Written based on 9 research studies on PubMed, searched on 11 Nov 2026.
The claim
Posts online say that CBD (cannabidiol) helps with childhood cancers.
Where research stands
We found 9 published papers on CBD (cannabidiol) and childhood cancers. They were published between 2016 and 2026. None of them is a study in people. 4 were studies in animals, and 1 was only in cells in the lab. 1 paper is a review that sums up other studies. 1 new study in people is running or will start soon, say the trial registers.
- 0In people
- 4In animals
- 1Only in the lab
What the studies found
We have not summed up these studies in words yet. The most important papers are listed under Sources.
Verdict
CBD (cannabidiol) has been studied for childhood cancers in animals, not yet in people.
Unproven means: it was only tested in animals or cells, or there is too little or mixed data from people. How we rate claims
What this means for you: Results in animals or in cells often do not hold in people. Do not stop or change your medicines because of it. Ask your doctor before you start taking it.
Sources
- Concomitant Treatment of Malignant Brain Tumours With CBD - A Case Series and Review of the Literature.2019 · Anticancer Res · Review
- Acute anti-proliferative and anti-migratory effects of cannabidiol on C6 rat glioma, SH-SY5Y human neuroblastoma, and HT22 mouse hippocampal neuronal cell cultures.2026 · Front Toxicol · In animals
- Isobolographic interactions of cannabidiol and AM 1172 with cisplatin in human neuroblastoma and glioblastoma cell lines: An in vitro study.2025 · Chem Biol Interact · In animals
- Assessment of Cannabidiol and Δ9-Tetrahydrocannabiol in Mouse Models of Medulloblastoma and Ependymoma.2021 · Cancers (Basel) · In animals
- In vitro and in vivo efficacy of non-psychoactive cannabidiol in neuroblastoma.2016 · Curr Oncol · In animals
- Role of miRNA in the regulation of cannabidiol-mediated apoptosis in neuroblastoma cells.2019 · Oncotarget · In the lab
- Ferroptosis under fire: cannabidiol mitigates iron-dependent injury in differentiated human neuroblastoma cells following oxygen-glucose deprivation.2026 · Phytomedicine · Other paper
- Characterization of the Antitumor Potential of Extracts of Cannabis sativa Strains with High CBD Content in Human Neuroblastoma.2023 · Int J Mol Sci · Other paper
- The use of cannabidiol for seizure management in patients with brain tumor-related epilepsy.2017 · Neurocase · Other paper
