Clinical trial NCT00793923: A Prospective Study Comparing Ranibizumab Plus Dexamethasone Combination Therapy Versus Ranibizumab Monotherapy for Wet AMD
Official title: A Prospective Study Comparing Ranibizumab Plus Dexamethasone Combination Therapy Versus Ranibizumab Monotherapy for Wet Age-related Macular Degeneration
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE1
PHASE2
Conditions: Exudative Age-Related Macular Degeneration
Keywords: Exudative Age Related Macular Degeneration
Lead sponsor: Bay Area Retina Associates
Sponsor class: OTHER
Collaborators: name: Bay Area Retina Associates
First posted: 2008-11-19
Enrollment: 40
Sex: ALL
Minimum age (years): 50
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: SUPPORTIVE_CARE

Brief summary: The primary objective of this proposed research study is to evaluate the safety of intravitreal ranibizumab in combination with intravitreal dexamethasone in comparison to intravitreal ranibizumab alone in the treatment of wet ARMD. The addition of the broad spectrum anti-inflammatory activity of dexamethasone may augment the anti-VEGF activity of ranibizumab by amelioration of inflammation existing in the microenvironment of the choroidal neovascularization. While the anti-VEGF agents have proven to be very efficacious in the treatment of exudative ARMD, their narrow target and window of activity may limit their overall durability of action.

Detailed description: A prospective, single masked comparative trial using either combination therapy (group 1): same day combination therapy with 0.05cc intravitreal dexamethasone injection (10mg/ml vial) and a single 0.5 mg intravitreal ranibizumab injection for four consecutive months will be compared to monotherapy (group 2): one intravitreal injection of 0.5 mg ranibizumab also given for four consecutive months. These treatments will then be followed by PRN treatment based on clinical exam, angiographic studies, and OCT evidence of residual subretinal fluid, CME, subretinal hemorrhage, or pigment epithelial detachment. Fluorescein angiography and fundus photography will be performed at baseline and at the 1, 3, 6, and 12 month follow-up visits. Only OCT testing will be performed at all follow-up visits. Both groups will be re-evaluated for safety at 12 and 24 months.

Eligibility criteria: Inclusion Criteria:

• Best Corrected Visual Acuity at 4 meters using ETDRS Charts between 20/32 and 20/400 (Snellen Equivalent) in the study eye with evidence of neovascular ARMD.

(Only one eye will be eligible for study. If both eyes are eligible, the one with the better visual acuity will be selected for treatment unless, based on medical reasons, the investigator deems the other eye to be more appropriate for treatment and study.)

* All lesion subtypes will be enrolled with the following criteria Predominantly and minimally classic: Angiographic lesion greater than 50% of the total lesion area Occult: Lesions must show recent activity progression with respect to vision, subretinal hemorrhage or subretinal fluid
* Signed informed consent
* Age greater than or equal to 50 years

Exclusion Criteria:

* Previous treatment for ARMD in the study eye
* Previous intravitreal drug delivery in the study eye
* Previous vitrectomy in the study eye
* Fibrosis or atrophy involving the center of the fovea in the study eye
* Neovascular membrane from any other concurrent retinal disease such as high myopia (SER \> -8D), histoplasmosis or other ocular inflammatory disease.
* Known history of glaucoma and on more than one topical medication
* History of glaucoma filtering surgery in the study eye
* History of corneal transplant in the study eye
* Patients with active co-existing macular disease such as diabetic macular edema
* Active intraocular inflammation in the study eye
* History of allergy to fluorescein not amenable to treatment
* Pregnancy (positive pregnancy test) or lactation
* Premenopausal women not using adequate contraception. The following are considered effective means of contraception: surgical sterilization or use of oral contraceptives, barrier contraception with either a condom or diaphragm in conjunction with spermicidal gel, an IUD, or contraceptive hormone implant or patch.
* Any other condition that the investigator believes would pose a significant hazard to the subject if the investigational therapy were initiated
* Inability to comply with study or follow up procedures
* Participation in another simultaneous medical investigation or trial

Primary outcomes:
measure: Incidence and severity of ocular adverse events and visual acuity
timeFrame: 6 months and 12 months
Secondary outcomes:
measure: Total number of treatments required
timeFrame: 12 months
Other outcomes:
Locations:
city: Walnut Creek
country: United States
facility: Bay Area Retina Associates
state: California
Study officials:
affiliation: Bay Area Retina Associates
name: Subhransu K Ray, M.D., Ph.D.
role: PRINCIPAL_INVESTIGATOR
References: