CentriMag Ventricular Assist System in Treating Failure-to-Wean From Cardiopulmonary Bypass

June 23, 2022 updated by: Abbott Medical Devices

Thoratec CentriMag VAS Failure-to-Wean From Cardiopulmonary Bypass Trial

The purpose of the study is to evaluate the safety and effectiveness of the CentriMag ventricular assist system to help patients who have experienced heart failure during surgery and cannot be removed from cardiac bypass.

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.

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.
32

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 Locations

  • United States
    • Arizona
      • Phoenix, Arizona, United States, 85054
        • Mayo Clinic Hospital, Arizona
    • Connecticut
      • New Haven, Connecticut, United States, 06510
        • Yale University
    • Kentucky
      • Lexington, Kentucky, United States, 40536
        • University of Kentucky
    • Maryland
      • Baltimore, Maryland, United States, 21201
        • University of Maryland
    • Minnesota
      • Minneapolis, Minnesota, United States, 55455
        • Fairview University Medical Center
    • New York
      • New York, New York, United States, 10032
        • New York Columbia Presbyterian Hospital
      • Rochester, New York, United States, 14642
        • University of Rochester
    • North Carolina
      • Durham, North Carolina, United States, 27710
        • Duke University Medical Center
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • Hospital of the University of Pennsylvania
      • Pittsburgh, Pennsylvania, United States, 15213
        • University of Pittsburgh Medical Center
    • Texas
      • Houston, Texas, United States, 77030
        • St. Luke's Episcopal
    • Utah
      • Murray, Utah, United States, 84107
        • Intermountain Medical Center
      • Salt Lake City, Utah, United States, 84132
        • University of Utah
    • Wisconsin
      • Milwaukee, Wisconsin, United States, 53215
        • St. Luke's Medical Center

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • At least 18 years of age
  • Cardiac dysfunction due to failure-to-wean from cardiopulmonary bypass
  • Subjects who are on IABP, CPB, ECMO or CPS support prior to evaluation should have the device turned off, if possible, for the purpose of measuring inclusion hemodynamics. However, these devices should not be turned off in patients who would be harmed by interruption of support.
  • All subjects must meet the following criteria at the time of enrollment:

  • Hemodynamics:

    1. cardiac index ≤ 2.2 L/min/m2
    2. For patients being evaluated for left-sided support (LVAD): PCWP ≥ 18 mmHg or PADP ≥ 18 mmHg or LAP ≥ 18 mmHg
    3. For patients being evaluated for right or biventricular support: CVP ≥ 15 mmHg or RAP ≥ 15 mmHg and RVSWI ≤ 4.1 gm/m2/beat
    4. Enrollment without hemodynamic measurements due to frequent or unpredictable dysrhythmias, unacceptable cardiac function, or hemodynamic instability is allowed.
  • Placement of an intra-aortic balloon pump has been attempted unless contraindicated
  • All possible measures have been attempted to correct low arterial pH, arterial blood gas abnormalities, electrolytes, hypovolemia, hypervolemia, inadequate cardiac rate, dysrhythmias and residual hypothermia
  • Cardiac resuscitation using pharmacologic agents, and epicardial pacing (if appropriate and possible) has been attempted
  • Written, signed, and dated informed consent

Exclusion Criteria:

  • BUN > 100 mg/dl
  • Creatinine > 5 mg/dl
  • Presence of any investigational mechanical circulatory support device
  • Known history of liver cirrhosis or portal hypertension
  • Pulmonary infarction
  • Stroke, TIA or history of either condition within the last six months and/or any confirmed, existing neurologic deficits
  • Active systemic infection defined as positive blood cultures, core temperature >100.5 degrees, white blood count > 12,500, and treatment with antimicrobials
  • Participation in a clinical trial with any experimental treatment within 30 days prior to screening or previous participation in the present study
  • Other serious disease(s) limiting life expectancy

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: Treatment
  • 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.
Experimental: CentriMag Ventricular Assist System
All patients meeting the patient selection criteria will be treated with the CentriMag Ventricular Assist System.
Device: CentriMag Ventricular Assist System
All eligible subjects will receive the CentriMag Ventricular Assist System. The system is comprised of a single-use centrifugal blood pump, a motor, a primary drive console, a back up drive console and cannulae. Blood from the failing heart is directed from the ventricle or the atrium to the inlet of the pump via an inlet cannula. Blood exits through the outlet port of the pump through the outlet cannula ultimately to the pulmonary or systemic circulation. The system can be used in either a right, left or biventricular configuration.

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
Survival
Time Frame: 30 days post-support or to hospital discharge, whichever is longer OR to induction of anesthesia for implantation of a long-term device or heart transplant
Number of patients alive 30 days after device implantation
30 days post-support or to hospital discharge, whichever is longer OR to induction of anesthesia for implantation of a long-term device or heart transplant

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
Improvement in Central Venous Pressure (CVP) and Mean Arterial Blood Pressure (MAP)
Time Frame: Mean CVP or MAP during support (up to 30 days) minus baseline CVP or MAP
Change in mean CVP while on pump support and in MAP during pump support. CVP and MAP were measured daily during pump support and the mean CVP and MAP during pump support were compared to baseline. Mean CVP or MAP during support (up to 30 days) minus baseline CVP or MAP.
Mean CVP or MAP during support (up to 30 days) minus baseline CVP or MAP

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.
Abbott Medical Devices

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.
Thoratec Corporation

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.
October 1, 2008

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.
May 1, 2013

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.
September 1, 2013

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).
January 8, 2009

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.
January 8, 2009

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.
January 9, 2009

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.
June 27, 2022

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.
June 23, 2022

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.
June 1, 2022

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.
  • LXP-002

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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