Advertisement

Topics

VEGF Concentrations After Intravitreal Bevacizumab vs Ranibizumab as a Treatment for Type 1 ROP

2017-05-11 13:23:21 | BioPortfolio

Summary

The Retinopathy of Prematurity (ROP) is one of the leading causes of blindness on the pediatric age worldwide. This pathology is characterized for arrest of the normal vascular and neuronal retina that because of pathological compensatory mechanisms results in proliferation of vascular tissue that grow in the limit between the vascular retina and the avascular retina.

The ET-ROP group classified the ROP by those who need treatment immediately or those who doesn't need treatment, The classification is the following Type 1 ROP-->ROP zone I any stage with plus, zone I stage 3 without plus, zone II stage 2 y 3 with plus Type 2 ROP --> Zone 1, Stage 2 or 3 without plus, and Zone II, stage 3 without plus.

The treatment is begun on patient with type 1 ROP and type 2 ROP is maintained in observation.

Description

It has been documented that de Vascular Endothelial Growth Factor (VEGF) is involved on the physiopathology of this disease.

The VEGF is a glucoprotein that regulates the angiogenesis and the vasculogenesis, it's presence is crucial on the growth and development of several tissues around the organism.

Nowadays the treatment of type 1 ROP it si focus on the disminution of the intravitreal VEGF after the intravitreal application of drugs like Bevacizumab and Ranibizumab.

However these drugs can pass through the hematorretinal barrier in to the blood stream where they can also decrease the systemic levels of VEGF.

We still don't know the long term effects of the intravitreal application of these drugs on premature babies, but there is the concern.

The objective of this study is to compare the serum VEGF concentrations after intravitreal application of Bevacizumab (0.500mg/0.02mL) versus Ranibizumab (0.25 mg/0.025mL) for the treatment of type 1 ROP.

HYPOTESIS: The serum VEGF concentrations after the intravitreal application of Bevacizumab will be smaller than the serum VEGF concentrations after the intravitreal application of Ranibizumab.

METHODOLOGY: Safety ECCA. Inclusion criteria, premature newborns who fulfill the criteria for type 1 ROP according to the ET-ROP classification.

When we identify the patients that can be included, we will take a blood sample of 500 microliters and then they would receive intravitreal treatment randomly (Bevacizumab 0.5mg/0.02mL or Ranibizumab 0.25mg/0.25 mL).

We will take new blood samples a day, 2 weeks and 8 weeks after the application of the intravitreal treatment, these samples will be frozen to further analysis.

The analysis will be performed by ELISA kits.

We are going to describe the results of the ELISA for the blood samples, and then we will compare between both groups.

Study Design

Conditions

Type 1 Retinopathy of Prematurity Both Eyes

Intervention

Bevacizumab Injection, Ranibizumab Ophthalmic

Status

Not yet recruiting

Source

Universidad Autonoma de San Luis Potosí

Results (where available)

View Results

Links

Published on BioPortfolio: 2017-05-11T13:23:21-0400

Clinical Trials [2827 Associated Clinical Trials listed on BioPortfolio]

Refractive Error and Biometry in Retinopathy of Prematurity

The investigators compared long-term refractive and biometric outcomes in children with retinopathy of prematurity who received two different anti-vascular endothelial growth factor agents...

Rainbow Extension Study

The purpose of this study is to evaluate the long term efficacy and safety of intravitreal ranibizumab compared with laser ablation therapy in patients who were treated for retinopathy of ...

Antiangiogenic Therapy With Bevacizumab in Retinopathy of Prematurity. Structural Outcome

Purpose:Retinopathy of prematurity (ROP) continues tobe a major cause of blindness in children. Although ablation of the retina with laser or cryotherapy reduces the incidence of blindness...

Use of Pan-Vascular Endothelial Growth Factor Receptor (Pan-VEGF) Blockade for the Treatment of Retinopathy of Prematurity (ROP) (Compassionate Use BLOCK-ROP)

The purpose of this study is to provide access to intravitreal injection of Avastin in high-risk infants who do not otherwise qualify for study NCT00702819, an investigational multi-site s...

Bevacizumab Eliminates the Angiogenic Threat of Retinopathy of Prematurity

This study will determine whether injections into the vitreous of an anti-vascular endothelial growth factor (VEGF) will reduce the incidence of blindness by suppressing the neovascular ph...

PubMed Articles [9838 Associated PubMed Articles listed on BioPortfolio]

Intravitreal Ranibizumab Injection for the Treatment of Retinopathy of Prematurity.

To evaluate the efficacy of a single injection of 0.3 mg of intravitreal ranibizumab for the treatment of retinopathy of prematurity.

Short-term intraocular pressure changes after intravitreal injection of bevacizumab for retinopathy of prematurity.

To evaluate the short-term changes in intraocular pressure (IOP) after intravitreal injection of bevacizumab (IVB) in premature infants with retinopathy of prematurity (ROP).

Neurodevelopmental Outcomes Following Intravitreal Bevacizumab Therapy for Retinopathy of Prematurity: a prospective, case-control study.

To evaluate the neurodevelopmental and ocular developmental outcomes in premature children who have undergone intravitreal bevacizumab injection (IVB) for treatment of type 1 retinopathy of prematurit...

Iatrogenic Crystalline Lens Injury in Pediatric Eyes Following Intravitreal Injection for Retinopathy of Prematurity.

To report the occurrence of lens injury during intravitreal anti-vascular endothelial growth factor (anti-VEGF) injection in infants with retinopathy of prematurity (ROP).

Large Spot Laser for Treatment of Retinopathy of Prematurity.

To compare large spot versus standard spot laser for treatment of retinopathy of prematurity (ROP).

Medical and Biotech [MESH] Definitions

A bilateral retinopathy occurring in premature infants treated with excessively high concentrations of oxygen, characterized by vascular dilatation, proliferation, and tortuosity, edema, and retinal detachment, with ultimate conversion of the retina into a fibrous mass that can be seen as a dense retrolental membrane. Usually growth of the eye is arrested and may result in microophthalmia, and blindness may occur. (Dorland, 27th ed)

Specialized ophthalmic technique used in the surgical repair and or treatment of disorders that include retinal tears or detachment; MACULAR HOLES; hereditary retinal disease; AIDS-related retinal infections; ocular tumors; MACULAR DEGENERATION; DIABETIC RETINOPATHY; and UVEITIS.

Adverse reactions that occur initially at the site of injection or infusion. Milder type is confined to a local allergic flare reaction. A more severe reaction is caused by extravasation of VESICANTS from the blood vessel at the site of injection and can cause damage to the surrounding tissue. In tumor flare reaction symptoms involve well beyond the injection site such as an increase in the tumor size and tumor markers levels, bone pain, and HYPERCALCEMIA.

A sensory branch of the trigeminal (5th cranial) nerve. The ophthalmic nerve carries general afferents from the superficial division of the face including the eyeball, conjunctiva, upper eyelid, upper nose, nasal mucosa, and scalp.

An anti-VEGF recombinant monoclonal antibody consisting of humanized murine antibody. It inhibits VEGF receptors and prevents the proliferation of blood vessels.

More From BioPortfolio on "VEGF Concentrations After Intravitreal Bevacizumab vs Ranibizumab as a Treatment for Type 1 ROP"

Advertisement
Quick Search
Advertisement
Advertisement

 

Relevant Topics

Pediatrics
Pediatrics is the general medicine of childhood. Because of the developmental processes (psychological and physical) of childhood, the involvement of parents, and the social management of conditions at home and at school, pediatrics is a specialty. With ...

Vascular
Vascular relates to blood vessels (Oxford Medical Dictionary) and can be used to describe the supply of blood, a disease affecting the blood vessels or molecules associated with these structures. For example, <!--LGfEGNT2Lhm-->atherosclerosis ...

Blood
Blood is a specialized bodily fluid that delivers necessary substances to the body's cells (in animals) – such as nutrients and oxygen – and transports waste products away from those same cells.  In vertebrates, it is composed of blo...


Searches Linking to this Trial