Evidence map›Paper›PMID 21476031›Full record

SynthesisDigestive diseases and sciences2011

Relapse rate following azathioprine withdrawal in maintaining remission for Crohn's disease: a meta-analysis.

Helen French, A Mark Dalzell, Ramesh Srinivasan, Wael El-Matary

Abstract readMeta-AnalysisReview
PubMed Publisher
In one paragraph

Synthesis in Digestive diseases and sciences, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Review
  14. Indian Society of Gastroenterology consensus statements on Crohn's disease in India.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2015
    Article
  15. Article
  16. Review
  17. Use of thiopurines in inflammatory bowel disease: Safety issues.World journal of gastrointestinal pharmacology and therapeutics · 2014
    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

4 authors.

Helen FrenchDivision of Paediatric Gastroenterology, Hepatology and Nutrition, Alder Hey Children's NHS Foundation Trust, Eaton Road, Liverpool, L12 2AP, UK.
A Mark Dalzell
Ramesh Srinivasan
Wael El-Matary

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe duration of use of azathioprine (Aza) and 6-mercaptopurine (6-MP) for maintaining remission for Crohn's disease is debatable.

aimTo examine whether Aza/6-MP can be safely withdrawn in patients with Crohn's disease who have been in remission.

methodsThe following databases were searched: MEDLINE (1950-September 2010), EMBASE (1980-September 2010), CINHAL (1981-September 2010), PubMed (1950-September 2010), and the Cochrane Central Register of Controlled Trials (CENTRAL). Randomised controlled and cohort studies comparing azathioprine continuation versus placebo or no treatment were eligible for inclusion. Primary outcomes were relapse rate after discontinuation of Aza/6-MP at 6, 12, and 18 months, and 5 and 10 years.

resultsFive studies, with 256 patients and 168 controls, met the inclusion criteria. Stopping azathioprine/6-MP was found to significantly increase the risk of relapse at 6, 12, and 18 months with pooled odds ratios of 0.22 (95% CI 0.09-0.53), 0.25 (95% CI 0.11-0.56), and 0.35 (95% CI 0.21-0.6), respectively. Two trials examined relapse rate at 5 years with pooled OR 0.53 (95% CI 0.13-2.21). No trials looking at relapse rates beyond 5 years were identified.

conclusionsThere is a clear benefit of continuing Aza/6-MP for at least 18 months to maintain remission for Crohn's disease patients who established remission. There is not enough evidence to provide clear guidance on whether or not to continue Aza/6-MP treatment beyond 18 months. Well-designed randomised controlled trials addressing this issue are needed.

Indexed as

Withholding TreatmentAzathioprineCrohn DiseaseHumansImmunosuppressive AgentsRandomized Controlled Trials as TopicRecurrenceRemission InductionTreatment OutcomeAzathioprineImmunosuppressive Agents

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.