A mixed-method analysis of oncologist-patient communications about immune checkpoint inhibitors (COACH).

Background: Despite significant attention in the media and oncology community about improved outcomes associated with immune checkpoint inhibitors (ICIs), there remains a gap in our understanding of how oncologists describe ICIs to their patients. Communication around ICIs represents a challenge as some patients have durable, remarkable benefits while others experience severe toxicities. We investigated oncologist-patient communication practices by performing a mixed-methods study of in-clinic discussions about ICIs.

Materials and methods: This was a mixed-method study in which in-clinic conversations between oncologists and their patients with advanced cancers about ICIs as potential treatments were audio-recorded. Patients were asked to complete a post-discussion survey. Qualitative data was derived from a general inductive thematic approach while descriptive statistics were used to analyze the survey responses.

Results: We recorded and analyzed 13 in-clinic conversations involving 8 oncologists and 13 patients. Twelve patients completed the post-discussion surveys. The conversations involved sophisticated discussions of immune function, cancer and ICI mechanisms, and trade-offs between anticancer benefits and toxicities. Oncologists incorporated metaphors and probabilistic information in their explanations. In the post-discussion surveys, patients indicated a preference for detailed information about ICIs and reported that they received the right depth of information in these discussions.

Conclusions: During in-clinic discussions of ICI therapy, oncologists provided detailed information about immunology and cancer, often aided by metaphors. Probabilities were commonly used to describe the likelihood of toxicities and benefits. The amount of information provided by the oncologists aligned with the patients' preference for detailed information about their cancer treatments.