title: Clinical and microbiological outcomes in treatment of men with non-gonococcal urethritis with a 100-mg twice-daily dose regimen of sitafloxacin.
abstract: Several microorganisms cause non-gonococcal urethritis (NGU). Failure to eradicate Mycoplasma genitalium from the urethra could be associated with persistent or recurrent urethritis; thus, the choice of antibiotics with activities potent enough to eradicate M. genitalium is crucial in the treatment of NGU. In in vitro studies, sitafloxacin has been shown to be highly active against Chlamydia trachomatis and M. genitalium. We treated 89 males with NGU, including 15 patients with persistent or recurrent NGU and 1 patient with post-gonococcal urethritis, with a 100-mg twice-daily dose regimen of sitafloxacin to assess its efficacy against NGU. We examined first-void urine samples for the presence of C. trachomatis, M. genitalium, Ureaplasma parvum, and Ureaplasma urealyticum. After treatment, we evaluated 73 patients for clinical outcomes and 44 for microbiological outcomes. Symptoms were alleviated in 62 (84.9%) patients, who were judged clinically cured. Microorganisms detected before treatment were eradicated in 42 (95.5%) patients, who were judged microbiologically cured. Regarding microbiological outcomes of specific microorganisms, eradication rates of C. trachomatis (n = 33), M. genitalium (n = 11), and U. urealyticum (n = 10) were 100%, 100%, and 80.0%, respectively. In all 5 patients with M. genitalium-positive persistent or recurrent NGU who had experienced treatment failures with antibiotics, the mycoplasma was eradicated. These results suggested that the sitafloxacin regimen used, which was effective on both M. genitalium and C. trachomatis infections, could be useful as an appropriate option as first- and second-line treatment of NGU.
authors.affiliation: iClinic, 7-19-26 Naga-machi, Taihaku-ku, Sendai 982-0011, Japan.
authors.forename: Shin
authors.initials: S
authors.lastname: Ito
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Yasuda
authors.forename: Kensaku
authors.initials: K
authors.lastname: Seike
authors.forename: Takashi
authors.initials: T
authors.lastname: Sugawara
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Tsuchiya
authors.forename: Shigeaki
authors.initials: S
authors.lastname: Yokoi
authors.forename: Masahiro
authors.initials: M
authors.lastname: Nakano
authors.forename: Takashi
authors.initials: T
authors.lastname: Deguchi
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000900:Anti-Bacterial Agents / Q000008:administration & dosage*; D002692:Chlamydia trachomatis / Q000302:isolation & purification; D024841:Fluoroquinolones / Q000008:administration & dosage*; D016905:Gram-Negative Bacterial Infections / Q000188:drug therapy* / Q000382:microbiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D045704:Mycoplasma genitalium / Q000302:isolation & purification; D016896:Treatment Outcome; D016990:Ureaplasma urealyticum / Q000302:isolation & purification; D014526:Urethritis / Q000188:drug therapy* / Q000382:microbiology
chemical_list: D000900:Anti-Bacterial Agents; D024841:Fluoroquinolones; C076246:sitafloxacin