AzTrials
AzTrials

Insulin ResistanceNCT05017675

Effect of Dietary SFA and Fructose on Hepatic Insulin Sensitivity

A study testing High fructose diet and High saturated fat diet in people with Insulin Resistance, run by Maastricht University Medical Center at 1 site in Netherlands.

Completed

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

Official record
Search all trials

Trial summary

High rates of de novo lipogenesis (DNL) and high saturated fatty acid (SFA) fraction in the liver both have been associated with poor metabolic health and hepatic insulin resistance. Interestingly, the end product of DNL is mainly SFA. Read more about this study

Who is it for?
Ages 45 to 75 yearsHealthy volunteers can take part
Conditions the study is for
Insulin Resistance
What is being tested?
High fructose diet and High saturated fat diet
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteNetherlands
Study dates
8 Nov 2021to 24 May 2024
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 45 to 75 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Participants are able to provide signed and dated written informed consent prior to any study specific procedures
  • Participants should have suitable veins for cannulation or repeated venipuncture
  • Women are post-menopausal (defined as at least 1 year post cessation of menses)
  • Aged ≥ 45 and ≤ 75 years
  • Body mass index (BMI) 27 - 38 kg/m2
  • Stable dietary habits (no weight loss or gain >5kg in the past 3 months)
Show all 9Show fewer
  • Sedentary lifestyle (not more than 2 hours of sports per week)
  • No signs of active cardiovascular disease, liver or kidney malfunction
  • Liver fat content ≥ 2% weight/weight.

Who cannot join

  • Type 2 diabetes
  • Previous enrolment in a clinical study with an investigational product during the last 3 months or as judged by the Investigator
  • Patients with congestive heart failure and and/or severe renal and or liver insufficiency or another condition that may interfere with outcomes measured in this study.
  • Any contra-indication MRI scanning
  • Alcohol consumption of >2 servings per day for men and >1 servings per day for woman
  • Smoking in the past 6 months
Show all 10Show fewer
  • Men: Hb <8.4 mmol/L, Women: Hb <7.8 mmol/l
  • Vegetarian, vegan, food intolerant to common foods (e.g. gluten intolerant, lactose intolerant)
  • Medication use that may influence outcome parameters
  • A medical doctor will judge participation eligibility based on the medical history questionnaire, medication use and fasting blood parameters. If the medical doctor advises that a volunteer cannot participate, the volunteer will be excluded from enrollment.

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • Maastricht University Medical Center

    Maastricht, Limburg, 6229 ER

Other trials in Netherlands

About this study

Official title: Comparing the Effect of a High SFA Diet and High Fructose Diet on Hepatic Insulin Sensitivity

High rates of de novo lipogenesis (DNL) and high saturated fatty acid (SFA) fraction in the liver both have been associated with poor metabolic health and hepatic insulin resistance. Interestingly, the end product of DNL is mainly SFA. So far it is unknown whether it is the process of DNL or the accumulation of SFA per se that leads to hepatic insulin resistance. Therefore, it is of interest to compare the effect of a diet that modifies directly hepatic SFA content (4-week high SFA diet) and a diet that changes SFA indirectly by modifying rates of DNL (4-week high fructose diet). To this end, 18 overweight/obese, but otherwise healthy, males and females will take part in the randomized dietary interventions. The primary outcome is hepatic insulin sensitivity (suppression of EGP during clamp) upon a 4-week high SFA diet versus a 4-week fructose diet.

Read the detailed description

Rationale: High rates of de novo lipogenesis (DNL) and high saturated fatty acid (SFA) fraction in the liver both have been associated with poor metabolic health and hepatic insulin resistance. Interestingly, the end product of DNL is mainly SFA. So far it is unknown whether it is the process of DNL or the accumulation of SFA per se that leads to hepatic insulin resistance. This is a clinically relevant question, as it will give novel insights towards the best strategy for prevention and treatment of hepatic insulin resistance. Therefore, it is of interest to compare the effect of a diet that modifies directly hepatic SFA content (high SFA diet) and a diet that changes SFA indirectly by modifying rates of DNL (high fructose diet).

Objective: To determine the effect of a 4-week high SFA diet compared to a 4-week high fructose diet on hepatic insulin sensitivity, on hepatic SFA fraction and DNL.

Study design: This is a randomized intervention study comparing the effects of a 4-week high SFA diet compared to a 4-week high fructose diet on hepatic insulin sensitivity.

Study population: 24 overweight/obese, but otherwise healthy, males and females (BMI 27-38 kg/m2), 45-75 years, will participate in the study. Of these 24 included participants, 18 are expected to meet the study criteria and take part in the measurements following the screening, of these 14 need to complete the study.

Intervention: Participants follow a 4-week high SFA diet and a 4-week high fructose diet.

Main study parameters/endpoints: The primary outcome is hepatic insulin sensitivity (suppression of EGP during clamp) upon a 4-week high SFA diet versus a 4-week fructose diet. Secondary outcomes are DNL upon 4-week high SFA versus 4-week high fructose, and delta (baseline-end intervention) hepatic SFA fraction upon 4-week high SFA versus 4-week high fructose.

Being tested
High fructose diet, High saturated fat diet
Keywords
High fructose diet, High saturated fat diet, De novo lipogenesis, Hepatic saturated fatty acids
Medical subject headings
Insulin Resistance

What participants receive

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

  • High fructose dietOther

    4 week high fructose diet.

    Intended composition (En%):

    Carbohydrates: 60-70 Fat: 20-30 Protein: 10-15 Fructose: 20 SFA: 5

  • High saturated fat dietOther

    4 week high saturated fat diet.

    Intended composition (En%):

    Carbohydrates: 35-45 Fat: 40-50 Protein: 10-15 Fructose: 5 SFA: 20

Study groups in NCT05017675
Study groupRoleWhat they receive
High fructose dietExperimentalParticipants will receive dietary products high in fructose for 4 weeks.
Receives: Other: High fructose diet
High saturated fat dietExperimentalParticipants will receive dietary products high in saturated fat for 4 weeks.
Receives: Other: High saturated fat diet

What is being measured

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

  1. Hepatic insulin sensitivity measured by hyperinsulinemic-euglycemic clamp.

    difference in EGP suppression after the high SFA diet and the high fructose diet

    Measured: after 28 days of each diet

Secondary outcomes (2)
  1. Hepatic fat composition measured by proton magnetic resonance spectroscopy

    The change in liver fat composition (%SFA, %MUFA and %PUFA) after the high SFA diet and the high fructose diet

    Measured: first day of each diet - after 28 days of each diet

  2. De novo lipogenesis measured by deuterated water

    Difference between overnight DNL after the high SFA diet and the high fructose diet. Measured as relative contribution of newly synthesized palmitate in the VLDL-TG pool expressed as %DNL.

    Measured: after 25 days of each diet

Timeline

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

  1. First posted24 Aug 2021
  2. Study start8 Nov 2021
  3. Primary completion19 Apr 2024
  4. Study completion24 May 2024

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
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05017675
Sponsor's protocol ID
NL78281.068.21
Status last verified
Aug 2024
First submitted
10 Aug 2021
Last updated
28 Aug 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Data can be obtained with the principal investigator if desired.

Questions about this trial

What is this clinical trial studying?

A study testing High fructose diet and High saturated fat diet in people with Insulin Resistance, run by Maastricht University Medical Center at 1 site in Netherlands.

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 9 inclusion and 10 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 28 Aug 2024. 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 Netherlands. 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?

Hepatic insulin sensitivity measured by hyperinsulinemic-euglycemic clamp. (time frame: after 28 days of each diet). 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 28 Aug 2024.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in