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Hereditary Fructose IntoleranceNCT03545581

Fructose Supplementation in Carriers for Hereditary Fructose Intolerance

A study testing Experimental diet Fru rich diet and Experimental low Fru diet in people with Hereditary Fructose Intolerance, run by University of Lausanne at 1 site in Belgium.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study aimed to examine metabolic response to a short-term fructose enriched diet in carriers for hereditary fructose intolerance compared to controls. Effects of fructose coffees will be assessed in 7 healthy volunteers and 7 subjects with heterozygous mutation for ALDOB gene in a randomized, controlled… Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Hereditary Fructose Intolerance
What is being tested?
Experimental diet Fru rich diet and Experimental low Fru diet
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteBelgium
Study dates
1 May 2018to 1 Apr 2019
Phase
Interventional
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 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Case subjects: Heterozygous carriers for ALDOB mutation confirmed by molecular analysis
  • Control subjects: healthy individuals matched for weight and age to subjects

Who cannot join

  • Fasting glucose > 7.0 mmol/L
  • Fasting triglycerides > 4.0 mmol/L
  • Chronic renal insufficiency (eGFR < 50 ml/min)
  • Drugs
  • Women who are pregnant or breast feeding
  • For women: lack of safe contraception
  • Alcool consumption > 30g/d
  • Inability to discern

Trial locations and contacts

1 site in 1 country.

Belgium1 site
  • Guillaume Debray

    Liège

Other trials in Belgium

About this study

Official title: Metabolic Effects of Short-term Dietary Supplementation With Fructose in Carriers for Hereditary Fructose Intolerance

This study aimed to examine metabolic response to a short-term fructose enriched diet in carriers for hereditary fructose intolerance compared to controls. Effects of fructose coffees will be assessed in 7 healthy volunteers and 7 subjects with heterozygous mutation for ALDOB gene in a randomized, controlled, crossover trial.

Read the detailed description

A high fructose intake also increases blood lactate and uric acid concentrations. It has been proposed that uric acid may contribute to insulin resistance by impairing endothelium-dependent vasodilation, promoting pro-inflammatory effects and dyslipidemia by activating de novo lipogenesis.

These consequences of fructose overconsumption may be even more marked in individuals with hereditary alterations in fructose metabolism. Indeed, individuals with hereditary fructose intolerance (HFI), due to biallelic mutations in the gene coding for aldolase B (ALDOB), may develop acute, life-threatening manifestations when exposed to fructose. Heterozygous carriers of ALDOB mutation are quite common in the general population, with a predicted frequency ranging between 1:55 and 1:120. Few studies have examined the effect of fructose ingestion in heterozygotes subject for HFI. Heterozygous carriers are generally considered to have normal fructose metabolism since a ~ 50% level of aldolase B activity is presumed to be sufficient for adequate function. However, heterozygous carriers were reported to have enhanced uric acid responses to large intravenous and/or oral fructose loads.

Investigators hypothesized that heterozygous carriers may also have mild defects of fructose metabolism and/or a larger increase in cardiometabolic risk factors than the normal population after ingestion of moderate amounts of fructose.

Being tested
Experimental diet Fru rich diet, Experimental low Fru diet
Keywords
Fructose, Uric acid, Glucose homeostasis
Medical subject headings
Fructose Intolerance

What participants receive

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

  • Experimental diet Fru rich dietOther

    7 days (day 1 to day 7) with fructose enriched drinks 3x/d. Test meal at day 7 with fructose (0.7 g/body weight) and glucose (0.7 g/body weight)

  • Experimental low Fru dietOther

    7 days (day 1 to day 7) with low-fructose diet (<10g/d). Test meal at day 7 with fructose (0.7 g/body weight) and glucose (0.7 g/body weight)

Study groups in NCT03545581
Study groupRoleWhat they receive
Experimental diet Fru rich dietOtherEnriched fructose diet from day 1 to day 7.
Receives: Other: Experimental diet Fru rich diet
Experimental low Fru dietOtherLow fructose diet from day 1 to day 7.
Receives: Other: Experimental low Fru diet

What is being measured

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

  1. Metabolite concentration

    The primary endpoint is the change of metabolite concentration after ingestion of a test meal (oral glucose and fructose load) under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

Secondary outcomes (20)
  1. Plasma glucose concentration

    Change in glucose concentration after ingestion of a test meal under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

  2. Plasma insulin concentration

    Change in insulin concentration after ingestion of a test meal under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

  3. Plasma fructose concentration

    Change in fructose concentration after ingestion of a test meal under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

  4. Plasma uric acid concentration

    Change in uric acid concentration after ingestion of a test meal under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

  5. Plasma lactate concentration

    Change in lactate concentration after ingestion of a test meal under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

  6. Plasma urea concentration

    Change in urea concentration after ingestion of a test meal under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

  7. Plasma creatinine concentration

    Change in creatinine concentration after ingestion of a test meal under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

  8. Plasma phosphate concentration

    Change in phosphate concentration after ingestion of a test meal under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

  9. Plasma triglycerides concentration

    Change in triglycerides concentration after ingestion of a test meal under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

  10. Plasma metabolome concentration

    Change in metabolome concentration after ingestion of a test meal under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

  11. Plasma ammonia concentration

    Change in ammonia concentration after ingestion of a test meal under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

  12. Plasma amino acid concentration

    Change in amino acid concentration after ingestion of a test meal under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

  13. Plasma alanine transaminase (ALAT) concentration

    Change in alanine transminase (ALAT) concentration after ingestion of a test meal under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

  14. Plasma aspartate transaminase (ASAT) concentration

    Change in aspartate transaminase (ASAT) concentration after ingestion of a test meal under 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

    Measured: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal

  15. Urine metabolome concentration

    Change in urine metabolome profile after low fructose diet and an enriched fructose diet according to a crossover design

    Measured: Time Frame: 24 hour urine collection before ingestion of a test meal and after 7 days of 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

  16. Urine creatinine concentration

    Change in urine creatinine profile after low fructose diet and an enriched fructose diet according to a crossover design

    Measured: Time Frame: 24 hour urine collection before ingestion of a test meal and after 7 days of 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

  17. Urine urea concentration

    Change in urine urea profile after low fructose diet and an enriched fructose diet according to a crossover design

    Measured: Time Frame: 24 hour urine collection before ingestion of a test meal and after 7 days of 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

  18. Urine uric acid concentration

    Change in urine uric acid profile after low fructose diet and an enriched fructose diet according to a crossover design

    Measured: Time Frame: 24 hour urine collection before ingestion of a test meal and after 7 days of 2 conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

  19. Body weight

    Change of body weight after low fructose diet and an enriched fructose diet according to a crossover design

    Measured: Time Frame: at baseline before study intervention and at the end of each conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

  20. Blood pressure

    Change of systolic and diastolic pressure after low fructose diet and an enriched fructose diet according to a crossover design

    Measured: Time Frame: at baseline before study intervention and at the end of each conditions (enriched fructose diet vs poor fructose diet) according to a crossover design

Timeline

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

  1. First posted4 Jun 2018
  2. Study start1 May 2018
  3. Primary completion1 Dec 2018
  4. Study completion1 Apr 2019

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 N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03545581
Sponsor's protocol ID
2016-00289
Other IDs
2016
Status last verified
Apr 2019
First submitted
7 May 2018
Last updated
22 Apr 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Debray FG, Seyssel K, Fadeur M, Tappy L, Paquot N, Tran C. Effect of a high fructose diet on metabolic parameters in carriers for hereditary fructose intolerance. Clin Nutr. 2021 Jun;40(6):4246-4254. doi: 10.1016/j.clnu.2021.01.026. Epub 2021 Jan 27.

    PubMed 33551217

Questions about this trial

What is this clinical trial studying?

A study testing Experimental diet Fru rich diet and Experimental low Fru diet in people with Hereditary Fructose Intolerance, run by University of Lausanne at 1 site in Belgium.

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 2 inclusion and 8 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: finished, as of the sponsor's last update on 22 Apr 2019. 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 Belgium. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Metabolite concentration (time frame: Time Frame: -30 min before ingestion of a test meal to 120 min after ingestion of a test meal). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03545581, which also lists 1 linked publication.

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 22 Apr 2019.

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