Table 1.
In vitro antibacterial activities of nemonoxacin and comparators against bacteria
| Organism (# of isolates) | Quinolones | MIC (mg/L)
|
|
|---|---|---|---|
| Range | MIC90 | ||
| S. pneumoniae (655) | Nemonoxacin | ≤0.008–0.25 | 0.015 |
| Ciprofloxacin | 0.06–16 | 2 | |
| Levofloxacin | 0.06–32 | 1 | |
| Moxifloxacin | 0.06–8 | 0.25 | |
| Levofloxacin-susceptible | Nemonoxacin | 0.06–0.25 | 0.12 |
| S. pneumoniae (71) | Ciprofloxacin | 1–16 | 4 |
| Levofloxacin | 0.5–2 | 2 | |
| Moxifloxacin | 0.06–0.5 | 0.25 | |
| Levofloxacin-resistant | Nemonoxacin | 0.5–8 | 2 |
| S. pneumoniae (29) | Ciprofloxacin | 8 to >16 | >16 |
| Levofloxacin | 8 to >16 | >16 | |
| Moxifloxacin | 2 to >8 | 8 | |
| Penicillin-resistant | Nemonoxacin | 0.015–0.06 | 0.03 |
| S. pneumoniae (32) | Ciprofloxacin | 0.5–8 | 2 |
| Levofloxacin | 0.25–2 | 1 | |
| Moxifloxacin | 0.06–0.25 | 0.25 | |
| Levofloxacin-nonsusceptible | Nemonoxacin | 0.12–4 | 1 |
| S. pneumoniae (30) | |||
| Invasive S. pneumoniae (150) | Nemonoxacin | ≤0.03–1 | 0.06 |
| S. pyogenes (30) | Nemonoxacin | 0.06–0.12 | 0.12 |
| Ciprofloxacin | 0.25–4 | 4 | |
| Levofloxacin | 0.25–2 | 2 | |
| Moxifloxacin | 0.06–0.5 | 0.5 | |
| S. agalactiae (30) | Nemonoxacin | 0.12–2 | 0.25 |
| Ciprofloxacin | 1 to >16 | 2 | |
| Levofloxacin | 0.5 to >16 | 2 | |
| Moxifloxacin | 0.12 to >8 | 0.5 | |
| S. viridans (30) | Nemonoxacin | 0.06–0.25 | 0.25 |
| Ciprofloxacin | 0.25–4 | 4 | |
| Levofloxacin | 0.25–2 | 2 | |
| Moxifloxacin | 0.06–0.25 | 0.25 | |
| H. influenzae (30) | Nemonoxacin | ≤0.008–8 | 4 |
| Ciprofloxacin | ≤0.06–16 | 16 | |
| Levofloxacin | ≤0.06–8 | 8 | |
| Moxifloxacin | ≤0.015 to >8 | >8 | |
| C. pneumoniae (10) | Nemonoxacin | 0.03–0.125 | 0.06 |
| Levofloxacin | 0.5 | 0.5 | |
| Doxycycline | 0.06–0.125 | 0.125 | |
| Azithromycin | 0.03–0.06 | 0.06 | |
| C. trachomatis (10) | Nemonoxacin | 0.03–0.125 | 0.06 |
| Levofloxacin | 0.125–0.5 | 0.25 | |
| Doxycycline | 0.03–0.25 | 0.125 | |
| Azithromycin | 0.003–0.03 | 0.015 | |
| Methicillin-susceptible | Nemonoxacin | ≤0.03–0.06 | ≤0.03 |
| S. aureus (100) | |||
| Methicillin-susceptible | Nemonoxacin | 0.015–1 | 0.12 |
| S. aureus (59) | |||
| Methicillin-susceptible | Nemonoxacin | ≤0.008–32 | 0.12 |
| S. aureus (374) | Ciprofloxacin | 0.06–16 | 4 |
| Levofloxacin | 0.06–32 | 1 | |
| Moxifloxacin | 0.06–16 | 0.25 | |
| Methicillin-resistant | Nemonoxacin | 0.015–64 | 16 |
| S. aureus (MRSA) (127) | Ciprofloxacin | 0.25–16 | 16 |
| Levofloxacin | 0.12–32 | 32 | |
| Moxifloxacin | 0.06–16 | 16 | |
| Ciprofloxacin-susceptible MRSA (50) | Nemonoxacin | ≤0.03–0.06 | ≤0.03 |
| Ciprofloxacin-susceptible MRSA (44) | Nemonoxacin | ≤0.008–0.06 | 0.06 |
| Ciprofloxacin | ≤0.06–1 | 0.5 | |
| Levofloxacin | ≤0.06–0.25 | 0.25 | |
| Moxifloxacin | ≤0.015–0.12 | 0.06 | |
| Ciprofloxacin-resistant MRSA (100) | Nemonoxacin | 0.5–1 | 1 |
| Ciprofloxacin-resistant MRSA (47) | Nemonoxacin | 0.06–4 | 1 |
| Ciprofloxacin | 2 to >16 | >16 | |
| Levofloxacin | 0.5 to >16 | 16 | |
| Moxifloxacin | 0.12–8 | 4 | |
| Vancomycin-intermediate MRSA (50) | Nemonoxacin | 0.03–8 | 2 |
| Daptomycin-nonsusceptible MRSA (5) | Nemonoxacin | 0.5–8 | |
| Levofloxacin-susceptible MRSA (355) | Nemonoxacin | ≤0.008–0.12 | 0.06 |
| Ciprofloxacin | 0.06–4 | 1 | |
| Moxifloxacin | 0.06–0.25 | 0.12 | |
| Levofloxacin-nonsusceptible MRSA (147) | Nemonoxacin | 0.25–64 | 16 |
| Ciprofloxacin | 16 | 16 | |
| Moxifloxacin | 1–16 | 16 | |
| Community-acquired MRSA (101) | Nemonoxacin | ≤0.03–1 | 0.06 |
| Community-acquired MRSA (25) | Nemonoxacin | 0.015–2 | 0.5 |
| Ciprofloxacin | 0.25–16 | 16 | |
| Levofloxacin | 0.12–16 | 8 | |
| Moxifloxacin | 0.06–4 | 2 | |
| Hospital-acquired MRSA (99) | Nemonoxacin | 0.015–64 | 16 |
| Ciprofloxacin | 0.5–16 | 16 | |
| Levofloxacin | 0.25–32 | 32 | |
| Moxifloxacin | 0.06–16 | 16 | |
| Coagulase-negative | Nemonoxacin | 0.03–8 | 0.5 |
| Staphylococcus, methicillin-resistant (68) | Ciprofloxacin | 0.12 to >16 | >16 |
| Levofloxacin | 0.12 to >16 | 8 | |
| Moxifloxacin | 0.03 to >8 | 2 | |
| Methicillin-susceptible | Nemonoxacin | 0.015–4 | 0.5 |
| S. epidermidis (43) | Ciprofloxacin | 0.06–16 | 16 |
| Levofloxacin | 0.12–32 | 32 | |
| Moxifloxacin | 0.06–16 | 4 | |
| Methicillin-resistant | Nemonoxacin | 0.012–2 | 2 |
| S. epidermidis (9) | Ciprofloxacin | 8–16 | 16 |
| Levofloxacin | 4–32 | 32 | |
| Moxifloxacin | 1–16 | 16 | |
| E. faecalis (31) | Nemonoxacin | 0.12–4 | 4 |
| E. faecalis (81) | Nemonoxacin | 0.03–128 | 1 |
| Ciprofloxacin | 0.25–16 | 16 | |
| Levofloxacin | 0.25–32 | 32 | |
| Moxifloxacin | 0.06–16 | 16 | |
| E. faecium (19) | Nemonoxacin | 0.5–8 | 8 |
| E. faecium (38) | Nemonoxacin | 0.06–128 | 128 |
| Ciprofloxacin | 1–16 | 16 | |
| Levofloxacin | 1–32 | 32 | |
| Moxifloxacin | 0.25–16 | 16 | |
| Vancomycin-susceptible | Nemonoxacin | 0.12–32 | 0.5 |
| E. faecalis (50) | |||
| Vancomycin-resistant | Nemonoxacin | 0.12–8 | 4 |
| E. faecalis (34) | |||
| Vancomycin-susceptible | Nemonoxacin | 0.06–8 | 4 |
| E. faecium (50) | |||
| Vancomycin-resistant | Nemonoxacin | 0.06–16 | 16 |
| E. faecium (78) | |||
| E. coli (599) | Nemonoxacin | ≤0.015 to ≥512 | 32 |
| Ciprofloxacin | 0.06–16 | 16 | |
| Levofloxacin | 0.06–32 | 16 | |
| Moxifloxacin | 0.06–16 | 16 | |
| Ciprofloxacin-susceptible | Nemonoxacin | 0.015–4 | 2 |
| E. coli (37) | Ciprofloxacin | ≤0.06–1 | 1 |
| Levofloxacin | ≤0.06–2 | 1 | |
| Moxifloxacin | ≤0.015–2 | 1 | |
| Ciprofloxacin-resistant | Nemonoxacin | 2 to >16 | >16 |
| E. coli (43) | Ciprofloxacin | 2 to >16 | >16 |
| Levofloxacin | 1 to >16 | >16 | |
| Moxifloxacin | 2 to >8 | >8 | |
| K. pneumoniae (30) | Nemonoxacin | 0.25 to >16 | >16 |
| K. pneumoniae (199) | Nemonoxacin | ≤0.015–128 | 2 |
| Ciprofloxacin | 0.06–16 | 0.5 | |
| Levofloxacin | 0.06–32 | 1 | |
| Moxifloxacin | 0.06–16 | 1 | |
| K. oxytoca (30) | Nemonoxacin | 0.06–1 | 0.5 |
| Ciprofloxacin | 0.06–0.25 | 0.06 | |
| Levofloxacin | 0.06–0.25 | 0.06 | |
| Moxifloxacin | 0.06–0.25 | 0.12 | |
| E. cloacae (30) | Nemonoxacin | 0.5 to >16 | >16 |
| E. cloacae (72) | Nemonoxacin | 0.06–32 | 0.5 |
| Ciprofloxacin | 0.06–16 | 0.12 | |
| Levofloxacin | 0.06–32 | 0.25 | |
| Moxifloxacin | 0.06–16 | 0.25 | |
| P. mirabilis (30) | Nemonoxacin | 0.5 to >16 | >16 |
| P. mirabilis (33) | Nemonoxacin | 0.25 to ≥512 | 16 |
| Ciprofloxacin | 0.06–2 | 2 | |
| Levofloxacin | 0.06–32 | 4 | |
| Moxifloxacin | 0.12–16 | 16 | |
| P. aeruginosa (30) | Nemonoxacin | 1 to >16 | >16 |
| P. aeruginosa (137) | Nemonoxacin | ≤0.015 to ≥512 | 32 |
| Ciprofloxacin | 0.06–16 | 8 | |
| Levofloxacin | 0.06–32 | 16 | |
| Moxifloxacin | 0.06–16 | 16 | |
| A. baumannii (30) | Nemonoxacin | 0.06 to >16 | >16 |
| A. baumannii (15) | Nemonoxacin | 0.12–16 | 1 |
| Ciprofloxacin | 0.12–32 | 4 | |
| Levofloxacin | 0.06–16 | 1 | |
| Moxifloxacin | 0.06–4 | 0.5 | |
| S. maltophilia (26) | Nemonoxacin | 0.25–64 | 32 |
| Ciprofloxacin | 0.06–16 | 16 | |
| Levofloxacin | 0.06–16 | 8 | |
| Moxifloxacin | 0.12–8 | 4 | |
| C. freundii (30) | Nemonoxacin | 0.12 to >16 | 4 |
| Ciprofloxacin | ≤0.06 to >16 | 2 | |
| Levofloxacin | ≤0.06 to >16 | 2 | |
| Moxifloxacin | 0.12 to >8 | 8 | |