Evaluation of the Efficacy and Safety of DM934 Versus Théalose on Eye Dryness

Inclusion criteria

• Subject with a moderate to severe dry eye syndrome needing artificial tears in the 3 months preceding the inclusion.
• Subject having used only artificial tears without preservative (NaCl 0.9%, Larmabak®) during 1 to 2 weeks before inclusion (up to 6 times a day) (given during wash-out period).
• Subject with a score ≥ 18 for the OSDI (Ocular Surface Disease Index).
• Subject with at least one eye with:

• Global ocular staining (cornea and conjunctiva) ≥4 and ≤9 on the Oxford scale (0 to 15)

AND one of the following criteria:

• Schirmer test ≥ 3 mm/5 min and ≤ 9 mm/5 min OR
• Sum of 3 measurements of Tear film Break-Up Time (TBUT) ≤ 30s.

• Subject, having given freely and expressly his/her informed consent.
• Subject who is able to comply with the study requirements, as defined in the present CIP, at the Investigator's appreciation.
• For applicable countries: subject being affiliated to a health social security system.
• Female subjects of childbearing potential should use a medically accepted contraceptive regimen since at least 12 weeks before the beginning of the study, during all the study and at least 1 month after the study end.

Exclusion criteria

• Far best corrected visual acuity < 1/10 (according to Snellen Chart)
• Subject with severe ocular dryness with one of these conditions:

• Eyelid or blinking malfunction
• Corneal disorders not related to dry eye syndrome
• Ocular metaplasia
• Filamentous keratitis
• Corneal neovascularization
• Subject with severe meibomian gland dysfunction (MGD).
• History of ocular trauma, infection or inflammation, not related to dry eye syndrome within the last 3 months prior to the inclusion.
• History of ocular allergy or ocular herpes within the last 12 months.
• Any troubles of the ocular surface not related to dry eye syndrome .
• Subjects who underwent ocular surgery, including laser surgery, in either eye within the last 6 months.
• Use of the following ocular treatments: isotretinoïd, cyclosporine, tacrolimus, sirolimus, pimecrolimus, punctual plugs during the month preceding the inclusion.
• Subjects who have received ocular therapy (either eye) with any ophthalmic medication, except tear substitutes, within 2 weeks prior to study start or expected to receive ocular therapy during the study.
• Any not stabilised systemic treatment, which can have an effect on performance or safety criteria, at the investigator appreciation.
• Pregnant or nursing woman or planning a pregnancy during the study.
• Subject deprived of freedom by administrative or legal decision.
• Subject in a social or health institution.
• Subject who is under guardianship or who is not able to express his/her consent.
• Subject being in an exclusion period for a previous study.
• Subject suspected to be non-compliant according to the Investigator's judgment.
• Subject wearing contact lenses during the study.