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Long-term safety and analgesic efficacy of buprenorphine buccal film in patients with moderate-to-severe chronic pain requiring around-the-clock opioids

Authors Hale M, Urdaneta V, Kirby MT, Xiang Q, Rauck R

Received 19 August 2016

Accepted for publication 14 October 2016

Published 25 January 2017 Volume 2017:10 Pages 233—240


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Michael Schatman

Martin Hale,1 Veronica Urdaneta,2 M Todd Kirby,3 Qinfang Xiang,4 Richard Rauck5

1Gold Coast Research, LLC, Plantation, FL, USA; 2Pharmacovigilance and Risk Management, 3Clinical Development, 4Biometrics, Endo Pharmaceuticals Inc., Malvern, PA, USA; 5Carolinas Pain Institute, Wake Forest Baptist Health, Winston Salem, NC, USA

Background: This open-label, single-arm study was conducted to evaluate the long-term safety and efficacy of a novel buprenorphine formulation, buprenorphine buccal film, in the treatment of moderate-to-severe chronic pain requiring around-the-clock opioids.
Methods: The primary purpose of this study was to evaluate the long-term safety and tolerability of buprenorphine buccal film. Five hundred and six patients who completed previous studies with buprenorphine buccal film (n=445; rollover patients) or were recruited de novo for this study (n=61) were enrolled in this study. All patients underwent a dose titration period of ≤6 weeks, during which doses of buprenorphine buccal film were adjusted to a maximum 900 µg every 12 hours, depending on tolerability and the need for rescue medication. An optimal dose was defined as the dose that the patient found satisfactory for both pain relief and tolerability, without the need for rescue medication or with ≤2 tablets of rescue medication per day. Once the optimal dose was reached, treatment was continued for ≤48 weeks. Pain intensity was measured throughout the study using a 0–10 numerical rating scale.
Results: Of 435 patients achieving an optimal dose of buprenorphine buccal film who commenced long-term treatment, 158 (36.3%) completed 48 weeks of treatment. Treatment-related adverse events occurred in 116 patients (22.9%) during the titration phase and 61 patients (14.0%) during the long-term treatment phase, and adverse events leading to discontinuation of treatment occurred in 14 (2.8%) and 14 (3.2%) patients, respectively. The most common adverse events were those typically associated with opioids, such as nausea, constipation, and headache. In both rollover and de novo patients, pain intensity scores remained constant at approximately 3–4 during long-term treatment, and the dose of buprenorphine buccal film remained unchanged in 86.2% of patients.
Conclusion: In appropriate patients, buprenorphine buccal film demonstrated tolerability and efficacy in the long-term management of chronic pain.

buccal drug administration, buprenorphine, chronic pain management, long-term treatment, opioid analgesics

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