CBD transfer into breast milk

Study of the Passage of (CBD) Into Breast Milk and Its Biological Impact on Breast-fed Children

NA · Centre Hospitalier Régional d'Orléans · NCT06589258

This project will test whether CBD used by breastfeeding mothers gets into their blood, breast milk, and their babies' urine.

Quick facts

PhaseNA
Study typeInterventional
Enrollment60 (estimated)
Ages18 Years and up
SexFemale
SponsorCentre Hospitalier Régional d'Orléans (other)
Locations1 site (Orléans)
Trial IDNCT06589258 on ClinicalTrials.gov

What this trial studies

Researchers at CHU Orléans will enroll breastfeeding women who currently use CBD and collect timed maternal blood and breast milk samples at different moments of lactation to measure CBD concentrations. Infant urine samples will also be collected to look for evidence of exposure. The protocol focuses on pharmacokinetic measurement of maternal and lactational CBD uptake rather than clinical outcomes and is run as a single-center interventional pharmacokinetic study. The aim is to quantify how much and when CBD transfers from mother to infant to inform safety guidance.

Who should consider this trial

Good fit: Breastfeeding women over 18 who currently use CBD, can give informed consent, speak French, and are registered with French social security.

Not a fit: Women who do not use CBD, cannot provide informed consent, do not understand French, are under legal guardianship, or lack French social security are excluded and unlikely to benefit from participation.

Why it matters

Potential benefit: If successful, the results could clarify how much CBD reaches breast-fed infants and help guide safer breastfeeding recommendations.

How similar studies have performed: Very few human data exist on CBD passage into breast milk, so this work is largely novel with limited prior evidence of similar results.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Women over 18
* Breastfeeding CBD user
* Having given written informed consent

Exclusion Criteria:

* Women who do not understand French well
* Women with a psychiatric or dual pathology that prevents proper participation in the study,
* Women under protective supervision (guardianship/curatorship),
* Women under court protection,
* Women not affiliated to a social security scheme

Where this trial is running

Orléans

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Breast Feeding, cannabidiol, Breast milk, Breast-feeding, Breast-feed children, PK POP

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.