This single-arm open-label pilot trial in Antwerp, Belgium, was ended early in accordance with the protocol because twice-daily gargling with chlorhexidine 0.2% for 6 days failed to eradicate Neisseria gonorrhoeae from the oropharynx of asymptomatic men who have sex with men (n = 3; efficacy of 0%; 95% confidence interval, 0%-56.1%).
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