CBD under the microscope: can it slow breast cancer growth?
NCT ID NCT06148038
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This early-stage trial is testing whether cannabidiol (CBD), a compound from cannabis, can affect breast cancer cell growth. Up to 84 women with invasive breast cancer will take either a low or high dose of CBD or a placebo for 5 to 56 days before their surgery. Researchers will then examine the removed tumors to see if CBD caused any changes in cell growth or death. The goal is to gather information, not to treat the cancer.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
cannabidiol (CBD) oral
What this could lead to
If it works, this could point toward CBD as a potential addition to breast cancer treatment.
What could go wrong
This is a very early phase 1 trial with only 84 people. It is designed to see if CBD affects tumor cells, not to prove it treats cancer. Results may not lead to a new treatment.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Medical University of South Carolina
RECRUITINGCharleston, South Carolina, 29425, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••