Cancers, Pain

This study will enroll patients with cancer and participants will be randomized to receive one dose of cannabis for approximately 4 months. There is a 3/4 (or 75%) chance that a participant will receive an active cannabis dose in the study. There is a 1/4 (or 25% chance) that a participant will receive a placebo dose (meaning a blank dose/no cannabis/no active drug). The goals of this study are to determine 1) the safety and tolerability of cannabis in individuals with cancer and 2) if cannabis can help with the side effects of cancer and cancer treatment - including nausea and vomiting, appetite, pain, sleep, and quality of life.