Entasis Therapeutics Holdings Inc. hopes to be the first company to obtain a pathogen-specific indication from the US Food and Drug Administration with a broad claim for its antibacterial combination product SUL-DUR to treat carbapenem-resistant Acinetobacterbaumannii infections, and it is relying on the agency’s flexibility regarding challenging disease areas with unmet medical need to get that done.
Antibiotics With Bacteria-Specific, Rather Than Site-Specific, Indication Headed To US FDA
Entasis is seeking a pathogen-specific approval for its antibiotic/beta lactamase inhibitor candidate rather than an indication specific the site of an infection. Achaogen’s earlier failure to do the same may have helped set a path.

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Novartis is planning to file EU and US marketing applications for an intrathecal formulation of its spinal muscular atrophy gene therapy, Zolgensma, in H1 2025.
The FDA’s accelerated approval draft guidance has left stakeholders seeking clarification of the process for determining a surrogate marker or intermediate clinical endpoint is reasonably likely to confirm clinical benefit.
A risk-based approach to human cell therapies and tissue-based products could incentivize development and prevent bad actors from taking advantage of the current FDA system.