Despite widespread use of the term "cancer survivor", its meaning is not standardised or universally understood. The most widely used definition incorporates individuals from the time of diagnosis throughout their lives, which includes people living with cancer and people free of cancer. The National Cancer Institute (NCI) (2022) subscribes to this description, and divides survivorship into three phases: individuals with early-stage cancer where the goal is curative intent, individuals with advanced or metastatic cancer where the goal is to prolong life, and individuals with end-stage cancer where the goal is end-of-life care. It presents these as a continuum. It has been suggested that the term, "cancer survivor," is not designed to be a label, but rather to describe a population of people who have a history of cancer (NCI, 2022), recognising that the heterogeneous group encompassed by this term may not all subscribe to it. The perception of patients towards "cancer survivor" in their context has been sought for a variety of groups, generally including patients without progressive disease who have completed treatment, or those undergoing treatment. These individuals have various attitudes towards their inclusion in the term, with some considering it inappropriate, and others finding the group too diverse to be acceptable. One group may be patients known to palliative care services. Palliative care aims to provide holistic care for individuals with health-related suffering due to severe illness to improve the quality of life of patients, their families and caregivers, particularly at the end of life. These patients also fit the definition of 'cancer survivors' using the NCI's definition. There is a particular paucity of evidence on their opinion on survivorship terminology, which may have important implications for patients' receipt of care and the adoption and understanding of this terminology within palliative care services.

The aim of this study is to determine the perceptions of heterogeneous groups of patients known to oncology and palliative care services regarding the terminologies used to describe them, and in particular the term "cancer survivor." This is an international, multicentre, observational study. The study will seek participants known to oncology and palliative care services in 2 target groups in Australia, Canada, Ireland, the United Kingdom (UK), and the United States of America (USA). The overall lead investigator of the study will be based in Our Lady's Hospice \& Care Services, Dublin, Ireland. Each country will have a national site lead who will obtain ethical approval and manage patient recruitment within their country. The overall Principal Investigator (PI) and his research team will lead recruitment in Ireland and overall governance for the study. Established researchers will be identified to lead the project in Australia, Canada, the UK and the USA. They will be required to identify local sites, obtain local ethical / research approval, and provide local support to the overall PI and research team. The study will recruit 383 individuals in Groups 1 and 2 in each area i.e., 1915 individuals for each Group, and 3830 individuals overall.

The study involves a single assessment, which should take 15-30 minutes (and involves completion of a study-specific English-language questionnaire). Case Record Forms (CRFs) will be amended for each country relating to local specifications for education and ethnicity. There will be 2 sections - a researcher section and a participant section, consisting of 3 parts, to complete. Data will be recorded on paper CRFs and transferred onto a secure online platform.

The study will conform to the General Data Protection Regulations (GDPR) (2018) and equivalent legislation in the different countries. All data will be treated as confidential, and data will be pseudonymised to protect the participants' identities. Descriptive statistics will be used to describe individual country data. Quantitative data analysis will be carried out using SPSS software and appropriate statistical tests.

The study will be conducted in accordance with the Declaration of Helsinki, and the International Conference on Harmonisation guidance on Good Clinical Practice. Investigators are responsible for ensuring that appropriate ethical (and other necessary) approvals are in place before the study commences at their study site. The study is considered low risk, and not burdensome for participants.