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Poster Session (ID 8)
- Event: ACLC 2018
- Type: Poster Session
- Presentations: 1
- Coordinates: 11/07/2018, 00:00 - 00:00, Poster Hall
P087 - TNM Staging Inversely Correlates with Age in ALK-positive Lung Cancer (ID 63)
00:00 - 00:00 | Author(s): H. Yan
The patients with lung cancer and anaplastic lymphoma kinase (ALK) rearrangement predominantly occur younger. However, few large-scale studies revealed the clear correlation between age, tumor nodes metastases (TNM) staging and morbidity in this rare population.
The age of ALK-positive lung cancer at initial diagnosis were compared between various TNM stages. Clinical characteristics, morbidity and prognosis were analyzed stratified by different age groups.
Of 411 patients, the younger group showed more frequent T3/4 stage (P = 0.014), more frequent lymph nodes metastasis (P = 0.011) and more frequent distant metastasis (P = 0.015). Across the entire patient cohort, the median age was 51 years, which decreased steadily with clinical stages (stage I/II vs. III vs. IV, 55 vs. 52 vs. 49 years). There was significant inverse correlation between age and clinical stages (P < 0.001). These laws also existed at various T, N, M categories. What was more, morbidity of ALK rearrangement manifested a steady downward trend with older age groups (?40 vs. 40-49 vs. 50-59 vs. ?60 years: 18.8% vs. 11.6% vs. 5.0% vs. 2.2%). Surprisingly, ALK-positive patients with stage IIIb-IV disease had much higher incidence than the patients with stage I-IIIa disease (6.1% vs. 3.4%, P < 0.001). Finally, the ALK-positive patients aged younger showed poorer outcomes compared with the older group.
TNM staging exhibited a significant inverse correlation with age in ALK-positive lung cancer. More unique therapeutic and research strategies should be required in these patients of young age.