PMID- 25162604 OWN - NLM STAT- MEDLINE DCOM- 20150415 LR - 20140828 IS - 1551-7489 (Print) IS - 1551-7489 (Linking) VI - 10 IP - 4 DP - 2014 Jul-Aug TI - Lack of correlation between the effective dose of fentanyl sublingual spray for breakthrough cancer pain and the around-the-clock opioid dose. PG - 247-54 LID - jom.2014.0212 [pii] LID - 10.5055/jom.2014.0212 [doi] AB - OBJECTIVE: To examine the relationship between the dose of fentanyl sublingual spray needed to control breakthrough cancer pain (BTCP) and the dose of around-the-clock (ATC) opioid used to control background pain. DESIGN: Analysis was based on the open-label, dose-titration phase (up to 26 days) of a randomized, double-blind, placebo-controlled trial. PATIENTS: Opioid-tolerant cancer patients (aged >/=18 years) with chronic pain of /=1 week and 1 to 4 episodes of BTCP per day. INTERVENTIONS: Fentanyl sublingual spray was initiated at 100 microg. Dose titration proceeded until a dose was reached that provided adequate pain relief for two consecutive BTCP episodes without intolerable adverse effects (AEs). RESULTS: Overall, 98/130 (75.4 percent) patients completed the dose-titration phase and achieved pain relief, and 73.5 percent of those who completed the titration period attained an effective dose of >/=600 microg (median effective dose, 800 microg). No clinically relevant correlation was found between effective doses of fentanyl sublingual spray for the treatment of BTCP and the ATC opioid doses used to control persistent pain (Spearman rank correlation [rs]=0.351, n=98). Sixty percent of patients reported >/=1 AE during the dose-titration phase. The most common AEs considered related to study treatment were nausea (6.2 percent), somnolence (4.6 percent), dizziness (3.8 percent), and vomiting (3.8 percent). CONCLUSIONS: These findings highlight the importance of titrating the dose of fentanyl sublingual spray to optimize dosing for individual patients. FAU - Nalamachu, Srinivas R AU - Nalamachu SR AD - International Clinical Research Institute, Overland Park, Kansas. FAU - Parikh, Neha AU - Parikh N AD - INSYS Therapeutics, Inc., Chandler, Arizona. FAU - Dillaha, Larry AU - Dillaha L AD - NSYS Therapeutics, Inc., Chandler, Arizona. FAU - Rauck, Richard AU - Rauck R AD - The Center for Clinical Research, Winston-Salem, North Carolina. LA - eng PT - Clinical Trial, Phase III PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - J Opioid Manag JT - Journal of opioid management JID - 101234523 RN - 0 (Aerosols) RN - 0 (Analgesics, Opioid) RN - UF599785JZ (Fentanyl) SB - IM MH - Administration, Sublingual MH - Adult MH - *Aerosols MH - Aged MH - Analgesics, Opioid/*administration & dosage/adverse effects MH - Breakthrough Pain/diagnosis/*drug therapy/etiology MH - Double-Blind Method MH - Drug Administration Schedule MH - Drug Tolerance MH - Female MH - Fentanyl/*administration & dosage/adverse effects MH - Humans MH - Male MH - Middle Aged MH - Neoplasms/*complications MH - Pain Measurement MH - Severity of Illness Index MH - Time Factors MH - Treatment Outcome EDAT- 2014/08/28 06:00 MHDA- 2015/04/16 06:00 CRDT- 2014/08/28 06:00 PHST- 2014/03/07 00:00 [received] PHST- 2014/06/23 00:00 [accepted] PHST- 2014/08/28 06:00 [entrez] PHST- 2014/08/28 06:00 [pubmed] PHST- 2015/04/16 06:00 [medline] AID - jom.2014.0212 [pii] AID - 10.5055/jom.2014.0212 [doi] PST - ppublish SO - J Opioid Manag. 2014 Jul-Aug;10(4):247-54. doi: 10.5055/jom.2014.0212.