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Table 2 Parameter estimates for the three potential designs for the motivating example under the maximum sample size required to satisfy power. A simulation was performed to calculate expected sample size, Type I error and power

From: Generalizing boundaries for triangular designs, and efficacy estimation at extended follow-ups

Estimate Design 1 Design 2 Design 3
  (3 analyses) (4 analyses) (7 analyses)
Maximum sample size 86 86 102
Expected sample size under H0 46 44 43
Expected sample size under H1 49 49 48
Type I error 0.0471 0.0453 0.044
Power 0.962 0.964 0.976