Clinical trial Recruiting at 1 site Interventional Ages 18 and up Women only

CBD transfer into breast milk

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

Run by Centre Hospitalier Régional d'Orléans · NCT06589258 · Data updated 2026-11-12

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

Quick facts

Study typeInterventional
Ages18 Years and up
SexWomen only
Enrollment60 (estimated)
SponsorCentre Hospitalier Régional d'Orléans
Academic / other
Locations1 site (Orléans)
StatusRecruiting
StartedOctober 6, 2025
Main results expectedOctober 2027
Study endsOctober 2028
Registry record updatedJanuary 30, 2026
Trial IDNCT06589258 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

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

Probably 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.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

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.

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

Who can join: the full rules

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 it's running

  • CHU Orléans
    Orléans, France
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.