Prevention of Non-Surgical Bleeding by Management of HeartMate II Patients Without Antiplatelet Therapy (PREVENT II)

June 23, 2022 updated by: Abbott Medical Devices
This study is a prospective, multi-center, randomized, double-blind placebo-controlled study of subjects receiving the HM II LVAD as per the current FDA approved indications for use.

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

This is a post-market clinical study of HM II patient management practices to be conducted in the United States.

Subjects will be randomized in a 1:1 fashion to the following research drug groups:

  1. Treatment Arm: Warfarin (INR target: 2.0-2.5, median: 2.25) + Placebo (1 pill/day)
  2. Control Arm: Warfarin (INR target: 2.0-2.5, median: 2.25) + ASA Therapy (81mg/day)

The study will investigate if subjects in the Treatment Arm experience a reduced incidence of non-surgical bleeding, without an increased risk of thromboembolic events.

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.
72

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.
  • Phase 4

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

  • Canada
      • Quebec, Canada, G1V 4G5
        • Institut de Cardiologie de Quebec (Hôpital Laval)
    • Quebec
      • Montreal, Quebec, Canada, H1T 1C8
        • Institut de Cardiologie de Montreal (Montreal Heart Inst.)
  • United States
    • Alabama
      • Birmingham, Alabama, United States, 35249
        • University of Alabama Hospital at Birmingham (UAB)
    • California
      • Los Angeles, California, United States, 90095
        • Ronald Reagan UCLA Medical Center
      • San Diego, California, United States, 92123
        • Sharp Memorial Hospital
      • San Francisco, California, United States, 94131
        • University of California at San Francisco
    • District of Columbia
      • Washington, District of Columbia, United States, 20010
        • Washington Hospital Center
    • Florida
      • Gainesville, Florida, United States, 32610
        • Shands at the University of Florida
      • Orlando, Florida, United States, 32803
        • Florida Hospital
    • Georgia
      • Atlanta, Georgia, United States, 30309
        • Piedmont Hospital
    • Indiana
      • Indianapolis, Indiana, United States, 46240
        • St. Vincent Hospital
    • Kansas
      • Kansas City, Kansas, United States, 66160
        • Kansas University Medical Center
    • Louisiana
      • New Orleans, Louisiana, United States, 70121
        • Ochsner Medical Center
    • Massachusetts
      • Boston, Massachusetts, United States, 02111
        • Tufts Medical Center
    • Michigan
      • Detroit, Michigan, United States, 48202
        • Henry Ford Hospital
    • Minnesota
      • Minneapolis, Minnesota, United States, 55455
        • University of Minnesota Medical Center Fairview
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic
    • New York
      • Bronx, New York, United States, 10467
        • Montefiore Medical Center
      • New York, New York, United States, 10032
        • New York Presbyterian Hospital/Columbia University
      • Rochester, New York, United States, 14642
        • University of Rochester Medical Center
      • Stony Brook, New York, United States, 11790
        • Stony Brook University Medical Center
      • Valhalla, New York, United States, 10595
        • Westchester Medical Center
    • North Carolina
      • Chapel Hill, North Carolina, United States, 27599
        • University of North Carolina at Chapel Hill
    • Ohio
      • Cincinnati, Ohio, United States, 45219
        • Christ Hospital
      • Columbus, Ohio, United States, 43210
        • Ohio State University
    • Oklahoma
      • Oklahoma City, Oklahoma, United States, 73112
        • INTEGRIS Baptist Medical Center
    • Oregon
      • Portland, Oregon, United States, 97225
        • Providence St. Vincent
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19107
        • Thomas Jefferson University Hospital
      • Philadelphia, Pennsylvania, United States, 19140
        • Temple University Hospital
    • South Carolina
      • Columbia, South Carolina, United States, 29203
        • Palmetto Health Richland
    • Tennessee
      • Memphis, Tennessee, United States, 38120
        • Baptist Memorial Hospital
    • Texas
      • Austin, Texas, United States, 78705
        • Seton Medical Center
      • Dallas, Texas, United States, 75246
        • Baylor University Hospital
      • Houston, Texas, United States, 77030
        • Memorial Hermann
    • 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

50 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria

  • Subject is receiving the HM II per standard of care (SOC) in accordance with the FDA approved indications for use
  • Subject is ≥ 50 years of age
  • Subject is receiving the HM II as their first LVAD
  • Subject or legally authorized representative (LAR) has signed an informed consent form (ICF).

Exclusion Criteria

  • Existence of ongoing mechanical circulatory support (MCS) other than intra-aortic balloon pump or Impella® devices
  • Participation in any other clinical investigation(s) involving an MCS device, or an investigation(s) that is likely to confound study results or affect study outcome
  • Antiplatelet therapy is mandated for other conditions, in particular: a) recent coronary artery stenting (≤ 6 months), b) carotid artery disease, and c) other conditions where the investigator is not comfortable leaving subjects off-ASA or starting ASA post LVAD implantation. In situations where the investigator is uncertain, the Steering Committee can provide recommendation to the investigator as needed.
  • Subjects in whom heart transplantation is expected in ≤ 6 months
  • Subjects with a known ASA allergy

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

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: Treatment Arm
Warfarin (INR Target 2.0-2.5, median 2.25, per standard of patient care) + placebo (1 pill/day) post HeartMate II implant
Device: HeartMate II (HMII)
Left Ventricular Assist Device
Drug: Warfarin
(INR Target 2.0-2.5, median 2.25, per standard of patient care)
Other Names:
  • Coumadin
Active Comparator: Control Arm
Warfarin (INR Target 2.0-2.5, median 2.25, per standard of patient care) + acetylsalicylic acid (ASA) therapy (81mg/day) post HeartMate II implant
Device: HeartMate II (HMII)
Left Ventricular Assist Device
Drug: Warfarin
(INR Target 2.0-2.5, median 2.25, per standard of patient care)
Other Names:
  • Coumadin
Drug: acetylsalicylic acid (ASA) therapy
(81mg/day)
Other Names:
  • Aspirin

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 Endpoint: % of Patients With Non-surgical Bleeding at 6 Months Post HeartMate II Implant
Time Frame: 6 months post initial implantation
Composite incidence of non-surgical bleeding at 6 months post initial implantation, including but not limited to gastrointestinal, genitourinary, epistaxis, subdural hematoma, and primary hemorrhagic stroke (not due to ischemic conversion, or due to the treatment of a hemolysis/suspected thrombosis event).
6 months post initial implantation
Efficacy Endpoint: % of Patients With Thromboembolic Events at 6 Months Post HeartMate II Implant
Time Frame: 6 months post initial implantation
Composite incidence of pump thrombosis and thromboembolic stroke at 6 months post initial implantation, including ischemic stroke, or hemorrhagic stroke due to an ischemic conversion/treatment of hemolysis/pump thrombosis event.
6 months post initial implantation

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
Descriptive Endpoint: Percent of Patients With Adverse Events at 1-year Post HeartMate II Implant
Time Frame: 12 months post-implant
Rates of bleeding, gastrointestinal (GI) bleeding, suspected and confirmed pump thrombosis, stroke, hemolysis, anticoagulation, survival.
12 months post-implant
Adherence to Prevention of HeartMate II Pump Thrombosis Through Clinical Management (PREVENT) Study Recommended Practices
Time Frame: 12 months post-implant
The PREVENT recommended practices have three objectives: maximizing flow through the pump, reducing the risk of cannula malposition, and ensuring adequate anticoagulation while on left ventricular device support, with the overall goal of reducing pump thrombosis events. These implant techniques are similar to those in the HeartMate II instructions for use, but with modifications derived from clinical experience.
12 months post-implant

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

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.
  • Study Director: Daniel Crandall, Abbott

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.
November 1, 2016

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.
February 21, 2019

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.
July 18, 2019

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).
July 12, 2016

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.
July 18, 2016

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.
July 19, 2016

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.
  • SJM-CIP-10134

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

Yes

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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