Abstract
7644 Background: With increasing use of MRI and PET to stage NSCLC, the demographics, performance status and distribution of metastases at diagnosis in this patient (pt) population are changing; it is important to reassess the prognostic roles played by baseline clinical variables in the modern therapeutic era. Methods: We retrospectively evaluated the charts of 189 consecutive, unselected pts with stage IV NSCLC seen and followed at the Fox Chase Cancer Center between Oct 2000 and Aug 2003. Data on a variety of pt variables including demographics, histology, metastases, key laboratory tests and treatment were compiled. We intended to identify those that played statistically significant prognostic roles. Results: Median age at diagnosis was 62 years; 77% of pts had PS 0–1 at first presentation. 58% had single organ metastasis; 35% had metastases to the brain (half of these had brain only and a third had solitary brain metastasis). 51% of all pts received palliative radiation to the brain at some point after dx. Overall median survival was 10.8 months. The 1-yr, 2-yr, 3-yr and 4-yr overall survival rates were 44.2%, 21.9%, 11.6% and 7.8% respectively. On multivariate analysis, statistically significant negative prognostic factors included PS ≥ 2 (HR: 1.9, 95% CI: 1.1–3.3), serum albumin ≤ 3 (HR: 1.7, 95% CI: 1.1–2.8) and metastases to > 1 organ (HR: 1.6, 95% CI: 1.03–2.3). Bone and liver metastases, though associated with worse survival in univariate analysis, were not found to be independent predictors of survival. Gender had no bearing on outcome. Conclusions: Survival rates in this advanced NSCLC cohort equal or exceed contemporaneous ECOG figures. PS, serum albumin and number of organs with metastases are independent prognostic factors in NSCLC. The increasing detection of brain metastases at 1st presentation of metastatic NSCLC suggests that the role of prophylactic cranial irradiation in the management of early NSCLC should be explored. No significant financial relationships to disclose. [Table: see text]
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