Association of Performance Status and Pain in Metastatic Bone Pain Management in the Spanish Clinical Setting

Bone metastasis is the most common cause of cancer-related pain, and metastatic bone pain (MBP) is not only severe but also progressive in many patients. The aim of this study was to investigate the association between pain management and performance status in patients with metastatic bone cancer in the Spanish clinical setting. A 3-month follow-up prospective, epidemiologic, multicenter study was conducted in 579 patients to assess the evolution of their performance, the impact of pain control on sleep and functionality, and the degree of pain control according to analgesic treatment. In patients with MBP, Eastern Cooperative Oncology Group (ECOG) status (1.5 ± 0.7–1.3 ± 0.7 and 1.3 ± 0.8; p