Yes. Cannabinoids work by blocking the uptake of glucose starving the cancer. Cancer thrives on sugar and protein in an anaerobic environment. Lots of research already done and many anecdotal cures reported. Smoking the plant does nothing. You have to ingest at least 60 grams over 90 days. This does not have to be psychoactive. Juicing the raw plant works as well as a concentrate. Some strains are high CBD and low THC as well.