Nabriva Therapeutics plc (NASDAQ: NBRV), a clinical-stage biopharmaceutical company engaged in the research and development of innovative anti-infective agents to treat serious infections, announced that the U.S. Food and Drug Administration (FDA) has updated the PDUFA (Prescription Drug User Fee Act) goal date for the completion of the FDA’s review of the CONTEPO New Drug Application (NDA) from June 30, 2019 to April 30, 2019. The two-month acceleration is due to a clarification of the classification and subsequent expedited review period for the CONTEPO NDA submitted in October 2018. In addition to priority review, CONTEPO has been granted Qualified Infectious Disease Product (QIDP) and Fast Track designations by the FDA for the treatment of several serious infections, including cUTI.
Urinary tract infections (UTIs) are a significant health problem in both the community- and hospital-based treatment settings. It is estimated that 150 million UTIs occur yearly worldwide, accounting for $6 billion in health care expenditures, according to the American Urological Association. Patients with complicated urinary tract infections (cUTIs), which includes acute pyelonephritis (kidney infection), have pyuria and bacteria in their urine, in association with features such as fever, chills, malaise or flank/back pain, in the setting of a functional or anatomical abnormality of the urinary tract or a history of catheterization. Patients who fail to respond to an initial course of antibiotics may develop a cUTI, which occurs when the bacteria are embedded in the bladder wall or ascend to the kidneys, where they can multiply more slowly and are much harder to address with antibiotics. In most cases, cUTIs occur following treatment for a normal UTI because antibiotics were given too late, for too short a period of time, at too low of a dose course or the wrong antibiotic was used and did not provide adequate spectrum of coverage. An estimated three million cases of cUTIs are treated in the hospital setting in the United States each year for Gram-negative infections. Enterobacteriaceae are the most common pathogens causing cUTIs and, currently, widespread antibiotic resistance limits the effective treatment options for cUTI. Ineffectively managed cUTI can lead to increased treatment failure rates, recurrence of infection, increased re-hospitalization, and increased morbidity and mortality.
CONTEPO™ (fosfomycin for injection, previously referred to as ZTI-01 and ZOLYD) 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 ESBL-producing Enterobacteriaceae. Intravenous (I.V.) fosfomycin has been approved for a number of indications and utilized for over 45 years in Europe to treat a variety of infections, including cUTIs and other serious bacterial infections. CONTEPO utilizes a new dosing approach, originally developed by Zavante (which Nabriva Therapeutics acquired), to optimize its pharmacokinetics and pharmacodynamics. Nabriva Therapeutics believes these attributes, along with the positive clinical experience worldwide, support CONTEPO as a first-line treatment for cUTIs, including acute pyelonephritis, suspected to be caused by MDR pathogens. At least 20 percent of cUTIs are caused by MDR bacteria and limited treatment options are available in the U.S. In addition, non-clinical data have shown that CONTEPO acts in combination with certain other antibiotics to improve bacterial killing.
About Nabriva Therapeutics plc
Nabriva Therapeutics is a clinical-stage biopharmaceutical company engaged in the research and development of innovative anti-infective agents to treat serious infections. Nabriva Therapeutics has two product candidates that are in late stage development: lefamulin, potentially the first systemic pleuromutilin antibiotic for CABP and CONTEPO (fosfomycin for injection), a potential first-in-class epoxide antibiotic in the United States for complicated urinary tract infections (cUTIs) including acute pyelonephritis (AP). For more information, please visit https://www.nabriva.com.