Gepotidacin ABSSSI – How to Fail Adaptively,

Study Design in ABSSSI – A Statistician’s Delight The design of the O’Riordan ABSSI study [1] deserves comment.  This was a double-blind study of 2 lower dose arms (Part 1) with an add-on open-label (Part 2) high-dose arm. The pimary endpoint was a non-standard composite efficacy and safety endpoint that Continue reading Gepotidacin ABSSSI – How to Fail Adaptively,

A Critical Review of WHO’s List of Antibacterials in Clinical Development

WHO compiles a list of antibacterials in clinical development on a regular basis, the last in mid-2024 [1].  The information is up-to-date and detailed: it provides MoA and antibacterial spectrum, coverage of problem pathogens, the development phase, and whether it can be considered an ‘innovative’ drug (based on a set Continue reading A Critical Review of WHO’s List of Antibacterials in Clinical Development

The Weak Correlation Between Antibiotic Action and Mortality

At the recent FDA workshop on narrow-spectrum antibiotic development[1], the concept of using bacteriological response (BR) as an efficacy endpoint was flat-out rejected. The reason given is the purported lack of correlation between BR and survival/mortality which FDA considers the most important clinical endpoint[2]. FDA felt so strongly about this, Continue reading The Weak Correlation Between Antibiotic Action and Mortality