A comprehensive review on nanocarriers as a targeted delivery system for the treatment of breast cancer

Breast cancer is the most common malignant tumour in women worldwide, as well as the leading cause of death from malignant tumours. All across the world, the incidence of breast cancer is steadily rising. Although numerous drugs acting through various mechanisms of action are available in the market as conventional formulations for the treatment of breast cancer, they face significant challenges in terms of bioavailability, dosing, and associated adverse effects, which severely limit their therapeutic efficacy. Several studies have shown that nanocarriers can significantly improve the drug's bioavailability, reducing the need for frequent dosing and reducing the toxicity linked to high drug doses. The current review provides insight into the challenges associated with conventional breast cancer formulations and the need for oral nanoparticulate systems to overcome problems associated with conventional formulations. This review focuses on various topics, such as an in-depth analysis of potential anticancer drugs that have used nanocarrier technology to treat breast cancer successfully.