Abstract
Tafluprost is a new prostaglandin F(2alpha) (PGF(2alpha)) derivative in development for the treatment of glaucoma. Tafluprost is the first PGF(2alpha) analogue with a preservative-free formulation. This randomized, investigator-masked, multicentre, crossover phase III study evaluated the pharmacodynamics and safety of preserved and preservative-free tafluprost 0.0015% eyedrops administered for 4 weeks in 43 patients with open-angle glaucoma or ocular hypertension. The primary variable was change from baseline in overall diurnal intraocular pressure (IOP) at 4 weeks. Adverse events and other safety parameters were also analysed. Decreased IOP was clearly observed with both formulations at week 1 and was sustained until week 4. The overall treatment difference (preservative-free versus preserved formulations) at week 4 was 0.01 mmHg (95% confidence interval - 0.46 to 0.49; p = 0.96). There were no unexpected safety-related findings. Both formulations were well tolerated and most adverse events were ocular and mild in severity. THE reduction in IOP achieved by preservative-free tafluprost is equivalent to that obtained with the preserved formulation. The preservative-free formulation was generally well tolerated.
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