Evidence map›Paper›PMID 25284134›Full record

ArticleAlimentary pharmacology & therapeutics2014

Thiopurine withdrawal during sustained clinical remission in inflammatory bowel disease: relapse and recapture rates, with predictive factors in 237 patients.

N A Kennedy, R Kalla, B Warner, C J Gambles, R Musy, S Reynolds, R Dattani, H Nayee, R Felwick, R Harris and 16 more

Open access · hybridAbstract readMulticenter Study
In one paragraph

Article in Alimentary pharmacology & therapeutics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
7.0field-weighted citation impact, top 3% 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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 65 citations in OpenAlex.

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  20. De-escalation of Therapy in Inflammatory Bowel Disease.Current gastroenterology reports · 2018
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

26 authors at 11 institutions in 1 country.

N A KennedyGastrointestinal Unit, Western General Hospital, Edinburgh, UK.
R Kalla
B Warner
C J Gambles
R Musy
S Reynolds
R Dattani
H Nayee
R Felwick
R Harris
S Marriott
S M Senanayake
C A Lamb
H Al-Hilou
D R Gaya
P M Irving
J Mansfield
M Parkes
T Ahmad
J R F Cummings
I D Arnott
J Satsangi
A J Lobo
M Smith
J O Lindsay
C W Lees
Western General Hospital · GBBarts Health NHS Trust · GBSouthampton General Hospital · GBAddenbrooke's Hospital · GBGuy's and St Thomas' NHS Foundation Trust · GBRoyal Hallamshire Hospital · GBRoyal Sussex County Hospital · GBUniversity of Exeter · GBGlasgow Royal Infirmary · GBNewcastle University · GBRoyal Victoria Infirmary · GB

Funding

Chief Scientist Office CZB/4/540Chief Scientist Office ETM/137Chief Scientist Office ETM/75Medical Research Council G0600329Medical Research Council G0800675Wellcome Trust 093885/Z/10/ZWellcome Trust 097943
6 · The paper itself

Abstract

backgroundThiopurines (azathioprine and mercaptopurine) remain integral to most medical strategies for maintaining remission in Crohn's disease (CD) and ulcerative colitis (UC). Indefinite use of these drugs is tempered by long-term risks. While clinical relapse is noted frequently following drug withdrawal, there are few published data on predictive factors.

aimTo investigate the success of planned thiopurine withdrawal in patients in sustained clinical remission to identify rates and predictors of relapse.

methodsThis was a multicentre retrospective cohort study from 11 centres across the UK. Patients included had a definitive diagnosis of IBD, continuous thiopurine use ≥3 years and withdrawal when in sustained clinical remission. All patients had a minimum of 12 months follow-up post drug withdrawal. Primary and secondary end points were relapse at 12 and 24 months respectively.

results237 patients were included in the study (129 CD; 108 UC). Median duration of thiopurine use prior to withdrawal was 6.0 years (interquartile range 4.4-8.4). At follow-up, moderate/severe relapse was observed in 23% CD and 12% UC patients at 12 months, 39% CD and 26% UC at 24 months. Relapse rate at 12 months was significantly higher in CD than UC (P = 0.035). Elevated CRP at withdrawal was associated with higher relapse rates at 12 months for CD (P = 0.005), while an elevated white cell count was predictive at 12 months for UC (P = 0.007).

conclusionThiopurine withdrawal in the context of sustained remission is associated with a 1-year moderate-to-severe relapse rate of 23% in Crohn's disease and 12% in ulcerative colitis.

Indexed as

Colitis, UlcerativeCrohn DiseaseAdultAzathioprineC-Reactive ProteinFemaleHumansImmunosuppressive AgentsMaleMercaptopurineMiddle AgedRecurrenceRetrospective StudiesRisk FactorsAzathioprineC-Reactive ProteinImmunosuppressive AgentsMercaptopurine

Identifiers

PMID25284134
PMCPMC4232866
OpenAlexW2139792815

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Registered trials

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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.