Basel, June 2, 2020 — Novartis today announced that it has received notice from the US Food and Drug Administration (FDA) that the agency has extended its review of the Supplemental Biologics License Application (sBLA) for ofatumumab (OMB 157), a self-administered, targeted B-cell therapy for patients with relapsing multiple sclerosis. Regulatory action is now expected in September 2020.
“Novartis will continue to work with the FDA to complete the review as soon as possible,” said Marie-France Tschudin, President, Novartis Pharmaceuticals. “We are well prepared and ready to launch ofatumumab upon approval. We are committed to the MS community and look forward to bringing this important advancement to patients with MS.”
Additional regulatory filings are currently underway and regulatory approval for ofatumumab in Europe is expected by Q2 2021.
Ofatumumab (OMB 157) is a fully human anti-CD20 monoclonal antibody (mAb) in development for RMS that is self-adminstered by a once-monthly injection, delivered subcutaneously1,2,7. As shown in preclinical studies, ofatumumab is thought to work by binding to a distinct epitope on the CD20 molecule inducing potent B-cell lysis and depletion3. The selective mechanism of action and subcutaneous administration of ofatumumab allows precise delivery to the lymph nodes, where B-cell depletion in MS is needed, and may preserve the B-cells in the spleen, as shown in preclinical studies4. Once-monthly dosing of ofatumumab also allows fast repletion of B-cells and offers more flexibility5. Ofatumumab was originated by Genmab and licensed to GlaxoSmithKline; Novartis obtained rights for ofatumumab from GlaxoSmithKline in all indications, including RMS, in December 20156.
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1. Hauser S. Efficacy and safety of ofatumumab versus teriflunomide in relapsing multiple sclerosis: results of the phase 3 ASCLEPIOS I and II trials. Presented at the European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS) Annual Conference; September 11–13, 2019; Stockholm, Sweden.
2. Bar-Or A, Fox E, Goodyear A, et al. Onset of B-cell Depletion with Subcutaneous Administration of Ofatumumab in Relapsing Multiple Sclerosis: Results from the APLIOS Bioequivalence Study. Presented at Americas Committee for Treatment and Research in Multiple Sclerosis Forum; February 27–29, 2020.
3. Smith P, Kakarieka A, Wallstroem E. Ofatumumab is a fully human anti-CD20 antibody achieving potent B-cell depletion through binding a distinct epitope. Poster presented at ECTRIMS; September 2016; London, UK.
4. Smith P, Huck C, Wegert V, et al. Low-dose, subcutaneous anti-CD20 therapy effectively depletes B-cells and ameliorates CNS autoimmunity. Poster presented at ECTRIMS; September 14–17, 2016; London, UK.
5. Savelieva M, Kahn J, Bagger M, et al. Comparison of the B-Cell Recovery Time Following Discontinuation of Anti-CD20 Therapies. ePoster presented at ECTRIMS; October 25–28, 2017; Paris, France.
6. GSK press release. GSK completes divestment of rights to ofatumumab for auto-immune indications to Novartis. December 21, 2015. Available from: https://www.gsk.com/en-gb/media/press-releases/gsk-completes-divestment-of-rights-to-ofatumumab-for-auto-immune-indications-to-novartis/ [Last accessed: June 2020].
7. Efficacy and Safety of Ofatumumab Compared to Teriflunomide in Patients With Relapsing Multiple Sclerosis (ASCLEPIOS I & II clinical trials), data on file, Novartis. https://clinicaltrials.gov/ct2/show/NCT02792218; https://clinicaltrials.gov/ct2/show/NCT02792231.