The Dry Eye Zone

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Abstract: Diquafosol vs. sodium hyaluronate

Hm... I wonder what the osmolarity figures would have been for the two groups.


AIMS:
To compare the efficacy and safety of 3% diquafosol ophthalmic solution with those of 0.1% sodium hyaluronate ophthalmic solution in dry eye patients, using mean changes in fluorescein and rose bengal staining scores as endpoints. TRIAL
DESIGN AND METHODS:
In this multicenter, randomised, double-masked, parallel study of 286 dry eye patients with fluorescein and rose bengal staining scores of ≥3 were randomised to the treatment groups in a 1:1 ratio. Efficacy and safety were evaluated after drop-wise instillation of the study drug, six times daily for 4 weeks.
RESULTS:
After 4 weeks, the intergroup difference in the mean change from baseline in fluorescein staining score was -0.03; this verified the non-inferiority of diquafosol. The mean change from baseline in rose bengal staining score was significantly lower in the diquafosol group (p=0.010), thus verifying its superiority. The incidence of adverse events was 26.4% and 18.9% in the diquafosol and sodium hyaluronate groups, respectively, with no significant difference.
CONCLUSIONS:
Diquafosol (3%) and sodium hyaluronate (0.1%) exhibit similar efficacy in improving fluorescein staining scores of dry eye patients, whereas, diquafosol exhibits superior efficacy in improving rose bengal staining scores. Diquafosol has high clinical efficacy and is well tolerated with a good safety profile.

Br J Ophthalmol. 2012 Oct;96(10):1310-1315. Epub 2012 Aug 21.
Takamura E, Tsubota K, Watanabe H, Ohashi Y; for The Diquafosol Ophthalmic Solution Phase 3 Study Group.
Source
Department of Ophthalmology, Tokyo Women's Medical University, School of Medicine, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan; takamura@oph.twmu.ac.jp.

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