To develop an educational patient decision aid for advanced cancer patients to prepare them to have conversations with their clinicians about treatment options (Treatments in Advanced cancer - Decision Aid, TA-DA).
Diagnosis of advanced cancer (i.e., metastatic, relapsed, and/or incurable disease as defined by the treating oncologist) who has received at least 2 lines of palliative systemic therapy*
Patient-rated ECOG performance status of 1-3 for Part I/II and 2-3 for Part III
Able to make treatment decisions based on the clinical judgement of the oncology team
English speaking
(Part I/II/III): Diagnosis of cognitive impairment or dementia requiring a surrogate decision maker as determined by the clinical team
(Part III only): Participants in Part I and II