NCT05813730

Urinary Creatinine Excretion Time in the Neonatal Period

Definition of Urinary Creatinine Excretion Time in the Neonatal Period, in Full Term Newborns : a Prospective Monocentric Study

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 40 (estimated)
• Sponsor: Central Hospital, Nancy, France · Academic / Other
• Sex: All
• Age: 3 Days
• Healthy volunteers: Accepted

Summary

Newborn's renal function is difficult to assess and its physiology during the first days of life is still incompletely known. Studies suggest that the newborn almost completely reabsorbs creatinine during the first 48 to 72 hours of life, while at the same time it continues to produce its own creatinine. Therefore, the initial stock of creatinine at birth still increases through this production and the non or weak clearance. A better knowledge of renal physiopathology in newborns would allow to improve the therapeutic management of the infants, particularly in case of potential nephrotoxicity. No study has attempted to assess the increase in urinary creatinine excretion in neonates from a given time. Objectives: To show when urinary creatinine excretion in newborns is efficient. Results: this study mightr show an inflection point in urinary creatinine excretion illustrating the postnatal age when renal function becomes efficient.

Conditions

• Renal Function

Interventions

Type	Name	Description
OTHER	urinary creatinine excretion measurement	Urine samples will be collected up to 6 times a day from birth until discharge from the maternity hospital, to analyze the kinetics of creatinuria.

Timeline

• Start date: 2024-10-30
• Primary completion: 2025-11-01
• Completion: 2025-12-01
• First posted: 2023-04-14
• Last updated: 2025-02-19

Locations

1 site across 1 country: France