ClinicalTrials.gg
TerminatedNCT03567837Updated Mar 15, 2024

Fructose-induced Hepatic De Novo Lipogenesis in Adolescents With Obesity

An interventional study of Fructose + Glucose Beverage in Adolescent Obesity, sponsored by The Rogosin Institute. Terminated at 1 site in United States. Open to participants aged 12 Years to 21 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-03-15.

Sponsored by The Rogosin Institute · Not applicable, Interventional, and Screening

Why this study was terminated
It was stopped due to the inability to recruit during the Covid epidemic.

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Phase
Not applicable
Study type
Interventional
Enrollment
12
Allocation
Non-randomized
Ages
12 Years to 21 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 558 studies in Pediatric Obesity with a site in United States — 75 open to participants now, 110 under way, 3 of them phase 3. Pediatric Obesity · United States.

Enrollment
439th of 475
12 · median 95
Started
2018
with 43 others
No phase
423 of 558
53 open now
Registered
268th of 558
by date

Among the 558 studies in Pediatric Obesity with a site in United States, this one is the 439th largest by enrollment of the 475 interventional ones that give a count, is one of 44 that started in 2018, is one of 423 with no phase, and was the 268th registered.

Pediatric Obesity

1,131 studies on the registry are indexed under Pediatric Obesity; 185 are open to participants now.

Browse Pediatric Obesity studies →

Open to participants now

75 of the 558 studies in Pediatric Obesity with a site in United States are open now. Recruiting first, the newest first:

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All 75 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 122 Pediatric Obesity studies recruiting now, 18 (15%) set no upper age limit and 102 (84%) stop at 75 or younger; 112 take children under 18; 68 take healthy volunteers.

This study: 12 Years to 21 Years · all sexes · healthy volunteers too.

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02

Study summary

In the U.S., dietary fructose has increased in parallel with the increase in obesity and may promote the development of diabetes and other chronic diseases. The largest source of dietary fructose is sweetened beverages that are consumed by adolescents more than any other age group.

This protocol will compare the rates of hepatic de novo lipogenesis (DNL), a process in the liver that changes sugar into fat, in two groups of obese adolescents - one with prediabetes and the other, metabolically healthy. Blood will be sampled before and hourly for 3 hours after the consumption of a fructose-containing beverage. We hypothesize that the pre-diabetic group will show greater DNL in response to fructose. This would support other evidence that increased fructose-induced hepatic DNL is an early mechanism linking dietary sugar to the adverse metabolic sequelae of obesity, including diabetes, fatty liver, dyslipidemia and coronary disease.

Read the detailed description

Hypothesis: Hepatic DNL in response to the ingestion of fructose:glucose 1:1 is significantly greater in adolescents with obesity and prediabetes compared to adolescents with obesity who are metabolically healthy.

Thirty obese adolescents, ages 12-21 years, will be recruited to each of two groups: 1) prediabetes (n=15) and 2) metabolically healthy (n=15). An attempt will be made to achieve similar age, sex and BMI distributions in the two groups.

Visit 1- Screening: Eligible subjects will be enrolled after Informed consent/assent are obtained by a physician investigator. The medical history will be reviewed and a physical exam performed, including an assessment of pubertal status. Blood will be sampled after at least a 12 hour fast (except water) for complete blood count, serum glutamate pyruvate, glucose, HbA1C, and lipid panel, if not previously documented in the medical record within three months of the screening visit. These tests may be done without fasting, but if the glucose or lipid results are not normal, these two tests must be repeated after fasting.

Visit 2 - Sugar Challenge Test with Blood Sampling: Within three months of the screening visit, eligible participants will return after at least a 12 hour fast (except water). General health, family history and recent diet will be reviewed. The height, weight, waist circumference at the umbilicus, and blood pressure will be recorded. A urine sample will be obtained for microalbuminuria. After placement of an intravenous catheter and withdrawal of the baseline blood samples, participants will drink a sweet beverage prepared by a dietician (fructose:glucose 1:1, 3g/kg, in water). Blood sampling will continue every hour for three hours( \~12 mL per time point).

Percent body fat will be measured by bioimpedance. The percent body fat will be calculated by computer software with prediction equations validated in the pediatric and adult age ranges.

Plasma samples will be obtained at 4 time points (0, 1, 2 and 3 hours), the fatty acid composition of plasma very low density lipoprotein triglyceride (VLDL TG), including %palmitate (16:0), will be measured. A lipid panel and VLDL triglycerides and apolipoprotein B levels will also be measured at each time point. Other assays to be performed include insulin and and glucose, HbA1C and high sensitivity C reactive protein (hsCRP, a marker of inflammation). The urine sample will be assayed for microalbuminuria (albumin/creatinine >30 mg/g).

An interim analysis of the primary endpoint (increase in VLDL TG %16:0) will be performed in the first three subjects of each group to determine whether the dose of sugar and sampling duration of 3 hours are sufficient to produce a measurable increase in VLDL TG %16:0.

03

Conditions studied

  • Adolescent Obesity

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04

Who can participate

Ages eligible
12 Years to 21 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Age: 12-21 years old.
  2. percentile >95th and \<140th percentile of the 95th, maximum weight 110 kg.
  3. Group 1: \<5.7% and no history of fasting hyperglycemia (glucose greater or equal to100 mg/dL and/or HbA1C greater or equal to 5.7%), sustained hypertension (>95th percentile) or abnormal lipids (LDL cholesterol \<130 mg/dL, TG \<130 mg/dL, HDL-C >40 mg/dL).

    Group 2: HbA1C greater or equal to 5.7 to 6.49%

  4. Pubertal or post- pubertal stage (pre-pubertal excluded).
  5. Willing and able to stop fish oil, fiber supplement, other non-prescribed vitamins/supplements for 1 week prior to study visit.
  6. Willing to not drink alcohol for at least 48 hours before the study visit.
  7. Willing to refrain from vigorous exercise the day before the study visit.

Exclusion criteria

Exclusion Criteria:

  1. Diabetes (fasting blood glucose greater or equal to126 mg/dL, and/or >6.5% and/or history of a 2 hour oral glucose tolerance test (OGTT) >200 mg/dL).
  2. Triglycerides >500 mg/dL, LDL cholesterol >160 mg/dL.
  3. Medications affecting lipid or glucose metabolism, including hormonal .
  4. Liver disease or intestinal dysfunction. Serum glutamate oxaloacetate and/or serum glutamate pyruvate \< 2x upper limit normal is permitted if there is no diagnosis of liver disease by a gastroenterologist.
  5. Weight loss >10% in past 6 months.
  6. Cigarette smoking.
  7. Alcohol or drug abuse.
  8. Systemic illness, including polycystic ovary disease and acute infections within two weeks of study visits.
  9. Anemia.
  10. Pregnancy or breast feeding.
  11. Psychiatric illness.
  12. Extreme diet or level of physical activity.
  13. Fructose intolerance.
  14. Implanted electronic devices (bioimpedance measurement).
  15. Any other condition, which in the opinion of the principal investigator, should prohibit participation in the study.
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Not applicable
Primary purpose
Screening
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
12 participants (actual)

Study arms

  • Active comparator
    Obese Metabolically Healthy

    Intervention: Oral challenge of Fructose+Glucose Beverage 1:1, 3g/kg

    Other: Fructose + Glucose Beverage

  • Experimental
    Obese Pre-diabetes

    Intervention: Oral challenge of Fructose+Glucose Beverage 1:1, 3g/kg

    Other: Fructose + Glucose Beverage

Interventions

  • OtherFructose + Glucose Beverage

    The intervention is an oral sugar challenge with blood sampling over three hours.

06

What researchers measure

Primary outcomes

  1. Increase in VLDL TG palmitate

    In the 2 study groups: a comparison of the increase in VLDL TG palmitate over 3 hours after ingestion of a beverage made with fructose and glucose. after an oral challenge of fructose+glucose

    Time frame: Three hours

Secondary outcomes

  1. Correlation of the increase in VLDL TG palmitate and markers of carbohydrate and fatty acid metabolism

    In the two study groups: a comparison of other markers of carbohydrate and fatty acid metabolism (i.e. VLDL and total TG, cholesterol, apolipoprotein B, insulin, and glucose) before and after the oral sugar challenge. 2) To correlate these markers with the increase in VLDL TG %16:0.

    Time frame: Three hours

07

Study locations

1 site
  • Weill Cornell Medicial College
    New York, New York 10065, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Aug 2018 to primary completion in Jun 2019, 9 months.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 11, 2018
First posted
Jun 26, 2018
StartActual
Aug 13, 2018
Primary completionActual
Jun 4, 2019
CompletionActual
Jun 4, 2019
Last update
Mar 15, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 15, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03567837
Lead sponsor
The Rogosin Institute
Responsible party
Sponsor
First posted
Jun 26, 2018
Start date
Aug 13, 2018
Primary completion
Jun 4, 2019
Completion
Jun 4, 2019
Last update
Mar 15, 2024

Study contacts

Lisa Hudgins, MD
principal investigator · The Rogosin Institute

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is terminated, as verified in Mar 2024. You cannot join it, but the record below documents what was studied.

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