Peripheral Vascular REactivity and Muscular Oxygenation in Diabetes Mellitus (PREMOD)
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|ClinicalTrials.gov Identifier: NCT04226820|
Recruitment Status : Not yet recruiting
First Posted : January 13, 2020
Last Update Posted : January 13, 2020
Oxygen is required for an optimal muscle function. In patients with diabetes mellitus, hyperglycemia can cause vascular complications. The endothelium (inter layer of the blood vessels) can be damaged leading to a reduced oxygen flow towards the muscle cells. Besides, it is possible that mitochondrial dysfunction is occuring leading to reduced extraction of oxygen.
Both conditions will lead to a reduced flow of oxygen towards the muscle and this can have impact on the production of energy necessary for optimal functioning.
In this study, the investigators will examine the functionality of the blood vessels (1) and the uptake of oxygen into the muscles (2) in patients with diabetes mellitus type 1 and type 2 (with and without vascular complications) compared to healthy persons.
|Condition or disease||Intervention/treatment||Phase|
|Diabetes Mellitus Vascular Complications Mitochondrial Diseases||Other: examination: blood pressure assessment Other: examination: Flow Mediated Dilatation (FMD)-test Other: examination: handgrip exercise test with Near infrared spectroscopy (NIRS)-monitoring Other: examination: measurement of glucose by a finger prick||Not Applicable|
The investigators plan to recruit in total 125 participants who will be divided into 3 main groups: (I) diabetes mellitus type 1 (with (a) or without (b) vascular complications), (II) diabetes mellitus type 2 (with (a) or without (b) vascular complications), and (III) healthy persons. Diabetes mellitus will be defined by the guidelines of the American Diabetes Association (ADA).
The examinations for this study consist of a blood pressure assessment, Flow Mediated Dilatation (FMD)-measurement, and a handgrip exercise test. The protocol will take approximately 2 hours.
The investigator who performs the FMD-test followed a course and passed thorough evaluation.
The blood pressure assessment will be continuously for 20 minutes to avoid large bias.
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||125 participants|
|Intervention Model:||Single Group Assignment|
|Intervention Model Description:||Participants are divided into 3 groups based on their diagnosis: diabetes mellitus type 1, diabetes mellitus type 2, and healthy persons. Each participant (independent of group) will have the same examinations. There is no retesting of the same participant in other conditions.|
|Masking:||None (Open Label)|
|Masking Description:||There is no masking because the participant knows his diagnosis. Besides, the investigator checks the blood sugar at different times during the examinations, so also the investigator is not blinded. In this study, blinding would have no additional value.|
|Official Title:||Peripheral Vascular REactivity and Muscular Oxygenation in Diabetes Mellitus|
|Estimated Study Start Date :||February 2020|
|Estimated Primary Completion Date :||February 2021|
|Estimated Study Completion Date :||May 2021|
Participants are divided into 3 groups based on their diagnosis: diabetes mellitus type 1, diabetes mellitus type 2, and healthy persons. Each participant (independent of group) will have the same examinations. There is no retesting of the same participant in other conditions.
Other: examination: blood pressure assessment
blood pressure measurement for 30 minutes, dominant side
Other: examination: Flow Mediated Dilatation (FMD)-test
Flow Mediated Dilatation (FMD)-test for measuring the endothelial functionality
Other: examination: handgrip exercise test with Near infrared spectroscopy (NIRS)-monitoring
participant does a maximal exercise test by a handgrip strength test with simultaneously monitoring of the muscular oxygenation
Other: examination: measurement of glucose by a finger prick
follow-up of blood sugar (glucose) during examinations by a finger prick
- Flow Mediated Dilatation (FMD)-test [ Time Frame: 20 minutes, at study-day (participants have to come only once, no follow-up, no re-testing) ]flow mediated dilatation test
- Near-infrared spectroscopy during exercise [ Time Frame: 30 minutes, at study-day (participants have to come only once, no follow-up, no re-testing) ]analysis of changes in oxygenated blood during exercise
- exercise test wilt hand held dynamometer [ Time Frame: 30 minutes, at study-day (participants have to come only once, no follow-up, no re-testing) ]analysis of strength and exercise capacity
- Blood pressure analysis [ Time Frame: 20 minutes, at study-day (participants have to come only once, no follow-up, no re-testing) ]measurement of basal blood pressure (systolic and diastolic)
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04226820
|Contact: Anouk Tanghe, PhD||+32 09 332 36 email@example.com|
|Contact: Patrick Calders, Prof. dr.||+32 09 332 69 firstname.lastname@example.org|
|University Gent, Rehabilitation Sciences|
|Ghent, Oost-Vlaanderen, Belgium, 9000|
|Principal Investigator:||Samyah Shadid, Prof. dr.||University hospital of Ghent and University of Ghent|