NCT02586220

Brief 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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
250

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Aug 2015

Shorter than P25 for all trials

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2015

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

September 23, 2015

Completed
1 month until next milestone

First Posted

Study publicly available on registry

October 26, 2015

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2016

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2016

Completed
Last Updated

March 25, 2020

Status Verified

March 1, 2020

Enrollment Period

10 months

First QC Date

September 23, 2015

Last Update Submit

March 24, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • urinary iodine (UI) concentrations

    up to three months

Secondary Outcomes (2)

  • thyroid stimulating hormone level of newborns

    up to three months

  • daily iodine intake of pregnant women

    up to three months

Study Arms (2)

normal pregnant women

150 normal pregnant women (28-32 weeks' gestation)

pregnant women with gestational

100 pregnant women with gestational diabetes (28-32 weeks' gestation)

Eligibility Criteria

Age22 Years - 35 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)
Sampling MethodProbability Sample
Study Population

250 pregnant women recruited from antenatal outpatient clinics in Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, China.

You may qualify if:

  • years,
  • weeks' gestation,

You may not qualify if:

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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medcine

Shanghai, Shanghai Municipality, 200092, China

Location

Xinhua Hospital

Shanghai, Shanghai Municipality, 200092, China

Location

Related Publications (30)

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    PMID: 25050783BACKGROUND
  • Konig 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.

    PMID: 21918061BACKGROUND
  • 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. doi: 10.1210/jcem.85.4.6496.

    PMID: 10770167BACKGROUND
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    PMID: 16391581BACKGROUND
  • 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. doi: 10.1038/sj.ejcn.1600935.

    PMID: 10745289BACKGROUND
  • Zimmermann MB. Iodine deficiency. Endocr Rev. 2009 Jun;30(4):376-408. doi: 10.1210/er.2009-0011. Epub 2009 May 21.

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  • Vejbjerg P, Knudsen N, Perrild H, Laurberg P, Carle A, Pedersen IB, Rasmussen LB, Ovesen L, Jorgensen 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.

    PMID: 19556382BACKGROUND
  • 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. doi: 10.1093/jn/131.10.2701.

    PMID: 11584093BACKGROUND
  • 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. doi: 10.5694/j.1326-5377.2006.tb00417.x.

    PMID: 16803441BACKGROUND
  • 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.

    PMID: 24342882BACKGROUND
  • 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.

    PMID: 23186967BACKGROUND
  • 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. No abstract available.

    PMID: 18053287BACKGROUND
  • 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.

    PMID: 21323596BACKGROUND
  • 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.

    PMID: 20554903BACKGROUND
  • 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. No abstract available.

    PMID: 23157653BACKGROUND
  • 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.

    PMID: 24398008BACKGROUND
  • 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.

    PMID: 22911705BACKGROUND
  • 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.

    PMID: 24282581BACKGROUND
  • 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.

    PMID: 19114540BACKGROUND
  • Rydbeck F, Rahman A, Grander M, Ekstrom 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.

    PMID: 25031330BACKGROUND
  • 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.

    PMID: 22381147BACKGROUND
  • 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.

    PMID: 24025628BACKGROUND
  • Rebagliato M, Murcia M, Alvarez-Pedrerol M, Espada M, Fernandez-Somoano A, Lertxundi N, Navarrete-Munoz EM, Forns J, Aranbarri A, Llop S, Julvez J, Tardon 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.

    PMID: 23548753BACKGROUND
  • 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. doi: 10.1093/ajcn/22.12.1597.

    PMID: 4312017BACKGROUND
  • 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. No abstract available.

    PMID: 4350937BACKGROUND
  • 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. doi: 10.1093/ije/16.1.68.

    PMID: 3032814BACKGROUND
  • Velasco I, Carreira M, Santiago P, Muela JA, Garcia-Fuentes E, Sanchez-Munoz B, Garriga MJ, Gonzalez-Fernandez MC, Rodriguez A, Caballero FF, Machado A, Gonzalez-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.

    PMID: 19567536BACKGROUND
  • Berbel P, Mestre JL, Santamaria A, Palazon I, Franco A, Graells M, Gonzalez-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.

    PMID: 19348584BACKGROUND
  • 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.

    PMID: 23633204BACKGROUND
  • 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.

    PMID: 23706508BACKGROUND

Biospecimen

Retention: SAMPLES WITHOUT DNA

spot urine sample of pregnant women

Study Officials

  • Qingya Tang, MMed

    Xinhua Hospital, Shanghai Jiao Tong University School of Medicine

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Chief Physician

Study Record Dates

First Submitted

September 23, 2015

First Posted

October 26, 2015

Study Start

August 1, 2015

Primary Completion

June 1, 2016

Study Completion

July 1, 2016

Last Updated

March 25, 2020

Record last verified: 2020-03

Data Sharing

IPD Sharing
Will not share

Locations