Oxygenation of the Cerebrum and Cooling During Transcatheter Aortic Valve Implantation (TAVI) Procedures - Part II

April 2, 2013 updated by: Prof Dr Cathy De Deyne, Hasselt University
The aim of this study is to assess the possible neuroprotective effects of cooling (targeted cooling of the brain to 33°C) during Transcatheter Aortic Valve Implantation (TAVI) procedures. From start of anesthesia, until final valve implantation, local cooling (by the RhinoChill device) will be applied to the brain. Effect of cooling on cerebral oxygenation, by cerebral oxygen saturation monitoring (NIRS ForeSight technology) during the TAVI procedure will be continuously assessed during native valve manipulation and during final valve deployment (=primary endpoint of he study). As secondary endpoints, neuropsychological testing performed before and after TAVI procedure will assess the effects of the use of cooling during the TAVI procedure. Neuron-specific enolase (NSE) and S100-beta will be analyzed during and up to 72hrs after TAVI to compare the cerebral ischemic damage between cooled and non-cooled patients. And finally, diffusion-weighted MRI of the brain will be performed 5 days before and 5-7 days after TAVI to compare the number and total amount of cerebral ischemic insults between cooled and non-cooled patients. The hypothesis behind this study is that by local cooling of the brain during manipulation of the calcified aorta and aortic valve, the brain might be protected from cerebral ischemic insults.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
30

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

  • Name: Jo A Dens, MD, PhD
  • Phone Number: 003289327088
  • Email: jo.dens@ZOL.be

Study Locations

  • Belgium
      • Genk, Belgium, 3600
        • Recruiting
        • Ziekenhuis Oost-Limburg
        • Contact:
        • Contact:
        • Principal Investigator:
          • Jo A Dens, MD, PhD
      • Leuven, Belgium
        • Not yet recruiting
        • Universitair Ziekenhuis
        • Contact:
        • Principal Investigator:
          • Christophe Dubois, MD,PhD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • ADULT
  • OLDER_ADULT
  • CHILD

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • pts scheduled for transcatheter aortic valve implantation

Exclusion Criteria:

  • pts with pacemaker already implanted
  • pts with recent stroke or Transient Ischemic Attacks (TIA) (6months)
  • pts with extreme claustrophobia for MRI brain examination

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: PREVENTION
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: SINGLE

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
ACTIVE_COMPARATOR: targeted brain cooling
In these 15 pts, targeted brain cooling (tympanic temperature of 33°C) will be applied during the TAVI intervention by the use of the RhinoChill device (Benechill Inc, San Diego cA)
Device: targeted brain cooling (33°C) by RhinoChill device
targeted brain cooling by Rhinochill device to 33°C tympanic temperature during TAVI procedure. After valve implantation, slow rewarming until 35.5°C
PLACEBO_COMPARATOR: no use of targeted brain cooling
In these 15 pts, no cooling techniques will be applied and current clinical practice as to maintenance of normothermia will be followed during these TAVI interventions
Device: Placebo - current clinical practice, no cooling

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
changes in cerebral oxygen saturation during periods of rapid ventricular pacing and valve implantation
Time Frame: during TAVI procedure
changes in cerebral oxygen saturation during periods of rapid ventricular pacing (RVP) and valve implantation; changes in cerebral oxygen saturation compared to baseline values (of 10min) before periods of RVP (Area Under the Curve will be analysed and compared between cooled end non-cooled patients
during TAVI procedure

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
composite outcome measure : MRI of the brain before and after TAVI; NSE before and after TAVI; S100-B before and after TAVI; neuropsychological testing before and after TAVI
Time Frame: one year
one year

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
composite outcome measure : General Clinical Endpoints (as referring to the Valval Academic Research Consortium (VARC) - 2 recommendations)
Time Frame: one year
These clinical endpoints include : all-cause mortality; myocardial infarction; stroke & TIA; bleeding complication; acute kidney injury; vascular complications; conductance disturbances and arrhythmias; other TAVI-related complications; valvular function and quality of life
one year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Hasselt University

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Cathy S De Deyne, Md, PhD, University Hasselt / Ziekenhuis Oost-Limburg Genk (Belgium)

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

  • 1. Vahanian A, Alfieri O, Al-Attar N, Antunes M, Bax J, Cornier B, Cribier A, De Jaegere P, Fournial G, Kappetein AP et al. Transcatheter valve implantation for patients with aortic stenosis: a position statement from the European association of cardio-thoracic surgery (EACTS- and the European Society of Cardiology (ESC), in collaboration with the European Association of Percutaneous Cardiovascular Interventions (EAPCI). Eurointervention 2008;4:193-199 2. Leon MB, Smith CR, Mack M, Miller DC, Moses JW, Svensson LG, Tuzcu EM, Webb JG, Fontana GP, Makkar RR et al. Transcatheter aortic-valve implantation for aortic stenosis in patients who cannot undergo surgery. N Eng J Med 2010;363:1597-1607 3. Smith CR, Leon MB, Mack MJ, Miller DC, Moses JW, Svensson LG, Tizcu EM, Webb JG, Fontana GP, Makkar RR et al. Transcatheter versus surgical aortic-valve replacement in high-risk patients. N Eng J Med 2011;364:2187-2198 4. Grube E, Naber C, Abizaid A, Sousa E, Mendiz O, Lemos P et al. Feasibility of transcatheter aortic valve implantation withoutn balloon pre-dilatation. JACC Cardiovasc Interv 2011;4:751-757 5. Bagur R, Rodes-Cabau J, Doyle D, De Larochelière R, Villeneuve J, Bertrand OF et al. Transcatheter aortic valve implantation with

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
March 1, 2013

Primary Completion (ANTICIPATED)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 1, 2014

Study Completion (ANTICIPATED)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2014

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 24, 2013

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 2, 2013

First Posted (ESTIMATE)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 4, 2013

Study Record Updates

Last Update Posted (ESTIMATE)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 4, 2013

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 2, 2013

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2013

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • OCCTAVI-II
  • TAVI research funding (OTHER: Hasselt University)

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.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings