ABSTRACT
Recently, a new latanoprost ophthalmic solution containing cyclodextrins was developed. The purpose of the present work was to compare the stability, clinical efficacy, and adverse effect profile of this formulation with the innovator product. The innovator formulation was stable at 4 degrees C but exhibited degradation at higher temperatures, whereas the cyclodextrin-containing formulation was stable at temperatures up to 40 degrees C. Formulations were assayed in a randomized double-blind clinical study in patients with primary open-angle glaucoma and/or ocular hypertension. Both latanoprost ophthalmic solutions produced comparable reduction of intraocular pressure. Conjunctival hyperemia was observed in 11.9% and 11.3% of the patients treated with the innovator and the cyclodextrin-containing formulations, respectively. There were no significant differences between the 2 ophthalmic solutions in efficacy or in the measured adverse effect. It is concluded that these 2 latanoprost ophthalmic solutions yield comparable efficacy and adverse effect outcomes. The cyclodextrin-containing formulation, however, has an improved stability.
Subject(s)
Cyclodextrins/chemistry , Hyperemia/chemically induced , Prostaglandins F, Synthetic/adverse effects , Prostaglandins F, Synthetic/therapeutic use , Temperature , Aged , Conjunctiva/blood supply , Conjunctiva/pathology , Double-Blind Method , Drug Stability , Female , Glaucoma, Open-Angle/drug therapy , Humans , Latanoprost , Male , Middle Aged , Ocular Hypertension/drug therapy , Ophthalmic Solutions , Prostaglandins F, Synthetic/chemistryABSTRACT
En este trabajo se presenta un caso más de gnatostomiasis ocular registrado en México. El parásito vivo se extrajo quirúrgicamente del ojo izquierdo del paciente, presentaba movimientos activos, tratándose de la forma larvaria de un nemátodo del género Gnathostoma, este caso representa el sexto registrado en México.