Each dose consisted of four pills of 500 mg of azithromycin or placebo and were labeled with a unique package identifier. Clinicians, research staff members, and patients were unaware of trial ...

From August 2016 through August 2019, we enrolled 625 men (314 in the doxycycline group and 311 in the azithromycin group ... their medication bottle for a pill count. Any participant who ...