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Perspectives on the Use of Medicinal Marijuana in Children :

December 13, 2017

Their study is extremely timely: though accessibility and public interest in MM has grown significantly in the past decade, MM use has not been accepted within the mainstream pediatric community. Until now, no study has explained why this may be the case.

A recent study published in this month’s Pediatrics by Ananth et al. provides novel insights on provider beliefs, knowledge and attitudes regarding the use of medical marijuana (MM) in children with cancer (10.1542/peds.2017-0559). Their study is extremely timely: though accessibility and public interest in MM has grown significantly in the past decade, MM use has not been accepted within the mainstream pediatric community. Until now, no study has explained why this may be the case.

The decision to use MM is understandably a difficult one, though a growing body of literature suggests numerous potential benefits (Grant et al Open Neurol J.2012,Lueng JABFM 2011). Cannabinoids (the non-psychoactive chemical ingredient in cannabis) have been shown to combat nausea, anorexia and neuropathic pain in adults (Abrams et al Current Oncol. 2016, Ellis et al Neuropsychopharm. 2008).  Though no formal studies have been conducted in children, dronabinol – a synthetic cannabinoid – is frequently used in pediatric oncology and is an effective treatment for chemotherapy induced nausea and vomiting (Elder et al J Pediatr Pharmacol Ther 2015). Recently, MM has been shown to significantly decrease seizures in children with Dravet Syndrome (Devinisky NEJM 2017). New evidence also suggests that marijuana itself might be a viable treatment for pediatric blood cancers by inducing apoptosis in leukemic cells and decreasing tumor burden (Poweles Blood 2004, McKallip Molec Pharm. 2006).  Thus, it is hardly surprising that childhood cancer patients and their families frequently inquire about MM (Ananth et al Pediatrics 2017). Perhaps for these reasons, the vast majority of pediatric providers surveyed in the study by Ananth et al, indicated that they would help pediatric oncology patients obtain access to MM and favor further research on the topic.

However, MM is not without its consequences. Short term effects of marijuana include decreased concentration, impaired motor control, delayed reaction time and altered judgement -- all of which are inherently problematic in childhood and adolescence (Schweinsburg et al Psychiatry Res. 2008). Many questions still exist surrounding the long term effects of marijuana on the developing prefrontal cortex, but evidence suggests that there are higher rates of psychosis in young patients predisposed to develop schizophrenia who smoke marijuana (Moore et al Lancet 2007).

For these reasons, the American Academy of Pediatrics (AAP) currently opposes the use of marijuana in patients up to 21 years of age. Yet, the AAP also strongly supports research on cannabinoids and acknowledges that MM may be an option for “children with life-limiting or severely debilitating conditions and for whom current therapies are inadequate” (Ammerman et al Pediatrics 2015).

There are currently 29 states in which MM is legal. The likelihood that children with chronic illness and their families will seek out MM increases as legal barriers continue to fall. We need to be ready to meet our patients’ questions with answers. Anath et al’s findings shows us that though we may be open minded to the possibility of childhood use of MM, it is time to focus our research on the barriers that currently limit our use of this potential therapy.


Abrams, D.I. “Integrating Cannabis into Clinical Cancer Care.” Current Oncology 23.Suppl 2 (2016): S8–S14. PMC. Web. 9 Dec. 2017.

Committee on Substance Abuse, Committed on Adolescence.,  “The Impact of Marijuana Policies on Youth: Clinical, Research, and Legal Update.” Pediatrics, American Academy of Pediatrics, 1 Mar. 2015,

Devinsky, Orrin, et al. “Trial of Cannabidiol for Drug-Resistant Seizures in the Dravet Syndrome.” New England Journal of Medicine, vol. 377, no. 7, 2017, pp. 699–700., doi:10.1056/nejmc1708349.

Ellis, Ronald J, et al. “Smoked Medicinal Cannabis for Neuropathic Pain in HIV: A Randomized, Crossover Clinical Trial.” Neuropsychopharmacology, vol. 34, no. 3, June 2008, pp. 672–680., doi:10.1038/npp.2008.120.

Elder, Joshua J., and Holly M. Knoderer. “Characterization of Dronabinol Usage in a Pediatric Oncology Population.” The Journal of Pediatric Pharmacology and Therapeutics, vol. 20, no. 6, 2015, pp. 462–467., doi:10.5863/1551-6776-20.6.462.

Grant, Igor, et al. “Medical Marijuana: Clearing Away the Smoke.” The Open Neurology Journal, Bentham Open, 2012,

Leung, Lawrence. “Cannabis and Its Derivatives: Review of Medical Use.” The Journal of the American Board of Family Medicine, vol. 24, no. 4, Jan. 2011, pp. 452–462., doi:10.3122/jabfm.2011.04.100280.

Mckallip, R. J. “Cannabidiol-Induced Apoptosis in Human Leukemia Cells: A Novel Role of Cannabidiol in the Regulation of p22phox and Nox4 Expression.” Molecular Pharmacology, vol. 70, no. 3, 2006, pp. 897–908., doi:10.1124/mol.106.023937.

Moore, Theresa Hm, et al. “Cannabis Use and Risk of Psychotic or Affective Mental Health Outcomes: a Systematic Review.” The Lancet, vol. 370, no. 9584, 2007, pp. 319–328., doi:10.1016/s0140-6736(07)61162-3.

Schweinsburg AD, et al.  “The Influence of Substance Use on Adolescent Brain Development.” Clinical EEG and Neuroscience,

Powles, T. “Cannabis-Induced Cytotoxicity in Leukemic Cell Lines: the Role of the Cannabinoid Receptors and the MAPK Pathway.” Blood, vol. 105, no. 3, 2004, pp. 1214–1221., doi:10.1182/blood-2004-03-1182.

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