advertisement
Abstract #6178 Published in IGR 2-2
A pooled-data analysis of three randomized, double-masked, six-month clinical studies comparing the intraocular pressure reducing effect of latanoprost and timolol
Hedman K; Alm AEuropean Journal of Ophthalmology 2000; 10: 95-104
PURPOSE: To compare the intraocular pressure (IOP) reduction by latanoprost and timolol, and to study factors of prognostic value for assessing this reduction. METHODS: The authors analyzed 829 patients included in three phase III studies comparing six months' treatment with 0.005% latanoprost once daily and 0.5% timolol twice daily in patients with open-angle glaucoma or ocular hypertension. Analysis of covariance controlled for differences in baseline IOP and sex was used to assess the IOP reduction. RESULTS: Latanoprost reduced diurnal IOP (average of morning, noon and afternoon assessments) by 7.7 mmHg (31%) and timolol by 6.5 mmHg (26%) after six months of treatment. Thus, diurnal IOP was reduced 1.2 mmHg (18%) more with latanoprost than with timolol (p < 0.001). Latanoprost-treated patients showed a further decrease in morning IOP of 0.7 mmHg (9%, p < 0.001) from the initial morning IOP reduction obtained at two weeks. No such further decrease in IOP was seen with timolol. Higher baseline diurnal IOP resulted in a larger diurnal reduction during treatment with both drugs (p < 0.001). Diurnal IOP in women was reduced 0.7 mmHg (11%) less than males with both drugs (p < 0.001). CONCLUSIONS: Latanoprost was more effective than timolol in reducing mean diurnal IOP. The effect after two weeks was maintained for timolol while with latanoprost there was a further, significant IOP reduction from two weeks to six months. Baseline IOP was the only factor of clinical importance found to be of prognostic value for assessing the IOP reduction.
Dr. K. Hedman, Pharmacia and Upjohn, S-112 87 Stockholm, Sweden
Classification:
11.3.4 Betablocker (Part of: 11 Medical treatment > 11.3 Adrenergic drugs)
11.4 Prostaglandins (Part of: 11 Medical treatment)
