Dry Eye Syndromes Clinical Trial
Official title:
Clinical Trial of Essential Fatty Acids for Dry Eye Disease: Feasibility Study
The purpose of this study is to test a protocol investigating the efficacy of omega-3 fatty acids in treating dry eye disease. The study is termed "feasibility" because its purpose is to demonstrate an ability to execute the proposed protocol with compliance at two sites rather than generate statistically relevant data concerning the safety and efficacy of the supplement in patients with dry eye disease.
Dry eye disease (DED) is a common but often inadequately treated disease of the tears and
surface of the eye. It can cause poor vision and chronic pain and is more frequent with
increasing age. Inflammation may be an important component of this disease. This is
supported by the observation that cyclosporine, a drug that targets the immune system, is
approved for and effectively treats DED. Inflammatory processes likely produce ocular
surface damage and contribute to chronic DED. Because not all people with DED respond to
current anti-inflammatory treatments, other immune-modulating treatments would be of value.
Furthermore, despite a great deal of evidence supporting DED as an inflammatory disease, not
all researchers currently agree with this classification. More data that specifically
measures inflammatory responses in DED needs to be collected in a well-characterized patient
population and correlated with signs and symptoms of DED in order to improve our
understanding and classification of the disease.
Essential Fatty Acids (EFA) have been shown to diminish inflammatory responses in many human
inflammatory diseases, and interest in the use of omega-3 and omega-6 fatty acids for
disease treatment has resulted in several small studies as well as the use (and
over-the-counter availability) of EFA-containing nutritional supplements, including several
specifically for the treatment of DED. Despite this interest in EFA for DED, there are no
strong empirical data from a well-controlled randomized controlled trial RCT supporting the
use of EFA for DED. We postulate that DED is an inflammatory disease and hypothesize that
EFA can mediate immune responses, thus improving DED signs, symptoms and associated measures
of inflammation. The proposed three month feasibility study allows us the chance to
demonstrate our ability to successfully execute our own protocol with compliance from the
study patients before we begin the process of initiating a full-scale multi-center trial.
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Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment
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