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Individual Determinants of Postprandial Glucose Response in Type 2 Diabetes

NCT06057246 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 144

Last updated 2023-10-11

No results posted yet for this study

Summary

Postprandial glycemia (PPG) is a relevant determinant of glucose control in people with type 2 diabetes (T2D). Epidemiological and pathophysiological studies indicate that PPG is a better risk predictor for cardiovascular disease and all-cause mortality than fasting plasma glucose. Therefore, both fasting and postprandial glycemia should be targeted to achieve optimal glycemic control and, thus, prevent or reduce the risk of diabetes complications.

Post-prandial glucose response (PGR) cannot be predicted based solely on the meals' carbohydrate content. Recent research using continuous glucose monitoring (CGM) systems has identified different patterns of PGR to a standard meal among both healthy people and individuals with type 1 diabetes. Different contributors to the PGR have emerged, including genotype, hormonal and metabolic factors, phenotype, gut microbiota composition, background diet, sleep habits, physical activity levels.

The present project aims at exploring the PGR in a real-life setting in a cohort of people with T2D, and identifying person-specific factors associated with different postprandial glucose patterns.

To this purpose, 144 individuals with T2D on treatment with diet alone or diet plus metformin will be characterized for their anthropometric, metabolic, and gut-microbiome features and will undergo a one-week observational period through CGM system, while properly recording their food intake, physical activity, and sleep habits. A mixed-nutrient standardized meal will be consumed at home in two occasions by each participant to investigate the intra-individual variability of the PGR. Moreover, in a subgroup of participants (n=60), divided according to anthropometric and metabolic features, hormonal and metabolic response to the standardized meal will be evaluated at the hospital, to explore the contribution of different T2D phenotypes to the PGR.

A further step will be developing a prediction algorithm of PGR based on the intra- and inter-individual factors shown to influence postprandial glucose, able to further optimize the management of T2D with precision therapeutic strategies.

Conditions

Interventions

OTHER

Test meal with postprandial samples

The mixed-nutrient test meal consists of a sandwich made with bread, spread cheese, air-cured beef, and one apple. Nutritional composition of the meal will be: total energy (TE) content 532 kcal, carbohydrates 68,4 g (49.3% TE), total fat 17.1 g (29.5% TE), protein 27.8 g (21.4% TE), and fibre 6 g. Before and over 4 hours after the meal, venous blood samples will be taken for biochemical evaluations at the time points -15'; 0'; 15'; 30'; 60'; 120'; 180'; 240'.

Sponsors & Collaborators

  • Federico II University

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
30 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-05-15
Primary Completion
2024-09-30
Completion
2025-05-31

Countries

  • Italy

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06057246 on ClinicalTrials.gov