Healthcare resource utilization and associated cost in patients with metastatic non-small cell lung cancer treated in the immunotherapy era.

Background: Treatment approach for metastatic non-small cell lung cancer (mNSCLC) has revolutionized in the recent decade with the introduction of immunotherapy and targeted medications in first-line (1L) therapy. We present real-world data on clinical outcomes and direct healthcare resource utilization (HCRU) and cost in a 2.7-million-member Israeli health provider.

Patients And Methods: Newly diagnosed mNSCLC patients between January 2017 and December 2020 were categorized by 1L treatment: platinum-based chemotherapy, targeted therapy, or immunotherapy. HCRU and costs were calculated based on the Ministry of Health Prices and were assessed at a minimum of 6 months' follow-up (cutoff: 30 June 2021).

Results: A total of 886 patients were included in the study: 40.6% female, median age 68 years (IQR 61-74), 24.3% never smokers, 80.6% with adenocarcinoma, and 54% with a 0-1 performance status. The median follow-up was 27.12 months (95% CI, 24.7-29.6) and the median duration of first-line (1L) treatment was 2.3 months for platinum-based chemotherapy (n = 177), 12.3 months for targeted therapy (n = 255), and 4.8 months for immunotherapy (n = 463). The median overall survival was 9.09, 27.68, and 12.46 months, respectively. Total 1L costs were driven by radiotherapy for platinum-based chemotherapy and medication for targeted therapy or immunotherapy. Total costs for deceased patients over the entire follow-up were €121 155, €129 458, and €110 716, respectively.

Conclusion: The treatment of mNSCLC carries a high economic burden, primarily driven by first-line therapy, especially with targeted and immune therapies. Further studies are needed to evaluate the impact of innovative treatments on the disease management costs of mNSCLC.