Journal
CANCERS
Volume 15, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/cancers15072119
Keywords
cancer treatment; cannabidiol (CBD); cannabinoids; cannabis products; delta-9-tetrahydrocannabinol (THC); drug interactions; oncology; quality of life; symptom management
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The use of cannabis products in oncology has generated interest, particularly among patients. However, the value of these products in cancer care and the associated risks are still a matter of debate despite the availability of research data. This review aims to provide a recommendation on the use of cannabis products in clinical oncology by assessing recent literature. The different types, characteristics, quality, and pharmacology of cannabis products are discussed. Standardization is crucial for ensuring reliable and reproducible quality. The oromucosal/sublingual route of administration is preferred over inhalation and drinking tea. Cannabinoids may interact with anticancer drugs and symptom management drugs, potentially enhancing or reducing their effects. Clinical research is needed to support the use, or refraining from use, of cannabis products in cancer patients.
The application of cannabis products in oncology receives interest, especially from patients. Despite the plethora of research data available, the added value in curative or palliative cancer care and the possible risks involved are insufficiently proven and therefore a matter of debate. We aim to give a recommendation on the position of cannabis products in clinical oncology by assessing recent literature. Various types of cannabis products, characteristics, quality and pharmacology are discussed. Standardisation is essential for reliable and reproducible quality. The oromucosal/sublingual route of administration is preferred over inhalation and drinking tea. Cannabinoids may inhibit efflux transporters and drug-metabolising enzymes, possibly inducing pharmacokinetic interactions with anticancer drugs being substrates for these proteins. This may enhance the cytostatic effect and/or drug-related adverse effects. Reversely, it may enable dose reduction. Similar interactions are likely with drugs used for symptom management treating pain, nausea, vomiting and anorexia. Cannabis products are usually well tolerated and may improve the quality of life of patients with cancer (although not unambiguously proven). The combination with immunotherapy seems undesirable because of the immunosuppressive action of cannabinoids. Further clinical research is warranted to scientifically support (refraining from) using cannabis products in patients with cancer.
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