Vox has more info on this: http://www.vox.com/2016/11/2/13494126/male-birth-control-study http://www.vox.com/2016/11/2/13494126/male-birth-control-stu... The s

Vox has more info on this: http://www.vox.com/2016/11/2/13494126/male-birth-control-study http://www.vox.com/2016/11/2/13494126/male-birth-control-stu... The study was terminated after serious safety concerns. Over half of participants reported adverse effects.