |
| Dapagliflozin 1 mg + Insulin | Dapagliflozin Pharmacokinetic Parameters on Day 7 - Maximum Observed Plasma Concentration (Cmax) | 24.19 ng/mL | Geometric Coefficient of Variation 32.46 |
| Dapagliflozin 2.5 mg + Insulin | Dapagliflozin Pharmacokinetic Parameters on Day 7 - Maximum Observed Plasma Concentration (Cmax) | 66.11 ng/mL | Geometric Coefficient of Variation 41.07 |
| Dapagliflozin 5 mg + Insulin | Dapagliflozin Pharmacokinetic Parameters on Day 7 - Maximum Observed Plasma Concentration (Cmax) | 134.34 ng/mL | Geometric Coefficient of Variation 29.33 |
Dapagliflozin Pharmacokinetic Parameters on Day 7 - Time of Maximum Observed Plasma Concentration (Tmax)
Serial blood samples were collected predose 0 hr, and hr 0.5, 1, 2, 3, 4, 6, 8, 12, and 24 in the double-blind period. Individual subject PK parameter values were derived by non-compartmental methods by a validated PK analysis program, Kinetica®. Actual sampling times were used for PK calculations and nominal times were used for generation of mean plasma concentration-time plots and summaries. Pre-dose sample collection times were changed from negative numbers (based on elapsed time to dose) to zero for the purpose of calculating PK parameters. The Tmax was recorded directly from experimental observations.
Time frame: Day 7 (0 hr to 24 hr post dose)
Population: Randomized subjects who took at least one dose of dapagliflozin with adequate pharmacokinetic parameter profiles
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Placebo + Insulin | Dapagliflozin Pharmacokinetic Parameters on Day 7 - Time of Maximum Observed Plasma Concentration (Tmax) | 1.04 hour | Full Range 45.93 |
| Dapagliflozin 1 mg + Insulin | Dapagliflozin Pharmacokinetic Parameters on Day 7 - Time of Maximum Observed Plasma Concentration (Tmax) | 1.08 hour | Full Range 32.46 |
| Dapagliflozin 2.5 mg + Insulin | Dapagliflozin Pharmacokinetic Parameters on Day 7 - Time of Maximum Observed Plasma Concentration (Tmax) | 1.03 hour | Full Range 41.07 |
| Dapagliflozin 5 mg + Insulin | Dapagliflozin Pharmacokinetic Parameters on Day 7 - Time of Maximum Observed Plasma Concentration (Tmax) | 1.27 hour | Full Range 29.33 |
Pharmacokinetic Parameters on Day 7 - Ratio of Metabolite (RM) to Parent AUC[TAU]
Serial blood samples were collected predose 0 hr, and hr 0.5, 1, 2, 3, 4, 6, 8, 12, and 24 in the double-blind period. Individual subject PK parameter values were derived by non-compartmental methods by a validated PK analysis program, Kinetica®. Actual sampling times were used for PK calculations and nominal times were used for generation of mean plasma concentration-time plots and summaries. Pre-dose sample collection times were changed from negative numbers (based on elapsed time to dose) to zero for the purpose of calculating PK parameters. The concentrations below the lower limit of quantitation (\<LLOQ) were set as missing for the calculation of PK parameters as well as summary statistics. MR was calculated as the ratio of metabolite to parent AUC(TAU), corrected for molecular weights of dapagliflozin and dapagliflozin 3-O-glucuronide (408.82 and 584.99, respectively).
Time frame: Day 7 (0 hr to 24 hr post dose)
Population: Randomized subjects who took at least one dose of dapagliflozin with adequate pharmacokinetic parameter profiles
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Placebo + Insulin | Pharmacokinetic Parameters on Day 7 - Ratio of Metabolite (RM) to Parent AUC[TAU] | 0.72 (ng*h/mL):(ng*h/mL) | Geometric Coefficient of Variation 29.29 |
| Dapagliflozin 1 mg + Insulin | Pharmacokinetic Parameters on Day 7 - Ratio of Metabolite (RM) to Parent AUC[TAU] | 0.73 (ng*h/mL):(ng*h/mL) | Geometric Coefficient of Variation 33.22 |
| Dapagliflozin 2.5 mg + Insulin | Pharmacokinetic Parameters on Day 7 - Ratio of Metabolite (RM) to Parent AUC[TAU] | 0.68 (ng*h/mL):(ng*h/mL) | Geometric Coefficient of Variation 25.69 |
| Dapagliflozin 5 mg + Insulin | Pharmacokinetic Parameters on Day 7 - Ratio of Metabolite (RM) to Parent AUC[TAU] | 0.66 (ng*h/mL):(ng*h/mL) | Geometric Coefficient of Variation 32.37 |