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HyperglycemiaNCT05477511

The Extension of HAPO Follow-up Study

An observational study of Hyperglycemia and Pregnancy, run by Chinese University of Hong Kong at 1 site in Hong Kong.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The prevalence of diabetes mellitus (DM) and cardiovascular disease (CVD) escalate remarkably worldwide and obesity becomes an epidemic disease. This study is interested in how the model of Developmental Origin of Health and Disease (DOHaD) influence individual's health status as they reach young adulthood. Read more about this study

Who is it for?
Ages 16 years and olderHealthy volunteers can take part
Conditions the study is for
Hyperglycemia, Pregnancy, Overnutrition
How many people
900 participants
Where
1 siteHong Kong
Study dates
28 Aug 2020to 31 Dec 2024
Phase
Observational
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 years and older
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Study population: Hong Kong women and their 18 year-old offspring

Who may be able to join

  • Mother-child pairs who had been assessed in HAPO follow-up study at either 7 years or 11-14 years old

Who cannot join

  • Children born preterm before 37 weeks of gestation
  • Non-Chinese
  • Mothers' OGTT results were unblinded during pregnancy

Trial locations and contacts

1 site in 1 country.

Chi Chiu Wang contact

+852 35052804

ccwang@cuhk.edu.hk

Hong Kong1 site, 1 recruiting
  • Prince of Wales Hospital

    Hong Kong, Hong Kong, China, Shatin

    Chi Chiu Wang

    Recruiting

Other trials in Hong Kong

About this study

Official title: The Effect of in Utero Hyperglycaemia, Maternal Overnutrition and Interaction With Postnatal Lifestyle on Cardiometabolic Risk at Young Adulthood - Extension of HAPO Follow-up Study

The prevalence of diabetes mellitus (DM) and cardiovascular disease (CVD) escalate remarkably worldwide and obesity becomes an epidemic disease. This study is interested in how the model of Developmental Origin of Health and Disease (DOHaD) influence individual's health status as they reach young adulthood. Since the mothers from HAPO study have not been subjected to antenatal treatment on the various degree of maternal hyperglycaemia in pregnancy, this would be an unique cohort that allows determination of the effect of various degree of maternal hyperglycaemia below the level of overt DM, on children's cardiometabolic risk in Chinese population.

Read the detailed description

The investigators recruited 1760 Chinese pregnant women between 2000 and 2005. The HAPO study investigated whether any adverse outcome was associated with mild degree of GDM. All mothers underwent a 75-gram OGTT at 24-32 weeks gestation, but clinicians were blinded to the results as long as the fasting PG was ≤ 5.8 mmol/L \& 2-hour PG ≤ 11.1 mmol/L. The maternal serum C-peptide and HbA1c, cord serum C-peptide and early neonatal PG, pregnancy outcome and the neonatal anthropometric parameters are available for future study. This is so far the largest cohort in a Chinese population who has been investigated for glycaemia during pregnancy, but with OGTT results remained undisclosed to subjects and clinicians. This unique cohort can allow us to study the effect of in-utero hyperglycemia on the cardiometabolic risks at childhood, adolescence and adulthood.

Eligible subjects are all mother-child pairs participating in the original HAPO study. Children born preterm before 37 weeks of gestation, non-Chinese and whose mother's OGTT result were unblinded during pregnancy will be excluded.The family (the child and the mother) will be invited for a third follow-up assessment.

Keywords
Hyperglycemia, Pregnancy, Overnutrition, Maternal Obesity, Diabetes Mellitus, Cardiovascular Diseases, Gestational Diabetes Mellitus, Hypertension, Young Adulthood
Medical subject headings
Hyperglycemia, Overnutrition, Diabetes Mellitus, Cardiovascular Diseases, Hypertension, Pregnancy in Obesity, Diabetes, Gestational

What participants receive

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

Study groups in NCT05477511
Study groupRoleWhat they receive
MotherChinese mother in Hong Kong who had been assessed in HAPO follow-up study when their children was at either 7 or 11-14 years of age
18 years old child of the enrolled motherChildren who had been assessed in HAPO follow-up study at either 7 or 11-14 years of age

What is being measured

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

  1. Rate of DM in the young adult offspring

    Study specimens would be collected to identify the rate of DM in young adult offspring.

    Measured: At a time around 18 years of age

Secondary outcomes (1)
  1. Rate of impaired glucose regulation, obesity and adiposity, hypertension and various insulin indices

    Study specimens would be collected to identify the percentage of impaired glucose regulation, obesity and adiposity, hypertension and various insulin indices in young adult offspring.

    Measured: At a time around 18 years of age

Timeline

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

  1. First posted28 Jul 2022
  2. Study start28 Aug 2020
  3. Primary completion31 Dec 2024 (estimated)
  4. Study completion31 Dec 2024 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Cross-sectional
Enrolment
900 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05477511
Sponsor's protocol ID
HAPO-005
Status last verified
Sep 2023
First submitted
21 Jul 2022
Last updated
22 Sep 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • See protocol

Questions about this trial

What is this clinical trial studying?

An observational study of Hyperglycemia and Pregnancy, run by Chinese University of Hong Kong at 1 site in Hong Kong.

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 3 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: status not confirmed, as of the sponsor's last update on 22 Sep 2023. 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 Hong Kong. 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?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Chi Chiu Wang (+852 35052804, ccwang@cuhk.edu.hk), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Rate of DM in the young adult offspring (time frame: At a time around 18 years of age). 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 NCT05477511, 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 22 Sep 2023.

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