Lucentis for Cystoid Macular Edema for Non-Ischemic Retinopathy - Full Text View

Sponsors and Collaborators:	Retina Institute of Hawaii Genentech
Information provided by:	Retina Institute of Hawaii
ClinicalTrials.gov Identifier:	NCT00464581

Purpose

Cystoid macular edema (CME) is the most common cause of suboptimal post-operative visual acuity in uncomplicated cataract extractions. Over two million cataract extractions are performed each year, with a reported incidence ranging from 1.5 to 6.9%, resulting in an estimated 20,000-130,000 new cases of CME annually. Clinical CME historically was associated with visual acuity of 20/40 or worse with fluorescein angiographic evidence of macular edema in a classic petaloid pattern. Angiographic CME physiologically signals an inflammatory process causing distortion of the outer plexiform layer, which if not resolved quickly could result in non-repairable visual loss. Topical, periocular, or intravitreal corticosteroids, despite their associated side effects, are the mainstay for pharmacologic treatment for patients with CME. Their efficacy has never been demonstrated in a randomized, controlled and blinded study.

This is an open-label, Phase II study of intravitreally administered ranibizumab in subjects with cystoid macular edema secondary to non-ischemic retinopathy, as seen following cataract surgery with intraocular lens implantation.

Condition	Intervention	Phase
Cystoid Macular Edema	Drug: Lucentis (ranibizumab)	Phase II

Genetics Home Reference related topics: X-linked juvenile retinoschisis

MedlinePlus related topics: Cataract Edema Retinal Disorders

Drug Information available for: Ranibizumab

U.S. FDA Resources

Study Type:	Interventional
Study Design:	Treatment, Non-Randomized, Open Label, Historical Control, Single Group Assignment, Safety/Efficacy Study
Official Title:	A Single-Center Phase 2 Trial of Intravitreous Injections of Lucentis (Ranibizumab) in Subjects With Cystoid Macular Edema Secondary to Non-Ischemic Retinopathy

Further study details as provided by Retina Institute of Hawaii:

Primary Outcome Measures:

To evaluate the safety and tolerability of ranibizumab in patients with CME secondary to non-ischemic retinopathy [ Time Frame: 2 years ] [ Designated as safety issue: No ]

Secondary Outcome Measures:

Mean change in best corrected visual acuity (BCVA), as assessed by the number of letters read correctly on the ETDRS eye chart, at each month of months 0-12. [ Time Frame: 2 years ] [ Designated as safety issue: No ]
Proportion of subjects who remained at baseline VA or gained >0 lines of vision from baseline to week 24 and 52. [ Time Frame: 2 years ] [ Designated as safety issue: No ]
Mean change in central retinal thickness on OCT 3 from Baseline to week 24 and 52. [ Time Frame: 2 years ] [ Designated as safety issue: No ]
Changes observed on the Fluoreosceiien Angiographs from baseline to week 24 and 52. [ Time Frame: 2 years ] [ Designated as safety issue: No ]
Mean number of ranibizumab injections required. [ Time Frame: 2 years ] [ Designated as safety issue: No ]
Nidek MPI measurements taken at baseline, week 24, and week 52 [ Time Frame: 2 years ] [ Designated as safety issue: No ]
Proportion of subjects who demonstrate complete resolution of macular edema as seen on OCT testing from baseline to week 52 [ Time Frame: 2 years ] [ Designated as safety issue: No ]

Estimated Enrollment:	30
Study Start Date:	May 2007
Estimated Study Completion Date:	December 2009
Estimated Primary Completion Date:	December 2009 (Final data collection date for primary outcome measure)

Intervention Details:

Lucentis 0.5mg administered monthly for the first 6 months and PRN for the next 6 months based on OCT results.

Detailed Description:

Vascular endothelial growth factor (VEGF) is known to be induced by hypoxia and has been implicated in the development of iris and retinal vascularization. VEGF, however, is also known to be a potent mediator of vascular permeability in other tissues and may perform this function in retina.

Immunohistochemical VEGF staining has been identified in patients with disorders such as aphakic and pseudophakic cystoid macular edema, ocular inflammatory disease and infection. VEGF was primarily localized within retinal neurons and within the retinal pigment epithelium in these cases. In addition or in association with its role of inducing neovascularization (Wet AMD and diabetic retinopathy, VEGF may contribute to the breakdown of the blood-retinal barrier in a variety of disorders.

Ranibizumab is a pan-VEGF A blocker that has been proven highly effective for the treatment of wet macular degeneration. The underlying pathophysiology of both cystoid macular edema and wet AMD is VEGF overproduction.

To date ranibizumab has been approved only for treating wet ARMD. In this study we will explore ranibizumab for the treatment of cystoid macular edema It is hypothesized that this population will show dramatic improvement as the initial cause of VEGF production can be isolated to the surgical procedure and due to the fact that the retinal pigment epithelium is healthier in this population as compared to the macular degeneration counterparts.

Eligibility

Ages Eligible for Study:	up to 90 Years
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	Yes

Criteria

Inclusion Criteria:

Ability to provide written informed consent and comply with study assessments for the full duration of the study
Age < 90 years
Cystoid macular edema, documented by FFA
Best corrected visual acuity in the study eye between 85 and 20 ETDRS letters or between 20/30 and 20/800 in a Snellen chart.
Women must be using two forms of effective contraception, be post¬menopausal for at least 12 months prior to trial entry, or surgically sterile; if of child-bearing potential, a urine pregnancy test must be performed within 7 days prior to the first injection with a negative result. If the test is positive, a serum test must be done to confirm. The two forms of effective contraception must be implemented during the trial and for at least 60 days following the last dose of test medication.

Exclusion Criteria:

Significant media opacities, which might interfere with visual acuity.
Any ocular or periocular infection in the past 4 weeks.
Presence of pigment epithelial tears or rips.
Any of the following underlying diseases including:
- Diabetic retinopathy.
- History or evidence of severe cardiac disease (e.g., NYHA Functional Class III or IV - see Appendix 16.6), clinical or medical history of unstable angina, acute coronary syndrome, myocardial infarction or revascularization within 6 months, ventricular tachyarrhythmias requiring ongoing treatment.
- History or evidence of clinically significant peripheral vascular disease, such as intermittent claudication or prior amputation.
- History or evidence of clinically significant impaired renal or hepatic function
- Stroke (within 12 months of trial entry).
- Any major surgical procedure within one month of trial entry.
Previous therapeutic radiation in the region of the study eye.
Any treatment with an investigational agent in the past 30 days for any condition.
Known serious allergies to the fluorescein dye used in angiography or to the components of ranibizumab formulation.

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00464581

Locations

United States, Hawaii
Retina Institute of Hawaii
Honolulu, Hawaii, United States, 96815

Sponsors and Collaborators

Retina Institute of Hawaii

Genentech

Investigators

Principal Investigator:

Michael D Bennett, MD

Retina Institute of Hawaii

More Information

Responsible Party:	Retina Institute of Hawaii ( Michael D. Bennett, MD )
Study ID Numbers:	FVF4153s
Study First Received:	April 19, 2007
Last Updated:	December 5, 2008
ClinicalTrials.gov Identifier:	NCT00464581
Health Authority:	United States: Food and Drug Administration

Keywords provided by Retina Institute of Hawaii:

non-ischemic retinopathy

Study placed in the following topic categories:

Signs and Symptoms
Macular Edema
Eye Diseases
Neoplasm Metastasis
Retinal Degeneration

Macular Degeneration
Edema
Retinal Diseases
Retinal degeneration

ClinicalTrials.gov processed this record on January 16, 2009