In the fierce global battle for anti-infective drugs, bacterial resistance is increasing at an alarming rate, posing a major threat to human health. In this battle against drug-resistant bacteria, the β-lactamase inhibitor avibactam and its combination preparations have emerged as key weapons against drug-resistant Gram-negative infections.
Ceftazidime avibactam for Injection: From overseas to domestic use, protecting patients of all ages
Ceftazidime avibactam (CAZ-AVI) is a star drug in the anti-infective field. Approved by the U.S. Food and Drug Administration (FDA) in February 2015, it was successfully marketed in the United States for the treatment of Gram-negative infections, with particular efficacy against infections caused by difficult-to-treat-resistant (DTR) Gram-negative bacteria.
In May 2019, with approval from the National Medical Products Administration, it officially entered the Chinese market, providing a new treatment option for Chinese patients.
On May 8, 2025, Pfizer received another boost of good news for its injectable ceftazidime avibactam sodium, receiving approval from the National Medical Products Administration (NMPA).
Its scope of application has been expanded to include the treatment of complicated intra-abdominal infections (cIAI), hospital-acquired pneumonia, and ventilator-associated pneumonia (HAP/VAP) caused by Gram-negative bacteria in children of all ages, including newborns, as well as infections with limited treatment options, thus safeguarding the health of pediatric patients.
Aztreonam-avibactam for Injection: Leading the way in the EU, followed closely by China, benefiting more patients
In April 2024, aztreonam-avibactam received approval in the EU for the treatment of serious infections caused by multidrug-resistant Gram-negative bacteria, including complicated intra-abdominal infections (cIAI), hospital-acquired pneumonia (including VAP), and complicated urinary tract infections (cUTI), bringing new hope to European patients.
In 2025, this innovative drug also achieved significant progress in China. On June 30th, the latest information from the official website of the National Medical Products Administration (NMPA) revealed that Pfizer’s aztreonam avibactam sodium for injection has been officially approved in China for the treatment of complicated intra-abdominal infections (cIAI) and hospital-acquired pneumonia (HAP), including ventilator-associated pneumonia (VAP), caused by Gram-negative bacteria in adults with limited or no alternative treatment options. This provides a more effective treatment option for adult patients in China.
Two months later, on August 13th, Pfizer’s new antibacterial drug, Sifuno® (aztreonam avibactam sodium for injection), was prescribed for the first time nationwide at several hospitals, including Gaobo Shanghai Zhaxin Hospital of Integrated Traditional Chinese and Western Medicine and Shanghai Liquan Hospital. This marked the drug’s official entry into clinical use, bringing tangible benefits to patients.
Tianming Pharmaceutical: A Leader in the Large-Scale Production of Avibactam Intermediates
Facing the increasingly severe bacterial resistance situation and growing market demand, Shandong Tianming Pharmaceutical, leveraging its extensive technical expertise and strong R&D capabilities, has deeply engaged in the R&D and production of pharmaceutical intermediates, achieving significant breakthroughs in the production of key intermediates in the avibactam series.