Breakthrough cancer pain: a randomized trial comparing oral transmucosal fentanyl citrate (OTFC®) and morphine sulfate immediate release (MSIR®)

Abstract
Oral transmucosal fentanyl citrate (OTFC®; Actiq®) is a drug delivery formulation used for management of breakthrough cancer pain. Previous studies with open-label comparisons indicated OTFC was more effective than patients’ usual opioid for breakthrough pain. The objective of this study was