Irritable bowel syndrome with constipation (IBS-C) as the predominant bowel symptom is a prevalent disorder, characterized by recurring abdominal pain/discomfort, bloating, and constipation, and imposes a significant socio-economic burden. Traditional treatments generally address just one of the multiple IBS symptoms. The efficacy and safety profile of tegaserod, a serotonin 5-HT 4 receptor agonist, has been demonstrated in several randomized, placebo-controlled, and open-label trials. This review discusses the major clinical trials of tegaserod, which have involved 8948 IBS patients. Overall, data reveal that tegaserod is an effective treatment for IBS-C, providing statistically significant relief of overall and multiple individual IBS-C symptoms (abdominal pain/discomfort, bloating, and constipation) in both placebo-controlled and "real-life" open-label settings. Repeat treatments with tegaserod were also shown to be effective, which is noteworthy given the chronic and episodic nature of IBS. Moreover, tegaserod was associated with improvements in patients' quality of life and work productivity. Data also indicate that tegaserod is well tolerated over the short-term (4 weeks), long-term (12 months), and repeated treatments. Diarrhea is the only adverse event consistently associated with tegaserod and was generally mild and transient. Overall, tegaserod has been demonstrated to offer effective and well-tolerated treatment of IBS-C, providing patients with meaningful symptom relief.
Background: In a subgroup of patients with atopic eczema (AE), aeroallergens are relevant eliciting factors. The atopy patch test (APT) was proposed as inflammation model for AE. Objective: It was the aim of this study to investigate the effect of pretreatment with 1% pimecrolimus cream (Elidel®) on the APT and skin prick test (SPT). Methods: In a randomized, controlled, double-blind study, 20 patients with AE and positive SPT and APT screening reaction to house dust mite Dermatophagoides pteronyssinus, cat dander, grass or birch pollen were enrolled (age 20 ± 11 years, 55% males). For 2 weeks, patients twice daily applied pimecrolimus and vehicle control to marked fields on their backs and forearms. Then, APT was performed (200 index of reactivity/g extracts in petrolatum; Stallergènes, France) on both fields on the back and SPT was performed on the pretreated forearms. Results: Including only patients with different readings (n = 13), stronger APT suppression of at least 1 ETFAD (European Task Force on Atopic Dermatitis) grade in the pimecrolimus area versus intraindividual control was observed in 10 of these patients after 48 and 72 h (p < 0.05; 90% CI 50.5–93.4). Including all 20 subjects, the analysis still showed a borderline significance compared with the vehicle (p = 0.0564). SPT with histamine and aeroallergens showed a median 7.5–10% reduction in actively pretreated areas (p = 0.086). Immunohistochemical analysis in 2 patients revealed an induction of interferon-γ in primecrolimus-pretreated skin. Conclusion: APT can be used as a model for AE skin inflammation. It was shown for the first time that pimecrolimus pretreatment has a potential to suppress the development of lesions induced by aeroallergen exposure in patients with AE.
Background: Tegaserod, a prokinetic 5-HT4 receptor agonist, has demonstrated efficacy and tolerability in irritable bowel syndrome (IBS) patients with constipation (IBS-C) in controlled clinical trials. Its use in primary care has not been investigated. Aim: To determine whether tegaserod is effective and well tolerated by primary care IBS-C patients. Methods: Patients received tegaserod 6 mg b.i.d. for 12 weeks and were assessed for response, abdominal pain/discomfort, bloating, stool consistency/frequency and straining at weeks 4 and 12. Previous successful treatment with the withdrawn drug, cisapride, was noted. A 9-month study extension was offered to patients completing 12 weeks of tegaserod treatment. Results: 212 patients entered the 12-week treatment period; 166 completed as planned. Response rates were 64.2% at week 4 and 70.3% at week 12. After 12 weeks, abdominal pain/discomfort and bloating were reduced from baseline (p < 0.0001; mean change –1.02 and –0.91 points, respectively), stool frequency increased (0.78–0.97 stools/day) and stool consistency improved (2.45–3.42; lumpy stools became softer). Tegaserod was well tolerated; the most common adverse events were headache (13.2%) and diarrhea (9.4%). One hundred and twenty patients entered the 9-month extension study, 85 completed and tegaserod continued to be well tolerated. Conclusions: In ambulatory primary care IBS-C patients, tegaserod is an effective and well-tolerated long-term treatment.
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