EGFR-TKI is the main is the first line therapy for local advanced or metastatic non-small cell lung cancer with EGFR gene mutation. The median progression free survival time is around 11 months with the first generation EGFR-TKI. Patients with acquired resistance with first generation EGFR-TKI usually with EGFR exon 20 mutation (T790M). Change the drug administration maybe prolong patients PFS and evently prolong OS.
1st generation EGFR-TKI has reversible binding to EGFR, it also bind to T790M in a high dose which is account about 60% patients acquired resistance to the drug. Resistance patients may be benefit to a bolus drug use to block T790M gene.
Study Type
OBSERVATIONAL
Enrollment
30
history data of PFS after 1st line or second line theray
Qingdao Central Hospital
Qingdao, Shandong, China
Progression Free Survival Time (PFS)
Time frame: an average 1 year
Overall Response Rate(ORR)
Time frame: an average half year
Overall Survival Time (OS)
Time frame: an average 2 year
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.