Subcutaneous Delivery of High-Dose/Volume Biologics: Current Status and Prospect for Future Advancements

: Subcutaneous (SC) delivery of biologics has traditionally been limited to fluid volumes of 1– 2 mL, with recent increases to volumes of about 3 mL. This injection volume limitation poses challenges for high-dose biologics, as these formulations may also require increased solution concentration in many cases, resulting in high viscosities which can affect the stability, manufacturability, and delivery/administration of therapeutic drugs....