• J Microbiol Immunol Infect · Oct 2019

    Randomized Controlled Trial

    Integrated safety summary of phase II and III studies comparing oral nemonoxacin and levofloxacin in community-acquired pneumonia.

    • Shih-Lung Cheng, Ren-Guang Wu, Yin-Ching Chuang, Wann-Cherng Perng, Shih-Ming Tsao, Yu-Ting Chang, Li-Wen Chang, and Ming-Chu Hsu.
    • Department of Internal Medicine, Far-Eastern Memorial Hospital, Taipei, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan.
    • J Microbiol Immunol Infect. 2019 Oct 1; 52 (5): 743-751.

    BackgroundNemonoxacin, a novel nonfluorinated quinolone, has broad-spectrum antibacterial activity, including activity against antibiotic-resistant strains, and was developed for treating community-acquired pneumonia (CAP). This report provides an integrated safety summary of oral nemonoxacin from two phase II and one phase III clinical studies.MethodsPatients with mild CAP were randomized for treatment with nemonoxacin 500 mg (NEMO-500MG), nemonoxacin 750 mg (NEMO-750MG), or levofloxacin 500 mg (LEVO), orally, once daily, for 7-10 days. Hematological, gastrointestinal, and hepatic disorders; electrocardiography abnormalities; and reported quinolone-associated clinical concerns were included in this analysis.ResultsA total of 520, 155, and 320 subjects were assigned to receive NEMO-500MG, NEMO-750MG, and LEVO, respectively. The incidence of adverse events (AEs) was the highest (54.8%) in the NEMO-750MG group (NEMO-500MG, 36.9%; NEMO-750MG, 54.8%; LEVO, 39.7%) and that of drug-related AEs was comparable between the three groups (NEMO-500MG, 22.9%; NEMO-750MG, 31.0%; LEVO, 22.5%). The majority (>80%) of the patients showed mild drug-related AEs and the distribution based on severity was similar between the groups. The most commonly reported drug-related AEs included neutropenia (NEMO-500MG, 2.5%; NEMO-750MG, 8.4%; LEVO, 4.4%), nausea (NEMO-500MG, 2.5%; NEMO-750MG, 7.1%; LEVO, 2.5%), leukopenia (NEMO-500MG, 2.3%; NEMO-750MG, 4.5%; LEVO, 3.1%), and increased alanine aminotransferase level (NEMO-500MG, 4.4%; NEMO-750MG, 0%; LEVO, 2.5%).ConclusionNemonoxacin was well tolerated and no clinically significant safety concerns were identified, suggesting that it possesses a desirable safety and tolerability profile similar to that of levofloxacin, and may be a suitable alternative to fluoroquinolones for treating patients with CAP.Copyright © 2019. Published by Elsevier B.V.

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