Clinical Trial Results:
A Phase III, Multicenter, Randomized, Double-Blind, Active-Comparator Controlled Clinical Trial to Study the Safety and Efficacy of the Addition of Sitagliptin Compared with the Addition of Dapagliflozin in Subjects with Type 2 Diabetes Mellitus and Mild Renal Impairment Who Have Inadequate Glycemic Control on Metformin With or Without a Sulfonylurea
Summary
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EudraCT number |
2014-005525-13 |
Trial protocol |
LT LV FI IE EE HU ES GB |
Global end of trial date |
10 Oct 2017
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Results information
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Results version number |
v1(current) |
This version publication date |
04 Oct 2018
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First version publication date |
04 Oct 2018
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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 |
0431-838
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT02532855 | ||
WHO universal trial number (UTN) |
- | ||
Other trial identifiers |
Merck Protocol Number: MK-0431-838 | ||
Sponsors
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Sponsor organisation name |
Merck Sharp & Dohme Corp.
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Sponsor organisation address |
2000 Galloping Hill Road, Kenilworth, NJ, United States, 07033
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Public contact |
Clinical Trials Disclosure, Merck Sharp & Dohme Corp., ClinicalTrialsDisclosure@merck.com
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Scientific contact |
Clinical Trials Disclosure, Merck Sharp & Dohme Corp., ClinicalTrialsDisclosure@merck.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 |
10 Oct 2017
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Is this the analysis of the primary completion data? |
No
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Global end of trial reached? |
Yes
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Global end of trial date |
10 Oct 2017
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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 |
The purpose of the study is to assess the effect of the addition of sitagliptin to metformin with or without a sulfonylurea compared with the addition of dapagliflozin to metformin with or without a sulfonylurea on hemoglobin A1c (A1C) over 24 weeks of treatment as well as the overall safety and tolerability of sitagliptin in comparison to that of dapagliflozin after 24 weeks of treatment. The primary hypothesis is that the change from baseline in A1C in participants treated with the addition of sitagliptin is non-inferior compared to that in participants treated with the addition of dapagliflozin after 24 weeks of treatment.
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Protection of trial subjects |
This study was conducted in conformance with Good Clinical Practice standards and applicable country and/or local statutes and regulations regarding ethical committee review, informed consent, and the protection of human subjects participating in biomedical research.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
20 Oct 2015
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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 |
Argentina: 32
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Country: Number of subjects enrolled |
Brazil: 23
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Country: Number of subjects enrolled |
Canada: 16
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Country: Number of subjects enrolled |
Australia: 10
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Country: Number of subjects enrolled |
Colombia: 27
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Country: Number of subjects enrolled |
Estonia: 16
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Country: Number of subjects enrolled |
Finland: 4
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Country: Number of subjects enrolled |
Germany: 13
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Country: Number of subjects enrolled |
Hungary: 36
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Country: Number of subjects enrolled |
Ireland: 3
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Country: Number of subjects enrolled |
Korea, Republic of: 6
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Country: Number of subjects enrolled |
Latvia: 17
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Country: Number of subjects enrolled |
Lithuania: 21
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Country: Number of subjects enrolled |
Mexico: 51
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Country: Number of subjects enrolled |
New Zealand: 19
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Country: Number of subjects enrolled |
Norway: 18
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Country: Number of subjects enrolled |
Peru: 11
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Country: Number of subjects enrolled |
Romania: 27
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Country: Number of subjects enrolled |
Russian Federation: 68
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Country: Number of subjects enrolled |
South Africa: 22
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Country: Number of subjects enrolled |
Spain: 15
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Country: Number of subjects enrolled |
United Kingdom: 9
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Country: Number of subjects enrolled |
United States: 150
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Worldwide total number of subjects |
614
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EEA total number of subjects |
179
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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) |
203
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From 65 to 84 years |
407
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85 years and over |
4
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Recruitment
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Recruitment details |
This study was conducted at 183 medical centers in 24 countries. | ||||||||||||||||||
Pre-assignment
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Screening details |
Male and female participants, 25 years or older, with Type 2 diabetes mellitus (T2DM) and mild renal impairment on metformin alone or in combination with a sulfonylurea (SU) agent were enrolled in this trial. | ||||||||||||||||||
Period 1
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Period 1 title |
Pre-Treatment 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 | ||||||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Sitagliptin | ||||||||||||||||||
Arm description |
Participants receive sitagliptin 100 mg once daily plus matching placebo for dapagliflozin 5 mg once daily for 4 weeks followed by sitagliptin 100 mg once daily plus matching placebo for dapagliflozin 10 mg once daily for 20 weeks. Participants continue pre-study metformin (at least 1500 mg daily) alone or in combination with a sulfonylurea agent (at a dose of ≥ 50% maximum labeled dose in the country of the investigational site) throughout the duration of the study. | ||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||
Investigational medicinal product name |
Sitagliptin
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Investigational medicinal product code |
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Other name |
MK-0431
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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, 100 mg, once daily (q.d.), oral, for 24 weeks
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Investigational medicinal product name |
Matching placebo for dapagliflozin 5 mg
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Investigational medicinal product code |
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Other name |
|||||||||||||||||||
Pharmaceutical forms |
Capsule
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Routes of administration |
Oral use
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Dosage and administration details |
Placebo, q.d. for 4 weeks (Day 1 to Week 4)
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Investigational medicinal product name |
Matching placebo for dapagliflozin 10 mg
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Capsule
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Routes of administration |
Oral use
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Dosage and administration details |
Placebo, q.d. for 20 weeks (Week 4 to Week 24)
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Investigational medicinal product name |
Metformin
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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 |
Metformin, oral tablet(s), at least 1500 mg daily
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Investigational medicinal product name |
Sulfonylurea agent
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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 |
Sulfonylurea agent, dose required to be at least 50% of maximum labeled dose, consistent with near maximum efficacy of the sulfonylurea agent.
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Arm title
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Dapagliflozin | ||||||||||||||||||
Arm description |
Participants receive dapagliflozin 5 mg once daily plus matching placebo for sitagliptin 100 mg once daily for 4 weeks followed by dapagliflozin 10 mg once daily plus matching placebo for sitagliptin 100 mg once daily for 20 weeks. Participants continue pre-study metformin (at least 1500 mg daily) alone or in combination with a sulfonylurea agent (at a dose of ≥ 50% maximum labeled dose in the country of the investigational site) throughout the duration of the study. | ||||||||||||||||||
Arm type |
Active comparator | ||||||||||||||||||
Investigational medicinal product name |
Dapagliflozin 10 mg group
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Capsule
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Routes of administration |
Oral use
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Dosage and administration details |
Dapagliflozin, 5 mg, q.d., for 4 weeks (Day 1 to Week 4)
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Investigational medicinal product name |
Dapagliflozin 10 mg
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Capsule
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Routes of administration |
Oral use
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Dosage and administration details |
Dapagliflozin 10 mg, oral, q.d. for 20 weeks (Week 4 to Week 24)
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Investigational medicinal product name |
Matching placebo for sitagliptin 100 mg
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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 |
Placebo, q.d. for 24 weeks
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Investigational medicinal product name |
Metformin
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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 |
Metformin, oral tablet(s), at least 1500 mg daily
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Investigational medicinal product name |
Sulfonylurea agent
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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 |
Sulfonylurea agent, dose required to be at least 50% of maximum labeled dose, consistent with near maximum efficacy of the sulfonylurea agent.
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Period 2
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Period 2 title |
Treatment Period
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Is this the baseline period? |
No | ||||||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Double blind | ||||||||||||||||||
Roles blinded |
Subject, Investigator | ||||||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Sitagliptin | ||||||||||||||||||
Arm description |
Participants receive sitagliptin 100 mg once daily plus matching placebo for dapagliflozin 5 mg once daily for 4 weeks followed by sitagliptin 100 mg once daily plus matching placebo for dapagliflozin 10 mg once daily for 20 weeks. Participants continue pre-study metformin (at least 1500 mg daily) alone or in combination with a sulfonylurea agent (at a dose of ≥ 50% maximum labeled dose in the country of the investigational site) throughout the duration of the study. | ||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||
Investigational medicinal product name |
Sitagliptin
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Investigational medicinal product code |
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Other name |
MK-0431
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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, 100 mg once daily (q.d.), oral, for 24 weeks
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Investigational medicinal product name |
Matching placebo for dapagliflozin 5 mg
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Capsule
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Routes of administration |
Oral use
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Dosage and administration details |
Placebo, q.d. for 4 weeks (Day 1 to Week 4)
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Investigational medicinal product name |
Matching placebo for dapagliflozin 10 mg
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Capsule
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Routes of administration |
Oral use
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Dosage and administration details |
Placebo, q.d. for 20 weeks (Week 4 to Week 24)
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Investigational medicinal product name |
Metformin
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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 |
Metformin, oral tablet(s), at least 1500 mg daily
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Investigational medicinal product name |
Sulfonylurea agent
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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 |
Sulfonylurea agent, dose required to be at least 50% of maximum labeled dose, consistent with near maximum efficacy of the sulfonylurea agent.
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Arm title
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Dapagliflozin | ||||||||||||||||||
Arm description |
Participants receive dapagliflozin 5 mg once daily plus matching placebo for sitagliptin 100 mg once daily for 4 weeks followed by dapagliflozin 10 mg once daily plus matching placebo for sitagliptin 100 mg once daily for 20 weeks. Participants continue pre-study metformin (at least 1500 mg daily) alone or in combination with a sulfonylurea agent (at a dose of ≥ 50% maximum labeled dose in the country of the investigational site) throughout the duration of the study. | ||||||||||||||||||
Arm type |
Active comparator | ||||||||||||||||||
Investigational medicinal product name |
Dapagliflozin 10 mg group
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Capsule
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Routes of administration |
Oral use
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Dosage and administration details |
Dapagliflozin 5 mg, q.d., for 4 weeks (Day 1 to Week 4)
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Investigational medicinal product name |
Dapagliflozin 10 mg
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Capsule
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Routes of administration |
Oral use
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Dosage and administration details |
Dapagliflozin 10 mg, oral, q.d. for 20 weeks (Week 4 to Week 24)
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Investigational medicinal product name |
Matching placebo for sitagliptin 100 mg
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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 |
Placebo, q.d. for 24 weeks
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Investigational medicinal product name |
Metformin
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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 |
Metformin, oral tablet(s), at least 1500 mg daily
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Investigational medicinal product name |
Sulfonylurea agent
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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 |
Sulfonylurea agent, dose required to be at least 50% of maximum labeled dose, consistent with near maximum efficacy of the sulfonylurea agent.
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Baseline characteristics reporting groups
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Reporting group title |
Sitagliptin
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Reporting group description |
Participants receive sitagliptin 100 mg once daily plus matching placebo for dapagliflozin 5 mg once daily for 4 weeks followed by sitagliptin 100 mg once daily plus matching placebo for dapagliflozin 10 mg once daily for 20 weeks. Participants continue pre-study metformin (at least 1500 mg daily) alone or in combination with a sulfonylurea agent (at a dose of ≥ 50% maximum labeled dose in the country of the investigational site) throughout the duration of the study. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Dapagliflozin
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Reporting group description |
Participants receive dapagliflozin 5 mg once daily plus matching placebo for sitagliptin 100 mg once daily for 4 weeks followed by dapagliflozin 10 mg once daily plus matching placebo for sitagliptin 100 mg once daily for 20 weeks. Participants continue pre-study metformin (at least 1500 mg daily) alone or in combination with a sulfonylurea agent (at a dose of ≥ 50% maximum labeled dose in the country of the investigational site) throughout the duration of the study. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Sitagliptin
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Reporting group description |
Participants receive sitagliptin 100 mg once daily plus matching placebo for dapagliflozin 5 mg once daily for 4 weeks followed by sitagliptin 100 mg once daily plus matching placebo for dapagliflozin 10 mg once daily for 20 weeks. Participants continue pre-study metformin (at least 1500 mg daily) alone or in combination with a sulfonylurea agent (at a dose of ≥ 50% maximum labeled dose in the country of the investigational site) throughout the duration of the study. | ||
Reporting group title |
Dapagliflozin
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Reporting group description |
Participants receive dapagliflozin 5 mg once daily plus matching placebo for sitagliptin 100 mg once daily for 4 weeks followed by dapagliflozin 10 mg once daily plus matching placebo for sitagliptin 100 mg once daily for 20 weeks. Participants continue pre-study metformin (at least 1500 mg daily) alone or in combination with a sulfonylurea agent (at a dose of ≥ 50% maximum labeled dose in the country of the investigational site) throughout the duration of the study. | ||
Reporting group title |
Sitagliptin
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Reporting group description |
Participants receive sitagliptin 100 mg once daily plus matching placebo for dapagliflozin 5 mg once daily for 4 weeks followed by sitagliptin 100 mg once daily plus matching placebo for dapagliflozin 10 mg once daily for 20 weeks. Participants continue pre-study metformin (at least 1500 mg daily) alone or in combination with a sulfonylurea agent (at a dose of ≥ 50% maximum labeled dose in the country of the investigational site) throughout the duration of the study. | ||
Reporting group title |
Dapagliflozin
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Reporting group description |
Participants receive dapagliflozin 5 mg once daily plus matching placebo for sitagliptin 100 mg once daily for 4 weeks followed by dapagliflozin 10 mg once daily plus matching placebo for sitagliptin 100 mg once daily for 20 weeks. Participants continue pre-study metformin (at least 1500 mg daily) alone or in combination with a sulfonylurea agent (at a dose of ≥ 50% maximum labeled dose in the country of the investigational site) throughout the duration of the study. |
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End point title |
Change from Baseline in A1C at Week 24 | ||||||||||||
End point description |
A1C is blood marker used to report average blood glucose levels over prolonged periods of time. Percentage A1C is the ratio of glycated hemoglobin to total hemoglobin x 100. Thus, this change from baseline reflects the Week 24 A1C minus the Week 0 A1C. The analysis population included all randomized and treated participants who had at least one observation for the analysis endpoint, at baseline or subsequent to at least one dose of study treatment.
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End point type |
Primary
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End point timeframe |
Baseline and Week 24
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|||||||||||||
Statistical analysis title |
Difference in the LSM (sitagliptin-dapagliflozin) | ||||||||||||
Statistical analysis description |
Based on a Longitudinal Data Analysis (LDA) model including terms for treatment, time, background antihyperglycemic agent (AHA), the interaction of time and background AHA, and the interaction of time by treatment. Least squares means (LSM)
|
||||||||||||
Comparison groups |
Sitagliptin v Dapagliflozin
|
||||||||||||
Number of subjects included in analysis |
613
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
non-inferiority [1] | ||||||||||||
Method |
|||||||||||||
Parameter type |
Difference in the LSM (Sit.-Dap.) | ||||||||||||
Point estimate |
-0.15
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
-0.26 | ||||||||||||
upper limit |
-0.04 | ||||||||||||
Notes [1] - For the primary hypothesis, sitagliptin will be considered non-inferior to dapagliflozin if the upper bound of the two-sided 95% confidence interval (CI) of the between-group difference in least squares mean change from baseline in A1C (sitagliptin minus dapagliflozin) is less than 0.3% (the non-inferiority margin). |
|||||||||||||
Statistical analysis title |
Difference in the LSM (Sit. - Dap.) | ||||||||||||
Statistical analysis description |
Based on a LDA model including terms for treatment, time, background AHA, the interaction of time and background AHA, and the interaction of time by treatment.
|
||||||||||||
Comparison groups |
Sitagliptin v Dapagliflozin
|
||||||||||||
Number of subjects included in analysis |
613
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
P-value |
= 0.006 | ||||||||||||
Method |
Longitudinal data analysis | ||||||||||||
Parameter type |
Difference in the LSM (Sit. - Dap.) | ||||||||||||
Point estimate |
-0.15
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
-0.26 | ||||||||||||
upper limit |
-0.04 |
|
|||||||||||||
End point title |
Percentage of Participants Who Experienced One or More Adverse Events | ||||||||||||
End point description |
An adverse event (AE) is any untoward medical occurrence in a patient or clinical investigation participant administered a pharmaceutical product. The AE does not have to have a causal relationship with this treatment. The AE can include any unfavourable and unintended sign, symptom, or disease or any worsening (change in frequency and/or intensity) of a preexisting condition that is temporally associated with the use of the pharmaceutical product. The population analyzed included all randomized and treated participants.
|
||||||||||||
End point type |
Primary
|
||||||||||||
End point timeframe |
Up to 26 weeks
|
||||||||||||
|
|||||||||||||
Statistical analysis title |
Difference in % (Sit. - Dap.) | ||||||||||||
Statistical analysis description |
Based on Miettinen & Nurminen method.
|
||||||||||||
Comparison groups |
Sitagliptin v Dapagliflozin
|
||||||||||||
Number of subjects included in analysis |
613
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
other | ||||||||||||
Method |
|||||||||||||
Parameter type |
Difference in % (Sit. - Dap.) | ||||||||||||
Point estimate |
-2.8
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
-10.7 | ||||||||||||
upper limit |
5.1 |
|
|||||||||||||
End point title |
Percentage of Participants Who Discontinued Study Drug Due to an AE | ||||||||||||
End point description |
An adverse event (AE) is any untoward medical occurrence in a patient or clinical investigation participant administered a pharmaceutical product. The AE does not have to have a causal relationship with this treatment. The AE can include any unfavourable and unintended sign, symptom, or disease or any worsening (change in frequency and/or intensity) of a preexisting condition that is temporally associated with the use of the pharmaceutical product. The analysis population included all randomized and treated participants.
|
||||||||||||
End point type |
Primary
|
||||||||||||
End point timeframe |
Up to 24 weeks
|
||||||||||||
|
|||||||||||||
Statistical analysis title |
Difference in % (Sit. - Dap.) | ||||||||||||
Statistical analysis description |
Based on Miettinen & Nurminen method.
|
||||||||||||
Comparison groups |
Sitagliptin v Dapagliflozin
|
||||||||||||
Number of subjects included in analysis |
613
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
other | ||||||||||||
Method |
|||||||||||||
Parameter type |
Difference in % (Sit. - Dap.) | ||||||||||||
Point estimate |
0
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
-3 | ||||||||||||
upper limit |
3 |
|
|||||||||||||
End point title |
Change from Baseline in Incremental 2-hour (2-hr) Postprandial Glucose Excursion (PPGE) at Week 24 | ||||||||||||
End point description |
The 2hr PPGE is defined as T-120 minus T-0 for each participant: change from baseline PPGE = Week 24 mean (T-120 minus T-0) minus Baseline mean (T-120 minus T-0). The 2-point MMTT measured values at T-0 and T-120 while the 3-point MMTT measured values at T-0, T-60, and T-120: although only a subset of participants had the 3-point MMTT performed, all participants had a T-0 and T-120 time point. A negative (-) change from baseline to Week 24 indicates better control of postprandial glucose. The analysis population consisted of all randomized and treated participants who underwent MMTT for the analysis endpoint, had both baseline and Week 24 endpoint measurements, without: drug compliance <75%, use of prohibited AHA medications or pharmacologic doses of corticosteroids or incorrect double-blind study drug or a change in metformin or sulfonylurea dose.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
Immediately before and 120 minutes after the standard meal at Baseline and Week 24
|
||||||||||||
|
|||||||||||||
Statistical analysis title |
Difference in the LSM Change from Baseline (CFB) | ||||||||||||
Statistical analysis description |
Based on a LDA model including terms for treatment, time, background AHA, the interaction of time and background AHA, and the interaction of time by treatment.
|
||||||||||||
Comparison groups |
Sitagliptin v Dapagliflozin
|
||||||||||||
Number of subjects included in analysis |
594
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
P-value |
= 0.138 | ||||||||||||
Method |
LDA | ||||||||||||
Parameter type |
Difference in LSM (Sit. - Dap.) | ||||||||||||
Point estimate |
-5.7
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
-13.3 | ||||||||||||
upper limit |
1.8 |
|
|||||||||||||
End point title |
Change from Baseline in 2-hr Postprandial Glucose (PPG) at Week 24 | ||||||||||||
End point description |
The 2hr change from baseline in mean PPG = Week 24 mean T-120 glucose minus Baseline mean T-120 glucose) and shows each drugs impact on PPG. The 2-point MMTT measured values at T-0 and T-120 while the 3-point MMTT measured values at T-0, T-60, and T-120: although only a subset of the study had the 3-point MMTT performed, all participants had a T-0 and T-120 time point. A negative (-) change from baseline to Week 24 indicates better control of postprandial glucose. The analysis population consisted of all randomized and treated participants who underwent MMTT for the analysis endpoint, had both baseline and Week 24 endpoint measurements, without: drug compliance <75%, use of prohibited AHA medications or pharmacologic doses of corticosteroids or incorrect double blind study drug or a change in metformin or sulfonylurea dose.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
Immediately before and 120 minutes after the standard meal at Baseline and Week 24
|
||||||||||||
|
|||||||||||||
Statistical analysis title |
Difference in the LSM CFB at Week 24 | ||||||||||||
Statistical analysis description |
The ANCOVA model included terms for treatment, background AHA, and the baseline 2-hour PPG value as a covariate.
|
||||||||||||
Comparison groups |
Sitagliptin v Dapagliflozin
|
||||||||||||
Number of subjects included in analysis |
506
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
Method |
|||||||||||||
Parameter type |
Difference in the LSM (Sit. - Dap.) | ||||||||||||
Point estimate |
-3.4
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
-12.1 | ||||||||||||
upper limit |
5.3 |
|
|||||||||||||
End point title |
Change from Baseline in Glucagon Area Under the Curve (AUC0-120 minutes) at Week 24 | ||||||||||||
End point description |
Participants who underwent the 3-point MMTT had a first blood sample (T=0 minutes) drawn immediately prior to a standard meal and 60 and 120 minutes after the standard meal. The AUC curve was generated with the 3 time points. Change in postprandial glucagon AUC was calculated from the glucagon AUC over the first 120 minutes following the morning meal at baseline minus glucagon AUC over the first 120 minutes following the morning meal at Week 24. A negative (-) change from baseline to Week 24 indicates better control of postprandial glucose. All randomized and treated participants who underwent MMTT for the analysis endpoint, had both baseline and Week 24 endpoint measurements, without: drug compliance <75%, use of prohibited AHA medications or pharmacologic doses of corticosteroids or incorrect double-blind study drug or a change in metformin or sulfonylurea dose.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
Immediately before and 60 and 120 minutes after the standard meal at Baseline and Week 24
|
||||||||||||
|
|||||||||||||
Statistical analysis title |
Difference in LSM (Sit. - Dap.) | ||||||||||||
Statistical analysis description |
The ANCOVA model included terms for treatment, background AHA, and the baseline glucagon AUC value as a covariate.
|
||||||||||||
Comparison groups |
Sitagliptin v Dapagliflozin
|
||||||||||||
Number of subjects included in analysis |
173
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
Method |
|||||||||||||
Parameter type |
Difference in the LSM (Sit. - Dap.) | ||||||||||||
Point estimate |
-4.4
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
-10.1 | ||||||||||||
upper limit |
1.4 |
|
|||||||||||||
End point title |
Change from Baseline in Insulin AUC0-120 minutes at Week 24 | ||||||||||||
End point description |
Participants who underwent the 3-point MMTT had a first blood sample (T=0 minutes) drawn immediately prior to a standard meal and 60 and 120 minutes after the standard meal. The AUC curve was generated with the 3 time points. Change in postprandial insulin AUC was calculated from the insulin AUC over the first 120 minutes following the morning meal at baseline minus insulin AUC over the first 120 minutes following the morning meal at Week 24. A negative (-) change from baseline to Week 24 indicates better control of postprandial glucose. The analysis population included all randomized and treated participants who underwent MMTT for the analysis endpoint, had both baseline and Week 24 endpoint measurements, without: drug compliance <75%, use of prohibited AHA medications or pharmacologic doses of corticosteroids or incorrect double-blind study drug or a change in metformin or sulfonylurea dose.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
Immediately before and 60 and 120 minutes after the standard meal at Baseline and Week 24
|
||||||||||||
|
|||||||||||||
Statistical analysis title |
Difference in the LSM (Sit. - Dap.) | ||||||||||||
Statistical analysis description |
The ANCOVA model included terms for treatment, background AHA, and the baseline insulin AUC value as a covariate.
|
||||||||||||
Comparison groups |
Sitagliptin v Dapagliflozin
|
||||||||||||
Number of subjects included in analysis |
190
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
Method |
|||||||||||||
Parameter type |
Difference in the LSM (Sit. - Dap.) | ||||||||||||
Point estimate |
4.9
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
-12.2 | ||||||||||||
upper limit |
22 |
|
|||||||||||||
End point title |
Change from Baseline in Postprandial Insulin AUC0-120 minutes to Glucagon AUC0-120 minutes Ratio at Week 24 | ||||||||||||
End point description |
Participants who underwent the 3-point MMTT had a first blood sample (T=0 minutes) drawn immediately prior to a standard meal and 60 and 120 minutes after the standard meal. The AUC curve was generated with the 3 time points. The endpoint was calculated from the ratio of (insulin AUC / glucagon AUC) over the first 120 minutes following the morning meal at baseline minus AUC over the first 120 minutes following the morning meal at Week 24. A negative (-) change from baseline to Week 24 indicates better control of postprandial glucose. The analysis population consisted of all randomized and treated participants who underwent MMTT for the analysis endpoint, had both baseline and Week 24 endpoint measurements, without: drug compliance <75%, use of prohibited AHA medications or pharmacologic doses of corticosteroids or incorrect double-blind study drug or a change in metformin or sulfonylurea dose.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
Immediately before and 60 and 120 minutes after the standard meal at Baseline and Week 24
|
||||||||||||
|
|||||||||||||
Statistical analysis title |
Difference in LSM (Sit. - Dap.) | ||||||||||||
Statistical analysis description |
The ANCOVA model included terms for treatment, background AHA, and the baseline insulin AUC to glucagon AUC ratio value as a covariate.
|
||||||||||||
Comparison groups |
Sitagliptin v Dapagliflozin
|
||||||||||||
Number of subjects included in analysis |
164
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
Method |
|||||||||||||
Parameter type |
Difference in the LSM (Sit. - Dap.) | ||||||||||||
Point estimate |
0.6
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
-0.1 | ||||||||||||
upper limit |
1.3 |
|
|||||||||||||
End point title |
Percentage of Participants with A1C <7% (53 mmol/mol) at Week 24. | ||||||||||||
End point description |
A1C is blood marker used to report average blood glucose levels over prolonged periods of time and is reported as a percentage (%). Percentage A1C is the ratio of glycated hemoglobin to total hemoglobin x 100. The percentage of participants was estimated using standard multiple imputation techniques from cLDA model including terms for treatment, time, background AHA, the interaction of time and background AHA, and the interaction of time by treatment with the constraint that the mean baseline is the same for all treatment groups. The analysis population included all randomized and treated participants who had at least one observation for the analysis endpoint, at baseline or subsequent to at least one dose of study treatment.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
Week 24
|
||||||||||||
|
|||||||||||||
Statistical analysis title |
Difference in % (Sitagliptin - Dapagliflozin) | ||||||||||||
Statistical analysis description |
Miettinen and Nurminen (M&N) method with multiple imputation from a LDA Model. The percentage of participants was estimated using standard multiple imputation techniques from LDA model including terms for treatment, time, background AHA, the interaction of time and background AHA, and the interaction of time by treatment.
|
||||||||||||
Comparison groups |
Sitagliptin v Dapagliflozin
|
||||||||||||
Number of subjects included in analysis |
613
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
other | ||||||||||||
Method |
|||||||||||||
Parameter type |
Difference in % (Sit. - Dap.) | ||||||||||||
Point estimate |
15.5
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
7.7 | ||||||||||||
upper limit |
23.2 |
|
|||||||||||||
End point title |
Change from Baseline in Fasting Plasma Glucose (FPG) at Week 24 | ||||||||||||
End point description |
Blood glucose was measured on a fasting basis. Blood was drawn at predose on Day 1 and after 24 weeks of treatment to determine change in plasma glucose levels (i.e., FPG at Week 24 minus FPG at Week 0). The analysis population included all randomized and treated participants who had at least one observation for the analysis endpoint, at baseline or subsequent to at least one dose of study treatment.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
Baseline and Week 24
|
||||||||||||
|
|||||||||||||
Statistical analysis title |
Difference in the LSM CFB at Week 24 | ||||||||||||
Statistical analysis description |
Difference in LSM (Sitagliptin - Dapagliflozin) change from Baseline at Week 24 are compared. Based on a LDA model including terms for treatment, time, background AHA, the interaction of time and background AHA, and the interaction of time by treatment.
|
||||||||||||
Comparison groups |
Sitagliptin v Dapagliflozin
|
||||||||||||
Number of subjects included in analysis |
613
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
other | ||||||||||||
Method |
|||||||||||||
Parameter type |
Difference in the LSM (Sit. - Dap.) | ||||||||||||
Point estimate |
3.5
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
-1.2 | ||||||||||||
upper limit |
8.3 |
|
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Adverse events information
|
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Timeframe for reporting adverse events |
Up to 26 weeks
|
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Adverse event reporting additional description |
The population analyzed included all randomized and treated participants.
|
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Assessment type |
Systematic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
|
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Dictionary name |
MedDRA | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
20.1
|
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Reporting groups
|
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Reporting group title |
Dapagliflozin
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Reporting group description |
- | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Sitagliptin
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Reporting group description |
- | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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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22 Mar 2016 |
Amendment 02: The primary reason for amendment was to increase participant enrollment by expansion of background AHAs to include patients on either metformin monotherapy or metformin in dual combination with a sulfonylurea agent and the A1C upper limit to 9.5%. |
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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 |