Is sotoracib chemotherapy or targeted therapy?

In the field of lung cancer treatment, drug selection is crucial. Sotorasib (Sotorasib) is an innovative drug that is unique in that it is a targeted drug specifically targeting the KRAS G12C mutation rather than a traditional chemotherapy drug. This characteristic enables sotorasiib to demonstrate completely different advantages and effects compared with traditional chemotherapy in the treatment of non-small cell lung cancer (NSCLC).

Traditional chemotherapy drugs often inhibit the growth of cancer cells by non-specifically killing rapidly dividing cells in the body. However, this "indiscriminate attack" will not only kill cancer cells, but also cause damage to normal, rapidly dividing cells in the body, such as blood cells, hair follicle cells, etc., thus triggering a series of extensive side effects. In contrast, targeted drugs are more precise. They are designed to target specific gene or protein mutations in cancer cells and can kill cancer cells more effectively while reducing the impact on normal cells.

Among patients with non-small cell lung cancer, KRAS G12C mutation is a relatively common type of gene mutation, accounting for as high as 13% to 15%. This mutation causes the continued activation of the KRAS protein, which promotes cancer cell proliferation and tumor growth. Sotoracib is a targeted drug developed to target this specific mutation. It can bind tightly to the active site of the KRAS G12C mutated protein, thereby inhibiting its signal transduction and blocking the growth signal transmission of tumor cells. This precise mechanism makes sotorasib the first approved KRAS G12C mutation-targeting drug and achieved significant efficacy in clinical trials.

The side effects of sotoraxib are generally milder and more manageable than chemotherapy drugs. Common side effects include fatigue, diarrhea, nausea, and abnormal liver function. These side effects can usually be effectively controlled through dose adjustment or auxiliary drugs, and will not cause extensive toxic effects to patients like chemotherapy.