We have a report on a clinical trial that seems to be still recruiting participants (although it is expecting to complete its primary investigations this month). It is being carried out by Robert Nussenblatt at the National Eye Institute in Bethesda in the US. This trial is researching Interferon Gamma–1b administered topically in a drop form rather than by infusion for people who have macular oedema as a result of uveitis (macular oedema can be a complication of Birdshot). This trial may be of interest to our US members, and more information can be found at
The trial will be looking for the change in excess central macular thickening as measured by OCT in response to interferon gamma-1b.
Below, we give a brief summary of the trial and who they are looking for:
Background: – Uveitis is a serious eye condition in which the immune system attacks the eye and can cause vision loss. A common problem related to uveitis is macular edema. This is a swelling of the central part of the retina. This part of the retina is needed for sharp, clear vision. This swelling can lead to more vision loss. – Interferon gamma-1b is a lab-created protein that acts like the material made by the white blood cells that help fight infection. It changes the way the immune system reacts to the cells in the eye and may help to lessen the swelling in the back of the eye. It has been used as an injection to treat other immune diseases, but it has not been tested as an eye drop for use in uveitis other than a safety trial done at NIH in 2010.
Objectives: – To test the effectiveness of interferon gamma eye drops to treat macular edema caused by uveitis.
Eligibility: – Individuals at least 18 years of age who have autoimmune uveitis in one or both eyes, have had it for at least 3 months, and as a result have macular edema in at least one eye.
Design: – This study requires three visits to the study clinic over about 2 weeks. Each visit will last 1 to 2 hours.