Abstract
Background
Acotiamide is widely used to improve symptoms in patients with functional dyspepsia (FD) in multiple large-scale clinical studies, but there are few reports about the drug’s mechanism of action. The aim of this study was to assess the effects of acotiamide on gastric accommodation and gastric emptying, gastrointestinal symptoms, and health-related quality of life (HR-QOL) in a placebo-controlled study.
Methods
We conducted a randomized, double-blind placebo-controlled study. Fifty Japanese FD patients were randomly assigned to either placebo (n = 25) or acotiamide 100 mg × 3/day for 2 weeks (n = 25). At baseline and at 2 weeks of treatment, we evaluated the patients’ gastric motility using scintigraphy to determine the accommodation and emptying values, gastrointestinal symptom rating scale (GSRS), HR-QOL (SF-8), and anxiety and depression scale (HADS).
Results
Four patients failed to complete the medication regimen and were omitted from analysis; data from 24 placebo patients and 22 acotiamide patients were analyzed. Acotiamide significantly increased gastric accommodation compared to the placebo (p = 0.04 vs. p = 0.08; respectively). Acotiamide significantly accelerated gastric emptying (50 % half-emptying time) (p = 0.02 vs. p = 0.59). Acotiamide significantly improved the total GSRS scores compared to placebo (p = 0.0007 vs. p = 0.14). HR-QOL did not differ significantly between the two groups, but acotiamide significantly improved the HADS anxiety score compared to placebo (p = 0.04 vs. p = 0.20).
Conclusions
Our placebo-controlled study demonstrated that acotiamide significantly increased both gastric accommodation and gastric emptying in Japanese FD patients. Acotiamide also improved the patients’ dyspeptic symptoms and anxiety score.
Clinical Trials Registry no: UMIN000013544.
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Change history
25 January 2021
A Correction to this paper has been published: https://doi.org/10.1007/s00535-020-01758-9
Abbreviations
- FD:
-
Functional dyspepsia
- HR-QOL:
-
Health-related quality of life
- GSRS:
-
Gastrointestinal symptom rating scale
- HADS:
-
Anxiety and depression scale
- PDS:
-
Postprandial distress syndrome
- PF:
-
Physical functioning
- RP:
-
Role physical
- BP:
-
Bodily pain
- GH:
-
General health
- VT:
-
Vitality
- SF:
-
Social functioning
- RE:
-
Role emotional
- MH:
-
Mental health
- PCS:
-
Physical component summary
- MCS:
-
Mental component summary
- AchE:
-
Acetylcholinesterase
- Ach:
-
Acethlcholine
- US:
-
Ultrasonography
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Acknowledgments
Toshihiko Tomita and Hiroto Miwa contributed to the concept and design of the study. Kumiko Nakamura and Toshihiko Tomita were involved in data acquisition and analysis. All authors contributed to data interpretation and critically reviewed the manuscript for important intellectual contents. All authors approved the final version of the manuscript. Tadayuki Oshima provided statistical design. Jiro Watari and Hiroto Miwa coordinated acquisition of data and trial supervision. This study was funded by Astellas Pharma Inc. and Zeria Pharmaceutical Co., Ltd. Tokyo, Japan.
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Nakamura, K., Tomita, T., Oshima, T. et al. A double-blind placebo controlled study of acotiamide hydrochloride for efficacy on gastrointestinal motility of patients with functional dyspepsia. J Gastroenterol 52, 602–610 (2017). https://doi.org/10.1007/s00535-016-1260-7
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DOI: https://doi.org/10.1007/s00535-016-1260-7