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Theravance Biopharma Announces FDA Approval of Expanded Label for Vibativ (telavancin)

DUBLIN, IRELAND -- (Marketwired) -- 05/09/16 -- Theravance Biopharma, Inc. (NASDAQ: TBPH) ("Theravance Biopharma" or the "Company") today announced that the U.S. Food and Drug Administration (FDA) has approved the Company's supplemental New Drug Application (sNDA) for Vibativ (telavancin) to expand the product's label to include data describing the treatment of patients with concurrent Staphylococcus aureus (S. aureus) bacteremia in both of the antibiotic's currently approved indications in the United States. Vibativ is approved in the U.S. for the treatment of adult patients with hospital-acquired and ventilator-associated bacterial pneumonia (HABP/VABP) caused by susceptible isolates of S. aureus when alternative treatments are not suitable. In addition, Vibativ is approved in the U.S. for the treatment of adult patients with complicated skin & skin structure infections (cSSSI) caused by susceptible isolates of Gram-positive bacteria, including S. aureus, both methicillin-susceptible (MSSA) and methicillin-resistant (MRSA) strains.

Bacteremia is the presence of bacteria in the bloodstream and can occur spontaneously or in the presence of other infections. Bacteremia continues to represent a significant unmet medical need. Concurrent bacteremia, which in its most serious form is fatal, occurs when bacteria spreads from its initial infection site and enters the bloodstream. As a secondary infection, it introduces significant challenges to the treatment of the primary infection, as well as the concurrent bacteremia itself.

"When patients with cSSSI or HABP/VABP present with concurrent bacteremia, their treatment becomes more difficult for healthcare practitioners. With this action by the FDA, we believe an important advance has been made in addressing the unique challenges in this area. The additional data that are now reflected in the Vibativ label address the use of Vibativ in cSSSI and HABP/VABP with concurrent bacteremia and we are now implementing a strategy to communicate this information to targeted healthcare practitioners," said Frank Pasqualone, Senior Vice President and Global Head, Acute Care Business at Theravance Biopharma. "With the broader medical need for effective bacteremia treatments in mind, we are also conducting a Phase 3 registrational study of telavancin in primary complicated S. aureus bacteremia, which we expect to complete in late 2017 or early 2018. Should we prove successful with this trial and secure approval in this infection type, Vibativ would possess the broadest set of indications of any branded anti-MRSA agent."

The sNDA filing was based on the combined data from Theravance Biopharma's previously conducted pivotal trials of Vibativ in its two approved indications -- cSSSI (ATLAS I and II) and HABP/VABP (ATTAIN I and II). The trials were large, multi-center, multinational, double-blind, randomized Phase 3 clinical studies enrolling and treating 3,370 adult patients, including a portion of patients with concurrent bacteremia. Importantly, these studies involved two of the largest cohorts of patients ever studied in these diseases and included one of the largest cohorts of patients with MRSA infections studied to date.

Expanded Vibativ Label Data

The data added to the Vibativ label describe patients with concurrent S. aureus bacteremia in the Phase 3 ATLAS and ATTAIN trials. These include:

  • In the all-treated cSSSI patient population with baseline S. aureus bacteremia in the ATLAS I and II trials, clinical cure rates at test-of-cure were 57.1% for Vibativ-treated patients vs. 54.6% for vancomycin-treated patients.
  • In the HABP/VABP patient population with at least one Gram-positive respiratory pathogen at baseline who had concurrent S. aureus bacteremia in the ATTAIN I and II trials, the 28-day all-cause mortality rate was 40.0% for Vibativ-treated patients vs. 39.5% for vancomycin-treated patients.

Separately, Theravance Biopharma is currently conducting a Phase 3 registrational study of telavancin in patients with complicated S. aureus bacteremia. The trial is a multi-center, randomized, open-label study that is enrolling approximately 250 adult patients with confirmed MSSA or MRSA bacteremia at about 70 clinical sites in the U.S. and around the world. Researchers are evaluating telavancin in treating these patients as compared to standard therapies such as vancomycin, daptomycin and anti-staphylococcal penicillins. The trial is expected to be completed in late 2017 or early 2018.

About Theravance Biopharma

Theravance Biopharma is a diversified biopharmaceutical company with the core purpose of creating medicines that make a difference in the lives of patients suffering from serious illness. Our pipeline of internally discovered product candidates includes potential best-in-class medicines to address the unmet needs of patients being treated for serious conditions primarily in the acute care setting. Vibativ® (telavancin), our first commercial product, is a once-daily dual-mechanism antibiotic approved in the U.S., Europe and certain other countries for certain difficult-to-treat infections. Revefenacin (TD-4208) is a long-acting muscarinic antagonist (LAMA) being developed as a potential once-daily, nebulized treatment for chronic obstructive pulmonary disease (COPD). Our neprilysin (NEP) inhibitor program is designed to develop selective NEP inhibitors for the treatment of a range of major cardiovascular and renal diseases, including acute and chronic heart failure, hypertension and chronic kidney diseases such as diabetic nephropathy. Our research efforts are focused in the areas of inflammation and immunology, with the goal of designing medicines that provide targeted drug delivery to tissues in the lung and gastrointestinal tract in order to maximize patient benefit and minimize risk. The first program to emerge from this research is designed to develop GI-targeted pan-Janus kinase (JAK) inhibitors for the treatment of a range of inflammatory intestinal diseases. In addition, we have an economic interest in future payments that may be made by Glaxo Group Limited or one of its affiliates pursuant to its agreements with Innoviva, Inc. relating to certain drug development programs, including the Closed Triple (the combination of fluticasone furoate, umeclidinium, and vilanterol).

For more information, please visit www.theravance.com.

THERAVANCE®, the Cross/Star logo, MEDICINES THAT MAKE A DIFFERENCE® and VIBATIV® are registered trademarks of the Theravance Biopharma group of companies.

This press release contains certain "forward-looking" statements as that term is defined in the Private Securities Litigation Reform Act of 1995 regarding, among other things, statements relating to goals, plans, objectives and future events. Theravance Biopharma intends such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in Section 21E of the Securities Exchange Act of 1934 and the Private Securities Litigation Reform Act of 1995. Examples of such statements include statements relating to: the Company's strategies, plans and objectives, the Company's regulatory strategies and timing and results of clinical studies, the potential benefits and mechanisms of action of the Company's product and product candidates and the Company's expectations for product candidates through development and commercialization. These statements are based on the current estimates and assumptions of the management of Theravance Biopharma as of the date of the press release and are subject to risks, uncertainties, changes in circumstances, assumptions and other factors that may cause the actual results of Theravance Biopharma to be materially different from those reflected in the forward-looking statements. Important factors that could cause actual results to differ materially from those indicated by such forward-looking statements include, among others, risks related to: delays or difficulties in commencing or completing clinical studies, the potential that results from clinical or non-clinical studies indicate the Company's product candidates are unsafe or ineffective, the feasibility of undertaking future clinical trials for our product candidates based on FDA policies and feedback, dependence on third parties to conduct clinical studies, delays or failure to achieve and maintain regulatory approvals for product candidates, risks of collaborating with third parties to discover, develop and commercialize product and product candidates and risks associated with establishing and maintaining sales, marketing and distribution capabilities with appropriate expertise and supporting infrastructure and risks of developing an institutional customer mix for VIBATIV® (telavancin) that meet the Company's plan for the product. Other risks affecting Theravance Biopharma are described under the heading "Risk Factors" contained in Theravance Biopharma's Annual Report on Form 10-K filed with the Securities and Exchange Commission (SEC) on March 11, 2016. In addition to the risks described above and in Theravance Biopharma's other filings with the SEC, other unknown or unpredictable factors also could affect Theravance Biopharma's results. No forward-looking statements can be guaranteed and actual results may differ materially from such statements. Given these uncertainties, you should not place undue reliance on these forward-looking statements. Theravance Biopharma assumes no obligation to update its forward-looking statements on account of new information, future events or otherwise, except as required by law.

Source: Theravance Biopharma, Inc.

Posted: May 2016

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