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Elevated TriglyceridesPhase 1NCT00535535

Fructose-Induced Palmitate Synthesis in Overweight Subjects

A Phase 1 study testing Fructose and Fructose and Glucose in people with Elevated Triglycerides and Diabetes, run by Rockefeller University at 1 site in United States.

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

Dietary fructose potently exacerbates the dyslipidemia associated with obesity, insulin resistance and accelerated atherosclerosis. In a randomized crossover outpatient study of 15 overweight adults, we will measure the increase over 4 hours in serum VLDL triglyceride palmitate made by the liver from each single oral… Read more about this study

Who is it for?
Ages 18 to 75 yearsHealthy volunteers can take part
What is being tested?
Fructose and Fructose and Glucose
How many people
15 participants
Where
1 siteUnited States
Study dates
Aug 2007to Dec 2011
Phase
Phase 1
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 75 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Males and females, 18-75 years of age
  • Body mass index (BMI) 25-35 and within 10% of maximum weight
  • Willing and able to stop fish oil, psyllium, other non-prescribed vitamins/supplements for 1 week prior to study until completion of study
  • Willing to not drink alcohol for 24 h before each day of blood sampling

Who cannot join

  • Diabetes or other endocrine disorder, hepatitis or other liver disorder, HIV, or autoimmune disease
  • Medication(s) known to affect lipids, including hormonal contraceptives
  • Recent acute illness
  • Gastrointestinal disease resulting in significant GI dysfunction or malabsorption
  • History of fasting TG >800 mg/dl
  • History of ethanol abuse (current intake >2 drinks/d) or illicit drugs
Show all 11Show fewer
  • History of severe psychiatric illness
  • If female, pregnant or breastfeeding
  • Participation in an investigational drug study within one month of screening
  • Unusual diet or extreme level of physical activity
  • Have any other condition, which in the opinion of the investigator, should prohibit the participation in the study

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Rockefeller University

    New York, New York, 10021

Other trials in United States

About this study

Dietary fructose potently exacerbates the dyslipidemia associated with obesity, insulin resistance and accelerated atherosclerosis. In a randomized crossover outpatient study of 15 overweight adults, we will measure the increase over 4 hours in serum VLDL triglyceride palmitate made by the liver from each single oral dose of fructose (0.5 g/kg), fructose:glucose 1:1 (1 g/kg) or fructose:glucose 1:1 (2 g/kg). Our hypotheses are that the synthesis of palmitate from dietary fructose will be 1) greater when consumed with glucose and 2) show a dose-response. The lipogenic responses will be compared and correlated with markers of carbohydrate and lipid flux measured after fasting and post-fructose. The results will serve as a guide to the development of a new outpatient probe of the de novo lipogenic pathway in subjects who vary in their lipogenic response to oral fructose. These studies should ultimately yield valuable new information about the mechanisms linking dietary carbohydrate to elevated triglycerides, diabetes and cardiovascular disease.

Being tested
Fructose, Fructose and Glucose
Keywords
Elevated triglycerides, Diabetes, Cardiovascular disease
Medical subject headings
Hypertriglyceridemia, Diabetes Mellitus, Cardiovascular Diseases

What participants receive

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

  • FructoseDietary supplement

    Fructose, 0.5 g/kg

  • Fructose and GlucoseDietary supplement

    Fructose:Glucose 1:1, 1 g/kg

  • Fructose and GlucoseDietary supplement

    Fructose:Glucose 1:1, 2g/kg

What is being measured

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

  1. A comparison of the iAUC in VLDL TG palmitate 4 hours after F:G1:1, 1g/kg, vs. 1) fructose 0.5g/kg, and 2) F:G:1:1, 2g/kg.

Secondary outcomes (1)
  1. Linear regression analysis of the relationship between the iAUC in VLDL TG palmitate after oral fructose and markers of carbohydrate and lipid flux

Timeline

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

  1. First posted26 Sep 2007 (estimated)
  2. Study startAug 2007
  3. Primary completionDec 2011
  4. Study completionDec 2011

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 1
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Crossover
Masking
Single blind
Enrolment
15 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00535535
Sponsor's protocol ID
LHU-0616
Status last verified
Sep 2013
First submitted
24 Sep 2007
Last updated
23 Sep 2013
Results posted
No

Publications

  • Hudgins LC, Parker TS, Levine DM, Hellerstein MK. A dual sugar challenge test for lipogenic sensitivity to dietary fructose. J Clin Endocrinol Metab. 2011 Mar;96(3):861-8. doi: 10.1210/jc.2010-2007. Epub 2011 Jan 20.

    PubMed 21252253

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Fructose and Fructose and Glucose in people with Elevated Triglycerides and Diabetes, run by Rockefeller University at 1 site in United States.

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 4 inclusion and 11 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 23 Sep 2013. 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 United States. 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.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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

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?

A comparison of the iAUC in VLDL TG palmitate 4 hours after F:G1:1, 1g/kg, vs. 1) fructose 0.5g/kg, and 2) F:G:1:1, 2g/kg.. 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 NCT00535535, 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 23 Sep 2013.

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