• J Pain Symptom Manage · Jun 2022

    The prevalence of off-label prescribing of transmucosal immediate-release fentanyl in France.

    • Virginie Guastella, Jessica Delorme, Chouki Chenaf, and Nicolas Authier.
    • Université de Clermont Auvergne (V.G.), CHU Clermont-Ferrand, Inserm, Neuro-Dol, Palliative Care Center, Clermont-Ferrand, France. Electronic address: vguastella@chu-clermontferrand.fr.
    • J Pain Symptom Manage. 2022 Jun 1; 63 (6): 980-987.

    ContextThe abuse of opioids and opioid-related harms, including deaths, in the United States are well documented. In the European Union, opioid use has also been increasing, particularly of fentanyl.ObjectiveWe assessed the prevalence of off-label prescribing of transmucosal immediate-release fentanyl (TIRF), in France, in 2019. We looked at the patients' and prescribers' characteristics and compared the population of patients who received TIRF in off-label prescriptions with those taking it on-label. We also examined the differences between the patients with and without cancer in the off-label use population.MethodsThis was a population-based cross-sectional study conducted in 2019, using the French national insurance claims database Système National d'Informations Inter-Régimes de l'Assurance Maladie, covering 98.8% of the French population, or 66 million people.ResultsWe selected 224,000 patients with fentanyl prescriptions. Among them, 23,209 had at least one TIRF delivered. The median age was 71 years (59-85) and most patients were female (55.8%). The prevalence of off-label prescribing of TIRF was 51.8% (n = 12,031), corresponding to 9827 patients not diagnosed with cancer. The three main pharmaceutical TIRF specialties prescribed in two groups were Abstral, Pecfent, and Instanyl. Overall, TIRF was mainly prescribed by private general practitioners (64.8%).ConclusionThe prevalence of off-label prescribing of TIRF in France is extremely high. A field survey is now needed 1) to better understand why TIRF is used in conditions not indicated in its marketing authorization, and in what clinical situations, and 2) to determine whether the benefit/risk ratio of such use is favorable.Copyright © 2022 American Academy of Hospice and Palliative Medicine. Published by Elsevier Inc. All rights reserved.

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