Merck (NYSE: MRK), known as MSD outside the United States and Canada, today announced that the Biologics License Application (BLA) for its investigational Timothy grass pollen ( Phleum pratense) allergy immunotherapy tablet (AIT) has been accepted for review by the U.S. Food and Drug Administration (FDA). In March, the company also submitted a BLA to the FDA for its investigational ragweed pollen ( Ambrosia artemisiifolia) AIT. The BLA for Merck’s grass pollen AIT is supported by Phase III trials that evaluated the safety and efficacy of the investigational product, including a long-term, multi-season trial. “We are pleased to have achieved this important milestone in the development of our investigational grass pollen AIT, which, if approved, would represent a potential new option for allergy specialists to offer appropriate allergic rhinitis patients,” said Jeffrey A. Chodakewitz, M.D., senior vice president, Global Scientific Strategy, franchise head, Infectious Diseases and interim franchise head, Respiratory & Immunology, Merck Research Laboratories. Merck's grass pollen ( Phleum pratense) AIT is an investigational sublingual dissolvable tablet designed to help treat the underlying cause of allergic rhinitis by generating an immune response to help protect against targeted allergens. Merck has partnered with ALK-Abello to develop its grass pollen ( Phleum pratense) AIT in North America. About Merck Today's Merck is a global healthcare leader working to help the world be well. Merck is known as MSD outside the United States and Canada. Through our prescription medicines, vaccines, biologic therapies, and consumer care and animal health products, we work with customers and operate in more than 140 countries to deliver innovative health solutions. We also demonstrate our commitment to increasing access to healthcare through far-reaching policies, programs and partnerships. For more information, visit www.merck.com and connect with us on Twitter, Facebook and YouTube. Forward-Looking Statement This news release includes “forward-looking statements” within the meaning of the safe harbor provisions of the United States Private Securities Litigation Reform Act of 1995. These statements are based upon the current beliefs and expectations of Merck’s management and are subject to significant risks and uncertainties. There can be no guarantees with respect to pipeline products that the products will receive the necessary regulatory approvals or that they will prove to be commercially successful. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements.