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Gene Signal Enters Phase III Clinical Tests for the Prevention of Corneal Graft Rejection
Date:11/10/2008


- Gene Signal International, a Biotech Company Registered in

Switzerland, Will Move its Headquarter to the EPFL, in Lausanne,

- Gene Signal is Addressing Various Issues Related to Neovascularisation,

- Gene Signal is Working on a Portfolio of Ophthalmologic Indications,

With One Now in Phase III Trials

- Gene Signal Will Present its Interim Results at the Annual Meeting of

the American Academy of Ophtalmologist in Atlanta, USA, the

Largest Scientific Convention in this Field

Gene Signal, a biotech company registered in Switzerland, is currently starting the Phase III study of GS-101, its most advanced therapeutic ophthalmic solution, for the prevention of corneal graft rejection.

Every year, over 40'000 corneal grafts are performed worldwide to cure or prevent blindness, thus making this procedure the most frequently performed transplant surgery. However, the 5 year failure rate for corneal grafts is currently around 35%. As many other graft procedures, donor grafts are always in limited supply. A failure is even more "wasteful" in this context of long waiting lines (6 months - 2 years).

One of the main reasons for graft failure is the immune response of the body. Normally, the cornea is avascular (i.e. deprived of blood vessels), protecting the donor cornea from being rejected. However, under certain circumstances, new blood vessel creation (neovascularization) occurs, inducing an immune response to the donor graft that can lead to immunological corneal graft rejection.

Currently, there is no therapy available. Gene Signal is working on new ways to prevent this syndrome. With its antisense oligonucleotide approach, it aims to block the pathways leading to the formation of blood vessels in the cornea. This approach uses short DNA fragments that specifically target and block the production of a protein that is required for the formation and growth of new blood vessels.

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SOURCE Gene Signal International SA
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