Assessment of Coronary Pressure Using the Combined Guidewire and Catheter Wirecath

January 8, 2024 updated by: Vastra Gotaland Region
In summary, the purpose of the study is to evaluate whether the Wirecath device can be used as a standard pressure wire in a safe and efficient way.

Study Overview

Status

Status

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

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.

Detailed Description

Simultaneous measurements study (group 1) This group will be recruited and assessed in parallel with recruitment to group 2 at the discretion of the treating physician, based on the resource availability in the cath lab.

In the simultaneous measurements study group, measurements will be collected from a Wirecath® and a regular sensor-tipped pressure wire in the same position in the coronary artery at the same time (simultaneously). The regular wire to be used is the market leading Abbott PressureWire®.

By comparing the pressure measurements (Pd) from Wirecath® and from a regular sensor-tipped wire, we intend to examine if the pressure reported by the two wires deviate in any way. If a deviation exists, the hydrostatic error, caused by the height difference between the positions of Pa and Pd when using a sensor-tipped wire, will be assessed.

In FFR-negative patients, after removal of the Wirecath®, the Abbott PressureWire® is used in LAD

  • first to measure CFR by saline bolus injections and thermodilution during rest and hyperemia (Bolus-thermo CFR) and
  • second together with a Hexacath/Rayflow@ infusion catheter and a saline infusion pump to measure absolute flow during rest and hyperemia that will be used to calculate CFR (Absolute-flow CFR).

Wirecath will be used for PCI when indicated and performance documented by follow-up questions to the users.

Regular study group (group 2) In the regular use study group, the Wirecath® is to be used as a regular pressure measurement tool, replacing the regularly used pressure wire.

Pressure measurement results will be collected.

Wirecath® will be used for PCI when indicated and performance documented by follow-up questions to the users.

In FFR-negative patients, after removal of the Wirecath®, the Abbott PressureWire® is used in LAD

  • first to measure CFR by saline bolus injections and thermodilution during rest and hyperemia (Bolus-thermo CFR) and
  • second together with a Hexacath/Rayflow® infusion catheter and a saline infusion pump to measure absolute flow during rest and hyperemia that will be used to calculate CFR (Absolute-flow CFR).

Echocardiography-CFR group (group 3) Patients from group 1 and group 2 that have undergone Bolus-thermo and Absolute-flow CFR measurements, will be recruited to group 3. In this group echocardiography-CFR (Echo CFR) will be measured within 14 days. The echocardiography is performed according to the standard procedure of the hospital. The correlation between the methods will be investigated.

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 (Actual)

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.
45

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 Locations

  • Sweden
      • Gothenburg, Sweden, 41345
        • Sahlgrenska University Hospital

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

19 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Adults (>18yrs age)
  • Informed consent given
  • Patients with result from diagnostic angiography
  • Indication for coronary pressure assessment

Exclusion Criteria:

  • Patients with known Heparin-Induced Thrombocytopenia (HIT) or allergy to heparin.
  • Inability to tolerate Adenosine
  • Any condition, e.g. unstable health, which in the opinion of the investigator makes the patient unsuitable for inclusion (Decision documented in inclusion log).

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: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

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.
Other: Study arm

Group 1 and group 2 will be recruited and assessed in parallel at the discretion of the treating physician, based on the characteristics of the patient. Group 3 will be recruited from suitable patients in group 1 and 2.

Simultaneous measurements study (group 1) Regular study group (group 2) Echocardiography-CFR group (group 3)
Device: Wirecath@ and Abbott PressureWire® (20 patients)
Simultaneous FFR measurements with Wirecath@ and Abbott PressureWire®
Device: Wirecath® (20 patients)
FFR measurement with Wirecath® only
Device: Coronary flow reserve
Pressure derived CFR with Wirecath®, Thermodilution CFR with Abbott PressureWire®, Absolut flow CFR with Abbott PressureWire® and Hexacath Rayflow catheter®, Non-invasive echo derived CFR

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
Safety of the Wirecath® will be assessed through the frequency and severity of all adverse events
Time Frame: 30-60 minutes
The safety of the Wirecath@ will be assessed through the frequency and severity of all adverse events reported for study subjects after the completion of the pressure measurement and PCI. The primary endpoint will be achieved when the device has been used on enrolled patients and required measurements have been taken.
30-60 minutes

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
Measure Description
Time Frame
Comparison with Abbott pressure wire
Time Frame: 30-60 minutes
comparing the Wirecath measurement values with the measurement values of a regular sensor-tipped pressure guidewire during simultaneous measurements in the same vessel.
30-60 minutes
Comparing pressure-derived coronary flow reserve (CFR) with bolus-thermo CFR, absolute flow CFR and non-invasive doppler derived CFR
Time Frame: 14 days
In FFR negative LADs, comparing the Wirecath® pressure-derived CFR values with CFR derived from thermodilution, absolute flow and echocardiography-CFR values. This secondary endpoint will be achieved if these values correlate
14 days

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.
Vastra Gotaland Region

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Cavis Technologies AB

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: Oskar Angerås, MD PhD, Sahlgrenska University Hospital, Gothenburg, Sweden

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 (Actual)

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.
February 25, 2021

Primary Completion (Actual)

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.
October 25, 2021

Study Completion (Actual)

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.
October 25, 2021

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).
February 23, 2021

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.
February 26, 2021

First Posted (Actual)

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.
March 1, 2021

Study Record Updates

Last Update Posted (Actual)

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.
January 9, 2024

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.
January 8, 2024

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.
February 1, 2021

More Information

Terms related to this study

Keywords

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.
  • 0100P

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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