From: Ethical and scientific considerations for patient enrollment into concurrent clinical trials
Co-enrollment fraction | Event rate for arm S1 | Event rate for arm S2 | Difference | Number of patients per arm for 90% power |
---|---|---|---|---|
0% | 7.22 | 8.38 | -1.16 | 11,219 |
30% | 7.24 | 8.36 | -1.11 | 12,209 |
50% | 7.26 | 8.34 | -1.08 | 12,943 |
70% | 7.28 | 8.32 | -1.05 | 13,746 |
100% | 7.30 | 8.30 | -1.00 | 15,097 |