Clinical Trial Results:
Effects of Linagliptin on Renal Endothelium Function in Patients with Type 2 Diabetes.
Summary
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EudraCT number |
2012-002278-30 |
Trial protocol |
DE |
Global end of trial date |
06 Feb 2014
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Results information
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Results version number |
v1(current) |
This version publication date |
28 Jul 2021
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First version publication date |
28 Jul 2021
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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 |
CRC2012LINA
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
- | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Universitätsklinikum Erlangen
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Sponsor organisation address |
Maximiliansplatz 2, Erlangen, Germany,
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Public contact |
Clinical Research Center, Clinical Research Center, Department of Nephrology and Hypertension, University of Erlangen-Nürnberg, 0049 91318536245, roland.schmieder@uk-erlangen.de
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Scientific contact |
Clinical Research Center, Clinical Research Center, Department of Nephrology and Hypertension, University of Erlangen-Nürnberg, 0049 91318536245, roland.schmieder@uk-erlangen.de
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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 |
18 Dec 2013
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Is this the analysis of the primary completion data? |
Yes
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Primary completion date |
18 Dec 2013
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Global end of trial reached? |
Yes
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Global end of trial date |
06 Feb 2014
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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 determine the effect of linagliptin compared to placebo on basal production and release of nitric oxide (NO) from renal vasculature, as assessed by changes of renal plasma flow due to L-NMMA infusion.
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Protection of trial subjects |
Physical examinations, vital signs, checking concomitant medication, assessment of adverse events, measurement of safety laboratory markers (including glucose levels, biochemistry, haematology and urinanalsis) were done regularly in the course of the study.
Home blood glucose measurements (Home Blood Glucose Monitoring) were performed by the study participants during the whole duration of the trial.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
02 Jul 2012
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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 |
Germany: 66
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Worldwide total number of subjects |
66
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EEA total number of subjects |
66
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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) |
53
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From 65 to 84 years |
13
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85 years and over |
0
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Recruitment
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Recruitment details |
Participants were recruited via advertising in local newspapers, by our G.P. / local network in Erlangen/Nürnberg/Fürth and by our University Outpatient Clinic. Participants were included after study physician has evaluated in- and exclusion criteria and after the participant has given his/her oral and written informed consent. | ||||||||||||||||||
Pre-assignment
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Screening details |
we screened female and male patients, aged between 18 and 70 years with type 2 diabetes, without diabetic nephropathy. Eligible patients entered a 4 week run-in/wash-out phase, if pretreated with any blood glucose lowering agent, or a 2 week run-in/wash-out phase, if not pretreated. | ||||||||||||||||||
Period 1
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Period 1 title |
Treatment Period 1 (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 | ||||||||||||||||||
Arms
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Are arms mutually exclusive |
No
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Arm title
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Linagliptin | ||||||||||||||||||
Arm description |
The study followed randomized cross-over-design, i.e. subjects underwent both treatment arms in randomized order for 4 weeks. | ||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||
Investigational medicinal product name |
Linagliptin
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Film-coated tablet
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Routes of administration |
Oral use
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Dosage and administration details |
5 mg once daily
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Arm title
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Placebo | ||||||||||||||||||
Arm description |
This study followed randomized cross-over-design, e.e. subjects underwent both treatment arms in randomized order for 4 weeks | ||||||||||||||||||
Arm type |
Placebo | ||||||||||||||||||
Investigational medicinal product name |
Placebo
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Film-coated tablet
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Routes of administration |
Oral use
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Dosage and administration details |
once daily
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Baseline characteristics reporting groups
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Reporting group title |
Treatment Period 1
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Reporting group description |
- | |||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Linagliptin
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Reporting group description |
The study followed randomized cross-over-design, i.e. subjects underwent both treatment arms in randomized order for 4 weeks. | ||
Reporting group title |
Placebo
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Reporting group description |
This study followed randomized cross-over-design, e.e. subjects underwent both treatment arms in randomized order for 4 weeks |
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End point title |
Effect of Linagliptin compared to placebo by change of renal plasma flow due to L-NMMA infusion | ||||||||||||
End point description |
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End point type |
Primary
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End point timeframe |
4 weeks
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Statistical analysis title |
effect of linagliptin on RPF compared to placebo | ||||||||||||
Comparison groups |
Linagliptin v Placebo
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Number of subjects included in analysis |
124
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Analysis specification |
Pre-specified
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Analysis type |
non-inferiority | ||||||||||||
P-value |
≤ 0.05 | ||||||||||||
Method |
t-test, 2-sided | ||||||||||||
Parameter type |
Mean difference (final values) | ||||||||||||
Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
2.5 | ||||||||||||
upper limit |
2.5 |
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End point title |
Effect of Linagliptin compared to placebo on RPF | ||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
4 weeks
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No statistical analyses for this end point |
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End point title |
Effect of Linagliptin compared to placebo on GFR | ||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
4 weeks
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No statistical analyses for this end point |
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End point title |
Effect of Linagliptin compared to placebo on RVR (renal vessel resistance) | ||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
4 weeks
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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 |
In the course of the intire study , each adverse event had to be reported on an Adverse Event Case Report Form as soon as known, in general at the subsequent study visit.
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Assessment type |
Systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
24
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Reporting groups
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Reporting group title |
all patients treated with IMP
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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? No | |||
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 |