Travoprost – a new prostaglandin analogue for the treatment of glaucoma

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Abstract
Travoprost, a highly selective and potent analogue of the prostaglandin PGF2 α, has recently been approved and marketed as a topical ocular hypotensive agent for the treatment of ocular hypertension and glaucoma. Following absorption into the eye, the free acid form of travoprost interacts with the endogenous FP prostanoid receptor to enhance aqueous humor outflow and lower intraocular pressure (IOP). Travoprost is distinguished from other marketed prostaglandin analogues in that it is a full agonist at the prostaglandin receptor. It is also highly selective with little or no affinity for other prostanoid or non-prostanoid receptors in the eye. Travoprost provides robust lowering of IOP with little diurnal fluctuation and results in low target pressures in a large percentage of patients. In controlled clinical trials, travoprost 0.004% o.d. used as monotherapy produced greater IOP reduction than timolol 0.5% b.i.d. and equal or greater reduction than latanoprost 0.005% o.d. Travoprost 0.004% was also show...