Hmmmm, I just found a catch to the article I just referred to.
It turns out that one of the tested bromodomain inhibitors is ABBV-744. ABBV-744 is a highly specific BD2 inhibitor - even more specific than Apabetalone. ABBV-744 was NOT found to be effective.
The authors ascribe the lack of effect of ABBV-744 to ABBV-744 being an androgen receptor inhibitor - that explanation is probably a misunderstandig by the authors. Thus, a cursory search of ABBV-744 does not suggest that ABBV-744 inhibits the androgen receptor, although ABBV-744 has been reported to have an effect on Androgen Receptor driven prostate cancer.
While I remain optimistic that Apabetalone has a positive effect on atherosclerosis/heart failure, I cannot say that the article I just referenced supports that Apabetalone prevents cardiac dysfunction in COVID19.
BR
BKC