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  • Title: Healthcare costs in patients with advanced non-small cell lung cancer and disease progression during targeted therapy: a real-world observational study.
    Author: Skinner KE, Fernandes AW, Walker MS, Pavilack M, VanderWalde A.
    Journal: J Med Econ; 2018 Feb; 21(2):192-200. PubMed ID: 29041833.
    Abstract:
    AIMS: To assess healthcare costs during treatment with epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) and following disease progression in patients with advanced non-small cell lung cancer (NSCLC). METHODS: A retrospective analysis of medical records of US community oncology practices was conducted. Eligible patients had advanced NSCLC (stage IIIB/IV) diagnosed between January 1, 2008 and January 1, 2015, initiated treatment with erlotinib or afatinib (first-line or second-line), and had disease progression. Monthly Medicare-paid costs were evaluated during the TKI therapy period and following progression. RESULTS: The study included 364 patients. The total mean monthly cost during TKI therapy was $20,106 (95% confidence interval [CI] = $16,836-$23,376), of which 47.0% and 42.4% represented hospitalization costs and anti-cancer therapy costs, respectively. Following progression on TKI therapy (data available for 316 patients), total mean monthly cost was $19,274 (95% CI = $15,329-$23,218), and was higher in the 76.3% of patients who received anti-cancer therapy following progression than in the 23.7% of those who did not ($20,490 vs $15,364; p < .001). Among patients who received it, anti-cancer therapy ($11,198; 95% CI = $7,102-$15,295) represented 54.7% of total mean monthly cost. Among patients who did not receive anti-cancer therapy, hospitalization ($13,829; 95% CI = $4,922-$22,736) represented 90.0% of total mean monthly cost. Impaired performance status and brain metastases were significant predictors of increased cost during TKI therapy. LIMITATIONS: The study design may limit the generalizability of findings. CONCLUSIONS: Healthcare costs during TKI treatment and following progression appeared to be similar and were largely attributed to hospitalization and anti-cancer therapy. Notably, almost one-quarter of patients did not receive anti-cancer therapy following progression, potentially indicating an unmet need; hospitalization was the largest cost contributor for these patients. Additional effective targeted therapies are needed that could prolong progression-free survival, leading to fewer hospitalizations for EGFR mutation-positive patients.
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