Devices and methods for establishing aseptic connections between a drug container and a fluid pathway connection for a drug pump are provided. A fluid pathway connection includes a connection hub, a piercing member, a piercing member retainer, and a drug container. The drug container includes a cap, a pierceable seal, and a barrel. The piercing member is at least partially disposed in a sterile chamber defined by the connection hub, and the connection hub is configured to be connected to the drug container while maintaining an aseptic condition of a fluid pathway from the sterile chamber to an interior of the drug container.