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  • Title: In vitro activity of PD127,391, a new quinolone against bacterial isolates from cancer patients.
    Author: Rolston KV, Ho DH, LeBlanc B, Bodey GP.
    Journal: Chemotherapy; 1990; 36(5):365-72. PubMed ID: 2209169.
    Abstract:
    The in vitro activity of PD127,391, a new 4-quinolone, was compared to that of ciprofloxacin against common clinical bacterial isolates from patients with cancer. PD127,391 was found to have a broad antimicrobial spectrum with excellent activity against gram-positive isolates (including multidrug-resistant organism such as Corynebacterium jeikeium, Enterococcus faecalis, Enterococcus faecium, methicillin-resistant Staphylococcus aureus and coagulase-negative Staphylococcus spp.). It was also extremely active against gram-negative bacilli including Pseudomonas aeruginosa. Against organisms such as Achromobacter xylosoxidans, Acinetobacter spp. and Xanthomonas maltophilia, which are frequently resistant to a variety of antimicrobial agents, PD127,391 exhibited good activity, inhibiting all such isolates at a concentration of 0.5 micrograms/ml. Overall, PD127,391 was far more potent than ciprofloxacin against gram-positive isolates and slightly more active against gram-negative isolates. No bacterium that we examined needed more than 2 micrograms/ml of PD127,391 for inhibition.
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