Research on twins born in Guangzhou

Twins Born in Guangzhou Cohort Study

Observational Guangzhou Women and Children's Medical Center · NCT03331133

This study is trying to understand how genes and the environment affect diseases by looking at twins born in Guangzhou, China, from birth to age 18.

Quick facts

Study typeObservational
Enrollment1000 (estimated)
AgesN/A to 18 Years
SexAll
SponsorGuangzhou Women and Children's Medical Center Academic / other
Locations1 site (Guangzhou, Guangdong)
Trial IDNCT03331133 on ClinicalTrials.gov

What this trial studies

The 2-BIG is a twin birth cohort study based in Guangzhou, China, aimed at understanding how genetic and environmental factors contribute to diseases. It collects extensive data on twins from birth to 18 years, including biological samples and information on family and lifestyle exposures. By utilizing a twin cohort, the study seeks to minimize biases related to age, gender, and environment, allowing for a clearer analysis of disease etiology. The research focuses on chronic diseases and aims to establish a database for calculating the heritability of traits in the Chinese population.

Who should consider this trial

Good fit: Ideal candidates for this study are live twins born at the Guangzhou Women and Children's Medical Center who are permanent residents or families intending to stay in Guangzhou for at least three years.

Not a fit: Patients who do not meet the residency requirement or are not twins born in the specified medical center may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance our understanding of disease development in twins, potentially leading to improved prevention and treatment strategies.

How similar studies have performed: While twin studies are common in various populations, this specific cohort study in China is relatively rare and aims to provide novel insights into the heritability of traits associated with chronic diseases.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Live twins delivered in Guangzhou Women and Children's Medical Center
2. Permanent residents or families intended to remain in Guangzhou with their children for no less than 3 years
3. Baseline information during pregnancy available

Where this trial is running

Guangzhou, Guangdong

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Twin DiseasesImmune DevelopmentChildhood ObesityHost and MicrobiomeNeurodevelopmentTwinEarly DevelopmentCohort
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.