Relapse rates high in IBD patients who stop treatment

Reuters Health Information: Relapse rates high in IBD patients who stop treatment

Relapse rates high in IBD patients who stop treatment

Last Updated: 2015-09-25

By Megan Brooks

NEW YORK (Reuters Health) - Inflammatory bowel disease (IBD) patients who achieve remission on treatment may want to go off their IBD medications. But half or more of those who do will have a relapse, according to comprehensive analysis of relevant research.

"Based on the studies with extended periods of follow-up, relapse rates after cessation appear high across all therapeutic classes suggesting that complete discontinuation in the long-term may only be feasible in select patients," the authors concluded.

"The decision to withdraw a drug should be made for each individual based on patient preference, disease markers, consequences of relapse, safety, and cost," they wrote in Gastroenterology online September 14.

"One of the most common questions confronted by clinicians is whether therapy with immunosuppressive drugs and biologics should be stopped or dose reduced once remission is achieved in IBD," Dr. Ray Boyapati, of Western General Hospital in Edinburgh, United Kingdom, and Dr. Joana Torres, of the Icahn School of Medicine at Mount Sinai in New York City, who spearheaded the analysis, said in a joint email to Reuters Health.

"This is often considered due to concerns about long term safety, side effects, costs and national regulations. This analysis was an attempt to review all the available evidence and provide clinicians with guidance on this important question," they said.

Drs. Boyapati and Torres and their colleagues analyzed findings from 69 relevant studies involving a total of 4672 patients with IBD. Eighteen studies focused on de-escalation (drug cessation or dose reduction) of immunomodulator monotherapy, eight focused on immunomodulator de-escalation from combination therapy, and 43 on de-escalation of anti-tumor necrosis factor (anti-TNF) agents.

"Stopping immunomodulator monotherapy after a period of remission was associated with high rates of relapse in patients with Crohn's disease or ulcerative colitis (around 75% relapse by 5 years after therapy was stopped)," the research team reports.

"Most studies of patients with Crohn's disease who discontinued the immunomodulator after combination therapy found that rates of relapse did not differ from those of patients who continued taking the drug (55%-60% had disease relapse 24 months after they stopped taking the immunomodulator)," they note. The single study looking at patients with ulcerative colitis favors continued immunomodulator therapy.

According to their analysis, only about half of patients who discontinue anti-TNF agents after combination therapy are still in remission 24 months later, but the proportion in remission drops with time.

"In the studies with long-term follow up, relapse rates after cessation appear high across all therapeutic classes," Drs. Boyapati and Torres told Reuters Health.

"However, there seem to be subgroups of patients who are more likely to maintain remission; the challenge for future research in this area will be to accurately identify who these patients are. Markers of disease activity, poor prognostic factors, and complicated or relapsing disease course were associated with more frequent relapse in the studies included in this review, but most of them are retrospective studies or post-hoc analysis of clinical trials," they said.

Their analysis found that studies in pregnant women with IBD suggest that a short drug holiday is not associated with high rates of relapse or loss of response upon restarting drug therapy.

Do the findings call for any change in current clinical practice?

"Our view is that, based on the current evidence, discontinuation of therapy in patients with IBD needs to be a personalized decision based on a number of factors, including patients preference. This review highlights the need for prospective and controlled trials in this area, some of which are already in progress such as the Biocycle project (http://biocycle-project.eu/), " Drs. Boyapati and Torres said.

The authors reported no disclosures.

SOURCE: http://bit.ly/1izeWlY

Gastroenterol 2015.

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