Comparison of daytime efficacy and safety of dorzolamide/timolol maleate fixed combination versus latanoprost.
OBJECTIVE
To compare the 12-hour efficacy and safety of dorzolamide/timolol fixed combination (DTFC) dosed twice daily versus latanoprost dosed every evening following a timolol run-in in primary open-angle glaucoma patients.


METHODS
Following a 6-week timolol run-in patients were randomized to either DTFC or latanoprost for 6 weeks and then changed to the opposite treatment for 6 weeks. At the end of the run-in, and the end of each treatment period, the intraocular pressure (IOP) was measured every 2 hours between 8:00 AM and 8:00 PM.


RESULTS
Thirty-one patients completed at least one time point in both treatment periods. Both treatments reduced the IOP for the diurnal curve, and at each time point, from the timolol run-in baseline (p<0.0001). The 12-hour IOP on timolol was 22.1+/-2.8 mmHg, whereas on DTFC it was 18.1+/-2.8 and latanoprost 18.3+/-3.1 mmHg (p=0.4). Further, there was no statistical difference in IOP between treatments at any time point (p< or =0.1). There was no statistical difference for any individual adverse event between treatments (p>0.05).


CONCLUSIONS
This study suggests that following a timolol run-in both DTFC and latanoprost provide comparable daytime efficacy and safety.
Mulaney
J
J
Central Florida Eye Associates, Lakeland, FL, USA.
Sonty
S
S
Ahmad
A
A
Stewart
J A
JA
Stewart
W C
WC
D000368:Aged; D000959:Antihypertensive Agents / Q000008:administration & dosage* / Q000009:adverse effects; D002940:Circadian Rhythm; D004338:Drug Combinations; D005260:Female; D005902:Glaucoma, Open-Angle / Q000188:drug therapy*; D006801:Humans; D007429:Intraocular Pressure / Q000187:drug effects*; D000077338:Latanoprost; D008297:Male; D011446:Prospective Studies; D011461:Prostaglandins F, Synthetic / Q000008:administration & dosage* / Q000009:adverse effects; D013449:Sulfonamides / Q000008:administration & dosage* / Q000009:adverse effects; D013876:Thiophenes / Q000008:administration & dosage* / Q000009:adverse effects; D013999:Timolol / Q000008:administration & dosage* / Q000009:adverse effects; D014065:Tonometry, Ocular; D016896:Treatment Outcome
D000959:Antihypertensive Agents; D004338:Drug Combinations; D011461:Prostaglandins F, Synthetic; D013449:Sulfonamides; D013876:Thiophenes; D000077338:Latanoprost; D013999:Timolol; C062765:dorzolamide