Clinical Trials Logo

Clinical Trial Summary

Black individuals are more likely to have decreased insulin sensitivity which results in a high risk for the development of cardiometabolic disease. The reasons for this are incompletely understood. Natriuretic peptides (NPs) are hormones produced by the heart that play a role in regulating the metabolic health of an individual. Low circulating level of NPs is an important contributor to increased risk for diabetes. The NP levels are relatively lower among Black individuals thus affecting their metabolic health and putting them at a higher risk for diabetes. This study aims to test the hypothesis that by augmenting NP levels using sacubitril/valsartan, among Black Individuals one can improve their metabolic health (as measured by insulin sensitivity & energy expenditure) and help establish the role of NPs in the underlying mechanism behind increased risk for cardiometabolic disease in these population.


Clinical Trial Description

Black individuals are more likely to have a reduced insulin sensitivity which results in a greater risk for diabetes. However, the reasons for their decreased insulin sensitivity are not clearly understood. Natriuretic peptides (NPs) are hormones produced by the heart that is known to have a wide range of favorable metabolic effects. Studies indicate that lower NP levels are associated with a decreased insulin sensitivity and this may be causally related to the development of diabetes. Evidence suggests that Black individuals have low levels of NPs. Increased clearance of NPs by neprilysin, an NP degrading enzyme, contributes to the low levels of NP among Black individuals. Since NPs play an important role in the regulation of insulin sensitivity and energy expenditure, one can infer that relatively low NP levels are an important biological contributor to the high prevalence rates of cardiometabolic disease in African Americans. Sacubitril/valsartan is an FDA-approved inhibitor of neprilysin that augment NP levels. NP augmentation using sacubitril/valsartan has been shown to improve insulin sensitivity and lipid metabolism in a small clinical trial among obese White individuals. It can be postulated that NP augmentation in populations with relatively low NP levels will help in improving their metabolic health. Improvement in the metabolic health following NP augmentation will also help us to outline the relationship between the NP system and the risk of cardiometabolic disease among Black individuals. We hypothesize that NP augmentation among Black individuals will show an improvement in their metabolic health as measured by insulin sensitivity and energy expenditure. We hypothesize that African American individuals will show an improvement in their insulin sensitivity and their resting & exercise energy expenditure after treatment with sacubitril/valsartan versus valsartan alone. Our study will have the following aims. The first aim is to assess the change in the insulin sensitivity after NP augmentation therapy (using sacubitril/valsartan) as compared with NP neutral therapy (using valsartan) among Black individuals. We will measure the change in insulin sensitivity (assessed using IVGTT) after 12 weeks of intervention. We will also assess the change in NP levels (a marker of NP augmentation) & cyclic guanylate monophosphate (cGMP) levels after intervention and evaluate their relationship with the change in insulin sensitivity. The second aim of our study is to examine the change in the energy expenditure after sacubitril/valsartan as compared to valsartan alone among Black individuals. The individuals enrolled in the first aim will also be examined for the change in resting as well as exercise energy expenditure. This will be assessed using standardized protocol performed using the metabolic cart and an exercise treadmill, at baseline and after 12 weeks of either sacubitril/valsartan or valsartan alone. The secondary aim of our study is to assess the GLP-1 response to meals after treatment with sacubitril/valsartan in Black individuals. We will evaluate the change in postprandial GLP-1 response to meals at baseline and after 12 weeks of either sacubitril/valsartan or valsartan alone. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04055428
Study type Interventional
Source University of Alabama at Birmingham
Contact Nehal Vekariya, MS
Phone 205-934-7173
Email nvekariya@uabmc.edu
Status Recruiting
Phase Phase 2
Start date August 15, 2020
Completion date May 31, 2027

See also
  Status Clinical Trial Phase
Recruiting NCT05654272 - Development of CIRC Technologies
Recruiting NCT05650307 - CV Imaging of Metabolic Interventions
Recruiting NCT04515303 - Digital Intervention Participation in DASH
Completed NCT04056208 - Pistachios Blood Sugar Control, Heart and Gut Health Phase 2
Recruiting NCT04417387 - The Genetics and Vascular Health Check Study (GENVASC) Aims to Help Determine Whether Gathering Genetic Information Can Improve the Prediction of Risk of Coronary Artery Disease (CAD)
Not yet recruiting NCT06211361 - Cardiac Rehabilitation Program in Patients With Cardiovascular Disease N/A
Not yet recruiting NCT06032572 - Evaluation of the Safety and Effectiveness of the VRS100 System in PCI (ESSENCE) N/A
Recruiting NCT04514445 - The BRAVE Study- The Identification of Genetic Variants Associated With Bicuspid Aortic Valve Using a Combination of Case-control and Family-based Approaches.
Enrolling by invitation NCT04253054 - Chinese Multi-provincial Cohort Study-Beijing Project
Completed NCT03273972 - INvestigating the Lowest Threshold of Vascular bENefits From LDL Lowering With a PCSK9 InhibiTor in healthY Volunteers N/A
Completed NCT03680638 - The Effect of Antioxidants on Skin Blood Flow During Local Heating Phase 1
Recruiting NCT04843891 - Evaluation of PET Probe [64]Cu-Macrin in Cardiovascular Disease, Cancer and Sarcoidosis. Phase 1
Completed NCT04083872 - Clinical Study to Investigate the Pharmacokinetic Profiles and Safety of Highdose CKD-385 in Healthy Volunteers(Fasting) Phase 1
Completed NCT04083846 - Clinical Study to Investigate the Pharmacokinetic Profiles and Safety of High-dose CKD-385 in Healthy Volunteers(Fed) Phase 1
Completed NCT03693365 - Fluid Responsiveness Tested by the Effective Pulmonary Blood Flow During a Positive End-expiratory Trial
Completed NCT03466333 - Postnatal Enalapril to Improve Cardiovascular fUnction Following Preterm Pre-eclampsia Phase 2
Completed NCT03619148 - The Incidence of Respiratory Symptoms Associated With the Use of HFNO N/A
Completed NCT04082585 - Total Health Improvement Program Research Project
Completed NCT05132998 - Impact of a Comprehensive Cardiac Rehabilitation Program Framework Among High Cardiovascular Risk Cancer Survivors N/A
Completed NCT05067114 - Solutions for Atrial Fibrillation Edvocacy (SAFE)