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EP1.01 - Advanced NSCLC (ID 150)
- Event: WCLC 2019
- Type: E-Poster Viewing in the Exhibit Hall
- Track: Advanced NSCLC
- Presentations: 1
- Now Available
- Coordinates: 9/08/2019, 08:00 - 18:00, Exhibit Hall
EP1.01-08 - Efficacy of Osimertinib in Patients of Advanced Non-Small Cell Lung Cancer with Brain Metastasis: A Retrospective Analysis (Now Available) (ID 1656)
08:00 - 18:00 | Author(s): lixuan Chen
Osimertinib (AZD9291) is an oral, irreversible, third-generation epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI) that selectively inhibits both EGFR-TKI-sensitizing and EGFR T790M resistance mutations.The aim of this retrospective study was to evaluate the efficacy of AZD9291 for advanced non-small cell lung cancer(NSCLC) patients with brain metastasis.Method
We followed up patients diagnosed with advanced non-small cell lung cancer who were detected with EGFR gene mutation and who received EGFR-TKI from 1st October 2006 to 1st June 2018.Patients finally collected were divided into two groups:One group comprised of 45 patients received first-generation or second-generation EGFR-TKI alone,while other group included 45 patients were given AZD9291.And the 95% confidence interval (CI)and the median progression-free survival (mPFS)were calculated by the Kaplan-Meier method.Result
The median progression-free survival(mPFS) was longer with osimertinib than with standard EGFR-TKIs (14.0 months vs. 11.0 months; 95%Cl: 10.160-13.840, P=0.017). The mPFS of patients with brain metastasis was significantly longer with osimertinib than with standard EGFR-TKIs(13.0 months vs. 7.0 months; 95%CI: 6.087-11.913, P=0.020). The mPFS of patients with osimertinib was longer with combined radiotherapy than with not receive radiotherapy(18.0 months vs. 13.0 months; 95%CI:7.066-18.934, P=0.915).Conclusion
In patients with non-small cell lung cancer with brain metastases, the median progression-free time of patients with osimertinib was longer than that of patients with first- or second-generation EGFR-TKIs alone, but osimertinib combined with radiotherapy showed no statistical significance compared with no radiotherapy.
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