Study of the Clinical Effectiveness of a Human Monoclonal Antibody to C. Difficile Toxin A and Toxin B in Patients With Clostridium Difficile Associated Disease

Summary

Patients with Clostridium difficile associated disease who fulfill the eligibility criteria will be approached to participate. All study patients must receive standard of care treatment for Clostridium difficile associated disease. Enrolled patients will be randomized to receive a single intravenous solution of a human monoclonal antibody (huMab) to C. difficile toxin A (GS-CDA1) combined with a human monoclonal antibody to C. difficile toxin B (MDX-1388) or 0.9% sodium chloride as placebo in a 1:1 treatment allocation. Patients will be evaluated for safety and clinical outcomes through day 84 +/- 10 days. Occurrence of adverse events, use of concomitant medications, and stool output will be assessed at scheduled phone contacts and study visits. Some patients enrolled will have a subsequent visit on day 168 ± 14 days.

Timeline

Start

2006-07-20

Primary completion

2008-06-25

Completion

2008-06-25

Publications

• Montgomery DL, Matthews RP, Yee KL, Tobias LM, Dorr MB, Wrishko RE. Assessment of Bezlotoxumab Immunogenicity. Clin Pharmacol Drug Dev. 2020 Apr;9(3):330-340. doi: 10.1002/cpdd.729. Epub 2019 Aug 14.
• Gupta SB, Mehta V, Dubberke ER, Zhao X, Dorr MB, Guris D, Molrine D, Leney M, Miller M, Dupin M, Mast TC. Antibodies to Toxin B Are Protective Against Clostridium difficile Infection Recurrence. Clin Infect Dis. 2016 Sep 15;63(6):730-734. doi: 10.1093/cid/ciw364. Epub 2016 Jun 30.
• Lowy I, Molrine DC, Leav BA, Blair BM, Baxter R, Gerding DN, Nichol G, Thomas WD Jr, Leney M, Sloan S, Hay CA, Ambrosino DM. Treatment with monoclonal antibodies against Clostridium difficile toxins. N Engl J Med. 2010 Jan 21;362(3):197-205. doi: 10.1056/NEJMoa0907635.

Drugs

Indications