Congenital Hypothyroidism in Children With Eutopic Gland or Thyroid Hemiagenesis: Predictive Factors for Transient vs Permanent Hypothyroidism.

Central Hospital, Nancy, France

Status: Unknown

Conditions: Congenital Hypothyroidism

Study type: Observational

Funder types: Other

Identifiers

NCT04712760

2020PI260

Details and patient eligibility

About

In France, the incidence of congenital hypothyroidism has increased significantly since the newborn screening program was introduced in 1978. The largest increase is seen in children with eutopic thyroid gland. More than one-third of children with eutopic gland have transient hypothyroidism. Clinical practice guidelines recommend to re-evaluate thyroid function in children with eutopic gland around the age of 3 years to determine whether hypothyroidism is transient or permanent. Up until today it is still difficult to determine early on whether hypothyroidism is transient or permanent in children with eutopic gland. Our aim is to identify one or more predictive factors for transient congenital hypothyroidism in children with eutopic gland or thyroid hemiagenesis.

Enrollment: 60 estimated patients

Sex: All

Ages: Under 42 months old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Children with congenital hypothyroidism
• Eutopic thyroid gland or thyroid hemiagenesis
• Born between 1996 and 2017
• Treated at the Nancy Regional and University Hospital
• Follow-up of at least 3,5 years.

Exclusion criteria

• Polymalformative syndrome
• Thyroid dysgenesis except for thyroid hemiagenesis

Trial design

60 participants in 2 patient groups

Transient congenital hypothyroidism

Description:

- children with congenital hypothyroidism who are no longer treated with Levothyroxine at an age of 3 years and 6 months

Permanent congenital hypothyroidism

Description:

- children with congenital hypothyroidism who are still treated with Levothyroxine at an age of 3 years and 6 months