Table VI.
Traditional Method | CRM with Escalation/De-escalation Decisions Based on Complete Cohorts | CRM with Escalation/De-escalation Decisions Based on Incomplete Cohorts | |||||
---|---|---|---|---|---|---|---|
Dose | Actual Toxicity Probability | Percent Chosen | Experimentation Percentage | Percent Chosen | Experimentation Percentage | Percent Chosen | Experimentation Percentage |
1 | 30% | 32.5% (55.1%)* | 74.3% | 43.5% (28.4%)* | 62.9% | 44.8% (28.0)* | 61.9% |
2 | 40% | 10.8% | 20.5% | 25.3% | 30.9% | 24.0% | 30.5% |
3 | 52% | 1.7% | 5.0% | 2.6% | 5.7% | 3.1% | 6.8% |
4 | 61% | 0% | 0.6% | 0.2% | 0.5% | 0.2% | 0.8% |
5 | 76% | 0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
6 | 87% | 0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
Median Sample Size (Range) | 9 (3–27) | 9 (2–26) | 10 (2–29) | ||||
Median % Toxicity (Range) | 33.3% (11–100%) | 35.7% (11–100%) | 37.5% (12–100%) | ||||
% of Trials Revisiting a Dose with ≥ 2 DLTs | - | 24.7% | 43.1% | ||||
% of Trials with ≥ 3 DLTs at a Dose | 29.8% | 29.1% | 36.2% |