In accordance with one aspect of the invention, injectable particles are provided which comprise (a) a first group of injectable particles comprising first polymeric particles loaded with a first therapeutic agent and (b) a second group of injectable particles comprising second polymeric particles loaded with a second therapeutic agent. The first and second polymeric particles may be the same or different, and the first and second therapeutic agents may be the same or different. Other aspects of the invention pertain to methods of making such particles, to kits that comprise such particles, and to methods of treatment that employ such injectable particles.
