A Canadian Observational Study in Metastatic Cancer of the Prostate: A Study of ZYTIGA Use in the Community Urology Setting

The FACT-P consists of the FACT-General (FACT-G) and a prostate cancer subscale. The FACT-G contains a 27-item questionnaire and is composed of 4 subscales of health-related quality-of-life: physical well-being, social/family well-being, emotional well-being, and functional well-being. Each Item is scored on a scale of 0 (Not at all) to 4 (Very much). All Items on a sub-scale will be averaged to derive the sub-scale score.The prostate cancer subscale is composed of 12 items, related to prostate-specific questions, which include sexuality, bowel/bladder function, and pain. The FACT-P questionnaire has a 7-day recall, and takes approximately 15 minutes to complete. Each Item is scored on a scale of 0 (Not at all) to 4 (Very much). All Items on a sub-scale will be averaged to derive the sub-scale score.

The BFI assesses the severity of fatigue and the impact of fatigue on daily functioning. BFI measures the severity of fatigue and the impact of fatigue on daily functioning in the past 24 hours. BFI is a 4 item questionnaire. Each item is assessed on a 11-point scale, ranges from 0 (No Fatigue) to 10 (As bad as you can imagine). Average from all 4 items will be used to derive the final score.

The BPI-SF measures severity of pain, impact of pain on daily function, locations of pain, pain medications, and amount of pain relief in the past 24 hours or the past week. The BPI- SF includes 4 items measuring the intensity of pain which make up the pain intensity subscales, assessed using 11-point numerical rating scales from "0" = no pain to "10" = pain as bad as you can imagine; 7 items that assess how much pain has interfered with 7 daily activities which make up the pain interference subscale, assessed on a scale of 0, "Does not interfere" to 10, "completely interferes." This subscale is typically scored as the mean of the 7 interference items; An additional item on the extent of pain relief.

The CHS-PCa is an exploratory questionnaire that includes 9 questions to assess participant satisfaction with their current status. Each question has 7 response categories corresponding to strongly agree, disagree, somewhat disagree, neither agree nor disagree, somewhat agree, agree and strongly agree.

The WLQ measures the degree to which employed individuals are experiencing limitations on-the-job due to their health problems, and health-related productivity loss. The WLQ items ask respondents to rate their level of difficulty or ability to perform specific job demands. Scale score range from 0 (limited none of the time) to 100 (limited all of the time) and represent the reported amount of time in the prior two weeks respondents were limited on- the-job.

Prostate Specific Antigen (PSA) Level in Plasma at Week 72 will be assessed.

ECOG performance status measured on 6 point scale to assess participant's performance status. 0=Fully active, able to carry on all pre-disease activities without restriction; 1=Restricted in physically strenuous activity, ambulatory and able to carry out light or sedentary work; 2=Ambulatory (greater than [>]50% of waking hours), capable of all self care, unable to carry out any work activities; 3=Capable of only limited self care, confined to bed/chair >50 percent (%) of waking hours; 4=Completely disabled, cannot carry on any self care, totally confined to bed/chair; 5=Dead. 0=Best status, 5=Worst status

At the end of study, each participating investigator, as part of the close out activities, will be interviewed to identify the barriers which were encountered to enrolling participants in the study and also assess if barriers and/or participant flow were changed during the course of the study.