12-week Study to Evaluate RebiSmart™ Suitability for Self Injection in Relapsing Multiple Sclerosis.

Study Summary

The Electronic Device - The RebiSmart™ is an electronic injection device that is being studied for the delivery of Merck Serono's Rebif® New Formulation. The RebiSmart™ device is a stand-alone hand-held device with internal power supply. It is used for subcutaneous (under the skin) injections with single-use sterile disposable needles. The device will be kept in a storage box and placed in the refrigerator after each use. The key features of the RebiSmart™ are as follows: * Battery powered electromechanical automatic injector; * Automatic needle attachment and detachment; * Hidden needle before and after injection; * Injection can only be initiated by pressing the injection button when in contact with the skin; * Automatic needle insertion and injection of the preset dose into the subcutaneous (under the skin) tissue; * Adjustable injection comfort parameters: Injection depth, needle insertion speed, medication injection speed and time that the needle remains in the skin ; * Cartridges with 3 doses of Rebif® New Formulation; and * Several other electronic functions including history (date and time) of cartridge changes and injections. The Study Drug - Rebif® New Formulation (RNF) Rebif® is a medicine that is part of a family of proteins called interferon beta-1a (IFN-β-1a) molecules that play an important role in the immune system and help limit the damage that occurs with multiple sclerosis (MS). The interferon in Rebif® is like your body's own natural human interferon, but is made outside the body by a process called "recombinant DNA technology". Merck Serono International S.A. (the maker of Rebif®) has recently updated the method to make Rebif®, and it is referred to as Rebif® New Formulation (RNF). For the purpose of this study, the form of Rebif® New Formulation (RNF) will differ slightly from the one you currently receive. RNF will be supplied in pre-filled cartridges containing three doses of 44mcg / 0.5 ml IFN-β-1a. This is the amount required for you to

Primary Outcome

RebiSmart was evaluated as "very suitable or suitable"; "a little suitable"; or "not suitable at all" for self-injecting RNF. The Patient User Trial Questionnaire (UTQ) provides confidence in the ability to evaluate the suitability of the device and ease of understanding the different features of the RebiSmart during the training session and the overall subject impression of the injection administration. Subjects completed the Patient UTQ at Study Day1, Week4, and Week12. The Trainer User UTQ pr

Interventions

• DRUG Rebif® New Formulation (RNF) using RebiSmartTM