BOSTON, March 05, 2024 (GLOBE NEWSWIRE) -- Paratek Pharmaceuticals, Inc., a biopharmaceutical company focused on providing innovative medical therapies that create positive patient stories in the hospital, community and public health settings, today announced positive top-line efficacy data for NUZYRA® (omadacycline) as post-exposure prophylaxis (PEP) in a non-human primate (NHP) model of inhalational anthrax. Anthrax (B. anthracis) is an infectious disease caused by gram-positive, rod-shaped, spore-forming bacteria that can lead to severe illness and death.

In the study, a 100% survival rate was observed in omadacycline-treated NHPs at the end of the treatment period (30 days) and a survival rate over 90% was observed over the entirety of the 60-day observation period. All NHPs treated with placebo died due to anthrax within 10 days of exposure to B. anthracis.

Top-line data from this study triggered an additional procurement of NUZYRA under the company’s Project BioShield contract with the Biomedical Advanced Research and Development Authority (BARDA), part of the Administration for Strategic Preparedness and Response within the U.S. Department of Health and Human Services. Oral NUZYRA tablets associated with this procurement were manufactured in the United States as part of the company’s U.S. onshoring efforts.   

“Positive top-line data from this study represents continued progress in our anthrax development program and further validates NUZYRA’s potential to effectively treat pulmonary anthrax,” said Randy Brenner, Paratek’s chief development and regulatory officer. “This procurement also represents a significant milestone in the company’s onshoring efforts as for the first time Paratek is providing BARDA with NUZYRA tablets produced on U.S. soil. We are grateful for BARDA’s continued commitment in our partnership to address national security threats and public health emergencies involving anthrax, and believe that these efforts further strengthen our nation’s commitment to address potential bioterrorism threats at a time when antibiotic resistance is a global concern.”

A meeting with FDA will be planned for the middle of 2024 to align on the final studies required to support the sNDA submission for both anthrax treatment and PEP indications.

In December 2019, BARDA awarded Paratek a contract (75A50120C00001) that is now valued at up to approximately $304 million. In addition to supporting the development of NUZYRA for both the treatment and prophylaxis of pulmonary anthrax, this contract supports the U.S. onshoring of NUZYRA and manufacturing security requirements; FDA post-marketing requirements associated with the initial NUZYRA approval; and the procurement of up to 10,000 treatment courses of NUZYRA for the treatment of anthrax.

About Paratek Pharmaceuticals, Inc.
Paratek Pharmaceuticals, Inc. is a commercial-stage biopharmaceutical company focused on providing innovative medical therapies that create positive patient stories in the hospital, community and public health settings.

The company’s lead commercial product, NUZYRA® (omadacycline), is a once-daily oral and intravenous antibiotic available in the United States for the treatment of adults with community-acquired bacterial pneumonia (CABP) and acute bacterial skin and skin structure infections (ABSSSI). Paratek has a collaboration agreement with Zai Lab for the development and commercialization of omadacycline in the greater China region and retains all remaining global rights.

Paratek is also conducting a Phase 2b study with NUZYRA in a rare disease, non-tuberculous mycobacterial (NTM) pulmonary disease, caused by Mycobacterium abscessus complex. Paratek estimates this opportunity represents a potential $1 billion addressable market in the United States.

Paratek exclusively licensed U.S. rights and rights to the greater China territory for Seysara® (sarecycline), a once-daily oral therapy for the treatment of moderate to severe acne vulgaris, to Almirall, LLC. Paratek retains the development and commercialization rights for sarecycline in the rest of the world.

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About NUZYRA®
NUZYRA® (omadacycline) is a novel antibiotic with both once-daily oral and intravenous (IV) formulations for the treatment of community-acquired bacterial pneumonia (CABP) and acute bacterial skin and skin structure infections (ABSSSI). A modernized tetracycline, NUZYRA is specifically designed to overcome tetracycline resistance and exhibits activity across a spectrum of bacteria, including Gram-positive, Gram-negative, atypicals and other drug-resistant strains.

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