PrEcision Pacing in HFpEF: the PEP-HFpEF Trial
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.
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Tipo di studio
Tipo di studio
Iscrizione (Stimato)
Iscrizione
Fase
Fase
- Non applicabile
Contatti e Sedi
Contatto studio
Contatto studio
- Nome: Courtney Uek
- Numero di telefono: 617-636-4354
- Email: courtney.uek@tuftsmedicine.org
Luoghi di studio
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Massachusetts
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Boston, Massachusetts, Stati Uniti, 02111
- Reclutamento
- Tufts Medical Center
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Contatto:
- Courtney Uek
- Numero di telefono: 617-636-4354
- Email: courtney.uek@tuftsmedicine.org
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Contatto:
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Investigatore principale:
- Margaret Infeld, MD, MS
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Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
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.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: N / A
- Modello interventistico: Assegnazione di gruppo singolo
- Mascheramento: Nessuno (etichetta aperta)
Numero di armi
Armi e interventi
Gruppo di partecipanti / ArmGruppo di partecipanti / Arm |
Intervento / TrattamentoIntervento / Trattamento |
|---|---|
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Sperimentale: 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. |
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. |
Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Peak Oxygen Consumption (Peak VO₂)
Lasso di tempo: Baseline, 12 months
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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
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Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Ventilatory Efficiency (VE/VCO₂ Slope)
Lasso di tempo: 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
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Oxygen Pulse
Lasso di tempo: Baseline, 12 months
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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
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Arterial Elastance (Ea)
Lasso di tempo: Baseline, 12 months
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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
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End-Systolic Elastance (Ees)
Lasso di tempo: Baseline, 12 months
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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
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Ventriculo-Arterial Coupling (Ea/Ees Ratio)
Lasso di tempo: Baseline, 12 months
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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
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Low-Frequency Blood Pressure Variability
Lasso di tempo: Baseline, 12 months
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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
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Orthostatic Blood Pressure Recovery
Lasso di tempo: Baseline, 12 months
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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
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Passive Leg Raise Response
Lasso di tempo: Baseline, 12 months
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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
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NTproBNP
Lasso di tempo: Baseline, 6 months, 12 months, 15 months
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NTproBNP level change from baseline to 12 months |
Baseline, 6 months, 12 months, 15 months
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Minnesota Living with Heart Failure Questionnaire Score
Lasso di tempo: Baseline, 12 months
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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
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Hospitalization or Invasive Outpatient Intervention for Heart Failure
Lasso di tempo: Through 18 months
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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
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Heart Failure Management Events
Lasso di tempo: Through 18 months
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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
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Abnormal Heart Rhythm Management Events
Lasso di tempo: Through 18 months
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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
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Serious Cardiovascular Events
Lasso di tempo: Through 18 months
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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
|
Collaboratori e investigatori
Sponsor
Sponsor
Investigatori
Investigatori
- Investigatore principale: Margaret Infeld, MD, MS, Tufts Medical Center
Studiare le date dei record
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Inizio studio (Stimato)
Inizio studio
Completamento primario (Stimato)
Completamento primario
Completamento dello studio (Stimato)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- STUDY00007273: PEP-HFpEF
- 26CDA1621876 (Altro numero di sovvenzione/finanziamento: American Heart Association)
Informazioni su farmaci e dispositivi, documenti di studio
Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti
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prodotto fabbricato ed esportato dagli Stati Uniti
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