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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02586220
Other study ID # XHEC-C-2015-003-2
Secondary ID
Status Completed
Phase
First received
Last updated
Start date August 2015
Est. completion date July 2016

Study information

Verified date March 2020
Source Xinhua Hospital, Shanghai Jiao Tong University School of Medicine
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Recent studies have found, in both developed and developing countries, there is still a considerable number of pregnant women in iodine deficiency status.Our overall aim is to monitor iodine status of pregnant women in China, and to examine the correlation between maternal urine iodine concentration (UIC) and newborn physical development level.


Description:

Background: Recent studies have found, in both developed and developing countries, there is still a considerable number of pregnant women in iodine deficiency status. Our overall aim is to monitor iodine status of pregnant women in China, and to examine the correlation between maternal urine iodine concentration (UIC) and newborn physical development level.

Design: prospective cohort study

Methods: During August - December 2015,250 participants(28-32 weeks' gestation) were selected to participate in the study.The investigators collect the spot urine samples(n=750) once every two weeks.

Setting: Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine.

Participants: 150 normal pregnant women and 100 pregnant women with gestational diabetes (28-32 weeks' gestation) and their newborns were selected to participate the study.


Recruitment information / eligibility

Status Completed
Enrollment 250
Est. completion date July 2016
Est. primary completion date June 2016
Accepts healthy volunteers No
Gender Female
Age group 22 Years to 35 Years
Eligibility Inclusion Criteria:

- 22-35 years,

- 28-32 weeks' gestation,

Exclusion Criteria:

- a known history of thyroid disease in the non-pregnant state and previous.

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
China Xinhua Hospital Shanghai Shanghai
China Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medcine Shanghai Shanghai

Sponsors (1)

Lead Sponsor Collaborator
qingya tang

Country where clinical trial is conducted

China, 

References & Publications (30)

Als C, Helbling A, Peter K, Haldimann M, Zimmerli B, Gerber H. Urinary iodine concentration follows a circadian rhythm: a study with 3023 spot urine samples in adults and children. J Clin Endocrinol Metab. 2000 Apr;85(4):1367-9. — View Citation

Alvarez-Pedrerol M, Guxens M, Mendez M, Canet Y, Martorell R, Espada M, Plana E, Rebagliato M, Sunyer J. Iodine levels and thyroid hormones in healthy pregnant women and birth weight of their offspring. Eur J Endocrinol. 2009 Mar;160(3):423-9. doi: 10.1530/EJE-08-0716. Epub 2008 Dec 29. — View Citation

Bath SC, Steer CD, Golding J, Emmett P, Rayman MP. Effect of inadequate iodine status in UK pregnant women on cognitive outcomes in their children: results from the Avon Longitudinal Study of Parents and Children (ALSPAC). Lancet. 2013 Jul 27;382(9889):331-7. doi: 10.1016/S0140-6736(13)60436-5. Epub 2013 May 22. — View Citation

Bath SC, Walter A, Taylor A, Wright J, Rayman MP. Iodine deficiency in pregnant women living in the South East of the UK: the influence of diet and nutritional supplements on iodine status. Br J Nutr. 2014 May;111(9):1622-31. doi: 10.1017/S0007114513004030. Epub 2014 Jan 7. — View Citation

Berbel P, Mestre JL, Santamaría A, Palazón I, Franco A, Graells M, González-Torga A, de Escobar GM. Delayed neurobehavioral development in children born to pregnant women with mild hypothyroxinemia during the first month of gestation: the importance of early iodine supplementation. Thyroid. 2009 May;19(5):511-9. doi: 10.1089/thy.2008.0341. — View Citation

Busnardo B, Nacamulli D, Zambonin L, Mian C, Piccolo M, Girelli ME. Restricted intraindividual urinary iodine concentration variability in nonfasting subjects. Eur J Clin Nutr. 2006 Mar;60(3):421-5. — View Citation

Caldwell KL, Makhmudov A, Ely E, Jones RL, Wang RY. Iodine status of the U.S. population, National Health and Nutrition Examination Survey, 2005–2006 and 2007–2008. Thyroid. 2011 Apr;21(4):419-27. doi: 10.1089/thy.2010.0077. — View Citation

Hynes KL, Otahal P, Hay I, Burgess JR. Mild iodine deficiency during pregnancy is associated with reduced educational outcomes in the offspring: 9-year follow-up of the gestational iodine cohort. J Clin Endocrinol Metab. 2013 May;98(5):1954-62. doi: 10.1210/jc.2012-4249. Epub 2013 Apr 30. — View Citation

Katz PM, Leung AM, Braverman LE, Pearce EN, Tomlinson G, He X, Vertes J, Okun N, Walfish PG, Feig DS. Iodine nutrition during pregnancy in Toronto, Canada. Endocr Pract. 2013 Mar-Apr;19(2):206-11. doi: 10.4158/EP12193.OR. — View Citation

Kevany J, Fierro-Benitez R, Pretell EA, Stanbury JB. Prophylaxis and treatment of endemic goiter with iodized oil in rural Ecuador and Peru. Am J Clin Nutr. 1969 Dec;22(12):1597-607. — View Citation

Knudsen N, Christiansen E, Brandt-Christensen M, Nygaard B, Perrild H. Age- and sex-adjusted iodine/creatinine ratio. A new standard in epidemiological surveys? Evaluation of three different estimates of iodine excretion based on casual urine samples and comparison to 24 h values. Eur J Clin Nutr. 2000 Apr;54(4):361-3. — View Citation

König F, Andersson M, Hotz K, Aeberli I, Zimmermann MB. Ten repeat collections for urinary iodine from spot samples or 24-hour samples are needed to reliably estimate individual iodine status in women. J Nutr. 2011 Nov;141(11):2049-54. doi: 10.3945/jn.111.144071. Epub 2011 Sep 14. — View Citation

Leung AM, Braverman LE. Consequences of excess iodine. Nat Rev Endocrinol. 2014 Mar;10(3):136-42. doi: 10.1038/nrendo.2013.251. Epub 2013 Dec 17. Review. — View Citation

Luo Y, Kawashima A, Ishido Y, Yoshihara A, Oda K, Hiroi N, Ito T, Ishii N, Suzuki K. Iodine excess as an environmental risk factor for autoimmune thyroid disease. Int J Mol Sci. 2014 Jul 21;15(7):12895-912. doi: 10.3390/ijms150712895. Review. — View Citation

Meng F, Zhao R, Liu P, Liu L, Liu S. Assessment of iodine status in children, adults, pregnant women and lactating women in iodine-replete areas of China. PLoS One. 2013 Nov 25;8(11):e81294. doi: 10.1371/journal.pone.0081294. eCollection 2013. — View Citation

Olivares JL, Olivi GI, Verdasco C, Ortiz VA, Mayer MA, Cresto JC. Low iodine intake during pregnancy: relationship to placental development and head circumference in newborn. Endocrinol Nutr. 2012 May;59(5):326-30. doi: 10.1016/j.endonu.2011.12.005. Epub 2012 Feb 29. — View Citation

Perrine CG, Herrick K, Serdula MK, Sullivan KM. Some subgroups of reproductive age women in the United States may be at risk for iodine deficiency. J Nutr. 2010 Aug;140(8):1489-94. doi: 10.3945/jn.109.120147. Epub 2010 Jun 16. — View Citation

Pharoah PO, Connolly KJ. A controlled trial of iodinated oil for the prevention of endemic cretinism: a long-term follow-up. Int J Epidemiol. 1987 Mar;16(1):68-73. — View Citation

Pretell EA, Torres T, Zenteno V, Cornejo M. Prophylaxis of endemic goiter with iodized oil in rural Peru. Adv Exp Med Biol. 1972;30:246-65. — View Citation

Rebagliato M, Murcia M, Alvarez-Pedrerol M, Espada M, Fernández-Somoano A, Lertxundi N, Navarrete-Muñoz EM, Forns J, Aranbarri A, Llop S, Julvez J, Tardón A, Ballester F. Iodine supplementation during pregnancy and infant neuropsychological development. INMA Mother and Child Cohort Study. Am J Epidemiol. 2013 May 1;177(9):944-53. doi: 10.1093/aje/kws333. Epub 2013 Apr 1. — View Citation

Rydbeck F, Rahman A, Grandér M, Ekström EC, Vahter M, Kippler M. Maternal urinary iodine concentration up to 1.0 mg/L is positively associated with birth weight, length, and head circumference of male offspring. J Nutr. 2014 Sep;144(9):1438-44. doi: 10.3945/jn.114.193029. Epub 2014 Jul 16. — View Citation

Sullivan KM, Perrine CG, Pearce EN, Caldwell KL. Monitoring the iodine status of pregnant women in the United States. Thyroid. 2013 Apr;23(4):520-1. doi: 10.1089/thy.2012.0217. — View Citation

Travers CA, Guttikonda K, Norton CA, Lewis PR, Mollart LJ, Wiley V, Wilcken B, Eastman CJ, Boyages SC. Iodine status in pregnant women and their newborns: are our babies at risk of iodine deficiency? Med J Aust. 2006 Jun 19;184(12):617-20. — View Citation

van den Briel T, West CE, Hautvast JG, Vulsma T, de Vijlder JJ, Ategbo EA. Serum thyroglobulin and urinary iodine concentration are the most appropriate indicators of iodine status and thyroid function under conditions of increasing iodine supply in schoolchildren in Benin. J Nutr. 2001 Oct;131(10):2701-6. — View Citation

Vejbjerg P, Knudsen N, Perrild H, Laurberg P, Carlé A, Pedersen IB, Rasmussen LB, Ovesen L, Jørgensen T. Thyroglobulin as a marker of iodine nutrition status in the general population. Eur J Endocrinol. 2009 Sep;161(3):475-81. doi: 10.1530/EJE-09-0262. Epub 2009 Jun 25. — View Citation

Velasco I, Carreira M, Santiago P, Muela JA, García-Fuentes E, Sánchez-Muñoz B, Garriga MJ, González-Fernández MC, Rodríguez A, Caballero FF, Machado A, González-Romero S, Anarte MT, Soriguer F. Effect of iodine prophylaxis during pregnancy on neurocognitive development of children during the first two years of life. J Clin Endocrinol Metab. 2009 Sep;94(9):3234-41. doi: 10.1210/jc.2008-2652. Epub 2009 Jun 30. — View Citation

WHO Secretariat, Andersson M, de Benoist B, Delange F, Zupan J. Prevention and control of iodine deficiency in pregnant and lactating women and in children less than 2-years-old: conclusions and recommendations of the Technical Consultation. Public Health Nutr. 2007 Dec;10(12A):1606-11. doi: 10.1017/S1368980007361004. Erratum in: Public Health Nutr. 2008 Mar;11(3):327. — View Citation

Zhou SJ, Anderson AJ, Gibson RA, Makrides M. Effect of iodine supplementation in pregnancy on child development and other clinical outcomes: a systematic review of randomized controlled trials. Am J Clin Nutr. 2013 Nov;98(5):1241-54. doi: 10.3945/ajcn.113.065854. Epub 2013 Sep 11. Review. — View Citation

Zimmermann MB. Iodine deficiency. Endocr Rev. 2009 Jun;30(4):376-408. doi: 10.1210/er.2009-0011. Epub 2009 May 21. Review. — View Citation

Zou S, Wu F, Guo C, Song J, Huang C, Zhu Z, Yu H, Guo Y, Lu X, Ruan Y. Iodine nutrition and the prevalence of thyroid disease after salt iodization: a cross-sectional survey in Shanghai, a coastal area in China. PLoS One. 2012;7(7):e40718. doi: 10.1371/journal.pone.0040718. Epub 2012 Jul 27. — View Citation

* Note: There are 30 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary urinary iodine (UI) concentrations up to three months
Secondary thyroid stimulating hormone level of newborns up to three months
Secondary daily iodine intake of pregnant women Daily iodine intake was estimated using the total diet study approach up to three months
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