eravacycline and Urinary-Tract-Infections

Eravacycline is a novel, broad-spectrum, synthetic fluorocycline antibiotic for the treatment of complicated urinary tract infection (cUTI) and complicated intra-abdominal infection (cIAI) due to multidrug-resistant Gram-positive, Gram-negative and anaerobic bacteria that has demonstrated superior potency to that of currently marketed antibiotics. Tetraphase Pharmaceuticals has submitted a new drug application for eravacycline for the treatment of cIAI due to drug-resistant bacteria. In 2013, the U.S. Food and Drug Administration (FDA) granted eravacycline qualified infectious disease product designation for the treatment of cUTI and cIAI.

Topics: Anti-Bacterial Agents; Bacterial Infections; Drug Compounding; Drug Interactions; Humans; Intraabdominal Infections; Tetracyclines; Treatment Outcome; Urinary Tract Infections

Eravacycline (formerly TP-434) was evaluated in vitro against pre-established biofilms formed by a uropathogenic Escherichia coli strain. Biofilms were eradicated by 0.5 μg/ml eravacycline, which was within 2-fold of the MIC for planktonic cells. In contrast, colistin and meropenem disrupted biofilms at 32 and 2 μg/ml, respectively, concentrations well above their respective MICs of 0.5 and 0.03 μg/ml. Gentamicin and levofloxacin eradicated biofilms at concentrations within 2-fold of their MICs.

Topics: Anti-Bacterial Agents; Biofilms; Colistin; Colony Count, Microbial; Escherichia coli Infections; Gentamicins; Humans; Levofloxacin; Meropenem; Microbial Sensitivity Tests; Tetracyclines; Thienamycins; Urinary Tract Infections; Uropathogenic Escherichia coli