Galapagos starts Phase 2 trial with GLPG1205 in ulcerative colitis patients

Mechelen, Belgium; 8 January 2015 - Galapagos NV (GLPG.NX) announced today it has initiated a Phase 2 Proof-of-Concept study in ulcerative colitis with GPR84 inhibitor GLPG1205, a potential novel treatment for Inflammatory Bowel Diseases. GLPG1205 arises from Galapagos` target discovery platform and is fully proprietary to Galapagos.

GLPG1205 (`1205) inhibits GPR84, a novel mechanism of action developed by Galapagos for Inflammatory Bowel Diseases (IBD). Galapagos has shown that GPR84 plays a key role in IBD and that `1205 is a selective inhibitor of GPR84 and very effective in pre-clinical models for IBD. In Phase 1 studies, `1205 showed good safety, full blockage of GPR84, and favorable drug-like properties. The first patients in this double-blind, placebo controlled study will initiate their treatment this week.

Details of the Phase 2 clinical study
The clinical Proof-of-Concept Phase 2 trial for `1205 will involve approximately 60 patients with moderate to severe ulcerative colitis. The aim is to evaluate the efficacy, safety and tolerability and pharmacokinetics of `1205, and to explore the effects of `1205 on selected biomarkers in this patient population. Patients will receive either 100 mg of `1205 or placebo (2:1 ratio) once-daily, for a period of twelve weeks. The primary endpoint will be the change in Mayo scores versus baseline at 8 weeks, which includes endoscopic confirmation on improvement of ulceration. This randomized, double-blind study will recruit patients in multiple sites in 6 countries: Belgium, Hungary, Poland, Czech Republic, Germany and Russia. Galapagos has received full approvals to start the trial in Belgium, Hungary, Germany and the Czech Republic, with patient recruitment already underway. Approvals in Russia and Poland are expected to follow this first quarter. The trial is anticipated to deliver top line data in H1 2016.

About ulcerative colitis
Ulcerative colitis (UC) is one of the forms of inflammatory bowel disease (IBD). It is a chronic, relapsing inflammatory disease of the colon, characterized by ulcers in the colon and rectum. Symptoms may include abdominal pain, malnutrition and diarrhea, often bloody. Ulcerative colitis has a prevalence of 200-250 cases per 100,000 individuals per year and a peak incidence between the ages of 15 and 25 years. This chronic condition is without a medical cure and commonly requires a lifetime of care. Current drug treatment includes anti-inflammatory steroids and immuno-suppressive agents such as TNF inhibitors. Over the long term, up to 25-30% of the patients will require surgery to remove the inflamed parts of the bowels.