Combination of oral antibiotics may be effective in severe pediatric ulcerative colitis: a preliminary report

Area of Science:

• Pediatric Gastroenterology
• Microbiome Research
• Inflammatory Bowel Disease

Background:

• Oral antibiotics may be more effective for ulcerative colitis (UC).
• Previous studies suggest varied antibiotic efficacy in UC treatment.
• Refractory pediatric UC often requires novel therapeutic approaches.

Purpose of the Study:

• To evaluate the efficacy of a 3-4 antibiotic combination (MADoV) in children with moderate-severe refractory UC and IBD-unclassified.
• To assess the clinical response to an oral antibiotic cocktail in pediatric patients with severe, treatment-resistant colitis.
• To report on the use of metronidazole, amoxicillin, doxycycline, and vancomycin (if applicable) in refractory pediatric IBD.

Main Methods:

• Retrospective, multicenter study including 15 children treated in 2013.
• Administered a 2-3 week oral antibiotic cocktail (MADoV), with substitutions for younger children or allergies.
• Assessed treatment response weekly using Pediatric Ulcerative Colitis Activity Index (PUCAI) and C-reactive protein (CRP).

Main Results:

• The antibiotic cocktail was effective in 47% (7/15) of children achieving complete clinical remission (PUCAI<10).
• An additional 20% (3/15) showed questionable or partial short-term response, totaling 67% with some benefit.
• All 15 patients had moderate-to-severe disease refractory to multiple immunosuppressants, including anti-TNF therapy.

Conclusions:

• A wide-spectrum oral antibiotic cocktail shows potential as a salvage therapy for pediatric UC refractory to other treatments.
• Approximately half of the treated pediatric patients achieved remission, indicating a promising therapeutic avenue.
• A pediatric randomized controlled trial is planned to further evaluate this antibiotic intervention.