As our population gets older, age related macular degeneration ? (AMD) will reach epidemic proportions in the United States. Therapies to ? date have focused on the anti-angiogenic therapy with mixed results. ? Recent studies would suggest that the immune system plays a significant ? role in the pathogenesis of AMD. The composition of drusen, one of the ? earliest clinical findings in AMD, have been extensively investigated. ? Complement, lipids, and lipoproteins B and E are commonly found in ocular ? drusen as they are in atherosclerotic plaques. Hageman et al have proposed ? that drusen are the product of a localized inflammatory response which ? would occur after retinal pigment epithelium injury. Recent reports have ? supported further the notion of the immune system playing a role (but yet ? to be fully defined) in AMD. The age related eye disease study (AREDS) ? evaluated the risk factors for the incidence of advanced age related ? macular degeneration and found that using anti-inflammatory medication ? significantly reduced (Odds Ratio 0.22, C.I. 0.08-0.59) the risk of ? developing the geographic atrophy form of AMD. Experimental models and ? patient material have, to date, suggested a role for macrophages and ? complement. We hypothesize that the underlying mechanism that leads to ? choroidal neovascularization (CNV) is similar to those at play in ? atherosclerosis. If this is the case, then CNV treatment should be ? amenable to new immunomodulatory agents directed against specific parts of ? the immune system.? After therapy with anti-angiogenic agents not leading to a persistent ? remission of choroidal neovascularization due to age related macular ? degeneration, participants will be treated with one of three ? immunomodulatory agents or will be observed in conjunction with their ? continued anti-angiogenic therapy. Thus the participant will continue with ? the anti-angiogenic therapy they are receiving after randomization. We ? hypothesize that this combination therapy will inhibit progression of ? choroidal neovascularization (CNV) associated with age related macular ? degeneration (AMD).This is an open-label, phase II, randomized, single ? center clinical trial of 20 study participants randomized to receive one ? of three immunomodulatory agents or will be observed in conjunction with ? their anti-angiogenic therapy. Patients will be randomized to receive other ? rapamycin, daclizumab, remicade, or observation in conjunction with any ? anti-angiogenic therapy the treating physician deems necessary. Patients ? will be evaluated after 6 months of therapy. While recruitment has not yet been completed and numbers are small, trends may become evident in the near future.

Agency
National Institute of Health (NIH)
Institute
National Eye Institute (NEI)
Type
Intramural Research (Z01)
Project #
1Z01EY000439-02
Application #
7594096
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
2
Fiscal Year
2007
Total Cost
$488,942
Indirect Cost
Name
U.S. National Eye Institute
Department
Type
DUNS #
City
State
Country
United States
Zip Code
Yeh, Steven; Albini, Thomas A; Moshfeghi, Andrew A et al. (2012) Uveitis, the Comparison of Age-Related Macular Degeneration Treatments Trials (CATT), and intravitreal biologics for ocular inflammation. Am J Ophthalmol 154:429-435.e2
Nussenblatt, Robert B; Liu, Baoying; Li, Zhuqing (2009) Age-related macular degeneration: an immunologically driven disease. Curr Opin Investig Drugs 10:434-42
Austin, Bobbie Ann; Liu, Baoying; Li, Zhuqing et al. (2009) Biologically active fibronectin fragments stimulate release of MCP-1 and catabolic cytokines from murine retinal pigment epithelium. Invest Ophthalmol Vis Sci 50:2896-902
Nussenblatt, Robert B; Coleman, Hanna; Jirawuthiworavong, Guy et al. (2007) The treatment of multifocal choroiditis associated choroidal neovascularization with sirolimus (rapamycin). Acta Ophthalmol Scand 85:230-1
Nussenblatt, Robert B; Ferris 3rd, Frederick (2007) Age-related macular degeneration and the immune response: implications for therapy. Am J Ophthalmol 144:618-26