Study on the Compensatory Mechanism of Iodine Nutrition and the Optimal Intake Level of Lactating Women
Status unconfirmed
Conditions studied: Nutritional Requirements
In brief
Due to the lack of direct evidence of optimal iodine intake of Chinese children, pregnant and lactating women and infants were found during the recent revision of Chinese dietary reference intakes (DRIs) of iodine in 2013 by the applicant Pro. Zhang, and no systematical research about compensatory mechanism of iodine nutrition in lactating women was found yet. Previous study funded by United Nations International Children's Emergency Fund (UNICEF) cooperated with the international experts on iodine and key project of national natural science foundation of China under the guidance of Pro. Zhang, had obtained the safe intake range of iodine from children and pregnant women, more than 10 joint papers were published, which laid the foundation of population study and international cooperation.
Key facts
- Study ID
- NCT04492657
- Run by
- Tianjin Medical University
- People needed
- 600
- Starts
- 2020-01-01
- Expected to finish
- 2024-12-31
- Last updated by the study team
- 2020-08-11
Who can join
Age: 0 and older, up to 40. Sex: any. Healthy volunteers: accepted.
You may qualify if…
- Women in their third trimester:⑴Aged 18-40, who have lived in the area for 1 year;⑵Single pregnancy;⑶Those who have no special dietary habits;
- Lactating woman:⑴Breastfeeding a child;⑵Normal thyroid function during pregnancy;⑶Term delivery (38-42 weeks of gestation);
- Infants and young children:⑴0-6 months;⑵Breastfeeding;⑶Full term (38-42 weeks of gestation);⑷Normal birth weight (2500-4000g);⑸The thyroid-stimulating hormone (TSH) value of heel blood was normal;⑹Apgar score 8.
You may not qualify if…
- Women in their third trimester:⑴Smoking or drinking;⑵Iodized drugs or contrast agents have been used in the past year;⑶A history of thyroid disease, autoimmune disease, endocrine disease, heart disease, chronic disease or family hereditary disease, etc;
- Lactating woman:⑴A history of thyroid disease, autoimmune disease, endocrine disease, heart disease, chronic disease or family hereditary disease, etc;
- Infants and young children:⑴Have pathological jaundice, autoimmune disease, congenital heart disease and other diseases.
Where it is running
- Boston University School of Medicine; Iodine Global Network (IGN) — Boston, Massachusetts, United States (enrolling)
- Institute of Nutrition and Health, Chinese Center for Disease Control and Prevention — Beijing, China (enrolling)
- Shandong Institute of Endemic Disease Control and Prevention — Shandong, China (enrolling)
- Swiss federal institute of Technology (ETH) — Zurich, Switzerland (enrolling)
Full record on ClinicalTrials.gov
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