The study looks at people with locally advanced or metastatic non‑small cell lung cancer that carries a specific genetic change called the KRAS G12C mutation. This mutation is a small alteration in the cancer cells that can make the disease grow faster. The medication being continued in the study is opnurasib, which is also known by the code name JDQ443. It is taken by mouth as a single pill or may be given together with other approved cancer medicines.
The main purpose of the trial is to keep participants who are still benefiting from the drug under medical supervision while safety is monitored. After joining, participants will continue to receive opnurasib on a regular schedule for as long as it remains helpful and tolerable. Visits will include simple check‑ups to record any side effects, any changes in dosage, and overall health. The study does not involve any additional invasive procedures beyond the usual care for this condition.



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