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. 2015 May 26;8:147–161. doi: 10.2147/IDR.S48813

Table 1.

Clinical efficacy studies of tetracycline/doxycycline, alone or versus macrolides, for treatment of Mycoplasma genitalium infection

Reference Year Study type Population M. genitalium cases (n) Tetracycline regimen(s) and M. genitalium microbiological cure Macrolide regimen and M. genitalium microbiological cure
Horner et al10 1993 Prospective case–control study 164 men with/without NGU attending an STI clinic, UK 27 men DOXY 200 mg d 1, 100 mg d 2–d 9
10/14 cured (71.4%)
Not applicable
Johannisson et al18 2000 Uncontrolled observational study 233 men and 85 women attending STI clinics, Sweden 18 men
3 women
TET 500 mg 12 hourly ×10 d
5/13 men cured (38.5%)
0/1 women cured (0%)
Not applicable
Gambini et al19 2000 Prospective study with treatment varying by room 201 men with/without NGU attending an STI clinic, Italy 53 men DOXY 200 mg/day ×7 d
33/35 cured (94.3%)
AZM 1 g stat
14/17 cured (82.4%)
Falk et al17 2003 Uncontrolled observational study 519 men and 464 women attending an STI clinic, Sweden 34 men
26 women
DOXY 200 mg d 1, 100 mg d 2–d 9 or LYME 300 mg 12 hourly ×10 d
Men: 6/16 cured (37.5%)
Women: 4/14 cured (28.6%)
AZM 500 mg d 1, 250 mg d 2–d 5
Men: 16/16 cured (100.0%)
Women: 20/20 cured (100.0%)
Björnelius et al20 2008 Uncontrolled observational study 152 men with NGU and 60 women with cervicitis attending 6 STI clinics, Norway and Sweden 152 men
60 women
DOXY 200 mg (d 1), 100 mg (d 2–d 9)
Men: 13/76 cured (17.1%)
Women: 10/27 (37.0%)
AZM 1 g stat
Men: 33/39 cured (84.6%)
Women: 15/17 cured (88.2%)
Mena et al21 2009 Randomized controlled trial 398 men with NGU attending an STI clinic, USA 78 men DOXY 100 mg 12 hourly ×7 d
14/31 cured (45.2%)
AZM 1 g stat
20/23 cured (87.0%)
Schwebke et al22 2011 Randomized controlled trial 305 men with NGU attending 4 STI clinics, USA 94 men DOXY 100 mg 12 hourly ×7 d (± tinidazole 2 g stat)
12/39 cured (30.8%)
AZM 1 g stat (± tinidazole 2 g stat)
30/45 cured (66.7%)
Manhart et al23 2013 Randomized controlled trial 606 men with NGU attending an STI clinic, USA 80 men DOXY 100 mg 12 hourly ×7 d (+ AZM placebo)
8/27 cured (29.6%, mITT)
AZM 1 g stat (+ DOXY placebo)
15/38 cured (39.5%, mITT)

Abbreviations: M. genitalium, Mycoplasma genitalium; NGU, non-gonococcal urethritis; STI, sexually transmitted infection; DOXY, doxycycline; TET, tetracycline; LYME, lymecycline; AZM, azithromycin; d, day/days; mITT, modified intention to treat population.