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Metabolic SyndromeIMPARTNCT01230632

Metabolic Phenotyping of Individuals Born Following Assisted Reproduction Techniques

A study testing high fat overfeeding in people with Metabolic Syndrome and Diabetes, run by University of Adelaide at 1 site in Australia.

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

This study is to compare the effects of high fat overfeeding on metabolic risk factors in children born though assisted reproduction technologies (ART) versus children conceived naturally (controls). Read more about this study

Who is it for?
Ages 16 to 26 yearsHealthy volunteers can take part
Conditions the study is for
Metabolic Syndrome, Diabetes
What is being tested?
high fat overfeeding
Could I receive a placebo?
No, everyone receives an active treatment
How many people
34 participants
Where
1 siteAustralia
Study dates
Sep 2010to Sep 2013
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 16 to 26 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Who may be able to join

  • Post-pubertal healthy individuals aged 18-25years

Who cannot join

  • Participants are ineligible if they have any significant medical conditions (e.g. personal history or clinical manifestation of cardiovascular disease, type 2 diabetes),
  • strong family histories of diabetes or cardiovascular disease (e.g. first-degree relatives),
  • take concomitant medications (eg: metformin),
  • if they smoke or drink >140g of alcohol/week, , or
  • were born prematurely (<37 weeks), or
  • from mothers who had gestational diabetes.

Trial locations and contacts

1 site in 1 country.

Australia1 site
  • Leonie Heilbronn

    Adelaide, South Australia, 5000

Other trials in Australia

About this study

Official title: Metabolic Phenotyping of Individuals Born Following Assisted Reproduction

This study is to compare the effects of high fat overfeeding on metabolic risk factors in children born though assisted reproduction technologies (ART) versus children conceived naturally (controls). The investigators will utilize state of the ART measures to characterize the physiological, endocrine and molecular responses to high fat overfeeding.

The investigators hypothesize that children conceived following ART will have greater responses to high fat dietary challenge and that this will be associated with DNA hypermethylation of genes that are involved in lipid metabolism.

Read the detailed description

This study represents a novel initiative by the investigators to determine whether children conceived through ART have different metabolic responses at baseline or in response to high fat overfeeding as compared to age and body mass index-matched spontaneously conceived controls. Furthermore, the investigators will identify any differences in DNA methylation of candidate genes involved in lipid metabolism in adipose tissue and blood, to determine whether this is related to adverse outcomes during high fat overfeeding. The results from this study will help answer growing questions of the future health of In vitro fertilisation (IVF) babies, and may stimulate further research into optimising protocols for ovarian stimulation or in-vitro conditions during early blastocyst development.

Being tested
high fat overfeeding
Keywords
assisted reproduction technology, Metabolic risk factors, In Vitro Fertilisation
Medical subject headings
Metabolic Syndrome, Diabetes Mellitus

What participants receive

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

  • high fat overfeedingDietary supplement

    Also called 3 days overfeeding

    Dietary Supplement:3 days overfeeding

Study groups in NCT01230632
Study groupRoleWhat they receive
Dietary SupplementExperimental3 days high fat food
Receives: Dietary Supplement: high fat overfeeding

What is being measured

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

  1. intravenous glucose tolerance test (IVGTT)

    After infusion of glucose bolus(0.3mg/kg, 50% glucose), blood samples are taken at 0,1,3,5,7,10,20,30 and 60 minutes. The value of glucose is recorded respectively (unit:mMol/L).

    Measured: 18 months

Secondary outcomes (1)
  1. insulin sensitivity

    A 2-hour hyperinsulinemic euglycemic clamp (60mU/m2/min) is used to measure insulin sensitivity(µmol/min/kg Fat Free Mass). This is calculated by the formula from the amount of dextrose necessary to maintain blood glucose at 5mmol/L.

    Measured: 18 months

Timeline

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

  1. First posted29 Oct 2010 (estimated)
  2. Study startSep 2010
  3. Primary completionApr 2013
  4. Study completionSep 2013

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
Health services research
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
34 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01230632
Sponsor's protocol ID
100510a
Acronym
IMPART
Status last verified
Dec 2013
First submitted
28 Oct 2010
Last updated
10 Dec 2013
Results posted
No
Data monitoring committee
Yes

Publications

  • Chen M, Liu B, Wilkinson D, Hutchison AT, Thompson CH, Wittert GA, Heilbronn LK. Selenoprotein P is elevated in individuals with obesity, but is not independently associated with insulin resistance. Obes Res Clin Pract. 2017 Mar-Apr;11(2):227-232. doi: 10.1016/j.orcp.2016.07.004. Epub 2016 Aug 11.

    PubMed 27524654
  • Chen M, Wu L, Zhao J, Wu F, Davies MJ, Wittert GA, Norman RJ, Robker RL, Heilbronn LK. Altered glucose metabolism in mouse and humans conceived by IVF. Diabetes. 2014 Oct;63(10):3189-98. doi: 10.2337/db14-0103. Epub 2014 Apr 23.

    PubMed 24760136

Questions about this trial

What is this clinical trial studying?

A study testing high fat overfeeding in people with Metabolic Syndrome and Diabetes, run by University of Adelaide at 1 site in Australia.

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 1 inclusion and 6 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 10 Dec 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 Australia. 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?

intravenous glucose tolerance test (IVGTT) (time frame: 18 months). 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 NCT01230632, which also lists 2 linked publications.

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 10 Dec 2013.

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