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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03339310
Other study ID # CP OPT2017-005
Secondary ID FIX-HF-5C2
Status Completed
Phase N/A
First received
Last updated
Start date October 23, 2017
Est. completion date October 30, 2019

Study information

Verified date January 2020
Source Impulse Dynamics
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

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


Description:

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


Recruitment information / eligibility

Status Completed
Enrollment 60
Est. completion date October 30, 2019
Est. primary completion date October 30, 2019
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria:

- 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 ß-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 ß-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.

Exclusion Criteria:

- 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.

- 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.

Study Design


Intervention

Device:
Optimizer Smart System with 2-leads
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.

Locations

Country Name City State
Germany University Hospital gGmbH Bergmannsheil Bochum
United States Dallas VA Hospital Dallas Texas
United States Baptist Health Systems Lexington Illinois
United States Chan Heart Rhythm Institute Mesa Arizona
United States Southwest Cardiology Associates Mesa Arizona
United States Ochsner Clinic Foundation New Orleans Louisiana
United States Cardiovascular Consultants Phoenix Arizona
United States Arizona Arrhythmia Consultants Scottsdale Arizona
United States Pima Heart Physicians, PC Tucson Arizona
United States CHRISTUS Trinity Mother Frances Tyler Texas

Sponsors (1)

Lead Sponsor Collaborator
Impulse Dynamics

Countries where clinical trial is conducted

United States,  Germany, 

Outcome

Type Measure Description Time frame Safety issue
Primary 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. 24 weeks
Primary 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. 24 weeks
Secondary 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. 24 weeks
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