RecruitingClinical trialTelephone-Based Coaching Sessions (TAC) to Improve Advance Care Planning Participation in Advanced Cancer Patients and Their Support PersonThis clinical trial studies whether telephone-based coaching sessions, Talking About Cancer (TAC), work to improve engagement in advance care planning (ACP) in patients with cancer that may have spread from where it first started to nearby tissue, lymph nodes, or distant parts of the body (advanced) and their support person. Participation in ACP, which includes having end of life (EOL) care conversations and completing advance directives (e.g., living will, health care proxy, do not resuscitate order), improves quality EOL care. Despite this, less than half of patients with advanced cancer have EOL care conversations or complete advance directives. TAC coaching sessions are delivered by a social worker over the phone. They are designed to help patients and their support person communicate about ACP, manage the distress these conversations can cause, and participate in the process of ACP with a clear action plan of having goals-of-care conversations and completing advance directives. This may be an effective way to improve ACP participation in advanced cancer patients and their support person.