Researchers from Suzhou Siran Biotech Co. Ltd. presented the discovery and preclinical characterization of SA-1211, an N-acetylgalactosamine (GalNAc)-conjugated siRNA dimer targeting both hepatitis B virus (HBV) and PD-L1 gene expression, being developed as a potential new therapeutic candidate for the treatment of chronic hepatitis B (CHB).

Switch Therapeutics Inc. has announced its first development candidate, a liver-sparing APOE (apolipoprotein E) RNAi therapy for treatment of Alzheimer’s disease in APOE4 carriers. Switch’s conditionally activated siRNA (CASi)-APOE program is designed to knock down APOE in the CNS without affecting APOE in the liver, where it plays a vital role in systemic lipid homeostasis.

Clostridioides difficile is traditionally isolated from healthcare facilities' inpatients, but it is increasingly being identified in people who have not recently been hospitalized and is more and more found in community settings. Investigators from Perelman School of Medicine at University of Pennsylvania developed an mRNA-LNP vaccine with promising results in preventing and controlling C. difficile infection.