title: Efficacy and tolerability of a large scale change in regimen from latanoprost to travoprost in glaucoma patients at the Manhattan Veterans Administration Hospital.
abstract: OBJECTIVE
  This retrospective study was designed to investigate the efficacy and tolerability of travoprost 0.004% substituted for latanoprost 0.005% in glaucoma patients at the Manhattan Veterans Administration Hospital.
  
  
  METHODS
  We conducted a chart review of patients with stable intraocular pressure (IOP) undergoing a formulary change in regimen from latanoprost 0.005% to travoprost 0.004%. Diagnoses included primary open angle glaucoma, ocular hypertension, pigment dispersion glaucoma, and pseudoexfoliation glaucoma.
  
  
  METHODS
  The primary outcome measures were IOP change between baseline and 6 months and patient-reported adverse events throughout the study.
  
  
  RESULTS
  In the single therapy group (N = 60 eyes), the mean baseline IOP on latanoprost was 15.8 mmHg; after 6 months on travoprost, it was 14.9 mmHg (p < 0.1). In the concomitant therapy group (N = 126 eyes), the mean baseline IOP was 16.7 mmHg; after 6 months on travoprost, it was 15.9 mmHg (p < 0.01). A reduction of IOP >/= 3 mmHg occurred in 28 eyes of 21 patients at 6 months. An increase of IOP >/= 3 mmHg occurred in 5 eyes of 4 patients at 6 months. One patient was switched back to latanoprost due to irritation at 3 months. No other patient-reported adverse events, including increased hyperemia, were observed throughout the follow-up period.
  
  
  CONCLUSIONS
  A change in therapeutic regimen from latanoprost 0.005% to travoprost 0.004% maintained IOP control in stable patients, and in some produced a further reduction in IOP. A change in therapy from latanoprost to travoprost was effective and well-tolerated for the glaucoma patients in this study.
authors: New York University, New York, NY; Manhattan Veterans Administration Hospital, New York, NY; New York Medical College, Valhalla, NY, USA. idoc105@optonline.net
authors: Edmund P
authors: EP
authors: Farris