Bloodstream Absorption of Avastin and Lucentis After Injection Into the Eye

NCT ID: NCT01661946

Last Updated: 2019-05-31

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-08-31

Study Completion Date

2013-08-31

Brief Summary

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Currently, two similar medications are available for injection into the eye to treat a variety of eye diseases. These medications are called ranibizumab (Lucentis) and bevacizumab (Avastin). They both have a similar mechanism of action and work equally well, however only ranibizumab was designed for use in the eye. It is significantly more expensive per injection than bevacizumab (by a factor of roughly 40x).

In published studies trends have been noted towards an increased rate of systemic side effects such as heart attacks and strokes. This is presumably due to absorption of the drug(s) from the eye into the bloodstream, however this has never been shown before. The purpose of the investigators study was to compare the bloodstream levels of bevacizumab and ranibizumab at various time points after injection into the eye. This required the creation of a sophisticated assay to measure blood levels of the drugs.

Detailed Description

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see above

Conditions

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Diabetic Macular Edema

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Ranibizumab

intravitreal injection of 0.5mg ranibizumab in usual fashion

Group Type ACTIVE_COMPARATOR

Ranibizumab

Intervention Type DRUG

Ranibizumab is a vascular endothelial growth factor inhibitor designed for ocular use

Bevacizumab

intravitreal injection of 1.25mg bevacizumab in usual fashion

Group Type ACTIVE_COMPARATOR

Bevacizumab

Intervention Type DRUG

Bevacizumab is an off-label but cheaper treatment for diabetic macular edema.

Interventions

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Bevacizumab

Bevacizumab is an off-label but cheaper treatment for diabetic macular edema.

Intervention Type DRUG

Ranibizumab

Ranibizumab is a vascular endothelial growth factor inhibitor designed for ocular use

Intervention Type DRUG

Other Intervention Names

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Avastin Lucentis

Eligibility Criteria

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Inclusion Criteria

* patients in whom anti-vascular endothelial growth factor (VEGF) therapy is indicated for the treatment of diabetic macular edema
* able to return for extra clinic visits according to study schedule

Exclusion Criteria

* active malignancy
* previous retinal laser treatment
* previous anti-VEGF therapy
* previous vitrectomy
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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The Physicians' Services Incorporated Foundation

OTHER

Sponsor Role collaborator

Queen's University

OTHER

Sponsor Role lead

Responsible Party

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Dr. Sanjay Sharma

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Sanjay Sharma, MD MBA MSc FRCSC

Role: PRINCIPAL_INVESTIGATOR

Department of Ophthalmology, Queen's University

Locations

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Hotel Dieu Hospital

Kingston, Ontario, Canada

Site Status

Countries

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Canada

Other Identifiers

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QueensU

Identifier Type: -

Identifier Source: org_study_id

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