Antisense Pipeline | Ionis 5 days ago · IONIS-FB-L Rx, also known as RG6299, is an investigational LIgand-Conjugated Antisense (LICA) medicine designed to inhibit the production of complement … 5 days ago · IONIS-FB-L Rx, also known as RG6299, is an investigational LIgand-Conjugated Antisense (LICA) medicine designed to inhibit the production of complement …