This cluster-RCT evaluates the effect of therapeutic virtual reality (VR) on patients with chronic musculoskeletal pain (CMP) who are on a waiting list to receive pain treatment. The used VR application, Reducept, offers pain education and pain management techniques. This home-based, stand-alone, immersive VR intervention was used daily for four weeks in the intervention group. The control group received standard care (no treatment). Primary outcome measure for this study was health-related quality of life, secondary outcome measures included various pain-related variables (e.g. pain self-efficacy and acceptance. Outcome variables will be measured after four weeks and follow-up after six months.