Evidence map›Paper›PMID 34426870›Full record

SynthesisJournal of gastroenterology2021

The clinical efficacy of azathioprine as maintenance treatment for autoimmune pancreatitis: a systematic review and meta-analysis.

Yoshiharu Masaki, Hiroshi Nakase, Yoshihisa Tsuji, Masanori Nojima, Kyoko Shimizu, Nobumasa Mizuno, Tsukasa Ikeura, Kazushige Uchida, Akio Ido, Yuzo Kodama and 4 more

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of gastroenterology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.2field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Management of IgG4-Related Disease.Current rheumatology reports · 2026
    Review
  5. Autoimmune Pancreatitis Re-Classification with Novel Type AIP-4.International journal of molecular sciences · 2026
    Review
  6. Observational
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Autoimmune Pancreatitis: From Pathogenesis to Treatment.International journal of molecular sciences · 2022
    Review
  17. Review
  18. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 11 institutions in 1 country.

Yoshiharu MasakiDepartment of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, S-1, W-16, Chuo-ku, Sapporo, Hokkaido, 060-8543, Japan.
Hiroshi NakaseDepartment of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, S-1, W-16, Chuo-ku, Sapporo, Hokkaido, 060-8543, Japan. hiropynakase@gmail.com.ORCID 0000-0003-2848-6586
Yoshihisa TsujiDepartment of General Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan.
Masanori NojimaCenter for Translational Research, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
Kyoko ShimizuInstitute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan.
Nobumasa MizunoDepartment of Gastroenterology, Aichi Cancer Center Hospital, Nagoya, Japan.
Tsukasa IkeuraThe Third Department of Internal Medicine, Kansai Medical University, Hirakata, Japan.
Kazushige UchidaDepartment of Gastroenterology and Hepatology, Kochi Medical School, Kochi University, Nankoku, Japan.
Akio IdoDigestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan.
Yuzo KodamaDepartment of Gastroenterology, Kobe University, Kobe, Japan.
Hiroshi SenoDepartment of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Kazuichi OkazakiKansai Medical University Kori Hospital, Neyagawa, Japan.
Seiji NakamuraSection of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan.
Atsushi MasamuneDivision of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Sapporo Medical University · JPKansai Medical University · JPAichi Cancer Center · JPKagoshima University · JPKobe University · JPKōchi University · JPKyoto University · JPKyushu University · JPThe University of Tokyo · JPTohoku University · JPTokyo Women's Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The effectiveness of azathioprine (AZA) in preventing relapse and maintaining autoimmune pancreatitis (AIP) remission has been reported; however, most of these studies are case series with no randomized control trials available in the literature. Therefore, this study performed a systematic review and meta-analysis of the existing literature on this subject to determine the clinical efficacy of AZA as maintenance therapy for AIP patients. A systematic search was performed to identify studies on the clinical efficacy of AZA as maintenance therapy in AIP patients. The crude multiple relapse rate was estimated to assess the ability of AZA to control relapses in AIP. Pooled estimates were obtained using a random-effects model with the DerSimonian-Laird method. We identified AIP patients who did not respond to initial steroid treatment, experienced steroid weaning failure, or those who relapsed during remission as refractory cases. After reviewing the studies, ten articles fulfilled the inclusion criteria and were selected for meta-analysis. Of all 4504 patients, 3534 patients were treated with steroids, and 346 patients were treated with AZA for relapsed AIP. In this meta-analysis, 14/73 (19.2%) patients receiving AZA for refractory AIP relapsed. Meanwhile, 14/47 (29.8%) patients without AZA experienced relapse. The integrated odds ratio for relapse risk in patients receiving AZA was estimated to be 0.52 (p = 0.15). This systematic review and meta-analysis demonstrated the efficacy of AZA in preventing relapse of AIP, which supports the use of AZA as a maintenance treatment in patients with AIP who relapse upon withdrawal of steroid therapy.

Indexed as

Autoimmune PancreatitisAzathioprineHumansImmunosuppressive AgentsRemission InductionTreatment OutcomeAzathioprineImmunosuppressive AgentsAutoimmune pancreatitisAZAMeta-analysisRelapseSteroid

Identifiers

PMID34426870
PMCPMC8382580
OpenAlexW3193677297

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.