DREAM: Dry Eye Assessment and Management Study

Sponsor
University of Pennsylvania (Other)
Overall Status
Completed
CT.gov ID
NCT02128763
Collaborator
National Eye Institute (NEI) (NIH)
535
27
2
63
19.8
0.3

Study Details

Study Description

Brief Summary

The objective of the DREAM study is to evaluate the effectiveness and safety of supplementation with omega-3 fatty acids in relieving the symptoms of moderate to severe dry eye disease.

Condition or Disease Intervention/Treatment Phase
  • Drug: Omega-3 supplements
  • Drug: Placebo
Phase 3

Detailed Description

The study is designed to:
  • Test the hypothesis that omega-3 supplementation is an effective treatment for Dry Eye Disease (DED) in Primary Clinical Trial.

  • Better understand DED by describing and evaluating a comprehensive set of features of DED and treatment over 12 months of observation in a well-characterized group of patients.

  • Determine the effects of extended use and discontinuation of omega-3 through the Extension trial.

Study Design

Study Type:
Interventional
Actual Enrollment :
535 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose:
Treatment
Official Title:
Dry Eye Assessment and Management Study
Study Start Date :
Nov 1, 2014
Actual Primary Completion Date :
Sep 5, 2017
Actual Study Completion Date :
Jan 31, 2020

Arms and Interventions

Arm Intervention/Treatment
Experimental: Omega-3 supplements

Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps

Drug: Omega-3 supplements
2000 mg EPA and 1000 mg DHA per day

Placebo Comparator: Placebo

Olive oil-5 gelcaps per day

Drug: Placebo
Olive oil gelcaps manufactured to mimic Omega-3 gelcaps

Outcome Measures

Primary Outcome Measures

  1. Mean of Change From Baseline in Ocular Surface Disease Index (OSDI) Score at 6 and 12 Months [12 months]

    Average of Ocular Surface Disease Index (OSDI) scores from 6 and 12 months minus average of values from screening and eligibility confirmation visits. OSDI scores range from 0 to 100, with a score of 0 indicating no ocular discomfort and higher scores indicating greater symptom severity. The minimal clinically meaningful change in score is 10 points.

Secondary Outcome Measures

  1. Greater Than or Equal to 10 Point Decrease in Ocular Surface Disease Index (OSDI) (at Least 10 Point Improvement in Symptoms) [12 months]

    Number of participants with at least a 10 point decrease from baseline in Ocular Surface Disease Index (OSDI). Change is the average score at 6 and 12 months minus the average score at the screening and eligibility confirmation visits. OSDI scores range from 0 to 100, with a score of 0 indicating no ocular discomfort and higher scores indicating greater symptom severity. A negative change score = improvement.

  2. Change in Brief Ocular Discomfort Index (BODI) Pain Interference Subscale [12 months]

    Brief Ocular Discomfort Index (BODI) Pain Interference subscale scores range from 0 to 100, with higher scores indicating greater discomfort. Change is the average score at 6 and 12 months minus the average score at the screening and eligibility confirmation visits. A negative change score = improvement.

  3. Change From Baseline in SF-36 Physical Health Subscale [12 months]

    Medical Outcomes Study 36--Item Short Form Health Survey (SF-36) Physical Health Subscale. Subscale range is 0-100, with higher scores indicating better self reported physical health-related quality of life. Change is the average score at 6 and 12 months minus the average score at the screening and eligibility confirmation visits. A positive change score = improvement.

  4. Change From Baseline in SF-36 Mental Health Subscale [12 months]

    Medical Outcomes Study 26--Item Short Form Health Survey (SF-36) Mental Health Subscale. Mental Health subscale range is 0-100 with higher scores indicating better self reported mental health. Change is the average score at 6 and 12 months minus the average score at the screening and eligibility confirmation visits. A positive change score = improvement.

  5. Compliance With the Study Treatment Protocol as Measured by Change in Blood Levels of EPA [12 months]

    Change in EPA levels in red blood cells - percentage points. Change is the average level at 6 and 12 months minus the level at the eligibility confirmation visit. (Blood was not drawn at the screening visit.) If subjects are compliant, higher EPA levels in red blood cells in the Omega 3 group are expected and no change is expected in the placebo group. Data are missing for 20 subjects in the Omega 3 group and 15 subjects in the placebo group because blood was not drawn at the visit.

  6. Compliance With the Study Treatment Protocol as Measured by Change in Blood Levels of DHA [12 months]

    Change in DHA levels in red blood cells - percentage points. Change is the average score at 6 and 12 months minus the average score at eligibility confirmation visit (blood was not drawn at the screening visit. If compliant, higher DHA levels in red blood cells in the Omega 3 group is expected and no change is expected in the placebo group. Data are missing for 20 subjects in the Omega 3 group and 15 subjects in the placebo group.

  7. Compliance With the Study Treatment Protocol as Measured by Change in Blood Levels of Oleic Acid [12 months]

    Change in Oleic Acid (from olive oil) levels in red blood cells - percentage points. Change is the average score at 6 and 12 months minus the average score at eligibility confirmation visit. (Blood was not drawn at the screening visit.) Data are missing for 20 subjects in the Omega 3 group and 15 subjects in the placebo group because blood was not drawn.

  8. Change in Conjunctival Staining Score [12 months]

    Average change from 6 and 12 months minus average of values from screening and eligibility confirmation visits among eyes that qualified for the study. Scores range between 0-6, with higher scores indicate more severity. A negative change indicates improvement.

  9. Change in Schirmer's Test mm [12 months]

    The Schirmer's test measures the production of tears by an eye as measured by mm of wetting of a strip of paper attached to the lower lid for 5 minutes. Scores range from 0 to 30 or more mm. Lower scores indicate more severe dry eye. Change is the average change from 6 and 12 months minus average of values from screening and eligibility confirmation visits among eyes that qualified for the study.

  10. Change in Tear Film Break up Time, in Seconds [12 months]

    Average of values from 6 and 12 months minus average of values from screening and eligibility confirmation visits. Possible range of scores is 0->20. Low values indicate greater severity. A positive change score = improvement.

  11. Change in Corneal Fluorescein Staining Score [12 months]

    Average change from 6 and 12 months minus average of values from screening and eligibility confirmation visits among eyes that quality that qualified for the study. Possible range of scores is 0-15; higher scores indicate more severity. A negative change indicates improvement.

  12. Change in Visual Acuity [12 months]

    Visual acuity scores of 0-100 correspond to Snellen visual acuity levels of worse than 20/800 to 20/10, respectively. Higher change score = improved visual acuity.

  13. Change in Use of Artificial Tears and Other Treatments for Dry Eye Disease [12 months]

    Subjects with change in number of treatments used for dry eye disease, n.,(%)

Other Outcome Measures

  1. Change in Intraocular Pressure (IOP)- mm Hg [12 months]

    Eye pressure is measured in millimeters of mercury (mm Hg). Normal eye pressure ranges from 12-22 mm Hg, and eye pressure of greater than 22 mm Hg is considered higher than normal. Included as a safety measure.

  2. Change in Tear Break up Time by Keratography [12 months]

    Tear breakup time (TBUT) is used to assess for evaporative dry eye disease. In this measure, TBUT is measured using the keratograph machine. TBUT is recorded as the number of seconds that elapse between the last blink and the appearance of the first dry spot in the tear film. Change is the average of values from 6 and 12 months minus average of values from screening and eligibility confirmation visits.

  3. Change in Tear Meniscus Height( TMH) by Keratography [12 months]

    The purpose of the tear film is to reduce evaporation of natural tears. Assessment of the tear film meniscus is a quantitative measurement of tear film quantity. In this measure, TMH is measured using the keratograph machine. Change is the average of values from 6 and 12 months minus average of values from screening and eligibility confirmation visits.

  4. Change in Redness by Keratography [12 months]

    Change in ocular redness as measured using the keratograph machine. Change is the average of values from 6 and 12 months minus average of values from screening and eligibility confirmation visits. Title of the Scale used to measure outcome: Oculus Keratograph 5M R-scan, Scale Ranges: 0.0-4.0. A lower number indicates a better outcome (less redness).

  5. Change in Tear Osmolarity [12 months]

    Tear osmolarity measures the salt content of the tears. Higher the osmolarity indicate more severe dry eye. Change is the average of values from 6 and 12 months minus average of values from screening and eligibility confirmation visits. A lower change score indicates improvement.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Greater than or equal to 2 of the following 4 signs in the same eye at screening and baseline visits (Same signs must be present at Screening and Baseline visits): Conjunctival staining present greater than or equal to 1 (out of possible score of 6 per eye), Corneal fluorescein staining present greater than or equal to 4 (out of a possible score of 15 per eye), Tear film break up time (TBUT) less than or equal to 7 seconds, Schirmer's test greater than or equal to 1 to less than or equal to 7 mm in 5 minutes.

  • Ocular Surface Disease Index (OSDI) score: 25-80 at screening, 21-80 at baseline.

  • Symptoms of DED for greater than or equal to 6 months.

  • Use of or desire to use artificial tears at least 2 times per day in preceding 2 weeks.

  • Ability to swallow large, soft gelcaps

Exclusion Criteria:
  • Allergic to ingredients in supplements or placebo

  • Contact lens wear

  • Pregnant, nursing, or lactating

  • Current ocular infection, inflammation, or acute allergic conjunctivitis

  • History of: ocular herpetic keratitis, ocular surgery in past 6 months, LASIK surgery, use of glaucoma medicine or surgery for glaucoma, liver disease, atrial fibrillation, hemophilia or bleeding tendencies

  • Currently on anticoagulation therapy

  • Eyelid abnormalities or extensive ocular scarring

  • Use of EPA/DHA supplements in excess of 1200 mg per dayi

  • Current use, insufficient washout period, or intent to change specific treatments for dry eye disease

Contacts and Locations

Locations

Site City State Country Postal Code
1 Stephen Cohen, OD PC Scottsdale Arizona United States 85254
2 Mayo Clinic Arizona Scottsdale Arizona United States 85259
3 Milton M. Hom, OD, FAAO Azusa California United States 91702
4 University of California, Berkeley Berkeley California United States 94720
5 Pendleton Eye Center Oceanside California United States 92056
6 Wolstan and Goldberg Eye Associates Torrance California United States 90505
7 Shettle Eye Research Largo Florida United States
8 Eye Care Centers Management, Inc. Morrow Georgia United States 30260
9 University of Illinois Hospital & Health Sciences Chicago Illinois United States 60612
10 Price Vision Group Indianapolis Indiana United States 46260
11 KU Eye Center Prairie Village Kansas United States 66208
12 Tufts Medical Center Boston Massachusetts United States 02111
13 Massachusetts Eye and Ear Infirmary Boston Massachusetts United States 02114
14 Clinical Eye Research of Boston Winchester Massachusetts United States 01890
15 University of Michigan Kellogg Eye Center Ann Arbor Michigan United States 48105
16 Minnesota Eye Consultants, P.A. Bloomington Minnesota United States 55431
17 Mulqueeny Eye Centers Creve Coeur Missouri United States 63141
18 Tauber Eye Center Kansas City Missouri United States 64111
19 Silverstein Eye Centers Kansas City Missouri United States 64133
20 Icahn School of Medicine at Mount Sinai New York New York United States 10029
21 Universtity of Rochester-Flaum Eye Institute Rochester New York United States 14642
22 Oculus Research at Garner at Eyecarecenter Raleigh North Carolina United States 27603
23 Case Western Reserve University Cleveland Ohio United States 44106
24 Northeast Ohio Eye Surgeons Kent Ohio United States 44240
25 Scheie Eye Institute, University of Pennsylvania Philadelphia Pennsylvania United States 19104
26 Southern College of Optometry Memphis Tennessee United States 38104
27 The Eye Centers of Racine and Kenosha Racine Wisconsin United States 53405

Sponsors and Collaborators

  • University of Pennsylvania
  • National Eye Institute (NEI)

Investigators

  • Study Chair: Penny A Asbell, MD, University of Tennessee Health Science Center
  • Principal Investigator: Maureen G Maguire, PhD, University of Pennsylvania

Study Documents (Full-Text)

More Information

Publications

None provided.
Responsible Party:
University of Pennsylvania
ClinicalTrials.gov Identifier:
NCT02128763
Other Study ID Numbers:
  • UPenn IRB Protocol 816490
  • U10EY022879
  • U10EY022881
First Posted:
May 1, 2014
Last Update Posted:
Jul 19, 2022
Last Verified:
Jun 1, 2022
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details
Pre-assignment Detail
Arm/Group Title Omega-3 Supplements Placebo
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day containing a total of 5 grams of refined olive oil Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Period Title: Overall Study
STARTED 349 186
COMPLETED 329 170
NOT COMPLETED 20 16

Baseline Characteristics

Arm/Group Title Omega-3 Supplements Placebo Total
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps Total of all reporting groups
Overall Participants 349 186 535
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]
58.3
(13.5)
57.5
(12.6)
58.0
(13.2)
Sex: Female, Male (Count of Participants)
Female
284
81.4%
150
80.6%
434
81.1%
Male
65
18.6%
36
19.4%
101
18.9%
Ethnicity (NIH/OMB) (Count of Participants)
Hispanic or Latino
44
12.6%
24
12.9%
68
12.7%
Not Hispanic or Latino
302
86.5%
161
86.6%
463
86.5%
Unknown or Not Reported
3
0.9%
1
0.5%
4
0.7%
Race (NIH/OMB) (Count of Participants)
American Indian or Alaska Native
2
0.6%
1
0.5%
3
0.6%
Asian
12
3.4%
7
3.8%
19
3.6%
Native Hawaiian or Other Pacific Islander
0
0%
0
0%
0
0%
Black or African American
39
11.2%
25
13.4%
64
12%
White
265
75.9%
133
71.5%
398
74.4%
More than one race
4
1.1%
5
2.7%
9
1.7%
Unknown or Not Reported
27
7.7%
15
8.1%
42
7.9%
Region of Enrollment (participants) [Number]
United States
349
100%
186
100%
535
100%
OSDI Score (units on a scale) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [units on a scale]
44.6
(14.1)
44.1
(14.6)
44.1
(14.2)
Brief Ocular Discomfort Inventory (BODI) Score (units on a scale) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [units on a scale]
33.2
(15.5)
33.4
(16.3)
33.2
(15.8)
EPA level in red cells (percentage of total fatty acids) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [percentage of total fatty acids]
0.63
(0.43)
0.56
(0.35)
0.60
(0.40)
DHA level in red blood cells at baseline (percentage of total fatty acids) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [percentage of total fatty acids]
3.91
(1.17)
3.85
(1.11)
3.9
(1.1)
Oleic Acid (OA) level in red cells (percentage of total fatty acids) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [percentage of total fatty acids]
11.11
(1.24)
11.10
(1.38)
11.1
(1.3)
Tear Break Up Time (TBUT) (seconds) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [seconds]
3.1
(1.4)
3.1
(1.6)
3.1
(1.5)
Schimer's Test (mm) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [mm]
9.3
(6.2)
10.2
(7.0)
9.8
(7.2)
Conjunctival Staining (units on a scale) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [units on a scale]
3.1
(1.4)
2.9
(1.4)
3.0
(1.4)
Corneal Staining (point score) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [point score]
4.0
(2.9)
3.7
(2.4)
3.9
(2.7)

Outcome Measures

1. Primary Outcome
Title Mean of Change From Baseline in Ocular Surface Disease Index (OSDI) Score at 6 and 12 Months
Description Average of Ocular Surface Disease Index (OSDI) scores from 6 and 12 months minus average of values from screening and eligibility confirmation visits. OSDI scores range from 0 to 100, with a score of 0 indicating no ocular discomfort and higher scores indicating greater symptom severity. The minimal clinically meaningful change in score is 10 points.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Omega-3 Supplements Placebo (5 Gms of Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 329 170
Mean (Standard Deviation) [units on a scale]
-13.9
(15.6)
-12.5
(18.2)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.40
Comments P value refers to difference between group on change in overall OSDI score (Row 1).
Method Regression, Linear
Comments
2. Secondary Outcome
Title Greater Than or Equal to 10 Point Decrease in Ocular Surface Disease Index (OSDI) (at Least 10 Point Improvement in Symptoms)
Description Number of participants with at least a 10 point decrease from baseline in Ocular Surface Disease Index (OSDI). Change is the average score at 6 and 12 months minus the average score at the screening and eligibility confirmation visits. OSDI scores range from 0 to 100, with a score of 0 indicating no ocular discomfort and higher scores indicating greater symptom severity. A negative change score = improvement.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Omega-3 Supplements Placebo (5 Gms of Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day (5 gms of refined olive oil/day) Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 329 170
Count of Participants [Participants]
202
57.9%
91
48.9%
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.09
Comments
Method Regression, Linear
Comments
3. Secondary Outcome
Title Change in Brief Ocular Discomfort Index (BODI) Pain Interference Subscale
Description Brief Ocular Discomfort Index (BODI) Pain Interference subscale scores range from 0 to 100, with higher scores indicating greater discomfort. Change is the average score at 6 and 12 months minus the average score at the screening and eligibility confirmation visits. A negative change score = improvement.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Omega-3 Supplements Placebo (5 Gms Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 329 170
Mean (Standard Deviation) [score on a scale]
-9.4
(15.0)
-8.9
(16.2)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.77
Comments
Method Regression, Linear
Comments Pos hoc application of the Benjamini-Hochberg adjustment
4. Secondary Outcome
Title Change From Baseline in SF-36 Physical Health Subscale
Description Medical Outcomes Study 36--Item Short Form Health Survey (SF-36) Physical Health Subscale. Subscale range is 0-100, with higher scores indicating better self reported physical health-related quality of life. Change is the average score at 6 and 12 months minus the average score at the screening and eligibility confirmation visits. A positive change score = improvement.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Omega-3 Supplements Placebo (5 Gms of Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day (5 gms of refined olive oil/day) Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 329 170
Mean (Standard Deviation) [score on a scale]
0.1
(6.9)
0.1
(6.3)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.95
Comments
Method Regression, Linear
Comments
5. Secondary Outcome
Title Change From Baseline in SF-36 Mental Health Subscale
Description Medical Outcomes Study 26--Item Short Form Health Survey (SF-36) Mental Health Subscale. Mental Health subscale range is 0-100 with higher scores indicating better self reported mental health. Change is the average score at 6 and 12 months minus the average score at the screening and eligibility confirmation visits. A positive change score = improvement.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Omega-3 Supplements Placebo (5 Gms of Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 329 170
Mean (Standard Deviation) [score on a scale]
-0.9
(6.3)
0.4
(7.0)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.051
Comments
Method Regression, Linear
Comments
6. Secondary Outcome
Title Compliance With the Study Treatment Protocol as Measured by Change in Blood Levels of EPA
Description Change in EPA levels in red blood cells - percentage points. Change is the average level at 6 and 12 months minus the level at the eligibility confirmation visit. (Blood was not drawn at the screening visit.) If subjects are compliant, higher EPA levels in red blood cells in the Omega 3 group are expected and no change is expected in the placebo group. Data are missing for 20 subjects in the Omega 3 group and 15 subjects in the placebo group because blood was not drawn at the visit.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
Data are missing for 20 subjects in the Omega 3 group and 15 subjects in the placebo group.
Arm/Group Title Omega-3 Supplements Placebo (5 Gms of Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 309 155
Mean (Standard Deviation) [percentage of fatty acids in blood cells]
2.2
(1.2)
0.0
(0.2)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value <0.001
Comments
Method Regression, Linear
Comments
7. Secondary Outcome
Title Compliance With the Study Treatment Protocol as Measured by Change in Blood Levels of DHA
Description Change in DHA levels in red blood cells - percentage points. Change is the average score at 6 and 12 months minus the average score at eligibility confirmation visit (blood was not drawn at the screening visit. If compliant, higher DHA levels in red blood cells in the Omega 3 group is expected and no change is expected in the placebo group. Data are missing for 20 subjects in the Omega 3 group and 15 subjects in the placebo group.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
Data are missing for 20 subjects in the Omega 3 group and 15 subjects in the placebo group.
Arm/Group Title Omega-3 Supplements Placebo (5 Gms of Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 309 155
Mean (Standard Deviation) [percentage of fatty acids in blood cells]
1.6
(1.2)
0.0
(0.2)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value <0.001
Comments
Method Regression, Linear
Comments
8. Secondary Outcome
Title Compliance With the Study Treatment Protocol as Measured by Change in Blood Levels of Oleic Acid
Description Change in Oleic Acid (from olive oil) levels in red blood cells - percentage points. Change is the average score at 6 and 12 months minus the average score at eligibility confirmation visit. (Blood was not drawn at the screening visit.) Data are missing for 20 subjects in the Omega 3 group and 15 subjects in the placebo group because blood was not drawn.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
Data are missing for 20 subjects in the Omega 3 group and 15 subjects in the placebo group
Arm/Group Title Omega-3 Supplements Placebo (5 Gms of Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 309 155
Mean (Standard Deviation) [percentage of oleic acid in blood cells]
-0.1
(1.0)
-0.1
(1.0)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.40
Comments
Method Regression, Linear
Comments
9. Secondary Outcome
Title Change in Conjunctival Staining Score
Description Average change from 6 and 12 months minus average of values from screening and eligibility confirmation visits among eyes that qualified for the study. Scores range between 0-6, with higher scores indicate more severity. A negative change indicates improvement.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
Among eyes that qualified for the study.
Arm/Group Title Omega-3 Supplements Placebo (5 Gms of Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 329 170
Measure eyes 629 327
Mean (Standard Deviation) [units on a scale]
-0.4
(1.1)
-0.4
(1.0)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.77
Comments
Method Regression, Linear
Comments
10. Secondary Outcome
Title Change in Schirmer's Test mm
Description The Schirmer's test measures the production of tears by an eye as measured by mm of wetting of a strip of paper attached to the lower lid for 5 minutes. Scores range from 0 to 30 or more mm. Lower scores indicate more severe dry eye. Change is the average change from 6 and 12 months minus average of values from screening and eligibility confirmation visits among eyes that qualified for the study.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
among eligible eyes
Arm/Group Title Omega-3 Supplements Placebo (5 Gms of Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 329 170
Measure eyes 629 327
Mean (Standard Deviation) [mm]
0.4
(5.3)
0.3
(5.0)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.95
Comments
Method Regression, Linear
Comments
11. Secondary Outcome
Title Change in Tear Film Break up Time, in Seconds
Description Average of values from 6 and 12 months minus average of values from screening and eligibility confirmation visits. Possible range of scores is 0->20. Low values indicate greater severity. A positive change score = improvement.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
Measure is eyes, not people.
Arm/Group Title Omega-3 Supplements Placebo (5 Gms of Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 329 170
Measure eyes 629 327
Mean (Standard Deviation) [seconds]
0.7
(2.1)
0.6
(1.6)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.25
Comments
Method Regression, Linear
Comments
12. Secondary Outcome
Title Change in Corneal Fluorescein Staining Score
Description Average change from 6 and 12 months minus average of values from screening and eligibility confirmation visits among eyes that quality that qualified for the study. Possible range of scores is 0-15; higher scores indicate more severity. A negative change indicates improvement.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
Average change from 6 and 12 months minus average of values from screening and eligibility confirmation visits among eyes that quality that qualified for the study
Arm/Group Title Omega-3 Supplements Placebo (5 Gms of Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 329 170
Measure eyes 629 327
Mean (Standard Deviation) [units on a scale]
-0.6
(1.9)
-0.7
(1.7)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.61
Comments
Method Regression, Linear
Comments
13. Secondary Outcome
Title Change in Visual Acuity
Description Visual acuity scores of 0-100 correspond to Snellen visual acuity levels of worse than 20/800 to 20/10, respectively. Higher change score = improved visual acuity.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
Each eye measured separately. Total are numbers of eyes assessed, not subjects.
Arm/Group Title Omega-3 Supplements Placebo (5 Gms of Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 329 170
Measure eyes 656 340
Mean (Standard Deviation) [score on a scale]
-0.5
(5.0)
-0.2
(4.8)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.42
Comments
Method Regression, Linear
Comments
14. Secondary Outcome
Title Change in Use of Artificial Tears and Other Treatments for Dry Eye Disease
Description Subjects with change in number of treatments used for dry eye disease, n.,(%)
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
Data are missing for 5 subjects in the omega -3 group and 6 subjects in the placebo group
Arm/Group Title Omega-3 Supplements Placebo (5 Gms of Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 324 164
Fewer treatments used, with no additions
171
49%
93
50%
No Change
80
22.9%
36
19.4%
≤ treatments used, with ≥1 treatment switched
40
11.5%
23
12.4%
More treatments used
33
9.5%
12
6.5%
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.60
Comments
Method Chi-squared, Corrected
Comments
15. Other Pre-specified Outcome
Title Change in Intraocular Pressure (IOP)- mm Hg
Description Eye pressure is measured in millimeters of mercury (mm Hg). Normal eye pressure ranges from 12-22 mm Hg, and eye pressure of greater than 22 mm Hg is considered higher than normal. Included as a safety measure.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
Each eye measured separately
Arm/Group Title Omega-3 Supplements Placebo
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 329 170
Measure eyes 658 340
Mean (Standard Deviation) [mmHg]
0.0
(2.3)
0.3
(2.4)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.17
Comments
Method Regression, Linear
Comments
16. Other Pre-specified Outcome
Title Change in Tear Break up Time by Keratography
Description Tear breakup time (TBUT) is used to assess for evaporative dry eye disease. In this measure, TBUT is measured using the keratograph machine. TBUT is recorded as the number of seconds that elapse between the last blink and the appearance of the first dry spot in the tear film. Change is the average of values from 6 and 12 months minus average of values from screening and eligibility confirmation visits.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
Each eye is measured separately. Total are number of eyes assessed, not subjects. Tear Break up Time by Keratography was only measured at the 13 clinical centers that owned an Oculus Keratograph machine; therefore the number of participants analyzed for this measure is less than the overall number of study participants.
Arm/Group Title Omega-3 Supplements Placebo (5 Gms Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 154 80
Measure eyes 290 149
Mean (Standard Deviation) [seconds]
-0.5
(6.7)
-0.5
(6.1)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.02
Comments
Method Regression, Linear
Comments
17. Other Pre-specified Outcome
Title Change in Tear Meniscus Height( TMH) by Keratography
Description The purpose of the tear film is to reduce evaporation of natural tears. Assessment of the tear film meniscus is a quantitative measurement of tear film quantity. In this measure, TMH is measured using the keratograph machine. Change is the average of values from 6 and 12 months minus average of values from screening and eligibility confirmation visits.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
Each eye measured separately. Total are number of eyes assessed, not subjects. Tear Meniscus Height by Keratography was only measured at the 13 clinical centers that owned an Oculus Keratograph machine; therefore, the number of participants analyzed for this measure is less than the overall number of study participants.
Arm/Group Title Omega-3 Supplements Placebo (5 Gms Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 167 87
Measure eyes 317 162
Mean (Standard Deviation) [mm]
0.00
(0.16)
-0.01
(0.14)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.71
Comments
Method Regression, Linear
Comments
18. Other Pre-specified Outcome
Title Change in Redness by Keratography
Description Change in ocular redness as measured using the keratograph machine. Change is the average of values from 6 and 12 months minus average of values from screening and eligibility confirmation visits. Title of the Scale used to measure outcome: Oculus Keratograph 5M R-scan, Scale Ranges: 0.0-4.0. A lower number indicates a better outcome (less redness).
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
Each eye measured separately. Total are number of eyes assessed, not subjects. Change in redness measured by keratography was only performed at the 13 clinical centers that owned an Oculus Keratograph machine; therefore, the number of participants analyzed for this measure is less than the overall number of study participants.
Arm/Group Title Omega-3 Supplements Placebo (5 Gms Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 150 80
Measure eyes 273 145
Mean (Standard Deviation) [score on a scale]
-0.00
(0.34)
-0.01
(0.40)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.66
Comments
Method Regression, Linear
Comments
19. Other Pre-specified Outcome
Title Change in Tear Osmolarity
Description Tear osmolarity measures the salt content of the tears. Higher the osmolarity indicate more severe dry eye. Change is the average of values from 6 and 12 months minus average of values from screening and eligibility confirmation visits. A lower change score indicates improvement.
Time Frame 12 months

Outcome Measure Data

Analysis Population Description
Each eye is measured separately. Total are number of eyes assessed, not subjects.Tear Osmolarity was only performed at the 18 clinical centers that owned a Tearlab osmolarity machine; therefore the number of participants analyzed for this measure is less than the overall number of study participants.
Arm/Group Title Omega-3 Supplements Placebo (5 Gms Refined Olive Oil/Day)
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
Measure Participants 233 117
Measure eyes 424 212
Mean (Standard Deviation) [mOsms/L]
-0.7
(21.5)
3.6
(18.3)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Omega-3 Supplements, Placebo (5 Gms of Refined Olive Oil/Day)
Comments
Type of Statistical Test Superiority
Comments
Statistical Test of Hypothesis p-Value 0.02
Comments
Method Regression, Linear
Comments

Adverse Events

Time Frame AE data were collected from the safety visit to 12 months The AE reporting period was the from the screening visit to the end of the study follow-up (12 months). At the last visit, subjects were instructed to report any subsequent event(s) occurring within 30 days that the subject or a physician, believed might reasonably be related to study treatment. Subjects who withdrew early were contacted by the Clinic Coordinator 30 days after their last visit to ascertain whether any AEs occurred.
Adverse Event Reporting Description
Arm/Group Title Omega-3 Supplements Placebo
Arm/Group Description Total 2000 mg EPA and 1000 mg DHA per day taken in 5 gelcaps Omega-3 supplements: 2000 mg EPA and 1000 mg DHA per day Olive oil-5 gelcaps per day Placebo: Olive oil gelcaps manufactured to mimic Omega-3 gelcaps
All Cause Mortality
Omega-3 Supplements Placebo
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 1/349 (0.3%) 0/186 (0%)
Serious Adverse Events
Omega-3 Supplements Placebo
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 21/349 (6%) 15/186 (8.1%)
Cardiac disorders
ATRIAL FIBRILLATION 1/349 (0.3%) 1 1/186 (0.5%) 1
ATRIAL FLUTTER 1/349 (0.3%) 1 0/186 (0%) 0
Gastrointestinal disorders
COLITIS 1/349 (0.3%) 1 0/186 (0%) 0
COLONIC OBSTRUCTION 1/349 (0.3%) 1 0/186 (0%) 0
DYSPEPSIA 1/349 (0.3%) 1 0/186 (0%) 0
Hepatobiliary disorders
GALLBLADER PAIN 0/349 (0%) 0 1/186 (0.5%) 1
Immune system disorders
HYPERSENSITIVITY 1/349 (0.3%) 1 0/186 (0%) 0
Infections and infestations
ABDOMINAL INFECTION 1/349 (0.3%) 1 0/186 (0%) 0
OSTEOMYELITIS 0/349 (0%) 0 1/186 (0.5%) 1
SKIN INFECTION 0/349 (0%) 0 1/186 (0.5%) 1
Injury, poisoning and procedural complications
FALL 1/349 (0.3%) 1 0/186 (0%) 0
HIP FRACTURE 1/349 (0.3%) 1 0/186 (0%) 0
SUBDURAL HAEMATOMA 0/349 (0%) 0 1/186 (0.5%) 1
Musculoskeletal and connective tissue disorders
CHONDROCALCINOSIS PYROPHOSPHATE 0/349 (0%) 0 1/186 (0.5%) 1
NECK PAIN 1/349 (0.3%) 1 0/186 (0%) 0
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
BREAST CANCER 0/349 (0%) 0 1/186 (0.5%) 1
CHRONIC MYELOID LEUKAEMIA 1/349 (0.3%) 1 0/186 (0%) 0
LYMPHOMA 1/349 (0.3%) 1 1/186 (0.5%) 1
MALIGNANT MELANOMA 1/349 (0.3%) 1 0/186 (0%) 0
SQUAMOUS CELL CARCINOMA 1/349 (0.3%) 1 0/186 (0%) 0
Nervous system disorders
FACIAL PALSY 0/349 (0%) 0 1/186 (0.5%) 1
Psychiatric disorders
PSYCHOTIC DISORDER 1/349 (0.3%) 2 0/186 (0%) 0
Renal and urinary disorders
HYDRONEPHROSIS 1/349 (0.3%) 1 0/186 (0%) 0
Respiratory, thoracic and mediastinal disorders
PNEUMONIA ASPIRATION 1/349 (0.3%) 1 0/186 (0%) 0
PNEUMOTHORAX 1/349 (0.3%) 1 0/186 (0%) 0
PULMONARY EMBOLISM 1/349 (0.3%) 1 0/186 (0%) 0
Surgical and medical procedures
ARTHRODESIS 0/349 (0%) 0 1/186 (0.5%) 1
CHOLECYSTECTOMY 0/349 (0%) 0 2/186 (1.1%) 2
COLECTOMY 1/349 (0.3%) 1 0/186 (0%) 0
GASTROINTESTINAL ENDOSCOPIC THERAPY 1/349 (0.3%) 1 0/186 (0%) 0
HYSTERECTOMY 1/349 (0.3%) 1 0/186 (0%) 0
KNEE ARTHROPLASTY 1/349 (0.3%) 1 1/186 (0.5%) 1
OVARIAN CYSTECTOMY 1/349 (0.3%) 1 0/186 (0%) 0
PARATHYROIDECTOMY 0/349 (0%) 0 1/186 (0.5%) 1
Vascular disorders
DEEP VEIN THROMBOSIS 0/349 (0%) 0 1/186 (0.5%) 1
HYPERTENSION 1/349 (0.3%) 1 0/186 (0%) 0
Other (Not Including Serious) Adverse Events
Omega-3 Supplements Placebo
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/349 (0%) 0/186 (0%)

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

Results Point of Contact

Name/Title Maureen G. Maguire, PhD
Organization University of Pennsylvania
Phone 215-615-1501
Email maguirem@pennmedicine.upenn.edu
Responsible Party:
University of Pennsylvania
ClinicalTrials.gov Identifier:
NCT02128763
Other Study ID Numbers:
  • UPenn IRB Protocol 816490
  • U10EY022879
  • U10EY022881
First Posted:
May 1, 2014
Last Update Posted:
Jul 19, 2022
Last Verified:
Jun 1, 2022