Contamination of Young Children Hair During Acute Cannabis Intoxication

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Conditions studied: Cannabis Intoxication in Children

In brief

Hair analysis in pediatric cannabis intoxication is limited by possible sudoral self-contamination, especially in young children due to hair porosity. However, adult studies show no THC-COOH in sweat, challenging this hypothesis. THC-COOH presence in sweat has to this day never been studied in young children. Its absence would help assess the reliability of hair testing for prior exposure. Thus, our main objective is to describe whether THC-COOH can be detected in sweat following cannabis intoxication using gold standard techniques.

Key facts

Study ID

NCT07524088

Run by

University Hospital, Toulouse

People needed

15

Starts

2026-04-15

Expected to finish

2028-04-15

Last updated by the study team

2026-04-13

Who can join

Age: 0 and older, up to 3. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Child admitted to the Specialized Emergency Pole (POSU) and pediatric medico-surgical emergencies for acute cannabis intoxication.
• Child older than 3 months and younger than 3 years.
• Holders of parental authority, affiliated with or beneficiaries of a social security system.

You may not qualify if…

• History of cannabis intoxication identified during the interview and/or consultation of the medical record.
• Contraindication to sweat sampling (described in section 6).
• Absence of hair and/or hair length < 1 cm at the time of inclusion.
• Ongoing breastfeeding (exclusive and mixed).
• Inability to provide study-related informations to the holders of parental authority.

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