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  • Title: Emerging therapies for opioid-induced constipation: what can we expect?
    Author: Roostaei G, Khoshnam Rad N, Fakhri B MS, Nikfar S, Abdollahi M.
    Journal: Expert Opin Pharmacother; 2024 Sep; 25(13):1729-1738. PubMed ID: 39308446.
    Abstract:
    INTRODUCTION: The rise in opioid use for managing chronic and oncologic pain has led to a significant increase in opioid-induced constipation (OIC) that impacts patient quality of life and pain management. AREAS COVERED: In this study, emerging therapies for OIC were criticized for refining advancements and novel treatment options. Key topics included the efficacy of peripherally acting mu-opioid receptor antagonists (PAMORAs) such as methylnaltrexone, naloxegol, and naldemedine, which specifically target opioid-induced gut dysfunction. Other treatment options, including intestinal secretagogues like lubiprostone and linaclotide, selective 5-HT receptor agonists such as prucalopride, and emerging adjunctive therapies like transcutaneous electrical nerve stimulation (TENS) and electroacupuncture were mentioned. Current guidelines from the American Gastroenterological Association (AGA) and the European consensus were criticized. EXPERT OPINION: Experts stress the importance of a stepwise approach to managing OIC, considering patient-specific factors and the efficacy of various treatments. While PAMORAs have demonstrated effectiveness in improving bowel function, their high cost and lack of extensive head-to-head comparisons with traditional laxatives are significant concerns. Emerging therapies and adjunctive treatments offer promising results but require further validation through rigorous studies. Future research should focus on long-term outcomes, cost-effectiveness, and comparative effectiveness to better address the complex needs of patients with OIC and refine treatment protocols.
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