Carbohydrate Antigen 27.29 (CA27.29)

CA27.29: a valuable marker for breast cancer management. Recently, a fully automated method has become commercially available to measure the MUC-1-associated antigen CA27.29.CA27.29 provides comparable results to CA15.3; CA27.29 seems more sensitive than CA15.3 to limited variations of tumour extension; however, it cannot help clinicians in distinguishing stage I patients from stage II patients. However, from the point of view of clinical decision making, CA27.29 provides comparable results to CA15.3. CA27.29 is therefore suitable for routine use in the management of patients with breast cancer.

CA27.29 is a tumor marker useful in the management of patients with metastatic carcinoma of the breast. It is used to monitor the course of breast cancer, patient response to treatment, and disease recurrence.