Kaleido Biosciences, Inc. is a clinical-stage healthcare firm dedicated to pioneering microbiome metabolic therapies. Its pipeline includes specific drug candidates such as KB195 for urea cycle disorders, KB295 targeting ulcerative colitis, KB174 aimed at hepatic encephalopathy, and KB109 for COVID-19. The company is also advancing programs in other significant therapeutic areas, including multi-drug resistant infections, chronic kidney disease, atherosclerotic cardiovascular disease, cardio-metabolic syndrome, immuno-oncology, and various inflammatory bowel conditions. Kaleido maintains strategic collaborations with Institute Gustave Roussy, Washington University, and Janssen. Established in 2015, its headquarters are situated in Lexington, Massachusetts.