Skip to main content
UK clinical trials - updated daily from ClinicalTrials.gov
TrialConnect
← Back to Search
Study finishedPhase2/Phase3

A Randomised, Controlled Trial of a Low-energy Diet for Improving Functional Status in Heart Failure With PRESERVED Ejection Fraction Preserved Ejection Fraction

Sponsor: University of Leicester

NCT ID: NCT05887271

View on ClinicalTrials.gov ↗

At a glance

What the study gets you
Access to the study treatment being tested
Type of study
Interventional (receives a drug or procedure)
Time in hospital
In-person visits at study sites — visit count not specified by the sponsor
Drug or intervention
Low calorie meal replacement plan (drug), Cardiovascular magnetic resonance (CMR) imaging and magnetic resonance spectroscopy (diagnostic test), Transthoracic echocardiography (diagnostic test), Blood test (diagnostic test)
How long the study runs
Study runs about 30 months (dates as stated)
About the drug or intervention
Low calorie meal replacement plan — drug: Meal replacement diet containing \~850 kcal/day (40% protein, 50% carbohydrate, 10% fat) supplied by Counterweight® (www.counterweight.org).The meal replacement plan will comprise of 3-4 meal packs/day (to equate to 850 kcal) with sweet and savoury options, and an allowance of 100ml semi-skimmed milk or a non-dairy alternative. · Cardiovascular magnetic resonance (CMR) imaging and magnetic resonance spectroscopy — diagnostic test: CMR scanning performed on a 3T MRI scanner. · Transthoracic echocardiography — diagnostic test: Comprehensive transthoracic echocardiography, including: tissue Doppler indices of diastolic filling, exclusion of valvular abnormalities, assessment of LV size and function · Blood test — diagnostic test: Collection of blood samples from each participant to characterise the participant's health status and fibroinflammatory markers. · Electrocardiogram — diagnostic test: An ECG will be obtained to assess for baseline rhythm. · Accelerometery — diagnostic test: Accelerometer (GeneActiv) measured daily activity levels continuously for 7 consecutive days. · 6 minute walk test (6MWT) — diagnostic test: Supervised 6MWT will be performed with symptom assessment using dyspnoea scale (Borg's). · Skeletal muscle strength using handgrip strength — diagnostic test: Skeletal muscle strength will be measured using hand grip strength · Assessment of quality of life and heart failure symptoms — other: Quality of life and HF symptoms will be assessed using the Kansas City Cardiomyopathy Questionnaire (KCCQ) questionnaire, which is used as a standardised measure of self-reported health status, and HF symptoms and is considered to have a good discriminatory power and validity · Assessment of sarcopenia — other: Participants will be assessed for presence of sarcopenia using the Strength, Assistance with walking, Rise from a chair, Climb stairs and Falls (SARC-F) questionnaire. · Assessment of frailty — other: Frailty will be assessed using the Edmonton Frail Scale (EFS). · Qualitative interview — other: Participants in the MRP and control groups will be invited to attend a focused semi-structured, 1-2-1 interview aimed to elicit barriers and enablers to the MRP and describe their perspective on the relationship between healthy eating and health interview during the 12-week visit.
Patient visit burden
Not specified by the sponsor
Type of study
Testing a treatment
Ages
18 Years and over
Who
All
Number of participants
66
Started
2023-12-05
Last checked
2026-06

Plain English Summary

What is this study?

  • • Testing a new treatment for heart failure with preserved ejection fraction
  • • Phase2/Phase3 - 66 participants
  • • Heart failure with preserved ejection fraction (HFpEF) is a common and serious complication of obesity and type 2 diabetes (T2D)

Who can take part?

  • • Ages 18 Years and over
  • • Diagnosed with heart failure with preserved ejection fraction

Where?

  • • Leicester - University of Leicester, Glenfield Hospital, Groby Road
  • • Manchester - University of Manchester, Wythenshawe Hospital, Southmoor Road
  • • Oxford - University of Oxford, John Radcliffe Hospital, Headley Way

This is a simplified summary. Always discuss with your doctor before making any decisions.

About This Trial

Heart failure with preserved ejection fraction (HFpEF) is a common and serious complication of obesity and type 2 diabetes (T2D). HFpEF occurs when the heart muscle unable to relax efficiently to pump the blood around the body. This leads to fluid build-up, breathlessness and inability to tolerate physical exertion. People who develop HFpEF do less well because treatment options are limited. Pilot data in patients with obesity and diabetes and a small number of patients with HFpEF have shown improvements in exercise capacity and reversal of changes in the heart and blood vessels. This study will assess if this is achievable in a multi-ethnic cohort of patients with established HFpEF. A total of 63 adults will be invited and allocate by chance into two groups: 1) 12-weeks of a low calorie diet or 2) Standard care and health advice on how to lose weight followed by the option to have the low calorie diet after 12-weeks. The study will determine if weight loss over 12 weeks can improve heart function, symptoms and ability to exercise. Additionally, participants' views on changing their diet and how this has impacted their symptoms will be sought during the study in an optional interview. This will help guide treatments planning in the future to get maximum benefits, and to individualize support to patients from different cultural backgrounds.

More detail

Heart failure (HF) with preserved ejection fraction (HFpEF) is a heterogenous syndrome, typified by severe exercise intolerance and with limited treatment options. Weight loss achieved through a low energy meal-replacement plan (MRP) has been shown to lead to reversal of cardiovascular remodelling in ethnically diverse asymptomatic adults with pre-HFpEF and HFpEF. This trial will translate this experience with the pragmatic low energy MRP into a symptomatic, multi-ethnic cohort of obese HFpEF, across four sites (Leicester, Manchester, Leeds and Oxford) to assess its efficacy in improving exercise intolerance, symptoms, quality of life, cardiovascular remodelling, and skeletal myopathy.

Heart Failure With Preserved Ejection FractionHeart Failure, DiastolicDiabetes Mellitus, Type 2Diabetes Mellitus Type 2 in ObeseObesity Adult Onset

How this trial compares with your answers

Answer 2 more questions to improve match

What we know so far

Condition· Matched your search
Age· Tell us your age for better matching
Gender· Tell us your sex for better matching

Still need:

  • • Tell us your age for better matching
  • • Tell us your sex for better matching

Preliminary match based on your answers. Full eligibility requires on-site assessment including medical history, physical exam, and lab tests. This does not guarantee enrolment.

Eligibility at a Glance

Key info

  • Age: 18 Years and over
  • Who can join: All genders

Biomarkers mentioned

eGFR

What the study is looking for

  • ✓Clinically stable for ≥ 3 months (no admissions to hospital)
  • ✓Obesity (BMI ≥30kg/m2 if white European or ≥27kg/m2 if Asian, Middle Eastern or Black ethnicity)
  • ✓Age ≥18

Who cannot take part

  • ✗Inability to walk/undertake 6-minute walk test
  • ✗Inability to follow a low-energy MRP
  • ✗HFpEF due to infiltrative cardiomyopathy (heart amyloidosis or sarcoidosis), genetic hypertrophic cardiomyopathy,...
  • ✗Recovered EF (previous EF \< 40%) unless reduced EF was in context of tachycardia induced cardiomyopathy (eg...
  • ✗Known heritable, idiopathic or drug-induced lung arterial hypertension
See the full criteria
Inclusion Criteria: 1. Established clinical diagnosis of heart failure with preserved ejection fraction HFpEF (EF\>45%) made by a cardiologist or a primary care physician with heart failure expertise, or a heart failure nurse 2. Clinically stable for ≥ 3 months (no admissions to hospital) 3. Obesity (BMI ≥30kg/m2 if white European or ≥27kg/m2 if Asian, Middle Eastern or Black ethnicity) 4. Age ≥18 Exclusion Criteria: 1. Inability to walk/undertake 6-minute walk test 2. Inability to follow a low-energy MRP 3. HFpEF due to infiltrative cardiomyopathy (cardiac amyloidosis or sarcoidosis), genetic hypertrophic cardiomyopathy, restrictive cardiomyopathy/pericardial disease or congenital heart disease. 4. Recovered EF (previous EF \< 40%) unless reduced EF was in context of tachycardia induced cardiomyopathy (eg AF/Aflutter). 5. Known heritable, idiopathic or drug-induced pulmonary arterial hypertension 6. Severe chronic obstructive pulmonary disease (FEV1\< 1.0L) 7. Severe primary valvular heart disease 8. Anaemia (Hb\<100g/L) 9. Severe renal disease (eGFR \< 30 ml/min/1.73 m2) 10. Weight loss \> 5kg in preceding 3 months. 11. Symptomatic gallstones (including biliary colic) or cholecystitis within last 3 months 12. Active substance abuse (drugs or alcohol) 13. History of bariatric surgery in the last 3 years 14. Active illness likely to cause change in weight 15. Women who are pregnant or are considering pregnancy 16. People currently participating in another clinical research trial that is likely to affect diet or weight change. 17. History of a severe mental illness including an eating disorder 17\. Individuals with a diagnosis of Type 1 diabetes mellitus.

Where Is This Study? (3 UK sites)

University of Leicester, Glenfield Hospital, Groby Road

Leicester LE3 9QP, United Kingdom

Hospital R&D contact (matched)

Carolyn Maloney

uhl-tr.researchandinnovationadminmailbox@nhs.net0116 258 8351

University of Manchester, Wythenshawe Hospital, Southmoor Road

Manchester M23 9LT, United Kingdom

Hospital R&D contact (matched)

Elizabeth Mainwaring

R&D.applications@mft.nhs.uk0161 276 3340

University of Oxford, John Radcliffe Hospital, Headley Way

Oxford OX3 9DU, United Kingdom

Hospital R&D contact (matched)

Shahista Hussain

ouhtma@ouh.nhs.uk---
Data sourced from ClinicalTrials.gov · Last verified: 2026-06