Country for PR: United Kingdom
Contributor: PR Newswire Europe
Monday, January 13 2020 - 19:00
AsiaNet
Exonate Announces Collaboration With Janssen to Develop a New Eye Drop for the Treatment of Retinal Vascular Diseases Including Wet Age-related Macular Degeneration (AMD) and Diabetic Macular Oedema (DMO)
CAMBRIDGE, England, Jan. 13, 2020/PRNewswire-AsiaNet/--

The program, facilitated by Johnson & Johnson Innovation, has the potential to 
improve the treatment of patients with retinal vascular diseases and transform 
the lives of those suffering from vision loss. 

Exonate, an early stage biotechnology company, announced today that it has 
entered into a strategic collaboration agreement with Janssen Pharmaceuticals, 
Inc., one of the Janssen Pharmaceutical Companies of Johnson & Johnson. Through 
the collaboration, Exonate will work with Janssen Research & Development, LLC 
scientists to develop an eye drop treatment for retinal vascular diseases such 
as wet AMD and DMO by using mRNA targeted therapies. Exonate has developed 
small molecules that inhibit the production of pro-angiogenic vascular 
endothelial growth factor (VEGF) through the selective inhibition of 
serine/threonine-protein kinase (SRPK1)-mediated VEGF splicing. The agreement 
was facilitated by Johnson & Johnson Innovation.

Commenting on the announcement, Dr. Catherine Beech CEO of Exonate, said: "I am 
absolutely delighted to enter this strategic collaboration with Janssen, we are 
looking forward to successfully developing a novel treatment for retinal 
neovascular diseases."

About Exonate

Exonate is a privately held, early stage, biotech company spun out of the 
University of Nottingham that is focused on alternative splicing of Vascular 
Endothelial Growth Factor (VEGF) in ophthalmology. Exonate's lead programme is 
focused on Diabetic Macular Oedema (DMO). A consequence of diabetic 
retinopathy, DMO, is swelling in an area of the retina called the macula and 
wet Age-Related Macular Degeneration (wAMD), which is the leading cause of 
vision loss in people aged 60 and older.  The Company is founded on scientific 
excellence with strong links to Professor David Bates and his lab at Nottingham 
University specializing in the biology and biochemical pathways of VEGF splice 
variants.

Exonate has developed small molecules that inhibit production of pro-angiogenic 
VEGF through selective inhibition of serine/threonine-protein kinase 1 
(SRPK1)-mediated VEGF splicing.  These inhibitors have already demonstrated 
superior efficacy as topical agents in preclinical models of wet AMD.  Through 
a Wellcome Trust funded project, Exonate will complete regulatory toxicology 
and safety pharmacology studies to support an application to the regulatory 
authorities for clinical evaluation.  Exonate expects to reach this milestone 
and enter the clinic in mid-2020.

Exonate is led by an experienced, international management team that has 
previously worked together with cross-disciplinary experience in medicine and 
drug development, as well as successful fundraising for early stage companies.

About Diabetic Macular Oedema (DMO)*
DMO is the build-up of fluid (Oedema) in a region of the retina called the 
macula. The macula is important for the sharp, straight-ahead vision that is 
used for reading, recognizing faces, and driving. DMO is the most common cause 
of vision loss among people with diabetic retinopathy. About half of all people 
with diabetic retinopathy will develop DMO and although it is more likely to 
occur as diabetic retinopathy worsens, DMO can happen at any stage of the 
disease.

About wet Age-Related Macular Degeneration (wet AMD)
Today, wet AMD is a leading cause of vision loss in people aged 60 years or 
older and affects more than 30 million patients worldwide, over 200,000 of 
those in the UK alone. If untreated patients are likely to lose sight in the 
affected eye within 24 months of disease onset.

The main currently available treatment options for DMO and wet AMD are:
- anti-VEGF antibody drugs – to prevent the growth of new blood vessels in the
  eye. Unlike small molecule drugs or eye drops these treatments must be
  injected into the eye once every 1 or 2 months. Resistance can develop to
  these drugs causing the disease to progress anew. 
- Laser surgery – to destroy abnormal blood vessels in the eye. This type of 
  surgery is only suitable if blood vessel damage is not too extensive and if 
  the abnormal blood vessels aren't close to the fovea, as performing surgery
  close to this part of the eye can cause permanent vision loss. 
- With DMO, Corticosteroids either injected or implanted into the eye, may be
  used alone or in combination with other drugs or laser surgery to treat DMO.

*source: https://nei.nih.gov/health/diabetic/retinopathy 

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SOURCE: Exonate Ltd