Dataset Information

Exercise training response according to baseline ferrokinetics in heart failure with preserved ejection fraction: A substudy of the TRAINING-HF trial.

ABSTRACT:

Background

Iron deficiency (ID) is associated with impaired functional capacity in patients with heart failure (HF), even in those with preserved ejection fraction (HFpEF). This study aimed to evaluate the effect of baseline ferrokinetics on peak oxygen consumption (peakVO₂) improvement after a 12-week physical therapy programme in patients with stable HFpEF.

Methods

This study is a post-hoc sub-analysis of a randomized clinical trial in which 59 stable patients with HFpEF were randomized to receive a 12-week programme of inspiratory muscle training (IMT), functional electrical stimulation (FES), IMT + FES or usual care (UC) to evaluate change in peakVO₂ (NCT02638961). Serum ferritin and transferrin saturation (TSAT) determinations were assessed at baseline. ID was defined as ferritin <100 ng/mL and/or TSAT <20% if ferritin was within 100-299 ng/mL. We used a linear mixed regression model to analyse between-treatment changes in peakVO₂ across ferrokinetics status at 12 and 24 weeks.

Results

The mean age was 74 ± 9 years, and 36 (61%) had ID. The mean of peakVO₂ was 9.9 ± 2.5 mL/kg/min. The median of ferritin and transferrin saturation (TSAT) was 91 (50-181) ng/mL and 23% (16-30), respectively. A total of 52 patients completed the trial (13 patients per arm). Compared with those patients on UC, patients allocated to any of the active arms showed less improvement in peak VO₂ when they showed ID (P-value for interaction <0.001), lower values of ferritin (P-value for interaction <0.001), or TSAT (P-value for interaction <0.001).

Conclusions

Ferrokinetics status plays an essential role in modifying the aerobic capacity response to physical therapies in patients with HFpEF. Further studies are required to confirm these findings.

SUBMITTER: Palau P

PROVIDER: S-EPMC10995251 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature

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Publications

Exercise training response according to baseline ferrokinetics in heart failure with preserved ejection fraction: A substudy of the TRAINING-HF trial.

Palau Patricia P López Laura L Domínguez Eloy E de La Espriella Rafael R Campuzano Raquel R Castro Almudena A Miñana Gema G Fernández-Cisnal Agustin A Sanchis Juan J Núñez Julio J

Journal of cachexia, sarcopenia and muscle 20240115 2

<h4>Background</h4>Iron deficiency (ID) is associated with impaired functional capacity in patients with heart failure (HF), even in those with preserved ejection fraction (HFpEF). This study aimed to evaluate the effect of baseline ferrokinetics on peak oxygen consumption (peakVO<sub>2</sub>) improvement after a 12-week physical therapy programme in patients with stable HFpEF.<h4>Methods</h4>This study is a post-hoc sub-analysis of a randomized clinical trial in which 59 stable patients with HF ...[more]

PMID: 38225218

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Project description:BackgroundPrognostic markers and biological pathways linked to detrimental clinical outcomes in heart failure with preserved ejection fraction (HFpEF) remain incompletely defined.Methods and resultsWe measured serum levels of 4123 unique proteins in 1117 patients with HFpEF enrolled in the PARAGON-HF (Efficacy and Safety of LCZ696 Compared to Valsartan, on Morbidity and Mortality in Heart Failure Patients With Preserved Ejection Fraction) trial using a modified aptamer proteomic assay. Baseline circulating protein concentrations significantly associated with the primary end point and the timing and occurrence of total heart failure hospitalization and cardiovascular death were identified by recurrent events regression, accounting for multiple testing, adjusted for age, sex, treatment, and anticoagulant use, and compared with published analyses in 2515 patients with heart failure with reduced ejection fraction from the PARADIGM-HF (Prospective Comparison of ARNI With ACEI to Determine Impact on Global Mortality and Morbidity in Heart Failure) and ATMOSPHERE (Efficacy and Safety of Aliskiren and Aliskiren/Enalapril Combination on Morbidity-Mortality in Patients With Chronic Heart Failure) clinical trials. We identified 288 proteins that were robustly associated with the risk of heart failure hospitalization and cardiovascular death in patients with HFpEF. The baseline proteins most strongly related to outcomes included B2M (β-2 microglobulin), TIMP1 (tissue inhibitor of matrix metalloproteinase 1), SERPINA4 (serpin family A member 4), and SVEP1 (sushi, von Willebrand factor type A, EGF, and pentraxin domain containing 1). Overall, the protein-outcome associations in patients with HFpEF did not markedly differ as compared with patients with heart failure with reduced ejection fraction. A proteomic risk score derived in patients with HFpEF was not superior to a previous proteomic score derived in heart failure with reduced ejection fraction nor to clinical risk factors, NT-proBNP (N-terminal pro-B-type natriuretic peptide), or high-sensitivity cardiac troponin.ConclusionsNumerous serum proteins linked to metabolic, coagulation, and extracellular matrix regulatory pathways were associated with worse HFpEF prognosis in the PARAGON-HF proteomic substudy. Our results demonstrate substantial similarities among serum proteomic risk markers for heart failure hospitalization and cardiovascular death when comparing clinical trial participants with heart failure across the ejection fraction spectrum.RegistrationURL: https://www.clinicaltrials.gov; Unique Identifiers: NCT01920711, NCT01035255, NCT00853658.

Project description:AimsIn the heart failure (HF) with preserved ejection fraction (HFpEF) PARAGON-HF trial, sacubitril/valsartan vs. valsartan improved mortality/morbidity in patients with left ventricular ejection fraction (LVEF) below median (57%). We assessed eligibility for sacubitril/valsartan based on four scenarios.Methods and resultsEligibility was assessed in the Karolinska-Rennes study (acute HFpEF, LVEF ≥ 45%, and N-terminal pro-B-type natriuretic peptide ≥300 pg/mL subsequently assessed as outpatients including echocardiography) in (i) a trial scenario (all trial criteria); (ii) a pragmatic scenario (selected trial criteria); (iii) LVEF below lower limit of normal range (<54% in women and <52% in men); and (iv) LVEF below mean of normal range (<64% in women and <62% in men). Among 425 patients [age 78 (72-83) years, 57% women, 28% LVEF ≤ 57% (median in PARAGON-HF), the trial scenario, identified 34% as eligible. Left atrial enlargement and/or left ventricular hypertrophy were present in 99%. Inclusion criteria not met were diuretic treatment and New York Heart Association class. Important exclusion criteria were estimated glomerular filtration rate <30 mL/min/1.73 m2 , haemoglobin <10 g/day, and cancer. In the pragmatic scenario, 63% were eligible. In LVEF below lower limit of normal range, 5.4% were eligible, and in LVEF below mean of normal range, 41% were eligible. In patients with LVEF ≤ 57%, eligibility was 42%, 69%, 21%, and 91% according to the trial scenario, pragmatic scenario, LVEF below lower limit of normal range, and LVEF below mean of normal range, respectively.ConclusionsIn real-world HFpEF (LVEF ≥ 45%) with N-terminal pro-B-type natriuretic peptide and cardiac structure/function assessed, eligibility for sacubitril/valsartan was according to PARAGON-HF complete criteria 34%, pragmatic criteria 63%, LVEF below lower limit of normal range 5.4%, and LVEF below mean of normal range 41%. Cardiac structural impairment was almost ubiquitous. Ineligibility was more due to exclusion criteria than failing to meet inclusion criteria.

Project description:BackgroundHeart failure with preserved ejection fraction is associated with significant functional limitations, yet treatments for improving exercise performance have been elusive. We sought to explore the association between prespecified patient characteristics and changes in 6-minute walk distance that constitute a clinically significant response to dapagliflozin.MethodsWe performed a responder analysis to understand patient characteristics associated with clinically meaningful improvement in 6-minute walk test (6MWT) distance ≥15 m among patients randomized to 12 weeks of dapagliflozin versus placebo in the double-blind PRESERVED-HF trial (Effects of Dapagliflozin on Biomarkers, Symptoms and Functional Status in Patients With Preserved Ejection Fraction Heart Failure).ResultsA total of 289 randomized patients had 6MWT distance completed at baseline and 12 weeks. Patients randomized to dapagliflozin improved walking distance by ≥15 m more frequently than those on placebo (n=64, 44% versus n=48, 34%). After adjusting for baseline covariates, patients randomized to dapagliflozin were more likely to experience a clinically meaningful improvement in 6MWT distance compared with those that received placebo (adjusted odds ratio, 1.66 [95% CI, 1.00-2.75]; P=0.05). Dapagliflozin-treated patients were also less likely to have a ≥15 m reduction in 6MWT distance compared with placebo-treated patients (adjusted odds ratio, 0.56 [95% CI, 0.33-0.94]; P=0.03). These results were consistent across all prespecified subgroups (all P values for interaction were not significant).ConclusionsCompared with those on placebo, patients with heart failure with preserved ejection fraction randomized to dapagliflozin were more likely to experience a clinically meaningful improvement and less likely to experience a deterioration in physical function over 12 weeks as measured by 6MWT distance. Beneficial response to dapagliflozin was consistent across prespecified subgroups.RegistrationURL: https://www.clinicaltrials.gov; Unique identifier: NCT03030235.

Dataset Information

Exercise training response according to baseline ferrokinetics in heart failure with preserved ejection fraction: A substudy of the TRAINING-HF trial.

Background

Methods

Results

Conclusions

Publications

Exercise training response according to baseline ferrokinetics in heart failure with preserved ejection fraction: A substudy of the TRAINING-HF trial.

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