Disclosed herein are 1,4-naphthoquinone analogs, pharmaceutical compositions that include one or more of such 1,4-naphthoquinone analogs, and methods of treating and/or ameliorating diseases and/or conditions associated with a cancer, such as prostate cancer with such 1,4-naphthoquinone analogs. Also included are combination therapies wherein a 1,4-naphthoquinone analog disclosed herein, and a hormone therapy agent are provided to a subject suffering from a condition such as cancer.