We updated the design of this site on September 25th. Learn more.
Show more
ClinicalTrials.gov
ClinicalTrials.gov Menu

Effect of Liraglutide or Exenatide Added to an Ongoing Treatment on Blood Glucose Control in Subjects With Type 2 Diabetes (LEAD-6)

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00518882
First Posted: August 21, 2007
Last Update Posted: March 8, 2017
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Novo Nordisk A/S
Results First Submitted: February 23, 2010  
Study Type: Interventional
Study Design: Allocation: Randomized;   Intervention Model: Parallel Assignment;   Masking: None (Open Label);   Primary Purpose: Treatment
Conditions: Diabetes
Diabetes Mellitus, Type 2
Interventions: Drug: liraglutide
Drug: exenatide

  Participant Flow
  Hide Participant Flow

Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
A total of 133 centres in 15 countries: Austria (4), Denmark (6), Finland (5), France (5), Germany (14), Ireland (4), Macedonia (1), Norway (4), Poland (9), Romania (3), Slovenia (3), Spain (4), Sweden (2), Switzerland (4) and United States (65).

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
Eligible subjects were subjects with type 2 diabetes being treated with oral anti-diabetic (OAD) therapy(ies) for at least 3 months prior to the study. Three subjects were exposed to study drug prior to randomisation, and thus only included in safety analysis set.

Reporting Groups
  Description
Liraglutide -> Liraglutide -> Liraglutide Liraglutide 1.8 mg once daily + OAD (metformin monotherapy, sulphonylurea (SU) monotherapy or a combination), Weeks 0-26 (double-blinded) continued to receive liraglutide 1.8 mg once daily + OAD in extension period (weeks 26-52 and 52-78)
Exenatide -> Liraglutide -> Liraglutide Exenatide 10 mcg twice daily + OAD (metformin monotherapy, sulphonylurea (SU) monotherapy or a combination), Weeks 0-26 (double-blinded) switched to receive liraglutide 1.8 mg once daily + OAD in extension period (weeks 26-52 and 52-78)

Participant Flow for 2 periods

Period 1:   Double-Blind, Week 0-26
    Liraglutide -> Liraglutide -> Liraglutide   Exenatide -> Liraglutide -> Liraglutide
STARTED   235 [1]   232 [2] 
Randomised   233   231 
COMPLETED   202   187 
NOT COMPLETED   33   45 
Adverse Event                23                31 
Lack of Efficacy                1                0 
Protocol Violation                4                3 
Withdrawal criteria                1                1 
Lost to follow up                2                1 
Subject decision                1                1 
Withdrawal of consent                1                3 
Loss of trust                0                1 
Fear of hypoglycaemia                0                1 
Hypoglycaemia                0                2 
Mutual consent                0                1 
[1] 2 subjects exposed to study drug before randomisation. Subjects only included in safety analysis set
[2] 1 subject exposed to study drug before randomisation. Subject only included in safety analysis set

Period 2:   Open-Label Extension, Week 26-78
    Liraglutide -> Liraglutide -> Liraglutide   Exenatide -> Liraglutide -> Liraglutide
STARTED   202   187 
COMPLETED   161   138 
NOT COMPLETED   41   49 
Adverse Event                3                9 
Lack of Efficacy                6                5 
Protocol Violation                3                4 
Withdrawel criteria                1                2 
Hypoglycaemia                0                1 
Lost to follow up                1                1 
Consent withdrawn                2                1 
Change in treatment                1                1 
Creatine increased                1                0 
Decreased kidney function                1                0 
Exclusion criteria                2                0 
Subject decision                2                0 
Completed extension 1 (weeks 26-40)                18                25 



  Baseline Characteristics
  Hide Baseline Characteristics

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
No text entered.

Reporting Groups
  Description
Liraglutide -> Liraglutide -> Liraglutide Liraglutide 1.8 mg once daily + OAD (metformin monotherapy, sulphonylurea (SU) monotherapy or a combination), Weeks 0-26 (double-blinded) continued to receive liraglutide 1.8 mg once daily + OAD in extension period (weeks 26-52 and 52-78)
Exenatide -> Liraglutide -> Liraglutide Exenatide 10 mcg twice daily + OAD (metformin monotherapy, sulphonylurea (SU) monotherapy or a combination), Weeks 0-26 (double-blinded) switched to receive liraglutide 1.8 mg once daily + OAD in extension period (weeks 26-52 and 52-78)
Total Total of all reporting groups

Baseline Measures
   Liraglutide -> Liraglutide -> Liraglutide   Exenatide -> Liraglutide -> Liraglutide   Total 
Overall Participants Analyzed 
[Units: Participants]
 233   231   464 
Age 
[Units: Years]
Mean (Standard Deviation)
 56.3  (9.8)   57.1  (10.8)   56.7  (10.3) 
Sex: Female, Male 
[Units: Participants]
Count of Participants
     
Female      119  51.1%      104  45.0%      223  48.1% 
Male      114  48.9%      127  55.0%      241  51.9% 
Ethnicity (NIH/OMB) 
[Units: Participants]
Count of Participants
     
Hispanic or Latino      32  13.7%      25  10.8%      57  12.3% 
Not Hispanic or Latino      201  86.3%      206  89.2%      407  87.7% 
Unknown or Not Reported      0   0.0%      0   0.0%      0   0.0% 
Race (NIH/OMB) 
[Units: Participants]
Count of Participants
     
American Indian or Alaska Native      0   0.0%      1   0.4%      1   0.2% 
Asian      0   0.0%      4   1.7%      4   0.9% 
Native Hawaiian or Other Pacific Islander      1   0.4%      1   0.4%      2   0.4% 
Black or African American      13   5.6%      12   5.2%      25   5.4% 
White      216  92.7%      210  90.9%      426  91.8% 
More than one race      0   0.0%      0   0.0%      0   0.0% 
Unknown or Not Reported      3   1.3%      3   1.3%      6   1.3% 
Previous OAD treatment [1] 
[Units: Participants]
     
Metformin/Sulphonylurea Combination   145   147   292 
Sulphonylurea   24   21   45 
Metformin   64   63   127 
[1] OAD = Oral Anti-diabetic Drug
BMI [1] 
[Units: Kg/m2]
Mean (Standard Deviation)
 32.9  (5.5)   32.9  (5.7)   32.9  (5.6) 
[1] Body Mass Index
Duration of diabetes [1] 
[Units: Years]
Mean (Standard Deviation)
 8.5  (6.2)   7.9  (5.9)   8.2  (6.0) 
[1] Number of years since diagnosis
HbA1c [1] 
[Units: Percentage of total haemoglobin]
Mean (Standard Deviation)
 8.4  (1.0)   8.2  (1.0)   8.3  (1.0) 
[1] Glycosylated Haemoglobin at screening
Height 
[Units: m]
Mean (Standard Deviation)
 1.68  (0.10)   1.68  (0.10)   1.68  (0.10) 
Weight 
[Units: Kg]
Mean (Standard Deviation)
 93.1  (20.1)   93.0  (19.5)   93.1  (19.8) 


  Outcome Measures
  Show All Outcome Measures

1.  Primary:   Change in Glycosylated A1c (HbA1c) at Week 26   [ Time Frame: week 0, week 26 ]

2.  Secondary:   Change in Glycosylated A1c (HbA1c), Weeks 26-78   [ Time Frame: week 26, week 78 ]

3.  Secondary:   Change in Glycosylated A1c (HbA1c) at Week 78   [ Time Frame: week 0, week 78 ]

4.  Secondary:   Percentage of Subjects Achieving Treatment Target of Either HbA1c < 7.0% or =< 6.5% at Week 26   [ Time Frame: week 0, week 26 ]

5.  Secondary:   Percentage of Subjects Achieving Treatment Target of Either HbA1c < 7.0% or =< 6.5% at Week 78   [ Time Frame: week 0, week 78 ]

6.  Secondary:   Change in Body Weight at Week 26   [ Time Frame: week 0, week 26 ]

7.  Secondary:   Change in Body Weight, Weeks 26-78   [ Time Frame: week 26, week 78 ]

8.  Secondary:   Change in Body Weight at Week 78   [ Time Frame: week 0, week 78 ]

9.  Secondary:   Change in Fasting Plasma Glucose at Week 26   [ Time Frame: week 0, week 26 ]

10.  Secondary:   Change in Fasting Plasma Glucose, Weeks 26-78   [ Time Frame: week 26, week 78 ]

11.  Secondary:   Change in Fasting Plasma Glucose at Week 78   [ Time Frame: week 0, week 78 ]

12.  Secondary:   Change in Mean Prandial Increment of Plasma Glucose After Breakfast at Week 26   [ Time Frame: week 0, week 26 ]

13.  Secondary:   Change in Mean Prandial Increment of Plasma Glucose After Lunch at Week 26   [ Time Frame: week 0, week 26 ]

14.  Secondary:   Change in Mean Prandial Increment of Plasma Glucose After Dinner at Week 26   [ Time Frame: week 0, week 26 ]

15.  Secondary:   Change in Mean Prandial Increment of Plasma Glucose After Breakfast, Weeks 26-78   [ Time Frame: week 26, week 78 ]

16.  Secondary:   Change in Mean Prandial Increment of Plasma Glucose After Lunch, Weeks 26-78   [ Time Frame: week 26, week 78 ]

17.  Secondary:   Change in Mean Prandial Increment of Plasma Glucose After Dinner, Weeks 26-78   [ Time Frame: week 26, week 78 ]

18.  Secondary:   Change in Mean Prandial Increment of Plasma Glucose After Breakfast at Week 78   [ Time Frame: week 0, week 78 ]

19.  Secondary:   Change in Mean Prandial Increment of Plasma Glucose After Lunch at Week 78   [ Time Frame: week 0, week 78 ]

20.  Secondary:   Change in Mean Prandial Increment of Plasma Glucose After Dinner at Week 78   [ Time Frame: week 0, week 78 ]
  Hide Outcome Measure 20

Measure Type Secondary
Measure Title Change in Mean Prandial Increment of Plasma Glucose After Dinner at Week 78
Measure Description Change in mean prandial increment of plasma glucose after dinner from baseline (week 0) to 78 weeks (end of treatment). Prandial increments of plasma glucose were calculated as the difference between plasma glucose values measured before and after dinner.
Time Frame week 0, week 78  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
Intention to Treat (ITT) analysis set using LOCF (Last Observation Carried Forward) is all randomised subjects who entered the extension period and who had been exposed to at least one dose of the study drugs.

Reporting Groups
  Description
Liraglutide -> Liraglutide -> Liraglutide Liraglutide 1.8 mg once daily + OAD (metformin monotherapy, sulphonylurea (SU) monotherapy or a combination), Weeks 0-26 (double-blinded) continued to receive liraglutide 1.8 mg once daily + OAD in extension period (weeks 26-52 and 52-78)
Exenatide -> Liraglutide -> Liraglutide Exenatide 10 mcg twice daily + OAD (metformin monotherapy, sulphonylurea (SU) monotherapy or a combination), Weeks 0-26 (double-blinded) switched to receive liraglutide 1.8 mg once daily + OAD in extension period (weeks 26-52 and 52-78)

Measured Values
   Liraglutide -> Liraglutide -> Liraglutide   Exenatide -> Liraglutide -> Liraglutide 
Participants Analyzed 
[Units: Participants]
 190   166 
Change in Mean Prandial Increment of Plasma Glucose After Dinner at Week 78 
[Units: mmol/L]
Mean (Standard Deviation)
 -0.35  (3.975)   -0.95  (3.230) 


Statistical Analysis 1 for Change in Mean Prandial Increment of Plasma Glucose After Dinner at Week 78
Groups [1] Liraglutide -> Liraglutide -> Liraglutide
Statistical Test Type [2] Superiority or Other
Statistical Method [3] Paired t test
P Value [4] 0.2290
Mean [5] -0.35
95% Confidence Interval -0.917 to 0.2211
Standard Deviation (3.975)
[1] Additional details about the analysis, such as null hypothesis and power calculation:
  The analysis was made with a paired t test within the treatment group and 95% CIs for the difference between Weeks 0 and 78 were constructed. H0 was µ78– µ0=0 against HA: µ78 – µ0 ≠ 0. A difference between the two means was concluded when H0 was rejected at the 5% level.
[2] Details of power calculation, definition of non-inferiority margin, and other key parameters:
  No text entered.
[3] Other relevant method information, such as adjustments or degrees of freedom:
  No text entered.
[4] Additional information, such as whether or not the p-value is adjusted for multiple comparisons and the a priori threshold for statistical significance:
  No text entered.
[5] Other relevant estimation information:
  No text entered.

Statistical Analysis 2 for Change in Mean Prandial Increment of Plasma Glucose After Dinner at Week 78
Groups [1] Exenatide -> Liraglutide -> Liraglutide
Statistical Test Type [2] Superiority or Other
Statistical Method [3] Paired t test
P Value [4] 0.0002
Mean [5] -0.95
95% Confidence Interval -1.449 to -0.459
Standard Deviation (3.230)
[1] Additional details about the analysis, such as null hypothesis and power calculation:
  The analysis was made with a paired t test within the treatment group and 95% CIs for the difference between Weeks 0 and 78 were constructed. H0 was µ78– µ0=0 against HA: µ78 – µ0 ≠ 0. A difference between the two means was concluded when H0 was rejected at the 5% level.
[2] Details of power calculation, definition of non-inferiority margin, and other key parameters:
  No text entered.
[3] Other relevant method information, such as adjustments or degrees of freedom:
  No text entered.
[4] Additional information, such as whether or not the p-value is adjusted for multiple comparisons and the a priori threshold for statistical significance:
  No text entered.
[5] Other relevant estimation information:
  No text entered.



21.  Secondary:   Change in Mean Postprandial Increment of Plasma Glucose After Breakfast at Week 26   [ Time Frame: week 0, week 26 ]

22.  Secondary:   Change in Mean Postprandial Increment of Plasma Glucose After Lunch at Week 26   [ Time Frame: week 0. week 26 ]

23.  Secondary:   Change in Mean Postprandial Increment of Plasma Glucose After Dinner at Week 26   [ Time Frame: week 0, week 26 ]

24.  Secondary:   Change in Mean Postprandial Increment of Plasma Glucose After Breakfast, Weeks 26-78   [ Time Frame: week 26, week 78 ]

25.  Secondary:   Change in Mean Postprandial Increment of Plasma Glucose After Lunch, Weeks 26-78   [ Time Frame: week 26, week 78 ]

26.  Secondary:   Change in Mean Postprandial Increment of Plasma Glucose After Dinner, Weeks 26-78   [ Time Frame: week 26, week 78 ]

27.  Secondary:   Change in Mean Postprandial Increment of Plasma Glucose After Breakfast at Week 78   [ Time Frame: week 0, week 78 ]

28.  Secondary:   Change in Mean Postprandial Increment of Plasma Glucose After Lunch at Week 78   [ Time Frame: week 0, week 78 ]

29.  Secondary:   Change in Mean Postprandial Increment of Plasma Glucose After Dinner at Week 78   [ Time Frame: week 0, week 78 ]

30.  Secondary:   Change in Beta-cell Function at Week 26   [ Time Frame: week 0, week 26 ]

31.  Secondary:   Change in Beta-cell Function, Weeks 26-78   [ Time Frame: week 26, week 78 ]

32.  Secondary:   Change in Beta-cell Function at Week 78   [ Time Frame: week 0, week 78 ]

33.  Secondary:   Change in Total Cholesterol at Week 26   [ Time Frame: week 0, week 26 ]

34.  Secondary:   Change in Total Cholesterol, Weeks 26-78   [ Time Frame: week 26, week 78 ]

35.  Secondary:   Change in Total Cholesterol at Week 78   [ Time Frame: week 0, week 78 ]

36.  Secondary:   Change in Low-density Lipoprotein-cholesterol at Week 26   [ Time Frame: week 0, week 26 ]

37.  Secondary:   Change in Low-density Lipoprotein-cholesterol, Weeks 26-78   [ Time Frame: week 26, week 78 ]

38.  Secondary:   Change in Low-density Lipoprotein-cholesterol at Week 78   [ Time Frame: week 0, week 78 ]

39.  Secondary:   Change in Very Low-density Lipoprotein-cholesterol at Week 26   [ Time Frame: week 0, week 26 ]

40.  Secondary:   Change in Very Low-density Lipoprotein-cholesterol, Weeks 26-78   [ Time Frame: week 26, week 78 ]

41.  Secondary:   Change in Very Low-density Lipoprotein-cholesterol at Week 78   [ Time Frame: week 0, week 78 ]

42.  Secondary:   Change in High-density Lipoprotein-cholesterol at Week 26   [ Time Frame: week 0, week 26 ]

43.  Secondary:   Change in High-density Lipoprotein-cholesterol, Weeks 26-78   [ Time Frame: week 26, week 78 ]

44.  Secondary:   Change in High-density Lipoprotein-cholesterol at Week 78   [ Time Frame: week 0, week 78 ]

45.  Secondary:   Change in Triglyceride at Week 26   [ Time Frame: week 0, week 26 ]

46.  Secondary:   Change in Triglyceride, Weeks 26-78   [ Time Frame: week 26, week 78 ]

47.  Secondary:   Change in Triglyceride at Week 78   [ Time Frame: week 0, week 78 ]

48.  Secondary:   Change in Free Fatty Acid at Week 26   [ Time Frame: week 0, week 26 ]

49.  Secondary:   Change in Free Fatty Acid, Weeks 26-78   [ Time Frame: week 26, week 78 ]

50.  Secondary:   Change in Free Fatty Acid at Week 78   [ Time Frame: week 0, week 78 ]

51.  Secondary:   Change in Apolipoprotein B at Week 26   [ Time Frame: week 0, week 26 ]

52.  Secondary:   Change in Apolipoprotein B, Weeks 26-78   [ Time Frame: week 26, week 78 ]

53.  Secondary:   Change in Apolipoprotein B at Week 78   [ Time Frame: week 0, week 78 ]

54.  Secondary:   Hypoglycaemic Episodes at Week 26   [ Time Frame: weeks 0-26 ]

55.  Secondary:   Hypoglyceamic Episodes, Weeks 26-78   [ Time Frame: weeks 26-78 ]


  Serious Adverse Events


  Other Adverse Events


  Limitations and Caveats
  Hide Limitations and Caveats

Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
No text entered.


  More Information