NCT06298669

Brief Summary

The study is a randomized, single-blind crossover prospective study in which investigators will determine the clinical outcomes of cardiac resynchronization therapy (CRT) pacing modalities in patients with left ventricular assist devices (LVAD). Only patients are blinded. This is a small-scale study from which future larger scale randomized controls can be performed. The primary endpoint will be the effect of BiV and RV pacing setting on the 6-minute walk test.

Trial Health

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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1

participants targeted

Target at below P25 for not_applicable heart-failure

Timeline
Completed

Started Aug 2023

Shorter than P25 for not_applicable heart-failure

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 9, 2023

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 10, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 10, 2023

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

March 1, 2024

Completed
6 days until next milestone

First Posted

Study publicly available on registry

March 7, 2024

Completed
9 months until next milestone

Results Posted

Study results publicly available

December 10, 2024

Completed
Last Updated

December 10, 2024

Status Verified

November 1, 2024

Enrollment Period

3 months

First QC Date

March 1, 2024

Results QC Date

November 15, 2024

Last Update Submit

November 15, 2024

Conditions

Keywords

Left Ventricular Assist Device (LVAD)Cardiac resynchronization therapy (CRT)

Outcome Measures

Primary Outcomes (1)

  • 6 Minute Walk Test Performance

    The distance walked over 6 minutes was measured at the baseline visit and the visit three months after baseline. The six month visit did not occur because the study was terminated.

    Baseline visit; Three-month visit

Secondary Outcomes (2)

  • EQ-5D-3L Quality of Life Score

    Baseline visit

  • Serum NT-PRO-BNP

    Baseline visit; Three-month visit

Study Arms (2)

Biventricular Pacing followed by Right Ventricular Pacing

EXPERIMENTAL

Subjects will be randomly assigned to the order of pacing interventions. After baseline testing (with their CRT device still in the subjects' baseline pacing modality), subjects assigned to BiV-first will have their CRT device reprogrammed to BiV pacing modality in the clinic. After undergoing three months of treatment in this pacing modality, they will return to clinic for retesting. The CRT device will then be reprogrammed to RV pacing for the next 3 months. Subjects will then again return to clinic for retesting, and their CRT device will be reprogrammed to their baseline pacing modality.

Device: Biventricular PacingDevice: Right Ventricular Pacing

Right Ventricular Pacing followed by Biventricular Pacing

EXPERIMENTAL

Subjects will be randomly assigned to the order of pacing interventions. After baseline testing (with their CRT device still in the subjects' baseline pacing modality), subjects assigned to RV-first will have their CRT device reprogrammed to RV pacing modality in the clinic. After undergoing three months of treatment in this pacing modality, they will return to clinic for retesting. The CRT device will then be reprogrammed to BiV pacing for the next 3 months. Subjects will then again return to clinic for retesting, and their CRT device will be reprogrammed to their baseline pacing modality.

Device: Biventricular Pacing

Interventions

The CRT device will be reprogrammed to coordinate contractions of the left and right ventricles.

Biventricular Pacing followed by Right Ventricular PacingRight Ventricular Pacing followed by Biventricular Pacing

The CRT device will be reprogrammed for right ventricular contractions.

Biventricular Pacing followed by Right Ventricular Pacing

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with both an LVAD and CRT device with functional leads
  • Age 18 years and older
  • Ability to walk
  • Ability to sign consent

You may not qualify if:

  • Patients with permanent atrial fibrillation
  • Patients who are pacemaker dependent
  • Patients with sustained ventricular tachycardia

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Indiana University Health Methodist Hospital

Indianapolis, Indiana, 46202, United States

Location

MeSH Terms

Conditions

Heart Failure

Interventions

Cardiac Resynchronization Therapy

Condition Hierarchy (Ancestors)

Heart DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

Cardiac Pacing, ArtificialElectric Stimulation TherapyTherapeutics

Results Point of Contact

Title
Maya Guglin
Organization
Rutgers

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Clinical Medicine

Study Record Dates

First Submitted

March 1, 2024

First Posted

March 7, 2024

Study Start

August 9, 2023

Primary Completion

November 10, 2023

Study Completion

November 10, 2023

Last Updated

December 10, 2024

Results First Posted

December 10, 2024

Record last verified: 2024-11

Data Sharing

IPD Sharing
Will not share

Locations