Conditions: Pain Chronic Pain Breakthrough Pain
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 218
Healthy volunteers: no

Brief summary:
The primary purpose of the study is to evaluate the impact of treatment with fentanyl buccal tablets on the anxiety symptoms commonly associated with chronic pain in patients with breakthrough pain (BTP). Other purposes are to assess the management of BTP, to evaluate patient functioning, and to determine any influences on the successful dose achieved.

Detailed description:

Arms:
arm 1: Successful dose strength for each participant was determined during a titration period of no more than 10 days. Participants used the successful dose of 100, 200, 400, 600, or 800 mcg during the four week open-label treatment period.

Interventions: intervention 1: Fentanyl Buccal Tablets
Intervention descriptions: intervention 1: Fentanyl buccal tablets (FBT) placed in the buccal cavity above a rear molar until disintegrated, approximately 14-25 minutes.

Dose titration: Participants self-administered FBT, starting at 100, 200 or 400 mcg (depending on analgesic used pre-study) and titrated to 600 and 800 mcg as needed. For each breakthrough pain (BTP) episode, participants took a dose, and did not take further study drug if adequate pain relief was achieved. If pain was not controlled within 30 minutes, the same dose level was repeated. If pain relief was inadequate 30 minutes after the second dose, usual rescue medication was taken for that BTP episode. Doses were adjusted until pain relief was adequate and side effects were tolerated.

Open-label: Once the successful dose of FBT was identified (100, 200, 400, 600, or 800 mcg), participants were dispensed a 4-week supply at the successful dose. Participants were not to use FBT for more than 6 BTP episodes or take more than 8 FBT daily.

Protocol document: