Efficacy Study of Pacemakers to Treat Slow Heart Rate in Patients With Heart Failure (RAPID-HF)

March 31, 2023 updated by: Barry Borlaug, Mayo Clinic

Rate-Adaptive Atrial Pacing In Diastolic Heart Failure (RAPID-HF)

Determine the impact of restoring normal heart rate response during exercise and daily activity in patients with heart failure and a preserved ejection fraction (HFpEF) and chronotropic incompetence (CI).

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
    • Minnesota
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic in Rochester

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

  1. Age >18 years and able to provide informed consent to enroll in the trial, or consent through a legal guardian or power of attorney.
  2. Previous clinical diagnosis of HF with current NYHA Class II-III symptoms
  3. At least one of the following: Hospitalization for decompensated HF, Acute treatment for HF with intravenous loop diuretic or hemofiltration, Chronic treatment with a loop diuretic for control of HF symptoms + left atrial enlargement on echocardiography or E/e' ratio (≥14 average, ≥15 septal ) on echocardiography, Resting PCWP >15 mm Hg or LV end-diastolic pressure >18 mmHg at catheterization for dyspnea and/or exercise PCWP/LV end-diastolic pressure >25 mmHg, or Elevated NT-proBNP level (≥300 pg/ml )
  4. Left ventricular EF ≥40% within 12 months with clinical stability
  5. Stable cardiac medical therapy for ≥30 days
  6. Sinus rhythm
  7. Chronotropic incompetence on recent (within 6 months) clinical or screening exercise test, defined as heart rate reserve (HRR) <0.80 or <0.62 if on beta blockers
  8. Meet both screening criteria on clinically-performed cardiopulmonary exercise testing within 12 months.

Exclusion Criteria

  1. Inability to exercise, or non-cardiac condition that precludes exercise testing
  2. Any contraindication to a pacemaker system
  3. Non-cardiac condition limiting life expectancy to less than one year
  4. Significant left sided structural valve disease (>mild stenosis, >moderate regurgitation)
  5. Hypertrophic cardiomyopathy
  6. Infiltrative or inflammatory myocardial disease (amyloid, sarcoid)
  7. Pericardial disease
  8. Non-group 2 pulmonary arterial hypertension
  9. Chronic stable exertional angina
  10. Acute coronary syndrome or revascularization within 60 days
  11. Other clinically important causes of dyspnea
  12. Atrial fibrillation
  13. PR interval >210 msec
  14. Resting heart rate (HR) > 100 bpm
  15. A history of reduced ejection fraction (EF<40%)
  16. Advanced chronic kidney disease (GFR < 20 ml/min/1.73m2 by modified MDRD equation)
  17. Women of child bearing potential without negative pregnancy test and effective contraception
  18. Severe anemia (Hemoglobin <10 g/dL)
  19. Severe hepatic disease
  20. Complex congenital heart disease
  21. Listed for cardiac transplantation
  22. Other class I indications for pacing

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: Crossover Assignment
  • Masking: Quadruple

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: Pacing off first, then pacing on
No-pacing on for the first for 4 weeks, followed by 4 week washout period, and then cross-over to pacing on for an additional 4 weeks.
Device: Pacemaker system will be implanted but set to Pacing Off.
The identical pacing system will be implanted, but will be set to Pacing Off.
Other Names:
  • Medtronic CapSureFix MRI model 5086
  • Medtronic Azure XT DR MRI model W1DR01
Device: Rate adaptive atrial pacing using a dual-chamber pacemaker
The Azure XT DR is a permanent, dual-chamber cardiac pacemaker with the ability to continuously monitor and record patient activity, and respond to activity by pacing faster and increasing the heart rate (rate adaptive atrial pacing). It will be programmed in AAIR mode to pace the right atrium. The leads will be placed in the right atrium and right ventricle using CapSureFix model 5086.
Other Names:
  • Medtronic Azure XT DR MRI pacemaker model W1DR01
  • Medtronic CapSureFix MRI model 5086
Experimental: Pacing on first, then pacing off
Pacing on for the first for 4 weeks, followed by 4 week washout period, and then cross-over to pacing off for an additional 4 weeks
Device: Pacemaker system will be implanted but set to Pacing Off.
The identical pacing system will be implanted, but will be set to Pacing Off.
Other Names:
  • Medtronic CapSureFix MRI model 5086
  • Medtronic Azure XT DR MRI model W1DR01
Device: Rate adaptive atrial pacing using a dual-chamber pacemaker
The Azure XT DR is a permanent, dual-chamber cardiac pacemaker with the ability to continuously monitor and record patient activity, and respond to activity by pacing faster and increasing the heart rate (rate adaptive atrial pacing). It will be programmed in AAIR mode to pace the right atrium. The leads will be placed in the right atrium and right ventricle using CapSureFix model 5086.
Other Names:
  • Medtronic Azure XT DR MRI pacemaker model W1DR01
  • Medtronic CapSureFix MRI model 5086

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
Change in Oxygen Consumption (VO2) at Ventilatory Anaerobic Threshold (VAT)
Time Frame: baseline, after 4 weeks of treatment
Maximal effort cardiopulmonary exercise testing was performed on a treadmill after 4 weeks of pacing-on and after 4 weeks of pacing-off to measure volumes of oxygen consumed (VO2). Change in VO2 at anaerobic threshold (VO2,AT) determined by the V-Slope method as the point of disproportionate rise in VCO2 relative to VO2 as measured in ml/kg/min.
baseline, after 4 weeks of treatment

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
Peak Aerobic Capacity (Peak VO2)
Time Frame: 4 weeks after pacemaker activation
Determined as the mean of values obtained over the final 30 seconds of exercise. Maximal effort cardiopulmonary exercise testing was performed on a treadmill after 4 weeks of pacing-on and after 4 weeks of pacing-off to measure volumes of oxygen consumed (VO2). As measured in ml/kg/min.
4 weeks after pacemaker activation
Ventilatory Efficiency (VE/VCO2)
Time Frame: 4 weeks
Determined as the nadir of VE/VCO2 ratio during exercise. Maximal effort cardiopulmonary exercise testing was performed on a treadmill after 4 weeks of pacing-on and after 4 weeks of pacing-off to measure volumes of oxygen consumed (VO2).
4 weeks
Change in Plasma N-terminal Pro B-type Natriuretic Peptide (NT-proBNP)
Time Frame: baseline, after 4 weeks of treatment
Change in plasma NT-proBNP as measured in pg/mL. Natriuretic peptides are substances made by the heart. A main type of these substances is NT-proBNP. Elevated levels can mean the heart isn't pumping as much blood the body needs.
baseline, after 4 weeks of treatment
Change in Kansas City Cardiomyopathy Questionnaire (KCCQ) Overall Summary Score
Time Frame: baseline, after 4 weeks of treatment
Change from baseline in KCCQ-overall summary score was reported. KCCQ was a 23-item, self-administered questionnaire that measure the participant's perception of their health status, including their heart failure (HF) symptoms, impact on physical and social function and how their HF impacts the quality of life. KCCQ quantifies 7 domains: physical limitations (6 items), symptom stability (1 item), symptom frequency (4 items), symptom burden (3 items), self-efficacy (2 items), quality of life (3 items) and social limitations (4 items). Scores were generated for each domain and scaled from 0 to 100, with 0 denoting the worst and 100 the best possible status. KCCQ- overall summary score was average of domains- physical limitation, total symptoms (average of symptom frequency and symptom burden), quality of life, and social limitation, and transformed to a single score which ranged from 0 (worst) -100 (the best possible status), where the higher score reflected better health status.
baseline, after 4 weeks of treatment

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
Mean Peak Heart Rate (HR)
Time Frame: 4 weeks
Determined as the maximum heart rate . Heart rate (or pulse rate) is the frequency of the heartbeat measured by the number of contractions of the heart per minute (beats per minute, or bpm).
4 weeks

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.
Mayo Clinic

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.
Medtronic

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.

Helpful Links

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.
April 7, 2014

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 9, 2022

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.
May 9, 2022

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).
May 20, 2014

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.
May 20, 2014

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.
May 22, 2014

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.
April 5, 2023

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.
March 31, 2023

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, 2023

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.
  • 13-008306

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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.

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