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ORAL 29 - MASCC-IASLC Joint Session: Palliative and Supportive Care (ID 136)
- Event: WCLC 2015
- Type: Oral Session
- Track: Palliative and Supportive Care
- Presentations: 1
ORAL29.07 - Low Prognostic Nutritional Index Correlates with Worse Survival in Patients with Advanced NSCLC following EGFR-TKIs (ID 49)
16:45 - 18:15 | Author(s): J. Sheng
The systemic immunonutritional status has been postulated as related to the long-term prognosis in various cancer types. However, no studies have assessed the prognostic role of prognostic nutritional index (PNI) on the survival of patients with advanced non-small cell lung cancer (NSCLC) harboring epidermal growth factor receptor (EGFR)-activating mutations and receiving tyrosine kinase inhibitors (TKIs).
Advanced NSCLC patients with sensitive EGFR mutations (19 deletion or L858R in exon 21) were retrospectively screened. The PNI was calculated as 10 x serum albumin value (g/dl) + 0.005 x peripheral lymphocyte count (per mm3). Univariate and multivariate analysis were performed to assess the prognostic value of relevant parameters.
144 cases were included for analysis after eligibility review. The optimal cut-off value of PNI for OS stratification was determined as 48.78 according to a R software-engineered, web-based system. Low PNI was significantly associated with elevated CRP level (p<0.0001) and non-response to TKIs (p=0.002). High PNI (high vs low, 35.10 vs 25.67 months; HR, 0.44; 95 % CI, 0.25–0.77; p = 0.004) correlated to superior OS. Survival analysis identified PNI as an independent prognostic factor(p=0.012). Subgroup analysis revealed that PNI was generally a significant prognostic factor in different clinical situations.
Low PNI correlates with worse survival in patients with advanced NSCLC harboring EGFR sensitive mutations and treated with EGFR-TKIs. The assessment of PNI could assist the identification of patients following EGFR-TKIs treatment with poor prognosis and has implications for the routine monitoring and treatment.
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