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Omega-3 Fatty Acid Supplements and Dry Eye
Omega-3 Fatty Acid Supplementation and Dry Eye
1 other identifier
interventional
35
1 country
1
Brief Summary
Omega-3 fatty acids have been associated with a decline in inflammation. As dry eye disease is associated with inflammation of the ocular surface (DEWS report, Ocular Surface, 2007), the investigators hypothesize that the omega-3 fatty acid supplements used in this study will help to improve dry eye signs, such as eye surface irritation (staining) and tear film osmolarity, which is an overall measure of tear film stability and dry eye status. Further, the investigators hypothesize that dry eye symptoms, the end result of dry eye disease, such as discomfort and burning, will also improve with supplementation.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started May 2010
1 active site
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
Study Start
First participant enrolled
May 1, 2010
CompletedFirst Submitted
Initial submission to the registry
September 30, 2010
CompletedFirst Posted
Study publicly available on registry
October 4, 2010
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2011
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2011
CompletedMarch 20, 2012
March 1, 2012
1.2 years
September 30, 2010
March 19, 2012
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change in Ocular Surface Disease Index (OSDI)
Based on previous unpublished work by our group (and others), it is suggestive that a 10 unit change in OSDI score may be clinically meaningful. There currently is no accepted survey instrument to monitor change in DED clinical trials, although the OSDI has wide acceptance clinically. This study will help define what unit of change may be clinically and statistically acceptable for future trials.
Baseline, 4 weeks into treatment, 8 weeks into treatment
Secondary Outcomes (3)
Changes in Osmolarity (TearLab) value
Baseline, 4 weeks, 12 weeks
Changes in Staining scores
Baseline, 4 weeks, 8 weeks
Changes in Tear proteomics
Baseline, 4 weeks, 8 weeks
Study Arms (2)
Treatment Group
EXPERIMENTALThis group will receive Omega-3 EFA supplements for 8 weeks. They will take 4 capsules/day.
Placebo Group
PLACEBO COMPARATORThis group will receive placebo supplements for 8 weeks. They will take 4 capsules a day.
Interventions
Each patient will be instructed to take 4 soft gel capsules per day (2 with the morning meal and 2 with the evening meal). They will continue this regimen for 8 weeks. The total daily amount included in 4 soft gels includes: * EPA (Eicosapentaenoic Acid) 1300mg * DHA (Docosahexaenoic Acid) 900 mg * Other Omega-3's 360mg * Total Omega 3's 2560 mg
Each patient will be instructed to take 4 soft gel capsules per day (2 with the morning meal and 2 with the evening meal. The main ingredient in the placebos is soybean oil (95.6%).
Eligibility Criteria
You may qualify if:
- Each qualified participant will have an eye doctor's diagnosis of dry eye disease.
- Answers to both questions: "How often do your eyes feel dry, how often do your eyes feel irritated" will either be "Often or Constant." (Schaumberg)
- ≥ 18 years of age
- The current use of artificial tears at least one time per week.
- Be willing/able to return for all study visits and to follow instructions from the study investigator and his/her staff.
- Stable dosage for one month time of all ocular medications and systemic medications (includes Restasis).
- Be able to swallow large, soft gels.
You may not qualify if:
- Patients who are allergic to ingredients of the treatment or placebo soft gels (fish, soybean oil, citrus).
- Current diagnosis of ocular infection (e.g. bacterial, viral or fungal).
- History of ocular herpetic keratitis.
- Past or current history of liver disease.
- Current use of blood thinners.
- Eye surgery (including cataract surgery) within 6 months prior to randomization.
- Previous LASIK surgery.
- Pregnant or nursing/lactating.
- Participation in a study of an investigational drug or device within the past 30 days.
- Cognitive or psychiatric deficit that precludes informed consent or ability to perform requirements of the investigation.
- Changes in ocular or systemic medications in the past 30 days.
- Contact lens wearers.
- Glaucoma diagnosis and/or use of glaucoma medications.
- Current use of punctual plugs.
- Current use of EPA/DHA supplements in excess of 1 gram/day.
- +4 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Ohio State Universitylead
- Nordic Naturalscollaborator
Study Sites (1)
The Ohio State University College of Optometry
Columbus, Ohio, 43210, United States
Related Publications (5)
Barabino S, Rolando M, Camicione P, Ravera G, Zanardi S, Giuffrida S, Calabria G. Systemic linoleic and gamma-linolenic acid therapy in dry eye syndrome with an inflammatory component. Cornea. 2003 Mar;22(2):97-101. doi: 10.1097/00003226-200303000-00002.
PMID: 12605039BACKGROUNDMacri A, Giuffrida S, Amico V, Iester M, Traverso CE. Effect of linoleic acid and gamma-linolenic acid on tear production, tear clearance and on the ocular surface after photorefractive keratectomy. Graefes Arch Clin Exp Ophthalmol. 2003 Jul;241(7):561-566. doi: 10.1007/s00417-003-0685-x. Epub 2003 May 27.
PMID: 12768289BACKGROUNDRoncone M, Bartlett H, Eperjesi F. Essential fatty acids for dry eye: A review. Cont Lens Anterior Eye. 2010 Apr;33(2):49-54; quiz 100. doi: 10.1016/j.clae.2009.11.002. Epub 2009 Dec 23.
PMID: 20031476BACKGROUNDMassi D, Franchi A, Alos L, Cook M, Di Palma S, Enguita AB, Ferrara G, Kazakov DV, Mentzel T, Michal M, Panelos J, Rodriguez-Peralto JL, Santucci M, Tragni G, Zioga A, Dei Tos AP. Primary cutaneous leiomyosarcoma: clinicopathological analysis of 36 cases. Histopathology. 2010 Jan;56(2):251-62. doi: 10.1111/j.1365-2559.2009.03471.x.
PMID: 20102404BACKGROUNDMiljanovic B, Trivedi KA, Dana MR, Gilbard JP, Buring JE, Schaumberg DA. Relation between dietary n-3 and n-6 fatty acids and clinically diagnosed dry eye syndrome in women. Am J Clin Nutr. 2005 Oct;82(4):887-93. doi: 10.1093/ajcn/82.4.887.
PMID: 16210721BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Kelly K Nichols, OD, MPH, PhD
The Ohio State University College of Optometry
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
Study Record Dates
First Submitted
September 30, 2010
First Posted
October 4, 2010
Study Start
May 1, 2010
Primary Completion
July 1, 2011
Study Completion
July 1, 2011
Last Updated
March 20, 2012
Record last verified: 2012-03