INTERACT@ was an open , blinded endpoint , randomized controlled trial in @,@ patients with ICH within @ hours of onset and elevated systolic BP ( SBP ) ( @-@ mm Hg ) who were allocated to receive intensive ( target SBP < @ mm Hg within @ hour , with lower limit of @ mm Hg for treatment cessation ) or guideline-recommended ( target SBP < @ mm Hg ) BP-lowering treatment .