Effects of Exogenous Ketosis on Proteinuria and Renal Function

NCT ID: NCT06867471

Last Updated: 2025-03-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

43 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-09-11

Study Completion Date

2025-12-31

Brief Summary

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A randomized, placebo-controlled, double-blinded crossover study will be conducted. Fourteen patients with polycystic kidney disease (PKD) and 29 patients with proteinuric kidney disease will receive ketone bodies (Ketone-IQ) and placebo in a randomized order. Each treatment period is four weeks. There will be a wash-out period of two weeks in between treatment periods. Effect variables will be measured in the last day of each treatment period.

Detailed Description

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Background: Until recently, the only treatment shown to slow progression of chronic kidney disease (CKD) has been angiotensin converting enzyme (ACE) inhibitors and angiotensin receptor blockers (ARBs).

The use of sodium glucose transporter 2 (SGLT2)-inhibitors, which work by blocking the activity of sodium-glucose-cotransporter 2 channels in the proximal kidney tubule, has completely transformed the treatment of proteinuric kidney disease, with a 28% decrease in the risk for cardiorenal outcomes. Despite these new treatment options, a significant proportion of patients still succumb to kidney failure, require hospitalization for heart failure and die prematurely. Thus, additional preventive measures are essential.

Renewed interest in the physiological role of ketone bodies (KB) has emerged. It has become increasingly clear that ketosis has several beneficial effects including anti-epileptic effects, improved exercise capacity, lipid profile, cardiac function and cognition.

However, only few clinical studies have studied renal effects of exogenous ketosis, and to our knowledge there are no clinical studies examining the effects long term effects of renal ketosis in patients with CKD.

Hypothesis: Ketosis decreases urine albumin to creatinine ratio (ACR) and glomerular filtration rate (GFR) in patients with CKD/PKD.

Methods: A randomized, placebo-controlled, double-blinded crossover study will be conducted. Twenty-nine patients with proteinuric kidney disease (study a) and 14 patients with PKD (study b) will receive ketone bodies (Ketone-IQ) and placebo in a randomized order. Each treatment period is four weeks. There will be a wash-out period of two weeks in between treatment periods. Effect variables will be measured in the last day of each treatment period.

Perspectives: The study has the potential to provide information regarding the therapeutic potential of ketone bodies in patients with CKD/PKD.

Conditions

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Renal Insufficiency, Chronic Polycystic Kidney Diseases Proteinuria Ketosis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
Ketone-IQ and the placebo drink will be transferred to neutral bottles and relabeled. The local pharmacy will be handling the blinding and randomization.

Study Groups

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Ketone diol (Ketone-IQ), then Placebo drink

For four weeks each subject will receive Ketone Diol, R-1,3-butanediol, administered as a drink (Ketone-IQ) twice a day, then crossed over to receive a taste and volume matched placebo drink for four weeks.

Each individual will receive 400mg/kg before bedtime in addition to 200mg/kg with a minimum of 6 hours in between throughout the treatment period.

Group Type OTHER

Ketone Diol, R-1,3-butanediol (Ketone-IQ)

Intervention Type DIETARY_SUPPLEMENT

Effect variables will be measured on the last day of treatment with Ketone-IQ

Placebo drink

Intervention Type OTHER

Effect variables will be measured on the last day of treatment with Placebo

Placebo drink, then Ketone diol (Ketone-IQ)

For four weeks each subject will receive a placebo drink twice a day, then crossed over to receive Ketone Diol, R-1,3-butanediol, administered as a drink (Ketone-IQ) twice a day for four weeks.

Each individual will receive 400mg/kg before bedtime in addition to 200mg/kg with a minimum of 6 hours in between throughout the treatment period.

Group Type OTHER

Ketone Diol, R-1,3-butanediol (Ketone-IQ)

Intervention Type DIETARY_SUPPLEMENT

Effect variables will be measured on the last day of treatment with Ketone-IQ

Placebo drink

Intervention Type OTHER

Effect variables will be measured on the last day of treatment with Placebo

Interventions

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Ketone Diol, R-1,3-butanediol (Ketone-IQ)

Effect variables will be measured on the last day of treatment with Ketone-IQ

Intervention Type DIETARY_SUPPLEMENT

Placebo drink

Effect variables will be measured on the last day of treatment with Placebo

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

Study A (patients with CKD):

* ACR \> 200 mg/g \<3000 mg/g
* eGFR \>30 ml/min/1,73m2
* Treatment with Renin-Angiotension System (RAS) blockers and SGLT-2 inhibitors for a minimum of 4 weeks prior to inclusion
* Safe contraception if women in childbearing age

Study B (patients with PKD):

* Prior diagnose with PKD
* eGFR \>30 ml/min/1,73m2
* Treatment with Renin-Angiotension System (RAS) blockers for a minimum of 4 weeks prior to inclusion
* Safe contraception if women in childbearing age

Exclusion Criteria

* Diabetes Mellitus type 1
* Heart Failure
* Liver Disease
* Kidney transplant
* Malignant diseases (except skin cancer)
* Recent acute myocardial infarction (AMI), apoplexia/transient ischemic attack (TIA) (within 3 months of inclusion)
* Pregnancy or breast feeding
* Alcohol or drug abuse
* Periodic fasting within four weeks of inclusion
* Routinely intake of ketogenic diet within four weeks of inclusion
* Treatment with nitrate
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Gødstrup Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Trine Z Lyksholm, MD

Role: PRINCIPAL_INVESTIGATOR

University Clinic in Nephrology and Hypertenion, Godstrup Region Hospital

Locations

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University Clinic in Nephrology and Hypertension, Gødstrup Region Hospital

Herning, Jutland, Denmark

Site Status RECRUITING

Countries

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Denmark

Central Contacts

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Trine Z Lyksholm, MD

Role: CONTACT

78432534 ext. 0045

Facility Contacts

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Trine Z Lyksholm, MD

Role: primary

+4578432534

Other Identifiers

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TZL-2-2024

Identifier Type: -

Identifier Source: org_study_id

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