Genzyme Provides Update on U.S. LEMTRADA™ Filing

Genzyme Provides Update on U.S. LEMTRADA™ Filing

Jean-Marc Podvin, +33 (0) 1 53 77 46 46orSébastien Martel, +33 (0) 1 53 77 45 45orErin Walsh, +1 617-768-6881orGeorge Grofik, +1 908-981-6031

, a Sanofi company (EURONEXT: SAN and NYSE: SNY), announced it has received a Refuse to File letter from the U.S. Food and Drug Administration (FDA) in response to the supplemental Biologics License Application (sBLA) for the approval of LEMTRADA™ (alemtuzumab) as a treatment for relapsing multiple sclerosis.

After collaborative consultations with the FDA, the agency requested that the company modify the presentation of the data sets to enable the agency to better navigate the application. The FDA has not requested additional data or further studies. Genzyme will work with the FDA over the coming weeks to resubmit the application as soon as possible.

“We have had constructive dialogue with the FDA, and we are very confident in our ability to address the agency’s request and resubmit rapidly,” said David Meeker, President and CEO, Genzyme.

The company’s marketing authorization application submitted to the European Medicines Agency has been accepted and the review process is underway.

Genzyme is developing LEMTRADA in MS in collaboration with Bayer HealthCare.

Alemtuzumab is a monoclonal antibody that selectively targets CD52, a protein abundant on T and B cells. Treatment with alemtuzumab results in the depletion of circulating T and B cells thought to be responsible for the damaging inflammatory process in MS. Alemtuzumab has minimal impact on other immune cells. The acute anti-inflammatory effect of alemtuzumab is immediately followed by the onset of a distinctive pattern of T and B cell repopulation that continues over time, rebalancing the immune system in a way that potentially reduces MS disease activity.

Genzyme holds the worldwide rights to alemtuzumab and has primary responsibility for its development and commercialization in multiple sclerosis. Bayer HealthCare retains an option to co-promote alemtuzumab in multiple sclerosis. Bayer HealthCare has notified Genzyme of its intention to co-promote under this option. Upon regulatory approval and commercialization, Bayer would receive contingent payments based on sales revenue.

*Lemtrada is the proprietary name submitted to health authorities for the company’s investigational multiple sclerosis agent alemtuzumab.

Genzyme has pioneered the development and delivery of transformative therapies for patients affected by rare and debilitating diseases for over 30 years. We accomplish our goals through world-class research and with the compassion and commitment of our employees. With a focus on rare diseases and multiple sclerosis, we are dedicated to making a positive impact on the lives of the patients and families we serve. That goal guides and inspires us every day. Genzyme’s portfolio of transformative therapies, which are marketed in countries around the world, represents groundbreaking and life-saving advances in medicine. As a Sanofi company, Genzyme benefits from the reach and resources of one of the world’s largest pharmaceutical companies, with a shared commitment to improving the lives of patients. Learn more at .

Sanofi, a global and diversified healthcare leader, discovers, develops and distributes therapeutic solutions focused on patients’ needs. Sanofi has core strengths in the field of healthcare with seven growth platforms: diabetes solutions, human vaccines, innovative drugs, consumer healthcare, emerging markets, animal health and the new Genzyme. Sanofi is listed in Paris (EURONEXT: SAN) and in New York (NYSE: SNY).

The Bayer Group is a global enterprise with core competencies in the fields of health care, nutrition and high-tech materials. Bayer HealthCare, a subgroup of Bayer AG with annual sales of EUR 17.2 billion (2011), is one of the world’s leading, innovative companies in the healthcare and medical products industry and is based in Leverkusen, Germany. The company combines the global activities of the Animal Health, Consumer Care, Medical Care and Pharmaceuticals divisions. Bayer HealthCare’s aim is to discover, develop, manufacture and market products that will improve human and animal health worldwide. Bayer HealthCare has a global workforce of 55,700 employees (Dec 31, 2011) and is represented in more than 100 countries. Find more information at .

Suggested Articles

The FDA has slapped a U.S. drug repackager, saying in a warning letter that its storage processes and equipment cleaning are not up to expectations.

By extending the tender offer for just six days, Roche seems confident it will receive positive reviews from U.S. and U.K. watchdogs in time.

Back in June, Takeda scrapped a Ninlaro trial in rare disease light-chain (AL) amyloidosis. Saturday, it shared the data behind the decision.