Using Optical Coherence Tomography (OCT) to Evaluate the Efficacy and Safety of PEGylated Interferon Beta-1a (BIIB017) in Patients With Relapsing Multiple Sclerosis

BIIB017 is supplied as a liquid in pre-filled syringes to deliver 0.5 mL of 0.25 mg/mL (125 mcg dose) of 20 kDa mPEG-O-2-methylpropionaldehyde-modified human IFN β-1a in 20 mM acetic acid/sodium acetate buffer pH 4.8, 150 mM arginine hydrochloride, and 0.005% Polysorbate 20.