PMID- 32073676 OWN - NLM STAT- MEDLINE DCOM- 20210423 LR - 20210423 IS - 1932-8737 (Electronic) IS - 0160-9289 (Print) IS - 0160-9289 (Linking) VI - 43 IP - 5 DP - 2020 May TI - Beta-blockers withdrawal in patients with heart failure with preserved ejection fraction and chronotropic incompetence: Effect on functional capacity rationale and study design of a prospective, randomized, controlled trial (The Preserve-HR trial). PG - 423-429 LID - 10.1002/clc.23345 [doi] AB - BACKGROUND: The pathophysiology of heart failure with preserved ejection fraction (HFpEF) is complex and multifactorial. Chronotropic incompetence (ChI) has emerged as a crucial pathophysiological mechanism. Beta-blockers, drugs with negative chronotropic effects, are commonly used in HFpEF, although current evidence does not support its routine use in these patients. HYPOTHESIS: We postulate beta-blockers may have deleterious effects in HFpEF and ChI. This work aims to evaluate the short-term effect of beta-blockers withdrawal on functional capacity assessed by the maximal oxygen uptake (peakVO2) in patients with HFpEF and ChI. METHODS: This is a prospective, crossover, randomized (1:1) and multicenter study. After randomization, the clinical and cardiac rhythm will be continuously registered for 30 days. PeakVO2 is assessed by cardiopulmonary exercise testing (CPET) at 15 and 30 days in both groups. Secondary endpoints include quality of life, cognitive, and safety assessment. Patients with stable HFpEF, functional class New York Heart Association (NYHA) II-III, chronic treatment with beta-blockers, and ChI will be enrolled. A sample size estimation [alfa: 0.05, power: 90%, a 20% loss rate, and delta change of mean peakVO2: +1.2 mL/kg/min (SD +/- 2.0)] of 52 patients is necessary to test our hypothesis. RESULTS: Patients started enrolling in October 2018. As January 14th, 2020, 28 patients have been enrolled. It is projected to enroll the last patient at the end of July 2020. CONCLUSIONS: Optimizing therapy that improves functional capacity remains an unmeet priority in HFpEF. Deprescribing beta-blockers in patients with HFpEF and ChI seems a plausible intervention to improve functional capacity. This trial is an attempt towards precision medicine in this complex syndrome. TRIAL REGISTRATION: ClinicalTrials.gov: NCT03871803. CI - (c) 2020 The Authors. Clinical Cardiology published by Wiley Periodicals, Inc. FAU - Palau, Patricia AU - Palau P AD - FISABIO. Universitat Jaume I, Castellon, Spain. FAU - Seller, Julia AU - Seller J AD - Cardiology Department, Hospital de Denia, Alicante, Spain. FAU - Dominguez, Eloy AU - Dominguez E AUID- ORCID: 0000-0001-7583-8818 AD - FISABIO. Universitat Jaume I, Castellon, Spain. FAU - Gomez, Ines AU - Gomez I AD - Cardiology Department, Hospital Clinico Universitario de Santiago de Compostela, Santiago de Compostela, A Coruna, Spain. AD - CIBERCV, Madrid, Spain. FAU - Ramon, Jose Maria AU - Ramon JM AD - CIBERCV, Madrid, Spain. AD - Cardiology Department, Hospital Clinico Universitario, INCLIVA. Universitat de Valencia, Valencia, Spain. FAU - Sastre, Clara AU - Sastre C AD - CIBERCV, Madrid, Spain. AD - Cardiology Department, Hospital Clinico Universitario, INCLIVA. Universitat de Valencia, Valencia, Spain. FAU - de la Espriella, Rafael AU - de la Espriella R AD - CIBERCV, Madrid, Spain. FAU - Santas, Enrique AU - Santas E AD - CIBERCV, Madrid, Spain. AD - Cardiology Department, Hospital Clinico Universitario, INCLIVA. Universitat de Valencia, Valencia, Spain. FAU - Minana, Gema AU - Minana G AUID- ORCID: 0000-0001-8777-2588 AD - CIBERCV, Madrid, Spain. AD - Cardiology Department, Hospital Clinico Universitario, INCLIVA. Universitat de Valencia, Valencia, Spain. FAU - Chorro, Francisco J AU - Chorro FJ AD - CIBERCV, Madrid, Spain. AD - Cardiology Department, Hospital Clinico Universitario, INCLIVA. Universitat de Valencia, Valencia, Spain. FAU - Gonzalez-Juanatey, Jose Ramon AU - Gonzalez-Juanatey JR AD - Cardiology Department, Hospital Clinico Universitario de Santiago de Compostela, Santiago de Compostela, A Coruna, Spain. AD - CIBERCV, Madrid, Spain. FAU - Nunez, Julio AU - Nunez J AUID- ORCID: 0000-0003-1672-7119 AD - CIBERCV, Madrid, Spain. AD - Cardiology Department, Hospital Clinico Universitario, INCLIVA. Universitat de Valencia, Valencia, Spain. LA - eng SI - ClinicalTrials.gov/NCT03871803 PT - Clinical Trial Protocol PT - Journal Article DEP - 20200219 PL - United States TA - Clin Cardiol JT - Clinical cardiology JID - 7903272 RN - 0 (Adrenergic beta-Antagonists) RN - 12794-10-4 (Benzodiazepines) SB - IM MH - Adrenergic beta-Antagonists/*therapeutic use MH - Benzodiazepines/*therapeutic use MH - Dose-Response Relationship, Drug MH - Female MH - Heart Failure/*drug therapy/physiopathology MH - Humans MH - Male MH - Multicenter Studies as Topic MH - Prospective Studies MH - Randomized Controlled Trials as Topic MH - Research Design MH - Stroke Volume/drug effects MH - Ventricular Function, Left/*drug effects PMC - PMC7244302 OTO - NOTNLM OT - chronotropic incompetence OT - exercise capacity OT - heart failure with preserved ejection fraction OT - quality of life COIS- The authors declare no potential conflict of interests. EDAT- 2020/02/20 06:00 MHDA- 2021/04/24 06:00 PMCR- 2020/02/19 CRDT- 2020/02/20 06:00 PHST- 2019/12/14 00:00 [received] PHST- 2020/02/03 00:00 [revised] PHST- 2020/02/05 00:00 [accepted] PHST- 2020/02/20 06:00 [pubmed] PHST- 2021/04/24 06:00 [medline] PHST- 2020/02/20 06:00 [entrez] PHST- 2020/02/19 00:00 [pmc-release] AID - CLC23345 [pii] AID - 10.1002/clc.23345 [doi] PST - ppublish SO - Clin Cardiol. 2020 May;43(5):423-429. doi: 10.1002/clc.23345. Epub 2020 Feb 19.