On May 29, 2020, Achaogen, Inc. went out of business as per its Chapter 11 liquidation filing under bankruptcy. Achaogen, Inc., a biopharmaceutical company, focuses on the development and commercialization of antibacterial agents for multi-drug resistant (MDR) gram-negative infections in the United States. The company is principally developing plazomicin for the treatment of serious bacterial infections due to MDR enterobacteriaceae comprising carbapenem-resistant enterobacteriaceae. It is also involved in the development of antibacterial candidate C-Scape, an orally-administered combination of clavulanate and ceftibuten, which targets serious bacterial infections due to expanded spectrum beta-lactamases producing enterobacteriaceae. The company has license and collaboration agreements with Thermo Fisher Scientific, Inc. to develop and commercialize an assay to support plazomicin; Crystal Biosciences, Inc. to discover monoclonal antibodies against multiple targets; Ionis Pharmaceuticals, Inc. for certain patents relating to aminoglycoside antibacterial compounds and related know-how to develop and commercialize certain novel aminoglycoside antibacterial compounds; and Hovione Limited manufacture the active pharmaceutical ingredient for plazomicin. The company was incorporated in 2002 and is based in South San Francisco, California.