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Short- and long-term response to and weaning from infliximab therapy in pediatric ulcerative colitis
Gary Fanjiang1, George H Russell, Aubrey J Katz
1Department of Pediatric Gastroenterology & Nutrition, Massachusetts General Hospital for Children, Boston 02114, USA. gfanjiang@partners.org
Insights
Infliximab effectively treated pediatric ulcerative colitis (UC) in acutely ill patients, with some able to discontinue treatment. However, response was less favorable in chronically ill, steroid-dependent UC patients.
Area of Science:
- Pediatric Gastroenterology
- Immunology
- Inflammatory Bowel Disease
Background:
- Ulcerative colitis (UC) is a chronic inflammatory bowel disease affecting children.
- Treatment options for pediatric UC include steroids and biologics like infliximab.
- Evaluating infliximab's efficacy and long-term outcomes in pediatric UC is crucial.
Purpose of the Study:
- To assess infliximab response in pediatric ulcerative colitis patients.
- To evaluate long-term follow-up and success of infliximab weaning.
- To compare outcomes in acutely versus chronically ill pediatric UC patients.
Main Methods:
- Retrospective chart review of 27 pediatric UC patients treated with infliximab.
- Classification of patients into acutely ill (n=16) and chronically ill (n=11) groups.
- Assessment of disease activity using the Lichtiger Colitis Activity Index (LCAI) at baseline and 1-2 months.
Main Results:
- Acutely ill patients showed significant LCAI reduction (11.4 to 0.3) vs. chronically ill (11.2 to 5.5).
- Infliximab success rates were 75% in acutely ill and 27% in chronically ill patients.
- 80% of successfully treated patients were weaned off infliximab, with a mean follow-up of 10 months.
Conclusions:
- Infliximab demonstrates higher efficacy in acutely ill pediatric UC patients compared to chronically ill, steroid-dependent patients.
- Successful infliximab treatment allows for potential weaning, maintaining remission in select pediatric UC cases.
- Long-term follow-up indicates sustained remission is possible after infliximab discontinuation in some patients.
Objectives:
We evaluated the response to infliximab in pediatric patients with ulcerative colitis (UC) and their long-term follow-up. We expanded our previous study of 14 patients and furthermore evaluated the success of weaning patients from infliximab.
Patients And Methods:
We reviewed the charts of 27 pediatric patients with UC who were treated with infliximab instead of undergoing a colectomy. Patients with new-onset UC refractory to intravenous steroids for 5 to 10 days and patients with non-steroid-dependent UC with an acute exacerbation were classified as acutely ill (n = 16); patients with chronic steroid-dependent UC were classified as chronically ill (n = 11). The Lichtiger Colitis Activity Index (LCAI) was measured for all patients at baseline and at 1 and 2 months after treatment with infliximab was initiated. Patients were regarded as successfully treated if they remained off steroids and avoided colectomy.
Results:
The acutely ill group had a mean LCAI score of 11.4 at induction and 0.3 after 2 months. The chronically ill group had a mean LCAI score of 11.2 at induction and 5.5 after 2 months. Treatment with infliximab was successful in 75% of acutely ill patients and in 27% of chronically ill patients. Infliximab was discontinued in 80% of successfully treated patients (83% of acutely ill, 67% of chronically ill). These patients had an average of 10 infusions and a mean follow-up time of 10 months from their last infliximab infusion.
Conclusions:
Our results suggest that infliximab is more effective in acutely ill UC patients than in patients with chronic steroid-dependent UC. In addition, some patients treated with infliximab can be weaned from infliximab and maintain remission.
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