Proprietary target discovery platform
- closely mimics the in vivo situation through the use of primary human cells with relevant trigger and readout for a specific disease phenotype
- identifies the optimal point to intervene in a disease pathway by knocking down of a given protein in these assays
- enables us to analyze rapidly all of the drugable genome and select pharmaceutically tractable protein targets directly by their ability to regulate key disease biology
Our product candidate filgotinib acts on a target whose role in the specific disease was discovered by us using our discovery platform and we believe is a proof of success of this approach. Filgotinib acts on JAK1 and we believe has potential for a best-in-class profile. We believe that further proof of this approach was shown in 2017 with autotaxin inhibitor GLPG1690 in IPF patients, and with fully human monoclonal antibody MOR106 directed toward IL-17C in AtD patients. Autotaxin and IL-17C are targets we discovered for these diseases.
The human genome is made up of tens of thousands of genes which code for the proteins that make up the human body. Nearly all chronic diseases and disorders are caused by a disruption in the normal function of certain proteins. The main goal of the industry is to develop molecules that alter the activity of these proteins so that normal function returns and the cause of the disease is minimized or eliminated. One of the main obstacles in discovering new drugs is to understand exactly which of the body’s thousands of proteins play a key role in a particular disease. Once these proteins are discovered, they become targets for drug discovery and development. Finding these targets is one of the critical steps in the drug discovery process. Our approach to target discovery is unique as our discovery platform focuses on target identification using primary human cells, which provides a good system to study the effect that a protein might have on the disease in the human body.
In order to study proteins in human cells, we take advantage of the distinctive properties of adenoviruses. Adenovirus is the virus that causes the common cold and has the capability to infect almost every type of human cell. The adenoviruses we work with have been engineered to act as a shuttle vehicle, allowing the delivery of specific pieces of DNA into human cells. Additionally, these viruses have been made replication incompetent, meaning they do not replicate in the human cell they infect, and so do not interfere with the processes in the cell. We engineered the viruses to carry small pieces of DNA, specific for individual human genes. When the virus enters the cell, this DNA piece leads to the production of a short sequence of RNA that is processed in the cell to become “short interfering RNA,” or siRNA, which specifically interferes with the mRNA of the protein it was designed for. By using these viruses, we can cause the cells to block, or “knock-down,” the production of a certain protein, mimicking what a small molecule drug does in the human body. We built a collection with these adenoviruses, now in excess of 20,000 viruses, that addresses around 6,000 drugable genes.
Our drug discovery research is based on the targets discovered using this technology. Once a target is validated, it is tested against large collections of chemical small molecules to identify chemical structures that interact with the target and block or activate protein production. These chemical structures are then optimized to obtain “drug-like” characteristics followed by testing of the product candidate in the clinic.
This discovery approach may increase the chances of success in bringing new mode of action drugs to the market. Since 2009, we have generated 37 pre-clinical candidates of which 27 have novel modes of action. Of these, 17 have entered the clinic, 11 with novel modes of action.
In addition to our pipeline of molecules in the clinic, we have multiple discovery programs which are advancing toward clinical development. We are exploring new modes of action in AS, psoriatic arthritis, IBD, AtD, lupus, IPF, systemic sclerosis, nonalcoholic steatohepatitis, type 2 diabetes, and hepatitis B.