Avidity Biosciences is developing a new class of RNA therapies to treat rare genetic diseases. Avidity has developed an innovative pipeline built upon their Antibody Oligonucleotide Conjugate (AOCTM) platform. AOCs comprise three components: monoclonal antibodies (mAbs), a linker and siRNA. AOCs therefore combine the specificity of mAbs and the precision of oligonucleotides which enable tissue-specific and gene-specific targeting, respectively. Avidity has primarily focused on skeletal muscle diseases with AOC 1001 now in clinical trials and is looking to expand into different cells and tissues. This can be achieved through the flexibility of the AOC platform.