Treatment of Dry Eye With Supplements
1 other identifier
interventional
N/A
1 country
1
Brief Summary
Dry eye syndrome (DES) is a highly prevalent ocular condition inducing an inflammatory response on the ocular surface. Common symptoms include ocular discomfort, visual impairment and instability of the tear film with potential damage to the ocular surface. In addition, an intact tear film is important to provide a smooth optical surface, to act as a barrier to pathogens, to nourish the epithelial cells of the ocular surface and to prevent exsiccation. Alterations in the tear film composition, which can have their origin in several conditions, lead to tear film hyperosmolarity or instability resulting in DES. Regardless of the cause of DES, chronic dryness of the ocular surface leads to an increased susceptibility to oxidative stress, which is triggered by reactive oxygen species (ROS). This results in cell damage and activation of the immune system, keeping up inflammatory processes . In order to prevent ROS damage, several micronutrients such as vitamin C, E, and certain carotenoids, omega-3 free fatty acids, flavonoids and minerals have been used because of their antioxidant capacities. Based on this knowledge the potential of these antioxidant dietary supplements has been discussed as a treatment option for DES. Preliminary data support the hypothesis that antioxidant supplementations, in particular, supplementation with omega 3 fatty acids may be beneficial for patients with DES. The purpose of the present study is to test the hypothesis that treatment with dietary supplements improves subjective and objective symptoms of DES.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
Started Jul 2011
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 25, 2011
CompletedFirst Posted
Study publicly available on registry
June 2, 2011
CompletedStudy Start
First participant enrolled
July 1, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
November 1, 2014
CompletedApril 15, 2015
November 1, 2014
3.3 years
May 25, 2011
April 14, 2015
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Improvement of subjective symptoms of dry eye syndrome
12 weeks
Break up time (BUT)
12 weeks
Secondary Outcomes (8)
Visual Acuity
12 weeks
Tear film osmolarity
12 weeks
OSI (Objective Scattering Index)
12 weeks
Schirmer I test
12 weeks
Staining of the cornea with fluorescein
12 weeks
- +3 more secondary outcomes
Interventions
Vitamac® Tag und Nacht Kapseln: Dosage 1 capsule Vitamac® Tag per day ingested in the morning, 1 capsule Vitamac® Nacht per day ingested in the evening. Vitamac® Tag: Lutein 12mg, Vitamin C 300mg, Zinc 10mg, ginkgo biloba 10mg, Flavinoids 25mg, Fishoil 300mg, administered for 12 weeks Vitamac® Nacht: Zeaxanthin 5mg, Vitamin E 60mg, Copper 1mg, Selen 20µg, Ginkgo Biloba 10mg, Flavinoids 25mg, Alpha Lipon acid 150mg), administered for 12 weeks
Eligibility Criteria
You may qualify if:
- Men and women aged over 18 years
- History of dry eye syndrome for at least 3 months
- Tear Break Up Time (BUT) \< 10 seconds or Schirmer I test \< 7 mm
- At least 2 symptoms of dry eye syndrome (foreign body sensation, burning, photophobia, blurred vision, pain, itching)
- Normal ophthalmic findings except dry eye syndrome
You may not qualify if:
- Participation in a clinical trial in the 3 weeks preceding the study
- Symptoms of a clinically relevant illness in the 3 weeks before the first study day
- Presence or history of a severe medical condition that will interfere with the study aim as judged by the clinical investigator
- Wearing of contact lenses
- Intake of dietary supplements in the 3 months preceding the study
- Glaucoma
- Treatment with corticosteroids in the 4 weeks preceding the study
- Topical treatment with any ophthalmic drug except topical lubricants in the 4 weeks preceding the study
- Ocular infection or inflammation
- Ocular surgery in the 3 months preceding the study
- Sjögren's syndrome
- Stevens-Johnson syndrome
- Pregnancy, planned pregnancy or lactating
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Department of Clinical Pharmacology, Medical University Vienna
Vienna, 1090, Austria
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Doreen Schmidl, MD
Department of Clinical Pharmacology,Medical University of Vienna
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- BASIC SCIENCE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
Study Record Dates
First Submitted
May 25, 2011
First Posted
June 2, 2011
Study Start
July 1, 2011
Primary Completion
November 1, 2014
Study Completion
November 1, 2014
Last Updated
April 15, 2015
Record last verified: 2014-11