Cannabis Treatment for Pain and Mood Issues in Cancer

Inclusion Criteria: 1. Able to provide informed consent 2. Aged ≥25 years at Visit 1 (Baseline) 3. Have a diagnosis of any solid tumor type and is currently undergoing or has undergone either curative or palliative treatment in the past 18 months 4. Currently experiencing symptoms of sleep problems, pain, and/or mood disturbance (i.e., depression, anxiety) 5. Desire to use cannabis to treat their symptoms 6. Must not have been regularly using any cannabis products (more than 3x/month) in the last 6 months 7. Willing to practice acceptable methods of birth control until completing study medication Exclusion Criteria: 1. Report of illegal drug use (e.g., cocaine, methamphetamine) in the past 90 days 2. Current use of anti-epileptic medications (e.g., clobazam, sodium valproate, lamotrigine) 3. Current use of medications known to have major interactions with Epidiolex (e.g., buprenorphine, leflunomide, levomethadyl acetate, lomitapide, mipomersen, pexidartinib, propoxyphene, sodium oxybate, teriflunomide) 4. Current use of anti-psychotic medications 5. Current use of potent CYP2C19 or CYP3A4 inducers (e.g., Rifampin, apalutamide, carbamazepine, enzalutamide, ivosidenib9, lumacaftor, ivacaftor, phenytoin, St. John's wort, Fosphenytoin, Mitotane, Phenobarbital, Primidone) 6. Liver function tests (Alanine transaminase \[ALT\] and Aspartate transaminase \[AST\]) levels ≥2x the upper normal limits 7. Moderate or severe liver disease 8. Past or current diagnosis, or family history of diagnosis, of psychosis; current major psychiatric illness, such as bipolar disorder, major depression, or schizophrenia 9. History of seizures 10. For female participant of childbearing potential: Pregnant or lactating at the time of study enrollment or trying to become pregnant. Lack of childbearing potential confirmed by a history of amenorrhea for at least 12 consecutive months and serum FSH level within the laboratory's reference range for postmenopausal females OR documented bilateral oophorectomy and/or hysterectomy 11. Physician response to passive consent indicating contraindications for participation. 12. Unwilling to refrain from cannabis use other than study drug for the entire study duration 13. Men who consume more than 2 alcoholic beverages per day and women who consume more than 1 alcoholic beverage per day