Retrospective Study of the Effectiveness and Safety of Niacin and Steroid Eye Drops for Retinal Vein Occlusions
Central Retinal Vein Occlusion
Branch Retinal Vein Occlusion
Drug: nicotinic acid
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||"Retrospective Study of Niacin (as a Vasodilator), Combined With a Topical Steroid (for Macular Edema), For CRVO, HRVO, BRVO."|
- An improvement in vision in the the treatment patients, as measured by an increase of 15 letters on the Early Treatment Diabetic Retinopathy Study (EDTRS) Vision chart. [ Time Frame: one year ]
- A decrease in the thickness of the retina [ Time Frame: one year ]
|Study Start Date:||February 2007|
|Estimated Study Completion Date:||December 2016|
|Estimated Primary Completion Date:||December 2016 (Final data collection date for primary outcome measure)|
Drug: nicotinic acid
niacin 1500 mg po qd
Other Name: niacin
A spontaneous improvement was noted in some patients who were experiencing deteriorating retinal vein occlusions. A chart review and questioning of the patients revealed that the addition of Niacin by the Internist seemed to be the factor that was bringing about the vision improvement.
The Niacin has vasodilating properties, and it is postulated that as the Niacin dilates the retinal vessels, it will encourage earlier collateral vessel formation that will bypass the venous obstruction, and restore venous outflow. The prednisolone steroid eye drops will hopefully reduce the macular edema in the eye.
This is a retrospective study conducted by chart review of up to 45 patients who have undergone treatment with 1500 mg per day of oral Niacin (Nicotinic acid) with or without topical steroid eye drops, Prednisolone acetate (Pred Forte) for the treatment of retinal vein occlusion central (CRVO), hemi-retinal (HRVO), branch (BRVO). The retrospective chart review of patients seen by Dr. Michael Gaynon will go back to 1998 and will continue through the present time. All patients with vision impairment caused by deteriorating retinal vein occlusion, and who were or will be prescribed the Niacin with or without Pred Forte treatment will be included.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00500045
|United States, California|
|Palo Alto Medical Foundation Department of Ophthalmology|
|Palo Alto, California, United States, 94301|
|Principal Investigator:||Michael Gaynon, MD||Palo Alto Medical Foundation|