Out-of-pocket costs for commercially insured patients with localized prostate cancer

Purpose: Financial toxicity is an underappreciated component of cancer survivorship. Treatment-specific out-of-pocket costs for patients undergoing localized prostate cancer treatment have not, to date, been described and may influence patient's decision making. Methods: We performed a retrospective cohort study among commercially-insured patients in the United States with incident prostate cancer from 2013 to 2018. We captured out-of-pocket and total costs in the year following diagnosis and compared these between patients receiving radical prostatectomy, radiotherapy, and no local treatment using propensity-score weighting adjusting for patient demographics and pre-diagnosis health utilization costs. Results: Among 30,360 included men [median age 59 years, 83% Charlson score 0], 15,854 underwent surgery, 5,265 radiotherapy, and 9,241 no local therapy in the year following diagnosis. In the 6-months preceding diagnosis, median overall and out-of-pocket health care costs were $2022 (interquartile range $3778) and $466 (interquartile range $781), respectively. Following propensity-score weighting, out-of-pocket costs were significantly lower for patients who received no active treatment (adjusted cost $1746, 95% confidence interval [CI] $1704–1788), followed by those who underwent surgery ($2983, 95% CI $2832–3142, P < 0.001), and those who underwent radiation ($3139, 95% CI $2939–3353, P < 0.001) in the 6-months following diagnosis. Similar patterns were seen with out-of-pocket costs 6 to 12 months following index, with overall costs, and with costs attributable to inpatient, outpatient medical, and outpatient pharmacy services. Conclusions: Among commercially insured men with incident prostate cancer, active treatment with surgery or radiotherapy was associated with significantly higher out-of-pocket costs versus those who received no treatment, with little difference observed between treatment approaches.