Born In Guangzhou Intervention Study
BIGIS
1 other identifier
interventional
1,160
1 country
2
Brief Summary
The main objective of this study is to test the efficacy of an intervention package (dietary, physical and lifestyle modification) during pregnancy in improving the clinical outcomes of mother-infant dyads.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jul 2024
Longer than P75 for not_applicable
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 9, 2022
CompletedFirst Posted
Study publicly available on registry
August 17, 2022
CompletedStudy Start
First participant enrolled
July 22, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2030
ExpectedStudy Completion
Last participant's last visit for all outcomes
September 1, 2032
April 10, 2025
April 1, 2025
6.1 years
August 9, 2022
April 7, 2025
Conditions
Outcome Measures
Primary Outcomes (11)
Maternal gestational weight change
Maternal weight prior to pregnancy (or within 8 weeks of pregnancy), at around 20, 26, 32 weeks' gestation, before delivery and one month postpartum will be determined by digital scales, changes in maternal weight during pregnancy will be recorded in kg.
From pregnancy until one month postpartum
Newborn size
Weight (kg) will be measured with digital scales and height/length (cm) will be measured in supine with tape, comparing against reference to derived gestational age and sex-specific growth parameter Z-scores. To identify whether the neonates was small/appropriate/large for gestational age.
Day 1 after birth
Neonatal skinfold thickness (at birth)
Measured with skinfold caliper, a summation of skinfold thickness at several body sites including triceps, biceps, subscapular, suprailiac and thigh, will be derived in cm.
Day 1 after birth
Maternal blood lipid profile postpartum (3 years)
Measured by autoanalyzer, total lipids (total cholesterol, triglycerides, high/low density protein cholesterol) expressed in mmol/L.
Three years after delivery
Maternal blood glucose profile postpartum (3 years)
Measured by autoanalyzer, blood glucose level in mmol/L.
Three years after delivery
Maternal blood insulin profile postpartum (3 years)
Measured by commercial ELIZA kit, total and free insulin in pmol/L.
Three years after delivery
Child blood lipid profile (3 years)
Measured by autoanalyzer, total lipids (total cholesterol, triglycerides, high/low density protein cholesterol) expressed in mmol/L.
At three years of age
Child blood glucose profile (3 years)
Measured by autoanalyzer, blood glucose level in mmol/L.
At three years of age
Child blood insulin profile (3 years)
Measured by commercial ELIZA kit, total and free insulin in pmol/L.
At three years of age
Child growth parameters (3 years)
Weight measured with digital scales in kg, length measured in standing position in cm, using weight and length to derived body mass index, comparing against age and sex-specific references for Z-score.
At three years of age
Incidence of pregnancy complications
Incidence of physician-diagnosed pregnancy complications, including gestational diabetes mellitus, hypertensive disorders
From 20 weeks' gestation until one month postpartum
Secondary Outcomes (18)
Child skinfold thickness (6 months)
At six months of age
Child skinfold thickness (1 year)
At one year of age
Child skinfold thickness (3 years)
At three years of age
Child skinfold thickness (6 years)
At six years of age
Child growth parameters (6 months)
At six months of age
- +13 more secondary outcomes
Study Arms (2)
Proactive management during pregnancy
EXPERIMENTALA combination of dietary, physical activity and lifestyle modification.
Standard Care
NO INTERVENTIONNo additional intervention beyond standard care procedure.
Interventions
This lifestyle modification aiming to provide proactive health management during pregnancy, which contains the following: 1) balanced dietary intake based on the Chinese Dietary Guideline; 2) sufficient physical activity; 3) changes in lifestyles (e.g. sleep, sun exposure etc.)
Eligibility Criteria
You may qualify if:
- Pregnant women attending prenatal care at Guangzhou Women and Children's Medical Center (GWCMC) \<20 weeks' gestation
- Pregnant women plan to deliver at GWCMC
- Pregnant women intend to reside in Guangzhou for at least 3 years
You may not qualify if:
- Multiple pregnancies
- Existing medical conditions (uncontrolled diabetes, hypertension or thyroid disease; other serious cardiovascular diseases, respiratory or systematic disorders)
- Use of drugs (aspirin, metformin, low molecular weight heparin)
- Women with reading and/or writing difficulties
- Women with serious mental disorders
- Women with eating disorders
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
Fuying Campus, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
Guangzhou, China
Zhujiang new town campus, Guangzhou Women and Children's Medical Center, China
Guangzhou, China
Related Publications (1)
Qiu X, Lu JH, He JR, Lam KH, Shen SY, Guo Y, Kuang YS, Yuan MY, Qiu L, Chen NN, Lu MS, Li WD, Xing YF, Zhou FJ, Bartington S, Cheng KK, Xia HM. The Born in Guangzhou Cohort Study (BIGCS). Eur J Epidemiol. 2017 Apr;32(4):337-346. doi: 10.1007/s10654-017-0239-x. Epub 2017 Mar 20.
PMID: 28321694BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- CARE PROVIDER, OUTCOMES ASSESSOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Director of the Department of Women's Health
Study Record Dates
First Submitted
August 9, 2022
First Posted
August 17, 2022
Study Start
July 22, 2024
Primary Completion (Estimated)
September 1, 2030
Study Completion (Estimated)
September 1, 2032
Last Updated
April 10, 2025
Record last verified: 2025-04
Data Sharing
- IPD Sharing
- Will not share