Chronic kidney disease (CKD) is a burden of morbidity and mortality. Increased protein breakdown in skeletal muscle (wasting) and ectopic fat deposition are important determinants of poor clinical outcome in patient with CKD. Insulin resistance plays a critical role in skeletal muscle wasting and ectopic fat deposition. Glucagon-like peptide-1 receptor agonists (GLP-1RA) decrease ectopic fat deposition in patients with type 2 diabetes, prediabetes, obese and overweight subjects. The influence of GLP-1RA on ectopic fat deposition in CKD patients in unknown. The investigators' will test the hypothesis that GLP-1RA decreases intermuscular (ectopic) fat deposition in patients with stage 3-4 CKD. The investigators' will do so by addressing the following specific aims: Specific Aim 1: To test the hypothesis that GLP-1RA decreases intermuscular fat deposition in patients with stage 3-4 CKD. Specific Aim 2: To test the hypothesis that GLP-1RA improves skeletal muscle mitochondrial function in patients with stage 3-4 CKD. Specific Aim 3: To test the hypothesis that GLP-1RA improves physical performance in patients with stage 3-4 CKD. Specific Aim 4: To test the safety and feasibility of 12 weeks of dulaglutide 1.5 mg/wk administration as an adjunct therapy to the standard care of patients with stage 3-4 CKD.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
OTHER
Masking
NONE
Enrollment
7
All participants will undergo a 4-week run-in phase followed by 12 weeks of treatment (dulaglutide 1.5 mg/wk), followed by 4 weeks of follow up after discontinuing the study medication
Vanderbilt University Medical Center
Nashville, Tennessee, United States
Changes in Intermuscular Fat Deposition as Assessed by Magnetic Resonance Imaging (MRI).
Sequential MRI will be performed during the run-in phase, at the beginning and end of the dulaglutide treatment and at the end of the observational follow up period. Intermuscular fat will be calculated as the ratio between intermuscular fat and muscle volumes in the mid-thigh region. Changes in intermuscular fat deposition will be calculated. the reported value is the difference between the end of study and baseline values (end of study minus baseline). A negative value will reflect a decrease in IMAT.
Time frame: 16 weeks
Changes in Skeletal Muscle Mitochondrial Function as Assessed by Phosphocreatine Recovery Time Constant by 31P Magnetic Resonance Spectroscopy (31P-MRS).
Sequential 31P-MRS, a gold standard technique for muscle mitochondrial function assessment, will be performed during the run-in phase, at the beginning and end of the dulaglutide treatment and at the end of the observational follow up period. Changes in phosphocreatine recovery time constant will be assessed.
Time frame: 16 weeks
Changes in Physical Performance as Assessed by Systemic Physical Performance Battery Test
Systemic physical performance battery test will be performed at the beginning and end of the dulaglutide treatment period. Changes will be assessed. The total score that will be reported is calculated by adding scores obtained from Balance test, Gait speed test and Chair stand test scores. The score for the primary outcome will be the difference between baseline and end of study. The SPPB total score ranges from 0 (worst performance) to 12 points (best performance) and categorically evaluates performance in the tests using three or four classes of scores: three classes: 0-6 points (poor performance), 7-9 points (moderate performance), and 10-12 points (good performance); or four classes: 0-3 points (disability/very poor performance), 4-6 points (poor performance), 7-9 points (moderate performance), and 10-12 points (good performance)
Time frame: 16 weeks
Safety and Feasibility of Dulaglutide Treatment as Evaluated by Subject Interview, Continuous Glucose Monitoring, Adverse Events (AE), Laboratory Tests, Vital Signs, ECG & Allergic/Hypersensitivity Reactions.
An AE will be defined as any undesirable medical event occurring to a subject in a clinical trial, whether it is related to the study agent. All adverse events will be graded as follows: 0 = No adverse events or within normal limits; 1 = Mild-did not require treatment; 2 = Moderate resolved with treatment; 3 = Severe-required professional medical attention; 4 = Life-threatening or disabling; 5 = Death.
Time frame: 16 weeks
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