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Heart FailurePhase 2KETO-KINETICS1NCT04443426

Modulation of Circulating Levels of the Ketone Body 3-hydroxybutyrate in Patients With Chronic Heart Failure: Cardiovascular Effects

A Phase 2 study testing Oral 3-hydroxybutyrate salts and Ketone Monoester in people with Heart Failure and Ketosis, run by University of Aarhus at 1 site in Denmark.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The ketone body 3-hydroxybutyrate (3-OHB) is a naturally occurring energy substrate, and is associated with increased life span and improved health. We have previously shown that intravenous 3-OHB treatment increases myocardial blood flow > 70% in healthy humans and data from our group show that 3-OHB increases… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Heart Failure, Ketosis, Ketonemia
What is being tested?
Oral 3-hydroxybutyrate salts and Ketone Monoester
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
8 participants
Where
1 siteDenmark
Study dates
25 Apr 2019to 1 Nov 2022
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Chronic Heart Failure;
  • NYHA class II-III
  • Left Ventricular Ejection Fraction <40%

Who cannot join

  • Diabetes or HbA1c > 48 mmol/mol
  • Significant cardiac valve disease,
  • Severe stable angina pectoris
  • Severe comorbidity as judged by investigator,
  • Inability to give informed consent.

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Aarhus University Hospital

    Aarhus, 8200

Other trials in Denmark

About this study

The ketone body 3-hydroxybutyrate (3-OHB) is a naturally occurring energy substrate, and is associated with increased life span and improved health. We have previously shown that intravenous 3-OHB treatment increases myocardial blood flow > 70% in healthy humans and data from our group show that 3-OHB increases cardiac output by 40 % in patients with heart failure.

In this study the investigators aim to investigate:

  1. If this effect is reproducible with a commercially available oral ketone supplements
  2. The safety of commercially available ketone supplements in heart failure patients
Read the detailed description

Heart Failure (HF) is a major public health issue because the disease affects 1-2% of the Western population and the lifetime risk of HF is 20%. HF is responsible for 1-2% of all healthcare expenditures. Despite major improvements in the management and care of patients with HF, the 1-year mortality in patients with HF is 13 % and >50% of HF-patients is admitted during a 2.5 year period. Furthermore patients with HF have markedly decreased physical capacity and quality of life. Thus, there is a need for new treatment modalities in this group of patients.

Ketone bodies are produced in the liver and are of vital importance in the human body for energy generation in the heart and brain during fasting, exercise and severe illness. Ketosis can be safely obtained using dietary supplements and can increase exercise capacity in athletes. The most important ketone bodies are 3-hydroxybutyrate (3-OHB) and acetoacetate. Recently, it was demonstrated that patients with severe HF have increased myocardial utilization of the ketone body 3-hydroxybutyrate.

We have shown, using positron emission tomography, that ketone body infusion reduces myocardial glucose uptake and increases myocardial blood flow in healthy subjects. Data from another study conducted by our group show a 40% increase in cardiac output during infusion of 3-OHB.

Presently there are no data on the clinical cardiovascular and metabolic effects of long-term oral ketone-supplementation in patients with chronic HF.

In this study the investigators will whether ketosis obtained by oral ketone supplements affects hemodynamics and contractile function.

Being tested
Oral 3-hydroxybutyrate salts, Carbohydrate Placebo, Ketone Monoester
Keywords
Metabolism
Medical subject headings
Heart Failure, Ketosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Oral 3-hydroxybutyrate saltsDietary supplement

    Comercially available 3-hydroxybutyrate salts with 36 grams of 3-OHB salts three times daily.

  • Carbohydrate PlaceboDietary supplement

    Comercially available carbohydrate sports drink. The placebo dose is isocaloric to the 3-hydroxy butyrate dose.

  • Ketone MonoesterDietary supplement

    Commercially available ketone monoester in a dosage isocaloric to 3-OHB salts.

Study groups in NCT04443426
Study groupRoleWhat they receive
Single dose oral 3-hydroxybutyrate monoesterExperimentalCross-over study in 8 patients receiving single-dose oral 3-hydroxybutyrate monoester, 3-OHB salt and placebo.
Receives: Dietary Supplement: Ketone Monoester
Single dose oral 3-hydroxybutyrate SaltExperimentalNot described
Receives: Dietary Supplement: Oral 3-hydroxybutyrate salts
Single dose oral placeboPlacebo comparatormaltodextrin-based, isocaloric to ketone dosis.
Receives: Dietary Supplement: Carbohydrate Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cardiac Output (L/min)

    Right Heart Catherization

    Measured: 5 hours - Area under the curve

Secondary outcomes (2)
  1. Left Ventricle Ejection Fraction (%)

    Echocardiography

    Measured: 5 Hours - Area under the curve

  2. Left Ventricular filling pressure (mmHg)

    Right Heart Catherization

    Measured: 5 hours - Area under the curve

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Jun 2020
  2. Study start25 Apr 2019
  3. Primary completion1 Nov 2022 (estimated)
  4. Study completion1 Nov 2022 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
8 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04443426
Sponsor's protocol ID
KETO- CHF 1-10-72-362-18
Acronym
KETO-KINETICS1
Status last verified
Aug 2022
First submitted
20 May 2019
Last updated
18 Aug 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Oral 3-hydroxybutyrate salts and Ketone Monoester in people with Heart Failure and Ketosis, run by University of Aarhus at 1 site in Denmark.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 18 Aug 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Cardiac Output (L/min) (time frame: 5 hours - Area under the curve). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Aug 2022.

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