View clinical trials related to Uveitis.
Filter by:Recurrent anterior uveitis in immunocompetent individuals can be caused by multiple members of the herpes virus group, including cytomegalovirus (CMV). Repeated bouts of CMV intraocular inflammation can be associated with ocular hypertension, glaucoma, pain, vision reduction or blindness. CMV anterior uveitis is commonly misdiagnosed as a non-infectious anterior uveitis and treated as such, which can beget further complications. Diagnosis requires directed polymerase chain reaction (PCR) testing. While antiviral therapy exists for CMV, identifying the appropriate therapy has been challenging because no randomized trials comparing routes of therapy (particularly oral or topical) have been performed. Currently, CMV anterior uveitis is typically treated with oral valganciclovir in the United States but carries the risk of serious systemic side effects that necessitate laboratory monitoring. There is evidence that suggests topical ganciclovir can be used to treat and prevent recurrences of CMV anterior uveitis, though the appropriate concentration is not well defined. Topical ganciclovir is attractive because it does not require laboratory monitoring, though a unique side effect profile that includes corneal epitheliopathy and conjunctivitis may preclude long-term use. While anterior chamber paracentesis with polymerase chain reaction (PCR) testing demonstrates CMV during an initial flare of inflammation, it is unknown whether repeated recurrences of inflammation are mediated by viral re-infection and replication in the anterior chamber or if a sterile immune response is at play. Consequently, patients may be submitted to many years of oral or topical antiviral therapy. This strategy poses challenges without proper evaluation of the multiple treatment and long-term management approaches. Further studies are needed to elucidate the most appropriate antiviral therapies that balance efficacy and toxicity while treating CMV anterior uveitis. We hypothesize that the efficacy of oral valganciclovir in the treatment of cytomegalovirus (CMV) anterior uveitis will be greater when compared to topical or placebo treatments. This study will be a multicenter, double-masked, randomized, placebo-controlled clinical trial.
Sarcoidosis is a multisystem granulomatous disease that can affect nearly any organ in the body. While most commonly affecting the lungs, vision threatening eye involvement occurs in approximately 25% of patients with sarcoid. Eye involvement may lead to a chronic, sight-threatening uveitis which may result in cataract, glaucoma, and macular edema. The treatment of sarcoid uveitis involves the use of topical and systemic corticosteroids or potent immunosuppressive agents (medications that suppress the body's immune system) both of which can cause severe long-term side effects. The adverse effects of steroids may be avoided by treatment with the use as H.P. Acthar® Gel. The effectiveness of H.P. Acthar® Gel in the treatment of sarcoid uveitis and patient quality of live have not been previously examined. These issues, will be explored in this research.
The investigators hypothesize that it is safe and effective to treat patients with choroidal neovascularisation (abnormal blood vessels growing under the retina) secondary to uveitis with Conbercept. This will be a randomized, placebo-controlled trial. 20 patients will receive three injections of Conbercept into the affected eye (and repeated injections if required), and 20 patients will receive three sham injections requiring no needle stick, but making the patient unaware of whether or not he received active treatment. Outcome of the two treatment groups will be compared after one year.