MEK inhibitor

A MEK inhibitor is a type of targeted cancer drug that blocks a specific protein called MEK, which is part of a chain of signals inside cells that promote their growth and division. In some cancers, this pathway is overactive, leading to uncontrolled cell growth. By inhibiting MEK, these drugs help slow down or stop the growth of cancer cells. They are often used in treating certain cancers, such as melanoma and lung cancer, especially when these cancers involve abnormal activation of the MEK pathway.