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Transcatheter Aortic Valve ReplacementPhase 4NCT03747432

Comparison of Procedural Sedation With Propofol and Dexmedetomidine During Transcatheter Aortic Valve Implantation

A Phase 4 study testing Propofol and Dexmedetomidine in people with Transcatheter Aortic Valve Replacement and Procedural Sedation, run by University Medical Centre Ljubljana at 1 site in Slovenia.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Aortic valve stenosis is the most common valvular heart disease in the developed world, affecting 3,9% of population over 70 years of age. If untreated it carries a poor prognosis, leading to heart failure and death in 2 years after first symptom presentation. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Propofol and Dexmedetomidine
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
70 participants
Where
1 siteSlovenia
Study dates
15 Jan 2019to 30 Jun 2021
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Admission to University Medical Centre Ljubljana cardiology ward for TAVR using transfemoral approach
  • Voluntary agreement to participate in the study
  • Aged over 18 years

Who cannot join

  • Disagreement to participate in the study
  • Unable to voluntarily agree to participate in the study
  • Unable to participate in Mini-Mental State Examination
  • History of alcohol abuse
  • Diagnosed progressive dementia
  • History of cerebrovascular insult

Trial locations and contacts

1 site in 1 country.

Slovenia1 site
  • UMC Ljubljana

    Ljubljana, 1000

Other trials in Slovenia

About this study

Official title: Comparison of Procedural Sedation With Propofol and Dexmedetomidine During Transcatheter Aortic Valve Implantation Using the Transfemoral Approach: Randomized Double Blind Prospective Study

Aortic valve stenosis is the most common valvular heart disease in the developed world, affecting 3,9% of population over 70 years of age. If untreated it carries a poor prognosis, leading to heart failure and death in 2 years after first symptom presentation. Treatment of choice for severe aortic stenosis is surgical aortic valve replacement. A new treatment option for severe aortic stenosis emerged in the last decade - Transcatheter Aortic Valve Replacement (TAVR). This minimally invasive method was formerly reserved for high risk patients deemed unfit for surgical aortic valve replacement. Increasing use throughout the developed world and recent studies have established TAVR as a safe and viable treatment option also for intermediate-risk patients. TAVR not only enables a less aggressive surgical approach, but also a less invasive type of anaesthesia. Anaesthesiologists are trying to modify the type of anaesthesia in the way of minimally invasive approach, aiming to improve the overall outcome.

TAVR can be performed under general anaesthesia or procedural sedation (PS). From the start, TAVR was performed solely under general anaesthesia. Over time the procedure became routine and the anaesthesiologists started to commonly decide for PS. Many US and European retrospective studies have established PS to be a safe and compelling method of anaesthetic care for TAVR procedures with a favorable perioperative course, less complications, shorter intensive care unit and in-hospital stay and lower early mortality, when performed by an experienced anaesthesia team. There are many anaesthesia agents currently accepted for PS in everyday anaesthesia practice. Presently, reliable data from studies comparing different agents for PS for TAVR procedures is scarce. Most of it comes from retrospective nonrandomized trials. Propofol is a popular anaesthetic agent for PS. According to current studies, it is a safe anaesthetic agent with favorable pharmacokinetic and pharmacodynamic profiles with quite low incidence of side effects. In recent years, dexmedetomidine has been commonly used for PS having analgesic properties inclusive of its anaesthetic properties. In addition, dexmedetomidine is associated with a lesser degree of respiratory depression as to other anaesthetic agents. Patient comfort is also believed to be improved with dexmedetomidine. Studies comparing outcomes of PS with propofol versus dexmedetomidine for different non-cardiac and interventional procedures showed benefits of dexmedetomidine, owing to its analgesic properties and preferable respiratory parameters.

The aim of this study is to compare the outcome of patients undergoing TAVR under PS with dexmedetomidine against those undergoing TAVR under PS with propofol. With the results the investigators aim to aid in defining the optimal anaesthetic agent for PS for TAVR and possibly other interventional cardiology procedures.

Keywords
Transcatheter Aortic Valve Replacement, Procedural Sedation, Propofol, Dexmedetomidine

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PropofolDrug

    Procedural sedation during TAVR procedure using propofol

  • DexmedetomidineDrug

    Procedural sedation during TAVR procedure using dexmedetomidine

Study groups in NCT03747432
Study groupRoleWhat they receive
PropofolExperimentalProcedural sedation with propofol during the TAVR procedure (anticipated around 2 hours), dosage: 0,5-2,5 mg/kg/h for appropriate level of sedation - Ramsay sedation score 3-4)
Receives: Drug: Propofol
DexmedetomidineExperimentalProcedural sedation with dexmedetomidine during the TAVR procedure (anticipated around 2 hours), dosage: bolus of 0,5 mcg/kg during 10 minutes, then continuous infusion of 0,2-1 mcg/kg/h for appropriate level of sedation - Ramsay sedation score 3-4)
Receives: Drug: Dexmedetomidine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Effect of procedural sedation with propofol or dexmedetomidine on cognitive function of patients

    The investigators will perform cognitive function testing (Mini-Mental State Examination Test) one day before the procedure (baseline result) and 48 hours after the procedure (assesing change from baseline result)

    Measured: 3 days

  2. Effect of procedural sedation with propofol or dexmedetomidine on appearance of postoperative delirium

    The investigators will perform CAM-ICU delirium assesment method every 12 hours for 84 hours after the procedure, assesing appearance of postoperative delirium in the first 84 hours after the procedure

    Measured: 84 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Nov 2018
  2. Study start15 Jan 2019
  3. Primary completion30 Jun 2021
  4. Study completion30 Jun 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
70 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03747432
Sponsor's protocol ID
UMCLJTAVR
Status last verified
May 2023
First submitted
3 Nov 2018
Last updated
10 May 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Propofol and Dexmedetomidine in people with Transcatheter Aortic Valve Replacement and Procedural Sedation, run by University Medical Centre Ljubljana at 1 site in Slovenia.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 10 May 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Slovenia. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Effect of procedural sedation with propofol or dexmedetomidine on cognitive function of patients (time frame: 3 days). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 May 2023.

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