Other Clinical Trial - Neuromodulation of Inflammation & Vascular Function

Status Completed

Clinical Trial Summary

Heart failure (HF) is the leading cause of death in US. It is associated with abnormal vascular function termed endothelial dysfunction. It is also associated with increased stress on the blood vessels and high levels of inflammation. Vagus nerve stimulation can help improve inflammation, vascular function and vascular stress. The investigator has recently completed a study showing that 1 hour of noninvasive vagus stimulation can improve vascular health. However, it is unknown if 4 weeks of stimulation will be beneficial in systolic heart failure. The purpose of this study is to determine if transcutaneous vagal stimulation (TVS) will lead to improvement in the function of the inner lining of participants' arteries, memory, and in the levels of certain chemical markers of arterial function in the blood. Participants will be randomized to receive either TVS or a sham stimulation and undergo 4 weeks of stimulation. Vascular function will be assessed by several non-invasive measurements, including Flow Mediate Dilation (FMD), Pulse Wave Analysis (PWA), EndoPAT, and Laser Speckle Contrast Imaging (LSCI). Participants' memory will also be measured through electronic assessments and blood will be collected and analyzed for arterial function chemical markers.

Clinical Trial Description

Visit 1: Following tests(to assess vascular function) will be done: 1. FMD 2) LSCI 3) EndoPAT and 4) Pulse wave analysis (PWA). Patients will rest for 10 minutes between each test. They will be trained to use PARASYMTM unit for TVS. Blood collected, serum/plasma will be stored at -80F. Whole blood will be collected in PAXgene tubes. Patients will be instructed to apply TVS to either ear lobule (SHAM) or Tragus(experimental arm). Baseline characteristics will be collected including data on ventricular function(LVEF and left ventricular volumes). Visit 2 (4 weeks): Follow up tests(FMD,LSCI,EndoPAT,PWA) and repeat blood collection. Inflammatory cytokines and vascular function assays will be performed. ;

Study Design

Related Conditions & MeSH terms

Heart Failure
Heart Failure With Reduced Ejection Fraction
Inflammation

Clinical Trial Details

NCT number	NCT03945058
Study type	Interventional
Source	University of Oklahoma
Contact
Status	Completed
Phase	N/A
Start date	February 4, 2020
Completion date	December 16, 2021

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Neuromodulation of Inflammation and Vascular Function in Systolic Heart Failure — TECO-HF

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms