The Association Between Alpha 1 Acid Glycoprotein Level and Outcome Metastatic Cancer Treated With Docetaxel

Docetaxel based chemotherapy is a standard therapy in various metastatic cancers including lung cancer, breast cancer, gastric cancer, prostate cancer, and bladder cancer. One of the main plasma protein carriers of docetaxel is Alpha 1 acid glycoprotein. Retrospective data suggests that plasma level of alpha 1 acid glycoprotein is associated with the outcome of docetaxel based therapy in cancer patients. The investigators aim to prospectively study the association between the plasma level of alpha 1 acid glycoprotein and the outcome of docetaxel based therapy in cancer patients.