BeSpoke Decision Support for Patients With Newly Diagnosed Localised Prostate Cancer

Recruited patient participants will be randomised into two arms: * Standard of Care (SOC) arm: SOC counselling * Intervention arm: SOC counselling plus access to BeSpoke Decision Support The standard of care (SOC) arm includes the nationally-approved Prostate Cancer UK booklet "Prostate Cancer - A guide if you have recently been diagnosed" and patient appointments to discuss different treatments with clinicians, as per local practice that offer them. Further educational material may be provided as per local practice at each site. The intervention arm will offer additional BeSpoke Decision Support providing: * Consistent and up-to-date information about suitable treatment approaches. * Risk-stratified predictions of treatment outcomes based on baseline cancer and patient characteristics. * Value clarification about which attributes of treatment are most important to the individual. All participants will complete questionnaires on demographic data, functional status and measures of decision-making experiences at several time points: enrolment (prior to treatment discussion consultation); after treatment decision has taken place; at 3, 6, and 12 months after treatment commences. The investigators will interview health care professionals and a sample of patient participants to assess the effect of the BeSpoke Decision Support and the challenges in implementation across the NHS.