Exosome-based candidates move into the clinic

Exosomes — small extracellular vesicles that are shed by cells — have long offered promise as drug delivery systems for small molecules, DNA, RNA and other biologic payloads. The first of these are now in the clinic. Exosomes — small extracellular vesicles that are shed by cells — have long offered promise as drug delivery systems for small molecules, DNA, RNA and other biologic payloads. The first of these are now in the clinic.