Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT04448574 |
Other study ID # |
CWD2019 |
Secondary ID |
|
Status |
Completed |
Phase |
|
First received |
|
Last updated |
|
Start date |
September 1, 2019 |
Est. completion date |
June 1, 2020 |
Study information
Verified date |
December 2021 |
Source |
Universitätsklinikum Hamburg-Eppendorf |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Observational
|
Clinical Trial Summary
Pectus excavatum (PE) or funnel breast is the most common congenital deformity of the chest
wall, which occurs in about 1 in 400 births with a boy to girl ratio of 4: 1 to 3: 1. The
etiology of PE is largely undefined, but there are numerous indications that genetic factors
play a role in the development of PE. Up to 40% of patients report affected family members
with similar congenital deformities. In many families, PE follows a pattern that would be
compatible with an autosomal dominant or recessive pattern of inheritance. The data on the
frequent occurrence of PE in family members fluctuate greatly and only a few genes associated
with a PE have been identified so far.
Description:
Previous studies suggest that sulfation of proteoglycans plays a crucial role in the normal
development of cartilage and bone and could therefore be crucial in the genesis of the
disease. The main catalytic machinery responsible for the biosynthesis and breakage of
sulfate esters in the proteoglycans consists of various enzymes and transporters. Mutations
in Sphingosine Kinase 1 (SK1) and Sphingosine Kinase 2 (SK2) genes that encode the
transmembrane transporters of sulfate or enzymes that are involved in 3'-phosphoadenosine
5'-phosphosulfate (PAPS) synthesis have been identified as the cause of several inherited
diseases that all have skeletal system deformities.
Connections between chest wall deformities with syndromes (e.g. Marfan, Noonan), anomalies
(e.g. Poland, Moebius) or associations (e.g. Cantrell Pentalogy, PHACE) are well known. In
contrast, there have so far been hardly any genetic studies of the isolated congenital chest
wall deformities. Epidemiological data are insufficient and only a few groups deal with the
inheritance and the incidence of this disease when it occurs in isolation.