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 21 February 2018

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News

Anti-TNF treatment in Crohn's disease and risk of bowel resection

A study published ahead of print in the Alimentary Pharmacology & Therapeutics evaluates the association between anti-TNF treatment in Crohn's disease and risk of bowel resection.

News image

TNF inhibitors (TNFi) have been shown to reduce the need for surgery in Crohn's disease, but few studies have examined their effect beyond the first year of treatment.

Professor Michael Eberhardson and colleagues from Sweden conducted a register-based observational cohort study in Sweden 2006-2014 to investigate the risk of bowel resection in bowel surgery naÔve TNFi-treated Crohn's disease patients and whether patients on TNFi ≥12 months are less likely to undergo bowel resection than patients discontinuing treatment before 12 months.

The researchers identified all individuals in Sweden with Crohn's disease through the Swedish National Patient Register 1987-2014, and evaluated the incidence of bowel resection after first ever dispensation of adalimumab or infliximab from 2006 and up to 7 years follow-up.

The team identified 1856 Crohn's disease patients who had received TNFi.

The cumulative rates of surgery in Crohn's disease patients exposed to TNFi years for 7 were 28%
Alimentary Pharmacology & Therapeutics

Among these patients, the team noted that 90% treatment retention was observed at 6 months after start of TNFi, and 65% remained on the drug after 12 months.

The cumulative rates of surgery in Crohn's disease patients exposed to TNFi years 1-7 were 7%, 13%, 17%, 20%, 23%, 25% and 28%.

Rates of bowel resection were similar between patients with TNFi survival <12 months and ≥12 months respectively.

The research team found no predictors for bowel resection were identified.

Professor Eberhardson's team concluded, "The risk of bowel resection after start of anti-TNF treatment is higher in regular health care than in published randomized controlled trials."

"Patients on sustained TNFi treatment beyond 12 months have bowel resection rates similar to those who discontinue TNFi treatment earlier."

APT 2017      
01 August 2017

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