Specific examples of Male Birth Control Being Tested & Reasons Behind Delay

Hi, I found your topic extremely interesting! I read an article about this by Vox a few months ago which I think you might find helpful. Although you explain the general idea behind new research for male birth control, you don't provide specific examples on the methods currently being tested. This article linked below discusses a gel, male birth control pill and non surgical vasectomy which could be interesting for you to highlight in your article. It also provides reasons as to why it has taken so long for researchers to develop and get these drugs or methods approved and on the market.

https://www.vox.com/2018/4/4/17170262/male-birth-control-explained