Servier and Pfizer Get Rights to Cellectis CAR-T Therapy

November 19, 2015 – New York (USA) and Suresnes (France) – Cellectis (Alternext: ALCLS; Nasdaq: CLLS) and Servier today announced that they signed an amendment to their existing collaboration agreement from February 2014 especially for UCART19, a TALEN® gene-edited allogeneic Chimeric Antigen Receptor T-cell (CAR-T) immunotherapy. Under this amendment, Servier early exercises its option to acquire the exclusive worldwide rights to further develop and commercialize UCART19, which is about to enter Phase 1 development for chronic lymphocytic leukemia (CLL) and acute lymphoblastic leukemia (ALL).

In addition, Pfizer Inc. (NYSE: PFE) and Servier have entered into an exclusive global license and collaboration agreement to co-develop and commercialize UCART19. Under the terms of the agreement, Pfizer and Servier will work together on a joint clinical development program for UCART19 and share development costs. Pfizer will be responsible for potential commercialization of UCART19 in the United States, and Servier will retain marketing rights in countries outside the United States. Pfizer’s collaboration with Servier on UCART19 is distinct from the collaboration with Cellectis that Pfizer announced in June 2014, which did not include UCART19.

UCART19 utilizes Cellectis’ proprietary, allogeneic approach to develop CAR-T therapies that engineer T-cells from non-patient donors for use in multiple patients. This is different from autologous approaches, which engineer a patient’s own T-cells.

Cellectis will receive from Servier a payment of $38.2 million upon signature. In addition, Cellectis is eligible for over $300 million of milestone payments, R&D financing, and royalties on sales from Servier, based on annual net sales of commercialized products. Financial terms for the Servier agreement with Pfizer were not disclosed.

“Servier’s early option exercise is a strong recognition of the potential value of UCART19 for patients, as the first allogeneic CAR-T therapy expected to move into clinical development that utilizes Cellectis’ TALEN® gene editing technologies,” said Dr. André Choulika, Ph.D., chairman and chief executive officer of Cellectis. “Cellectis aims to provide cancer patients with highly innovative best-in-class allogeneic CAR-T therapies across all geographies, and we are proud to collaborate on this license agreement with Servier and Pfizer to foster access for patients.”

“The partnership between Pfizer and Servier is a major step in the development of UCART19 and our ambition to provide innovative drugs for patients in oncology, as it has been envisioned by Servier’s president, Olivier Laureau,” said Emmanuel Canet, M.D., president, Research and Development at Servier.

“This collaboration on the development of the UCART19 asset builds on Pfizer’s position in the CAR-T space and our growing portfolio of investigational immuno-oncology assets, which is a major priority for our oncology business,” said Mikael Dolsten, M.D., Ph.D., president, Worldwide Research and Development at Pfizer. “This work with Servier and Cellectis underscores our companies’ shared commitment to developing unique cancer therapies that may benefit patients around the world.”

About Cellectis
Cellectis is a biopharmaceutical company focused on developing immunotherapies based on gene-edited CAR T-cells (UCART). The company’s mission is to develop a new generation of cancer therapies based on engineered T-cells. Cellectis capitalizes on its 15 years of expertise in genome engineering – based on its flagship TALEN® products and meganucleases and pioneering electroporation PulseAgile technology – to create a new generation of immunotherapies. CAR technologies are designed to target surface antigens expressed on cells. Using its life science-focused, pioneering genome-engineering technologies, Cellectis’ goal is to create innovative products in multiple fields and with various target markets. Cellectis is listed on the Nasdaq market (ticker: CLLS) and on the NYSE Alternext market (ticker: ALCLS). To find out more about us, visit our website: www.cellectis.com.

Talking about gene editing? We do it.
TALEN® is a registered trademark owned by the Cellectis Group.

About Servier
Servier is an independent French-based pharmaceutical company with a strong international presence in 145 countries. It employs more than 21,000 people.
Its development is driven by the pursuit of innovation in the therapeutic areas of cancer, cardiovascular, metabolic, central nervous system, psychiatric, bone, muscle and joint diseases.
In 2014, the company recorded a turnover of 4 billion euros.
28% of this turnover was reinvested in Research and Development.

www.servier.com.

Pfizer Inc.: Working together for a healthier world™
At Pfizer, we apply science and our global resources to bring therapies to people that extend and significantly improve their lives.  We strive to set the standard for quality, safety and value in the discovery, development and manufacture of health care products.  Our global portfolio includes medicines and vaccines as well as many of the world’s best-known consumer health care products.  Every day, Pfizer colleagues work across developed and emerging markets to advance wellness, prevention, treatments and cures that challenge the most feared diseases of our time.  Consistent with our responsibility as one of the world’s premier innovative biopharmaceutical companies, we collaborate with health care providers, governments and local communities to support and expand access to reliable, affordable health care around the world.  For more than 150 years, Pfizer has worked to make a difference for all who rely on us. To learn more, please visit us at www.pfizer.com.

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