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Not yet recruitingNCT06051279Updated Sep 28, 2023

Pattern of Congenital Hypothyroidism in Newborns.

An observational study in Pattern of CH, sponsored by Assiut University. Not yet recruiting. Open to participants aged 15 Days to 2 Months. Per ClinicalTrials.gov, last updated 2023-09-28.

Sponsored by Assiut University · Observational

From the registry’s dates

  • Primary completion was expected by Jun 2025, 1 year 4 months ago, but the record still lists the study as not yet recruiting.
Study type
Observational
Model
Case-control
Time perspective
Retrospective
Enrollment
300
Ages
15 Days to 2 Months
Sex
All
01

Study summary

  1. Study the pattern of congenital hypothyroidism in newborns after positive newborn screening results.
  2. Assess the characteristics of the cases (permanent congenital hypothyroidism and transient neonatal hyperthyrotopinemia).
Read the detailed description

Thyroid hormone is essential for normal somatic growth and neurological development in infants and children. Deficiency of thyroid hormone in the first 2 years of life results in congenital hypothyroidism (CH). CH manifests by mental retardation and growth retardation in newborn.

Newborn screening (NS) for CH aims to early diagnosis and treatment of hypothyroidism. CH occurs about one in 3000-4000 infants . CH is suspected in neonatal screening when capillary thyroid-stimulating hormone (TSH) concentrations are elevated (>15 mU/L in Germany). The diagnosis is confirmed by measuring venous TSH and free thyroxine levels (FT4) concentrations before the start of treatment.

CH can be classified into permanent or transient congenital hypothyroidism (TCH). While CH is a persistent deficiency of thyroid hormones that requires lifelong treatment, TCH is a temporary deficiency that reverts to normal concentrations with proper medical management, usually during the first few months of life and not after the age of 3 years.

Transient neonatal hyperthyrotropinemia (TNH) is defined as temporary postnatal elevation of TSH levels (10 mIU/L-20 mIU/L) with normal FT4 levels but TSH returning to normal (\<10 mIU/L) when measured at 14 d of life. It is important to recognize TNH as these newborns have a higher risk of developing permanent hypothyroidism with repercussion on developmental status. Thus, we aimed at evaluating the neonatal and maternal factors associated with TNH . So that, identifying these factors may be considered as an appropriate strategy to prevent these possible disorders. There is a gap in studying the prevalence and the predictors of transient neonatal hyperthyrotropinemia particularly in Assiut Governorate.

02

Conditions studied

03

In context

Congenital Hypothyroidism

25 studies on the registry are indexed under Congenital Hypothyroidism; 9 are open to participants now.

This study's planned enrollment of 300 is close to the median of 300 across 13 observational studies indexed under Congenital Hypothyroidism.

Browse Congenital Hypothyroidism studies →

Lead sponsor

Assiut University is the lead sponsor of 4,901 studies on the registry; 2,098 are open to participants now.

Of its 13 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
15 Days to 2 Months
Sexes eligible
All
Sampling method
Non-probability sample

Study population

Cases: Newborn with TSH (the confirmed raised TSH cases after thyroid hormone screening) within one month after birth, both transient neonatal hyperthyrotropinemia cases and permanent congenital hypothyroidism included in the study.

Inclusion criteria

  • For the case series study: all positive newborns cases with raised TSH level (the confirmed raised TSH cases after thyroid hormone screening) within one month after birth will be taken during one year.
  • For the secondary outcome to study the predictors of permanent congenital hypothyroidism and transient neonatal hyperthyrotropinemia, control group with matched age and gender with normal TSH at birth according to the neonatal TSH screening will be taken. Matched normal neonates will be selected to be compared with permanent congenital hypothyroidism cases and transient neonatal hyperthrotropinemia cases.

Exclusion criteria

Exclusion Criteria:

  • Cases that refused to participate in research.
  • Cases that missed for follow up.
05

Study design

Observational model
Case-control
Time perspective
Retrospective
Enrollment
300 participants (estimated)
Patient registry
No

Groups and cohorts

  • Cases with TNH

    Newborns with raised TSH level and normal FT4 (the confirmed raised TSH cases after thyroid hormone screening) that return normal without intervention within one month after birth.

  • Cases with permanent congenital hypothyroidism

    Newborns with raised TSH level and low FT4 (confirmed cases after thyroid hormone screening)

  • Control group

    Control group with matched age and gender with normal TSH at birth according to the neonatal TSH screening. Matched normal neonates will be selected to be compared with transient neonatal hyperthrotropinemia cases and permanent congenital hypothyroidism cases for studying of the predictors of transient neonatal hyperthyrotopinemia.

06

What researchers measure

Primary outcomes

  1. Pattern of congenital hypothyroidism in newborns after positive newborn screening results.

    The data will be collected from the records of laboratory investigation to assess the pattern of congenital hypothyroidism

    Time frame: through study completion, an average of 1 year

Secondary outcomes

  1. Predictors of permanent congenital hypothyroidism and transient neonatal hyperthyrotropinemia as neonatal, obstateric and maternal factors.

    Determine if studied neonates on breastfeeding or not and have sufficient feeding signs or not by asking the child caregiver

    Time frame: through study completion, an average of 1 year

  2. Characteristics of studied newborns in all types of congenital hypothyroidism in Sidi-Galal clinic as in feeding, nutritional status and growth parameters.

    Determine if studied neonates on breastfeeding or not and have sufficient feeding signs or not by asking the child caregiver

    Time frame: through study completion, an average of 1 year

07

Study locations

No study locations are listed for this record.

08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 28, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06051279
Lead sponsor
Assiut University
Responsible party
Fatma El Zahra Fathy Mohamed Abdelhady (resident physician at family medicine department, Assiut University) — Principal investigator
First posted
Sep 22, 2023
Start date
Jun 2024 (estimated)
Primary completion
Jun 2025 (estimated)
Completion
Aug 2025 (estimated)
Last update
Sep 28, 2023

Study contacts

Fatma El Zahra Fathy
Contact
fatma.fathy.mohamed2441997@gmail.com
01005256223

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Sep 2023. You cannot join it, but the record below documents what was studied.

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