Volume 38, Issue 1 pp. 52-60
Original Article - Gastroenterology (Clinical)

Thiopurine naivety at tacrolimus induction is a predictor of long-term remission in patients with intractable ulcerative colitis who responded to tacrolimus

Noritaka Takatsu

Noritaka Takatsu

Inflammatory bowel disease center, Fukuoka University Chikushi Hospital, Fukuoka, Japan

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Takashi Hisabe

Takashi Hisabe

Inflammatory bowel disease center, Fukuoka University Chikushi Hospital, Fukuoka, Japan

Department of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan

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Masahiro Kishi

Masahiro Kishi

Inflammatory bowel disease center, Fukuoka University Chikushi Hospital, Fukuoka, Japan

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Teruyuki Takeda

Teruyuki Takeda

Inflammatory bowel disease center, Fukuoka University Chikushi Hospital, Fukuoka, Japan

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Shigeyoshi Yasukawa

Shigeyoshi Yasukawa

Inflammatory bowel disease center, Fukuoka University Chikushi Hospital, Fukuoka, Japan

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Akihiro Koga

Akihiro Koga

Department of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan

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Ken Kinjo

Ken Kinjo

Department of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan

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Fumihito Hirai

Corresponding Author

Fumihito Hirai

Department of Gastroenterology, Fukuoka University Faculty of Medicine, Fukuoka, Japan

Correspondence

Fumihito Hirai, Department of Gastroenterology, Fukuoka University Faculty of Medicine, 7-45-1 Nanakuma, Jonan-ku, Fukuoka City, Fukuoka 814-0180, Japan.

Email: [email protected]

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Toshiharu Ueki

Toshiharu Ueki

Department of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan

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Kenshi Yao

Kenshi Yao

Department of Endoscopy, Fukuoka University Chikushi Hospital, Fukuoka, Japan

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First published: 21 September 2022
Citations: 1

Abstract

Background

The short-term efficacy of tacrolimus (Tac) for steroid-dependent and steroid-resistant refractory ulcerative colitis (UC) has been demonstrated; however, its long-term outcomes have not been well documented. Thus, this study aimed to clarify the long-term outcomes of patients who achieved Tac-induced remission and identify its predictors.

Methods

This study included patients with moderate-to-severe active UC who started receiving Tac at our hospital between July 2004 and December 2016. Short-term treatment response was assessed using the Lichtiger index 3 months after starting Tac, and responding patients were further followed up to assess long-term outcomes. The primary endpoint was the relapse-free survival after Tac-induced remission, and the secondary endpoint was the identification of factors associated with relapse after Tac-induced remission.

Results

The cumulative relapse-free survival rate at 10 years after Tac-induced remission was 33.2%. Multivariate analysis revealed that being thiopurine naïve at Tac induction was associated with the absence of relapse (hazard ratio: 0.45; 95% confidence interval: 0.22–0.92).

Conclusions

Approximately one-third of patients who achieved Tac-induced remission maintained long-term remission. Being thiopurine naïve at Tac induction was a predictor of the absence of relapse.

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