Patients' attitudes and preferences toward delayed disease progression in the absence of improved survival

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Abstract

Background: Cancer patients' attitudes toward progression-free survival (PFS) gains offered by treatment are not well understood, particularly in the absence of overall survival (OS) gains. The objectives were to describe patients' willingness to accept treatment that offers PFS gains without OS gains, to compare these findings with treatments offering OS gains, and to qualitatively summarize patients' reasons for their preferences. Methods: A multicenter, cross-sectional, convergent mixed-methods study design recruited patients who had received at least 3 months of systemic therapy for incurable solid tumors. A treatment trade-off exercise determined the gains in imaging PFS that patients require to prefer additional systemic treatment for a scenario of a newly diagnosed, asymptomatic, incurable abdominal tumor. A qualitative, descriptive, thematic analysis explored factors influencing patients' decisions, and a narrative method integrated the quantitative and qualitative findings. Results: In total, 100 patients participated (63% were older than 60 years of age). If additional treatment with added toxicity offered no OS advantage, 17% would prefer it for no PFS benefit; 26% for some PFS benefit (range, 3-9 months), whereas 51% would decline it regardless of PFS benefit. Similarly, 71% preferred additional treatment offering a 6-month OS advantage dependent on described toxicity levels (P =. 03). A spectrum of reasons for these preferences reflected the complexity of participants' attitudes and values. Conclusions: Prolongation of time to progression was not universally valued. Most patients did not prefer treatments that negatively affect quality of life for PFS gains alone. Implications for individual decision making, policy, and trials research are discussed.

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Brundage, M. D., Booth, C. M., Eisenhauer, E. A., Galica, J., Kankesan, J., Karim, S., … Robinson, A. (2023). Patients’ attitudes and preferences toward delayed disease progression in the absence of improved survival. Journal of the National Cancer Institute, 115(12), 1526–1534. https://doi.org/10.1093/jnci/djad138

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