ClinicalTrials.gg
RecruitingNCT04504188OPT-BB WOMENUpdated Jul 24, 2024

Optimizing Beta Blocker Dosage in Women While Using the Wearable Cardioverter Defibrillator

An interventional study of Heart Rate Monitor Enhanced Treatment Optimization in Cardiomyopathies and Heart Failure, sponsored by Zoll Medical Corporation. Recruiting at 4 sites in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-07-24.

Sponsored by Zoll Medical Corporation · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Sep 2024, 2 years 2 months ago, but the record still lists the study as recruiting.
  • Started Mar 2021; still recruiting 5 years 8 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
300
Allocation
Not applicable
Ages
18 Years and older
Sex
Female
01

Study summary

The primary objective of this pilot study is to document the percentage achievement in effective HR control (average nighttime HR \< 70 bpm) during WCD use in a cohort of female patients with cardiomyopathy in an outpatient setting using continuous heart rate (HR) trends data from the WCD to optimize BB/ivabradine dosage, as compared to a prior historical control.

Read the detailed description

The primary objective of this pilot study is to document the percentage achievement in effective HR control (average nighttime HR \< 70 bpm) during WCD use in a cohort of female patients with cardiomyopathy in an outpatient setting using continuous heart rate (HR) trends data from the WCD to optimize BB/ivabradine dosage, as compared to a prior historical control.

Adult female patients (18 years or older) who are prescribed the wearable cardioverter defibrillator (WCD) for 3 months for ischemic or non-ischemic cardiomyopathy with a low ejection fraction.

Subjects will wear an FDA-approved WCD with a 3 month follow-up period. Heart rate (HR) will be continuously monitored by the WCD. Every two weeks a report showing daily HR trends will be emailed to the healthcare provider. The healthcare provider will also receive a HR control alert if the HR exceeds a predetermined threshold for 3 days in a row.

Based on this information, clinicians should follow guideline-directed medical therapy (GDMT) to add or titrate medication accordingly. The goal of these changes will be to achieve the average nighttime HR to recommended guidelines (\<70 bpm) by the end of WCD use.

02

Conditions studied

  • Cardiomyopathies
  • Heart Failure
03

In context

Cardiomyopathies

553 studies on the registry are indexed under Cardiomyopathies; 152 are open to participants now.

This study's planned enrollment of 300 is above the median of 51 across 266 interventional studies indexed under Cardiomyopathies.

Browse Cardiomyopathies studies →

Lead sponsor

Zoll Medical Corporation is the lead sponsor of 36 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria for Screening Phase:

  • Female patients with newly diagnosed (never hospitalized for HF in the last 30 days prior to enrollment) ischemic or non-ischemic cardiomyopathy and an EF ≤ 35% at the time of WCD prescription.
  • Patients prescribed the WCD for an intended 90 ± 14 days of use.
  • Patients have used the WCD for no more than 14 days from the day of consent.
  • Patients 18 years of age or older at the time of consent.

Inclusion Criteria for Continuation Phase:

-After the first 2 weeks of WCD wear, only actively wearing patients averaging at least 105 hours of WCD wear per week (or 15 hours/day) are eligible to continue.

Exclusion Criteria for Screening Phase:

  • Patients with a known or intolerance to beta-blocker therapy.
  • Patients with permanent atrial fibrillation.
  • Patients who have a pacemaker.
  • Patients with a current or prior implantable cardioverter defibrillator (ICD).
  • Patients who are self-reporting to be pregnant.
  • Patients with known congenital or inherited heart disease.
  • Patients participating in another interventional clinical trial.
  • Patients not expected to live longer than 3 months.

Exclusion Criteria for Continuation Phase:

-Patients ending WCD use within the first two weeks of use.

Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
300 participants (estimated)

Study arms

  • Experimental
    Heart Rate Monitor Enhanced Treatment Optimization

    Subjects will wear an FDA-approved WCD with a 3 month follow-up period. Heart rate (HR) will be continuously monitored by the WCD.

    Device: Heart Rate Monitor Enhanced Treatment Optimization

Interventions

  • DeviceHeart Rate Monitor Enhanced Treatment Optimization

    Heart rate (HR) will be continuously monitored by the WCD. Every two weeks a report showing daily HR trends will be emailed to the healthcare provider. The healthcare provider will also receive a HR control alert if the HR exceeds a predetermined threshold for 3 days in a row.

    Also known as: LifeVest Wearable Cardioverter Defibrillator

06

What researchers measure

Primary outcomes

  1. Heart Rate Control

    The primary objective of this study is to document the percentage achievement in effective HR control (average nighttime HR \< 70 bpm) during WCD use in female patients.

    Time frame: 90 days

Secondary outcomes

  1. Heart Rate Control in Ischemic vs. Non-ischemic Patients

    To document the percentage achievement in effective HR control in ischemic vs. non-ischemic patients

    Time frame: 90 days

  2. Change in Average Nighttime Resting Heart Rate

    Change in Average Nighttime Resting Heart Rate Monitored vs. Historic Heart Rate Control over the course of WCD use.

    Time frame: 90 days

  3. Changes in the Kansas City Cardiomyopathy Questionnaire (KCCQ-12)

    To observe changes in quality of life over the course of WCD use using the KCCQ-12 Questionnaire. Higher scores on the KCCQ reflect better health status (range 0-100)

    Time frame: 90 days

  4. Changes in (European Quality of Life 5 Dimension Questionnaire (EQ-5D-5L)

    To observe changes in quality of life over the course of WCD use using the EQ-5D-5L Questionnaire. Higher scores on the EQ-5D-5L reflect better health status (range 0-100)

    Time frame: 90 days

  5. Changes in Functional Capacity

    To observe changes in functional capacity as measured by average daily step count over the course of WCD use.

    Time frame: 90 days

07

Study locations

2 of 4 sites recruiting
  • TriHealth Hatton Research Institute
    Cincinnati, Ohio 45242, United States
    Recruiting
    • Kesari, MD · Contact
  • Texas Cardiology Associates of Houston
    Kingwood, Texas 77339, United States
    Terminated

    Not enrolling at this site.

  • CardioVoyage
    McKinney, Texas 75020, United States
    Recruiting
    • Abo-Auda, MD · Contact
  • CAMC
    Charleston, West Virginia 25304, United States
    Terminated

    Not enrolling at this site.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Mar 2021 (actual). Primary completion is estimated for Sep 2024, 42 months after the start.

Of 51 interventional studies with no phase under Cardiomyopathies, half reached primary completion within 39 months of starting (the median), counting those still running; a quarter within 23 and three quarters within 52. This study's planned 42 months is close to that.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 31, 2020
First posted
Aug 7, 2020
StartActual
Mar 8, 2021
Primary completionEst.
Sep 2024
CompletionEst.
Dec 2024
Last update
Jul 24, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 24, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04504188
Responsible party
Sponsor
First posted
Aug 7, 2020
Start date
Mar 8, 2021
Primary completion
Sep 2024 (estimated)
Completion
Dec 2024 (estimated)
Last update
Jul 24, 2024

Study contacts

Mike Osz
Contact
mosz@zoll.com
412-968-3333
Tara Roberts
Contact
tara.roberts@zoll.com
412-968-3333
Valentina Kutyifa, MD PHD
principal investigator · University of Rochester

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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