University hospital of Montpellier
Montpellier, 34295, France
Location status: Recruiting
Location contact
nicolas KALFA, MD
CONTACT
nicolas kalfa, MD
PRINCIPAL_INVESTIGATOR
NCT Number: NCT04342026
Cryptorchidism is the most frequent congenital defect of the male newborn. It requires surgery in childhood, increases the risk of fertility disorders and cancer. As a major public health objective, it's the subject of numerous recommendations. Its frequency is increasing in some countries faster than a single genetic cause could not explain it. It may occurs in a geographic cluster. The cause of cryptorchidism involves genetic, hormonal and environmental factors. Animal studies suggest that endocrine disruptors interfere with fetal testicular migration. The aim of the study is to find out if some environmental exposition may be associated with cryptorchidism.
Interested in participating?
Request Info1 month–18 year
Male
Observational
Montpellier, 34295, France
Location status: Recruiting
nicolas KALFA, MD
CONTACT
nicolas kalfa, MD
PRINCIPAL_INVESTIGATOR
Cryptorchidism is the most frequent congenital defect of the male newborn. It requires surgery in childhood, increases the risk of fertility disorders and cancer. As a major public health objective, it's the subject of numerous recommendations. Its frequency is increasing in some countries faster than a single genetic cause could not explain it. It may occurs in a geographic cluster. The cause of cryptorchidism involves genetic, hormonal and environmental factors. Animal studies suggest that endocrine disruptors interfere with fetal testicular migration. The aim of the study is to find out if some environmental exposition may be associated with cryptorchidism.
Healthy volunteers accepted: No
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Exclusion criteria
Measure of the exposure of parent of patient with/without cryptorchidism to endocrine disruptors (job exposure, during pregnancy)
Time frame: 1 day
Measure of the frequency of endocrine disruptors assessed by european questionary QLK4-1999-01422 (simplified version )
Time frame: 1 day
Assessement by the Job-exposure matrix EDC (Environment disrupting chemicals)
Time frame: 1 day
presence of cryptorchidism at birth or secondarily
Time frame: 1 day
parents will be asked about their diet
Time frame: 1 day
The aim is only to make a collection of blood samples. Anonymous samples will be used later in order to improve knowledge of the cryptorchidism.
Contact information is provided by the study sponsor or research team.
University Hospital, Montpellier
Other
Acronym: CRYPTENV
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