A KRAS-mutációs státusz prediktív szerepe biszfoszfonáttal kezelt, csontáttétet képző
tüdő-adenokarcinómában [Predictive relevance of KRAS mutational status in bone metastatic
lung adenocarcinoma treated with bisphosphonate therapy]
The therapeutic impact of KRAS mutations remains controversial in bone metastatic
lung adenocarcinoma (LADC). Therefore, our aim was to investigate the effects of KRAS
mutational status on overall survival (OS) in these patients according to bisphosphonate
therapy (BTx) and radiation therapy (RTx). In total, 134 LADC patients diagnosed with
simultaneous bone metastasis were included in this study. The results of the univariate
(p=0.008) and multivariate (p=0.004) survival analyses indicated that KRAS mutation
is a negative prognostic factor. Both BTx and RTx can increase the OS with a pronounced
benefit for patients with KRAS wild-type tumors. Importantly, the concomitant use
of BTx and RTx might increase the OS irrespective of KRAS status compared to BTx or
RTx alone. In summary, our results might contribute to the development of new therapeutic
approaches with regards to KRAS mutational status in bone metastatic LADC.