Developing next generation treatments to preserve vision for patients with diseases affecting the back of the eye

Oxurion at a glance

Oxurion is a biopharmaceutical company developing next-generation standard ophthalmic therapies. These improve preservation of vision in patients with diabetic eye disease, the world's leading cause of blindness in people of working age.

Oxurion's clinical development pipeline comprises two potential new standards of care for DME patients: THR-149, a plasma kallikrein inhibitor for DME-patients who previously respond poorly to anti-VEGF therapy; and THR-687, a pan-RGD integrin antagonist for all DME patients.

Oxurion developed Jetrea® (ocriplasmin), the only pharmacological vitreolysis drug approved for treating symptomatic vitreomacular adhesion (in the U.S.) and vitreomacular traction (outside the U.S.). In March 2020, Oxurion and Inceptua Group signed a global commercial license agreement for Jetrea®.

Oxurion is headquartered in Leuven, Belgium, and is listed on Euronext Brussels under the symbol OXUR.

A word from the CEO and Chairman

Looking back on 2019, Oxurion's CEO Patrik De Haes, M.D. and its Chairman of the Board Thomas Clay agree that the first year after the company rebranding was transformational: The strategic decision was made to focus development on non-VEGF pathways and compounds targeting unmet medical needs of people suffering from diabetic retinal eye disorders.


Click here to read the full statement

Our milestones
Our mission

Our goal is to prevent vision loss and fight blindness worldwide by developing and delivering next-generation treatments for retinal disorders. We aim to lower the burden of treatment for patients and enhance practice management for physicians. We develop innovative compounds that each target a distinct, unexplored pathway to answer unmet medical needs in ophthalmology, with a focus on back of the eye disease. 

Our current pipeline of unique drug candidates is focused on new treatment approaches for diabetic eye disease, and we will continue leveraging our expertise in diseases affecting the back of the eye to expand our pipeline to address additional indications with high unmet needs. We are committed to innovation through cross-disciplinary and cooperative research across the globe. Collaborating with stakeholders worldwide, we aim to deliver solutions enabling equal, affordable vision preservation for all people.

Part of a global retina community

The engagement of Oxurion reaches far beyond R&D and the promotions of new therapies. Through sustainable partnerships with social initiatives ‑ medical charity, education, culture - Oxurion is committed to increasing patient access to therapies for disorders affecting the back of the eye. Together, we set our sights on preventing vision loss, fighting blindness and providing a better quality of life to those in need.

Retina Global

This international non-profit focused on sustainable solutions for retinal services in underserved areas around the world. Oxurion is currently supporting Retina Global in organizing certification courses in diabetic retinopathy for ophthalmologists and ophthalmology residents in Bolivia. "In underserved areas, there is a great need to treat diabetic retinopathy (DR). Everywhere we go we see people with DR, and often treatment is unaffordable or there simply isn't a retina specialist available. Doctors in these countries don't always have the knowledge or the tools to diagnose these eye diseases", Rajat Agrawal, CEO of Retina Global, explains.

Prevent Blindness

This volunteer eye health and safety organization is dedicated to fighting blindness and saving sight for over a century. Oxurion is currently partnering with Prevent Blindness to encourage people to make their eye health a priority. "Through awareness and education, our goal is to minimize the damaging effects that diabetes can have on vision", Jeff Todd, CEO of Prevent Blindness, says.


Our team
People at Oxurion

Oxurion employs 77 people worldwide, all are united by a shared goal: to make Oxurion a global leader in developing and commercializing innovative treatments for chronic eye disorders.

Most members of the Oxurion international team hold a master’s or PhD degree. The majority works at our headquarters in Leuven (Belgium) or from our office in New Jersey (U.S.).

Each member of the Oxurion team provides a distinct viewpoint and set of experiences in the biopharmaceutical industry. The diversity and experience of the team stimulates creativity and problem-solving while enabling the company to successfully develop and commercialize therapeutics to preserve the vision of patients worldwide.

Want to join our team?

Visit our careers site or contact us

Board of Directors

Thomas Clay

Non-Executive, Independent Director, Chairman

Thomas Clay is Vice-President of East Hill Management Company, LLC and Chairman and CEO of Golden Queen Mining Co., Ltd. He also serves as a Director of the Clay Mathematics Institute, Inc. Thomas is a graduate of Harvard College, Oxford University, and Harvard Business School, following in the footsteps of his father, Landon Clay, who led the first external investment into Oxurion until leaving the Board in 2011.


Patrik De Haes, MD

Chief Executive Officer, Executive Director

Patrik De Haes, MD, has over 25 years of experience in the global healthcare industry in product development, marketing and general management. Before joining the company as CEO in 2008, Patrik was Head of Roche's Global Insulin Infusion business. Prior to that he was President and CEO of Disetronic Medical Systems Inc., a medical device company based in Minneapolis, USA. He also led the global development and commercialization of the first biotech product at Sandoz Pharma (now Novartis) in Switzerland. Past Chairman of FlandersBio, Patrik is an active member of Belgium's local and regional biotech and life science community. He is also Executive Chairman of Oncurious NV, an oncology company co-created by Oxurion and VIB LIfesciences. Patrik holds a degree in Medicine from the University of Leuven.


Adrienne Graves, PhD

Non-Executive Director

Dr. Adrienne Graves is a board member of multiple companies and organizations including Akorn Inc., Nicox, the American Society of Cataract and Refractive Surgery, the Glaucoma Research Foundation, and the American Academy of Ophthalmology. She was the president and chief executive officer of Santen Inc., the U.S. arm of Japan’s largest ophthalmic pharmaceutical company, Santen Pharmaceutical Co., Ltd. Before becoming the president and chief executive officer, she was the vice president of clinical affairs and senior vice president of worldwide clinical affairs for Japan, U.S. and Europe at Santen Inc. Prior to Santen Inc., Dr. Graves was the director of international ophthalmology at Alcon Laboratories, Inc. She was also the co-founder of Glaucoma 360 (Glaucoma Research Foundation) and Ophthalmic Women Leaders (OWL).

Dr. Graves received her bachelor’s degree in psychology with honors from Brown University, her Ph.D. from the University of Michigan in psychobiology and completed a postdoctoral fellowship in visual neuroscience from the University of Paris.



David Guyer, MD

Non-Executive Director

David Guyer, MD, is a long-standing member of the US retina community. He is Co-Founder and Executive Chairman of the Ophthotech Corporation, where he was previously CEO.
Dr. Guyer is also on the boards of Sound Pharmaceuticals, iStar, and PanOptica. He co-founded and served as CEO and as a director of Eyetech Pharmaceuticals, Inc., which he led through private, public and corporate financings. He also oversaw the rapid development and successful commercialization of Macugen® (pegaptanib sodium), the first FDA-approved anti-VEGF pharmacological treatment for treatment of wet AMD. Dr. Guyer had a successful career in academic medicine as Professor and Chairman of the Department of Ophthalmology at New York University School of Medicine. Dr. Guyer received his Bachelor of Science (BSc) degree from Yale College summa cum laude and his medical degree (MD) from Johns Hopkins Medical School. He completed his ophthalmology residency at Wilmer Ophthalmological Institute at Johns Hopkins Hospital and a retinal fellowship at the Massachusetts Eye and Ear Infirmary at Harvard Medical School.


Emmanuèle Attout

Non-Executive, Independent Director

Emmanuèle Attout was an audit partner at PricewaterhouseCoopers from 1994 to 2014, overseeing audits of a range of clients including banks, insurance companies, investment funds and asset managers. In recent years she managed the audits of listed companies and pharmaceutical and life sciences companies, giving her the substantial experience that she now brings to the Board and the Audit Committee.
Emmanuèle is an independent non-executive director and member of the audit committees of Atenor SA and Schréder SA. She is co-founder and since 2009 director of the NGO Women on Board. She is on the board of Toutes à l'école Belgique asbl. Emmanuèle graduated in Applied Economic Sciences from the Catholic University of Louvain.


Baron Philippe Vlerick

Non-Executive, Independent Director

Philippe Vlerick is the owner, Chairman and CEO of several businesses in Belgium and abroad. He is currently Chairman and CEO of Vlerick Group (Belgium), Chairman and CEO of UCO NV, Chairman of Pentahold, Chairman of the Smartphoto Group, Chairman of the Festival Van Vlaanderen, and Commissioner-General of Europalia Romania.
Baron Vlerick is Vice Chairman of the KBC Group, Corelio, and Durabilis, and a member of the boards of directors of Exmar, Hamon & Cie, Besix Group, BMT, Etex and L.V.D. (Belgium). Mr. Vlerick holds a degree in Philosophy and Law from the University of Leuven and an MBA in General Management (PUB) (Ghent, Vlerick School of Management – 1979). He also holds an MBA from Indiana University, Bloomington, USA (1980). He was chosen 2006 Manager of the Year by Trends, a leading business magazine in Belgium. He was granted the title of Baron in 2008 and became Commander of the Order of Leopold in 2013.

Executive Committee

Patrik De Haes, MD

Chief Executive Officer

Patrik De Haes, MD, has over 25 years of experience in the global healthcare industry in product development, marketing and general management. Before joining Oxurion as CEO in 2008, Patrik was head of Roche’s Global Insulin Infusion division. Prior to that he was President and CEO of Disetronic Medical Systems Inc., a medical device company based in Minneapolis, USA. He also led the global development and commercialization of the first biotech product at Sandoz Pharma (now Novartis) in Switzerland. Patrik holds a degree in Medicine from the University of Leuven. 


Tom Graney, CFA

Chief Financial Officer

Tom Graney, has extensive global finance experience that spans corporate development, commercial strategy, portfolio management and supply chain management, communication and investor relations.  He is the former Chief Financial Officer of Generation Bio, was Senior Vice President and Chief Financial Officer at Vertex Pharmaceuticals Inc. and Chief Financial Officer and Senior Vice President of Finance & Corporate Strategy at Ironwood Pharmaceuticals. Prior to Ironwood Pharmaceuticals, Mr. Graney spent 20 years working with J&J and its affiliates, serving for four years as worldwide vice president of finance and Chief Financial Officer of Ethicon.  A Chartered Financial Analyst charterholder, Mr. Graney holds a B.S. in accounting from the University of Delaware and an M.B.A. in Marketing, Finance and International Business from the Leonard N. Stern School of Business at New York University. 


Grace Chang, MD, PhD

Chief Medical Officer

Dr.Chang joins Oxurion from Notal Vision Inc, where she held the position of CMO and was responsible for the scientific and clinical strategy, clinical development and medical affairs programs. She is a board-certified medical and surgical retina specialist and is an Adjunct Clinical Associate Professor in the Department of Ophthalmology, Vitreoretinal Service at the University of Southern California.

Prior to this, Dr. Chang held several high-level clinical and strategic roles at Alcon, a former subsidiary of Novartis, following a faculty appointment at the University of Washington.

Dr. Chang completed her ophthalmology residency and vitreoretinal fellowship at Harvard Medical School, Massachusetts Eye and Ear Infirmary. Additionally, Dr. Chang earned her M.D. from Stanford University, and her Ph.D. from the California Institute of Technology.


Jean Feyen, PhD

Chief Scientific Officer

Dr. Feyen oversees all preclinical activities at Oxurion. He joined the company in October 2013 from Galapagos, where he was the VP for alliance and portfolio management. He started his professional career with an academic appointment at the University of Connecticut Health Center. After that, he held several positions in the pharmaceutical and biotech industries. Jean progressed through the ranks in several drug discovery positions in Switzerland and the US, finally heading the translational science and disease biology effort on cardiovascular and metabolic disease at Bristol-Myers Squibb. Jean holds a PhD from the University of Leiden and is an inventor on several patents. He has authored more than sixty peer-reviewed publications. Jean is currently an adjunct professor in the department of pharmacology at the University of Medicine and Dentistry of New Jersey.


Kathleen Paisley

Chief Legal Officer and General Counsel 

Kathleen Paisley is Chief Legal Officer and General Counsel at Oxurion.  She has acted as outside counsel to Oxurion since 2011 and has extensive experience in biotechnology and pharmaceuticals in Europe and the United States. She is a US national who has been based in Brussels, London and the Hague for most of her career.  Prior to joining Oxurion, she served as a partner of Morrison & Foerster, White & Case and Ambos Lawyers, and has held previous in-house positions in London and Belgium.  She is a member of the New York and D.C. bars and is triple qualified with degrees from Yale Law School, an MBA in finance and has passed the Certified Public Accountancy exam, all of which expertise she brings to bear in running the legal function at Oxurion.   


Andy De Deene, MD, MBA

Chief Development Officer

Andy De Deene has extensive experience in drug development, including clinical development, pharmacovigilance and medical affairs. He previously worked as both Manager and Director for the Janssen Research Foundation and XCellentis in Belgium. Andy holds an MD from the University of Ghent, trained as a dermatologist at the University of Cologne, and obtained an executive MBA from Vlerick Management School.


Michaël Dillen

Chief Corporate Development Officer

Michaël heads Corporate Development and is Secretary to the Board of Directors at Oxurion. He has gained vast experience in strategic partnering, corporate finance and M&A. Prior to joining Oxurion, Michaël was a senior corporate development executive at Mithra Pharmaceuticals, a biotech company listed on Euronext. Before, he worked for Terumo, a Japanese stock listed medtech and pharma company. He initiated his career as a lawyer, where he developed a legal practice focusing on corporate and commercial advisory towards both private and institutional clients in the life sciences industry.

Michaël holds a master’s degree in business (Solvay Business School) and a degree corporate finance (Saïd Business School, University of Oxford), as well as a law degree (LL.M.) in both business and in health regulations (University of Antwerp and Queen Mary and Westfield College, University of London).


Julie Binon

Chief People Officer

Julie has over 15 years of experience in senior Human Resource roles in international companies. Prior to Oxurion, Julie was leading HR projects at a.o. Deloitte, Avnet (IT distribution), and was EMEA HR Manager at Nu Skin Enterprises, a US-listed company active in skincare and food supplements. She started her career as an attorney at law and tax consultant at Ernst & Young.

Julie holds a Master's Degree in Law and in Tax Law (Catholic University of Leuven).


Oxurion relies on a network of experienced partners to bring the best possible eye care to patients across the globe. These partnerships include research collaboration, co-development, co-commercialization, and in-licensing agreements.

We are always open to new opportunities for partnership and collaboration for improving eye care.

Want to become a partner? Contact us!

Venture projects

Oxurion is focused on developing innovative medicine and continues to broaden its activities through strategic research projects, joint development, licensing deals and joint ventures. Oncurious is a joint venture between Oxurion and VIB, the leading life science research institute in Flanders, Belgium. It is focused on developing innovative medicines for treating a broad spectrum of cancers. 

The company is developing a portfolio of next-generation immunooncology assets, drawing on seminal work at the VIB-KU Leuven labs of Gabriele Bergers and Massimiliano Mazzone and the VIB-VUB lab of Jo Van Ginderachter. Oncurious’s phase I/IIa clinical trial with TB-403 (anti-PlGF) researches alternative treatment options for medulloblastoma, a rare life-threatening brain tumor in children.

Global locations

Corporate HQ

Oxurion nv
Gaston Geenslaan 1
B-3001 Leuven

T +32 16 75 13 10
F +32 16 75 13 11


ThromboGenics, Inc. - subsidiary of Oxurion nv
101 Wood Avenue South
Suite 610
Iselin, NJ 08830 USA

T +1 732 590 2900
T +1 855 301 1600


Oxurion nv Irish Branch
Office 109A
12 Camden Row
Dublin 8, Ireland

T +353 1 479 0596

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