The Effects of 3% Trehalose Ophthalmic Solution on Corneal Epithelial Barrier Function
试验速览
- 阶段
- 4 期
- 状态
- 招募中
- 发起方
- 入组人数
- 30
- 试验地点
- 2
- 主要终点
- corneal epithelial permeability
研究概览
简要总结
The purpose of this research study is to evaluate the effects of trehalose, an ingredient found in commercially available artificial tears, on the corneal barrier function. The investigators will assess corneal dryness and measure the relative corneal epithelial "barrier" function (the degree to which the cornea can prevent penetration of sodium fluorescein dye into the eye) after using eye drops that contain 3% trehalose for one month.
详细描述
The aim of this study is to recruit moderate to severe dry eye subjects, enroll them in a randomized contralateral eye-controlled trial with an ophthalmic solution containing trehalose 3% in sterile borate buffered saline in one eye and sterile buffered saline in the contralateral eye. The investigators will accomplish this by enrolling a clinic-based sample, undertaking a standardized examination involving signs and symptoms of dry eye, fluorometry, as well as clinical tear and ocular surface measures at baseline and at one-month post-treatment.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Adult subjects, > age 18 years, with moderate-to-severe dry eye, defined as fitting criteria for dry eye stages 3 or 4 of the MGD Workshop Management and Treatment subcommittee report.
- •Subjects must have normal eyelid position and closure.
- •For enrollment as aqueous tear deficiency, subjects must have a Schirmer I result of < 5.0 mm wetting in 5 minutes without anesthesia.
排除标准
- •History or evidence of ocular or intraocular surgery in either eye within the past twelve months. LASIK and other kerato-refractive procedure patients can qualify if the most recent surgery or enhancement was 12 or more months prior.
- •History or evidence of serious ocular trauma in either eye within the past six months.
- •History of hypersensitivity to any component of the study medications.
- •History or evidence of epithelial herpes simplex keratitis (dendritic keratitis); vaccinia, active or recent varicella, viral disease of the cornea and/or conjunctiva; chronic bacterial disease of the cornea and/or conjunctiva; mycobacterial infection of the eye; and/or fungal disease of the eye.
- •History or evidence of active ocular allergy.
- •Females who are pregnant, nursing, or planning a pregnancy during the study.
- •Evidence of greater than mild eyelid deformity (e.g., ectropion, entropion, ptosis).
- •Use of concomitant topical ocular medications during the study duration.
- •Individuals using systemic steroids, immunosuppressive agents and/or anti-cholinergic (e.g. cold and allergy medications, tricyclic antidepressants) for treatment of autoimmune connective tissue disease may not be enrolled in the study if they have not been on a stable dosing regimen for a minimum of 30 days prior to the visit.
- •Individuals with uncontrolled diabetes or history or evidence of peripheral neuropathy.
- •Active intraocular inflammatory conditions such as iritis.
- •Individuals wearing rigid gas permeable or scleral contact lenses within the previous six months of enrollment. Subjects can have worn soft lenses, but not within one month prior to enrollment.
- •Individuals using punctual plugs inserted within 30 days of study start.
研究组 & 干预措施
OS eye receives 3% trehalose drops and OD eye receives control drops
干预措施: 3% trehalose (Drug)
OD eyes receives 3% trehalose drops and OS eye receives control drops
干预措施: 3% trehalose (Drug)
结局指标
主要结局
corneal epithelial permeability
时间窗: from enrollment to end of treatment at 4 weeks
The investigators will measure the relative corneal epithelial barrier function (the degree to which the cornea can prevent penetration of sodium fluorescein dye into the eye) after using eye drops that contain 3% trehalose for one month.
次要结局
未报告次要终点
研究者
Shora Ansari
Principal Investigator
Southern California College of Optometry at Marshall B. Ketchum University