Table 5:
Specifics of the TMLE group sequential testing procedure
| Ψ0 | Ψ1 | Imax |
| 1.264 | 1.664 | 57.927 |
| Step k | 1 | 2 | 3 | 4 |
| Rejection boundary | 2.734 | 2.305 | 2.005 | 1.715 |
| α-spending | 0.3125% | 0.9375% | 1.5625% | 2.1875% |
| Step k | 1 | 2 | 3 | 4 |
| Futility boundary | −0.976 | 0.132 | 0.961 | 1.715 |
| β-spending | 0.625% | 1.875% | 3.125% | 4.375% |