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MINI 17 - WT EGFR, Angiogenesis and OMD (ID 131)
- Event: WCLC 2015
- Type: Mini Oral
- Track: Treatment of Advanced Diseases - NSCLC
- Presentations: 1
MINI17.12 - Survival Analysis of Stage IV NSCLC with Synchronous Isolated Metastasis in a Large Retrospective Cohort (ID 752)
16:45 - 18:15 | Author(s): M. Perrin
Stage IV Non-Small Cell Lung Cancer (NSCLC) is considered as an incurable disease with median survival of 6 to 12 months. Palliative platinum based chemotherapy is the standard therapy. It has been suggested that patients with one synchronous isolated metastasis (SIM) suitable for local therapy have longer survival.
Database of the Multidisciplinary Thoracic Oncology Group of our centre was retrospectively screened from 1993 to 2012. Consecutive NSCLC of any stage were included. Median overall survivals (OS) between stage III and stage IV (SIM and non SIM) were compared with log-rank test. For the multivariate analyses Cox models were performed.
4917 patients were registered, 85 were excluded because of missing data. Among the study population, 1335 (27.6%) patients were stage III NSCLC, 1483 (31%) non SIM stage IV and 109 (2%) SIM stage IV. SIM site were mainly brain (n=70, 64%) and adrenal gland (n=16, 15%). Clinical and histological data differed substantially between each stage (Table 1). Median OS was significantly longer in SIM stage IV compared to non-SIM stage IV (18 [IQR, 9-33] months vs 6 [IQR, 2-13] months respectively, p-value<10[-4]) and not significantly different between SIM stage IV and stage III (14 months [IQR, 6-31], p-value=0.05). In multivariate analysis (Table 2), we still observed that median survival of SIM stage IV and stage III were not significantly different (p-value= 0.47).Figure 1 Figure 2
OS of SIM stage IV is remarkably improved compared to non SIM stage IV, and comparable to stage III. This data supports aggressive treatment in the subgroup of SIM stage IV.
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