The FDA Ophthalmic Drugs Subcommittee advisory panel unanimously recommended
not to approve Allergan's Restasis for dry eye after concluding
that clinical trials involving almost 900 patients, did not show efficacy.
Allergan supplied phase 2 and phase 3 study data in its PMA application.
Wiley A. Chambers, MD, Deputy Director of Anti-inflammatory, Analgesic
and Ophthalmic Drug Products of the FDA chaired the meeting, and by the
end of the day the panel had decided that the trials, involving 877 dry
eye patients, showed no significant difference between cyclosporine
treatment and placebo. The studies looked at both dry eye
symptoms and signs, including corneal staining, and Schirmer testing.
This disappointing treatment study involved more dry eye patients
than any study preceding it, yet even with all these patients no therapeutic
effect for cyclosporine was observed. The company plans on studying
more patients to see if a subtle treatment effect was missed.