Table 2.

Population and sampling criteria for the four stakeholder groups

Participant group	Eligibility criteria	Sampling criteria	Target number to recruit in each participating country
Patient	Inclusion criteria: Patients with advanced cancer (defined as those with metastatic cancer (where, if possible, determined through histological, cytological or radiological evidence) and/or those receiving anticancer therapy with palliative intent receiving palliative care Aged ≥18 years Exclusion criteria: Patients with significant cognitive impairment that prevents informed consent Inadequate physical and mental health of a patient prior to recruiting (as deemed by the identifying clinician) Lack of a shared language between researcher and respondent Below 18 years of age	Age Sex Cancer type Location at the time of interview (community based or ward based)	20 purposely selected patients
Caregiver	Inclusion criteria: A primary caregiver/family caregiver of a patient with advanced cancer who is at least 18 years of age Primary caregiver confirmed by the patient, including those who provide unpaid, informal provision of one or more physical, social, practical and emotional tasks. In terms of their relationship to the patient, they may be a friend, partner, ex-partner, sibling, parent, child or other blood or non-blood relative Both caregivers of participating and non-participating patients will be recruited into the study Exclusion criteria: Below 18 years of age Inadequate physical and mental health of a patient prior to recruiting (as deemed by the identifying clinician)	Sex Age Patient involvement in study (ensuring representation of those where the patient whom they care for has participated, and those where the patient has not participated)	15 purposely selected caregivers
Health professional	Inclusion criteria: Working with palliative care patients At least 6 months working experience at recognised palliative care facilities	Role (doctor, clinical officer, nurse, social worker, psychologist, pharmacist) Typical work setting (ie, community based, ward based)	20 purposely selected health professionals
Policy-maker	Inclusion criteria: Representative from government ministry or national association responsible for oversight and development of healthcare in participating country	Working at different levels of the health system (district, national) Policy remit of their post (cancer, non-communicable diseases, digital health)	Up to 10 purposely selected policy-makers