Table 4 |
||||
Change in IOP (mmHg) from baseline at weeks 1 to 3 (worse eye, ANCOVA, PP population) | ||||
Latanoprost concentration (μg/mL) | ||||
50 | 75 | 100 | 125 | |
Week 1 | ||||
8 a.m. IOP | ||||
N | 69 | 66 | 71 | 68 |
LS mean change (mmHg)* | −9.11 | −8.38 | −8.85 | −8.40 |
Adjusted difference in LS mean ± SEM^{†} | 0.73 ± 0.50 | 0.25 ± 0.50 | 0.71 ± 0.50 | |
(90% CI) | (−0.10, 1.57) | (−0.57, 1.07) | (−0.11, 1.54) | |
p-value^{‡} | 0.926 | 0.696 | 0.922 | |
4 p.m. IOP | ||||
N | 69 | 66 | 71 | 68 |
LS mean change (mmHg)* | −8.07 | −7.63 | −8.04 | −7.46 |
Adjusted difference in LS mean ± SEM^{†} | 0.44 ± 0.48 | 0.03 ± 0.47 | 0.61 ± 0.47 | |
(90% CI) | (−0.35, 1.22) | (−0.74, 0.79) | (−0.17, 1.38) | |
p-value^{‡} | 0.820 | 0.522 | 0.902 | |
Week 2 | ||||
8 a.m. IOP | ||||
N | 69 | 66 | 71 | 68 |
LS mean change (mmHg)* | −9.29 | −9.56 | −9.31 | −9.05 |
Adjusted difference in LS mean ± SEM^{†} | −0.27 ± 0.44 | −0.02 ± 0.43 | 0.24 ± 0.44 | |
(90% CI) | (−1.00, 0.46) | (−0.73, 0.70) | (−0.49, 0.96) | |
p-value^{‡} | 0.269 | 0.485 | 0.705 | |
4 p.m. IOP | ||||
N | 69 | 66 | 71 | 67 |
LS mean change (mmHg)* | −8.28 | −8.19 | −8.21 | −7.65 |
Adjusted difference in LS mean ± SEM^{†} | 0.08 ± 0.41 | 0.07 ± 0.40 | 0.63 ± 0.41 | |
(90% CI) | (−0.60, 0.76) | (−0.60, 0.73) | (−0.04, 1.30) | |
p-value^{‡} | 0.578 | 0.565 | 0.939 | |
Week 3 | ||||
8 a.m. IOP | ||||
N | 68 | 65 | 71 | 66 |
LS mean change (mmHg)* | −9.68 | −9.72 | −9.79 | −9.15 |
Adjusted difference in LS mean ± SEM^{†} | −0.04 ± 0.46 | −0.12 ± 0.45 | 0.53 ± 0.45 | |
(90% CI) | (−0.79, 0.71) | (−0.85, 0.62) | (−0.22, 1.28) | |
p-value^{‡} | 0.463 | 0.396 | 0.879 | |
4 p.m. IOP | ||||
N | 68 | 64 | 71 | 66 |
LS mean change (mmHg)* | −8.61 | −8.60 | −8.65 | −8.06 |
Adjusted difference in LS mean ± SEM^{†} | 0.01 ± 0.45 | −0.04 ± 0.44 | −0.55 ± 0.45 | |
(90% CI) | (−0.73, 0.76) | (−0.78, 0.68) | (−0.18, 1.29) | |
p-value^{‡} | 0.512 | 0.464 | 0.892 |
ANCOVA analysis of covariance, CI confidence interval, IOP intraocular pressure, LS least square, PP per protocol, SEM standard error of the mean.
*Adjusting for baseline IOP (covariate) with dose group and center as factors.
^{†}Higher concentration minus latanoprost 50 μg/mL; a negative difference in LS mean indicates that the higher concentration has a greater effect than latanoprost 50 μg/mL.
^{‡} One-sided p-value.
Eveleth et al.
Eveleth et al. BMC Ophthalmology 2012 12:9 doi:10.1186/1471-2415-12-9