ClinicalTrials.gg
CompletedNCT03358524Updated Mar 2, 2018

Effects of Vitamin E Supplementation on Free Radicals and Fat Level of Obese Adolescence in Jakarta, Indonesia

A Phase 4 interventional study of Vitamin E 400 UNT and Placebo oral capsule in Obesity, Adolescent and Oxidative Stress, sponsored by Indonesia University. Completed at 1 site in Indonesia. Open to participants aged 14 Years to 18 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-03-02.

Sponsored by Indonesia University · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
69
Allocation
Randomized
Ages
14 Years to 18 Years
Sex
All
01

Study summary

This study evaluate supplementation of vitamin E (alpha-tocopherol) in obese adolescent. Half of the patient will receive vitamin E and the other half received placebo

Read the detailed description

One of obesity treatments that play important role is antioxidant diet. The effects of vitamin E supplementation as an antioxidant treatment in obese adolescent have not been concluded yet in Indonesia. The primary aim of this study is to observe oxidative stress biomarker (isoprostane) in obese teenagers who consume vitamin E for 2 months. The secondary aim is to observe their body mass index and lipid profile after supplementation

The study is randomized, double blind, placebo controlled trial in design and employed a consecutive sampling technique to sample subjects of 70 obese adolescent age 14 - 18 in senior high schools Jakarta.

Blood tests of lipid profile (total cholesterol, HDL, LDL, Triglyceride), fasting blood glucose, liver function (AST,ALT) and oxidative stress biomarker (isoprostane) were taken for every subject after done fasting for 12 hours.

This study is a randomized allocation and double blind technique. subjects divided into two groups, which one group receiving treatment of vitamin E and other group receiving placebo.

The dose and duration of vitamin E treatment is 400 IU per day for 2 months. At the end of treatment, all subjects had to run the same medical interview, physical examination and blood test.

02

Conditions studied

  • Obesity, Adolescent
  • Oxidative Stress

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03

In context

Pediatric Obesity

1,131 studies on the registry are indexed under Pediatric Obesity; 187 are open to participants now.

This study's enrollment of 69 is below the median of 100 across 870 interventional studies indexed under Pediatric Obesity.

Browse Pediatric Obesity studies →

Lead sponsor

Indonesia University is the lead sponsor of 446 studies on the registry; 56 are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 1 (17%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
14 Years to 18 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

  • Obesity ≥ p95 (CDC growth curve)

Exclusion criteria

Exclusion Criteria:

  • Consuming antioxidants drug regularly within recruiting time
  • Consuming Orlistat
Terms in these criteria, in plain language(1)

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.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
69 participants (actual)

Study arms

  • Experimental
    Vitamin E 400 IU

    Vitamin-E Capsule (alpha-tocopherol) 400 IU once per day orally for 8 weeks

    Drug: Vitamin E 400 UNT

  • Placebo comparator
    Placebo

    Placebo capsule once per day orally for 8 weeks

    Drug: Placebo oral capsule

Interventions

  • Vitamin-E capsule (alpha tocopherol) 400 IU (once per day)

    Also known as: Vitamin E

  • DrugPlacebo oral capsule

    sugar capsule manufactured to mimic vitamin E capsule once per day

    Also known as: Placebo

06

What researchers measure

Primary outcomes

  1. Isoprostane (oxidative stress)

    pg/ml

    Time frame: 8 weeks

Secondary outcomes

  1. Total Cholesterol

    mg/dl

    Time frame: 8 weeks

  2. LDL Cholesterol

    mg/dl

    Time frame: 8 weeks

  3. HDL Cholesterol

    mg/dl

    Time frame: 8 weeks

  4. Triglycerides

    mg/dl

    Time frame: 8 weeks

  5. Body weight

    kilograms

    Time frame: 8 weeks

  6. Body Height

    centimeters

    Time frame: 8 weeks

  7. BMI

    kg/m\^2

    Time frame: 8 weeks

07

Study locations

1 site
  • SMA Labschool
    Jakarta, 13220, Indonesia
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Sep 2017 to primary completion in Feb 2018, 4 months.

Of 14 phase 4 interventional studies under Pediatric Obesity, half reached primary completion within 46 months of starting (the median), counting those still running; a quarter within 21 and three quarters within 70. This study's 4 months is below that.

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

Registered
Nov 25, 2017
First posted
Nov 30, 2017
StartActual
Sep 28, 2017
Primary completionActual
Feb 20, 2018
CompletionActual
Mar 1, 2018
Last update
Mar 2, 2018
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 2, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03358524
Responsible party
Ali Alhadar (Pediatric Fellowship at Pediatric Nutrition and Metabolic disease, Indonesia University) — Principal investigator
First posted
Nov 30, 2017
Start date
Sep 28, 2017
Primary completion
Feb 20, 2018
Completion
Mar 1, 2018
Last update
Mar 2, 2018

Oversight

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

Not currently enrolling

This study is completed, as verified in Mar 2018. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Vitamin E

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