Sulbactam/Durlobactam: First Approval

<p><strong>Declarations</strong></p> <p><strong>Funding</strong> The preparation of this review was not supported by any external funding.</p> <p><strong>Authorship and Conflict of interest</strong> During the peer review process the manufacturer of the agent under review was offered an opportunity to comment on the article. Changes resulting from any comments received were made by the authors on the basis of scientific completeness and accuracy. Susan J. Keam is a contracted employee of Adis International Ltd/Springer Nature, and declares no relevant conflicts of interest. All authors contributed to the review and are responsible for the article content.</p> <p><strong>Ethics approval, Consent to participate, Consent to publish, Availability of data and material, Code availability</strong> not applicable</p> <p>Additional information about this Adis Drug Review can be found<a href="https://www.springer.com/gp/adis/products-services/adis-journals-newsletters/adis-drug-reviews" target="_blank"> here.</a></p> <p><strong>Abstract</strong> </p> <p>Sulbactam/durlobactam (XACDURO^®), is a co-packaged antibacterial product that has been developed by Entasis Therapeutics Inc. for the treatment of infections caused by <em>Acinetobacter baumannii-calcoaceticus</em> complex (ABC). Coadministration of durlobactam (a β-lactamase inhibitor with potent activity against a broad range of serine β-lactamases) with sulbactam (an established class A β-lactamase inhibitor with antibacterial activity against <em>A. baumannii</em>) prevents sulbactam degradation by ABC-produced β-lactamases. In May 2023, sulbactam/durlobactam was approved in the USA for use in patients 18 years of age and older for the treatment of hospital-acquired bacterial pneumonia and ventilator-associated bacterial pneumonia (HABP/VABP) caused by susceptible isolates of ABC. This article summarizes the milestones in the development of sulbactam/durlobactam leading to this first approval for the treatment of infections caused by ABC.</p> <p>© Springer Nature Switzerland AG 2023</p>