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NCT04347655

Assessing Systemic Circulation and LV Performance in Adults

Recruiting now NA Last updated 8 May 2024
What this trial tests

NA trial testing handgrip test in Heart Failure in 100 participants. Currently enrolling.

Timeline
15 September 2021
Primary endpoint
31 December 2025
31 December 2026

Quick facts

Lead sponsorUniversity of Calgary
PhaseNA
StatusRecruiting now
Study typeINTERVENTIONAL
Allocationnon randomized
Designparallel
Maskingnone
Primary purposediagnostic
Enrollment100
Start date15 September 2021
Primary completion31 December 2025
Estimated completion31 December 2026
Sites1 location across Canada

Drugs / interventions tested

Conditions studied

Sponsor

University of Calgary

Who can join

18 and older, any sex, with Heart Failure. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Background There are significant limitations in the current approaches to assessing 2 important areas of cardiovascular physiology - the systemic circulation and left ventricular (LV) performance. The investigators' have repurposed the concepts of "systemic vascular conductance" to assess systemic circulation, and the "head capacity principle" to assess LV performance. The investigators' now seek to test these concepts in human adults, with heart failure and without heart failure, using non-invasive methods. Hypothesis There will be a depressed head-capacity curve and reduced power among patients with heart failure which will indicate compromised left ventricular pump function. Methods The research study will involve a single outpatient visit per subject. The study will take place with the subject supine on a bed/table. The subjects will be instrumented with EKG electrodes and finger blood pressure cuffs. The continuous finger BP device performs a waveform analysis in real-time to determine the non-invasive stroke volume, cardiac output, and blood pressure. The patient will be supine for at least 5 minutes to collect baseline data before being handed a dynamometer device. The subject will then be asked to squeeze the dynamometer with maximum force for a minimum of 2 minutes while only engaging their forearm and remaining relaxed in the rest of their body. The subject will then release the dynamometer and remain supine, in recovery, for a minimum of 5 minutes. Following the handgrip test, the instrumentation will be removed and the patient's participation in the study will be complete. The study duration should be about 20 min.

Publications & conference data

No peer-reviewed publications indexed yet for this trial.

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Other recruiting trials for Heart Failure

Currently open trials in the same condition.

Other University of Calgary trials

Trials by the same sponsor.

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Data sources for this page

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