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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03866343
Other study ID # NL63215.068.17
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date September 7, 2018
Est. completion date March 3, 2021

Study information

Verified date March 2021
Source Maastricht University Medical Center
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Current efforts to arrest the epidemic of type 2 diabetes mellitus (T2DM) have had limited success. Thus there is an urgent need for effective approaches to prevent the development of T2DM. It is widely accepted that the current epidemic is driven by an increase in global food abundance and reduced food quality, making changes in diet a key determinant of the T2DM epidemic. Dietary factors can affect cardio-metabolic health; among these factors, advanced glycation end-products (AGEs) in food are potential risk factors for insulin resistance and T2DM. AGEs are a heterogeneous group of unavoidable stable bioactive compounds. Endogenous formation of AGEs is a continuous naturally occurring process, and is the result of normal metabolism. However, increased formation of AGEs occurs during ageing and under hyperglycaemic conditions. AGEs are implicated in the development of diabetes and vascular complications. Over the past several decades, methods of food processing have changed and meals now contain excess fat and sugar and are most susceptible for the formation of AGEs. In addition, AGEs in food are highly desirable due to their profound effect on shelf life, sterility, flavour, colour, and thus food consumption. Hence, a substantial portion of AGEs are derived from exogenous sources, particularly food. These exogenous AGEs are potential risk factors for insulin resistance and the development of T2DM. The investigators recently found that dietary AGEs represent a significant source of circulating AGEs, and have similar pathogenic properties compared to their endogenous counterparts including the development of insulin resistance and T2DM. Taken together, dietary AGEs are proposed to play a pivotal role in the development and progression of T2DM and its complications. Reduction of dietary intake of AGEs may therefore be an alternative strategy to reduce the risk of vascular disease and insulin resistance. The investigators therefore hypothesize that dietary restriction of AGEs in overweight individuals improves insulin sensitivity, β-cell function, and vascular function.


Recruitment information / eligibility

Status Completed
Enrollment 82
Est. completion date March 3, 2021
Est. primary completion date March 3, 2021
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Abdominal obesity: waist circumference for men = 102 cm, and for women = 88 cm. - Aged 18 years and older - Caucasian (because of skin fluorescence and capillary microscopy measurements) Exclusion Criteria: - Diabetes (i.e. using anti-diabetic medication, fasting glucose >7.0 mmol/L, HbA1c >6.5%). - Active or history of cardiovascular disease (e.g. stroke, coronary artery disease, peripheral vascular disease, congestive heart failure, cardiac shunts, cardiac surgery, pulmonary hypertension, cardiac arrhythmias, family history of cardiac arrhythmias or sudden cardiac death) - Hyperlipidemia (defined as serum total cholesterol > 8 mmol/L or TG > 4 mmol/L) - Lipid lowering medication (e.g. statins) - Use of medication known to influence glucose metabolism, vascular function and/or lipid metabolism (e.g. statins, glucocorticosteroids, NSAID's) - Inability to stop antihypertensive medication for 13 weeks. Exclusion of higher grade hypertension (> 179 mmHg SBP and/or > 109 mmHg DBP) in order not to expose subjects to unnecessary risks) - Pulmonary or inflammatory disease - Kidney failure or electrolyte disorders - Pregnancy or lactation - No change in use of oral anticonceptiva or IUD (12 weeks prior of during the intervention) - Known allergic reaction to ultrasound contrast-agent - Smoking (active or cessation <1 year prior to screening date). - High alcohol usage (>4 U/day) or drug abuse - Use of dietary supplements or an investigation product within the previous month - Significant food allergies/intolerance - Vegetarianism - Subjects who intend to donate blood during the intervention or subjects who have donated blood less than three months before the start of the intervention. - Participation in another biomedical trial during the past 30 days.

Study Design


Intervention

Other:
Diet low or high in advanced glycation endproducts
All subjects will undergo an intervention consisting of a prescribed diet containing either a low or high quantity of AGEs during 4 continuous weeks.

Locations

Country Name City State
Netherlands Maastricht University Maastricht Limburg

Sponsors (1)

Lead Sponsor Collaborator
Maastricht University Medical Center

Country where clinical trial is conducted

Netherlands, 

Outcome

Type Measure Description Time frame Safety issue
Primary Insulin sensitivity Assessed by hyperinsulinaemic-euglycaemic clamp Difference after 4 weeks of intervention
Secondary Microvascular function Assessed by contrast-enhanced ultrasound (CEUS) in skeletal muscle Difference after 4 weeks of intervention
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