Liquid injectable drugs can be contained in a pre-filled syringe system, a cartridge-based system, or a vial-based system (with a rubber stopper and seal). For a vial-based system, the drugs first are aseptically filled into glass or polymer vials. During the subsequent Fill & Finish operations, the vials are closed temporarily by inserting a rubber stopper into the vial orifice. This is prior to crimping with an aluminum seal, which results in the final integral vial-based container closure system.