Evidence map›Paper›PMID 17932752›Full record

SynthesisDigestive diseases and sciences2008

Exposing the weaknesses: a systematic review of azathioprine efficacy in ulcerative colitis.

Yvette Leung, Remo Panaccione, Brenda Hemmelgarn, Jennifer Jones

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Digestive diseases and sciences, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 9% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Indian Society of Gastroenterology consensus on ulcerative colitis.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2012
    Guideline
  2. Observational
  3. Review
  4. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Yvette LeungDivision of Gastroenterology and Hepatology, University of Calgary Health Sciences Centre, G 087, 3330 Hospital Drive, NW, Calgary, AB, Canada.
Remo Panaccione
Brenda Hemmelgarn
Jennifer Jones
University of Calgary · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPublished trials evaluating the efficacy of 6-thioguanine anti-metabolites in the treatment of ulcerative colitis (UC) have yielded conflicting results. We performed a systematic review and meta-analysis to evaluate the clinical efficacy of 6-thioguanine anti-metabolites for the maintenance of clinical remission after standard induction with corticosteroids.

methodsA comprehensive search of online databases was conducted. Only randomized controlled trials with 6-thioguanine antimetabolites within a minimum duration of follow-up of 6 months were selected.

resultsFive trials were included in the meta-analysis. The pooled relative risk estimate for "success of treatment" with azathioprine (AZA) compared to 5-aminosalicylic acid or placebo was 1.42 [95% confidence interval (CI): 0.93-2.17, p = 0.109]; when only trials of a higher quality were used, a pooled relative risk estimate of 2.05 (95% CI: 1.30-3.23, p = 0.002) was obtained.

conclusionsPooled results demonstrated a modest efficacy of AZA for the treatment of ulcerative colitis. However, the use of AZA for the management of UC is not based on high-quality evidence.

Indexed as

AntimetabolitesAzathioprineColitis, UlcerativeEvidence-Based MedicineHumansMercaptopurineRandomized Controlled Trials as TopicAntimetabolitesAzathioprineMercaptopurine

Identifiers

PMID17932752
OpenAlexW2006767730

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.