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FDA Grants Therapy Designation for Ocrelizumab in Primary Progressive Multiple Sclerosis

  • Published: 2016-02-17 : Author: Genentech, Inc. : Contact:
  • Synopsis: FDA Grants Breakthrough Therapy Designation for Genentech's Investigational Medicine Ocrelizumab in Primary Progressive Multiple Sclerosis.

Ocrelizumab is a humanized anti-CD20 monoclonal antibody, hence a CD20 antagonist. It targets mature B lymphocytes and is an immunosuppressive drug candidate. Ocrelizumab is currently under development for multiple sclerosis by Hoffmann–La Roche's subsidiary Genentech, and Biogen Idec.

Main Document

""Ocrelizumab is the first investigational medicine for MS to be granted Breakthrough Therapy Designation by the FDA," said Sandra Horning, M.D., chief medical officer and head of Global Product Development."

Genentech, a member of the Roche group announced today that the U.S. Food and Drug Administration (FDA) has granted Breakthrough Therapy Designation for the investigational medicine ocrelizumab (OCREVUS™) for the treatment of people with primary progressive multiple sclerosis (PPMS). There are currently no approved treatments for PPMS, a debilitating form of MS characterized by steadily worsening symptoms and typically without distinct relapses or periods of remission.1

"Ocrelizumab is the first investigational medicine for MS to be granted Breakthrough Therapy Designation by the FDA," said Sandra Horning, M.D., chief medical officer and head of Global Product Development. "With no approved treatments for primary progressive MS, ocrelizumab has the potential to address an important unmet need. We are committed to working with the FDA to bring ocrelizumab to people with primary progressive MS as quickly as possible."

Breakthrough Therapy Designation is designed to expedite the development and review of medicines intended to treat serious or life-threatening diseases and to help ensure people have access to them through FDA approval as soon as possible. The designation is based on positive results from the pivotal Phase III study (called ORATORIO), which showed treatment with ocrelizumab significantly reduced disability progression and other markers of disease activity compared with placebo. Top-line results were presented at the 31st congress of the European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS) in October 2015.

Genentech plans to pursue marketing authorization for both PPMS and relapsing multiple sclerosis (RMS), a more common form of the disease, and will submit data from three pivotal Phase III studies to the FDA in the first half of 2016.

OCREVUS™ is the proprietary name submitted to the FDA for the investigational medicine ocrelizumab.

About ocrelizumab

Ocrelizumab is an investigational, humanized monoclonal antibody designed to selectively target CD20-positive B cells. CD20-positive B cells are a specific type of immune cell thought to be a key contributor to myelin (nerve cell insulation and support) and axonal (nerve cell) damage, which can result in disability in people with MS. Based on preclinical studies, ocrelizumab binds to CD20 cell surface proteins expressed on certain B cells, but not on stem cells or plasma cells, and therefore important functions of the immune system may be preserved.

In addition to ORATORIO, the Phase III clinical development program for ocrelizumab includes OPERA I and OPERA II, which are randomized, double-blind, double-dummy, global multi-center studies in people with relapsing forms of MS.

About the ORATORIO study in PPMS

ORATORIO is a Phase III, randomized, double-blind, global multi-center study evaluating the efficacy and safety of ocrelizumab compared with placebo in 732 people with PPMS.2 The primary endpoint of the study was time to onset of confirmed disability progression (CDP) sustained for at least 12 weeks.

CDP measures a sustained protocol-defined increase in a patient’s Expanded Disability Status Scale (EDSS) score. The EDSS is based on a physical and neurological exam of eight systems throughout the body. The functional systems include vision, coordination, limb movement, strength, thinking abilities, bowel and bladder control, sensation and walking ability.

About multiple sclerosis

Multiple sclerosis (MS) is a chronic disease that affects an estimated 2.3 million people around the world, for which there is currently no cure.3,4 MS occurs when the immune system abnormally attacks the insulation and support around nerve cells (myelin sheath) in the brain, spinal cord and optic nerves, causing inflammation and consequent damage. Damage to these nerves can cause a wide range of symptoms, including muscle weakness, fatigue and difficulty seeing, and may eventually lead to progressive disability.5,6,7

Primary progressive MS (PPMS) is a debilitating form of MS characterized by steadily worsening symptoms but typically without distinct relapses or periods of remission.1 Approximately one in 10 people with MS are diagnosed with the primary progressive form of the disease. There are no approved treatments for PPMS.

About Genentech in neuroscience

Neuroscience is a major focus of research and development at Genentech and Roche. The company’s goal is to develop treatment options based on the biology of the nervous system to help improve the lives of people with chronic and potentially devastating diseases. Roche has more than a dozen investigational medicines in clinical development for diseases that include multiple sclerosis, Alzheimer’s disease, spinal muscular atrophy, Parkinson’s disease, Down syndrome and autism.

About Genentech

Founded 40 years ago, Genentech ( is a leading biotechnology company that discovers, develops, manufactures and commercializes medicines to treat patients with serious or life-threatening medical conditions. The company, a member of the Roche Group, has headquarters in South San Francisco, California.

All trademarks used or mentioned in this release are protected by law.


1. MS International Federation.

2. F. Hoffmann-La Roche. NCT01194570. National Library of Medicine.

3. Multiple Sclerosis International Federation. (2013). Atlas of MS 2013.

4. National Institutes of Health-National Institute of Neurological Disorders and Stroke. (2015). Multiple Sclerosis: Hope Through Research.

5. Ziemssen T. (2005). Modulating processes within the central nervous system is central to therapeutic control of multiple sclerosis. J Neurol, 252(Suppl 5), v38-v45.

6. Hauser S.L. et al. (2012). Multiple sclerosis and other demyelinating diseases. In Harrison’s Principles of Internal Medicine (pp.3395-3409). New York, NY: McGraw Hill Medical.

7. Hadjimichael O. et al. (2007). Persistent pain and uncomfortable sensations in persons with multiple sclerosis. Pain, 127(1-2), 35-41.

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