NCT01364311

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

30
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Timeline
Completed

Started Jul 2011

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
withdrawn

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 25, 2011

Completed
8 days until next milestone

First Posted

Study publicly available on registry

June 2, 2011

Completed
29 days until next milestone

Study Start

First participant enrolled

July 1, 2011

Completed
3.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2014

Completed
Last Updated

April 15, 2015

Status Verified

November 1, 2014

Enrollment Period

3.3 years

First QC Date

May 25, 2011

Last Update Submit

April 14, 2015

Conditions

Keywords

Dry Eye SyndromesDietary SupplementsVitamac® Tag and Nacht capsulesLuteinVitamin CZincginkgo bilobaFlavinoidsFishoilZeaxanthinVitamin ECopperSelenAlpha Lipon acidBreak up time (BUT)Improvement of subjective symptoms of dry eye syndromeVisual AcuityTear film osmolarityOSI (Objective Scattering Index)Schirmer I testStaining of the cornea with fluoresceinImpression cytologyTear cytokines/chemokinesData from patient diary how often Hylo-Comod® eye drops were used

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

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

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

Location

MeSH Terms

Conditions

Dry Eye Syndromes

Condition Hierarchy (Ancestors)

Lacrimal Apparatus DiseasesEye Diseases

Study Officials

  • Doreen Schmidl, MD

    Department of Clinical Pharmacology,Medical University of Vienna

    PRINCIPAL INVESTIGATOR
0

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

Locations