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CompletedNCT01622751Updated Jun 19, 2012

Plasma Adiponectin Level and Sleep Structures in Children With Prader-Willi Syndrome

An observational study in Prader-Willi Syndrome and Obesity, sponsored by Samsung Medical Center. Completed. Open to participants aged 5 Years to 12 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2012-06-19.

Sponsored by Samsung Medical Center · Observational

Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
46
Ages
5 Years to 12 Years
Sex
All
01

Study summary

Context: Adiponectin is an adipose tissue-derived hormone with an insulin sensitizing effect, and has been related to obstructive sleep apnea syndrome. In addition, children with Prader-Willi syndrome (PWS) suffer from excessive daytime sleepiness and the abnormality of rapid eye movement (REM) sleep.

Objective: To determine if the sleep stages are related to the plasma levels of adiponectin, resistin, and RBP4 (retinol binding protein-4), and whether these relationships are influenced by age, obesity and insulin resistance.

Read the detailed description

This comparative study was carried out in 28 PWS children and 18 controls. The enrolled PWS children were volunteers out of a pool of approximately 100 PWS children followed at Samsung Medical Center [median age 8.0 years, interquartile range (7.0-10.5 years), BMI: median 24.2 kg/m2 (23.0-27.5 kg/m2)] and 18 obese healthy children [median age 9.0 years interquartile range (7.0-11.0 years), BMI: median 24.2 kg/m2 interquartile range (23.1-27.6 kg/m2)].

02

Conditions studied

  • Prader-Willi Syndrome
  • Obesity

Keywords

  • REM sleep
  • Adiponectin
  • Prader-Willi syndrome
03

In context

Prader-Willi Syndrome

142 studies on the registry are indexed under Prader-Willi Syndrome; 23 are open to participants now.

This study's enrollment of 46 is close to the median of 51 across 35 observational studies indexed under Prader-Willi Syndrome.

Browse Prader-Willi Syndrome studies →

Lead sponsor

Samsung Medical Center is the lead sponsor of 1,005 studies on the registry; 148 are open to participants now.

Of its 7 completed or terminated interventional studies of FDA-regulated products, 1 (14%) have results posted.

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

04

Who can participate

Ages eligible
5 Years to 12 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

The study population comprised 28 children with PWS and 18 controls. The enrolled children with PWS were volunteers from a pool of approximately 100 children with PWS followed up at the Samsung Medical Center. The controls were healthy children from several elementary and middle schools located in the southern areas of Seoul.

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

  • Prader Willi syndrome healthy children

Exclusion criteria

Exclusion Criteria:

  • history of seizure,
  • mental or brain illness,
  • adenoidectomy,
  • tonsillectomy,
  • craniofacial anomalies and any treatment at the time of the study.
05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
46 participants (actual)
06

Study locations

No study locations are listed for this record.

07

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jan 2007 and a completion of Jun 2007. It does not say whether these dates are actual or estimated.

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

Registered
Jan 18, 2012
First posted
Jun 19, 2012
Start
Jan 2007
CompletionActual
Jun 2007
Last update
Jun 19, 2012
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
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 Jun 19, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
08

Registry details

Key details

Study ID
NCT01622751
First posted
Jun 19, 2012
Start date
Jan 2007
Completion
Jun 2007
Last update
Jun 19, 2012

Study contacts

Dong-Kyu Jin, M.D.
principal investigator · Samsung Medical Center

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2012. You cannot join it, but the record below documents what was studied.

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