This kind of covers the varient field and everyone who has been on the sideline should read what it says, doesn't appear there are any varients as far as Brilacidin is concerned:
Brilacidin Human Coronavirus (H-CoV) Research: Scientists conducting laboratory testing of Brilacidin in endemic H-CoV strains (OC43, 229E, NL63) have informed the Company that they are reviewing potential venues to disseminate their findings, including conferences, via publication or through public release by the Company. These data show Brilacidin inhibits different H-CoV strains, supporting Brilacidin as a pan-coronavirus agent.
some May be wishing they had bought earlier.