did not reach statistical significanceP = 0.0553
A mixed-effect model, repeated measure analysis showed a statistically significant 1.26 mm Hg mean reduction in IOP in the AKB-9778 BID group compared to placebo ( P < 0.001; 95% CI = ‒0.62 to ‒1.90), whereas the 0.63 mm Hg reduction in the AKB-9778 QD group compared to placebo did not reach statistical significance ( P = 0.0553, 95% CI = 0.01 to ‒1.27).