NCT04721314

Brief Summary

Recent exploratory studies suggest that pacemaker patients with diastolic dysfunction (DD) or heart failure with preserved ejection fraction (HFpEF) may benefit from a higher backup heart rate (HR) setting than the factory setting of 60 beats per minute (bpm). In this prospective double-blinded randomized controlled study, pacemaker patients with DD or overt HFpEF and either 1) intrinsic ventricular conduction or 2) conduction system or biventricular pacing will be enrolled and randomized to either a personalized lower HR setting (myPACE group, based on a height-based HR algorithm) or to the standard 60bpm backup setting (control group) for 1 year.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
123

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jul 2019

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 17, 2019

Completed
1.5 years until next milestone

First Submitted

Initial submission to the registry

January 16, 2021

Completed
6 days until next milestone

First Posted

Study publicly available on registry

January 22, 2021

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 30, 2021

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

December 5, 2021

Completed
Last Updated

February 9, 2022

Status Verified

February 1, 2022

Enrollment Period

2.3 years

First QC Date

January 16, 2021

Last Update Submit

February 8, 2022

Conditions

Keywords

Heart failure with preserved ejection fractionDiastolic dysfunctionResting heart ratePersonalizedLower rate setting

Outcome Measures

Primary Outcomes (1)

  • Minnesota Living with Heart Failure Questionnaire Score

    Change in score from baseline (at enrollment) to 1 month and 12 months after enrollment.

    Baseline, 1 month, and 12 months

Secondary Outcomes (7)

  • NTproBNP

    Baseline, 1 month

  • Hospitalization or invasive outpatient intervention for heart failure

    At 12 months

  • Atrial Arrhythmia Burden

    At 12 months

  • Loop diuretic initiation or up-titration

    At 12 months

  • Anti-arrhythmic initiation or up-titration

    At 12 months

  • +2 more secondary outcomes

Study Arms (2)

Lower rate set to a higher, personalized backup heart rate (myPACE)

EXPERIMENTAL

Patients randomized to this group will have their pacemaker lower heart rate setting programmed to a personalized lower rate based on a resting heart rate algorithm.

Device: Adjustment of lower rate limit

Lower rate left at 60 beats-per-minute

ACTIVE COMPARATOR

Patients randomized to this group will have their pacemaker lower heart rate setting left at or programmed to the conventional pacemaker lower rate setting of 60bpm.

Device: Maintenance of lower rate limit

Interventions

Patients with preserved ejection fraction (EF \>50%) and implanted pacemakers will have the lower rate limit adjusted to a personalized heart rate based on a heart rate algorithm.

Lower rate set to a higher, personalized backup heart rate (myPACE)

Lower rate limit will be maintained at 60 beats-per-minute

Lower rate left at 60 beats-per-minute

Eligibility Criteria

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

You may qualify if:

  • Implanted pacemaker with either 1) intrinsic ventricular conduction or 2) conduction system or biventricular pacing or 3) RV pacing \<2% and paced QRS duration \<150ms
  • Clinical evidence of heart failure with preserved ejection fraction or diastolic dysfunction, based on:
  • dyspnea with exertion
  • or NYHA Class ≥ II heart failure
  • or pulmonary edema on prior chest imaging or documented on exam
  • or is taking loop diuretics for heart failure
  • or had NTproBNP \>400 ng/ml in the last 24 months
  • or a heart failure hospitalization in the last 2 years
  • or has diastolic dysfunction on echo
  • or has left ventricular hypertrophy on echo
  • or has left atrial (LA) dilation (LA volume/BSA index \>28ml/m2)

You may not qualify if:

  • Left ventricular ejection fraction \< 50%
  • Life expectancy \< 12 months
  • Symptomatic pulmonary disease on home oxygen
  • Uncontrolled hypertension as defined by blood pressure \>160/100 mmHg on two checks ≥15 minutes apart
  • Hypertrophic cardiomyopathy
  • More than moderate valvular disease
  • Aortic valve replacement \< 1 year
  • Angina pectoris
  • Creatinine \> 2
  • Hemoglobin \< 8 g/dL
  • Participation in another clinical trial or registry study
  • Inability to follow up for regularly scheduled pacemaker appointments or to follow up for this study
  • Pregnant patients or patients of childbearing age without reliable contraceptive agent (intra-uterine device, birth control implant, compliance with contraception injections or contraception pills) for the duration of study participation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Vermont Medical Center

Burlington, Vermont, 05401, United States

Location

Related Publications (2)

  • Infeld M, Cyr J, Novelli AE, Rawlings R, Wahlberg K, Plante TB, de Lavallaz JDF, Habel N, Lustgarten DL, Meyer M. Clinical Outcomes With Personalized Accelerated Physiologic Pacing in Heart Failure With Preserved Ejection Fraction: Follow-up of the myPACE Trial. JAMA Cardiol. 2025 Oct 1;10(10):1010-1015. doi: 10.1001/jamacardio.2025.2827.

  • Infeld M, Wahlberg K, Cicero J, Plante TB, Meagher S, Novelli A, Habel N, Krishnan AM, Silverman DN, LeWinter MM, Lustgarten DL, Meyer M. Effect of Personalized Accelerated Pacing on Quality of Life, Physical Activity, and Atrial Fibrillation in Patients With Preclinical and Overt Heart Failure With Preserved Ejection Fraction: The myPACE Randomized Clinical Trial. JAMA Cardiol. 2023 Mar 1;8(3):213-221. doi: 10.1001/jamacardio.2022.5320.

MeSH Terms

Conditions

Heart Failure, Diastolic

Condition Hierarchy (Ancestors)

Heart FailureHeart DiseasesCardiovascular Diseases

Study Officials

  • Markus Meyer, MD, PhD

    University of Minnesota

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
All investigators are blinded to patient randomization. To assess subject blinding, participants are asked at 1 month and 12 month follow up if they believed that their pacemaker lower rate was changed.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Patients are randomized to either a personalized pacemaker lower heart rate setting based on a resting heart rate algorithm or to the conventional pacemaker lower rate setting of 60bpm.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Physician

Study Record Dates

First Submitted

January 16, 2021

First Posted

January 22, 2021

Study Start

July 17, 2019

Primary Completion

October 30, 2021

Study Completion

December 5, 2021

Last Updated

February 9, 2022

Record last verified: 2022-02

Data Sharing

IPD Sharing
Will not share

Locations