Iodine Status in Pregnant Women and Their Newborns: is Co... | NCT00505479

Studies
Iodine Status in Pregnant Women and Their Newborns: is Congenital Hypothyroidism Related to Iodine Deficiency in Pregnancy?

NCT00505479

Sponsor

Zhejiang University

Status

Unknown status

Last Update Posted

Jul 23, 2007Estimated

Enrollment

Not provided

Phase

Not provided

Conditions

Congenital Hypothyroidism
Pregnancy
Iodine Deficiency

Interventions

Not provided

Countries

China

Protocol Section

Identification Module Status Module Sponsor/Collaborators Module Oversight Module Description Module Conditions Module Design Module Arms/Interventions Module Outcomes Module Eligibility Module Contacts/Locations Module References Module IPD Sharing Statement Module

Results Section

Participant Flow Module Baseline Characteristics Module Outcome Measures Module Adverse Events Module More Info Module

Annotation Section

Annotation Module

Document Section

Large Document Module

Derived Section

Miscellaneous Info Module Condition Browse Module Intervention Browse Module

Protocol Section

Identification Module

NCT ID

Results Section

No data available

No data is available for this block.

Annotation Section

No data available

No data is available for this block.

Document Section

No data available

No data is available for this block.

Derived Section

Miscellaneous Info Module

Version Holder

Status Module

Record Verification Date

Jul 2007

Overall Recruitment Status or Expanded Access Status

Unknown status

Last Known Status

Recruiting

Delayed Posting

Not provided

Why Stopped

Not provided

Expanded Access Info

Start Date

May 2007

Primary Completion Date

Not provided

Completion Date

May 2010Estimated

First Submitted Date

Jul 20, 2007

First Submission Date that Met QC Criteria

Jul 20, 2007

First Posted Date

Jul 23, 2007Estimated

Results Waived

Not provided

Results First Submitted Date

Not provided

Results First Submitted that Met QC Criteria

Not provided

Results First Posted Date

Not provided

Certification/Extension (aka Delayed Results) First Submitted Date

Not provided

Certification/Extension First Submitted that Passed QC Review

Not provided

Certification/Extension First Posted Date

Not provided

Last Update Submitted Date

Jul 20, 2007

Last Update Posted Date

Jul 23, 2007Estimated

Oversight Module

Has Data Monitoring Committee (DMC)

Yes

Is FDA Regulated Drug

Not provided

Is FDA Regulated Device

Not provided

Is Unapproved Device

Not provided

Pediatric Postmarket Surveillance of a Device Product

Not provided

Product Exported from US

Not provided

FDAAA801 Violation

Not provided

Description Module

Brief Summary

Iodine is an essential component of thyroid hormone, which is necessary for many metabolic processes as well as the maturation of the CNS. Deficiencies of iodine have deleterious effects on both pregnant women and infants. The iodine status of the population after implementation of the universal salt iodization program in Zhejiang province has not been known. This study was to determine whether pregnant women show evidence of iodine deficiency, and to examine the correlation between maternal urine iodine concentration and newborn thyroid function.

Detailed Description

Healthy women at 12 weeks' gestation and over from four different areas in Zhejiang province were enrolled to participate this program from May 2007 to May 2010. Women consented to provide urine samples and salt samples during pregnancy (12, 16, 24 weeks' gestation and before delivery), and give permission to access their newborn's TSH value. Urinary iodine concentration (UIC) was determined by ammonium persulfate digestion microplate method, and TSH was determined by a time resolved fluoro-immunoassay (TRFIA). The diagnostic standard for congenital hypothyroidism was: TSH ≥ 20 mU/L and declined FT4 levels. Compare the correlation to effects with different level of iodine content in salt, maternal UIC and neonatal TSH. Investigate the optimal level of iodine content in salt in different areas in ZheJiang province.

Design Module

Study Type

Observational

Number of References to an Expanded Access Study

Not provided

Expanded Access Types

Not provided

Patient Registry

Not provided

Target Follow-Up Duration

Not provided

Phases

Not provided

Interventional Study Design

Allocation

Not provided

Intervention Model

Biospecimen

No data available

No data is available for this block.

Enrollment

Not provided

Eligibility Module

Eligibility Criteria

Inclusion Criteria:

Pregnant women in Zhejiang province (and their newborns)

Exclusion Criteria:

Endocrine disease

Accepts Healthy Volunteers

Yes

Sex

Female

Sex/Gender Based

Not provided

Sex/Gender Description

Not provided

Minimum Age

20 Years

Maximum Age

40 Years

Standard Ages

Adult

Study Population

Not provided

Sampling Method

Not provided

Contacts/Locations Module

Central Contacts

Name	Role	Phone	Extension	Email
Zhengyan Zhao, M.D.	Contact	008657187061007		zhaozy@zju.edu.cn

Overall Officials

Name	Affiliation	Role
zhengyan Zhao, M.D.	The Children's Hospital of Zhejiang University School of Medicine	Study Director

Locations

Facility	Status	City	State	ZIP	Country	Contacts
Children's Hospital Zhejiang University School of Medicine	Recruiting	Hangzhou	Zhejiang	310003	China

Condition Browse Module

MeSH Terms

ID	Term
D003409	Congenital Hypothyroidism

Ancestor Terms

ID	Term
D004392	Dwarfism
D001848	Bone Diseases, Developmental
D001847	Bone Diseases
D009140	Musculoskeletal Diseases

Browse Leaves

Not provided

Browse Branches

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