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PrEcision Pacing in HFpEF: the PEP-HFpEF Trial

2026년 11월 9일 업데이트: Tufts Medical Center

The PEP-HFpEF study is a prospective, single-center mechanistic study evaluating personalized heart rate pacing (myPACE) in patients with heart failure with preserved ejection fraction (HFpEF) and existing cardiac physiologic pacemakers. Participants will undergo sequential periods of standard and personalized pacing with serial physiologic assessments to evaluate the effects of myPACE on exercise capacity, cardiac function, biomarkers, quality of life, and clinical outcomes.

연구 개요

상태

모병

정황

개입 / 치료

연구 유형

중재적

등록 (추정된)

36

단계

  • 해당 없음

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 연락처

연구 장소

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

18년 이상 (성인, 고령자)

건강한 자원 봉사자를 받아들입니다

아니

연구 대상 성별

모두

설명

Inclusion Criteria:

  • Age ≥18 years.
  • Diagnosis of heart failure with preserved ejection fraction (HFpEF), defined as left ventricular ejection fraction (LVEF) ≥50% with symptoms and signs consistent with heart failure as determined by the treating investigator.
  • New York Heart Association (NYHA) Class II or III symptoms despite stable, maximally tolerated guideline-directed medical therapy.
  • Pre-existing FDA-approved cardiac physiologic pacemaker (e.g., conduction system pacing or cardiac resynchronization therapy) implanted for a standard clinical indication and capable of individualized lower-rate programming.
  • Expected to require ongoing pacemaker therapy throughout the study period.
  • Clinically stable at enrollment, without recent major changes in heart failure status that, in the opinion of the investigator, would interfere with interpretation of study outcomes.
  • Able and willing to provide written informed consent.
  • Able and willing to comply with all study procedures, including pacemaker programming, cardiopulmonary exercise testing (CPET), echocardiography, blood pressure measurements, autonomic testing, blood collection, and follow-up visits.

Exclusion Criteria:

  • Age <18 years.
  • Left ventricular ejection fraction <50%.
  • Pregnancy, breastfeeding, or women of childbearing potential unwilling to use an acceptable method of contraception during study participation.
  • Inability or unwillingness to provide informed consent.
  • Inability to safely perform study procedures, including CPET or autonomic testing, in the opinion of the investigator.
  • Any medical condition or life expectancy that, in the opinion of the investigator, would make participation unsafe or would substantially interfere with completion of the study or interpretation of study results.
  • Enrollment in another interventional clinical trial that, in the opinion of the investigators, could interfere with this study or confound interpretation of the results.
  • Prisoners, wards of the state, or other individuals for whom participation would not be permissible under applicable regulations or institutional policy.

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 주 목적: 치료
  • 할당: 해당 없음
  • 중재 모델: 단일 그룹 할당
  • 마스킹: 없음(오픈 라벨)

무기와 개입

참가자 그룹 / 팔
개입 / 치료
실험적: Individualized myPACE Pacing

Participants will undergo a 3-month baseline period with their pacemaker programmed to standard-of-care settings (lower rate limit of 60 beats per minute), followed by individualized programming using the myPACE heart-rate algorithm for 12 months. Following completion of the 12-month intervention period, pacemakers will be reprogrammed to standard-of-care settings (60 bpm) for an additional 3 months. Participants will undergo study assessments and monitoring throughout the entire 18-month study period.
장치: Individualized myPACE pacemaker programming

The myPACE intervention uses an individualized heart-rate algorithm to determine a personalized pacemaker backup rate within the normal range of adult resting heart rates. The algorithm estimates an individualized resting heart rate based on participant height and left ventricular ejection fraction (LVEF). The algorithm is designed to provide a modest increase in resting heart rate tailored to individual physiologic characteristics, including LVEF.

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Peak Oxygen Consumption (Peak VO₂)
기간: Baseline, 12 months

Change in peak oxygen consumption (peak VO2) during upright bicycle cardiopulmonary exercise testing (CPET), from conventional 60 bpm pacing (at baseline) to personalized physiologic pacing (myPACE) (at 12 months). Peak VO2 will be measured in mL/kg/min.
Baseline, 12 months

2차 결과 측정

결과 측정
측정값 설명
기간
Ventilatory Efficiency (VE/VCO₂ Slope)
기간: Baseline, 12 months

Change in the VE/VCO₂ slope during upright bicycle CPET from conventional pacing at 60 bpm to personalized physiologic pacing (myPACE).
Baseline, 12 months
Oxygen Pulse
기간: Baseline, 12 months

Change in oxygen pulse during upright bicycle CPET from conventional pacing at 60 bpm to personalized physiologic pacing (myPACE), measured in mL/beat.
Baseline, 12 months
Arterial Elastance (Ea)
기간: Baseline, 12 months

Change in arterial elastance (Ea), measured in mmHg/mL, calculated from echocardiographic measurements and non-invasive blood pressure measurements, from conventional pacing at 60 bpm at baseline to personalized physiologic pacing (myPACE) at 12 months.
Baseline, 12 months
End-Systolic Elastance (Ees)
기간: Baseline, 12 months

Change in end-systolic elastance (Ees), measured in mmHg/mL, calculated from echocardiographic measurements and non-invasive blood pressure measurements, from conventional pacing at 60 bpm at baseline to personalized physiologic pacing (myPACE) at 12 months.
Baseline, 12 months
Ventriculo-Arterial Coupling (Ea/Ees Ratio)
기간: Baseline, 12 months

Change in the Ea/Ees ratio, calculated from arterial elastance (Ea) and end-systolic elastance (Ees), from conventional pacing at 60 bpm at baseline to personalized physiologic pacing (myPACE) at 12 months.
Baseline, 12 months
Low-Frequency Blood Pressure Variability
기간: Baseline, 12 months

Change in low-frequency blood-pressure variability during standardized autonomic nervous system testing from conventional pacing at 60 bpm at baseline to personalized physiologic pacing (myPACE) at 12 months.
Baseline, 12 months
Orthostatic Blood Pressure Recovery
기간: Baseline, 12 months

Change in orthostatic blood pressure recovery during standardized autonomic nervous system testing from conventional pacing at 60 bpm at baseline to personalized physiologic pacing (myPACE) at 12 months.
Baseline, 12 months
Passive Leg Raise Response
기간: Baseline, 12 months

Change in the passive-leg-raise response during standardized autonomic nervous system testing from conventional pacing at 60 bpm at baseline to personalized physiologic pacing (myPACE) at 12 months.
Baseline, 12 months
NTproBNP
기간: Baseline, 6 months, 12 months, 15 months

NTproBNP level change from baseline to 12 months
Baseline, 6 months, 12 months, 15 months
Minnesota Living with Heart Failure Questionnaire Score
기간: Baseline, 12 months

Change in total score on the Minnesota Living with Heart Failure Questionnaire (MLHFQ), a 21-item questionnaire assessing the impact of heart failure on health-related quality of life. The total score ranges from 0 to 105, with higher scores indicating worse health-related quality of life and greater impairment. Change in total score will be assessed from baseline to 12 months to evaluate the effect of personalized physiologic pacing compared with conventional pacing at 60 beats per minute.
Baseline, 12 months
Hospitalization or Invasive Outpatient Intervention for Heart Failure
기간: Through 18 months

Throughout the duration of the study the study team will review intercurrent clinical management events that may occur as part of the natural history and clinical management of HFpEF, including hospitalization or invasive outpatient intervention for heart failure.
Through 18 months
Heart Failure Management Events
기간: Through 18 months

Changes in heart failure management, including diuretic initiation, dose escalation, reduction, or discontinuation, and urgent medical visits for heart failure. Clinical events will be assessed through participant interviews and medical record review throughout study participation and formally assessed during each follow-up Assessment Window.
Through 18 months
Abnormal Heart Rhythm Management Events
기간: Through 18 months

Throughout the duration of the study the study team will record changes in abnormal heart rhythm management, including initiation of antiarrhythmic medication, cardioversion, ablation, urgent medical visits for abnormal heart rhythms, or hospitalization for abnormal heart rhythms. Clinical events will be assessed through participant interviews and medical record review throughout study participation and formally assessed during each follow-up Assessment Window.
Through 18 months
Serious Cardiovascular Events
기간: Through 18 months

Throughout the duration of the study the study team will review serious cardiovascular events, including heart attack, stroke, or death. Clinical events will be assessed through participant interviews and medical record review throughout study participation and formally assessed during each follow-up Assessment Window.
Through 18 months

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

스폰서

Tufts Medical Center

수사관

  • 수석 연구원: Margaret Infeld, MD, MS, Tufts Medical Center

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (추정된)

2026년 11월 1일

기본 완료 (추정된)

2029년 3월 1일

연구 완료 (추정된)

2029년 9월 1일

연구 등록 날짜

최초 제출

2026년 8월 14일

QC 기준을 충족하는 최초 제출

2026년 10월 2일

처음 게시됨 (실제)

2026년 10월 8일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2026년 11월 10일

QC 기준을 충족하는 마지막 업데이트 제출

2026년 11월 9일

마지막으로 확인됨

2026년 11월 1일

추가 정보

이 연구와 관련된 용어

키워드

추가 관련 MeSH 약관

기타 연구 ID 번호

  • STUDY00007273: PEP-HFpEF
  • 26CDA1621876 (기타 보조금/기금 번호: American Heart Association)

약물 및 장치 정보, 연구 문서

미국 FDA 규제 의약품 연구

아니

미국 FDA 규제 기기 제품 연구

예

미국에서 제조되어 미국에서 수출되는 제품

아니

이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .

구독하다