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Completed Phase 2 Interventional Results available

Metformin in Kidney Disease

ClinicalTrials.gov ID: NCT02252081

Public ClinicalTrials.gov record NCT02252081. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 4, 2026, 10:53 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Dysmetabolism of Chronic Kidney Disease and Vascular Health

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Chronic kidney disease (CKD) is a major global health problem associated with substantial costs and resource utilization. Currently, CKD affects more than 500 million people worldwide. Patients with CKD have unacceptably high mortality rates due to cardiovascular (CV) causes, which are not entirely explained by traditional CV risk factors. The mortality rates in advanced CKD are six times higher compared to the Medicare population, with CVD accounting for the overwhelming majority of deaths. Insulin resistance (IR) is common in CKD patients and may represent a central link between CKD and the increased CVD risk observed in this population. Insulin resistance may increase CV risk by impairing and worsening endothelial function, increasing reactive oxygen species, and exacerbating systemic inflammation-hence, insulin resistance is considered a "non-traditional CV risk factor" in CKD. Obesity (defined by a body mass index \[BMI\] of at least 30 kg/m2) is a major public health problem-the upward trend in obesity prevalence across regions and continents is a worldwide concern. Obesity increases the risk for cardiovascular disease and death. In the general population, obesity hastens death by 9.4 years. Obesity is an independent risk factor for CKD. Besides its contribution to the development of diabetes and hypertension, increased fat mass may also have a direct impact on kidney function. In spite of the increasing prevalence of both obesity and CKD, the impact of obesity in the CKD population is not known, especially in terms of the exaggerated metabolic disturbances associated with their coexistence. It is highly likely that these two conditions have profound interactions that exaggerate the severity of the metabolic derangements when they coexist, particularly in regards to adipokine dysregulation, the risk of "insulin resistance", and downstream effects on vascular health. The current proposal will attempt to characterize the relative and combined impact of both obesity and CKD on metabolic disturbances, which may aid in risk stratification and identifying specific targets for intervention. The ultimate goal of this proposal is to understand the relative and combined impact of obesity and CKD on the generation and maintenance of insulin resistance and their impact on cardiovascular health. Specific Aim 2: To study the effects of metformin, an AMPK activator, on metabolic disturbances associated with obesity and moderate CKD. S.A.2.a: To test if metformin will improve LAR in obese patients with moderate CKD compared to placebo. S.A.2.b: To test if metformin will improve markers of systemic inflammation, oxidative stress, endothelial dysfunction in obese patients with moderate CKD compared to placebo. S.A.2.c: To test if metformin will improve atherosclerosis markers and reduce clinical CVD events in obese patients with moderate CKD compared to placebo. Hypothesis: The investigators hypothesize that the administration of metformin in obese CKD patients will significantly improve the adipokine profiles-particularly through a reduction in LAR. Additionally, that it will improve systemic inflammation, oxidative stress and endothelial function, which may or may not be mediated by changes in adipokines. Finally, the investigators hypothesize that improvements in these markers of vascular health will translate into reduced arterial stiffness and less clinical CV events

Study identification

NCT ID
NCT02252081
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Enrollment
125 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Oct 1, 2014 (Actual)
Primary completion
Dec 31, 2019 (Actual)
Completion
Dec 31, 2019 (Actual)
Last update posted
Nov 4, 2021

2014 – 2019

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Tennessee Valley Healthcare System Nashville Campus, Nashville, TN Nashville Tennessee 37212-2637 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT02252081, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Nov 4, 2021 · Synced Oct 4, 2026

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Open the official record

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