• Jordi Guitart, María Isabel Vargas, Vicente De Sanctis, Jordi Folch, Rafael Salazar, José Fuentes, Jordi Coma, Julia Ferreras, Jordi Moya, Albert Tomás, Pere Estivill, Francisco Rodelas, and Antonio Javier Jiménez.
• Department of Anesthesiology, Hospital Plató, c/ Plató 21., 08006, Barcelona, Spain. jordi.guitart@hospitalplato.com.
• Clin Drug Investig. 2015 Dec 1; 35 (12): 815-22.

Background And ObjectiveBreakthrough pain (BTP) is highly prevalent in patients with cancer and is strongly associated with adverse outcomes related to health status, mood, anxiety and depression. However, studies on the effect of BTP medication on quality of life (QOL) are lacking. The purpose of this study was to provide a qualitative evaluation of the effect of sublingual fentanyl tablets (SFT), a therapy specifically developed for BTP, on the QOL of cancer pain patients.MethodsWe conducted a multicentre, prospective observation post-authorisation, open-label study between March and December 2013. The study consisted of a screening visit and four assessment points at 3, 7, 15 and 30 days. Pain intensity (PI), frequency of BTP, onset of pain relief and adverse events (AEs) were assessed at each visit. Anxiety and depression were evaluated using the validated Hospital Anxiety and Depression Scale (HADS) and health status using the Short Form 12, version 2 (SF-12v2) Health Survey.ResultsOf the 102 patients considered eligible, 81 (79.4 %) were enrolled; of these, 69 (85.1 %) completed the study. Significant pain reduction was achieved for average PI (p < 0.001) compared with baseline. At the end of the observational period, HADS scores showed significant improvement in the depression subscale (p = 0.005) and the anxiety subscale (p < 0.001). Similarly, SF-12 scores showed significant improvement, both in the mental component score (p < 0.001) and the physical component score (p = 0.002). SFT was well-tolerated and only one patient withdrew from the study due to drug-related AEs.ConclusionSFT represents an effective, well-tolerated treatment for cancer BTP. Results provide consistent evidence for the positive impact of SFT on health-related QOL and physical functioning as well as other co-morbidities of cancer BTP such as anxiety and depression.

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