Tegaserod for the Treatment of Irritable Bowel Syndrome

(E-pub Ahead of Print)

Author(s): Valentina Noemi Madia, Antonella Messore, Francesco Saccoliti, Valeria Tudino, Alessandro De Leo, Daniela De Vita, Martina Bortolami, Luigi Scipione, Ivano Pindinello, Roberta Costi*, Roberto Di Santo.

Journal Name: Anti-Inflammatory & Anti-Allergy Agents in Medicinal Chemistry
(Formerly Current Medicinal Chemistry - Anti-Inflammatory & Anti-Allergy Agents)

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Abstract:

Background: Tegaserod (Zelnorm®) is a 5-hydroxytryptamine (serotonin) type 4 receptor agonist for the treatment of hypomotility disorders of the lower gastrointestinal tract associated with the irritable bowel syndrome with constipation (IBS-C).

Objective: The authors provide the reader with a better understanding on tegaserod mechanism of action, on its pharmacodynamics and pharmacokinetic properties, on safety and tolerability, with a summary of the key published clinical trials conducted in patients with IBS. Its effects on colon inflammation have also been described.

Results: Tegaserod was withdrawn in 2007 due to increased risks of cardiovascular adverse effects. The manufacturer denied this, because pre-existing cardiovascular disease or risk factors were attributed to all affected patients. Thus, no causal relationship between tegaserod use and cardiovascular events was clearly shown. A matched case-control study of tegaserod-treated with untreated patients found no association between tegaserod and adverse cardiovascular outcomes. Despite its adverse effects, tegaserod resulted to be effective in treating chronic constipation in adult women aged < 65 years with IBS-C, while the safety and effectiveness of tegaserod in men with IBS-C have not been established. Tegaserod was resubmitted to the Food and Drug Administration in 2018 for use in a low-risk population. Moreover, tegaserod has also been shown to improve symptoms, enhance gastric accommodation and significantly attenuate visceral pain arising from the colon in functional dyspepsia patients. Treatment with tegaserod seems also to exert a protective effect in inflamed colons, reducing the severity of colitis in animal models.

Keywords: constipation, irritable bowel syndrome, chronic bowel disorder, abdominal pain, 5-HT4 agonist, clinical trials, tegaserod maleate, Zelnorm®

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(E-pub Ahead of Print)
DOI: 10.2174/1871523018666190911121306

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