Effect of Montelukast on Doxorubicin Induced Cardiotoxicity in Breast Cancer

This is a prospective, randomized (1:1) controlled trial that will be carried out on 50 patients who are candidate to evaluate the effect of montelukast on doxorubicin induced cardiotoxicity after 4 cycles of AC. Patients will be randomly allocated into two equal groups (25 patients each); group (A) for controlled (placebo), and group (B) for montelukast. Blood samples will be collected from the study subjects and analyzed for serum levels of the NF-KB and pro-BNP. Assessment of the biomarkers will be done at two time points: at baseline and after treatment with montelukast.