The process of metastasis to other tissues of the body is the final and fatal step during cancer progression and is the least understood genetically.
Despite all currently available treatments, breast cancer is most often incurable once clinically apparent metastases develop.
It is well known that CBD can modulate specific functions of the immune system and the immune system has an important role in the inhibition of cancer progression.
It was essential to determine whether CBD demonstrates antitumor activity and since CBD has a low toxicity, it would be an ideal candidate for use in combination treatments with additional drugs already used in the clinic.