Nabriva Therapeutics Receives FDA Acknowledgement of New Drug Application Resubmission for Intravenous CONTEPO™ (fosfomycin) for Injection

PDUFA action date set for June 19, 2020

DUBLIN, Ireland, Jan. 08, 2020 (GLOBE NEWSWIRE) — Nabriva Therapeutics plc (NASDAQ: NBRV), a commercial-stage biopharmaceutical company engaged in the development of innovative anti-infective agents to treat serious infections, announced that the U.S. Food and Drug Administration (FDA) has acknowledged receipt of its New Drug Application (NDA) resubmission for marketing approval of CONTEPO™ (fosfomycin) for injection for the treatment of complicated urinary tract infections (cUTIs).

In the acknowledgement letter for the resubmitted NDA, the FDA stated that Nabriva’s filing was a complete, class 2 response to the complete response letter the FDA issued on April 30, 2019. As a result, the FDA set a Prescription Drug User Fee Act (PDUFA) goal date of June 19, 2020 for the completion of its review of the NDA.

CONTEPO is a potential first-in-class intravenous antibiotic in the U.S. for the treatment of cUTIs. The NDA resubmission is supported by data from a pivotal Phase 2/3 clinical trial (known as ZEUS™), which met its primary endpoint of statistical non-inferiority to piperacillin/tazobactam in patients with cUTI, including acute pyelonephritis.

Complicated Urinary Tract Infection

Complicated urinary tract infection (cUTI) occurs when Gram-negative bacteria are embedded in the bladder wall where they can multiply more slowly and are much harder to address with antibiotics. Patients who are being treated for a urinary tract infection and fail to respond to an initial course of antibiotics can go on to develop a cUTI.

Among the causes of cUTI is Enterobacteriaceae, which is a multi-drug resistance (MDR) strain of Gram-negative bacteria. Enterobacteriaceae produces extended spectrum beta-lactamases (ESBL), a chemical that can cause some antibiotics to be ineffective in treating bacterial infections such as cUTI. As a result, cUTI poses a serious and rapidly emerging health threat for hospitalized patients, especially those in intensive care units.

About CONTEPO

CONTEPO (fosfomycin) for injection is a novel, potentially first-in-class in the United States, intravenous investigational antibiotic with a broad spectrum of Gram-negative and Gram-positive activity, including activity against most contemporary multi-drug resistant (MDR) strains such as extended spectrum β-lactamase (ESBL)-producing Enterobacteriaceae. IV fosfomycin has been approved for a number of indications and utilized for over 45 years outside the U.S. to treat a variety of infections, including cUTIs and other serious bacterial infections.

About Nabriva Therapeutics plc

Nabriva Therapeutics is a biopharmaceutical company engaged in the commercialization and development of innovative anti-infective agents to treat serious infections. Nabriva Therapeutics received U.S. Food and Drug Administration approval for XENLETA™ (lefamulin), the first systemic pleuromutilin antibiotic for community-acquired bacterial pneumonia (CABP). Nabriva Therapeutics is also developing CONTEPO™ (fosfomycin) for injection, a potential first-in-class epoxide antibiotic for intravenous use in the United States for complicated urinary tract infections (cUTI), including acute pyelonephritis. For more information, please visit https://www.nabriva.com.

Forward-Looking Statements

Any statements in this press release about future expectations, plans and prospects for Nabriva Therapeutics, including but not limited to statements about its plans for and timing and potential outcome of the review of regulatory filings for CONTEPO, efforts to bring CONTEPO to market, the development of CONTEPO for cUTI, the clinical utility of CONTEPO for cUTI, the market opportunity for and the potential market acceptance of XENLETA for CABP and CONTEPO for cUTI, the development of XENLETA and CONTEPO for additional indications, the development of additional formulations of XENLETA and CONTEPO, plans to pursue research and development of other product candidates, the sufficiency of Nabriva Therapeutics’ existing cash resources and its expectations regarding how far into the future its existing cash resources will fund its ongoing operations and other statements containing the words “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “plan,” “predict,” “project,” “target,” “potential,” “likely,” “will,” “would,” “could,” “should,” “continue,” and similar expressions, constitute forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those indicated by such forward-looking statements as a result of various important factors, including: Nabriva Therapeutics’ ability to resolve the matters set forth in the Complete Response Letter it received from the FDA in connection with its NDA for CONTEPO (fosfomycin) for injection; Nabriva Therapeutics’ reliance on third-party manufacturers to manufacture the clinical and commercial supply of its product candidates and the ability of such third parties to comply with applicable regulatory requirements; the content and timing of decisions made by the U.S. Food and Drug Administration and other regulatory authorities, Nabriva Therapeutics’ ability to realize the anticipated benefits, synergies and growth prospects of its acquisition of Zavante Therapeutics, the uncertainties inherent in the initiation and conduct of clinical trials, availability and timing of data from clinical trials, whether results of early clinical trials or studies in different disease indications will be indicative of the results of ongoing or future trials, uncertainties associated with regulatory review of clinical trials and applications for marketing approvals, the availability or commercial potential of CONTEPO for the treatment of cUTI, the ability to retain and hire key personnel, the availability of adequate additional financing on acceptable terms or at all and such other important factors as are set forth in Nabriva Therapeutics’ annual and quarterly reports and other filings on file with the U.S. Securities and Exchange Commission. In addition, the forward-looking statements included in this press release represent Nabriva Therapeutics’ views as of the date of this press release. Nabriva Therapeutics anticipates that subsequent events and developments will cause its views to change. However, while Nabriva Therapeutics may elect to update these forward-looking statements at some point in the future, it specifically disclaims any obligation to do so. These forward-looking statements should not be relied upon as representing Nabriva Therapeutics’ views as of any date subsequent to the date of this press release.

CONTACTS:

For Investors
Gary Sender
Nabriva Therapeutics plc
IR@Nabriva.com

For Media
Mike Beyer
Sam Brown Inc.
mikebeyer@sambrown.com
312-961-2502

Source: Nabriva Therapeutics US, Inc

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Michael N. Dudley, Pharm.D.

President and Chief Executive Officer
Qpex Biopharma, Inc.

Dr. Dudley has over 30 years of experience in antiinfective drug research, development, and commercialization. In 2018, he co-founded Qpex Biopharma which raised $33M in Series A financing and acquired the preclinical infectious disease programs from The Medicines Company. He has overseen the development and regulatory approval of 3 antibiotics, most recently a beta-lactamase inhibitor combination product from a new chemical class (vaborbactam) discovered in the company laboratories. The antibiotic product Vabomere™ advanced from discovery to FDA approval in 2017 in less than 8 years. He lead the negotiation for multiple contracts from public-private partnerships (e.g., BARDA of the US Government; Innovative Medicines Initiative for the EU) for a combined total of over $190 million funding to advance antimicrobial agents in development in the US and Europe. Prior to co-founding Qpex, he was Chief Scientific Officer and co-founder of Rempex Pharmaceuticals that was acquired by the Medicines Company (MDCO) in 2013, where he remained as the co-leader of the Infectious Disease Business Unit of MDCO. Prior to Rempex, he held VP/SVP/CSO positions of increasing responsibility at the biotech companies Mpex Pharmaceuticals (acquired by Aptalis in 2011), Diversa Corporation, and Microcide Pharmaceuticals. Prior to his career in pharmaceutical industry, he held full-time academic appointments that included Professor of Pharmacy and Chairman of the Department of Pharmacy Practice at the University of Rhode Island College of Pharmacy (URI), and Adjunct Professor of Medicine, Brown University School of Medicine at Roger Williams Medical Center in Providence, RI. As an academic researcher, he conducted preclinical and clinical research in antibacterial, antifungal, and antiviral agents, including pioneering work on PK-PD approaches for several classes of antiinfectives. Dr. Dudley has published over 130 scientific papers and book chapters describing the evaluation and clinical use of antiinfective agents and treatment of infectious diseases. He has served as an invited speaker at several FDA and EMA workshops, international meetings on infectious diseases, and advisor to several companies. He has served as an Editor for the journal Antimicrobial Agents and Chemotherapy and numerous other editorial and advisory boards. He completed undergraduate work at Pepperdine University and his Doctor of Pharmacy (PharmD) from the University of California San Francisco (UCSF), completed at residency at UCSF, and a fellowship in infectious diseases at Hartford Hospital.

Nabriva Therapeutics Receives FDA Acknowledgement of New Drug Application Resubmission for Intravenous CONTEPO™ (fosfomycin) for Injection

René Russo, PharmD, BCPS

René Russo, PharmD, BCPS

Roger J. Pomerantz, M.D., F.A.C.P.

Christine Ann Miller

Graham G. Lumsden

Marco Taglietti, M.D.

Ankit Mahadevia

Jeffrey Stein, Ph.D.

Evan Loh, M.D.

Michael Dunne, M.D

Ciara Kennedy, Ph.D.

Ted Schroeder

Kevin Finney

Manos Perros, Ph.D.

David Roblin

Stephen Conafay

Christopher J. Burns, Ph.D.

Michael N. Dudley, Pharm.D.

Ramani Varanasi

Corey Fishman

Felix Faupel

Adrian Nivoliez