This clinical trial is focused on studying a type of lung cancer known as non-small cell lung cancer (NSCLC) that has specific changes in the EGFR gene. The treatment being tested is a medication called osimertinib, which is also known by its code name AZD9291. Osimertinib is taken as a tablet and works by blocking certain proteins that help cancer cells grow. The purpose of this study is to evaluate how effective osimertinib is in treating this type of lung cancer.
Participants in the study will receive osimertinib as their first treatment for NSCLC. The study will involve taking the medication regularly and attending scheduled visits for monitoring. During these visits, doctors will check how the cancer is responding to the treatment and monitor the overall health of the participants. Some participants may receive a placebo, which looks like the real medication but does not contain the active substance.
The study will also include additional research on biological samples to better understand how osimertinib works and to explore other potential effects of the treatment. This research may involve analyzing blood and tissue samples to look for changes in the cancer or in the body’s response to the treatment. The study aims to provide valuable information on the effectiveness and safety of osimertinib for patients with EGFR-mutated non-small cell lung cancer.



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