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Table 2 Conditional power ranges of the promising zone

From: A systematic review of the “promising zone” design

CP lower boundary

CP upper boundary

0.3

0.95

0.3

0.9

0.3

0.9

0.3

0.8

0.36

0.8

0.38

0.8

0.385*

0.8

0.385*

0.8

0.385*

0.8

0.385*

0.8

0.385*

0.8

0.41

0.8

0.43

0.85

0.5

0.9

0.5

0.8

0.5

0.8

0.5

0.8

0.708

0.8

(Missing)

0.8

  1. Conditional power lower and upper boundaries of the promising zone for the 15 trials that provided conditional power ranges for the promising zone
  2. *Five trials from one centre all used the same CP range for the promising zone