“…6,8,9 Patients with a metastatic stage (invasive BC) are primarily treated with systemic therapies, including chemotherapy, targeted therapy, hormonal therapy, and more recently, immunotherapy. [5][6][7][8] To reduce the growth and division of cancerous cells, different drugs or their combinations are used in combating the disease. 9 However, proven disadvantages such as side effects, inability to adjust the dosage, failure to reach the desired region effectively, and efficiency loss before the targeted area is reached are associated with the conventional chemotherapeutic drugs.…”