Evaluation of the infliximab therapy of severe form of pediatric Crohn's disease in Poland: Retrospective, multicenter studies.

Background: Registration of infliximab in Poland has increased chances to induce clinical remission and mucosal healing in the severe form of pediatric Crohn's disease.

Objectives: The aim of this retrospective study was to assess the results and safety of infliximab therapy in the severe form of pediatric Crohn's disease.

Material And Methods: The study included 153 children with severe form of non-fistulizing Crohn's disease treated with infliximab. The clinical activity of Crohn's disease was assessed according to PCDAI scale, endoscopic scoring was graded according to SES-CD, body mass was measured with body mass index (BMI). Infliximab was administered at the dose 5 mg/kg body mass in the 0.2 and 6th week, and then, after clinical response, every 8 for the period of 12 months.

Results: One hundred thirty-six children (88.89%) achieved clinical response after induction therapy and 75.21% of children after the maintenance therapy. 39.68% of children achieved remission as graded with endoscopic scoring SES-CD. There was a statistically significant increase in body weight following the treatment. Side effects such as anaphylaxis, rash, and the activation of EBV infection appeared in 9 children at the time of infliximab injection. In other children the drug was well tolerated.

Conclusions: Induction and maintenance therapy with infliximab resulted in clinical remission of Crohn's disease in 75.21% of children, and in the intestinal mucosa healing in 39.68% of children.