Optimal dose of ramosetron in female patients with irritable bowel syndrome with diarrhea: A randomized, placebo-controlled phase II study.
Neurogastroenterol Motil
; 29(6)2017 Jun.
Article
em En
| MEDLINE
| ID: mdl-28205278
ABSTRACT
BACKGROUND:
Previous studies showed that 5 µg of ramosetron, a serotonin (5-hydroxytryptamine 5-HT)-3 receptor antagonist, is only effective in male patients with irritable bowel syndrome (IBS) with diarrhea (IBS-D). We hypothesized that either dose 1.25, 2.5, or 5 µg of ramosetron would be effective in female patients with IBS-D.METHODS:
This randomized, double-blind, placebo-controlled, phase II dose-finding exploratory trial included 409 female outpatients with IBS-D treated in Japan. They were administered oral placebo (n=102), or 1.25 µg (n=104), 2.5 µg (n=104), or 5 µg (n=99) of ramosetron once daily for 12 weeks after a 1-week baseline period. The primary endpoint was monthly responder rates of global improvement of IBS symptoms in the first month. Secondary endpoints included global improvement in the other months, abdominal pain/discomfort, weekly mean changes in the Bristol Stool Form Scale (BSFS), and IBS-QOL. KEYRESULTS:
Middle dose (2.5 µg) of ramosetron significantly improved abdominal pain/discomfort at second month (62.5%, P=.002), third month (60.6%, P=.005), and the last evaluation point (63.5%, P=.002) and weekly BSFS (P<.05) except at Week 8, 11, and 12 than placebo. IBS-QOL did not change. Ramosetron induced more constipation than placebo. CONCLUSIONS & INFERENCES The trial suggested that 2.5 µg of ramosetron is the most effective and least harmful option for treating female patients with IBS-D (Clinicaltrials.gov ID NCT01274000).Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
1_ASSA2030
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2_ODS3
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3_ND
Base de dados:
MEDLINE
Assunto principal:
Antagonistas da Serotonina
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Benzimidazóis
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Síndrome do Intestino Irritável
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Diarreia
Tipo de estudo:
Clinical_trials
Limite:
Adult
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Female
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Humans
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Middle aged
Idioma:
En
Revista:
Neurogastroenterol Motil
Ano de publicação:
2017
Tipo de documento:
Article