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The purpose of this study is to evaluate the safety and efficacy of topical ophthalmic squalamine lactate eye drops in treating patients with neovascular age-related macular degeneration (wet AMD), a degenerative retinal eye disease that causes a progressive, irreversible, severe loss of central vision.
Age-related macular degeneration (AMD) is a degenerative retinal eye disease that causes a progressive loss of central vision. AMD is the leading cause of legal blindness among adults age 50 or older in the Western world and affects 25-30 million people globally. This number is expected to triple over the next 25 years. Central vision loss from AMD is caused by the degeneration of light-sensing cells in the macula called photoreceptors. The macula, the central portion of the retina, is responsible for perceiving fine visual detail. As photoreceptors begin to degenerate, so does the individual's central vision. The extent of vision loss varies widely and is related to the type of AMD, its severity and other individual characteristics.
AMD presents itself in two different forms - a "dry" form and the more severe "wet" form. Dry AMD, the more common and milder form of AMD, accounts for 85% to 90% of all cases. It results in varying forms of sight loss and may or may not eventually develop into the wet form. Although the wet form of AMD accounts for only 10% to 15% of all AMD, the chance for severe sight loss is much greater. Wet AMD is responsible for 90% of severe vision loss associated with AMD. Approximately 500,000 new cases of wet AMD are diagnosed annually worldwide. In North America alone, approximately 200,000 new cases of wet AMD are diagnosed each year.
Squalamine lactate has been found to be an inhibitor of new blood vessel formation (angiogenesis) induced by VEGF, PDGF or bFGF. Since angiogenesis is implicated in the growth and maintenance of choroidal neovascularization, squalamine lactate is potentially an attractive development candidate in the treatment of age-related macular degeneration (AMD), in which blood vessel proliferation has a role.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Squalamine | Experimental | Squalamine eye drop 0.2% |
|
| Vehicle Control | Placebo Comparator | Eye drop vehicle control |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Squalamine lactate | Drug | Ophthalmic solution 0.2% |
| |
| Vehicle control |
| Measure | Description | Time Frame |
|---|---|---|
| Need for continued concomitant therapy | Lucentis (ranibizumab) is the current standard of care for the treatment of wet AMD. All patients will receive an initial injection of Lucentis prior to randomization and then be evaluated monthly for their need for further Lucentis injections using protocol defined retreatment criteria. | 9 months |
| Measure | Description | Time Frame |
|---|---|---|
| Best Corrected Visual Acuity (BCVA) | Evaluation of the effect of treatment on visual function (BCVA) as measured using the EDTRS chart measured at an initial distance of 4 meters. | 9 months |
| Number of subjects with adverse events as a measure of safety and tolerability |
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Inclusion Criteria:
≥50 years of age, male or female
Have the following criteria in the study eye:
Female subjects must be 1-year postmenopausal or surgically sterilized, Women of childbearing potential must have a negative urine pregnancy test and must use an acceptable method of contraception throughout the study.
Be willing and able to provide signed informed consent prior to participation in any study-related procedures.
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Retina Associates SW | Tucson | Arizona | 85710 | United States | ||
| California Retinal Consultants |
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| Drug |
Ophthalmic solution vehicle control |
|
The frequency, severity, seriousness of all adverse events including their relationship to study drug and effect on discontinuation from the study will be monitored, recorded and analysed. |
| 9 months |
| Bakersfield |
| California |
| 93309 |
| United States |
| Retina-Vitreous Associates | Beverly Hilss | California | 90211 | United States |
| Colorado Retina | Golden | Colorado | 80401 | United States |
| Florida Eye Microsurgical Institute Inc. | Boynton Beach | Florida | 33426 | United States |
| Retina Health Center | Fort Myers | Florida | 33907 | United States |
| Midwest Eye Institute | Indianapolis | Indiana | 46290 | United States |
| Elman Retina | Baltimore | Maryland | 21237 | United States |
| Cumberland Valley Retina Consultants | Hagerstown | Maryland | 21740 | United States |
| Ophthalmic Consultants of Boston | Boston | Massachusetts | 02114 | United States |
| Vision Research Foundation | Grand Rapids | Michigan | 49546 | United States |
| Vision Research Foundation | Royal Oak | Michigan | 48073 | United States |
| Vision Research Foundation | Traverse City | Michigan | 49686 | United States |
| Total Practice Management | New Brunswick | New Jersey | 08901 | United States |
| Macula Care | New York | New York | 10021 | United States |
| Retina Associates of Cleveland | Cleveland | Ohio | 44122 | United States |
| PA Retina | Camp Hill | Pennsylvania | 17011 | United States |
| TN Retina | Nashville | Tennessee | 37203 | United States |
| Medical Center Ophthalmology Associates | San Antonio | Texas | 78240 | United States |
| University of Wisconsin | Madison | Wisconsin | 53705 | United States |
| ID | Term |
|---|---|
| D008268 | Macular Degeneration |
| ID | Term |
|---|---|
| D012162 | Retinal Degeneration |
| D012164 | Retinal Diseases |
| D005128 | Eye Diseases |
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| ID | Term |
|---|---|
| C488568 | squalamine lactate |
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