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. Author manuscript; available in PMC: 2015 Feb 6.
Published in final edited form as: Clin Trials. 2013 Aug 27;10(5):720–734. doi: 10.1177/1740774513497539

Table 1.

Simon’s Optimal Two-Stage design for each of the four patient groups

Group p0 p1 Stage 1 r1/n1 Stage 2 r/N
1 5% 20% 0/12 3/37
2 5% 20% 0/12 3/37
3 10% 30% 1/12 5/35
4 20% 40% 3/17 10/37