Pharmacokinetics of Fentanyl Sublingual Spray in Opioid-Naïve Participants: Results of a Phase 1, Multiple Ascending Dose Study

Fentanyl sublingual spray may be a viable alternative to intravenous (IV) opioids for the treatment of acute pain. As patients with acute pain may include those who have limited prior exposure to opioids, this phase 1, open-label, randomized, multiple ascending-dose study was conducted to assess the pharmacokinetics, pharmacodynamics, safety, and tolerability of multiple doses of fentanyl sublingual spray in opioid-naïve participants. This...