Medical costs of Japanese lung cancer patients during end-of-life care

End-of-Life Costs in Cancer Patients: A Systematic Review

OBJECTIVES

Identify the costs of an oncology patient at the end of life.

METHODS

A systematic literature review was conducted by screening Embase, PubMed and Lilacs databases, including all studies evaluating end-of-life care costs for cancer patients up to March 2024. The review writing followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The quality of the included studies was assessed using the Drummond checklist. The protocol is available at PROSPERO CRD42023403186.

RESULTS

A total of 733 studies were retrieved, and 43 were considered eligible. Among the studies analyzed, 41,86% included all types of neoplasms, 18.60% of lung neoplasm, All articles performed direct cost analysis, and 9.30% also performed indirect cost analysis. No study evaluated intangible costs, and most presented the macrocosting methodology from the payer's perspective. The articles included in this review presented significant heterogeneity related to populations, diagnoses, periods considered for evaluation of end-of-life care, and cost analyses. Most of the studies were from a payer perspective (74,41%) and based on macrocosting methodologies (81,39%), which limit the use of the information to evaluate variabilities in the consumption of resources.

CONCLUSIONS

Considering the complexity of end-of-life care and the need for consistent data on costs in this period, new studies, mainly in low- and middle-income countries with approaches to indirect and intangible costs, with a societal perspective, are important for public policies of health in accordance with the trend of transforming value-based care, allowing the health care system to create more value for patients and their families.

Health Care Resource Use Among Patients with Advanced Non-Small Cell Lung Cancer in Japan, 2017-2019

Background

First-line immune checkpoint inhibitor (ICI) monotherapy for advanced non-small cell lung cancer (NSCLC) was introduced in Japan in February 2017. Limited information is available since that time regarding health care resource use for NSCLC in Japan, where the hospitalization burden is high.

Objective

We evaluated health care resource use from first- through third-line systemic anticancer therapy for patients with advanced NSCLC included in a multicenter, retrospective chart review study.

Methods

Eligible patients were aged 20 years or older with unresectable locally advanced/metastatic NSCLC with no known actionable genomic alteration who initiated first-line systemic anticancer therapy from July 1, 2017, to December 20, 2018, at 23 Japanese hospitals. We calculated the percentage of patients with a record of each resource used, the total number of each resource, and the resource use per 100 patient-weeks of follow-up from initiation of first-, second-, and third-line therapy, overall and by the 3 most common regimen categories, namely, ICI monotherapy, platinum-doublet chemotherapy (without concomitant ICI), and nonplatinum cytotoxic regimens (nonplatinum). Study follow-up ended September 30, 2019.

Results

Among 1208 patients (median age = 70 years; 975 [81%] men), 463 patients (38%) received ICI monotherapy, 647 (54%) received platinum-doublet chemotherapy, and 98 (8%) received nonplatinum regimens as first-line therapy. During the study, 621 (51%) patients initiated second-line, and 281 (23%) initiated third-line therapy. The majority of patients experienced ≥1 hospitalization (76%-94%) and ≥1 outpatient visit (85%-90%) during each therapy line. The number of hospitalizations increased from 6.5 per 100 patient-weeks in first-line to 8.0 per 100 patient-weeks in third-line. During first-line therapy, the number of hospitalizations per 100 patient-weeks were 4.8, 8.4, and 6.5 for patients receiving ICI monotherapy, platinum-doublet chemotherapy, and nonplatinum regimens, respectively, and the percentages of hospitalizations categorized as attributable to NSCLC treatment administration (no surgery, procedure, treatment of metastasis, or palliative lung radiation) were 64%, 77%, and 73%, respectively. The number of outpatient visits increased from 43.0 per 100 patient-weeks in first-line to 51.4 per 100 patient-weeks in third-line therapy. During first-line therapy, outpatient visits per 100 patient-weeks were 41.0, 46.7, and 33.0 for patients receiving ICI monotherapy, platinum-doublet chemotherapy, and nonplatinum regimens, respectively, and the percentages of outpatient visits for infusion therapy were 48%, 34%, and 36%, respectively.

Conclusions

The results of this study, although solely descriptive, showed differing patterns of health care resource use during first-line therapy among the 3 common systemic anticancer therapy regimens for advanced NSCLC in Japan and suggest that further research is needed to investigate these apparent differences by treatment regimen.

Cost-effectiveness of combination therapy of polatuzumab vedotin plus rituximab, cyclophosphamide, doxorubicin, and prednisolone for previously untreated diffuse large B-cell lymphoma in Japan

AIM

The POLARIX trial showed that Pola + R-CHP (polatuzumab vedotin plus rituximab, cyclophosphamide, doxorubicin, and prednisolone) prolongs progression-free survival (PFS) in patients with previously untreated diffuse large B-cell lymphoma (DLBCL) compared with R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone), the conventional standard of care, with a similar safety profile. However, Pola + R-CHP has not been evaluated from the viewpoint of health economics in Japan. This study evaluates the cost-effectiveness of Pola + R-CHP for previously untreated DLBCL from a Japanese public healthcare payer's perspective.

METHODS

A partitioned survival analysis model was constructed to estimate lifetime costs and effectiveness of Pola + R-CHP and R-CHOP in previously untreated DLBCL who had an International Prognostic Index score (IPI) score of ≥2. A parametric survival model was applied to data analyzed in the POLARIX trial to estimate the lifetime overall survival (OS) and PFS for each treatment. The parameters required for the model were based on the results of a literature search and expert opinion.

RESULTS

The incremental cost-effectiveness ratio (ICER) of Pola + R-CHP vs. R-CHOP was JPY2,710,238 per quality-adjusted life year (QALY), less than the ICER of JPY7.5 million per QALY that is considered to be cost-effective based on the threshold of the Japanese cost-effectiveness evaluation system. One-way sensitivity analysis showed that the parameters influencing the results of the analysis were median PFS and the total cost per regimen of salvage chemotherapy, patient weight, and patient age. Probabilistic sensitivity analysis showed that the probability of Pola + R-CHP having superior cost-effectiveness was 99.2% when the reference value was JPY7.5 million. The results of scenario analysis suggested that prolongation of PFS was an important factor in the evaluation of cost-effectiveness in previously untreated DLBCL with or without prolongation of OS.

CONCLUSIONS

This study suggests that Pola + R-CHP is a cost-effective treatment for previously untreated DLBCL in Japan under the public health insurance system.