Gut Microbiota and Serum Metabolites as Predictors of Glycemic Variability and Outcomes in Diabetic Kidney Disease

Trial statusNot yet recruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18-65
SponsorEighth Affiliated Hospital, Sun Yat-sen University

About this trial

Diabetic kidney disease (DKD) is one of the main complications of diabetes and a leading cause of end-stage kidney disease. Blood glucose variability is closely associated with disease progression in individuals with DKD. Recent evidence suggests that gut bacteria and their circulating metabolites may play important roles in regulating blood glucose variability and clinical outcomes. However, it remains unclear whether gut bacteria and blood metabolites influence DKD progression through effects on blood glucose variability.

This study aims to (1) characterize gut bacteria and blood metabolites in individuals with DKD at different stages and levels of disease severity, and evaluate their value in predicting adverse outcomes; (2) assess the relationships among gut bacteria, blood metabolites, and blood glucose variability; and (3) determine whether gut bacteria and blood metabolites affect clinical outcomes by modulating blood glucose variability.

A total of 270 individuals with DKD will be enrolled in a prospective observational cohort. The investigators will conduct continuous glucose monitoring and collect stool and blood samples for advanced analyses of gut microbiota and blood metabolites. The objective is to clarify how gut bacteria and circulating metabolites relate to blood glucose variability and disease prognosis, and to develop tools to identify high-risk individuals at an early stage. Ultimately, the findings may provide new insights and strategies to improve clinical care and quality of life for individuals with DKD.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age 18-65 years

Diagnosis of Diabetic Kidney Disease (DKD)

Type 2 Diabetes Mellitus

Stable Antidiabetic Regimen:The antidiabetic regimen must have been stable for at least 3 months prior to study enrollment.

Disqualifiers

None

Trial population

The study population will consist of adult patients diagnosed with Diabetic Kidney Disease (DKD), aged between 18 and 65 years. All participants will have a confirmed diagnosis of Type 2 Diabetes Mellitus (T2DM) in accordance with the 1999 World Health Organization diagnostic criteria, and meet the diagnostic criteria for DKD as outlined in the 2021 Chinese Guidelines for the Prevention and Treatment of Diabetic Kidney Disease.

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

Not listed

Trial groups

No trial groups listed

Trial outcomes

Primary outcomes

1

Number of Participants with Diabetic Kidney Disease (DKD) Progression

DKD progression is defined as the occurrence of at least one of the following events: (1) end-stage kidney disease requiring dialysis or kidney transplantation; or (2) a sustained decline of ≥30% in estimated glomerular filtration rate (eGFR) from baseline. This outcome will be used to assess the predictive value of blood glucose variability, gut microbiota, serum metabolites, and inflammatory markers for long-term DKD progression.

Time frame
Time Frame: 12 months (from baseline to endpoint assessment) This time frame reflects the follow-up period during which DKD progression will be monitored in the study cohort.

Secondary outcomes

1

Number of Participants with Cardiovascular Mortality

Cardiovascular mortality is defined as death resulting from heart disease or related cardiovascular complications occurring during the follow-up period.

Time frame
Time Frame: 12 months Adverse events will be monitored over a period of 12 months from baseline to track occurrences and assess their relationship with GV and other biomarkers.
2

Number of Participants with Major Adverse Cardiovascular Events (MACE)

Major adverse cardiovascular events (MACE) are defined as the occurrence of myocardial infarction, stroke, or unstable angina during the follow-up period.

Time frame
12 months (from baseline)
3

Number of Participants Undergoing Kidney Transplantation

Kidney transplantation is defined as receipt of a kidney transplant procedure during the follow-up period.

Time frame
12 months (from baseline)
4

Number of Participants with Hypoglycemic Events

Hypoglycemic events are defined as documented episodes of hypoglycemia occurring during the study period, identified by continuous glucose monitoring and/or clinical records.

Time frame
12 months (from baseline)

Other outcomes

Locations

This trial has no locations.

Sponsors and contacts

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