What is this summary about?The CodeBreaK 200 clinical study included patients with a type of lung cancer called non–small-cell lung cancer that has spread outside the lung (advanced) and had a particular change (mutation) in the KRAS gene. This mutation leads to the mutated protein called KRAS G12C and can lead to lung cancer. The CodeBreaK 200 clinical study looked at whether treatment with sotorasib works better and has fewer side effects than docetaxel. Sotorasib has accelerated approval or full approval for use in over 50 countries for patients with previouslytreated advanced KRAS G12C–mutated non–small-cell lung cancer.What did investigators find?There were 171 adults in the sotorasib group and 174 in the docetaxel group. The median time that patients in the sotorasib group whose disease was no worse or who did not die was 5.6 months. For patients in the docetaxel group, this was 4.5 months. After 1 year, 25% of patients in the sotorasib group had disease that was no worse or did not die. This happened in 100% of patients in the docetaxel group. In total, 48 out of 171 patients (28%) in the sotorasib group had a positive effect to treatment, and their tumors shrunk in size by at least 30% or disappeared. This happened in 23 out of 174 patients (13%) in the docetaxel group. Additionally, 141 out of 171 patients (82%) in the sotorasib group had tumors that either remained stable or shrunk in size. This happened in 105 out of 174 patients (60%) in the docetaxel group. Patients in both the sotorasib and docetaxel groups had a similar median survival (10.6 months in the sotorasib group compared with 11.3 months in the docetaxel group). Almost all patients treated with sotorasib or docetaxel had side effects. They were severe in 56 out of 169 patients (33%) receiving sotorasib and 61 out of 151 patients (40%) receiving docetaxel.What is the key takeaway?Sotorasib is an effective treatment for previously–treated patients with advanced KRAS G12C–mutated non–small-cell lung cancer.[Box: see text].
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