Month Brimonidine/ Timolol (n=1242) Dorzolamide/ Timolol (n=2868) β-blocker+Brimonidine (n=365) β-blocker+CAI (n=236) β-blocker+PGA (n=1025) CAI+Brimoni-dine (n=329) CAI+PGA (n=618) PGA+Brimonidine (n=1200)
1 100 100 100 100 100 100 100 100
2 100 100 100 100 100 100 100 100
3 100 100 100 100 100 100 100 100
4 100 100 96.7 90.7 95.7 92.4** 95.8 99.0
5 77.5 95.3 58.4 61.0 61.6 62.3 79.9 70.3*
6 64.1 50.2 45.8 49.2 49.9 44.7 54.9** 53.6
7 57.6 50.5** 38.9 42.8 44.5 38.0 48.9** 46.3
8 54.8 46.8** 36.2 33.9 40.8 35.0 44.5** 43.5
9 52.3 42.0 31.5 30.1 38.0 29.5 38.5 39.8
10 49.5 36.1 29.9 30.5 36.8 25.5 35.4 38.2
11 46.5 30.3 28.8 28.8 34.3 23.4 30.7 35.4
12 45.0 24.0 23.0 26.3 31.6 20.1 28.2 33.4
CAI: Carbonic Anhydrase Inhibitor; PGA: Prostaglandin Analogue *p<0.05; **p<0.01; p<0.001; p<0.0001 vs brimonidine/timolol
Table 3: Proportion of patients (%) with glaucoma on fixed-combination brimonidine/timolol versus fixed-combination dorzolamide/timolol or various two-bottle combinations of topical glaucoma therapy (with inclusion of restarts) each month for up to 12 months following the index prescription.