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Table 1 Boundaries of posterior probabilities of efficacy for stopping accrual and for final analysis decisions

From: The design of a Bayesian adaptive clinical trial of tranexamic acid in severely injured children

Total sample size Brain Torso Both
Efficacy Futility Efficacy Futility Efficacy Futility
1000 0.990 0.050 0.980 0.050 0.975 0.050
1250 0.990 0.100 0.980 0.100 0.975 0.100
1500 0.990 0.150 0.980 0.150 0.975 0.150
1750 0.990 0.200 0.980 0.200 0.975 0.200
Final analysis 0.981 0.250 0.978 0.250 0.975 0.250