Skip to main content
. Author manuscript; available in PMC: 2014 Jun 5.
Published in final edited form as: Contemp Clin Trials. 2012 Apr 25;33(5):949–958. doi: 10.1016/j.cct.2012.04.007

Table 4.

Percent of Trials Recommending a Dose Level as the MTD and Average Trial Sample Size when the Same TNETS (0.476) is used in all Scenarios.

Dose level Percent of Trials Recommending Dose Level d as the MTD
All scenarios (1 to 5) Scenario 1 Scenario 2 Scenario 3 Scenario 4 Scenario 5
EWOC* EWOC-NETS**
All 6 dose levels over toxic*** 0 0 0 0 0 37
1 6 1 0 6 0 59
2 24 12 5 45 0 4
3 46 65 24 42 1 0
4 22 22 65 7 31 0
5 2 0 6 0 65 0
6 0 0 0 0 3 0
All 6 dose levels under toxic**** 0 0 0 0 0 0
Sample size Mean (SD) 25.8 (7.7) 22.7 (6.1) 21.9 (4.8) 23.4 (6.9) 22.5 (6.6) 23.4 (5.7)
*

EWOC is targeted with TTL ≤ 0.33.

**

EWOC-NETS is targeted with same TNETS for all 5 scenarios.

***

:All the 6 pre-specified dose levels are determined to be over toxic and the recommend MTD from simulation trial is a dose lower than the lowest pre-specified dose level (level 1).

****

: All the 6 pre-specified dose levels are determined to be under toxic and the recommend MTD from simulation trial is a dose higher than the highest pre-specified dose level (level 6).