Sub-growth-inhibitory concentrations of omadacycline inhibit haemolytic activity .

JAC Antimicrob Resist

Paratek Pharmaceuticals, Inc., 1000 First Ave, Suite 200, King of Prussia, PA 19406, USA.

Published: March 2022

Objectives: To evaluate the effect of sub-growth-inhibitory concentrations of omadacycline on ATCC 10832 haemolytic activity .

Methods: Following determination of the MICs of omadacycline and comparator antibiotics, the strain was grown in the presence of individual antibiotics and the percentage of haemolysis assayed; 'washout' experiments were performed with omadacycline only.

Results: Omadacycline inhibited haemolytic activity at sub-growth-inhibitory concentrations. Inhibition was maintained at least 4 h after removal of extracellular drug.

Conclusions: Omadacycline's potency and suppression of virulence factors might contribute to its efficacy in the treatment of acute bacterial skin and skin structure infections and community-acquired bacterial pneumonia caused by virulent strains of . This finding could be relevant for other organisms and virulence factors that depend on new protein synthesis.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8693163PMC
http://dx.doi.org/10.1093/jacamr/dlab190DOI Listing

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