Investigational treatment options in microscopic colitis

Area of Science:

• Gastroenterology
• Inflammatory Bowel Disease
• Colonic Diseases

Background:

• Microscopic colitis, encompassing collagenous and lymphocytic colitis, is characterized by chronic watery diarrhea.
• Diagnosis relies on histology due to a lack of endoscopic abnormalities.
• Epidemiological data suggest prevalence comparable to Crohn's disease and ulcerative colitis.

Purpose of the Study:

• To review the current understanding of microscopic colitis.
• To discuss therapeutic options for symptom management and remission.
• To highlight the need for further research into long-term treatment strategies.

Main Methods:

• Review of current epidemiological studies and clinical evidence.
• Analysis of diagnostic criteria and histological findings.
• Evaluation of existing and emerging therapeutic interventions.

Main Results:

• Oral budesonide demonstrates efficacy in achieving and maintaining remission in microscopic colitis.
• Mesalazine and bismuth subsalicylate are under investigation as alternative treatments.
• The etiology of microscopic colitis remains unknown, with a hypothesis of fecal stream-induced mucosal injury.

Conclusions:

• Microscopic colitis is a significant condition presenting with chronic diarrhea.
• Budesonide is a key treatment for remission, but optimal long-term management is still undetermined.
• Further research is essential to elucidate the cause and refine long-term therapeutic approaches.