- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00996684
Study of Intravitreal Microplasmin in Relieving Vitreo-Macular Adhesion in Neovascular Age-related Macular Degeneration (AMD)
Resolution of Vitreomacular Adhesion (VMA) Associated With Neovascular Age Related Macular Degeneration (AMD) With Intravitreal Microplasmin
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The human vitreous gel undergoes progressive liquefaction with age. Concurrent with the process of vitreous liquefaction, there is a weakening of the adhesion at the vitreoretinal interface between the cortical vitreous gel and the inner limiting lamina. Posterior vitreous detachment (PVD) is a separation of the cortical vitreous get from the inner limiting lamina. PVD is usually a sudden event during which liquefied vitreous from the center of the vitreous body bursts through a hole in the posterior vitreous cortex and then dissects the residual cortex gel away from the inner limiting lamina. If there is residual vitreoretinal traction around the break, this process may induce a tear in the retina that can in turn result in rhegmatogenous retinal detachment, macular hole, or cystoid macular edema. The importance of the vitreous in the progression of diabetic retinopathy may also extend beyond tractional considerations. For example, it is believed that the vitreous serves as scaffolding for new vessel formation and may also contribute to molecular imbalances that lead to retinopathy progression. Therefore, total PVD, by releasing vitreoretinal traction as well as other potential mechanisms, may be beneficial in various vitreoretinal diseases such as neovascular AMD.
Vitreomacular adhesion (VMA) in exudative (wet) AMD may be associated with poor prognosis in patients with AMD. This trial is primarily aimed at showing that release of VMA can be induced by microplasmin, a proteolytic enzyme, in patients with wet AMD, and that microplasmin is safe in patients w/ neovascular (wet) AMD. Secondary endpoint will be assessment of improved AMD outcomes.
Study Type
Enrollment (Anticipated)
Phase
- Phase 2
Contacts and Locations
Study Locations
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California
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Los Angeles, California, United States, 90095
- Recruiting
- Jules Stein Eye Institute/UCLA
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Principal Investigator:
- Steven D Schwartz, M.D.
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Sub-Investigator:
- Jean-Pierre Hubschman, M.D.
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Male or female subjects aged 50 years or older
- Presence of focal vitreomacular adhesion as seen by OCT
- BCVA of 20/800 or better in non-study eye
- Presence of active choroidal neovascular membrane
- Written informed consent obtained from subject prior to inclusion in the trial
Exclusion Criteria:
- Subjects who have previously received microplasmin
- Subjects with any vitreous hemorrhage or any other vitreous opacification which precludes adequate examination or investigation of study eye
- Patient with uncontrolled glaucoma including IOP >25 mm Hg
- Subjects who have had vitrectomy or retinal detachment or who are aphakic or highly myopic (>8.0 D) in the study eye
- Subjects who are pregnant or of child-bearing potential not utilizing an acceptable form of contraception. Acceptable methods include intrauterine device, oral, implanted or injected contraceptives, and barrier methods with spermicide.
- Subjects who, in the Investigator's view, will not complete all visits and investigations
- Patient who have PDT or any intravitreal injection in the last 10 days. Patients who in the examiners opinion will need intravitreal injection in the next 10 days (apart from microplasmin).
- Patients who have participated in an investigational drug trial in the past 30 days.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: QUADRUPLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: microplasmin, intravitreal injection
Subjects will receive one intravitreal injection of microplasmin on Day 0.
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Microplasmin, 1.875 mg, will be given by intravitreal injection,on Day 0.
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PLACEBO_COMPARATOR: Placebo
Subjects will receive one intravitreal injection of the placebo on Day 0.
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The placebo control will be the microplasmin vehicle without the microplasmin.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
The primary outcome is the proportion of patients in whom there is release of vitreomacular traction as assessed by ultrasonography, optical coherence tomography and physical examination
Time Frame: Day 28
|
Day 28
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Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Total number of ranibizumab injections following microplasmin in those with PVD compared with those without PVD
Time Frame: 12 months
|
12 months
|
Change in mean macular thickness
Time Frame: Day 28 and month 12
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Day 28 and month 12
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Mean change in ETDRS visual acuity
Time Frame: Day 28 and Month 12
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Day 28 and Month 12
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Incidence and severity of ocular adverse events
Time Frame: Day 28 and Month 12
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Day 28 and Month 12
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Incidence and severity of nonocular adverse events
Time Frame: Day 28 and Month 12
|
Day 28 and Month 12
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Steven D Schwartz, M.D., University of California, Los Angeles
Study record dates
Study Major Dates
Study Start
Primary Completion (ANTICIPATED)
Study Completion (ANTICIPATED)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ESTIMATE)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- JSEI-TG-AMD-001
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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