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MINI 04 - Clinical Care of Lung Cancer (ID 102)
- Event: WCLC 2015
- Type: Mini Oral
- Track: Treatment of Advanced Diseases - NSCLC
- Presentations: 1
MINI04.12 - Systematic Review of Brain Metastases in Non-Small Cell Lung Cancer (NSCLC) in the United States, European Union, and Japan (ID 1591)
16:45 - 18:15 | Author(s): A.W. Nyhuis
Prevalence of brain metastases (BRM) is increasing due to better detection methods and patients living longer with their disease, presenting an unmet need. Importantly, BRM are more common in NSCLC than most other cancers. Published literature offers incomplete data on prevalence, treatment, costs, and outcomes associated with BRM in NSCLC. This study was designed to better understand the epidemiology, treatment patterns, costs, and overall survival (OS) of NSCLC patients with BRM in the US, EU, and Japan.
A systematic review was conducted by searching PubMed, Ovid, and Embase from January 2003 to December 2013 according to PRISMA guidelines. Keywords, MeSH, and Emtree terminology were used to define the search strategy. Eligible studies were observational, published in English, and peer-reviewed research of patients with NSCLC and BRM. Demographic, clinical, and outcomes data were extracted into Excel. Descriptive statistics were generated with SAS version 9.2. Demographics were summarized and treatment patterns and median OS were assessed by country.
The literature search identified 8,257 articles and 243 studies were eligible. There were 46,422 NSCLC cases included. Patient characteristics are summarized in Table 1. Treatment patterns for BRM from NSCLC were reported across the US, EU, and Japan. Median OS of NSCLC patients from the time of BRM diagnosis ranged from 5.0 to 13.1 months by country (Figure 1). The rate, by country, of radiation therapy among NSCLC patients with BRM ranged from 32.9% to 90.1%, systemic therapy ranged from 5.8% to 39.7%, and surgery was used in 2.2% to 31.6% of studies. Figure 1 Figure 2
Reported median OS and treatment patterns were highly variable. Exposure to risk factors associated with BRM may help explain some of the geographic variability in survival. The lack of published cost data underscores the need to quantify the economic burden of BRM on patients and society.
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