- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04999995
Diagnostic Potential of UCHL1 in Acute Decompensated Heart Failure
To Explore the Potential of UCH-L1 as a Novel Therapeutic and Diagnostic Target in Heart Failure
Study Overview
Status
Conditions
Detailed Description
Heart failure (HF) is an important cause of morbidity and mortality among US Veterans. Epidemiologic data points to acute decompensated heart failure (ADHF) as a leading cause of hospitalizations in the VA system. The pathophysiologic mechanisms underlying the progressive deterioration of cardiac function remain poorly understood. Autophagy is an evolutionarily conserved pathway that targets cytoplasmic contents to the lysosome for degradation in the cell. In mammals, autophagy has been classified into three different types depending on the means by which the target is delivered into lysosomes for final degradation: (i) macroautophagy, (ii) microautophagy, (iii) chaperone-mediated autophagy (CMA). Both macroautophagy and CMA may participate in degradation of damage proteins; however, only macroautophagy could clear the damage organelles in the cells. Among them, macroautophagy (thereafter and other parts of this proposal referred to as autophagy) is the best characterized. It can be induced by nutrient deprivation and various stress conditions; in these circumstances, autophagy is essential for the maintenance of cell homeostasis by its promotion of the removal of damaged components including long-live and dysfunctional proteins and damaged organelles, such as mitochondria, as well as by its provision of energy and biomolecules to cells including cardiomyocytes. Thus, autophagy is increasingly recognized to play an important role in protecting the heart against various pathological stress-induced damage and dysfunction. In contrast, it has also been proposed that autophagy may be detrimental to the heart in some specific settings. However, the precise reason for such discrepancies is poorly understood. In particularly, the regulatory mechanisms for selective control of autophagy-mediated cardiac protection or dysfunction are unclear. The therapeutic approach targeting autophagy to cardiac disease and heart failure remains to be established.
An important regulatory process within the autophagy pathway is ubiquitination. Ubiquitination targets proteins for degradation. On the contrary, de-ubiquitinating proteins reverses this process. Studies have demonstrated deubiquitination to be linked to certain pathological processes, such as heart failure. Ubiquitin carboxyhydrolase L1 (UCHL1) has been identified by the co-investigator (Dr. Taixing Cui) in mouse models of pressure-overload cardiomyopathy. More data is required to identify UCHL1 as a significant marker in humans with HF.
Heart failure biomarkers play an important role in heart failure care. In general, despite significant overlaps, these biomarkers are loosely arranged into the following categories: 1) myocardial stress/injury, 2) neurohormonal activation, 3) remodeling and 4) comorbidities. None of current biomarkers alone or in combination may fulfil the need regarding screening, diagnosis, prognosis and therapy guidance. Therefore, it is important to find out novel biomarkers of cardiac disease and heart failure, especially those which reflect in important pathophysiologic pathway involved in heart failure disease process and help clinical judgement for understanding diagnosis, prognosis, or management of heart failure. As a result, the novel biomarkers will supplement traditional clinical and laboratory testing to improve understanding of the complex disease processes of heart failure and possibly achieve personalized care for heart failure patients. Human studies of circulating UCHL1 have identified it as a having diagnostic or prognostic value in this pathological settings. However, whether it is applicable to cardiovascular disease has not been studied. This gap will be filled in part by this proposal.
Aim: To explore the diagnostic and/or prognostic value of circulating exosomal UCH-L1 in VA HF patients. We will translate findings from animal models to bed side by a proof-of-principal study to demonstrate that circulating UCH-L1, particularly the exosomal UCH-L1 is higher during acute decompensation than when compensated in VA HF patients.
Study Type
Enrollment (Estimated)
Contacts and Locations
Study Contact
- Name: Amy Flowers
- Phone Number: 6005 (803) 776-4000
- Email: amy.flowers@va.gov
Study Contact Backup
- Name: Harshitha Kota, MD
- Phone Number: 54513 (803) 776-4000
- Email: harshitha.kota@va.gov
Study Locations
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South Carolina
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Columbia, South Carolina, United States, 29209-1638
- Recruiting
- Wm. Jennings Bryan Dorn VA Medical Center, Columbia, SC
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Principal Investigator:
- Taixing Cui, PhD MB
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Contact:
- Harshitha Kota, MD
- Phone Number: 54513 803-776-4000
- Email: harshitha.kota@va.gov
-
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
- Admission for decompensated HF (traditional diagnostic criteria will be utilized for diagnosing ADHF - presence of dyspnea as presenting complaint; evidence of volume overload - peripheral or pulmonary edema, elevated jugular venous pressure > 10 cmH2O, presence of hepatojugular reflux, or ascites; elevated B-type Natriuretic Peptide (>100ng/ml); evidence of pulmonary vascular congestion on chest x-ray1, or Admission for dyspnea that is NOT related to ADHF (absence of all HF symptoms and signs mentioned in ADHF inclusion criteria- except for dyspnea as presenting complaint)
- Able to give informed consent
- Age >= 18 years
Exclusion Criteria:
- Mortality during inpatient observation
- Presence of acute stroke (ischemic or hemorrhagic)
- Presence of intracranial hemorrhage
- History of acute stroke (ischemic or hemorrhagic) or intracranial hemorrhage within the preceding 6 months
- Presence of decompensated liver disease (elevated ALT/AST; ascites; Acute variceal bleeding; or hepatic encephalopathy)
- Presence of sepsis
- Presence of severe hyponatremia (Serum sodium < 130 meq/L)
- Active malignancy (undergoing chemotherapy, radiation therapy, or planned surgical intervention)
- SARS-CoV-2 positive during the current admission
Study Plan
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
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HFrEF
Patients admitted with acutely decompensated HFrEF.
|
HFpEF
Patients admitted with acutely decompensated HFpEF.
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Non-HF Dyspnea
Patients admitted with acute dyspnea without evidence of HF.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Diagnostic accuracy
Time Frame: 30 days
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Assess accuracy of UCHL1 to diagnose ADHF as well as correlate with improvement
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30 days
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Taixing Cui, PhD MB, Wm. Jennings Bryan Dorn VA Medical Center, Columbia, SC
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- CARA-005-19F
- 1569386 (Other Identifier: William Jennings Bryan Dorn VA Medical Center)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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