Active clinical trials for "Macular Degeneration"

Visual outcomes using monthly ranibizumab therapy are well established in clinical trials, but the best way to assess when and how to treat patients with PRN therapy has not been proven. Information is lacking on Multi-focal ERG and microperimetry outcomes with ranibizumab therapy. Additionally, VA and OCT outcomes don't always correlate and other assessments such as the Multi-focal ERG and microperimetry may be useful as early predictors of when patients should be retreated. This study will assess 2 groups (monthly and PRN therapy) and assess high resolution OCT, microperimetry, and Multi-focal ERG outcomes. For the PRN group retreatment will be based on OCT criteria. We will investigate if microperimetry or multifocal ERG would have been an early predictor of fluid recurrence.

Ranibizumab is derived from a murine monoclonal anti- vascular endothelial growth factor (VEGF) antibody and can penetrate through the many retinal cell layers following intravitreal injection. The present study is directed towards the assessment of ranibizumab administered on the same day in combination with verteporfin in patients with subfoveal CNV secondary to ARMD

Aims of the trial: Establishing the profile of the growth factors and other mediators of angiogenesis in different ocular fluids (aqueous humour, vitreous gel and ocular liquid in vitrectomized eyes), in the 2 most frequent proliferative retinopathies - diabetic proliferative retinopathy (PDR) and exudative age related macular degeneration (AMD). Following up the dynamic of this profile before and after intravitreal administration of Bevacizumab (Avastin) as an anti-VEGF blocker. Materials: The research will be conducted on the following categories of patients groups: nondiabetic patients without AMD or any other diagnosed proliferative ocular disease (controls) patients with age related macular degeneration (AMD groups) before and after intravitreal injections with Avastin diabetic patients with different types of diabetic retinopathy, before and after intravitreal Avastin (diabetic groups) Methods: Samples from different ocular fluids will be collected from each group of patients. 10 growth factors and other 10 cytokines will be determined in the ocular fluids samples. Results: The results from the biochemical measurements will be statistically interpreted in order to obtain conclusions for the clinical practice. Conclusions: The conclusions of this trial will be used exclusively for research publications and communications, as well as for clinical practice.

The purpose of this study is to compare 12-month results of two single initial treatments-photodynamic therapy with verteporfin alone and this therapy combined with intravitreal bevacizumab-for neovascular age-related macular degeneration, not including patients with polypoidal choroidal vasculopathy who were presumed to have age-related macular degeneration.

The purpose of this study is to provide compassionate use of anecortave acetate sterile suspension of 15 mg for a series of five patients as a means to control classic neovascularization following failure of treatment with photodynamic therapy using Visudyne.

The investigators wish to better understand the role of the choriocapillaris (CC) in the formation and progression of non-exudative in age related macular degeneration (armd) by imaging the retinal pigment epithelium (rpe) and the choroidal microvasculature and by studying their inter-dependence to determine if the loss of the CC could prove useful as an anatomic clinical trial endpoint in future drug trials.

The primary objective of this study is to assess whether compositional and functional alterations of the gut metagenome may be related to AMD. The primary variable for this assessment is the composition of the gut metagenome which will be analyzed by shotgun sequencing to characterize the faecal metagenome. The secondary endpoint is to assess whether single nucleotide polymorphisms in CFH, ARMS2, C3, PLEKHA1, HTRA-1, VEGF-A, VEGF-B, VEGFR and APOE genes which have been shown to be risk factors for the development of AMD and other macular diseases correlate with alterations in the gut metagenome .

Geographic atrophy (GA) causes the loss of the retinal pigment epithelium (RPE) cells in broad areas of the retina. The application of subthreshold micropulse laser spots in healthy RPE in the vicinity of the area of GA may restore the imbalance in survival factors caused by the disease (ie, the laser may decrease vascular endothelial growth factor and RPE-derived transforming growth factor beta, upregulation of pigment epithelium-derived factor). This may slow or even stop the enlargement of atrophy secondary to GA, and therefore, avoid further vision loss.

This clinical trial investigates the impact of intravitreal injection of Ranibizumab antibody on the acuteness of vision. Patients included are suffering from choroidal neo-vascularization (CNV) as a consequence of age-related macular degeneration (AMD). Initially, all patients get injections of 0.5 mg Ranibizumab in monthly intervals for 3 months. Subsequently, one group gets Ranibizumab in intervals of 2 months, whereas a second group is treated on demand. The primary end point of the study is the change of best-corrected visual acuity after 12 month. Secondary end points include the impact of Ranibizumab on morphological changes of the retina, the number of patients with gain or loss of 15 or more letters visual acuity after 12 months, changes in quality of life and the number of injections required during the first 12 months of treatment.

A multicentre, randomised, parallel group, sham-controlled, double-masked, dose-ranging study, investigating two doses of OPT-302 in combination with ranibizumab compared with ranibizumab with sham, over six consecutive monthly dosing cycles in participants with neovascular (wet) AMD.