The Autoclicks® Prefilled Pen is a simple to use automatic injection device which delivers a single 1ml dose of Cimzia medication. Autoclicks® is used for injection by health care professionals or caregivers and primarily for self-injection by rheumatoid arthritis patients. The device has been designed with patients for patients and is a simple two-step delivery system, with a non-slip grip designed to support patient hand disability. The device has a large viewing window that shows injection progress and two audible clicks to indicate the start and completion of injection, giving patients’ confidence that they have received their full medication delivery. The underlying technology of the pen represents an important technical advance in the delivery of high viscosity biological products.