Title

Evaluation of Safety and Efficacy of Dapagliflozin in Subjects With Type 2 Diabetes Who Have Inadequate Glycaemic Control on Background Combination of Metformin and Sulfonylurea
A 24-week, Multicentre, Randomised, Double-Blind, Placebo-Controlled, International Phase III Study With a 28-week Extension Period to Evaluate the Safety and Efficacy of Dapagliflozin 10mg Once Daily in Patients With Type 2 Diabetes Who Have Inadequate Glycaemic Control on a Background Combination of Metformin and Sulfonylurea
  • Phase

    Phase 3
  • Study Type

    Interventional
  • Study Participants

    311
This study intends to compare the efficacy and safety of dapagliflozin versus placebo in patients with type 2 diabetes who have inadequate glycaemic control on a background combination of metformin and sulfonylurea.
Study Started
Oct 31
2011
Primary Completion
Jan 31
2013
Study Completion
Aug 31
2013
Results Posted
Dec 27
2013
Estimate
Last Update
Mar 12
2014
Estimate

Drug dapagliflozin

10 mg tablet, oral, once daily, 24- week treatment and 28- week extension period

Drug placebo

matching placebo tablet, oral, once daily, 24- week treatment and 28- week extension period

Dapagliflozin 10 mg tablet Experimental

matching placebo tablet Placebo Comparator

Criteria

Inclusion Criteria:

Type 2 diabetes mellitus
Men or women age ≥ 18 years old
Stable dose combination of metformin and sulfonylurea
HbA1c ≥7.7% and ≤11.0%

Exclusion Criteria:

Type 1 diabetes mellitus or diabetes insipidus
Recent cardiovascular events
Kidney or urological disorders
Hepatic disorders

Summary

Placebo Plus Metformin Plus Sulfonylurea

Dapagliflozin 10mg Plus Metformin Plus Sulfonylurea

All Events

Event Type Organ System Event Term Placebo Plus Metformin Plus Sulfonylurea Dapagliflozin 10mg Plus Metformin Plus Sulfonylurea

Adjusted Mean Change From Baseline in HbA1c Levels

To compare the change from baseline in HbA1c to week 24 between dapagliflozin 10 mg in combination with metformin and sulfonylurea and placebo in combination with metformin and sulfonylurea.

Placebo Plus Metformin Plus Sulfonylurea

-0.17
Percent (Least Squares Mean)
95% Confidence Interval: -0.31 to -0.02

Dapagliflozin 10mg Plus Metformin Plus Sulfonylurea

-0.86
Percent (Least Squares Mean)
95% Confidence Interval: -1.0 to -0.72

Adjusted Mean Change From Baseline in Total Body Weight

To compare the change from baseline in total body weight to week 24 (LOCF) between dapagliflozin and placebo

Placebo Plus Metformin Plus Sulfonylurea

-0.58
kg (Least Squares Mean)
95% Confidence Interval: -1.09 to -0.07

Dapagliflozin 10mg Plus Metformin Plus Sulfonylurea

-2.65
kg (Least Squares Mean)
95% Confidence Interval: -3.16 to -2.14

Adjusted Mean Change From Baseline in FPG

To compare the change from baseline in fasting plasma glucose (FPG) to week 24 (LOCF) between dapagliflozin and placebo

Placebo Plus Metformin Plus Sulfonylurea

-0.78
mg/dL (Least Squares Mean)
95% Confidence Interval: -7.56 to 6.01

Dapagliflozin 10mg Plus Metformin Plus Sulfonylurea

-34.23
mg/dL (Least Squares Mean)
95% Confidence Interval: -40.98 to -27.48

Proportion of Participants With HbA1c Value < 7.0% at Week 24 (LOCF)

To compare the proportion of subjects achieving a therapeutic glycemic response, defined as HbA1c <7.0%, at week 24 (LOCF) between dapagliflozin and placebo

Placebo Plus Metformin Plus Sulfonylurea

11.1
Percentage of participants (Least Squares Mean)
95% Confidence Interval: 5.4 to 16.8

Dapagliflozin 10mg Plus Metformin Plus Sulfonylurea

31.8
Percentage of participants (Least Squares Mean)
95% Confidence Interval: 23.3 to 40.2

Adjusted Mean Change From Baseline in Seated Systolic Blood Pressure

To compare the change from baseline in seated systolic blood pressure (SBP) to week 8 (LOCF) between dapagliflozin and placebo

Placebo Plus Metformin Plus Sulfonylurea

-0.27
mmHg (Least Squares Mean)
95% Confidence Interval: -2.6 to 2.05

Dapagliflozin 10mg Plus Metformin Plus Sulfonylurea

-4.04
mmHg (Least Squares Mean)
95% Confidence Interval: -6.36 to -1.72

Total

216
Participants

Age, Continuous

61.0
Years (Mean)
Standard Deviation: 9.42

Body Mass Index

31.97
kg/m^2 (Mean)
Standard Deviation: 4.702

Body Weight

89.32
kg (Mean)
Standard Deviation: 16.872

Fasting C-Peptide

2.5
ng/mL (Mean)
Standard Deviation: 1.02

Fasting Plasma Glucose

173.8
mg/dL (Mean)
Standard Deviation: 43.61

Glycosylated hemoglobin A1c (HbA1c)

8.16
Percent (Mean)
Standard Deviation: 0.890

Race/Ethnicity, Customized

Sex: Female, Male

Overall Study

Placebo Plus Metformin Plus Sulfonylurea

Dapagliflozin 10mg Plus Metformin Plus Sulfonylurea

Drop/Withdrawal Reasons

Placebo Plus Metformin Plus Sulfonylurea

Dapagliflozin 10mg Plus Metformin Plus Sulfonylurea