CardioMEMS HF System Post Approval Study

April 16, 2024 updated by: Abbott Medical Devices
The purpose of the CardioMEMS HF System Post Approval Study (PAS) is to evaluate the use of the CardioMEMS HF System in patients with NYHA class III heart failure in a commercial setting.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The primary objective of this study is to demonstrate the safety and to report clinical performance of the CardioMEMS™ HF System in real world setting.

Prospective, non-randomized, open-label, multi-center, post-market study designed to characterize the use of the CardioMEMS™ HF System in a real-world setting in the US; N=1200. It is the condition of approval study.

Study Type

Observational

Enrollment (Actual)

1214

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
    • West Virginia
      • Morgantown, West Virginia, United States, 26505
        • West Virginia Heart Institute

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

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

patients with NYHA class III heart failure

Description

Inclusion Criteria:

  • Diagnosis of NYHA class III heart failure
  • At least 1 heart failure hospitalization within previous 12 months
  • Patients with reduced LVEF heart failure should be receiving a beta blocker for 3 months and an ACE-I or ARB for one month unless in the investigator's opinion, the patient is intolerant to beta blockers, ACE-I or ARB
  • BMI ≤ 35. Patients with BMI >35 will require their chest circumference to be measured at the axillary level. If > 65 inches the patient will not be eligible for the study.
  • Pulmonary artery branch diameter ≥ 7mm - (implant target artery - assessed during the right heart catheterization)

Exclusion Criteria:

  • Active infection
  • History of recurrent (> 1) pulmonary embolism or deep vein thrombosis
  • Inability to tolerate a right heart catheterization
  • A major cardiovascular event (e.g., myocardial infarction, open heart surgery, stroke, etc.) within previous 2 months
  • Cardiac resynchronization device (CRT) implanted within previous 3 months
  • Glomerular Filtration Rate (GFR) < 25 ml/min (obtained within 2 weeks of implant) who are non-responsive to diuretic therapy or who are on chronic renal dialysis
  • Congenital heart disease or mechanical right heart valve
  • Likely to undergo heart transplantation or VAD within the next 6 months
  • Known coagulation disorders
  • Hypersensitivity or allergy to aspirin, and/or clopidogrel

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

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
CardioMEMS HF System Group
Patients implanted with a CardioMEMS HF System.
Device: CardioMEMS HF System
Pulmonary artery pressure sensor

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Freedom From Device and/or System Related Complication (DSRC)
Time Frame: two years
As defined in the study protocol, a DSRC is an adverse event that is, or is possibly, related to the device/system (wireless pressure sensor or external electronics) and has at least one of the following characteristics: is treated with invasive means (other than intramuscular medication or right heart catheterization which is used for diagnostic purposes); results in death of the subject; results in the explant of the device. The primary safety analyses were based on the following objective performance criteria: a) the lower limit of the two-sided 95% confidence interval on the freedom from DSRC rate at 24 months is greater than 80% and b) the lower limit of the two-sided 95% confidence interval on the freedom from pressure sensor failure rate at 24 months is greater than 90%. These primary safety endpoints were tested hierarchically, testing for freedom from DSRCs first, in order to control for multiplicity.
two years
Freedom From Pressure Sensor Failure
Time Frame: two year
A Sensor failure occurs when no readings can be obtained from it after troubleshooting the system to rule out any problems with the external electronics. The primary safety analyses were based on the following objective performance criteria: a) the lower limit of the two-sided 95% confidence interval on the freedom from DSRC rate at 24 months is greater than 80% and b) the lower limit of the two-sided 95% confidence interval on the freedom from pressure sensor failure rate at 24 months is greater than 90%. These primary safety endpoints were tested hierarchically, testing for freedom from DSRCs first, in order to control for multiplicity.
two year
Heart Failure Hospitalization (HFH) Rate
Time Frame: one year
Annualized HFH rate parameter at 1 year versus the HFH rate in the year prior to enrollment using an Andersen-Gill method for recurrent events and robust sandwich variances to account for within-subject correlation. If the two-sided, upper 95% confidence interval for the hazard ratio (HR) is less than 1.0, then the primary effectiveness endpoint was met.
one year

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Overall Survival
Time Frame: one and two years
Survival at 1 year and 24 years post-implant is reported using the Kaplan-Meier method.
one and two years
Heart Failure Hospitalization or Death Rate
Time Frame: one year
The annualized HFH or death rate parameter at 1 year was compared to the HFH rate in the year prior to enrollment using an Andersen-Gill method for recurrent events and robust sandwich variances to account for within-subject correlation. If the two-sided, upper 95% confidence interval for the hazard ratio (HR) is less than 1.0, then this effectiveness endpoint was met.
one year
Patient Compliance
Time Frame: One and Two Years
Total daily readings divided by total number possible for daily readings as well as total weekly readings divided by total possible weekly readings
One and Two Years
Training Evaluation - Freedom From DRSC in Academic and Community Hospitals
Time Frame: 2 Years
To assess the effectiveness of the training program, the safety and effectiveness results were analyzed for Academic Hospitals versus Community Hospitals.
2 Years
Training Evaluation - Freedom From Pressure Sensor Failure in Academic and Community Hospitals
Time Frame: 2 Years
To assess the effectiveness of the training program, the safety and effectiveness results were analyzed for Academic Hospitals versus Community Hospitals.
2 Years
Training Evaluation - HF Hospitalizations Reduction in Academic and Community Hospitals
Time Frame: 2 Years
To assess the effectiveness of the training program, the safety and effectiveness results were analyzed for Academic Hospitals versus Community Hospitals.
2 Years

Collaborators and Investigators

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

Sponsor

Abbott Medical Devices

Investigators

  • Study Chair: Lynne Stevenson, MD, Brigham and Women's

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

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)

January 1, 2015

Primary Completion (Actual)

October 11, 2019

Study Completion (Actual)

October 11, 2019

Study Registration Dates

First Submitted

October 29, 2014

First Submitted That Met QC Criteria

October 29, 2014

First Posted (Estimated)

October 31, 2014

Study Record Updates

Last Update Posted (Actual)

April 17, 2024

Last Update Submitted That Met QC Criteria

April 16, 2024

Last Verified

April 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SJM-CIP-10035

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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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