Related Experiment Video
Updated: Oct 26, 2025

Fecal Microbiota Transplantation via Colonoscopy for Recurrent C. difficile Infection
Published on: December 8, 2014
Fidaxomicin as a Salvage Therapy for Fulminant Clostridioides difficile Infection
Caio T Heleno1, Aleksey Tagintsev1, Katharine Lasley1
1Internal Medicine, MercyOne North Iowa Medical Center, Mason City, USA.
Abstract:
Few studies have demonstrated the efficacy of fidaxomicin in the treatment of fulminant C lostridi oides difficile infection (CDI). Fidaxomicin has been used as part of the standard treatment for nonsevere and severe CDI according to the guidelines by the Infectious Diseases Society of America and the Society for Healthcare Epidemiology of America, but not in severe fulminant CDI due to lack of randomized clinical trials supporting its use. We present the case of a patient who developed severe fulminant colitis initially refractory to treatment with oral vancomycin and intravenous metronidazole that had an impressive improvement within 24-hour of starting fidaxomicin. The patient had a complete resolution of the symptoms at the end of the therapy without requiring a surgical approach. There are few case reports of fulminant CDI treated with fidaxomicin as a salvage therapy for fulminant CDI. In this challenging scenario, information about the use of fidaxomicin is still limited and more clinical trials are needed to support its widespread use.
Insights
Fidaxomicin shows promise in treating severe, fulminant Clostridioides difficile infection (CDI) when standard treatments fail. This case report highlights its potential as a salvage therapy for refractory cases, leading to symptom resolution.
Area of Science:
- Infectious Diseases
- Microbiology
- Gastroenterology
Background:
- Clostridioides difficile infection (CDI) guidelines recommend fidaxomicin for nonsevere and severe cases.
- Its use in fulminant CDI is limited due to a lack of supporting randomized clinical trials.
Observation:
- A patient with severe fulminant colitis, refractory to vancomycin and metronidazole, was treated with fidaxomicin.
- The patient experienced significant improvement within 24 hours of initiating fidaxomicin therapy.
Findings:
- Fidaxomicin demonstrated impressive efficacy as a salvage therapy in a case of severe fulminant CDI.
- Complete symptom resolution was achieved without surgical intervention.
Implications:
- This case suggests fidaxomicin may be a valuable option for refractory fulminant CDI.
- Further clinical trials are warranted to establish its widespread use in this critical condition.
Related Concept Videos
Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents
Drugs for Treatment of Ulcerative Colitis in IBD
Drugs for Treatment of Diarrhea-Predominant IBS
Two specific drugs used in the treatment are alosetron (Lotronex) and eluxadoline (Viberzi). Alosetron, a 5-HT3 antagonist, works by slowing the movement of stools in the gut, reducing bowel...
Inflammatory Bowel Disease IV: Pharmacological Management
Pharmacologic...
Drugs for Treatment of Crohn's Disease in IBD Using Glucocorticoids
Drugs Affecting GI Tract Motility: Antimicrobials as Antidiarrheal Agents

