**14. Conclusion and future perspectives**

Medical experts are enthusiastic about the increasing management methods, but they are concerned that resources will be inadequate to get these therapeutics to advanced clinical trials. The difficulties are therefore to choose the most competent drugs to be examined, as well as the appropriate clinical trials to conduct such assessments. Over the last several years, new drugs targeting particular therapeutic targets have resulted in significant advances in the treatment of breast cancer. Resistance to systemic therapy (endocrine and others), expensive treatment, and limited availability of adequate cancer care in many countries remain challenges. We must continue to improve our available technology in order to provide proper guidance for those living with the disease, as well as those at high risk of developing it, and to develop new, more effective therapies in order to significantly improve the outcomes of breast cancer patients around the world. Individualising therapies offers the potential of helping patients through challenging treatment choices in order to enhance their long-term results. In this review, we have uncovered the most well-documented therapy options and potential technologies in the fight against breast cancer. We go through the benefits of medication repurposing for breast cancer treatment in depth in this article. We offered a number of medicines that were effectively repurposed for the treatment of breast cancer. Preclinical investigations have shown that a combination of chemotherapies and a medication repurposing strategy might produce promising results. The possibility of non-cancer drugs being studied for breast cancer in the future, as well as the obstacles and bottlenecks of drug repurposing, were also highlighted. As a result, we draw the conclusion that combining system biology and bioinformatics to select the most appropriate geneprotein-pathway-target-drug modelling has a high potential for providing more efficient, safer, and cost-effective chemotherapeutics for the treatment of even the most severe forms of breast cancer.
