Clinical Trial Results:
Efficacy and safety of switching from sitagliptin to liraglutide in subjects with type 2 diabetes not achieving adequate glycaemic control on sitagliptin and metformin
Summary
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EudraCT number |
2012-004931-22 |
Trial protocol |
ES HU |
Global end of trial date |
15 Jun 2015
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Results information
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Results version number |
v1(current) |
This version publication date |
08 Jun 2016
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First version publication date |
08 Jun 2016
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Other versions |
Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
NN2211-4059
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT01907854 | ||
WHO universal trial number (UTN) |
U1111-1136-2073 | ||
Sponsors
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Sponsor organisation name |
Novo Nordisk A/S
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Sponsor organisation address |
Novo Allé, Bagsværd, Denmark, 2880
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Public contact |
Global Clinical Registry (GCR, 1452), Novo Nordisk A/S, clinicaltrials@novonordisk.com
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Scientific contact |
Global Clinical Registry (GCR, 1452), Novo Nordisk A/S, clinicaltrials@novonordisk.com
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
No
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Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
14 Dec 2015
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Is this the analysis of the primary completion data? |
Yes
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Primary completion date |
15 Jun 2015
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Global end of trial reached? |
Yes
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Global end of trial date |
15 Jun 2015
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Was the trial ended prematurely? |
No
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General information about the trial
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Main objective of the trial |
To confirm superiority of switch from sitagliptin 100 mg/day to liraglutide 1.8 mg/day, both + metformin vs. continued sitagliptin 100 mg/day + metformin on glycaemic control after 26 weeks of treatment in subjects with type 2 diabetes.
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Protection of trial subjects |
The trial was conducted in accordance with the Declaration of Helsinki (Seoul, Oct 2008) and ICH Good Clinical Practice (01-May-1996) and 21 CFR 312.120.
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Background therapy |
Metformin was considered as background medication (NIMP) and was open-label throughout the trial. Subjects were to continue their pre-trial metformin treatment. Pre-trial dose level, dosing frequency and formulation had to remain the same throughout the trial, at the discretion of the investigator. An oral anti-diabetic, Metformin is administered as a tablet. The total daily dose was to be greater than equal to 1000 mg/day, divided into 1-3 doses. | ||
Evidence for comparator |
Not applicable | ||
Actual start date of recruitment |
02 Dec 2013
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
No
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
Spain: 59
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Country: Number of subjects enrolled |
Hungary: 66
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Country: Number of subjects enrolled |
Canada: 60
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Country: Number of subjects enrolled |
India: 70
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Country: Number of subjects enrolled |
Israel: 39
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Country: Number of subjects enrolled |
United States: 113
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Worldwide total number of subjects |
407
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EEA total number of subjects |
125
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
0
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Adults (18-64 years) |
321
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From 65 to 84 years |
85
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85 years and over |
1
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Recruitment
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Recruitment details |
The trial was conducted at 86 sites in 6 countries as follows: Canada: 14 sites; Hungary: 8 sites; India: 7 sites; Israel: 8 sites; Spain: 6 sites; United States: 43 sites. | |||||||||||||||||||||||||||
Pre-assignment
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Screening details |
Subjects were adult males or females with Type 2 diabetes mellitus (T2DM) who had inadequate glycemic control with stable doses of sitagliptin and metformin for 90 days prior to screening. | |||||||||||||||||||||||||||
Period 1
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Period 1 title |
Overall Study (overall period)
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Is this the baseline period? |
Yes | |||||||||||||||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Double blind | |||||||||||||||||||||||||||
Roles blinded |
Subject, Investigator | |||||||||||||||||||||||||||
Blinding implementation details |
A randomised double-blind, double-dummy, active-controlled design was chosen in accordance with the trial objectives. The double-dummy design was applied to eliminate potential bias of efficacy and safety results to the widest possible extent. Stratification was implemented in order to avoid bias arising from differences in glycosylated hemoglobin (HbA1c) and metformin dose at screening between the two arms.
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Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Liraglutide | |||||||||||||||||||||||||||
Arm description |
Subjects in this arm received treatments for a duration of 26 weeks; once-daily (OD) liraglutide (s.c., [under the skin] injection 0.6 mg/day, with weekly dose escalations of 0.6 mg/day up to a maintenance dose of 1.8 mg/day) + metformin tablets (≥1500 mg/day [or documented maximum tolerated dose ≥1000 mg/day) + OD sitagliptin placebo tablets. | |||||||||||||||||||||||||||
Arm type |
Experimental | |||||||||||||||||||||||||||
Investigational medicinal product name |
Liraglutide
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Investigational medicinal product code |
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Other name |
Victoza
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Pharmaceutical forms |
Solution for injection in pre-filled pen
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Routes of administration |
Subcutaneous use
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Dosage and administration details |
Liraglutide was initiated with a starting dose of 0.6 mg/day, with subsequent weekly dose escalations of 0.6 mg/day in accordance with the approved dose escalation for liraglutide until the maintenance dose of 1.8 mg/day in this trial was reached. Escalation from 0.6 to 1.2 then 1.8 mg/day could be extended by 7 days in total if subjects did not tolerate an increase in dose during dose escalation, at the discretion of the investigator. The liraglutide maintenance dose of 1.8 mg/day had to remain unchanged throughout the remainder of the trial. Liraglutide was to be injected subcutaneously (sc., under the skin) in the thigh, upper arm (deltoid region) or abdomen. The injection site did not have to be consistent throughout the trial. Injections could be done at any time of the day irrespective of meals.
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Investigational medicinal product name |
Sitagliptin placebo
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Tablet
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Routes of administration |
Oral use
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Dosage and administration details |
Matching sitagliptin placebo is an oral anti-diabetic administered as a tablet. Sitagliptin 100 mg was administered once daily irrespective of meals. The dose and daily time of tablet administration was to remain the same throughout the treatment period.
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Arm title
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Sitagliptin | |||||||||||||||||||||||||||
Arm description |
Subjects in this arm received treatments for a duration of 26 weeks; OD sitagliptin tablets (100 mg) + metformin tablets (≥1500 mg/day [or documented maximum tolerated dose ≥1000 mg/day]) + OD s.c., injection of liraglutide placebo. | |||||||||||||||||||||||||||
Arm type |
Active comparator | |||||||||||||||||||||||||||
Investigational medicinal product name |
Sitagliptin
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Investigational medicinal product code |
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Other name |
Januvia
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Pharmaceutical forms |
Tablet
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Routes of administration |
Oral use
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Dosage and administration details |
Sitagliptin is an oral anti-diabetic administered as a tablet. Sitagliptin 100 mg was administered once daily irrespective of meals. The dose and daily time of tablet administration was to remain the same throughout the treatment period.
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Investigational medicinal product name |
Liraglutide placebo
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Solution for injection in pre-filled pen
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Routes of administration |
Subcutaneous use
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Dosage and administration details |
Matching liraglutide placebo was initiated with a starting dose of 0.6 mg/day, with subsequent weekly dose escalations of 0.6 mg/day in accordance with the approved dose escalation for liraglutide until the maintenance dose of 1.8 mg/day in this trial was reached. Escalation from 0.6 to 1.2 then 1.8 mg/day could be extended by 7 days in total if subjects did not tolerate an increase in dose during dose escalation, at the discretion of the investigator. The liraglutide maintenance dose of 1.8 mg/day had to remain unchanged throughout the remainder of the trial. Liraglutide was to be injected subcutaneously in the thigh, upper arm (deltoid region) or abdomen. The injection site did not have to be consistent throughout the trial. Injections could be done at any time of the day irrespective of meals.
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Baseline characteristics reporting groups
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Reporting group title |
Liraglutide
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Reporting group description |
Subjects in this arm received treatments for a duration of 26 weeks; once-daily (OD) liraglutide (s.c., [under the skin] injection 0.6 mg/day, with weekly dose escalations of 0.6 mg/day up to a maintenance dose of 1.8 mg/day) + metformin tablets (≥1500 mg/day [or documented maximum tolerated dose ≥1000 mg/day) + OD sitagliptin placebo tablets. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Sitagliptin
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Reporting group description |
Subjects in this arm received treatments for a duration of 26 weeks; OD sitagliptin tablets (100 mg) + metformin tablets (≥1500 mg/day [or documented maximum tolerated dose ≥1000 mg/day]) + OD s.c., injection of liraglutide placebo. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Liraglutide
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Reporting group description |
Subjects in this arm received treatments for a duration of 26 weeks; once-daily (OD) liraglutide (s.c., [under the skin] injection 0.6 mg/day, with weekly dose escalations of 0.6 mg/day up to a maintenance dose of 1.8 mg/day) + metformin tablets (≥1500 mg/day [or documented maximum tolerated dose ≥1000 mg/day) + OD sitagliptin placebo tablets. | ||
Reporting group title |
Sitagliptin
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Reporting group description |
Subjects in this arm received treatments for a duration of 26 weeks; OD sitagliptin tablets (100 mg) + metformin tablets (≥1500 mg/day [or documented maximum tolerated dose ≥1000 mg/day]) + OD s.c., injection of liraglutide placebo. |
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End point title |
Change in HbA1c | ||||||||||||
End point description |
Change from baseline in HbA1c was analysed after 26 weeks of treatment. Analysis population set: full analysis set (FAS); all randomised subjects receiving at least one dose of any of the trial products. Missing values were imputed using mixed model for repeated measurements (MMRM).
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End point type |
Primary
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End point timeframe |
From baseline to Week 26
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Statistical analysis title |
Statistical Analysis 1 | ||||||||||||
Statistical analysis description |
Changes in HbA1c from baseline to the 26 weeks’ measurements were analysed using MMRM, with treatment, baseline HbA1c level (≤8.5% and >8.5%), metformin dose (<1500 mg/day and ≥1500 mg/day), the interaction between baseline HbA1c level and metformin dose, and country as factors and the HbA1c value at baseline as a covariate, all variables nested within week as a factor.
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Comparison groups |
Liraglutide v Sitagliptin
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Number of subjects included in analysis |
358
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||
P-value |
< 0.0001 [1] | ||||||||||||
Method |
Mixed models analysis | ||||||||||||
Parameter type |
Treatment difference | ||||||||||||
Point estimate |
-0.61
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
-0.82 | ||||||||||||
upper limit |
-0.4 | ||||||||||||
Notes [1] - Superiority of liraglutide over sitagliptin would be concluded if the 95% CI for the treatment difference was entirely below 0%. |
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End point title |
Change in body weight | ||||||||||||
End point description |
Change from baseline in body weight was analysed after 26 weeks of treatment. Analysis population set: full analysis set (FAS); all randomised subjects receiving at least one dose of any of the trial products. Missing values were imputed using MMRM.
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End point type |
Secondary
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End point timeframe |
From baseline to Week 26
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Statistical analysis title |
Statistical Analysis 2 | ||||||||||||
Statistical analysis description |
Change in body weight from baseline to week 26 was analysed using MMRM, with treatment, baseline HbA1c level (≤ 8.5% and > 8.5%), metformin dose (<1500 mg/day and ≥1500 mg/day), the interaction between baseline HbA1c level and metformin dose, and country as factors and the body weight at baseline as a covariate and all variables nested within week as a factor.
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Comparison groups |
Liraglutide v Sitagliptin
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Number of subjects included in analysis |
392
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||
P-value |
< 0.0001 [2] | ||||||||||||
Method |
Mixed models analysis | ||||||||||||
Parameter type |
Treatment difference | ||||||||||||
Point estimate |
-1.67
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
-2.34 | ||||||||||||
upper limit |
-0.99 | ||||||||||||
Notes [2] - Superiority of liraglutide was concluded when 95% CI for the treatment difference for change from baseline in body weight after 26 weeks was entirely below 0%, implying that the 2-sided p-value for the hypothesis of no treatment difference was < 5% . |
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End point title |
Change in fasting plasma glucose | ||||||||||||
End point description |
Change from baseline in fasting blood glucose was analysed after 26 weeks of treatment. Analysis population set: full analysis set (FAS); all randomised subjects receiving at least one dose of any of the trial products. Missing values were imputed using MMRM.
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End point type |
Secondary
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End point timeframe |
From baseline to Week 26
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No statistical analyses for this end point |
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End point title |
Change in fasting blood lipids | ||||||||||||||||||||||||||||||
End point description |
Ratio to baseline in fasting blood lipids (total cholesterol, low density lipoprotein [LDL], very low density lipoprotein [VLDL], high density lipoprotein [HDL], triglycerides, and free fatty acids) were analysed after 26 weeks of treatment. Analysis population set: full analysis set; all randomised subjects receiving at least one dose of any of the trial products. Missing values were imputed using MMRM. Here we are presenting ratio to baseline data.
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End point type |
Secondary
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End point timeframe |
From baseline to Week 26
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Notes [3] - For Free Fatty Acids 154 subjects were analysed. [4] - For Free Fatty Acids 150 subjects were analysed. |
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No statistical analyses for this end point |
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End point title |
Change in systolic blood pressure and diastolic blood pressure | ||||||||||||||||||
End point description |
Change from baseline in systolic blood pressure and diastolic blood pressure were analysed after 26 weeks of treatment. Analysis population set: full analysis set; all randomised subjects receiving at least one dose of any of the trial products. Missing values were imputed using MMRM.
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End point type |
Secondary
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End point timeframe |
From baseline to Week 26
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No statistical analyses for this end point |
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End point title |
Subjects who achieve HbA1c <7.0% (53 mmol/mol) (American Diabetes Association target) | ||||||||||||||||||
End point description |
Number of subjects who achieve HbA1c <7.0% were analysed after 26 weeks of treatment. Analysis population set: full analysis set; all randomised subjects receiving at least one dose of any of the trial products. Missing values were imputed using MMRM.
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End point type |
Secondary
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End point timeframe |
After 26 weeks of treatment
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No statistical analyses for this end point |
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End point title |
Number of treatment emergent adverse events | |||||||||
End point description |
A treatment emergent adverse event (TEAE) was defined as an event that had an onset date (or increase in severity) on or after the first day of exposure to randomised treatment and no later than 7 days after the last day of randomised treatment. The number of TEAEs was recorded during 26 weeks of treatment plus a one -week of follow-up. Number of Analysis population set: safety analysis set; all randomised subjects receiving at least one dose of any of the trial products.
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End point type |
Secondary
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End point timeframe |
During 26 weeks of treatment plus one week of follow-up period.
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No statistical analyses for this end point |
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Adverse events information
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Timeframe for reporting adverse events |
27 weeks (26 weeks of treatment period + 1 week follow-up)
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Adverse event reporting additional description |
Adverse events were collected for safety analysis set that included all subjects who received at least one dose of any of the trial products.
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Assessment type |
Systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
18
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Reporting groups
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Reporting group title |
Sitagliptin
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Reporting group description |
Subjects in this arm received sitagliptin + metformin + liraglutide placebo for a duration of 26 weeks of treatment (a 3−4 week dose escalation period followed by a maintenance period). | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Liraglutide
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Reporting group description |
Subjects in this arm received liraglutide + metformin + sitagliptin placebo for a duration of 26 weeks and more (a 3−4 week dose escalation period followed by a maintenance period). | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 5% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? Yes | |||
Date |
Amendment |
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30 Sep 2013 |
Global Amendment: Storage condition description for sitagliptin and placebo has been updated to reflect the current storage conditions. Minor changes in several sections have been made in to order to ensure clarity and alignment across trials.
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Interruptions (globally) |
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Were there any global interruptions to the trial? No | |||
Limitations and caveats |
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Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
None reported |