Table 5.
Scenario | Dose levelb | Probability of DLTs for the dose | ANETS for the dose | Percentages (%) the dose chosen as MTD | |||
---|---|---|---|---|---|---|---|
| |||||||
EIDc | IDd | Standardd | CRMd | ||||
Target-Scenario | 1 | 0.08 | 0.34 | 12 | 16 | 45 | 10 |
2 | 0.24 | 0.43 | 33 | 34 | 33 | 34 | |
3 | 0.33 | 0.48 | 35 | 34 | 17 | 35 | |
4 | 0.44 | 0.54 | 17 | 14 | 4 | 19 | |
5 | 0.56 | 0.61 | 3 | 2 | 0.4 | 2 | |
6 | 0.76 | 0.71 | 0.1 | 0 | 0 | 0 | |
Under-Toxic-Scenario | 1 | 0.08 | 0.27 | 37 | 16 | 45 | 10 |
2 | 0.24 | 0.36 | 15 | 34 | 33 | 34 | |
3 | 0.33 | 0.41 | 30 | 34 | 17 | 35 | |
4 | 0.44 | 0.48 | 36 | 14 | 4 | 19 | |
5 | 0.56 | 0.56 | 15 | 2 | 0.4 | 2 | |
6 | 0.76 | 0.67 | 1 | 0 | 0 | 0 | |
Over-Toxic-Scenario | 1 | 0.08 | 0.41 | 36 | 16 | 45 | 10 |
2 | 0.24 | 0.49 | 40 | 34 | 33 | 34 | |
3 | 0.33 | 0.53 | 20 | 34 | 17 | 35 | |
4 | 0.44 | 0.59 | 4 | 14 | 4 | 19 | |
5 | 0.56 | 0.65 | 0.3 | 2 | 0.4 | 2 | |
6 | 0.76 | 0.75 | 0 | 0 | 0 | 0 |
DLT: dose limiting toxicity. MTD: maximum tolerated dose. EID: extended isotonic design. ID: isotonic design. ANETS: averaged normalized equivalent toxicity score.
The dose level in bold and with underline is the true MTD.
Designs treating toxicity response as quasi-continuous variable is targeted with TNETS≤0.476.
Designs treating toxicity response as binary variable is targeted with TTL≤0.33.