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Heart FailureFIX-HF-5C2NCT03339310

Evaluation of the Safety and Efficacy of the 2-lead OPTIMIZER® Smart System

A study testing Optimizer Smart System with 2-leads in people with Heart Failure and Congestive Heart Failure, run by Impulse Dynamics at 10 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a multicenter, prospective, single-arm study of the Optimizer Smart System with 2-leads Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Optimizer Smart System with 2-leads
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
10 sitesin 2 countries
Study dates
23 Oct 2017to 30 Oct 2019
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects who are 18 years of age or older
  • Subject is male or a non-pregnant female
  • Subjects who have a baseline ejection fraction greater than or equal to 25% and less than or equal to 45% by echocardiography determined by the echocardiography core laboratory.
  • Subjects who have been treated for heart failure for at least 90 days (including treatment with a β-blocker for at least 90 days unless the subject is intolerant) and are in New York Heart Association functional Class III and IV at the time of enrollment.
  • Subjects receiving appropriate, stable medical therapy during the 30 days prior to enrollment for treatment of heart failure according to guideline recommendations. For patients with EF≤35%, this regimen shall consist of the appropriate doses of diuretics, ACE-inhibitor or angiotensin II receptor blocker and β-blocker. Angiotensin receptor -neprilysin inhibitor (ARNI) may be substituted for ACE inhibitors or ARBs and Ivabradine may also be considered in subjects with a heart rate >70bpm. Stable is defined as no more than a 100% increase or 50% decrease in dose.
  • Subjects who, in the opinion of the Principal Investigator (based on the current guidelines for clinical practice), have a clinical indication for an implanted cardiac defibrillator (ICD, e.g., EF≤35%) and/or pacemaker, must have an existing device unless the patient refuses to undergo the implantation of such device for personal reasons.
  • Subjects who are willing and able to return for all follow-up visits.

Who cannot join

  • Subjects whose baseline peak VO2 is <9 or >20 ml O2/min/kg. The qualifying CPX test must be deemed adequate.
  • Subjects who have a potentially correctible cause of heart failure, such as valvular heart disease or congenital heart disease.
  • Subjects who have clinically significant angina pectoris, consisting of angina during daily life (i.e., Canadian Cardiovascular Society Angina score of II or more), an episode of unstable angina within 30 days before enrollment, or angina and/or ECG changes during exercise testing performed during baseline evaluation.
  • Subjects hospitalized for heart failure requiring acute treatment with intravenous loop diuretics, IV inotropes or hemofiltration within 30 days before enrollment and baseline testing or subjects receiving any form of positive inotropic support within 30 days before enrollment, including continuous IV inotrope therapy.
  • Subjects having a PR interval greater than 375ms.
  • Subjects whose exercise tolerance is limited by a condition other than heart failure (e.g., angina, COPD, peripheral vascular disease, orthopedic or rheumatologic conditions) or who are unable to perform baseline stress testing.
Show all 14Show fewer
  • Subjects who are scheduled for a CABG or a PTCA procedure, or who have undergone a CABG procedure within 90 days or a PTCA procedure within 30 days of enrollment.
  • Subjects who have a biventricular pacing system, an accepted indication for such a device, or a QRS width of 130ms or greater.
  • Subjects who have had a myocardial infarction within 90 days of enrollment.
  • Subjects who have mechanical tricuspid valve.
  • Subjects who have a prior heart transplant.
  • Subjects on dialysis.
  • Subjects who are participating in another experimental protocol.
  • Subjects who are unable to provide informed consent.

Trial locations and contacts

10 sites in 2 countries.

10 sites in 2 countries

United States9 sites
  • Dallas VA Hospital

    Dallas, Texas, 75216

  • Baptist Health Systems

    Lexington, Illinois, 40503

  • Chan Heart Rhythm Institute

    Mesa, Arizona, 85206

  • Southwest Cardiology Associates

    Mesa, Arizona, 85206

  • Ochsner Clinic Foundation

    New Orleans, Louisiana, 70121

  • Cardiovascular Consultants

    Phoenix, Arizona, 85032

  • Arizona Arrhythmia Consultants

    Scottsdale, Arizona, 85251

  • Pima Heart Physicians, PC

    Tucson, Arizona, 85712

  • CHRISTUS Trinity Mother Frances

    Tyler, Texas, 75701

Other trials in United States

Germany1 site
  • University Hospital gGmbH Bergmannsheil

    Bochum, 44789

Other trials in Germany

About this study

Official title: FIX-HF-5C2: Evaluation of the Safety and Efficacy of the 2-lead OPTIMIZER® Smart System in Subjects With Moderate-to-Severe Heart Failure With Ejection Fraction Between 25% and 45%

This is a multicenter, prospective, single-arm study of the Optimizer Smart System with 2-leads

Read the detailed description

This is a multicenter, prospective, single-arm treatment only confirmatory study of the 2-lead configuration of the Optimizer Smart System.

Being tested
Optimizer Smart System with 2-leads
Keywords
CCM Therapy, 2-Lead, FIX-HF-5C2, Optimizer
Medical subject headings
Heart Failure

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Optimizer Smart System with 2-leadsDevice

    Also called Optimizer Smart System

    The Optimizer Smart System with 2-leads delivers non-excitatory cardiac contractility modulating (CCM) electrical signals to the heart muscle. Implanted subjects receive five non-contiguous one-hour periods of CCM signals per day.

Study groups in NCT03339310
Study groupRoleWhat they receive
Optimizer Smart System with 2-leadsExperimentalAll eligible subjects will have the Optimizer Smart System implanted and receive cardiac contractility modulation therapy (CCM).
Receives: Device: Optimizer Smart System with 2-leads

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in exercise tolerance quantified by peak VO2 measured on cardiopulmonary exercise stress testing (CPX).

    Device efficacy will be assessed as change in exercise tolerance quantified by peak VO2 measured on cardiopulmonary exercise stress testing (CPX). Subjects on device under FIX-HF-5C2 protocol will be compared to subjects on control under FIX-HF-5C protocol with respect to peak V02 mean change at 24-weeks from baseline.

    Measured: 24 weeks

  2. Optimizer-device and -procedure related complication rate

    Subjects experiencing an Optimizer device- or procedure-related complication through the 24-week study period, as determined by an independent events committee.

    Measured: 24 weeks

Secondary outcomes (1)
  1. Total CCM delivery comparing 2 and 3-lead device configurations

    A comparison will be made between the Optimizer per-protocol groups in the FIX-HF-5C (3-lead) and FIX-HF-5C2 (2-lead) device configurations to show there is no difference between the amount of CCM therapy provided by the two device configurations. Total CCM delivery (effective hours delivered) will be evaluated at the end of 24 weeks following the Optimizer implantation.

    Measured: 24 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Nov 2017
  2. Study start23 Oct 2017
  3. Primary completion30 Oct 2019
  4. Study completion30 Oct 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
Optimizer Smart System
Masking
None (open label)
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03339310
Sponsor's protocol ID
CP OPT2017-005
Other IDs
FIX-HF-5C2
Acronym
FIX-HF-5C2
Status last verified
Jan 2020
First submitted
23 Oct 2017
Last updated
14 Jan 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes

Publications

  • Wiegn P, Chan R, Jost C, Saville BR, Parise H, Prutchi D, Carson PE, Stagg A, Goldsmith RL, Burkhoff D. Safety, Performance, and Efficacy of Cardiac Contractility Modulation Delivered by the 2-Lead Optimizer Smart System: The FIX-HF-5C2 Study. Circ Heart Fail. 2020 Apr;13(4):e006512. doi: 10.1161/CIRCHEARTFAILURE.119.006512. Epub 2020 Apr 8.

    PubMed 32264716

Questions about this trial

What is this clinical trial studying?

A study testing Optimizer Smart System with 2-leads in people with Heart Failure and Congestive Heart Failure, run by Impulse Dynamics at 10 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 14 Jan 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 10 sites in United States, Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in exercise tolerance quantified by peak VO2 measured on cardiopulmonary exercise stress testing (CPX). (time frame: 24 weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03339310, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Jan 2020.

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