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Corrigendum
Corrigendum: Randomized, crossover questionnaire survey of acceptabilities of controlled-release mesalazine tablets and granules in ulcerative colitis patients
Keiji Yagisawa, Taku Kobayashi, Ryo Ozaki, Shinji Okabayashi, Takahiko Toyonaga, Miki Miura, Mari Hayashida, Eiko Saito, Masaru Nakano, Hajime Matsubara, Tadakazu Hisamatsu, Toshifumi Hibi
Intest Res 2020;18(3):343-344.   Published online July 20, 2020
DOI: https://doi.org/10.5217/ir.2018.00078-c1
Corrects: Intest Res 2019;17(1):87
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Original Article
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Randomized, crossover questionnaire survey of acceptabilities of controlled-release mesalazine tablets and granules in ulcerative colitis patients
Keiji Yagisawa, Taku Kobayashi, Ryo Ozaki, Shinji Okabayashi, Takahiko Toyonaga, Miki Miura, Mari Hayashida, Eiko Saito, Masaru Nakano, Hajime Matsubara, Tadakazu Hisamatsu, Toshifumi Hibi
Intest Res 2019;17(1):87-93.   Published online December 14, 2018
DOI: https://doi.org/10.5217/ir.2018.00078
Correction in: Intest Res 2020;18(3):343
AbstractAbstract PDFPubReaderePub
Background/Aims
Oral mesalazine is an important treatment for ulcerative colitis (UC), and non-adherence to mesalazine increases the risk of relapse. Controlled-release (CR) mesalazine has 2 formulations: tablets and granules. The relative acceptabilities of these formulations may influence patient adherence; however, they have not been compared to date. This study aimed to evaluate the acceptabilities of the 2 formulations of CR mesalazine in relation to patient adherence using a crossover questionnaire survey.
Methods
UC patients were randomly assigned to 2 groups in a 1:1 ratio. Patients in each group took either 4 g of CR mesalazine tablets or granules for 6 to 9 weeks, and then switched to 4 g of the other formulation for a further 6 to 9 weeks. The acceptability and efficacy were evaluated by questionnaires, and adherence was assessed using a visual analog scale. The difference in acceptabilities between the 2 formulations and its impact on adherence were assessed.
Results
A total of 49 patients were prospectively enrolled and 33 patients were included in the analysis. Significantly more patients found the tablets to be less acceptable than the granules (76% vs. 33%, P=0.0005). The granules were preferable to the tablets when the 2 formulations were compared directly (73% vs. 21%, P=0.004), for their portability, size, and numbers of pills. The adherence rate was slightly better among patients taking the granules (94% vs. 91%) during the observation period, but the difference was not significant (P=0.139).
Conclusions
CR mesalazine granules are more acceptable than tablets, and may therefore be a better option for long-term medication.

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