Active clinical trials for "Retinal Diseases"

This study is designed to investigate the safety, PK/PD, biomarker and early clinical effects of repeat GEM103 IVT injections.

To identify biomarkers, obtained using non-invasive procedures, that can predict disease progression and progression to sight-threatening stages of the disease and to characterize the retinal changes that occur in Non Proliferative Diabetic Retinopathy (NPDR).

The purpose of this study is to assess the efficacy and safety of up to 3 intravitreal injections of ocriplasmin (0.0625mg or 0.125mg), in subjects with moderate to very severe non-proliferative diabetic retinopathy (NPDR), to induce total posterior vitreous detachment (PVD) in order to reduce the risk of disease progression to proliferative diabetic retinopathy (PDR).

The pilot study evaluates the efficacy and safety of Canakinumab (ILARIS®) in subjects with proliferative diabetic retinopathy secondary to type 1 and 2 diabetes. Ten subjects will be enrolled to receive 150 mg Canakinumab (ILARIS®) by subcutaneous injection. Beginning on day 0, each subject will receive a subcutaneous injection of study drug every 8 weeks for 16 weeks, a total of 3 injections. All subjects will undergo regular follow-up assessments every 8 weeks through 24 weeks. Fluorescein angiography (FA) is repeated every 8 weeks. In case of progression of retinal neovascularization on FA panretinal laser photocoagulation is administered as rescue therapy. The primary outcome is the regression of retinal neovascularizations (NVE and NVD) in FA at 24 weeks. In addition to key secondary outcomes including regression of diabetic macular edema, change in best-corrected visual acuity, change in HbA1c levels and change in markers of systemic inflammation. Safety will be assessed by measurements of vital signs, clinical laboratory assessments, and the recording of adverse clinical events.

Background: Central serous chorioretinopathy (CSC) is a disease that causes fluid to collect under the retina. It affects the macula, which is in the center of the retina and is needed for sharp, clear vision. In many cases, CSC resolves on its own and does not need treatment. However, in some cases it does not go away or comes back after treatment. This is known as chronic CSC. Chronic CSC may be caused by hormones called androgens. Finasteride is a drug that can alter the effects certain of androgens. Researchers want to compare finasteride with a placebo to see if it is a safe and effective treatment for chronic CSC. Objectives: - To see if finasteride is a safe and effective treatment for chronic CSC. Eligibility: - Individuals at least 18 years of age who have chronic CSC in one or both eyes. Design: Participants will be screened with a physical exam and medical history. A full eye exam will be performed. Blood and urine samples will also be collected. Some participants may have photodynamic therapy (PDT), the standard treatment for CSC. PDT helps to reduce the amount of fluid in the eye. Participants will need to wait for 3 months after PDT before starting the finasteride study. Participants will be separated into two groups. One group will take finasteride 5 mg (formulated into capsules); the other group will take a placebo capsule. All participants will take the capsules for 3 months. After 3 months on the assigned capsule (finasteride or placebo), all participants will have the opportunity to take finasteride for at least another 4 years and 9 months. This phase of the study is optional. Participants will have regular study visits. At each visit, they will have physical exams and eye exams. They will also provide blood and urine samples. During the first 3 months, participants will have 2 study visits. After 3 months, if the participant continues in the optional (or as needed) phase of the protocol, visits will occur at Month 6, Month 12 and every 12 months thereafter. However, additional visits may be needed.

Retinopathy of Prematurity (ROP) is a leading cause of blindness in children in developed countries around the world, and an increasing cause of blindness in developing countries. The retina lines the inside of the eye. It functions as "film" within the camera which is the eye. When an infant is born prematurely, the vascular network necessary to nourish the retina has not fully developed. As a consequence, in some infants abnormal vessels proliferate instead of the normal ones - a condition known as ROP. The abnormal vessels carry scar tissue along with them, and may lead to retinal detachment and blindness if the eye is not treated. The Multicenter Trial of Cryotherapy for Retinopathy of Prematurity (CRYO-ROP) Study demonstrated that ablation of the peripheral avascular retina reduced the risk of poor structural and visual outcome due to retinal distortion or detachment in ROP (1980's). The ablated retina is not functional and is not amenable to regeneration. Peripheral retinal ablation is not universally effective in fostering regression of ROP. This is particularly true for an aggressive form of ROP (aggressive posterior ROP, or APROP) which typically afflicts profoundly premature and infirm neonates. In this subset of infants, progression of ROP to bilateral retinal detachment and blindness occurs despite timely and complete peripheral retinal laser ablation. Rationale The development of ROP is largely dependent on vascular endothelial growth factor (VEGF). When an infant is born prematurely the relatively hyperoxic environment the baby is introduced to shuts down the production of VEGF. Retinal maturation is delayed. Subsequently, at a time when intraocular VEGF levels would normally be declining late in the third trimester of pregnancy, abnormally high levels of VEGF are seen due to large areas of avascular retina and associated tissue hypoxia. The availability of FDA-approved drugs for anti-VEGF treatment renders it possible to treat such eyes off-label. Available drugs include pegaptanib sodium (Macugen) for partial blockage of VEGF-A, or drugs such as ranibizumab (Lucentis) and bevacizumab (Avastin), which cause complete blockage of VEGF-A. As VEGF is required in the developing retina for normal angiogenesis, and our goal is not to penetrate tissue, but to block the excessive levels of VEGF trapped within the overlying vitreous which is responsible for the abnormal vasculature in ROP. For purposes of this study the investigators have chosen bevacizumab (Avastin), which will: a) attain complete blockage (vs. Macugen) of intravitreal VEGF-A, and; b) which is limited in its ability to penetrate tissues because it is a full antibody (vs. Lucentis, an antibody fragment specifically designed for better tissue penetration), and is more likely to restore VEGF homeostasis within the developing retina.

Phase III study comparing monthly octreotide i.m. in comparison to no additional treatment in patients with proliferative diabetic retinopathy after lasercoagulation.

This is a prospective clinical study conducted at one clinical site in the United States.

This multicenter, open-label extension study will evaluate the long-term tolerability and safety for patients completing study CSMS995 0802. During this extension study, all patients will receive open-label treatment of octreotide acetate in microspheres every 4 weeks for 2 years for the treatment of moderately severe to severe NPDR and low risk PDR.

Study Aims Understanding the gut microbiome profile in very low birth weight infants with or without ROP. The onset and aggravation of ROP and their relationship with gut microbiome will be examined. Understanding the serum inflammatory cytokine profile in these infants and its relationship with the onset and progression of ROP. Their changes and association with the other systemic disorders such as NEC or RDS or sepsis will be explored. Examiningthe associations amongmicrobiome profile and serum inflammatory cytokines and their relationship with ROP clinical features (prematurity without ROP, ROP without treatment, and ROP with treatment) in the study participant