A Multi-center, Single-arm Trial Exploring the Safety and Clinical Effectiveness of RBX2660 Administered by Colonoscopy to Adults With Recurrent Clostridioides Difficile Infection

Summary

This trial will be initiated to explore whether RBX2660 (REBYOTA®) could be suitable for administration by the practice of colonoscopy. More specifically, the purpose of this trial is to explore the safety and clinical effectiveness of RBX2660 when delivered by colonoscopy to adults with rCDI. The experience of physicians will be documented through a physician-experience questionnaire to explore the usability of RBX2660 in clinical practice for colonoscopic administration. Furthermore, to explore the patient-experience of RBX2660 treatment, each trial participant will be offered to undergo a structured interview.

Timeline

Start

2023-04-21

Primary completion

2025-01-17

Completion

2025-01-17

Publications

• Results Khanna S, Yoho D, Van Handel D, Clark BJ, Awad T, Guthmueller B, Armandi D, Knapple W, Safdar N, Baggott B, Simon K, Feuerstadt P. Safety and effectiveness of fecal microbiota, live-jslm (REBYOTA(R)) administered by colonoscopy for prevention of recurrent Clostridioides difficile infection: 8-week results from CDI-SCOPE, a single-arm, phase IIIb trial. Ther Adv Gastroenterol. 2025 Apr 22;18:17562848251339697. doi: 10.1177/17562848251339697. eCollection 2025.
• Results Khanna S, Yoho D, Van Handel D, Clark BJ, Awad T, Guthmueller B, Armandi D, Knapple W, Safdar N, Baggott B, Simon K, Feuerstadt P. Prevention of recurrent Clostridioides difficile infection by fecal microbiota, live-jslm (REBYOTA(R)) administered via colonoscopy: 6-month data from the single-arm phase IIIb CDI-SCOPE trial. Ther Adv Gastroenterol. 2025 Nov 9;18:17562848251396744. doi: 10.1177/17562848251396744. eCollection 2025.
• Results McCool-Myers M, Umanzor-Figueroa C, Symonds T, Landeira M, Awad T, Armandi D, Guthmueller B, Khanna S. Patient-reported benefits of colonoscopicallyadministered microbiota restoration therapy: a qualitative study of adult patients with recurrent Clostridioides difficile infection. Ther Adv Gastroenterol. 2025 Nov 14;18:17562848251392102. doi: 10.1177/17562848251392102. eCollection 2025.
• Chopra T, Van Handel D, Baggott B, Orenstein R, Reveles K, Guthmueller B, Srivastava S, Khanna S. Efficacy Outcomes of Fecal Microbiota, Live-jslm in Preventing Recurrent Clostridioides difficile Infection from Seven Clinical Studies. Infect Dis Ther. 2026 Aug;15(8):2071-2086. doi: 10.1007/s40121-026-01374-9. Epub 2026 Jun 12.

Drugs

Indications