The Effect of Obesity and Weight Loss in Heart Failure With Reduced Ejection Fraction.
SLEnDR
The Effects of Obesity and Weight Loss in Heart Failure: Imaging the Obesity Paradox Using Magnetic Resonance Imaging and Spectroscopy - Heart Failure With Reduced Ejection Fraction Substudy
2 other identifiers
interventional
110
2 countries
2
Brief Summary
This study looks at the effects of weight loss in people who have heart failure with reduced ejection fraction (HFpEF) and are overweight or obese. The main questions it aims to answer are whether weight loss in this group of people improves:
- The heart's shape and how well it pumps blood
- The person's quality of life and how much they can exercise Participants will attend 2 study visits, separated by 3-6 months. The intervention period takes place in between the 2 study visits. Each study visit may involve measurements including: Symptom and quality of life questionnaires Body measurements such as height and weight Blood tests Ultrasound scans of the heart (echocardiogram) Magnetic Resonance Imaging (MRI) scans of the heart 6 minute walk test Participants are randomly allocated (in other words, by lottery) to either 'diet' or 'control' groups. The control group will continue standard care. The diet group will be enrolled in a weight loss program supervised by the study team. Participants in the diet group will replace their usual meals with meal replacement products specifically designed to deliver a low calorie diet for weight loss. The products will consist of formula soups, shakes and porridges. This diet would last 8 weeks, followed by a guided period of food reintroduction and maintenance.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable heart-failure
Started May 2023
Typical duration for not_applicable heart-failure
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 24, 2023
CompletedFirst Submitted
Initial submission to the registry
July 3, 2023
CompletedFirst Posted
Study publicly available on registry
July 12, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2026
February 25, 2025
February 1, 2025
3.6 years
July 3, 2023
February 21, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Left ventricular ejection fraction
On cardiac magnetic resonance imaging (CMR)
Change from baseline at 3-6 months
Secondary Outcomes (4)
Body weight
Change from baseline at 3-6 months
Six minute walk distance
Change from baseline at 3-6 months
Kansas City Cardiomyopathy Questionnaire (KCCQ)
Change from baseline at 3-6 months
N-terminal pro brain natriuretic peptide (NTproBNP)
Change from baseline at 3-6 months
Other Outcomes (2)
Left ventricular mass
Change from baseline at 3-6 months
Left atrial volume
Change from baseline at 3-6 months
Study Arms (2)
Diet intervention
EXPERIMENTALDiet intervention (in addition to standard clinical care)
Standard clinical care
NO INTERVENTIONStandard clinical care only
Interventions
The diet intervention delivers a weight loss program. The main component is a total diet replacement low energy diet. The intervention includes a gradual food reintroduction phase and maintenance strategies.
Eligibility Criteria
You may qualify if:
- Heart failure determined by left ventricular ejection fraction 20-45%
- Body mass index \> 27.5kg/m\^2
You may not qualify if:
- Contraindications to magnetic resonance imaging
- NYHA class IV
- Pregnancy, planned pregnancy or lactating
- Significant valvular, ischemic, infiltrative or other potentially confounding cardiac disease
- Any other conditions which may potentially compromise the safety or scientific validity of the study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Oxfordlead
- British Heart Foundationcollaborator
Study Sites (2)
Jersey General Hospital
Jersey, Jersey, JE1 3QS, Jersey
Jenny Rayner
Oxford, OX3 9DU, United Kingdom
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Oliver J Rider, DPhil
University of Oxford
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 3, 2023
First Posted
July 12, 2023
Study Start
May 24, 2023
Primary Completion (Estimated)
December 31, 2026
Study Completion (Estimated)
December 31, 2026
Last Updated
February 25, 2025
Record last verified: 2025-02