Efficacy of a Couple-Focused mHealth Symptom Self-management Program

In this study, the investigators propose to test the efficacy of a couple-focused, web-based tailored prostate cancer symptom management program, Prostate Cancer Education and Resources for Couples (PERC) in a randomized clinical trial. A two-group (PERC versus National Cancer Institute (NCI) website plus treatment as usual) randomized controlled design will be used, and data will be collected at baseline (T1), 4 (T2), 8 (T3), and 12 months (T4) among 300 patients completing initial treatment for localized prostate cancer and their intimate partners (i.e., 600 participants in total).