RESUMO
The aim of the present observational 4-week study was to document the feasibility and utility of telephone-based or Internet-based pain monitoring in patients with chronic cancer or noncancer pain, such as nociceptive or neuropathic pain, using transdermal fentanyl. Pain intensity, treatment tolerability, activities of daily living, quality of life, and patient and physician satisfaction were evaluated in 60 (60% women, 42% opioid-naive) chronic pain patients who were switched from oral pain therapy to transdermal fentanyl therapy because of persisting severe pain. When the total dataset of all patient entries was analyzed, treatment with transdermal fentanyl led to decreases in maximal and mean pain scores as reported by the patients (-14% and -19%, respectively, last observation carried forward vs. baseline). Pain reduction was more pronounced in opioid-naive than in opioid-experienced patients (-35% and -25% vs. baseline, respectively; P=0.03). Overall, impairment of daily activities was reduced by 23% with transdermal fentanyl. No effect was observed with regard to quality of life and use of rescue pain medication. Transdermal fentanyl was generally well tolerated. Most patients (60%) preferred the telephone-based to the Internet-based or Internet combined with telephone questionnaires. Patient preference was driven by age, whereby younger patients tended to prefer the Internet and older patients the telephone (mean age, 45 and 54 y, respectively; difference n.s.). Internet-based and telephone-based monitoring of the efficacy and tolerability of opioid treatment for chronic pain was feasible in daily practice and generally well accepted by patients and physicians. Future research will determine the relative contribution of these 2 new options for patient-physician interaction and delineate their role in improving chronic pain control.