FDA Acknowledges Receipt Of Resubmission Of Shire's New Drug App

Lexington, MA /PRNewswire/ -

• New FDA action date of July 22, 2016
• Lifitegrast has the potential to be the only product approved in the U.S. in the past decade indicated for the treatment of signs and symptoms of dry eye disease in adults

Shire plc (LSE: SHP, NASDAQ: SHPG) announced today that the U.S. Food and Drug Administration (FDA) has acknowledged receipt of the resubmission of the New Drug Application (NDA) for lifitegrast for the treatment of signs and symptoms of dry eye disease in adults. Shire resubmitted the NDA in response to the complete response letter (CRL) received from the FDA on October 16, 2015 that requested an additional clinical study and more information related to product quality. The FDA determined that the submission is a complete response and has assigned a 6-month review period for the NDA and a Prescription Drug User Fee Act (PDUFA) goal date of July 22, 2016.

"The resubmission is an important milestone for Shire and our commitment to providing a new treatment option for the 29 million adults in the U.S. living with the symptoms of dry eye disease," said Philip J. Vickers, Ph.D., Head of Research & Development, Shire. "We believe that this resubmission package, which includes our positive OPUS-3 data, as well as information about product quality, will address the requests from the FDA. Ophthalmics is a key focus area for Shire, and we're pleased to see our lead candidate continue to advance."

The new drug application for lifitegrast now includes data from five clinical trials, including one Phase 2 study, three Phase 3 safety and efficacy studies (OPUS-1, OPUS-2 and OPUS-3) and one long-term (one year) Phase 3 safety study (SONATA). This is the largest clinical trial program for an investigational-stage compound in dry eye disease with over 2,500 patients.

Shire originally submitted the NDA for lifitegrast to the FDA in February 2015. In April 2015, the FDA granted Priority Review designation to lifitegrast, which accelerated the review target to eight months instead of the standard 12 months.

About Lifitegrast
Lifitegrast binds to the integrin lymphocyte function-associated antigen-1 (LFA-1), a cell surface protein found on leukocytes and blocks the interaction of LFA-1 with its cognate ligand intercellular adhesion molecule-1 (ICAM-1). ICAM-1 is over-expressed in corneal and conjunctival tissues in dry eye disease. LFA-1/ICAM-1 interaction contributes to formation of an immunological synapse resulting in T-cell activation and migration to target tissues. In vitro studies have demonstrated that lifitegrast inhibits T-cell adhesion to ICAM-1 expressing cells and inhibits secretion of key inflammatory cytokines (IFNγ, TNFα, IL-2) as well as inhibiting other proinflammatory cytokines: IL-1α, IL-1β, IL-2, IL-4, IL-5, and IL-13, all of which are known to be associated with dry eye disease.

About OPUS-3
OPUS-3, a Phase 3 study that evaluated the efficacy and safety of lifitegrast 5% versus placebo, met the primary endpoint of significantly improving patient-reported symptoms of dry eye disease from baseline to day 84 (p=0.0007), and met key secondary endpoints of symptom improvement from baseline to days 14 and 42 (p<0.0001 for both endpoints).

About Dry Eye Disease
Dry eye is a multifactorial disease of the tears and ocular surface. It is diagnosed by an eye care professional based on patient reported symptoms, such as eye dryness, overall eye discomfort, stinging, burning, a gritty feeling or fluctuating blurry vision, as well as signs, which can be measured by an eye care professional to determine the presence of dry eye disease (e.g., Schirmer test, corneal fluorescein staining, conjunctival lissamine green staining, and tear break-up time). Age and gender are recognized as traditional risk factors of dry eye disease while modern risk factors include prolonged screen time, contact lens wear and cataract or refractive surgery. Dry eye is an often chronic ocular disease associated with inflammation that may eventually lead to damage to the surface of the eye. Dry eye may be progressive and is a common complaint to eye care professionals.

Shire's Commitment to Ophthalmics
In May 2014, Shire established its Ophthalmics Business Unit, solidifying its commitment to growing in this therapeutic area. Shire's multi-faceted approach to discovery, development, and delivery in both rare diseases and specialty conditions includes our efforts to address unmet needs in eye care.

Shire's ophthalmics business has been driven by a combination of strategic acquisitions and organic growth. Committed to growing its reputation as a leading biotech company, Shire is focused on continuing to expand its ophthalmics portfolio to include treatment options for rare diseases and those for anterior and posterior segment eye conditions. In just over two years, acquisitions include Foresight Biotherapeutics, SARcode Bioscience, Premacure AB, and BIKAM Pharmaceuticals, which have helped bolster Shire's early-, mid- and late-stage ophthalmics pipeline. The Company currently has an ophthalmics pipeline of investigational candidates in dry eye disease, infectious conjunctivitis, retinopathy of prematurity, autosomal dominant retinitis pigmentosa, and glaucoma.

NOTES TO EDITORS

Shire enables people with life-altering conditions to lead better lives.

Our strategy is to focus on developing and marketing innovative specialty medicines to meet significant unmet patient needs.

We focus on providing treatments in Rare Diseases, Neuroscience, Gastrointestinal and Internal Medicine and we are developing treatments for symptomatic conditions treated by specialist physicians in other targeted therapeutic areas, such as Ophthalmics.

For more information, please visit http://www.shire.com. Follow Shire on Social Media: @Shireplc, LinkedIn and YouTube.

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Statements included herein that are not historical facts, including without limitation statements concerning our proposed business combination with Baxalta Incorporated ("Baxalta") and the timing and financial and strategic benefits thereof, our 20x20 ambition that targets $20 billion in combined product sales by 2020, as well as other targets for future financial results, capital structure, performance and sustainability of the combined company, the combined company's future strategy, plans, objectives, expectations and intentions, the anticipated timing of clinical trials and approvals for, and the commercial potential of, inline or pipeline products are forward-looking statements. Such forward-looking statements involve a number of risks and uncertainties and are subject to change at any time. In the event such risks or uncertainties materialize, Shire's results could be materially adversely affected. The risks and uncertainties include, but are not limited to, the following:

• the proposed combination with Baxalta may not be completed due to a failure to satisfy certain closing conditions, including any shareholder or regulatory approvals or the receipt of applicable tax opinions;
• disruption from the proposed transaction with Baxalta may make it more difficult to conduct business as usual or maintain relationships with patients, physicians, employees or suppliers;
• the combined company may not achieve some or all of the anticipated benefits of Baxalta's spin-off from Baxter International, Inc. ("Baxter") and the proposed transaction may have an adverse impact on Baxalta's existing arrangements with Baxter, including those related to transition, manufacturing and supply services and tax matters;
• the failure to achieve the strategic objectives with respect to the proposed combination with Baxalta may adversely affect the combined company's financial condition and results of operations;
• products and product candidates may not achieve commercial success;
• product sales from ADDERALL XR and INTUNIV are subject to generic competition;
• the failure to obtain and maintain reimbursement, or an adequate level of reimbursement, by third-party payers in a timely manner for the combined company's products may affect future revenues, financial condition and results of operations, particularly if there is pressure on pricing of products to treat rare diseases;
• supply chain or manufacturing disruptions may result in declines in revenue for affected products and commercial traction from competitors; regulatory actions associated with product approvals or changes to manufacturing sites, ingredients or manufacturing processes could lead to significant delays, an increase in operating costs, lost product sales, an interruption of research activities or the delay of new product launches;
• the successful development of products in various stages of research and development is highly uncertain and requires significant expenditures and time, and there is no guarantee that these products will receive regulatory approval;
• the actions of certain customers could affect the combined company's ability to sell or market products profitably, and fluctuations in buying or distribution patterns by such customers can adversely affect the combined company's revenues, financial condition or results of operations;
• investigations or enforcement action by regulatory authorities or law enforcement agencies relating to the combined company's activities in the highly regulated markets in which it operates may result in significant legal costs and the payment of substantial compensation or fines;
• adverse outcomes in legal matters and other disputes, including the combined company's ability to enforce and defend patents and other intellectual property rights required for its business, could have a material adverse effect on the combined company's revenues, financial condition or results of operations;
• Shire is undergoing a corporate reorganization and was the subject of an unsuccessful acquisition proposal and the consequent uncertainty could adversely affect the combined company's ability to attract and/or retain the highly skilled personnel needed to meet its strategic objectives;
• failure to achieve the strategic objectives with respect to Shire's acquisition of NPS Pharmaceuticals Inc. or Dyax Corp. ("Dyax") may adversely affect the combined company's financial condition and results of operations;
• the combined company will be dependent on information technology and its systems and infrastructure face certain risks, including from service disruptions, the loss of sensitive or confidential information, cyber-attacks and other security breaches or data leakages that could have a material adverse effect on the combined company's revenues, financial condition or results of operations;
• the combined company may be unable to retain and hire key personnel and/or maintain its relationships with customers, suppliers and other business partners;
• difficulties in integrating Dyax or Baxalta into Shire may lead to the combined company not being able to realize the expected operating efficiencies, cost savings, revenue enhancements, synergies or other benefits at the time anticipated or at all; and

other risks and uncertainties detailed from time to time in Shire's, Dyax's or Baxalta's filings with the Securities and Exchange Commission ("SEC"), including those risks outlined in Baxalta's current Registration Statement on Form S-1, as amended, and in "Item 1A: Risk Factors" in Shire's Annual Report on Form 10-K for the year ended December 31, 2014.

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