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Cannabinoids May Do More Than Just Manage Cancer Symptoms

Published: Jul 25, 2018   
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The liberalization of cannabis laws around the world has opened the door for researchers to explore the therapeutic benefits of cannabinoids. While GW Pharmaceuticals has already launched products targeting epilepsy and spasticity in Multiple Sclerosis, emerging research suggests that they could play a role in treating many types of cancers.

Pain & Appetite Stimulation

Cannabinoids have been primarily used by physicians to treat the side-effects of cancer. For example, cannabinoids have a well known anti-inflammatory effect that helps reduce pain, while animal studies have strongly suggested that tetrahydrocannabinol (THC) and other cannabinoids can help stimulate appetite and prevent vomiting caused by certain types of chemotherapy.

The most common cancer-related indications with approved drugs around the world include:

  • Stimulating appetite. 
  • Pain relief. 
  • Nausea and vomiting. 
  • Anxiety and sleep.

Dronabinol and Nabilone were both approved by the U.S. Food and Drug Administration (FDA) for the treatment of chemotherapy-related nausea and vomiting in patients that have not responded to conventional therapies. These drugs were possible because they are synthetic cannabinoids created in a lab rather than natural cannabinoids isolated directly from the cannabis plant.

Potential Anticancer Activity 

Researchers have been actively studying cannabinoids to see if they could be beneficial in the treatment of cancer rather than just its side effects.

Cannabinoids have numerous possible effects that could play a role in cancer treatment, according to Cancer.gov:

  • Anti-inflammatory activity. 
  • Blocking cell growth. 
  • Preventing the growth of blood vessels that supply tumors. 
  • Antiviral activity.

There are more than 3,000 studies published on Google Scholar in 2018 alone, with many more that have been published in prior years. These studies address everything from treating cancer symptoms to destroying cancer cells by exposing them to cannabinoid compounds.

Research in the United States has been hindered by the requirement for any researchers interested in studying the drug to obtain a Schedule I license from the Drug Enforcement Administration (DEA) and approval from the National Institute on Drug Abuse (NIDA). However, there are a growing number of scientists in other jurisdictions with more favorable laws, including Canada, where medical cannabis is federally legal.

In June, the company announced that it received a license from the U.S. DEA to conduct research and development on cannabinoids. As one of a few organizations with a Schedule I researcher license, the company is positioning itself to become a leader in cannabinoid drug development. The company also renewed its UBC collaboration and continues to financially support Dr. Wilfred Jefferies' laboratory at the Michael Smith Laboratories.

Immunotherapy Possibilities

Pascal Biosciences Inc. (PAS) believes that cannabinoids could also play a role in helping existing immunotherapy drugs better target cancer cells. In February, the company announced the discovery of certain cannabinoids that enhanced the immunogenicity of tumor cells, which rendered them more susceptible to recognition by the immune system. The discovery is important because it can be used with a new class of cancer-fighting agents -- known as checkpoint inhibitors.

"We are very excited about this novel discovery," commented Dr. Patrick Gray, CEO of Pascal Biosciences. "Cannabinoids typically have good pharmacological properties, as most have low toxicity and are easily absorbed into the blood, which are great advantages for drug development. We have tested hundreds of natural and synthetic cannabinoids in our proprietary assay. This will enable us to soon determine an optimal product. In combination with immune checkpoint inhibitors, cannabinoids may significantly improve cancer care. We look forward to soon translating our results into clinical studies."

This article has been republished from materials provided by Pascal Biosciences. Note: material may have been edited for length and content. For further information, please contact the cited source.


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