Palmitoylethanolamide in the Treatment of Chronic Pain Caused by Different Etiopathogenesis

Authors

  • Antonio Gatti MD,

    Corresponding author
    1. Department of Emergency and Admission, Critical Care Medicine, Pain Medicine and Anaesthetic Science. Foundation PTV Polyclinic Tor Vergata. University of Rome “Tor Vergata,” Rome, Italy
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  • Marzia Lazzari MD,

    1. Department of Emergency and Admission, Critical Care Medicine, Pain Medicine and Anaesthetic Science. Foundation PTV Polyclinic Tor Vergata. University of Rome “Tor Vergata,” Rome, Italy
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  • Valentina Gianfelice MD,

    1. Department of Emergency and Admission, Critical Care Medicine, Pain Medicine and Anaesthetic Science. Foundation PTV Polyclinic Tor Vergata. University of Rome “Tor Vergata,” Rome, Italy
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  • Annarita Di Paolo MD,

    1. Department of Emergency and Admission, Critical Care Medicine, Pain Medicine and Anaesthetic Science. Foundation PTV Polyclinic Tor Vergata. University of Rome “Tor Vergata,” Rome, Italy
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  • Elisabetta Sabato MD,

    1. Department of Emergency and Admission, Critical Care Medicine, Pain Medicine and Anaesthetic Science. Foundation PTV Polyclinic Tor Vergata. University of Rome “Tor Vergata,” Rome, Italy
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  • Alessandro Fabrizio Sabato MD

    1. Department of Emergency and Admission, Critical Care Medicine, Pain Medicine and Anaesthetic Science. Foundation PTV Polyclinic Tor Vergata. University of Rome “Tor Vergata,” Rome, Italy
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  • Disclosure and conflict of interest: The authors declare no conflict of interest and no disclosure of information associated with this manuscript.

Antonio Gatti, MD, Fondazione PTV Policlinico Tor Vergata, Dipartimento di Medicina Critica, del Dolore e delle Scienze Anestesiologiche, Università degli Studi di Roma, Viale Oxford, 81, 00100 Roma, Italy. Tel: +39-06-20900638; Fax: +39-06-20904790; E-mail: antonio.gatti@ptvonline.it.

Abstract

Objective.  To assess the efficacy and safety of palmitoylethanolamide (PEA), an endogenous fatty acid amide belonging to the N-acylethanolamines family, in reducing pain severity in patients with pain associated to different pathological conditions.

Methods.  This was an observational study conducted on 610 patients who were unable to effectively control chronic pain with standard therapies. PEA (600 mg) was administered twice daily for 3 weeks followed by single daily dosing for 4 weeks, in addition to standard analgesic therapies or as single therapy. The primary outcome measure was the mean score pain severity evaluated by the numeric rating scale. Safety was also evaluated.

Results.  PEA treatment significantly decreased the mean score pain intensity evaluated in all patients who completed the study. The PEA effect was independent of the pain associated pathological condition. PEA-induced decrease of pain intensity was present also in patients without concomitant analgesic therapy. Importantly, PEA showed no adverse effects.

Conclusions.  In this study, PEA was effective and safe in the management of chronic pain in different pathological conditions.

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