Hello,
There have been no more recent RCTs to inform this issue.
Personally, in patients with well controlled BP who are on an ACEi or ARB, I no longer escalate the dosage of either nor add aldactone provided the ACR remains no greater than 50 mg / mmol (or so). I also would ensure such patients have had all other modifiable cardiovascular risk factors addressed because more than anything else, the finding of microalbuminuria identifies a patient at risk - even if it doesn't actually mediate this risk.
Dr. Jordan Weinstein