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. 2020 Jan 30;9(2):96–105. doi: 10.1002/psp4.12487

Table 1.

Model estimates for three models based on the weekly spaced data set

Model Parameters Estimate SE, covariance step RSE (%), covariance step SE, bootstrapping RSE (%), bootstrapping Median (95% CI), bootstrapping
POa k eo 0.034   4.9   13.8 0.034 (0.026, 0.046)
B 1 −4.03 0.20   0.36   −4.09 (−4.90, −3.49)
B 2B 1 −4.33   4.9   13.8 −4.37 (−5.72, −3.39)
Slope 20.0   12.1   14.3 20.4 (15.4, 26.5)
CV% (slope) 78.9   12.4   15.0 78.0 (57.8, 101.3)
DTMMb B 1,0 −5.48 0.40   0.43   −5.54 (−6.53, −4.83)
B 2,0B 1,0 −1.58   15.5   15.8 −1.60 (−2.17, −1.19)
B 1,1 1.35 0.22   0.19   1.33 (0.97,1.71)
B 2,1B 1,1 −9.86   7.7   18.5 −9.88 (−19.90, −8.53)
B 1,2 0.394 0.33   0.38   0.352 (−0.454, 1.083)
B 2,2B 1,2 −0.0966 (fix)   NA   NA NA
Slope 18.8   12.4   13.2 19.1 (14.8, 24.9)
CV% (slope) 21.1   28.7   23.7 20.4 (9.63, 29.95)
CTMMc Slope01 0.053   21.6   23.4 0.053 (0.031, 0.077)
Slope10 32.14   50.1   40.8 36.60 (14.30, 75.19)
Slope02 0.014   39.3   35.6 0.013 (0.006, 0.024)
Slope20 8.94   41.3   23.0 9.87 (5.99, 14.88)
Slope12 0.1 × Slope01   NA   NA NA
K 10 0.115   44.6   45.5 0.141 (0.068, 0.368)
K 20 K10   NA   NA NA
K 21 0.01 × K10   NA   NA NA
CV% (slope01) 86.0   35.9   68.3 87.8 (41.6, 199.8)
CV% (slope10) 97.5   39.2   39.1 100.5 (71.7, 183.4)
CV% (slope02) 146.3   17.6   18.4 139.3 (89.3, 189.8)
CV% (slope20) 80.4   33.4   39.5 79.7 (19.2, 139.8)

Only the parameter estimates related to the adverse event analysis were included in the table. The parameter estimates related to the pharmacokinetics of vismodegib was included in Model S1 .

CI, confidence interval; Median (95% CI) bootstrapping, median and 95% CI from “percentile confidence intervals” (bootstrap_results.csv); NA, not applicable; RSE, relative standard error; SE, standard error.

a K eo is shown on a normal scale but was estimated in the log domain. The RSE% presented in “RSE (%) covariance step” or “RSE% bootstrapping” is the SE of the logged parameter *100 that is approximately equal to the RSE% of the parameter on the normal domain. Bm, baseline of logit probability for AE ≥ m (m = 1, 2/3); coefficient of variation (CV%) (parameter), standard deviation of the interindividual variability for certain parameter that derived by “sqrt(omega)*100”; PO, proportional odds model; RSE% bootstrapping, relative standard error from bootstrapping that was derived by “(bootstrap SD/median)*100”, bootstrap SD is the standard deviation of parameter estimates that is “standard.errors”; RSE% for CV% are derived by RSE% for omega/2 for the RSE% from covariance step and bootstrapping; RSE (%) covariance step, relative standard error from nonlinear mixed‐effect modeling (NONMEM) covariance step; SE bootstrapping, “standard.errors” from bootstrapping results (bootstrap_results.csv) (same as SE covariance step, only apply to B1); SE covariance step, standard error from NONMEM covariance step (only apply to B1 as it can take either positive or negative value; RSE by SE/THETA is not a proper measure of uncertainty in this case); Slope, population mean increase in Logit(P(AEi,jm)) per unit increase in exposure. bSE covariance step and SE bootstrapping were only applied to B 1,0, B 1,1, B 1,2, as they can take either positive or negative value (same as B1 for the PO model). Bm,k, baseline of Logit[P(AEi,jm)], given the preceding grade k; B 2,2B 1,2, the transition probability in logit scale from grade 2/3 to 1, which was fixed to the estimated value (−0.0966) with no change in the objective function values; DTMM, discrete‐time Markov model. cAll of the slope parameters and K 10 are shown on normal scale but were estimated in the log domain. The RSE% presented in “RSE (%) covariance step” or “RSE% bootstrapping” are the SE of the logged parameter *100 that is approximately equal to the RSE% of the parameter on the normal domain. CTMM, continuous‐time Markov model; Slopeg1g2, slope for transition g1g2, with g1 as the preceding grade and g2 as the current grade; K g1g2, baseline of KTbackward_g1g2 without treatment (KTbackward_g1g2, first‐order transfer rate constant from high to low grade (g1>g2)).