Last updated on May 2020

A Staged Study of the Safety and Effectiveness of ASP7317 in Senior Adults Who Are Losing Their Clear Sharp Central Vision Due to Dry Age-related Macular Degeneration

Brief description of study

This study is for adults 50 years or older who are losing their clear, sharp central vision. Central vision is needed to be able to read and drive a car. They have been diagnosed with dry age-related macular degeneration (called dry AMD). The macula is the part of the eye that allows one to see fine detail. AMD causes cells in the macula to die (atrophy). This study is looking at a new treatment for slowing or reversing dry AMD, called ASP7317. ASP7317 is a specially created type of cells derived from stem cells. ASP7317 cells are injected into the macula of the eye. Immunosuppressive medicines (called IMT) are also taken around the time of injection of the cells to prevent the body from rejecting them. The study is divided into 3 stages.

Stage 1 looks at the safety of ASP7317 at different dose levels. Researchers want to learn which of 3 different dose levels of ASP7317 work without causing unwanted effects. The doses are low, medium and high numbers of cells. IMT medicines will also be taken by mouth (oral) for 13 weeks around the time of the injection of ASP7317.

In Stage 2, the participants are selected by chance (randomization) to be in the ASP7317 treatment group or to be in the control group (no treatment). What was learned about the dose of ASP7317 in stage 1 will be used to determine the appropriate dose(s) in this stage. In those who receive ASP7317, oral IMT medicines will also be taken for 13 weeks. 26 weeks after ASP3717 is injected, the best corrected visual acuity will be compared between participants who received ASP7317 and in those who did not (control group). Visual acuity is a test to find out what the smallest letters are that one can read on a standard chart. This test will be masked. Masked means the study opticians who measure one's visual acuity don't know whether the participant received ASP7317 or not.

In Stage 3, participants in the untreated control group from stage 2 will have the option to receive treatment with ASP7317. They must have been in the study for 26 weeks and still meet the requirements for treatment.

Detailed Study Description

At the last study visit or time of withdrawal participants receiving ASP7317 will be consented to participate in the safety surveillance period of the study (under a separate protocol 7316-CL-0007), which will continue to monitor the participants for long-term safety via an annual questionnaire.

Clinical Study Identifier: NCT03178149

Recruitment Status: Closed

Brief Description Eligibility Contact Research Team

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