Study to Test the Efficacy of the PRO-SELF® Plus Pain Control Program to Reduce Pain in Outpatients With Cancer

BACKGROUND: Up to 64% of cancer patients experience pain, and as many as 40% of patients with pain do not receive adequate pain management. And while potential to reduce pain has been shown in several interventions that support patients' self-management, effects have been moderate. PURPOSE: This multicenter mixed methods study primarily aims to evaluate the efficacy of the adapted German PRO-SELF© Plus Pain Control Program (PCP) on pain intensity, to explore the intervention's effect on associated symptoms and other patient and family caregiver (FC) outcomes, and to explore patients' and FCs' experiences with cancer pain management. METHODS: A nested concurrent mixed methods design will be used for this multi-center study, that is, a randomized controlled trial (RCT) will be combined with a qualitative substudy. Participants will be randomly assigned to a 6-week intervention or usual care group; outcomes will be evaluated at 6 weeks post-randomization. The primary outcome will be pain intensity. A total sample of 210 patients with cancer pain and approximately 105 FCs will be recruited from the oncology outpatient clinics of the University Hospitals Basel, Zurich and Bern. The intervention is designed to implement structured and tailored components (information, skill-building, nurse coaching) and aims at improving patients' pain self-management. Data analysis will follow an intent-to-treat strategy and generalized mixed models will be used. For the qualitative substudy, 60 patients and FCs of both groups will be interviewed. Data will be systematically summarized.