Manufacturing Processes of a Purified Microbiome Therapeutic Reduce Risk of Transmission of Potential Bacterial Pathogens in Donor Stool.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 37540090.
- Also identified by DOI 10.1093/infdis/jiad298 and PMC identifier 10640771.
- Licence recorded as CC BY-NC-ND.
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Abstract
Although fecal microbiota transplant has been used to prevent recurrent Clostridioides difficile infection (rCDI), documented pathogen transmissions highlight inherent safety risks of minimally processed stool. We describe manufacturing processes for fecal microbiota spores, live (VOWST; VOS, formerly SER-109), a microbiota-based oral therapeutic of Firmicutes spores. Bacterial inactivation kill curves were obtained after ethanol exposure for 4 model organisms spiked into process intermediates. Bacterial log reduction factors ranged from 6.5 log10 to 7.4 log10 and lysis of spiked organisms occurred rapidly within 30 seconds. These experiments demonstrate substantial and rapid inactivation of representative organisms, supporting the potential benefit of VOS manufacturing processes to mitigate risk.
Medical subject headings
- Clostridioides difficile
- Gastrointestinal Microbiome
- Microbiota
- Clostridium Infections