Enzalutamide is primarily used in the treatment of prostate cancer, particularly in cases where the cancer has spread to other parts of the body or has become resistant to traditional hormone therapies. It works by blocking the effects of androgens, which are male hormones that can promote the growth of cancer cells. This makes it especially effective in managing castration-resistant prostate cancer (CRPC), where the disease progresses despite low levels of testosterone. Enzalutamide is typically administered orally and is often part of a comprehensive treatment plan that may include other therapies. Its ability to target androgen receptor signaling helps slow disease progression, improve survival rates, and enhance the quality of life for patients.