Novotna, Stanislava A randomized, placebo-controlled study of a new sublingual formulation of fentanyl citrate (fentanyl ethypharm) for breakthrough pain in opioid-treated patients with cancer. [electronic resource] - Clinical therapeutics Mar 2014 - 357-67 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 1879-114X Standard No.: 10.1016/j.clinthera.2014.01.006 doi Subjects--Topical Terms: Administration, SublingualAdultAgedAnalgesics, Opioid--administration & dosageBreakthrough Pain--drug therapyCross-Over StudiesDisease ManagementDouble-Blind MethodFemaleFentanyl--administration & dosageHumansMaleMiddle AgedNeoplasms--drug therapyPain ManagementPain MeasurementTablets